bt2/native_bt_clock_snapshot.i \
bt2/native_bt_component.i \
bt2/native_bt_component_class.i \
+ bt2/native_bt_component_class.i.h \
bt2/native_bt_connection.i \
bt2/native_bt_error.i \
bt2/native_bt_event.i \
bt2/native_bt_field_class.i \
bt2/native_bt_field_path.i \
bt2/native_bt_graph.i \
+ bt2/native_bt_graph.i.h \
bt2/native_bt_integer_range_set.i \
bt2/native_bt_interrupter.i \
bt2/native_bt_logging.i \
bt2/native_bt_message.i \
bt2/native_bt_message_iterator.i \
+ bt2/native_bt_message_iterator.i.h \
bt2/native_bt_packet.i \
bt2/native_bt_plugin.i \
+ bt2/native_bt_plugin.i.h \
bt2/native_bt_port.i \
bt2/native_bt_query_exec.i \
bt2/native_bt_stream.i \
bt2/native_bt_stream_class.i \
bt2/native_bt_trace.i \
+ bt2/native_bt_trace.i.h \
bt2/native_bt_trace_class.i \
+ bt2/native_bt_trace_class.i.h \
bt2/native_bt_value.i \
+ bt2/native_bt_value.i.h \
bt2/native_bt_version.i
# Non-generated files built into the native library.
%include <babeltrace2/graph/self-component-class-sink.h>
%{
-#include "logging/comp-logging.h"
-
-/*
- * This hash table associates a BT component class object address to a
- * user-defined Python class (PyObject *). The keys and values are NOT
- * owned by this hash table. The Python class objects are owned by the
- * Python module, which should not be unloaded until it is not possible
- * to create a user Python component anyway.
- *
- * This hash table is written to when a user-defined Python component
- * class is created by one of the bt_bt2_component_class_*_create()
- * functions.
- *
- * This function is read from when a user calls bt_component_create()
- * with a component class pointer created by one of the functions above.
- * In this case, the original Python class needs to be found to
- * instantiate it and associate the created Python component object with
- * a BT component object instance.
- */
-
-static GHashTable *bt_cc_ptr_to_py_cls;
-
-static
-void register_cc_ptr_to_py_cls(struct bt_component_class *bt_cc,
- PyObject *py_cls)
-{
- if (!bt_cc_ptr_to_py_cls) {
- /*
- * Lazy-initializing this GHashTable because GLib
- * might not be initialized yet and it needs to be
- * before we call g_hash_table_new()
- */
- BT_LOGD_STR("Creating native component class to Python component class hash table.");
- bt_cc_ptr_to_py_cls = g_hash_table_new(g_direct_hash, g_direct_equal);
- BT_ASSERT(bt_cc_ptr_to_py_cls);
- }
-
- g_hash_table_insert(bt_cc_ptr_to_py_cls, (gpointer) bt_cc,
- (gpointer) py_cls);
-}
-
-static
-PyObject *lookup_cc_ptr_to_py_cls(const bt_component_class *bt_cc)
-{
- if (!bt_cc_ptr_to_py_cls) {
- BT_LOGW("Cannot look up Python component class because hash table is NULL: "
- "comp-cls-addr=%p", bt_cc);
- return NULL;
- }
-
- return (PyObject *) g_hash_table_lookup(bt_cc_ptr_to_py_cls,
- (gconstpointer) bt_cc);
-}
-
-
-/*
- * Useful Python objects.
- */
-
-static PyObject *py_mod_bt2 = NULL;
-static PyObject *py_mod_bt2_exc_error_type = NULL;
-static PyObject *py_mod_bt2_exc_memory_error = NULL;
-static PyObject *py_mod_bt2_exc_try_again_type = NULL;
-static PyObject *py_mod_bt2_exc_stop_type = NULL;
-static PyObject *py_mod_bt2_exc_unknown_object_type = NULL;
-
-static
-void bt_bt2_cc_init_from_bt2(void)
-{
- /*
- * This is called once the bt2 package is loaded.
- *
- * Those modules and functions are needed while the package is
- * used. Loading them here is safe because we know the bt2
- * package is imported, and we know that the user cannot use the
- * code here without importing bt2 first.
- */
- py_mod_bt2 = PyImport_ImportModule("bt2");
- BT_ASSERT(py_mod_bt2);
- py_mod_bt2_exc_error_type =
- PyObject_GetAttrString(py_mod_bt2, "_Error");
- BT_ASSERT(py_mod_bt2_exc_error_type);
- py_mod_bt2_exc_memory_error =
- PyObject_GetAttrString(py_mod_bt2, "_MemoryError");
- BT_ASSERT(py_mod_bt2_exc_memory_error);
- py_mod_bt2_exc_try_again_type =
- PyObject_GetAttrString(py_mod_bt2, "TryAgain");
- BT_ASSERT(py_mod_bt2_exc_try_again_type);
- py_mod_bt2_exc_stop_type =
- PyObject_GetAttrString(py_mod_bt2, "Stop");
- BT_ASSERT(py_mod_bt2_exc_stop_type);
- py_mod_bt2_exc_unknown_object_type =
- PyObject_GetAttrString(py_mod_bt2, "UnknownObject");
- BT_ASSERT(py_mod_bt2_exc_unknown_object_type);
-}
-
-static
-void bt_bt2_cc_exit_handler(void)
-{
- /*
- * This is an exit handler (set by the bt2 package).
- *
- * We only give back the references that we took in
- * bt_bt2_cc_init_from_bt2() here. The global variables continue
- * to exist for the code of this file, but they are now borrowed
- * references. If this code is executed, it means that somehow
- * the modules are still loaded, so it should be safe to use
- * them even without a strong reference.
- *
- * We cannot do this in the library's destructor because it
- * gets executed once Python is already finalized.
- */
- Py_XDECREF(py_mod_bt2);
- Py_XDECREF(py_mod_bt2_exc_error_type);
- Py_XDECREF(py_mod_bt2_exc_try_again_type);
- Py_XDECREF(py_mod_bt2_exc_stop_type);
- Py_XDECREF(py_mod_bt2_exc_unknown_object_type);
-}
-
-
-/* Library destructor */
-
-__attribute__((destructor))
-static
-void native_comp_class_dtor(void) {
- /* Destroy component class association hash table */
- if (bt_cc_ptr_to_py_cls) {
- BT_LOGD_STR("Destroying native component class to Python component class hash table.");
- g_hash_table_destroy(bt_cc_ptr_to_py_cls);
- }
-}
-
-static
-void restore_current_thread_error_and_append_exception_chain_recursive(
- int active_log_level, PyObject *py_exc_value,
- bt_self_component_class *self_component_class,
- bt_self_component *self_component,
- bt_self_message_iterator *self_message_iterator,
- const char *module_name)
-{
- PyObject *py_exc_cause_value;
- PyObject *py_exc_type = NULL;
- PyObject *py_exc_tb = NULL;
- GString *gstr = NULL;
-
- /* If this exception has a cause, handle that one first. */
- py_exc_cause_value = PyException_GetCause(py_exc_value);
- if (py_exc_cause_value) {
- restore_current_thread_error_and_append_exception_chain_recursive(
- active_log_level, py_exc_cause_value,
- self_component_class, self_component,
- self_message_iterator, module_name);
- }
-
- /*
- * If the raised exception is a bt2._Error, restore the wrapped error.
- */
- if (PyErr_GivenExceptionMatches(py_exc_value, py_mod_bt2_exc_error_type)) {
- PyObject *py_error_swig_ptr;
- const bt_error *error;
- int ret;
-
- /*
- * We never raise a bt2._Error with a cause: it should be the
- * end of the chain.
- */
- BT_ASSERT(!py_exc_cause_value);
-
- /*
- * We steal the error object from the exception, to move
- * it back as the current thread's error.
- */
- py_error_swig_ptr = PyObject_GetAttrString(py_exc_value, "_ptr");
- BT_ASSERT(py_error_swig_ptr);
-
- ret = PyObject_SetAttrString(py_exc_value, "_ptr", Py_None);
- BT_ASSERT(ret == 0);
-
- ret = SWIG_ConvertPtr(py_error_swig_ptr, (void **) &error,
- SWIGTYPE_p_bt_error, 0);
- BT_ASSERT(ret == 0);
-
- BT_CURRENT_THREAD_MOVE_ERROR_AND_RESET(error);
-
- Py_DECREF(py_error_swig_ptr);
- }
-
- py_exc_type = PyObject_Type(py_exc_value);
- py_exc_tb = PyException_GetTraceback(py_exc_value);
-
- gstr = bt_py_common_format_exception(py_exc_type, py_exc_value,
- py_exc_tb, active_log_level, false);
- if (!gstr) {
- /* bt_py_common_format_exception has already warned. */
- goto end;
- }
-
- if (self_component_class) {
- BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_COMPONENT_CLASS(
- self_component_class, "%s", gstr->str);
- } else if (self_component) {
- BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_COMPONENT(
- self_component, "%s", gstr->str);
- } else if (self_message_iterator) {
- BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_MESSAGE_ITERATOR(
- self_message_iterator, "%s", gstr->str);
- } else {
- BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(
- module_name, "%s", gstr->str);
- }
-
-end:
- if (gstr) {
- g_string_free(gstr, TRUE);
- }
-
- Py_XDECREF(py_exc_cause_value);
- Py_XDECREF(py_exc_type);
- Py_XDECREF(py_exc_tb);
-}
-
-/*
- * If you have the following code:
- *
- * try:
- * try:
- * something_that_raises_bt2_error()
- * except bt2._Error as e1:
- * raise ValueError from e1
- * except ValueError as e2:
- * raise TypeError from e2
- *
- * We will have the following exception chain:
- *
- * TypeError -> ValueError -> bt2._Error
- *
- * Where the TypeError is the current exception (obtained from PyErr_Fetch).
- *
- * The bt2._Error contains a `struct bt_error *` that used to be the current
- * thread's error, at the moment the exception was raised.
- *
- * This function gets to the bt2._Error and restores the wrapped
- * `struct bt_error *` as the current thread's error.
- *
- * Then, for each exception in the chain, starting with the oldest one, it adds
- * an error cause to the current thread's error.
- */
-static
-void restore_bt_error_and_append_current_exception_chain(
- int active_log_level,
- bt_self_component_class *self_component_class,
- bt_self_component *self_component,
- bt_self_message_iterator *self_message_iterator,
- const char *module_name)
-{
- BT_ASSERT(PyErr_Occurred());
-
- /* Used to access and restore the current exception. */
- PyObject *py_exc_type;
- PyObject *py_exc_value;
- PyObject *py_exc_tb;
-
- /* Fetch and normalize the Python exception. */
- PyErr_Fetch(&py_exc_type, &py_exc_value, &py_exc_tb);
- PyErr_NormalizeException(&py_exc_type, &py_exc_value, &py_exc_tb);
- BT_ASSERT(py_exc_type);
- BT_ASSERT(py_exc_value);
- BT_ASSERT(py_exc_tb);
-
- /*
- * Set the exception's traceback so it's possible to get it using
- * PyException_GetTraceback in
- * restore_current_thread_error_and_append_exception_chain_recursive.
- */
- PyException_SetTraceback(py_exc_value, py_exc_tb);
-
- restore_current_thread_error_and_append_exception_chain_recursive(
- active_log_level, py_exc_value, self_component_class,
- self_component, self_message_iterator, module_name);
-
- PyErr_Restore(py_exc_type, py_exc_value, py_exc_tb);
-}
-
-static inline
-void log_exception_and_maybe_append_error(int func_log_level,
- int active_log_level, bool append_error,
- bt_self_component_class *self_component_class,
- bt_self_component *self_component,
- bt_self_message_iterator *self_message_iterator,
- const char *module_name)
-{
- GString *gstr;
-
- BT_ASSERT(PyErr_Occurred());
- gstr = bt_py_common_format_current_exception(active_log_level);
- if (!gstr) {
- /* bt_py_common_format_current_exception() logs errors */
- goto end;
- }
-
- BT_COMP_LOG_CUR_LVL(func_log_level, active_log_level, self_component,
- "%s", gstr->str);
-
- if (append_error) {
- restore_bt_error_and_append_current_exception_chain(
- active_log_level, self_component_class, self_component,
- self_message_iterator, module_name);
-
- }
-
-end:
- if (gstr) {
- g_string_free(gstr, TRUE);
- }
-}
-
-static
-bt_logging_level get_self_component_log_level(bt_self_component *self_comp)
-{
- return bt_component_get_logging_level(
- bt_self_component_as_component(self_comp));
-}
-
-static
-bt_logging_level get_self_message_iterator_log_level(
- bt_self_message_iterator *self_msg_iter)
-{
- bt_self_component *self_comp =
- bt_self_message_iterator_borrow_component(self_msg_iter);
-
- return get_self_component_log_level(self_comp);
-}
-
-static inline
-void loge_exception(const char *module_name, int active_log_level)
-{
- log_exception_and_maybe_append_error(BT_LOG_ERROR, active_log_level,
- true, NULL, NULL, NULL, module_name);
-}
-
-static
-void loge_exception_message_iterator(
- bt_self_message_iterator *self_message_iterator)
-{
- bt_logging_level log_level = get_self_message_iterator_log_level(
- self_message_iterator);
-
- log_exception_and_maybe_append_error(BT_LOG_ERROR, log_level,
- true, NULL, NULL, self_message_iterator, NULL);
-}
-
-static inline
-void logw_exception(int active_log_level)
-{
- log_exception_and_maybe_append_error(BT_LOG_WARNING, active_log_level,
- false, NULL, NULL, NULL, NULL);
-}
-
-static inline
-int py_exc_to_status(bt_self_component_class *self_component_class,
- bt_self_component *self_component,
- bt_self_message_iterator *self_message_iterator,
- const char *module_name, int active_log_level)
-{
- int status = __BT_FUNC_STATUS_OK;
- PyObject *exc = PyErr_Occurred();
-
- if (!exc) {
- goto end;
- }
-
- if (PyErr_GivenExceptionMatches(exc,
- py_mod_bt2_exc_try_again_type)) {
- status = __BT_FUNC_STATUS_AGAIN;
- } else if (PyErr_GivenExceptionMatches(exc,
- py_mod_bt2_exc_stop_type)) {
- status = __BT_FUNC_STATUS_END;
- } else if (PyErr_GivenExceptionMatches(exc,
- py_mod_bt2_exc_unknown_object_type)) {
- status = __BT_FUNC_STATUS_UNKNOWN_OBJECT;
- } else {
- /*
- * Unknown exception: convert to general error.
- *
- * Because we only want to fetch the log level when
- * we actually get an exception, and not systematically
- * when we call py_exc_to_status() (as py_exc_to_status()
- * can return `__BT_FUNC_STATUS_OK`), we get it here
- * depending on the actor's type.
- */
- if (self_component) {
- active_log_level = get_self_component_log_level(
- self_component);
- } else if (self_message_iterator) {
- active_log_level = get_self_message_iterator_log_level(
- self_message_iterator);
- }
-
- BT_ASSERT(active_log_level != -1);
- log_exception_and_maybe_append_error(BT_LOG_WARNING,
- active_log_level, true,
- self_component_class, self_component,
- self_message_iterator, module_name);
-
- if (PyErr_GivenExceptionMatches(exc,
- py_mod_bt2_exc_memory_error)) {
- status = __BT_FUNC_STATUS_MEMORY_ERROR;
- } else {
- status = __BT_FUNC_STATUS_ERROR;
- }
- }
-
-end:
- PyErr_Clear();
- return status;
-}
-
-static
-int py_exc_to_status_component_class(
- bt_self_component_class *self_component_class,
- int active_log_level)
-{
- return py_exc_to_status(self_component_class, NULL, NULL, NULL,
- active_log_level);
-}
-
-static
-int py_exc_to_status_component(bt_self_component *self_component)
-{
- return py_exc_to_status(NULL, self_component, NULL, NULL, -1);
-}
-
-static
-int py_exc_to_status_message_iterator(
- bt_self_message_iterator *self_message_iterator)
-{
- return py_exc_to_status(NULL, NULL, self_message_iterator, NULL, -1);
-}
-
-/* Component class proxy methods (delegate to the attached Python object) */
-
-static
-bt_component_class_init_method_status component_class_init(
- bt_self_component *self_component,
- void *self_component_v,
- swig_type_info *self_comp_cls_type_swig_type,
- const bt_value *params,
- void *init_method_data)
-{
- const bt_component *component = bt_self_component_as_component(self_component);
- const bt_component_class *component_class = bt_component_borrow_class_const(component);
- bt_component_class_init_method_status status = __BT_FUNC_STATUS_OK;
- PyObject *py_cls = NULL;
- PyObject *py_comp = NULL;
- PyObject *py_params_ptr = NULL;
- PyObject *py_comp_ptr = NULL;
- bt_logging_level log_level = get_self_component_log_level(
- self_component);
-
- (void) init_method_data;
-
- BT_ASSERT(self_component);
- BT_ASSERT(self_component_v);
- BT_ASSERT(self_comp_cls_type_swig_type);
-
- /*
- * Get the user-defined Python class which created this
- * component's class in the first place (borrowed
- * reference).
- */
- py_cls = lookup_cc_ptr_to_py_cls(component_class);
- if (!py_cls) {
- BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component,
- "Cannot find Python class associated to native component class: "
- "comp-cls-addr=%p", component_class);
- goto error;
- }
-
- /* Parameters pointer -> SWIG pointer Python object */
- py_params_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(params),
- SWIGTYPE_p_bt_value, 0);
- if (!py_params_ptr) {
- BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component,
- "Failed to create a SWIG pointer object.");
- goto error;
- }
-
- py_comp_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(self_component_v),
- self_comp_cls_type_swig_type, 0);
- if (!py_comp_ptr) {
- BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component,
- "Failed to create a SWIG pointer object.");
- goto error;
- }
-
- /*
- * Do the equivalent of this:
- *
- * py_comp = py_cls._bt_init_from_native(py_comp_ptr, py_params_ptr)
- *
- * _UserComponentType._bt_init_from_native() calls the Python
- * component object's __init__() function.
- */
- py_comp = PyObject_CallMethod(py_cls,
- "_bt_init_from_native", "(OO)", py_comp_ptr, py_params_ptr);
- if (!py_comp) {
- BT_COMP_LOG_CUR_LVL(BT_LOG_WARNING, log_level, self_component,
- "Failed to call Python class's _bt_init_from_native() method: "
- "py-cls-addr=%p", py_cls);
- status = py_exc_to_status_component(self_component);
- goto end;
- }
-
- /*
- * Our user Python component object is now fully created and
- * initialized by the user. Since we just created it, this
- * native component is its only (persistent) owner.
- */
- bt_self_component_set_data(self_component, py_comp);
- py_comp = NULL;
- goto end;
-
-error:
- status = __BT_FUNC_STATUS_ERROR;
-
- /*
- * Clear any exception: we're returning a bad status anyway. If
- * this call originated from Python (creation from a plugin's
- * component class, for example), then the user gets an
- * appropriate creation error.
- */
- PyErr_Clear();
-
-end:
- Py_XDECREF(py_comp);
- Py_XDECREF(py_params_ptr);
- Py_XDECREF(py_comp_ptr);
- return status;
-}
-
-/*
- * Method of bt_component_class_source to initialize a bt_self_component_source
- * of that class.
- */
-
-static
-bt_component_class_init_method_status component_class_source_init(
- bt_self_component_source *self_component_source,
- const bt_value *params, void *init_method_data)
-{
- bt_self_component *self_component = bt_self_component_source_as_self_component(self_component_source);
- return component_class_init(
- self_component,
- self_component_source,
- SWIGTYPE_p_bt_self_component_source,
- params, init_method_data);
-}
-
-static
-bt_component_class_init_method_status component_class_filter_init(
- bt_self_component_filter *self_component_filter,
- const bt_value *params, void *init_method_data)
-{
- bt_self_component *self_component = bt_self_component_filter_as_self_component(self_component_filter);
- return component_class_init(
- self_component,
- self_component_filter,
- SWIGTYPE_p_bt_self_component_filter,
- params, init_method_data);
-}
-
-static
-bt_component_class_init_method_status component_class_sink_init(
- bt_self_component_sink *self_component_sink,
- const bt_value *params, void *init_method_data)
-{
- bt_self_component *self_component = bt_self_component_sink_as_self_component(self_component_sink);
- return component_class_init(
- self_component,
- self_component_sink,
- SWIGTYPE_p_bt_self_component_sink,
- params, init_method_data);
-}
-
-static
-void component_class_finalize(bt_self_component *self_component)
-{
- PyObject *py_comp = bt_self_component_get_data(self_component);
- BT_ASSERT(py_comp);
-
- /* Call user's _user_finalize() method */
- PyObject *py_method_result = PyObject_CallMethod(py_comp,
- "_user_finalize", NULL);
-
- if (PyErr_Occurred()) {
- bt_logging_level log_level = get_self_component_log_level(
- self_component);
-
- BT_COMP_LOG_CUR_LVL(BT_LOG_WARNING, log_level, self_component,
- "User component's _user_finalize() method raised an exception: ignoring:");
- logw_exception(log_level);
- }
-
- /*
- * Ignore any exception raised by the _user_finalize() method
- * because it won't change anything at this point: the component
- * is being destroyed anyway.
- */
- PyErr_Clear();
- Py_XDECREF(py_method_result);
- Py_DECREF(py_comp);
-}
-
-static
-void component_class_source_finalize(bt_self_component_source *self_component_source)
-{
- bt_self_component *self_component = bt_self_component_source_as_self_component(self_component_source);
- component_class_finalize(self_component);
-}
-
-static
-void component_class_filter_finalize(bt_self_component_filter *self_component_filter)
-{
- bt_self_component *self_component = bt_self_component_filter_as_self_component(self_component_filter);
- component_class_finalize(self_component);
-}
-
-static
-void component_class_sink_finalize(bt_self_component_sink *self_component_sink)
-{
- bt_self_component *self_component = bt_self_component_sink_as_self_component(self_component_sink);
- component_class_finalize(self_component);
-}
-
-static
-bt_bool component_class_can_seek_beginning(
- bt_self_message_iterator *self_message_iterator)
-{
- PyObject *py_iter;
- PyObject *py_result = NULL;
- bt_bool can_seek_beginning = false;
-
- py_iter = bt_self_message_iterator_get_data(self_message_iterator);
- BT_ASSERT(py_iter);
-
- py_result = PyObject_GetAttrString(py_iter, "_bt_can_seek_beginning_from_native");
-
- BT_ASSERT(!py_result || PyBool_Check(py_result));
-
- if (py_result) {
- can_seek_beginning = PyObject_IsTrue(py_result);
- } else {
- /*
- * Once can_seek_beginning can report errors, convert the
- * exception to a status. For now, log and return false;
- */
- loge_exception_message_iterator(self_message_iterator);
- PyErr_Clear();
- }
-
- Py_XDECREF(py_result);
-
- return can_seek_beginning;
-}
-
-static
-bt_component_class_message_iterator_seek_beginning_method_status
-component_class_seek_beginning(bt_self_message_iterator *self_message_iterator)
-{
- PyObject *py_iter;
- PyObject *py_result;
- bt_component_class_message_iterator_seek_beginning_method_status status;
-
- py_iter = bt_self_message_iterator_get_data(self_message_iterator);
- BT_ASSERT(py_iter);
- py_result = PyObject_CallMethod(py_iter, "_bt_seek_beginning_from_native",
- NULL);
- BT_ASSERT(!py_result || py_result == Py_None);
- status = py_exc_to_status_message_iterator(self_message_iterator);
- Py_XDECREF(py_result);
- return status;
-}
-
-static
-bt_component_class_port_connected_method_status component_class_port_connected(
- bt_self_component *self_component,
- void *self_component_port,
- swig_type_info *self_component_port_swig_type,
- bt_port_type self_component_port_type,
- const void *other_port,
- swig_type_info *other_port_swig_type)
-{
- bt_component_class_port_connected_method_status status;
- PyObject *py_comp = NULL;
- PyObject *py_self_port_ptr = NULL;
- PyObject *py_other_port_ptr = NULL;
- PyObject *py_method_result = NULL;
- bt_logging_level log_level = get_self_component_log_level(
- self_component);
-
- py_comp = bt_self_component_get_data(self_component);
- BT_ASSERT(py_comp);
- py_self_port_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(self_component_port),
- self_component_port_swig_type, 0);
- if (!py_self_port_ptr) {
- BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component,
- "Failed to create a SWIG pointer object.");
- status = __BT_FUNC_STATUS_MEMORY_ERROR;
- goto end;
- }
-
- py_other_port_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(other_port),
- other_port_swig_type, 0);
- if (!py_other_port_ptr) {
- BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component,
- "Failed to create a SWIG pointer object.");
- status = __BT_FUNC_STATUS_MEMORY_ERROR;
- goto end; }
-
- py_method_result = PyObject_CallMethod(py_comp,
- "_bt_port_connected_from_native", "(OiO)", py_self_port_ptr,
- self_component_port_type, py_other_port_ptr);
- BT_ASSERT(!py_method_result || py_method_result == Py_None);
- status = py_exc_to_status_component(self_component);
-
-end:
- Py_XDECREF(py_self_port_ptr);
- Py_XDECREF(py_other_port_ptr);
- Py_XDECREF(py_method_result);
- return status;
-}
-
-static
-bt_component_class_port_connected_method_status
-component_class_source_output_port_connected(
- bt_self_component_source *self_component_source,
- bt_self_component_port_output *self_component_port_output,
- const bt_port_input *other_port_input)
-{
- bt_self_component *self_component = bt_self_component_source_as_self_component(self_component_source);
-
- return component_class_port_connected(
- self_component,
- self_component_port_output,
- SWIGTYPE_p_bt_self_component_port_output,
- BT_PORT_TYPE_OUTPUT,
- other_port_input,
- SWIGTYPE_p_bt_port_input);
-}
-
-static
-bt_component_class_port_connected_method_status
-component_class_filter_input_port_connected(
- bt_self_component_filter *self_component_filter,
- bt_self_component_port_input *self_component_port_input,
- const bt_port_output *other_port_output)
-{
- bt_self_component *self_component = bt_self_component_filter_as_self_component(self_component_filter);
-
- return component_class_port_connected(
- self_component,
- self_component_port_input,
- SWIGTYPE_p_bt_self_component_port_input,
- BT_PORT_TYPE_INPUT,
- other_port_output,
- SWIGTYPE_p_bt_port_output);
-}
-
-static
-bt_component_class_port_connected_method_status
-component_class_filter_output_port_connected(
- bt_self_component_filter *self_component_filter,
- bt_self_component_port_output *self_component_port_output,
- const bt_port_input *other_port_input)
-{
- bt_self_component *self_component = bt_self_component_filter_as_self_component(self_component_filter);
-
- return component_class_port_connected(
- self_component,
- self_component_port_output,
- SWIGTYPE_p_bt_self_component_port_output,
- BT_PORT_TYPE_OUTPUT,
- other_port_input,
- SWIGTYPE_p_bt_port_input);
-}
-
-static
-bt_component_class_port_connected_method_status
-component_class_sink_input_port_connected(
- bt_self_component_sink *self_component_sink,
- bt_self_component_port_input *self_component_port_input,
- const bt_port_output *other_port_output)
-{
- bt_self_component *self_component = bt_self_component_sink_as_self_component(self_component_sink);
-
- return component_class_port_connected(
- self_component,
- self_component_port_input,
- SWIGTYPE_p_bt_self_component_port_input,
- BT_PORT_TYPE_INPUT,
- other_port_output,
- SWIGTYPE_p_bt_port_output);
-}
-
-static
-bt_component_class_sink_graph_is_configured_method_status
-component_class_sink_graph_is_configured(
- bt_self_component_sink *self_component_sink)
-{
- PyObject *py_comp = NULL;
- PyObject *py_method_result = NULL;
- bt_component_class_sink_graph_is_configured_method_status status = __BT_FUNC_STATUS_OK;
- bt_self_component *self_component = bt_self_component_sink_as_self_component(self_component_sink);
-
- py_comp = bt_self_component_get_data(self_component);
- py_method_result = PyObject_CallMethod(py_comp,
- "_bt_graph_is_configured_from_native", NULL);
- BT_ASSERT(!py_method_result || py_method_result == Py_None);
- status = py_exc_to_status_component(self_component);
- Py_XDECREF(py_method_result);
- return status;
-}
-
-static
-bt_component_class_query_method_status component_class_query(
- const bt_component_class *component_class,
- bt_self_component_class *self_component_class,
- bt_private_query_executor *priv_query_executor,
- const char *object, const bt_value *params,
- const bt_value **result)
-{
- PyObject *py_cls = NULL;
- PyObject *py_params_ptr = NULL;
- PyObject *py_priv_query_exec_ptr = NULL;
- PyObject *py_query_func = NULL;
- PyObject *py_object = NULL;
- PyObject *py_results_addr = NULL;
- bt_component_class_query_method_status status = __BT_FUNC_STATUS_OK;
- const bt_query_executor *query_exec =
- bt_private_query_executor_as_query_executor_const(
- priv_query_executor);
- bt_logging_level log_level =
- bt_query_executor_get_logging_level(query_exec);
-
- py_cls = lookup_cc_ptr_to_py_cls(component_class);
- if (!py_cls) {
- BT_LOG_WRITE_CUR_LVL(BT_LOG_ERROR, log_level, BT_LOG_TAG,
- "Cannot find Python class associated to native component class: "
- "comp-cls-addr=%p", component_class);
- goto error;
- }
-
- py_params_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(params),
- SWIGTYPE_p_bt_value, 0);
- if (!py_params_ptr) {
- BT_LOG_WRITE_CUR_LVL(BT_LOG_ERROR, log_level, BT_LOG_TAG,
- "Failed to create a SWIG pointer object.");
- goto error;
- }
-
- py_priv_query_exec_ptr = SWIG_NewPointerObj(
- SWIG_as_voidptr(priv_query_executor),
- SWIGTYPE_p_bt_private_query_executor, 0);
- if (!py_priv_query_exec_ptr) {
- BT_LOG_WRITE_CUR_LVL(BT_LOG_ERROR, log_level, BT_LOG_TAG,
- "Failed to create a SWIG pointer object.");
- goto error;
- }
-
- py_object = SWIG_FromCharPtr(object);
- if (!py_object) {
- BT_LOG_WRITE_CUR_LVL(BT_LOG_ERROR, log_level, BT_LOG_TAG,
- "Failed to create a Python string.");
- goto error;
- }
-
- py_results_addr = PyObject_CallMethod(py_cls,
- "_bt_query_from_native", "(OOO)", py_priv_query_exec_ptr,
- py_object, py_params_ptr);
- if (!py_results_addr) {
- BT_LOG_WRITE_CUR_LVL(BT_LOG_WARNING, log_level, BT_LOG_TAG,
- "Failed to call Python class's _bt_query_from_native() method: "
- "py-cls-addr=%p", py_cls);
- status = py_exc_to_status_component_class(self_component_class,
- log_level);
- goto end;
- }
-
- /*
- * The returned object, on success, is an integer object
- * (PyLong) containing the address of a BT value object (new
- * reference).
- */
- *result = PyLong_AsVoidPtr(py_results_addr);
- BT_ASSERT(!PyErr_Occurred());
- BT_ASSERT(*result);
- goto end;
-
-error:
- PyErr_Clear();
- status = __BT_FUNC_STATUS_ERROR;
-
-end:
- Py_XDECREF(py_params_ptr);
- Py_XDECREF(py_priv_query_exec_ptr);
- Py_XDECREF(py_query_func);
- Py_XDECREF(py_object);
- Py_XDECREF(py_results_addr);
- return status;
-}
-
-static
-bt_component_class_query_method_status component_class_source_query(
- bt_self_component_class_source *self_component_class_source,
- bt_private_query_executor *priv_query_executor,
- const char *object, const bt_value *params,
- const bt_value **result)
-{
- const bt_component_class_source *component_class_source = bt_self_component_class_source_as_component_class_source(self_component_class_source);
- const bt_component_class *component_class = bt_component_class_source_as_component_class_const(component_class_source);
- bt_self_component_class *self_component_class = bt_self_component_class_source_as_self_component_class(self_component_class_source);
-
- return component_class_query(component_class, self_component_class,
- priv_query_executor, object, params, result);
-}
-
-static
-bt_component_class_query_method_status component_class_filter_query(
- bt_self_component_class_filter *self_component_class_filter,
- bt_private_query_executor *priv_query_executor,
- const char *object, const bt_value *params,
- const bt_value **result)
-{
- const bt_component_class_filter *component_class_filter = bt_self_component_class_filter_as_component_class_filter(self_component_class_filter);
- const bt_component_class *component_class = bt_component_class_filter_as_component_class_const(component_class_filter);
- bt_self_component_class *self_component_class = bt_self_component_class_filter_as_self_component_class(self_component_class_filter);
-
- return component_class_query(component_class, self_component_class,
- priv_query_executor, object, params, result);
-}
-
-static
-bt_component_class_query_method_status component_class_sink_query(
- bt_self_component_class_sink *self_component_class_sink,
- bt_private_query_executor *priv_query_executor,
- const char *object, const bt_value *params,
- const bt_value **result)
-{
- const bt_component_class_sink *component_class_sink = bt_self_component_class_sink_as_component_class_sink(self_component_class_sink);
- const bt_component_class *component_class = bt_component_class_sink_as_component_class_const(component_class_sink);
- bt_self_component_class *self_component_class = bt_self_component_class_sink_as_self_component_class(self_component_class_sink);
-
- return component_class_query(component_class, self_component_class,
- priv_query_executor, object, params, result);
-}
-
-static
-bt_component_class_message_iterator_init_method_status
-component_class_message_iterator_init(
- bt_self_message_iterator *self_message_iterator,
- bt_self_component *self_component,
- bt_self_component_port_output *self_component_port_output)
-{
- bt_component_class_message_iterator_init_method_status status = __BT_FUNC_STATUS_OK;
- PyObject *py_comp_cls = NULL;
- PyObject *py_iter_cls = NULL;
- PyObject *py_iter_ptr = NULL;
- PyObject *py_component_port_output_ptr = NULL;
- PyObject *py_init_method_result = NULL;
- PyObject *py_iter = NULL;
- PyObject *py_comp;
- bt_logging_level log_level = get_self_component_log_level(
- self_component);
-
- py_comp = bt_self_component_get_data(self_component);
-
- /* Find user's Python message iterator class */
- py_comp_cls = PyObject_GetAttrString(py_comp, "__class__");
- if (!py_comp_cls) {
- BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component,
- "Cannot get Python object's `__class__` attribute.");
- goto python_error;
- }
-
- py_iter_cls = PyObject_GetAttrString(py_comp_cls, "_iter_cls");
- if (!py_iter_cls) {
- BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component,
- "Cannot get Python class's `_iter_cls` attribute.");
- goto python_error;
- }
-
- py_iter_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(self_message_iterator),
- SWIGTYPE_p_bt_self_message_iterator, 0);
- if (!py_iter_ptr) {
- const char *err = "Failed to create a SWIG pointer object.";
-
- BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component,
- "%s", err);
- BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_MESSAGE_ITERATOR(
- self_message_iterator, err);
- goto error;
- }
-
- /*
- * Create object with borrowed native message iterator
- * reference:
- *
- * py_iter = py_iter_cls.__new__(py_iter_cls, py_iter_ptr)
- */
- py_iter = PyObject_CallMethod(py_iter_cls, "__new__",
- "(OO)", py_iter_cls, py_iter_ptr);
- if (!py_iter) {
- BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component,
- "Failed to call Python class's __new__() method: "
- "py-cls-addr=%p", py_iter_cls);
- goto python_error;
- }
-
- /*
- * Initialize object:
- *
- * py_iter.__init__(self_output_port)
- *
- * through the _init_for_native helper static method.
- *
- * At this point, py_iter._ptr is set, so this initialization
- * function has access to self._component (which gives it the
- * user Python component object from which the iterator was
- * created).
- */
- py_component_port_output_ptr = SWIG_NewPointerObj(
- SWIG_as_voidptr(self_component_port_output),
- SWIGTYPE_p_bt_self_component_port_output, 0);
- if (!py_component_port_output_ptr) {
- const char *err = "Failed to create a SWIG pointer object.";
-
- BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component,
- "%s", err);
- BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_MESSAGE_ITERATOR(
- self_message_iterator, err);
- goto error;
- }
-
- py_init_method_result = PyObject_CallMethod(py_iter,
- "_bt_init_from_native", "O", py_component_port_output_ptr);
- if (!py_init_method_result) {
- BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component,
- "User's __init__() method failed:");
- goto python_error;
- }
-
- /*
- * Since the Python code can never instantiate a user-defined
- * message iterator class, the native message iterator
- * object does NOT belong to a user Python message iterator
- * object (borrowed reference). However this Python object is
- * owned by this native message iterator object.
- *
- * In the Python world, the lifetime of the native message
- * iterator is managed by a _GenericMessageIterator
- * instance:
- *
- * _GenericMessageIterator instance:
- * owns a native bt_message_iterator object (iter)
- * owns a _UserMessageIterator instance (py_iter)
- * self._ptr is a borrowed reference to the
- * native bt_private_connection_private_message_iterator
- * object (iter)
- */
- bt_self_message_iterator_set_data(self_message_iterator, py_iter);
- py_iter = NULL;
- goto end;
-
-python_error:
- /* Handling of errors that cause a Python exception to be set. */
- status = py_exc_to_status_message_iterator(self_message_iterator);
- BT_ASSERT(status != __BT_FUNC_STATUS_OK);
- goto end;
-
-error:
- /* Handling of errors that don't cause a Python exception to be set. */
- status = __BT_FUNC_STATUS_ERROR;
-
-end:
- BT_ASSERT(!PyErr_Occurred());
-
- Py_XDECREF(py_comp_cls);
- Py_XDECREF(py_iter_cls);
- Py_XDECREF(py_iter_ptr);
- Py_XDECREF(py_component_port_output_ptr);
- Py_XDECREF(py_init_method_result);
- Py_XDECREF(py_iter);
- return status;
-}
-
-static
-bt_component_class_message_iterator_init_method_status
-component_class_source_message_iterator_init(
- bt_self_message_iterator *self_message_iterator,
- bt_self_component_source *self_component_source,
- bt_self_component_port_output *self_component_port_output)
-{
- bt_self_component *self_component = bt_self_component_source_as_self_component(self_component_source);
-
- return component_class_message_iterator_init(self_message_iterator, self_component, self_component_port_output);
-}
-
-static
-bt_component_class_message_iterator_init_method_status
-component_class_filter_message_iterator_init(
- bt_self_message_iterator *self_message_iterator,
- bt_self_component_filter *self_component_filter,
- bt_self_component_port_output *self_component_port_output)
-{
- bt_self_component *self_component = bt_self_component_filter_as_self_component(self_component_filter);
-
- return component_class_message_iterator_init(self_message_iterator, self_component, self_component_port_output);
-}
-
-static
-void component_class_message_iterator_finalize(
- bt_self_message_iterator *message_iterator)
-{
- PyObject *py_message_iter = bt_self_message_iterator_get_data(
- message_iterator);
- PyObject *py_method_result = NULL;
-
- BT_ASSERT(py_message_iter);
-
- /* Call user's _user_finalize() method */
- py_method_result = PyObject_CallMethod(py_message_iter,
- "_user_finalize", NULL);
-
- if (PyErr_Occurred()) {
- bt_self_component *self_comp =
- bt_self_message_iterator_borrow_component(
- message_iterator);
- bt_logging_level log_level = get_self_component_log_level(
- self_comp);
-
- BT_COMP_LOG_CUR_LVL(BT_LOG_WARNING, log_level, self_comp,
- "User's _user_finalize() method raised an exception: ignoring:");
- logw_exception(get_self_message_iterator_log_level(
- message_iterator));
- }
-
- /*
- * Ignore any exception raised by the _user_finalize() method
- * because it won't change anything at this point: the component
- * is being destroyed anyway.
- */
- PyErr_Clear();
- Py_XDECREF(py_method_result);
- Py_DECREF(py_message_iter);
-}
-
-/* Valid for both sources and filters. */
-
-static
-bt_component_class_message_iterator_next_method_status
-component_class_message_iterator_next(
- bt_self_message_iterator *message_iterator,
- bt_message_array_const msgs, uint64_t capacity,
- uint64_t *count)
-{
- bt_component_class_message_iterator_next_method_status status = __BT_FUNC_STATUS_OK;
- PyObject *py_message_iter = bt_self_message_iterator_get_data(message_iterator);
- PyObject *py_method_result = NULL;
-
- BT_ASSERT(py_message_iter);
- py_method_result = PyObject_CallMethod(py_message_iter,
- "_bt_next_from_native", NULL);
- if (!py_method_result) {
- status = py_exc_to_status_message_iterator(message_iterator);
- BT_ASSERT(status != __BT_FUNC_STATUS_OK);
- goto end;
- }
-
- /*
- * The returned object, on success, is an integer object
- * (PyLong) containing the address of a native message
- * object (which is now ours).
- */
- msgs[0] = PyLong_AsVoidPtr(py_method_result);
- *count = 1;
-
- /* Clear potential overflow error; should never happen */
- BT_ASSERT(!PyErr_Occurred());
- goto end;
-
-end:
- Py_XDECREF(py_method_result);
- return status;
-}
-
-static
-bt_component_class_sink_consume_method_status
-component_class_sink_consume(bt_self_component_sink *self_component_sink)
-{
- bt_self_component *self_component = bt_self_component_sink_as_self_component(self_component_sink);
- PyObject *py_comp = bt_self_component_get_data(self_component);
- PyObject *py_method_result = NULL;
- bt_component_class_sink_consume_method_status status;
-
- BT_ASSERT(py_comp);
- py_method_result = PyObject_CallMethod(py_comp,
- "_user_consume", NULL);
- status = py_exc_to_status_component(self_component);
- BT_ASSERT(py_method_result || status != __BT_FUNC_STATUS_OK);
- Py_XDECREF(py_method_result);
- return status;
-}
-
-static
-int component_class_set_help_and_desc(
- bt_component_class *component_class,
- const char *description, const char *help)
-{
- int ret;
-
- if (description) {
- ret = bt_component_class_set_description(component_class, description);
- if (ret) {
- BT_LOGE("Cannot set component class's description: "
- "comp-cls-addr=%p", component_class);
- goto end;
- }
- }
-
- if (help) {
- ret = bt_component_class_set_help(component_class, help);
- if (ret) {
- BT_LOGE("Cannot set component class's help text: "
- "comp-cls-addr=%p", component_class);
- goto end;
- }
- }
-
- ret = 0;
-
-end:
- return ret;
-}
-
-static
-bt_component_class_source *bt_bt2_component_class_source_create(
- PyObject *py_cls, const char *name, const char *description,
- const char *help)
-{
- bt_component_class_source *component_class_source;
- bt_component_class *component_class;
- int ret;
-
- BT_ASSERT(py_cls);
- component_class_source = bt_component_class_source_create(name,
- component_class_message_iterator_next);
- if (!component_class_source) {
- BT_LOGE_STR("Cannot create source component class.");
- goto end;
- }
-
- component_class = bt_component_class_source_as_component_class(component_class_source);
-
- if (component_class_set_help_and_desc(component_class, description, help)) {
- goto end;
- }
-
- ret = bt_component_class_source_set_init_method(component_class_source, component_class_source_init);
- BT_ASSERT(ret == 0);
- ret = bt_component_class_source_set_finalize_method(component_class_source, component_class_source_finalize);
- BT_ASSERT(ret == 0);
- ret = bt_component_class_source_set_message_iterator_can_seek_beginning_method(component_class_source,
- component_class_can_seek_beginning);
- BT_ASSERT(ret == 0);
- ret = bt_component_class_source_set_message_iterator_seek_beginning_method(component_class_source,
- component_class_seek_beginning);
- BT_ASSERT(ret == 0);
- ret = bt_component_class_source_set_output_port_connected_method(component_class_source,
- component_class_source_output_port_connected);
- BT_ASSERT(ret == 0);
- ret = bt_component_class_source_set_query_method(component_class_source, component_class_source_query);
- BT_ASSERT(ret == 0);
- ret = bt_component_class_source_set_message_iterator_init_method(
- component_class_source, component_class_source_message_iterator_init);
- BT_ASSERT(ret == 0);
- ret = bt_component_class_source_set_message_iterator_finalize_method(
- component_class_source, component_class_message_iterator_finalize);
- BT_ASSERT(ret == 0);
- register_cc_ptr_to_py_cls(component_class, py_cls);
-
-end:
- return component_class_source;
-}
-
-static
-bt_component_class_filter *bt_bt2_component_class_filter_create(
- PyObject *py_cls, const char *name, const char *description,
- const char *help)
-{
- bt_component_class *component_class;
- bt_component_class_filter *component_class_filter;
- int ret;
-
- BT_ASSERT(py_cls);
- component_class_filter = bt_component_class_filter_create(name,
- component_class_message_iterator_next);
- if (!component_class_filter) {
- BT_LOGE_STR("Cannot create filter component class.");
- goto end;
- }
-
- component_class = bt_component_class_filter_as_component_class(component_class_filter);
-
- if (component_class_set_help_and_desc(component_class, description, help)) {
- goto end;
- }
-
- ret = bt_component_class_filter_set_init_method(component_class_filter, component_class_filter_init);
- BT_ASSERT(ret == 0);
- ret = bt_component_class_filter_set_finalize_method (component_class_filter, component_class_filter_finalize);
- BT_ASSERT(ret == 0);
- ret = bt_component_class_filter_set_message_iterator_can_seek_beginning_method(component_class_filter,
- component_class_can_seek_beginning);
- BT_ASSERT(ret == 0);
- ret = bt_component_class_filter_set_message_iterator_seek_beginning_method(component_class_filter,
- component_class_seek_beginning);
- BT_ASSERT(ret == 0);
- ret = bt_component_class_filter_set_input_port_connected_method(component_class_filter,
- component_class_filter_input_port_connected);
- BT_ASSERT(ret == 0);
- ret = bt_component_class_filter_set_output_port_connected_method(component_class_filter,
- component_class_filter_output_port_connected);
- BT_ASSERT(ret == 0);
- ret = bt_component_class_filter_set_query_method(component_class_filter, component_class_filter_query);
- BT_ASSERT(ret == 0);
- ret = bt_component_class_filter_set_message_iterator_init_method(
- component_class_filter, component_class_filter_message_iterator_init);
- BT_ASSERT(ret == 0);
- ret = bt_component_class_filter_set_message_iterator_finalize_method(
- component_class_filter, component_class_message_iterator_finalize);
- BT_ASSERT(ret == 0);
- register_cc_ptr_to_py_cls(component_class, py_cls);
-
-end:
- return component_class_filter;
-}
-
-static
-bt_component_class_sink *bt_bt2_component_class_sink_create(
- PyObject *py_cls, const char *name, const char *description,
- const char *help)
-{
- bt_component_class_sink *component_class_sink;
- bt_component_class *component_class;
- int ret;
-
- BT_ASSERT(py_cls);
- component_class_sink = bt_component_class_sink_create(name, component_class_sink_consume);
-
- if (!component_class_sink) {
- BT_LOGE_STR("Cannot create sink component class.");
- goto end;
- }
-
- component_class = bt_component_class_sink_as_component_class(component_class_sink);
-
- if (component_class_set_help_and_desc(component_class, description, help)) {
- goto end;
- }
-
- ret = bt_component_class_sink_set_init_method(component_class_sink, component_class_sink_init);
- BT_ASSERT(ret == 0);
- ret = bt_component_class_sink_set_finalize_method(component_class_sink, component_class_sink_finalize);
- BT_ASSERT(ret == 0);
- ret = bt_component_class_sink_set_input_port_connected_method(component_class_sink,
- component_class_sink_input_port_connected);
- BT_ASSERT(ret == 0);
- ret = bt_component_class_sink_set_graph_is_configured_method(component_class_sink,
- component_class_sink_graph_is_configured);
- BT_ASSERT(ret == 0);
- ret = bt_component_class_sink_set_query_method(component_class_sink, component_class_sink_query);
- BT_ASSERT(ret == 0);
- register_cc_ptr_to_py_cls(component_class, py_cls);
-
-end:
- return component_class_sink;
-}
+#include "native_bt_component_class.i.h"
%}
struct bt_component_class_source *bt_bt2_component_class_source_create(
--- /dev/null
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "logging/comp-logging.h"
+
+/*
+ * This hash table associates a BT component class object address to a
+ * user-defined Python class (PyObject *). The keys and values are NOT
+ * owned by this hash table. The Python class objects are owned by the
+ * Python module, which should not be unloaded until it is not possible
+ * to create a user Python component anyway.
+ *
+ * This hash table is written to when a user-defined Python component
+ * class is created by one of the bt_bt2_component_class_*_create()
+ * functions.
+ *
+ * This function is read from when a user calls bt_component_create()
+ * with a component class pointer created by one of the functions above.
+ * In this case, the original Python class needs to be found to
+ * instantiate it and associate the created Python component object with
+ * a BT component object instance.
+ */
+
+static GHashTable *bt_cc_ptr_to_py_cls;
+
+static
+void register_cc_ptr_to_py_cls(struct bt_component_class *bt_cc,
+ PyObject *py_cls)
+{
+ if (!bt_cc_ptr_to_py_cls) {
+ /*
+ * Lazy-initializing this GHashTable because GLib
+ * might not be initialized yet and it needs to be
+ * before we call g_hash_table_new()
+ */
+ BT_LOGD_STR("Creating native component class to Python component class hash table.");
+ bt_cc_ptr_to_py_cls = g_hash_table_new(g_direct_hash, g_direct_equal);
+ BT_ASSERT(bt_cc_ptr_to_py_cls);
+ }
+
+ g_hash_table_insert(bt_cc_ptr_to_py_cls, (gpointer) bt_cc,
+ (gpointer) py_cls);
+}
+
+static
+PyObject *lookup_cc_ptr_to_py_cls(const bt_component_class *bt_cc)
+{
+ if (!bt_cc_ptr_to_py_cls) {
+ BT_LOGW("Cannot look up Python component class because hash table is NULL: "
+ "comp-cls-addr=%p", bt_cc);
+ return NULL;
+ }
+
+ return (PyObject *) g_hash_table_lookup(bt_cc_ptr_to_py_cls,
+ (gconstpointer) bt_cc);
+}
+
+
+/*
+ * Useful Python objects.
+ */
+
+static PyObject *py_mod_bt2 = NULL;
+static PyObject *py_mod_bt2_exc_error_type = NULL;
+static PyObject *py_mod_bt2_exc_memory_error = NULL;
+static PyObject *py_mod_bt2_exc_try_again_type = NULL;
+static PyObject *py_mod_bt2_exc_stop_type = NULL;
+static PyObject *py_mod_bt2_exc_unknown_object_type = NULL;
+
+static
+void bt_bt2_cc_init_from_bt2(void)
+{
+ /*
+ * This is called once the bt2 package is loaded.
+ *
+ * Those modules and functions are needed while the package is
+ * used. Loading them here is safe because we know the bt2
+ * package is imported, and we know that the user cannot use the
+ * code here without importing bt2 first.
+ */
+ py_mod_bt2 = PyImport_ImportModule("bt2");
+ BT_ASSERT(py_mod_bt2);
+ py_mod_bt2_exc_error_type =
+ PyObject_GetAttrString(py_mod_bt2, "_Error");
+ BT_ASSERT(py_mod_bt2_exc_error_type);
+ py_mod_bt2_exc_memory_error =
+ PyObject_GetAttrString(py_mod_bt2, "_MemoryError");
+ BT_ASSERT(py_mod_bt2_exc_memory_error);
+ py_mod_bt2_exc_try_again_type =
+ PyObject_GetAttrString(py_mod_bt2, "TryAgain");
+ BT_ASSERT(py_mod_bt2_exc_try_again_type);
+ py_mod_bt2_exc_stop_type =
+ PyObject_GetAttrString(py_mod_bt2, "Stop");
+ BT_ASSERT(py_mod_bt2_exc_stop_type);
+ py_mod_bt2_exc_unknown_object_type =
+ PyObject_GetAttrString(py_mod_bt2, "UnknownObject");
+ BT_ASSERT(py_mod_bt2_exc_unknown_object_type);
+}
+
+static
+void bt_bt2_cc_exit_handler(void)
+{
+ /*
+ * This is an exit handler (set by the bt2 package).
+ *
+ * We only give back the references that we took in
+ * bt_bt2_cc_init_from_bt2() here. The global variables continue
+ * to exist for the code of this file, but they are now borrowed
+ * references. If this code is executed, it means that somehow
+ * the modules are still loaded, so it should be safe to use
+ * them even without a strong reference.
+ *
+ * We cannot do this in the library's destructor because it
+ * gets executed once Python is already finalized.
+ */
+ Py_XDECREF(py_mod_bt2);
+ Py_XDECREF(py_mod_bt2_exc_error_type);
+ Py_XDECREF(py_mod_bt2_exc_try_again_type);
+ Py_XDECREF(py_mod_bt2_exc_stop_type);
+ Py_XDECREF(py_mod_bt2_exc_unknown_object_type);
+}
+
+
+/* Library destructor */
+
+__attribute__((destructor))
+static
+void native_comp_class_dtor(void) {
+ /* Destroy component class association hash table */
+ if (bt_cc_ptr_to_py_cls) {
+ BT_LOGD_STR("Destroying native component class to Python component class hash table.");
+ g_hash_table_destroy(bt_cc_ptr_to_py_cls);
+ }
+}
+
+static
+void restore_current_thread_error_and_append_exception_chain_recursive(
+ int active_log_level, PyObject *py_exc_value,
+ bt_self_component_class *self_component_class,
+ bt_self_component *self_component,
+ bt_self_message_iterator *self_message_iterator,
+ const char *module_name)
+{
+ PyObject *py_exc_cause_value;
+ PyObject *py_exc_type = NULL;
+ PyObject *py_exc_tb = NULL;
+ GString *gstr = NULL;
+
+ /* If this exception has a cause, handle that one first. */
+ py_exc_cause_value = PyException_GetCause(py_exc_value);
+ if (py_exc_cause_value) {
+ restore_current_thread_error_and_append_exception_chain_recursive(
+ active_log_level, py_exc_cause_value,
+ self_component_class, self_component,
+ self_message_iterator, module_name);
+ }
+
+ /*
+ * If the raised exception is a bt2._Error, restore the wrapped error.
+ */
+ if (PyErr_GivenExceptionMatches(py_exc_value, py_mod_bt2_exc_error_type)) {
+ PyObject *py_error_swig_ptr;
+ const bt_error *error;
+ int ret;
+
+ /*
+ * We never raise a bt2._Error with a cause: it should be the
+ * end of the chain.
+ */
+ BT_ASSERT(!py_exc_cause_value);
+
+ /*
+ * We steal the error object from the exception, to move
+ * it back as the current thread's error.
+ */
+ py_error_swig_ptr = PyObject_GetAttrString(py_exc_value, "_ptr");
+ BT_ASSERT(py_error_swig_ptr);
+
+ ret = PyObject_SetAttrString(py_exc_value, "_ptr", Py_None);
+ BT_ASSERT(ret == 0);
+
+ ret = SWIG_ConvertPtr(py_error_swig_ptr, (void **) &error,
+ SWIGTYPE_p_bt_error, 0);
+ BT_ASSERT(ret == 0);
+
+ BT_CURRENT_THREAD_MOVE_ERROR_AND_RESET(error);
+
+ Py_DECREF(py_error_swig_ptr);
+ }
+
+ py_exc_type = PyObject_Type(py_exc_value);
+ py_exc_tb = PyException_GetTraceback(py_exc_value);
+
+ gstr = bt_py_common_format_exception(py_exc_type, py_exc_value,
+ py_exc_tb, active_log_level, false);
+ if (!gstr) {
+ /* bt_py_common_format_exception has already warned. */
+ goto end;
+ }
+
+ if (self_component_class) {
+ BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_COMPONENT_CLASS(
+ self_component_class, "%s", gstr->str);
+ } else if (self_component) {
+ BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_COMPONENT(
+ self_component, "%s", gstr->str);
+ } else if (self_message_iterator) {
+ BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_MESSAGE_ITERATOR(
+ self_message_iterator, "%s", gstr->str);
+ } else {
+ BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(
+ module_name, "%s", gstr->str);
+ }
+
+end:
+ if (gstr) {
+ g_string_free(gstr, TRUE);
+ }
+
+ Py_XDECREF(py_exc_cause_value);
+ Py_XDECREF(py_exc_type);
+ Py_XDECREF(py_exc_tb);
+}
+
+/*
+ * If you have the following code:
+ *
+ * try:
+ * try:
+ * something_that_raises_bt2_error()
+ * except bt2._Error as e1:
+ * raise ValueError from e1
+ * except ValueError as e2:
+ * raise TypeError from e2
+ *
+ * We will have the following exception chain:
+ *
+ * TypeError -> ValueError -> bt2._Error
+ *
+ * Where the TypeError is the current exception (obtained from PyErr_Fetch).
+ *
+ * The bt2._Error contains a `struct bt_error *` that used to be the current
+ * thread's error, at the moment the exception was raised.
+ *
+ * This function gets to the bt2._Error and restores the wrapped
+ * `struct bt_error *` as the current thread's error.
+ *
+ * Then, for each exception in the chain, starting with the oldest one, it adds
+ * an error cause to the current thread's error.
+ */
+static
+void restore_bt_error_and_append_current_exception_chain(
+ int active_log_level,
+ bt_self_component_class *self_component_class,
+ bt_self_component *self_component,
+ bt_self_message_iterator *self_message_iterator,
+ const char *module_name)
+{
+ BT_ASSERT(PyErr_Occurred());
+
+ /* Used to access and restore the current exception. */
+ PyObject *py_exc_type;
+ PyObject *py_exc_value;
+ PyObject *py_exc_tb;
+
+ /* Fetch and normalize the Python exception. */
+ PyErr_Fetch(&py_exc_type, &py_exc_value, &py_exc_tb);
+ PyErr_NormalizeException(&py_exc_type, &py_exc_value, &py_exc_tb);
+ BT_ASSERT(py_exc_type);
+ BT_ASSERT(py_exc_value);
+ BT_ASSERT(py_exc_tb);
+
+ /*
+ * Set the exception's traceback so it's possible to get it using
+ * PyException_GetTraceback in
+ * restore_current_thread_error_and_append_exception_chain_recursive.
+ */
+ PyException_SetTraceback(py_exc_value, py_exc_tb);
+
+ restore_current_thread_error_and_append_exception_chain_recursive(
+ active_log_level, py_exc_value, self_component_class,
+ self_component, self_message_iterator, module_name);
+
+ PyErr_Restore(py_exc_type, py_exc_value, py_exc_tb);
+}
+
+static inline
+void log_exception_and_maybe_append_error(int func_log_level,
+ int active_log_level, bool append_error,
+ bt_self_component_class *self_component_class,
+ bt_self_component *self_component,
+ bt_self_message_iterator *self_message_iterator,
+ const char *module_name)
+{
+ GString *gstr;
+
+ BT_ASSERT(PyErr_Occurred());
+ gstr = bt_py_common_format_current_exception(active_log_level);
+ if (!gstr) {
+ /* bt_py_common_format_current_exception() logs errors */
+ goto end;
+ }
+
+ BT_COMP_LOG_CUR_LVL(func_log_level, active_log_level, self_component,
+ "%s", gstr->str);
+
+ if (append_error) {
+ restore_bt_error_and_append_current_exception_chain(
+ active_log_level, self_component_class, self_component,
+ self_message_iterator, module_name);
+
+ }
+
+end:
+ if (gstr) {
+ g_string_free(gstr, TRUE);
+ }
+}
+
+static
+bt_logging_level get_self_component_log_level(bt_self_component *self_comp)
+{
+ return bt_component_get_logging_level(
+ bt_self_component_as_component(self_comp));
+}
+
+static
+bt_logging_level get_self_message_iterator_log_level(
+ bt_self_message_iterator *self_msg_iter)
+{
+ bt_self_component *self_comp =
+ bt_self_message_iterator_borrow_component(self_msg_iter);
+
+ return get_self_component_log_level(self_comp);
+}
+
+static inline
+void loge_exception(const char *module_name, int active_log_level)
+{
+ log_exception_and_maybe_append_error(BT_LOG_ERROR, active_log_level,
+ true, NULL, NULL, NULL, module_name);
+}
+
+static
+void loge_exception_message_iterator(
+ bt_self_message_iterator *self_message_iterator)
+{
+ bt_logging_level log_level = get_self_message_iterator_log_level(
+ self_message_iterator);
+
+ log_exception_and_maybe_append_error(BT_LOG_ERROR, log_level,
+ true, NULL, NULL, self_message_iterator, NULL);
+}
+
+static inline
+void logw_exception(int active_log_level)
+{
+ log_exception_and_maybe_append_error(BT_LOG_WARNING, active_log_level,
+ false, NULL, NULL, NULL, NULL);
+}
+
+static inline
+int py_exc_to_status(bt_self_component_class *self_component_class,
+ bt_self_component *self_component,
+ bt_self_message_iterator *self_message_iterator,
+ const char *module_name, int active_log_level)
+{
+ int status = __BT_FUNC_STATUS_OK;
+ PyObject *exc = PyErr_Occurred();
+
+ if (!exc) {
+ goto end;
+ }
+
+ if (PyErr_GivenExceptionMatches(exc,
+ py_mod_bt2_exc_try_again_type)) {
+ status = __BT_FUNC_STATUS_AGAIN;
+ } else if (PyErr_GivenExceptionMatches(exc,
+ py_mod_bt2_exc_stop_type)) {
+ status = __BT_FUNC_STATUS_END;
+ } else if (PyErr_GivenExceptionMatches(exc,
+ py_mod_bt2_exc_unknown_object_type)) {
+ status = __BT_FUNC_STATUS_UNKNOWN_OBJECT;
+ } else {
+ /*
+ * Unknown exception: convert to general error.
+ *
+ * Because we only want to fetch the log level when
+ * we actually get an exception, and not systematically
+ * when we call py_exc_to_status() (as py_exc_to_status()
+ * can return `__BT_FUNC_STATUS_OK`), we get it here
+ * depending on the actor's type.
+ */
+ if (self_component) {
+ active_log_level = get_self_component_log_level(
+ self_component);
+ } else if (self_message_iterator) {
+ active_log_level = get_self_message_iterator_log_level(
+ self_message_iterator);
+ }
+
+ BT_ASSERT(active_log_level != -1);
+ log_exception_and_maybe_append_error(BT_LOG_WARNING,
+ active_log_level, true,
+ self_component_class, self_component,
+ self_message_iterator, module_name);
+
+ if (PyErr_GivenExceptionMatches(exc,
+ py_mod_bt2_exc_memory_error)) {
+ status = __BT_FUNC_STATUS_MEMORY_ERROR;
+ } else {
+ status = __BT_FUNC_STATUS_ERROR;
+ }
+ }
+
+end:
+ PyErr_Clear();
+ return status;
+}
+
+static
+int py_exc_to_status_component_class(
+ bt_self_component_class *self_component_class,
+ int active_log_level)
+{
+ return py_exc_to_status(self_component_class, NULL, NULL, NULL,
+ active_log_level);
+}
+
+static
+int py_exc_to_status_component(bt_self_component *self_component)
+{
+ return py_exc_to_status(NULL, self_component, NULL, NULL, -1);
+}
+
+static
+int py_exc_to_status_message_iterator(
+ bt_self_message_iterator *self_message_iterator)
+{
+ return py_exc_to_status(NULL, NULL, self_message_iterator, NULL, -1);
+}
+
+/* Component class proxy methods (delegate to the attached Python object) */
+
+static
+bt_component_class_init_method_status component_class_init(
+ bt_self_component *self_component,
+ void *self_component_v,
+ swig_type_info *self_comp_cls_type_swig_type,
+ const bt_value *params,
+ void *init_method_data)
+{
+ const bt_component *component = bt_self_component_as_component(self_component);
+ const bt_component_class *component_class = bt_component_borrow_class_const(component);
+ bt_component_class_init_method_status status = __BT_FUNC_STATUS_OK;
+ PyObject *py_cls = NULL;
+ PyObject *py_comp = NULL;
+ PyObject *py_params_ptr = NULL;
+ PyObject *py_comp_ptr = NULL;
+ bt_logging_level log_level = get_self_component_log_level(
+ self_component);
+
+ (void) init_method_data;
+
+ BT_ASSERT(self_component);
+ BT_ASSERT(self_component_v);
+ BT_ASSERT(self_comp_cls_type_swig_type);
+
+ /*
+ * Get the user-defined Python class which created this
+ * component's class in the first place (borrowed
+ * reference).
+ */
+ py_cls = lookup_cc_ptr_to_py_cls(component_class);
+ if (!py_cls) {
+ BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component,
+ "Cannot find Python class associated to native component class: "
+ "comp-cls-addr=%p", component_class);
+ goto error;
+ }
+
+ /* Parameters pointer -> SWIG pointer Python object */
+ py_params_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(params),
+ SWIGTYPE_p_bt_value, 0);
+ if (!py_params_ptr) {
+ BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component,
+ "Failed to create a SWIG pointer object.");
+ goto error;
+ }
+
+ py_comp_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(self_component_v),
+ self_comp_cls_type_swig_type, 0);
+ if (!py_comp_ptr) {
+ BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component,
+ "Failed to create a SWIG pointer object.");
+ goto error;
+ }
+
+ /*
+ * Do the equivalent of this:
+ *
+ * py_comp = py_cls._bt_init_from_native(py_comp_ptr, py_params_ptr)
+ *
+ * _UserComponentType._bt_init_from_native() calls the Python
+ * component object's __init__() function.
+ */
+ py_comp = PyObject_CallMethod(py_cls,
+ "_bt_init_from_native", "(OO)", py_comp_ptr, py_params_ptr);
+ if (!py_comp) {
+ BT_COMP_LOG_CUR_LVL(BT_LOG_WARNING, log_level, self_component,
+ "Failed to call Python class's _bt_init_from_native() method: "
+ "py-cls-addr=%p", py_cls);
+ status = py_exc_to_status_component(self_component);
+ goto end;
+ }
+
+ /*
+ * Our user Python component object is now fully created and
+ * initialized by the user. Since we just created it, this
+ * native component is its only (persistent) owner.
+ */
+ bt_self_component_set_data(self_component, py_comp);
+ py_comp = NULL;
+ goto end;
+
+error:
+ status = __BT_FUNC_STATUS_ERROR;
+
+ /*
+ * Clear any exception: we're returning a bad status anyway. If
+ * this call originated from Python (creation from a plugin's
+ * component class, for example), then the user gets an
+ * appropriate creation error.
+ */
+ PyErr_Clear();
+
+end:
+ Py_XDECREF(py_comp);
+ Py_XDECREF(py_params_ptr);
+ Py_XDECREF(py_comp_ptr);
+ return status;
+}
+
+/*
+ * Method of bt_component_class_source to initialize a bt_self_component_source
+ * of that class.
+ */
+
+static
+bt_component_class_init_method_status component_class_source_init(
+ bt_self_component_source *self_component_source,
+ const bt_value *params, void *init_method_data)
+{
+ bt_self_component *self_component = bt_self_component_source_as_self_component(self_component_source);
+ return component_class_init(
+ self_component,
+ self_component_source,
+ SWIGTYPE_p_bt_self_component_source,
+ params, init_method_data);
+}
+
+static
+bt_component_class_init_method_status component_class_filter_init(
+ bt_self_component_filter *self_component_filter,
+ const bt_value *params, void *init_method_data)
+{
+ bt_self_component *self_component = bt_self_component_filter_as_self_component(self_component_filter);
+ return component_class_init(
+ self_component,
+ self_component_filter,
+ SWIGTYPE_p_bt_self_component_filter,
+ params, init_method_data);
+}
+
+static
+bt_component_class_init_method_status component_class_sink_init(
+ bt_self_component_sink *self_component_sink,
+ const bt_value *params, void *init_method_data)
+{
+ bt_self_component *self_component = bt_self_component_sink_as_self_component(self_component_sink);
+ return component_class_init(
+ self_component,
+ self_component_sink,
+ SWIGTYPE_p_bt_self_component_sink,
+ params, init_method_data);
+}
+
+static
+void component_class_finalize(bt_self_component *self_component)
+{
+ PyObject *py_comp = bt_self_component_get_data(self_component);
+ BT_ASSERT(py_comp);
+
+ /* Call user's _user_finalize() method */
+ PyObject *py_method_result = PyObject_CallMethod(py_comp,
+ "_user_finalize", NULL);
+
+ if (PyErr_Occurred()) {
+ bt_logging_level log_level = get_self_component_log_level(
+ self_component);
+
+ BT_COMP_LOG_CUR_LVL(BT_LOG_WARNING, log_level, self_component,
+ "User component's _user_finalize() method raised an exception: ignoring:");
+ logw_exception(log_level);
+ }
+
+ /*
+ * Ignore any exception raised by the _user_finalize() method
+ * because it won't change anything at this point: the component
+ * is being destroyed anyway.
+ */
+ PyErr_Clear();
+ Py_XDECREF(py_method_result);
+ Py_DECREF(py_comp);
+}
+
+static
+void component_class_source_finalize(bt_self_component_source *self_component_source)
+{
+ bt_self_component *self_component = bt_self_component_source_as_self_component(self_component_source);
+ component_class_finalize(self_component);
+}
+
+static
+void component_class_filter_finalize(bt_self_component_filter *self_component_filter)
+{
+ bt_self_component *self_component = bt_self_component_filter_as_self_component(self_component_filter);
+ component_class_finalize(self_component);
+}
+
+static
+void component_class_sink_finalize(bt_self_component_sink *self_component_sink)
+{
+ bt_self_component *self_component = bt_self_component_sink_as_self_component(self_component_sink);
+ component_class_finalize(self_component);
+}
+
+static
+bt_bool component_class_can_seek_beginning(
+ bt_self_message_iterator *self_message_iterator)
+{
+ PyObject *py_iter;
+ PyObject *py_result = NULL;
+ bt_bool can_seek_beginning = false;
+
+ py_iter = bt_self_message_iterator_get_data(self_message_iterator);
+ BT_ASSERT(py_iter);
+
+ py_result = PyObject_GetAttrString(py_iter, "_bt_can_seek_beginning_from_native");
+
+ BT_ASSERT(!py_result || PyBool_Check(py_result));
+
+ if (py_result) {
+ can_seek_beginning = PyObject_IsTrue(py_result);
+ } else {
+ /*
+ * Once can_seek_beginning can report errors, convert the
+ * exception to a status. For now, log and return false;
+ */
+ loge_exception_message_iterator(self_message_iterator);
+ PyErr_Clear();
+ }
+
+ Py_XDECREF(py_result);
+
+ return can_seek_beginning;
+}
+
+static
+bt_component_class_message_iterator_seek_beginning_method_status
+component_class_seek_beginning(bt_self_message_iterator *self_message_iterator)
+{
+ PyObject *py_iter;
+ PyObject *py_result;
+ bt_component_class_message_iterator_seek_beginning_method_status status;
+
+ py_iter = bt_self_message_iterator_get_data(self_message_iterator);
+ BT_ASSERT(py_iter);
+ py_result = PyObject_CallMethod(py_iter, "_bt_seek_beginning_from_native",
+ NULL);
+ BT_ASSERT(!py_result || py_result == Py_None);
+ status = py_exc_to_status_message_iterator(self_message_iterator);
+ Py_XDECREF(py_result);
+ return status;
+}
+
+static
+bt_component_class_port_connected_method_status component_class_port_connected(
+ bt_self_component *self_component,
+ void *self_component_port,
+ swig_type_info *self_component_port_swig_type,
+ bt_port_type self_component_port_type,
+ const void *other_port,
+ swig_type_info *other_port_swig_type)
+{
+ bt_component_class_port_connected_method_status status;
+ PyObject *py_comp = NULL;
+ PyObject *py_self_port_ptr = NULL;
+ PyObject *py_other_port_ptr = NULL;
+ PyObject *py_method_result = NULL;
+ bt_logging_level log_level = get_self_component_log_level(
+ self_component);
+
+ py_comp = bt_self_component_get_data(self_component);
+ BT_ASSERT(py_comp);
+ py_self_port_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(self_component_port),
+ self_component_port_swig_type, 0);
+ if (!py_self_port_ptr) {
+ BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component,
+ "Failed to create a SWIG pointer object.");
+ status = __BT_FUNC_STATUS_MEMORY_ERROR;
+ goto end;
+ }
+
+ py_other_port_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(other_port),
+ other_port_swig_type, 0);
+ if (!py_other_port_ptr) {
+ BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component,
+ "Failed to create a SWIG pointer object.");
+ status = __BT_FUNC_STATUS_MEMORY_ERROR;
+ goto end; }
+
+ py_method_result = PyObject_CallMethod(py_comp,
+ "_bt_port_connected_from_native", "(OiO)", py_self_port_ptr,
+ self_component_port_type, py_other_port_ptr);
+ BT_ASSERT(!py_method_result || py_method_result == Py_None);
+ status = py_exc_to_status_component(self_component);
+
+end:
+ Py_XDECREF(py_self_port_ptr);
+ Py_XDECREF(py_other_port_ptr);
+ Py_XDECREF(py_method_result);
+ return status;
+}
+
+static
+bt_component_class_port_connected_method_status
+component_class_source_output_port_connected(
+ bt_self_component_source *self_component_source,
+ bt_self_component_port_output *self_component_port_output,
+ const bt_port_input *other_port_input)
+{
+ bt_self_component *self_component = bt_self_component_source_as_self_component(self_component_source);
+
+ return component_class_port_connected(
+ self_component,
+ self_component_port_output,
+ SWIGTYPE_p_bt_self_component_port_output,
+ BT_PORT_TYPE_OUTPUT,
+ other_port_input,
+ SWIGTYPE_p_bt_port_input);
+}
+
+static
+bt_component_class_port_connected_method_status
+component_class_filter_input_port_connected(
+ bt_self_component_filter *self_component_filter,
+ bt_self_component_port_input *self_component_port_input,
+ const bt_port_output *other_port_output)
+{
+ bt_self_component *self_component = bt_self_component_filter_as_self_component(self_component_filter);
+
+ return component_class_port_connected(
+ self_component,
+ self_component_port_input,
+ SWIGTYPE_p_bt_self_component_port_input,
+ BT_PORT_TYPE_INPUT,
+ other_port_output,
+ SWIGTYPE_p_bt_port_output);
+}
+
+static
+bt_component_class_port_connected_method_status
+component_class_filter_output_port_connected(
+ bt_self_component_filter *self_component_filter,
+ bt_self_component_port_output *self_component_port_output,
+ const bt_port_input *other_port_input)
+{
+ bt_self_component *self_component = bt_self_component_filter_as_self_component(self_component_filter);
+
+ return component_class_port_connected(
+ self_component,
+ self_component_port_output,
+ SWIGTYPE_p_bt_self_component_port_output,
+ BT_PORT_TYPE_OUTPUT,
+ other_port_input,
+ SWIGTYPE_p_bt_port_input);
+}
+
+static
+bt_component_class_port_connected_method_status
+component_class_sink_input_port_connected(
+ bt_self_component_sink *self_component_sink,
+ bt_self_component_port_input *self_component_port_input,
+ const bt_port_output *other_port_output)
+{
+ bt_self_component *self_component = bt_self_component_sink_as_self_component(self_component_sink);
+
+ return component_class_port_connected(
+ self_component,
+ self_component_port_input,
+ SWIGTYPE_p_bt_self_component_port_input,
+ BT_PORT_TYPE_INPUT,
+ other_port_output,
+ SWIGTYPE_p_bt_port_output);
+}
+
+static
+bt_component_class_sink_graph_is_configured_method_status
+component_class_sink_graph_is_configured(
+ bt_self_component_sink *self_component_sink)
+{
+ PyObject *py_comp = NULL;
+ PyObject *py_method_result = NULL;
+ bt_component_class_sink_graph_is_configured_method_status status = __BT_FUNC_STATUS_OK;
+ bt_self_component *self_component = bt_self_component_sink_as_self_component(self_component_sink);
+
+ py_comp = bt_self_component_get_data(self_component);
+ py_method_result = PyObject_CallMethod(py_comp,
+ "_bt_graph_is_configured_from_native", NULL);
+ BT_ASSERT(!py_method_result || py_method_result == Py_None);
+ status = py_exc_to_status_component(self_component);
+ Py_XDECREF(py_method_result);
+ return status;
+}
+
+static
+bt_component_class_query_method_status component_class_query(
+ const bt_component_class *component_class,
+ bt_self_component_class *self_component_class,
+ bt_private_query_executor *priv_query_executor,
+ const char *object, const bt_value *params,
+ const bt_value **result)
+{
+ PyObject *py_cls = NULL;
+ PyObject *py_params_ptr = NULL;
+ PyObject *py_priv_query_exec_ptr = NULL;
+ PyObject *py_query_func = NULL;
+ PyObject *py_object = NULL;
+ PyObject *py_results_addr = NULL;
+ bt_component_class_query_method_status status = __BT_FUNC_STATUS_OK;
+ const bt_query_executor *query_exec =
+ bt_private_query_executor_as_query_executor_const(
+ priv_query_executor);
+ bt_logging_level log_level =
+ bt_query_executor_get_logging_level(query_exec);
+
+ py_cls = lookup_cc_ptr_to_py_cls(component_class);
+ if (!py_cls) {
+ BT_LOG_WRITE_CUR_LVL(BT_LOG_ERROR, log_level, BT_LOG_TAG,
+ "Cannot find Python class associated to native component class: "
+ "comp-cls-addr=%p", component_class);
+ goto error;
+ }
+
+ py_params_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(params),
+ SWIGTYPE_p_bt_value, 0);
+ if (!py_params_ptr) {
+ BT_LOG_WRITE_CUR_LVL(BT_LOG_ERROR, log_level, BT_LOG_TAG,
+ "Failed to create a SWIG pointer object.");
+ goto error;
+ }
+
+ py_priv_query_exec_ptr = SWIG_NewPointerObj(
+ SWIG_as_voidptr(priv_query_executor),
+ SWIGTYPE_p_bt_private_query_executor, 0);
+ if (!py_priv_query_exec_ptr) {
+ BT_LOG_WRITE_CUR_LVL(BT_LOG_ERROR, log_level, BT_LOG_TAG,
+ "Failed to create a SWIG pointer object.");
+ goto error;
+ }
+
+ py_object = SWIG_FromCharPtr(object);
+ if (!py_object) {
+ BT_LOG_WRITE_CUR_LVL(BT_LOG_ERROR, log_level, BT_LOG_TAG,
+ "Failed to create a Python string.");
+ goto error;
+ }
+
+ py_results_addr = PyObject_CallMethod(py_cls,
+ "_bt_query_from_native", "(OOO)", py_priv_query_exec_ptr,
+ py_object, py_params_ptr);
+ if (!py_results_addr) {
+ BT_LOG_WRITE_CUR_LVL(BT_LOG_WARNING, log_level, BT_LOG_TAG,
+ "Failed to call Python class's _bt_query_from_native() method: "
+ "py-cls-addr=%p", py_cls);
+ status = py_exc_to_status_component_class(self_component_class,
+ log_level);
+ goto end;
+ }
+
+ /*
+ * The returned object, on success, is an integer object
+ * (PyLong) containing the address of a BT value object (new
+ * reference).
+ */
+ *result = PyLong_AsVoidPtr(py_results_addr);
+ BT_ASSERT(!PyErr_Occurred());
+ BT_ASSERT(*result);
+ goto end;
+
+error:
+ PyErr_Clear();
+ status = __BT_FUNC_STATUS_ERROR;
+
+end:
+ Py_XDECREF(py_params_ptr);
+ Py_XDECREF(py_priv_query_exec_ptr);
+ Py_XDECREF(py_query_func);
+ Py_XDECREF(py_object);
+ Py_XDECREF(py_results_addr);
+ return status;
+}
+
+static
+bt_component_class_query_method_status component_class_source_query(
+ bt_self_component_class_source *self_component_class_source,
+ bt_private_query_executor *priv_query_executor,
+ const char *object, const bt_value *params,
+ const bt_value **result)
+{
+ const bt_component_class_source *component_class_source = bt_self_component_class_source_as_component_class_source(self_component_class_source);
+ const bt_component_class *component_class = bt_component_class_source_as_component_class_const(component_class_source);
+ bt_self_component_class *self_component_class = bt_self_component_class_source_as_self_component_class(self_component_class_source);
+
+ return component_class_query(component_class, self_component_class,
+ priv_query_executor, object, params, result);
+}
+
+static
+bt_component_class_query_method_status component_class_filter_query(
+ bt_self_component_class_filter *self_component_class_filter,
+ bt_private_query_executor *priv_query_executor,
+ const char *object, const bt_value *params,
+ const bt_value **result)
+{
+ const bt_component_class_filter *component_class_filter = bt_self_component_class_filter_as_component_class_filter(self_component_class_filter);
+ const bt_component_class *component_class = bt_component_class_filter_as_component_class_const(component_class_filter);
+ bt_self_component_class *self_component_class = bt_self_component_class_filter_as_self_component_class(self_component_class_filter);
+
+ return component_class_query(component_class, self_component_class,
+ priv_query_executor, object, params, result);
+}
+
+static
+bt_component_class_query_method_status component_class_sink_query(
+ bt_self_component_class_sink *self_component_class_sink,
+ bt_private_query_executor *priv_query_executor,
+ const char *object, const bt_value *params,
+ const bt_value **result)
+{
+ const bt_component_class_sink *component_class_sink = bt_self_component_class_sink_as_component_class_sink(self_component_class_sink);
+ const bt_component_class *component_class = bt_component_class_sink_as_component_class_const(component_class_sink);
+ bt_self_component_class *self_component_class = bt_self_component_class_sink_as_self_component_class(self_component_class_sink);
+
+ return component_class_query(component_class, self_component_class,
+ priv_query_executor, object, params, result);
+}
+
+static
+bt_component_class_message_iterator_init_method_status
+component_class_message_iterator_init(
+ bt_self_message_iterator *self_message_iterator,
+ bt_self_component *self_component,
+ bt_self_component_port_output *self_component_port_output)
+{
+ bt_component_class_message_iterator_init_method_status status = __BT_FUNC_STATUS_OK;
+ PyObject *py_comp_cls = NULL;
+ PyObject *py_iter_cls = NULL;
+ PyObject *py_iter_ptr = NULL;
+ PyObject *py_component_port_output_ptr = NULL;
+ PyObject *py_init_method_result = NULL;
+ PyObject *py_iter = NULL;
+ PyObject *py_comp;
+ bt_logging_level log_level = get_self_component_log_level(
+ self_component);
+
+ py_comp = bt_self_component_get_data(self_component);
+
+ /* Find user's Python message iterator class */
+ py_comp_cls = PyObject_GetAttrString(py_comp, "__class__");
+ if (!py_comp_cls) {
+ BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component,
+ "Cannot get Python object's `__class__` attribute.");
+ goto python_error;
+ }
+
+ py_iter_cls = PyObject_GetAttrString(py_comp_cls, "_iter_cls");
+ if (!py_iter_cls) {
+ BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component,
+ "Cannot get Python class's `_iter_cls` attribute.");
+ goto python_error;
+ }
+
+ py_iter_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(self_message_iterator),
+ SWIGTYPE_p_bt_self_message_iterator, 0);
+ if (!py_iter_ptr) {
+ const char *err = "Failed to create a SWIG pointer object.";
+
+ BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component,
+ "%s", err);
+ BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_MESSAGE_ITERATOR(
+ self_message_iterator, err);
+ goto error;
+ }
+
+ /*
+ * Create object with borrowed native message iterator
+ * reference:
+ *
+ * py_iter = py_iter_cls.__new__(py_iter_cls, py_iter_ptr)
+ */
+ py_iter = PyObject_CallMethod(py_iter_cls, "__new__",
+ "(OO)", py_iter_cls, py_iter_ptr);
+ if (!py_iter) {
+ BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component,
+ "Failed to call Python class's __new__() method: "
+ "py-cls-addr=%p", py_iter_cls);
+ goto python_error;
+ }
+
+ /*
+ * Initialize object:
+ *
+ * py_iter.__init__(self_output_port)
+ *
+ * through the _init_for_native helper static method.
+ *
+ * At this point, py_iter._ptr is set, so this initialization
+ * function has access to self._component (which gives it the
+ * user Python component object from which the iterator was
+ * created).
+ */
+ py_component_port_output_ptr = SWIG_NewPointerObj(
+ SWIG_as_voidptr(self_component_port_output),
+ SWIGTYPE_p_bt_self_component_port_output, 0);
+ if (!py_component_port_output_ptr) {
+ const char *err = "Failed to create a SWIG pointer object.";
+
+ BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component,
+ "%s", err);
+ BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_MESSAGE_ITERATOR(
+ self_message_iterator, err);
+ goto error;
+ }
+
+ py_init_method_result = PyObject_CallMethod(py_iter,
+ "_bt_init_from_native", "O", py_component_port_output_ptr);
+ if (!py_init_method_result) {
+ BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_component,
+ "User's __init__() method failed:");
+ goto python_error;
+ }
+
+ /*
+ * Since the Python code can never instantiate a user-defined
+ * message iterator class, the native message iterator
+ * object does NOT belong to a user Python message iterator
+ * object (borrowed reference). However this Python object is
+ * owned by this native message iterator object.
+ *
+ * In the Python world, the lifetime of the native message
+ * iterator is managed by a _GenericMessageIterator
+ * instance:
+ *
+ * _GenericMessageIterator instance:
+ * owns a native bt_message_iterator object (iter)
+ * owns a _UserMessageIterator instance (py_iter)
+ * self._ptr is a borrowed reference to the
+ * native bt_private_connection_private_message_iterator
+ * object (iter)
+ */
+ bt_self_message_iterator_set_data(self_message_iterator, py_iter);
+ py_iter = NULL;
+ goto end;
+
+python_error:
+ /* Handling of errors that cause a Python exception to be set. */
+ status = py_exc_to_status_message_iterator(self_message_iterator);
+ BT_ASSERT(status != __BT_FUNC_STATUS_OK);
+ goto end;
+
+error:
+ /* Handling of errors that don't cause a Python exception to be set. */
+ status = __BT_FUNC_STATUS_ERROR;
+
+end:
+ BT_ASSERT(!PyErr_Occurred());
+
+ Py_XDECREF(py_comp_cls);
+ Py_XDECREF(py_iter_cls);
+ Py_XDECREF(py_iter_ptr);
+ Py_XDECREF(py_component_port_output_ptr);
+ Py_XDECREF(py_init_method_result);
+ Py_XDECREF(py_iter);
+ return status;
+}
+
+static
+bt_component_class_message_iterator_init_method_status
+component_class_source_message_iterator_init(
+ bt_self_message_iterator *self_message_iterator,
+ bt_self_component_source *self_component_source,
+ bt_self_component_port_output *self_component_port_output)
+{
+ bt_self_component *self_component = bt_self_component_source_as_self_component(self_component_source);
+
+ return component_class_message_iterator_init(self_message_iterator, self_component, self_component_port_output);
+}
+
+static
+bt_component_class_message_iterator_init_method_status
+component_class_filter_message_iterator_init(
+ bt_self_message_iterator *self_message_iterator,
+ bt_self_component_filter *self_component_filter,
+ bt_self_component_port_output *self_component_port_output)
+{
+ bt_self_component *self_component = bt_self_component_filter_as_self_component(self_component_filter);
+
+ return component_class_message_iterator_init(self_message_iterator, self_component, self_component_port_output);
+}
+
+static
+void component_class_message_iterator_finalize(
+ bt_self_message_iterator *message_iterator)
+{
+ PyObject *py_message_iter = bt_self_message_iterator_get_data(
+ message_iterator);
+ PyObject *py_method_result = NULL;
+
+ BT_ASSERT(py_message_iter);
+
+ /* Call user's _user_finalize() method */
+ py_method_result = PyObject_CallMethod(py_message_iter,
+ "_user_finalize", NULL);
+
+ if (PyErr_Occurred()) {
+ bt_self_component *self_comp =
+ bt_self_message_iterator_borrow_component(
+ message_iterator);
+ bt_logging_level log_level = get_self_component_log_level(
+ self_comp);
+
+ BT_COMP_LOG_CUR_LVL(BT_LOG_WARNING, log_level, self_comp,
+ "User's _user_finalize() method raised an exception: ignoring:");
+ logw_exception(get_self_message_iterator_log_level(
+ message_iterator));
+ }
+
+ /*
+ * Ignore any exception raised by the _user_finalize() method
+ * because it won't change anything at this point: the component
+ * is being destroyed anyway.
+ */
+ PyErr_Clear();
+ Py_XDECREF(py_method_result);
+ Py_DECREF(py_message_iter);
+}
+
+/* Valid for both sources and filters. */
+
+static
+bt_component_class_message_iterator_next_method_status
+component_class_message_iterator_next(
+ bt_self_message_iterator *message_iterator,
+ bt_message_array_const msgs, uint64_t capacity,
+ uint64_t *count)
+{
+ bt_component_class_message_iterator_next_method_status status = __BT_FUNC_STATUS_OK;
+ PyObject *py_message_iter = bt_self_message_iterator_get_data(message_iterator);
+ PyObject *py_method_result = NULL;
+
+ BT_ASSERT(py_message_iter);
+ py_method_result = PyObject_CallMethod(py_message_iter,
+ "_bt_next_from_native", NULL);
+ if (!py_method_result) {
+ status = py_exc_to_status_message_iterator(message_iterator);
+ BT_ASSERT(status != __BT_FUNC_STATUS_OK);
+ goto end;
+ }
+
+ /*
+ * The returned object, on success, is an integer object
+ * (PyLong) containing the address of a native message
+ * object (which is now ours).
+ */
+ msgs[0] = PyLong_AsVoidPtr(py_method_result);
+ *count = 1;
+
+ /* Clear potential overflow error; should never happen */
+ BT_ASSERT(!PyErr_Occurred());
+ goto end;
+
+end:
+ Py_XDECREF(py_method_result);
+ return status;
+}
+
+static
+bt_component_class_sink_consume_method_status
+component_class_sink_consume(bt_self_component_sink *self_component_sink)
+{
+ bt_self_component *self_component = bt_self_component_sink_as_self_component(self_component_sink);
+ PyObject *py_comp = bt_self_component_get_data(self_component);
+ PyObject *py_method_result = NULL;
+ bt_component_class_sink_consume_method_status status;
+
+ BT_ASSERT(py_comp);
+ py_method_result = PyObject_CallMethod(py_comp,
+ "_user_consume", NULL);
+ status = py_exc_to_status_component(self_component);
+ BT_ASSERT(py_method_result || status != __BT_FUNC_STATUS_OK);
+ Py_XDECREF(py_method_result);
+ return status;
+}
+
+static
+int component_class_set_help_and_desc(
+ bt_component_class *component_class,
+ const char *description, const char *help)
+{
+ int ret;
+
+ if (description) {
+ ret = bt_component_class_set_description(component_class, description);
+ if (ret) {
+ BT_LOGE("Cannot set component class's description: "
+ "comp-cls-addr=%p", component_class);
+ goto end;
+ }
+ }
+
+ if (help) {
+ ret = bt_component_class_set_help(component_class, help);
+ if (ret) {
+ BT_LOGE("Cannot set component class's help text: "
+ "comp-cls-addr=%p", component_class);
+ goto end;
+ }
+ }
+
+ ret = 0;
+
+end:
+ return ret;
+}
+
+static
+bt_component_class_source *bt_bt2_component_class_source_create(
+ PyObject *py_cls, const char *name, const char *description,
+ const char *help)
+{
+ bt_component_class_source *component_class_source;
+ bt_component_class *component_class;
+ int ret;
+
+ BT_ASSERT(py_cls);
+ component_class_source = bt_component_class_source_create(name,
+ component_class_message_iterator_next);
+ if (!component_class_source) {
+ BT_LOGE_STR("Cannot create source component class.");
+ goto end;
+ }
+
+ component_class = bt_component_class_source_as_component_class(component_class_source);
+
+ if (component_class_set_help_and_desc(component_class, description, help)) {
+ goto end;
+ }
+
+ ret = bt_component_class_source_set_init_method(component_class_source, component_class_source_init);
+ BT_ASSERT(ret == 0);
+ ret = bt_component_class_source_set_finalize_method(component_class_source, component_class_source_finalize);
+ BT_ASSERT(ret == 0);
+ ret = bt_component_class_source_set_message_iterator_can_seek_beginning_method(component_class_source,
+ component_class_can_seek_beginning);
+ BT_ASSERT(ret == 0);
+ ret = bt_component_class_source_set_message_iterator_seek_beginning_method(component_class_source,
+ component_class_seek_beginning);
+ BT_ASSERT(ret == 0);
+ ret = bt_component_class_source_set_output_port_connected_method(component_class_source,
+ component_class_source_output_port_connected);
+ BT_ASSERT(ret == 0);
+ ret = bt_component_class_source_set_query_method(component_class_source, component_class_source_query);
+ BT_ASSERT(ret == 0);
+ ret = bt_component_class_source_set_message_iterator_init_method(
+ component_class_source, component_class_source_message_iterator_init);
+ BT_ASSERT(ret == 0);
+ ret = bt_component_class_source_set_message_iterator_finalize_method(
+ component_class_source, component_class_message_iterator_finalize);
+ BT_ASSERT(ret == 0);
+ register_cc_ptr_to_py_cls(component_class, py_cls);
+
+end:
+ return component_class_source;
+}
+
+static
+bt_component_class_filter *bt_bt2_component_class_filter_create(
+ PyObject *py_cls, const char *name, const char *description,
+ const char *help)
+{
+ bt_component_class *component_class;
+ bt_component_class_filter *component_class_filter;
+ int ret;
+
+ BT_ASSERT(py_cls);
+ component_class_filter = bt_component_class_filter_create(name,
+ component_class_message_iterator_next);
+ if (!component_class_filter) {
+ BT_LOGE_STR("Cannot create filter component class.");
+ goto end;
+ }
+
+ component_class = bt_component_class_filter_as_component_class(component_class_filter);
+
+ if (component_class_set_help_and_desc(component_class, description, help)) {
+ goto end;
+ }
+
+ ret = bt_component_class_filter_set_init_method(component_class_filter, component_class_filter_init);
+ BT_ASSERT(ret == 0);
+ ret = bt_component_class_filter_set_finalize_method (component_class_filter, component_class_filter_finalize);
+ BT_ASSERT(ret == 0);
+ ret = bt_component_class_filter_set_message_iterator_can_seek_beginning_method(component_class_filter,
+ component_class_can_seek_beginning);
+ BT_ASSERT(ret == 0);
+ ret = bt_component_class_filter_set_message_iterator_seek_beginning_method(component_class_filter,
+ component_class_seek_beginning);
+ BT_ASSERT(ret == 0);
+ ret = bt_component_class_filter_set_input_port_connected_method(component_class_filter,
+ component_class_filter_input_port_connected);
+ BT_ASSERT(ret == 0);
+ ret = bt_component_class_filter_set_output_port_connected_method(component_class_filter,
+ component_class_filter_output_port_connected);
+ BT_ASSERT(ret == 0);
+ ret = bt_component_class_filter_set_query_method(component_class_filter, component_class_filter_query);
+ BT_ASSERT(ret == 0);
+ ret = bt_component_class_filter_set_message_iterator_init_method(
+ component_class_filter, component_class_filter_message_iterator_init);
+ BT_ASSERT(ret == 0);
+ ret = bt_component_class_filter_set_message_iterator_finalize_method(
+ component_class_filter, component_class_message_iterator_finalize);
+ BT_ASSERT(ret == 0);
+ register_cc_ptr_to_py_cls(component_class, py_cls);
+
+end:
+ return component_class_filter;
+}
+
+static
+bt_component_class_sink *bt_bt2_component_class_sink_create(
+ PyObject *py_cls, const char *name, const char *description,
+ const char *help)
+{
+ bt_component_class_sink *component_class_sink;
+ bt_component_class *component_class;
+ int ret;
+
+ BT_ASSERT(py_cls);
+ component_class_sink = bt_component_class_sink_create(name, component_class_sink_consume);
+
+ if (!component_class_sink) {
+ BT_LOGE_STR("Cannot create sink component class.");
+ goto end;
+ }
+
+ component_class = bt_component_class_sink_as_component_class(component_class_sink);
+
+ if (component_class_set_help_and_desc(component_class, description, help)) {
+ goto end;
+ }
+
+ ret = bt_component_class_sink_set_init_method(component_class_sink, component_class_sink_init);
+ BT_ASSERT(ret == 0);
+ ret = bt_component_class_sink_set_finalize_method(component_class_sink, component_class_sink_finalize);
+ BT_ASSERT(ret == 0);
+ ret = bt_component_class_sink_set_input_port_connected_method(component_class_sink,
+ component_class_sink_input_port_connected);
+ BT_ASSERT(ret == 0);
+ ret = bt_component_class_sink_set_graph_is_configured_method(component_class_sink,
+ component_class_sink_graph_is_configured);
+ BT_ASSERT(ret == 0);
+ ret = bt_component_class_sink_set_query_method(component_class_sink, component_class_sink_query);
+ BT_ASSERT(ret == 0);
+ register_cc_ptr_to_py_cls(component_class, py_cls);
+
+end:
+ return component_class_sink;
+}
/* Helper functions for Python */
%{
-static
-void graph_listener_removed(void *py_callable)
-{
- BT_ASSERT(py_callable);
- Py_DECREF(py_callable);
-}
-
-static bt_graph_listener_func_status port_added_listener(
- const void *component,
- swig_type_info *component_swig_type,
- bt_component_class_type component_class_type,
- const void *port,
- swig_type_info *port_swig_type,
- bt_port_type port_type,
- void *py_callable)
-{
- PyObject *py_component_ptr = NULL;
- PyObject *py_port_ptr = NULL;
- PyObject *py_res = NULL;
- bt_graph_listener_func_status status;
-
- py_component_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(component), component_swig_type, 0);
- if (!py_component_ptr) {
- BT_LOGF_STR("Failed to create component SWIG pointer object.");
- status = __BT_FUNC_STATUS_MEMORY_ERROR;
- goto end;
- }
-
- py_port_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(port), port_swig_type, 0);
- if (!py_port_ptr) {
- BT_LOGF_STR("Failed to create port SWIG pointer object.");
- status = __BT_FUNC_STATUS_MEMORY_ERROR;
- goto end;
- }
-
- py_res = PyObject_CallFunction(py_callable, "(OiOi)",
- py_component_ptr, component_class_type, py_port_ptr, port_type);
- if (!py_res) {
- loge_exception("Graph's port added listener (Python)",
- BT_LOG_OUTPUT_LEVEL);
- PyErr_Clear();
- status = __BT_FUNC_STATUS_ERROR;
- goto end;
- }
-
- BT_ASSERT(py_res == Py_None);
- status = __BT_FUNC_STATUS_OK;
-
-end:
- Py_XDECREF(py_res);
- Py_XDECREF(py_port_ptr);
- Py_XDECREF(py_component_ptr);
- return status;
-}
-
-static
-bt_graph_listener_func_status
-source_component_output_port_added_listener(const bt_component_source *component_source,
- const bt_port_output *port_output, void *py_callable)
-{
- return port_added_listener(
- component_source, SWIGTYPE_p_bt_component_source, BT_COMPONENT_CLASS_TYPE_SOURCE,
- port_output, SWIGTYPE_p_bt_port_output, BT_PORT_TYPE_OUTPUT, py_callable);
-}
-
-static
-bt_graph_listener_func_status
-filter_component_input_port_added_listener(const bt_component_filter *component_filter,
- const bt_port_input *port_input, void *py_callable)
-{
- return port_added_listener(
- component_filter, SWIGTYPE_p_bt_component_filter, BT_COMPONENT_CLASS_TYPE_FILTER,
- port_input, SWIGTYPE_p_bt_port_input, BT_PORT_TYPE_INPUT, py_callable);
-}
-
-static
-bt_graph_listener_func_status
-filter_component_output_port_added_listener(const bt_component_filter *component_filter,
- const bt_port_output *port_output, void *py_callable)
-{
- return port_added_listener(
- component_filter, SWIGTYPE_p_bt_component_filter, BT_COMPONENT_CLASS_TYPE_FILTER,
- port_output, SWIGTYPE_p_bt_port_output, BT_PORT_TYPE_OUTPUT, py_callable);
-}
-
-static
-bt_graph_listener_func_status
-sink_component_input_port_added_listener(const bt_component_sink *component_sink,
- const bt_port_input *port_input, void *py_callable)
-{
- return port_added_listener(
- component_sink, SWIGTYPE_p_bt_component_sink, BT_COMPONENT_CLASS_TYPE_SINK,
- port_input, SWIGTYPE_p_bt_port_input, BT_PORT_TYPE_INPUT, py_callable);
-}
-
-static
-PyObject *bt_bt2_graph_add_port_added_listener(struct bt_graph *graph,
- PyObject *py_callable)
-{
- PyObject *py_listener_ids = NULL;
- PyObject *py_listener_id = NULL;
- bt_listener_id listener_id;
- bt_graph_add_listener_status status;
- const char * const module_name =
- "graph_add_port_added_listener() (Python)";
-
- BT_ASSERT(graph);
- BT_ASSERT(py_callable);
-
- /*
- * Behind the scene, we will be registering 4 different listeners and
- * return all of their ids.
- */
- py_listener_ids = PyTuple_New(4);
- if (!py_listener_ids) {
- BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name,
- "Failed to allocate one PyTuple.");
- goto error;
- }
-
- /* source output port */
- status = bt_graph_add_source_component_output_port_added_listener(
- graph, source_component_output_port_added_listener,
- graph_listener_removed, py_callable, &listener_id);
- if (status != __BT_FUNC_STATUS_OK) {
- /*
- * bt_graph_add_source_component_output_port_added_listener has
- * already logged/appended an error cause.
- */
- goto error;
- }
-
- py_listener_id = PyLong_FromUnsignedLongLong(listener_id);
- if (!py_listener_id) {
- BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name,
- "Failed to allocate one PyLong.");
- goto error;
- }
-
- PyTuple_SET_ITEM(py_listener_ids, 0, py_listener_id);
- py_listener_id = NULL;
-
- /* filter input port */
- status = bt_graph_add_filter_component_input_port_added_listener(
- graph, filter_component_input_port_added_listener,
- graph_listener_removed, py_callable, &listener_id);
- if (status != __BT_FUNC_STATUS_OK) {
- /*
- * bt_graph_add_filter_component_input_port_added_listener has
- * already logged/appended an error cause.
- */
- goto error;
- }
-
- py_listener_id = PyLong_FromUnsignedLongLong(listener_id);
- if (!py_listener_id) {
- BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name,
- "Failed to allocate one PyLong.");
- goto error;
- }
-
- PyTuple_SET_ITEM(py_listener_ids, 1, py_listener_id);
- py_listener_id = NULL;
-
- /* filter output port */
- status = bt_graph_add_filter_component_output_port_added_listener(
- graph, filter_component_output_port_added_listener,
- graph_listener_removed, py_callable, &listener_id);
- if (status != __BT_FUNC_STATUS_OK) {
- /*
- * bt_graph_add_filter_component_output_port_added_listener has
- * already logged/appended an error cause.
- */
- goto error;
- }
-
- py_listener_id = PyLong_FromUnsignedLongLong(listener_id);
- if (!py_listener_id) {
- BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name,
- "Failed to allocate one PyLong.");
- goto error;
- }
-
- PyTuple_SET_ITEM(py_listener_ids, 2, py_listener_id);
- py_listener_id = NULL;
-
- /* sink input port */
- status = bt_graph_add_sink_component_input_port_added_listener(
- graph, sink_component_input_port_added_listener,
- graph_listener_removed, py_callable, &listener_id);
- if (status != __BT_FUNC_STATUS_OK) {
- /*
- * bt_graph_add_sink_component_input_port_added_listener has
- * already logged/appended an error cause.
- */
- goto error;
- }
-
- py_listener_id = PyLong_FromUnsignedLongLong(listener_id);
- if (!py_listener_id) {
- BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name,
- "Failed to allocate one PyLong.");
- goto error;
- }
-
-
- PyTuple_SET_ITEM(py_listener_ids, 3, py_listener_id);
- py_listener_id = NULL;
-
- Py_INCREF(py_callable);
- Py_INCREF(py_callable);
- Py_INCREF(py_callable);
- Py_INCREF(py_callable);
-
- goto end;
-
-error:
- Py_XDECREF(py_listener_ids);
- py_listener_ids = Py_None;
- Py_INCREF(py_listener_ids);
-
-end:
-
- Py_XDECREF(py_listener_id);
- return py_listener_ids;
-}
-
-static
-bt_graph_listener_func_status ports_connected_listener(
- const void *upstream_component,
- swig_type_info *upstream_component_swig_type,
- bt_component_class_type upstream_component_class_type,
- const bt_port_output *upstream_port,
- const void *downstream_component,
- swig_type_info *downstream_component_swig_type,
- bt_component_class_type downstream_component_class_type,
- const bt_port_input *downstream_port,
- void *py_callable)
-{
- PyObject *py_upstream_component_ptr = NULL;
- PyObject *py_upstream_port_ptr = NULL;
- PyObject *py_downstream_component_ptr = NULL;
- PyObject *py_downstream_port_ptr = NULL;
- PyObject *py_res = NULL;
- bt_graph_listener_func_status status;
-
- py_upstream_component_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(upstream_component),
- upstream_component_swig_type, 0);
- if (!py_upstream_component_ptr) {
- BT_LOGF_STR("Failed to create upstream component SWIG pointer object.");
- status = __BT_FUNC_STATUS_MEMORY_ERROR;
- goto end;
- }
-
- py_upstream_port_ptr = SWIG_NewPointerObj(
- SWIG_as_voidptr(upstream_port), SWIGTYPE_p_bt_port_output, 0);
- if (!py_upstream_port_ptr) {
- BT_LOGF_STR("Failed to create upstream port SWIG pointer object.");
- status = __BT_FUNC_STATUS_MEMORY_ERROR;
- goto end;
- }
-
- py_downstream_component_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(downstream_component),
- downstream_component_swig_type, 0);
- if (!py_downstream_component_ptr) {
- BT_LOGF_STR("Failed to create downstream component SWIG pointer object.");
- status = __BT_FUNC_STATUS_MEMORY_ERROR;
- goto end;
- }
-
- py_downstream_port_ptr = SWIG_NewPointerObj(
- SWIG_as_voidptr(downstream_port), SWIGTYPE_p_bt_port_input, 0);
- if (!py_downstream_port_ptr) {
- BT_LOGF_STR("Failed to create downstream port SWIG pointer object.");
- status = __BT_FUNC_STATUS_MEMORY_ERROR;
- goto end;
- }
-
- py_res = PyObject_CallFunction(py_callable, "(OiOOiO)",
- py_upstream_component_ptr, upstream_component_class_type,
- py_upstream_port_ptr,
- py_downstream_component_ptr, downstream_component_class_type,
- py_downstream_port_ptr);
- if (!py_res) {
- loge_exception("Graph's port connected listener (Python)",
- BT_LOG_OUTPUT_LEVEL);
- PyErr_Clear();
- status = __BT_FUNC_STATUS_ERROR;
- goto end;
- }
-
- BT_ASSERT(py_res == Py_None);
- status = __BT_FUNC_STATUS_OK;
-
-end:
- Py_XDECREF(py_upstream_component_ptr);
- Py_XDECREF(py_upstream_port_ptr);
- Py_XDECREF(py_downstream_component_ptr);
- Py_XDECREF(py_downstream_port_ptr);
- Py_XDECREF(py_res);
- return status;
-}
-
-static
-bt_graph_listener_func_status source_filter_component_ports_connected_listener(
- const bt_component_source *source_component,
- const bt_component_filter *filter_component,
- const bt_port_output *upstream_port,
- const bt_port_input *downstream_port, void *py_callable)
-{
- return ports_connected_listener(
- source_component, SWIGTYPE_p_bt_component_source, BT_COMPONENT_CLASS_TYPE_SOURCE,
- upstream_port,
- filter_component, SWIGTYPE_p_bt_component_filter, BT_COMPONENT_CLASS_TYPE_FILTER,
- downstream_port,
- py_callable);
-}
-
-static
-bt_graph_listener_func_status source_sink_component_ports_connected_listener(
- const bt_component_source *source_component,
- const bt_component_sink *sink_component,
- const bt_port_output *upstream_port,
- const bt_port_input *downstream_port, void *py_callable)
-{
- return ports_connected_listener(
- source_component, SWIGTYPE_p_bt_component_source, BT_COMPONENT_CLASS_TYPE_SOURCE,
- upstream_port,
- sink_component, SWIGTYPE_p_bt_component_sink, BT_COMPONENT_CLASS_TYPE_SINK,
- downstream_port,
- py_callable);
-}
-
-static
-bt_graph_listener_func_status filter_filter_component_ports_connected_listener(
- const bt_component_filter *filter_component_left,
- const bt_component_filter *filter_component_right,
- const bt_port_output *upstream_port,
- const bt_port_input *downstream_port, void *py_callable)
-{
- return ports_connected_listener(
- filter_component_left, SWIGTYPE_p_bt_component_filter, BT_COMPONENT_CLASS_TYPE_FILTER,
- upstream_port,
- filter_component_right, SWIGTYPE_p_bt_component_filter, BT_COMPONENT_CLASS_TYPE_FILTER,
- downstream_port,
- py_callable);
-}
-
-static
-bt_graph_listener_func_status filter_sink_component_ports_connected_listener(
- const bt_component_filter *filter_component,
- const bt_component_sink *sink_component,
- const bt_port_output *upstream_port,
- const bt_port_input *downstream_port, void *py_callable)
-{
- return ports_connected_listener(
- filter_component, SWIGTYPE_p_bt_component_filter, BT_COMPONENT_CLASS_TYPE_FILTER,
- upstream_port,
- sink_component, SWIGTYPE_p_bt_component_sink, BT_COMPONENT_CLASS_TYPE_SINK,
- downstream_port,
- py_callable);
-}
-
-static
-PyObject *bt_bt2_graph_add_ports_connected_listener(struct bt_graph *graph,
- PyObject *py_callable)
-{
- PyObject *py_listener_ids = NULL;
- PyObject *py_listener_id = NULL;
- bt_listener_id listener_id;
- bt_graph_add_listener_status status;
- const char * const module_name =
- "graph_add_ports_connected_listener() (Python)";
-
- BT_ASSERT(graph);
- BT_ASSERT(py_callable);
-
- /* Behind the scene, we will be registering 4 different listeners and
- * return all of their ids. */
- py_listener_ids = PyTuple_New(4);
- if (!py_listener_ids) {
- BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name,
- "Failed to allocate one PyTuple.");
- goto error;
- }
-
- /* source -> filter connection */
- status = bt_graph_add_source_filter_component_ports_connected_listener(
- graph, source_filter_component_ports_connected_listener,
- graph_listener_removed, py_callable, &listener_id);
- if (status != __BT_FUNC_STATUS_OK) {
- /*
- * bt_graph_add_source_filter_component_ports_connected_listener
- * has already logged/appended an error cause.
- */
- goto error;
- }
-
- py_listener_id = PyLong_FromUnsignedLongLong(listener_id);
- if (!py_listener_id) {
- BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name,
- "Failed to allocate one PyLong.");
- goto error;
- }
-
- PyTuple_SET_ITEM(py_listener_ids, 0, py_listener_id);
- py_listener_id = NULL;
-
- /* source -> sink connection */
- status = bt_graph_add_source_sink_component_ports_connected_listener(
- graph, source_sink_component_ports_connected_listener,
- graph_listener_removed, py_callable, &listener_id);
- if (status != __BT_FUNC_STATUS_OK) {
- /*
- * bt_graph_add_source_sink_component_ports_connected_listener
- * has already logged/appended an error cause.
- */
- goto error;
- }
-
- py_listener_id = PyLong_FromUnsignedLongLong(listener_id);
- if (!py_listener_id) {
- BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name,
- "Failed to allocate one PyLong.");
- goto error;
- }
-
- PyTuple_SET_ITEM(py_listener_ids, 1, py_listener_id);
- py_listener_id = NULL;
-
- /* filter -> filter connection */
- status = bt_graph_add_filter_filter_component_ports_connected_listener(
- graph, filter_filter_component_ports_connected_listener,
- graph_listener_removed, py_callable, &listener_id);
- if (status != __BT_FUNC_STATUS_OK) {
- /*
- * bt_graph_add_filter_filter_component_ports_connected_listener
- * has already logged/appended an error cause.
- */
- goto error;
- }
-
- py_listener_id = PyLong_FromUnsignedLongLong(listener_id);
- if (!py_listener_id) {
- BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name,
- "Failed to allocate one PyLong.");
- goto error;
- }
-
- PyTuple_SET_ITEM(py_listener_ids, 2, py_listener_id);
- py_listener_id = NULL;
-
- /* filter -> sink connection */
- status = bt_graph_add_filter_sink_component_ports_connected_listener(
- graph, filter_sink_component_ports_connected_listener,
- graph_listener_removed, py_callable, &listener_id);
- if (status != __BT_FUNC_STATUS_OK) {
- /*
- * bt_graph_add_filter_sink_component_ports_connected_listener
- * has already logged/appended an error cause.
- */
- goto error;
- }
-
- py_listener_id = PyLong_FromUnsignedLongLong(listener_id);
- if (!py_listener_id) {
- BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name,
- "Failed to allocate one PyLong.");
- goto error;
- }
-
- PyTuple_SET_ITEM(py_listener_ids, 3, py_listener_id);
- py_listener_id = NULL;
-
- Py_INCREF(py_callable);
- Py_INCREF(py_callable);
- Py_INCREF(py_callable);
- Py_INCREF(py_callable);
-
- goto end;
-
-error:
- Py_XDECREF(py_listener_ids);
- py_listener_ids = Py_None;
- Py_INCREF(py_listener_ids);
-
-end:
-
- Py_XDECREF(py_listener_id);
- return py_listener_ids;
-}
+#include "native_bt_graph.i.h"
%}
PyObject *bt_bt2_graph_add_port_added_listener(struct bt_graph *graph,
--- /dev/null
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+static
+void graph_listener_removed(void *py_callable)
+{
+ BT_ASSERT(py_callable);
+ Py_DECREF(py_callable);
+}
+
+static bt_graph_listener_func_status port_added_listener(
+ const void *component,
+ swig_type_info *component_swig_type,
+ bt_component_class_type component_class_type,
+ const void *port,
+ swig_type_info *port_swig_type,
+ bt_port_type port_type,
+ void *py_callable)
+{
+ PyObject *py_component_ptr = NULL;
+ PyObject *py_port_ptr = NULL;
+ PyObject *py_res = NULL;
+ bt_graph_listener_func_status status;
+
+ py_component_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(component), component_swig_type, 0);
+ if (!py_component_ptr) {
+ BT_LOGF_STR("Failed to create component SWIG pointer object.");
+ status = __BT_FUNC_STATUS_MEMORY_ERROR;
+ goto end;
+ }
+
+ py_port_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(port), port_swig_type, 0);
+ if (!py_port_ptr) {
+ BT_LOGF_STR("Failed to create port SWIG pointer object.");
+ status = __BT_FUNC_STATUS_MEMORY_ERROR;
+ goto end;
+ }
+
+ py_res = PyObject_CallFunction(py_callable, "(OiOi)",
+ py_component_ptr, component_class_type, py_port_ptr, port_type);
+ if (!py_res) {
+ loge_exception("Graph's port added listener (Python)",
+ BT_LOG_OUTPUT_LEVEL);
+ PyErr_Clear();
+ status = __BT_FUNC_STATUS_ERROR;
+ goto end;
+ }
+
+ BT_ASSERT(py_res == Py_None);
+ status = __BT_FUNC_STATUS_OK;
+
+end:
+ Py_XDECREF(py_res);
+ Py_XDECREF(py_port_ptr);
+ Py_XDECREF(py_component_ptr);
+ return status;
+}
+
+static
+bt_graph_listener_func_status
+source_component_output_port_added_listener(const bt_component_source *component_source,
+ const bt_port_output *port_output, void *py_callable)
+{
+ return port_added_listener(
+ component_source, SWIGTYPE_p_bt_component_source, BT_COMPONENT_CLASS_TYPE_SOURCE,
+ port_output, SWIGTYPE_p_bt_port_output, BT_PORT_TYPE_OUTPUT, py_callable);
+}
+
+static
+bt_graph_listener_func_status
+filter_component_input_port_added_listener(const bt_component_filter *component_filter,
+ const bt_port_input *port_input, void *py_callable)
+{
+ return port_added_listener(
+ component_filter, SWIGTYPE_p_bt_component_filter, BT_COMPONENT_CLASS_TYPE_FILTER,
+ port_input, SWIGTYPE_p_bt_port_input, BT_PORT_TYPE_INPUT, py_callable);
+}
+
+static
+bt_graph_listener_func_status
+filter_component_output_port_added_listener(const bt_component_filter *component_filter,
+ const bt_port_output *port_output, void *py_callable)
+{
+ return port_added_listener(
+ component_filter, SWIGTYPE_p_bt_component_filter, BT_COMPONENT_CLASS_TYPE_FILTER,
+ port_output, SWIGTYPE_p_bt_port_output, BT_PORT_TYPE_OUTPUT, py_callable);
+}
+
+static
+bt_graph_listener_func_status
+sink_component_input_port_added_listener(const bt_component_sink *component_sink,
+ const bt_port_input *port_input, void *py_callable)
+{
+ return port_added_listener(
+ component_sink, SWIGTYPE_p_bt_component_sink, BT_COMPONENT_CLASS_TYPE_SINK,
+ port_input, SWIGTYPE_p_bt_port_input, BT_PORT_TYPE_INPUT, py_callable);
+}
+
+static
+PyObject *bt_bt2_graph_add_port_added_listener(struct bt_graph *graph,
+ PyObject *py_callable)
+{
+ PyObject *py_listener_ids = NULL;
+ PyObject *py_listener_id = NULL;
+ bt_listener_id listener_id;
+ bt_graph_add_listener_status status;
+ const char * const module_name =
+ "graph_add_port_added_listener() (Python)";
+
+ BT_ASSERT(graph);
+ BT_ASSERT(py_callable);
+
+ /*
+ * Behind the scene, we will be registering 4 different listeners and
+ * return all of their ids.
+ */
+ py_listener_ids = PyTuple_New(4);
+ if (!py_listener_ids) {
+ BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name,
+ "Failed to allocate one PyTuple.");
+ goto error;
+ }
+
+ /* source output port */
+ status = bt_graph_add_source_component_output_port_added_listener(
+ graph, source_component_output_port_added_listener,
+ graph_listener_removed, py_callable, &listener_id);
+ if (status != __BT_FUNC_STATUS_OK) {
+ /*
+ * bt_graph_add_source_component_output_port_added_listener has
+ * already logged/appended an error cause.
+ */
+ goto error;
+ }
+
+ py_listener_id = PyLong_FromUnsignedLongLong(listener_id);
+ if (!py_listener_id) {
+ BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name,
+ "Failed to allocate one PyLong.");
+ goto error;
+ }
+
+ PyTuple_SET_ITEM(py_listener_ids, 0, py_listener_id);
+ py_listener_id = NULL;
+
+ /* filter input port */
+ status = bt_graph_add_filter_component_input_port_added_listener(
+ graph, filter_component_input_port_added_listener,
+ graph_listener_removed, py_callable, &listener_id);
+ if (status != __BT_FUNC_STATUS_OK) {
+ /*
+ * bt_graph_add_filter_component_input_port_added_listener has
+ * already logged/appended an error cause.
+ */
+ goto error;
+ }
+
+ py_listener_id = PyLong_FromUnsignedLongLong(listener_id);
+ if (!py_listener_id) {
+ BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name,
+ "Failed to allocate one PyLong.");
+ goto error;
+ }
+
+ PyTuple_SET_ITEM(py_listener_ids, 1, py_listener_id);
+ py_listener_id = NULL;
+
+ /* filter output port */
+ status = bt_graph_add_filter_component_output_port_added_listener(
+ graph, filter_component_output_port_added_listener,
+ graph_listener_removed, py_callable, &listener_id);
+ if (status != __BT_FUNC_STATUS_OK) {
+ /*
+ * bt_graph_add_filter_component_output_port_added_listener has
+ * already logged/appended an error cause.
+ */
+ goto error;
+ }
+
+ py_listener_id = PyLong_FromUnsignedLongLong(listener_id);
+ if (!py_listener_id) {
+ BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name,
+ "Failed to allocate one PyLong.");
+ goto error;
+ }
+
+ PyTuple_SET_ITEM(py_listener_ids, 2, py_listener_id);
+ py_listener_id = NULL;
+
+ /* sink input port */
+ status = bt_graph_add_sink_component_input_port_added_listener(
+ graph, sink_component_input_port_added_listener,
+ graph_listener_removed, py_callable, &listener_id);
+ if (status != __BT_FUNC_STATUS_OK) {
+ /*
+ * bt_graph_add_sink_component_input_port_added_listener has
+ * already logged/appended an error cause.
+ */
+ goto error;
+ }
+
+ py_listener_id = PyLong_FromUnsignedLongLong(listener_id);
+ if (!py_listener_id) {
+ BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name,
+ "Failed to allocate one PyLong.");
+ goto error;
+ }
+
+
+ PyTuple_SET_ITEM(py_listener_ids, 3, py_listener_id);
+ py_listener_id = NULL;
+
+ Py_INCREF(py_callable);
+ Py_INCREF(py_callable);
+ Py_INCREF(py_callable);
+ Py_INCREF(py_callable);
+
+ goto end;
+
+error:
+ Py_XDECREF(py_listener_ids);
+ py_listener_ids = Py_None;
+ Py_INCREF(py_listener_ids);
+
+end:
+
+ Py_XDECREF(py_listener_id);
+ return py_listener_ids;
+}
+
+static
+bt_graph_listener_func_status ports_connected_listener(
+ const void *upstream_component,
+ swig_type_info *upstream_component_swig_type,
+ bt_component_class_type upstream_component_class_type,
+ const bt_port_output *upstream_port,
+ const void *downstream_component,
+ swig_type_info *downstream_component_swig_type,
+ bt_component_class_type downstream_component_class_type,
+ const bt_port_input *downstream_port,
+ void *py_callable)
+{
+ PyObject *py_upstream_component_ptr = NULL;
+ PyObject *py_upstream_port_ptr = NULL;
+ PyObject *py_downstream_component_ptr = NULL;
+ PyObject *py_downstream_port_ptr = NULL;
+ PyObject *py_res = NULL;
+ bt_graph_listener_func_status status;
+
+ py_upstream_component_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(upstream_component),
+ upstream_component_swig_type, 0);
+ if (!py_upstream_component_ptr) {
+ BT_LOGF_STR("Failed to create upstream component SWIG pointer object.");
+ status = __BT_FUNC_STATUS_MEMORY_ERROR;
+ goto end;
+ }
+
+ py_upstream_port_ptr = SWIG_NewPointerObj(
+ SWIG_as_voidptr(upstream_port), SWIGTYPE_p_bt_port_output, 0);
+ if (!py_upstream_port_ptr) {
+ BT_LOGF_STR("Failed to create upstream port SWIG pointer object.");
+ status = __BT_FUNC_STATUS_MEMORY_ERROR;
+ goto end;
+ }
+
+ py_downstream_component_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(downstream_component),
+ downstream_component_swig_type, 0);
+ if (!py_downstream_component_ptr) {
+ BT_LOGF_STR("Failed to create downstream component SWIG pointer object.");
+ status = __BT_FUNC_STATUS_MEMORY_ERROR;
+ goto end;
+ }
+
+ py_downstream_port_ptr = SWIG_NewPointerObj(
+ SWIG_as_voidptr(downstream_port), SWIGTYPE_p_bt_port_input, 0);
+ if (!py_downstream_port_ptr) {
+ BT_LOGF_STR("Failed to create downstream port SWIG pointer object.");
+ status = __BT_FUNC_STATUS_MEMORY_ERROR;
+ goto end;
+ }
+
+ py_res = PyObject_CallFunction(py_callable, "(OiOOiO)",
+ py_upstream_component_ptr, upstream_component_class_type,
+ py_upstream_port_ptr,
+ py_downstream_component_ptr, downstream_component_class_type,
+ py_downstream_port_ptr);
+ if (!py_res) {
+ loge_exception("Graph's port connected listener (Python)",
+ BT_LOG_OUTPUT_LEVEL);
+ PyErr_Clear();
+ status = __BT_FUNC_STATUS_ERROR;
+ goto end;
+ }
+
+ BT_ASSERT(py_res == Py_None);
+ status = __BT_FUNC_STATUS_OK;
+
+end:
+ Py_XDECREF(py_upstream_component_ptr);
+ Py_XDECREF(py_upstream_port_ptr);
+ Py_XDECREF(py_downstream_component_ptr);
+ Py_XDECREF(py_downstream_port_ptr);
+ Py_XDECREF(py_res);
+ return status;
+}
+
+static
+bt_graph_listener_func_status source_filter_component_ports_connected_listener(
+ const bt_component_source *source_component,
+ const bt_component_filter *filter_component,
+ const bt_port_output *upstream_port,
+ const bt_port_input *downstream_port, void *py_callable)
+{
+ return ports_connected_listener(
+ source_component, SWIGTYPE_p_bt_component_source, BT_COMPONENT_CLASS_TYPE_SOURCE,
+ upstream_port,
+ filter_component, SWIGTYPE_p_bt_component_filter, BT_COMPONENT_CLASS_TYPE_FILTER,
+ downstream_port,
+ py_callable);
+}
+
+static
+bt_graph_listener_func_status source_sink_component_ports_connected_listener(
+ const bt_component_source *source_component,
+ const bt_component_sink *sink_component,
+ const bt_port_output *upstream_port,
+ const bt_port_input *downstream_port, void *py_callable)
+{
+ return ports_connected_listener(
+ source_component, SWIGTYPE_p_bt_component_source, BT_COMPONENT_CLASS_TYPE_SOURCE,
+ upstream_port,
+ sink_component, SWIGTYPE_p_bt_component_sink, BT_COMPONENT_CLASS_TYPE_SINK,
+ downstream_port,
+ py_callable);
+}
+
+static
+bt_graph_listener_func_status filter_filter_component_ports_connected_listener(
+ const bt_component_filter *filter_component_left,
+ const bt_component_filter *filter_component_right,
+ const bt_port_output *upstream_port,
+ const bt_port_input *downstream_port, void *py_callable)
+{
+ return ports_connected_listener(
+ filter_component_left, SWIGTYPE_p_bt_component_filter, BT_COMPONENT_CLASS_TYPE_FILTER,
+ upstream_port,
+ filter_component_right, SWIGTYPE_p_bt_component_filter, BT_COMPONENT_CLASS_TYPE_FILTER,
+ downstream_port,
+ py_callable);
+}
+
+static
+bt_graph_listener_func_status filter_sink_component_ports_connected_listener(
+ const bt_component_filter *filter_component,
+ const bt_component_sink *sink_component,
+ const bt_port_output *upstream_port,
+ const bt_port_input *downstream_port, void *py_callable)
+{
+ return ports_connected_listener(
+ filter_component, SWIGTYPE_p_bt_component_filter, BT_COMPONENT_CLASS_TYPE_FILTER,
+ upstream_port,
+ sink_component, SWIGTYPE_p_bt_component_sink, BT_COMPONENT_CLASS_TYPE_SINK,
+ downstream_port,
+ py_callable);
+}
+
+static
+PyObject *bt_bt2_graph_add_ports_connected_listener(struct bt_graph *graph,
+ PyObject *py_callable)
+{
+ PyObject *py_listener_ids = NULL;
+ PyObject *py_listener_id = NULL;
+ bt_listener_id listener_id;
+ bt_graph_add_listener_status status;
+ const char * const module_name =
+ "graph_add_ports_connected_listener() (Python)";
+
+ BT_ASSERT(graph);
+ BT_ASSERT(py_callable);
+
+ /* Behind the scene, we will be registering 4 different listeners and
+ * return all of their ids. */
+ py_listener_ids = PyTuple_New(4);
+ if (!py_listener_ids) {
+ BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name,
+ "Failed to allocate one PyTuple.");
+ goto error;
+ }
+
+ /* source -> filter connection */
+ status = bt_graph_add_source_filter_component_ports_connected_listener(
+ graph, source_filter_component_ports_connected_listener,
+ graph_listener_removed, py_callable, &listener_id);
+ if (status != __BT_FUNC_STATUS_OK) {
+ /*
+ * bt_graph_add_source_filter_component_ports_connected_listener
+ * has already logged/appended an error cause.
+ */
+ goto error;
+ }
+
+ py_listener_id = PyLong_FromUnsignedLongLong(listener_id);
+ if (!py_listener_id) {
+ BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name,
+ "Failed to allocate one PyLong.");
+ goto error;
+ }
+
+ PyTuple_SET_ITEM(py_listener_ids, 0, py_listener_id);
+ py_listener_id = NULL;
+
+ /* source -> sink connection */
+ status = bt_graph_add_source_sink_component_ports_connected_listener(
+ graph, source_sink_component_ports_connected_listener,
+ graph_listener_removed, py_callable, &listener_id);
+ if (status != __BT_FUNC_STATUS_OK) {
+ /*
+ * bt_graph_add_source_sink_component_ports_connected_listener
+ * has already logged/appended an error cause.
+ */
+ goto error;
+ }
+
+ py_listener_id = PyLong_FromUnsignedLongLong(listener_id);
+ if (!py_listener_id) {
+ BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name,
+ "Failed to allocate one PyLong.");
+ goto error;
+ }
+
+ PyTuple_SET_ITEM(py_listener_ids, 1, py_listener_id);
+ py_listener_id = NULL;
+
+ /* filter -> filter connection */
+ status = bt_graph_add_filter_filter_component_ports_connected_listener(
+ graph, filter_filter_component_ports_connected_listener,
+ graph_listener_removed, py_callable, &listener_id);
+ if (status != __BT_FUNC_STATUS_OK) {
+ /*
+ * bt_graph_add_filter_filter_component_ports_connected_listener
+ * has already logged/appended an error cause.
+ */
+ goto error;
+ }
+
+ py_listener_id = PyLong_FromUnsignedLongLong(listener_id);
+ if (!py_listener_id) {
+ BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name,
+ "Failed to allocate one PyLong.");
+ goto error;
+ }
+
+ PyTuple_SET_ITEM(py_listener_ids, 2, py_listener_id);
+ py_listener_id = NULL;
+
+ /* filter -> sink connection */
+ status = bt_graph_add_filter_sink_component_ports_connected_listener(
+ graph, filter_sink_component_ports_connected_listener,
+ graph_listener_removed, py_callable, &listener_id);
+ if (status != __BT_FUNC_STATUS_OK) {
+ /*
+ * bt_graph_add_filter_sink_component_ports_connected_listener
+ * has already logged/appended an error cause.
+ */
+ goto error;
+ }
+
+ py_listener_id = PyLong_FromUnsignedLongLong(listener_id);
+ if (!py_listener_id) {
+ BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(module_name,
+ "Failed to allocate one PyLong.");
+ goto error;
+ }
+
+ PyTuple_SET_ITEM(py_listener_ids, 3, py_listener_id);
+ py_listener_id = NULL;
+
+ Py_INCREF(py_callable);
+ Py_INCREF(py_callable);
+ Py_INCREF(py_callable);
+ Py_INCREF(py_callable);
+
+ goto end;
+
+error:
+ Py_XDECREF(py_listener_ids);
+ py_listener_ids = Py_None;
+ Py_INCREF(py_listener_ids);
+
+end:
+
+ Py_XDECREF(py_listener_id);
+ return py_listener_ids;
+}
/* Helper functions for Python */
%{
-static PyObject *bt_bt2_get_user_component_from_user_msg_iter(
- bt_self_message_iterator *self_message_iterator)
-{
- bt_self_component *self_component = bt_self_message_iterator_borrow_component(self_message_iterator);
- PyObject *py_comp;
-
- BT_ASSERT(self_component);
- py_comp = bt_self_component_get_data(self_component);
- BT_ASSERT(py_comp);
-
- /* Return new reference */
- Py_INCREF(py_comp);
- return py_comp;
-}
-
-static inline
-PyObject *create_pylist_from_messages(bt_message_array_const messages,
- uint64_t message_count)
-{
- uint64_t i;
- PyObject *py_msg_list = PyList_New(message_count);
-
- BT_ASSERT(py_msg_list);
-
- for (i = 0; i < message_count; i++) {
- PyList_SET_ITEM(py_msg_list, i,
- SWIG_NewPointerObj(SWIG_as_voidptr(messages[i]),
- SWIGTYPE_p_bt_message, 0));
- }
-
- return py_msg_list;
-}
-
-static
-PyObject *get_msg_range_common(bt_message_iterator_next_status status,
- bt_message_array_const messages, uint64_t message_count)
-{
- PyObject *py_status;
- PyObject *py_return_tuple;
- PyObject *py_msg_list;
-
- py_return_tuple = PyTuple_New(2);
- BT_ASSERT(py_return_tuple);
-
- /* Set tuple[0], status. */
- py_status = SWIG_From_long_SS_long(status);
- PyTuple_SET_ITEM(py_return_tuple, 0, py_status);
-
- /* Set tuple[1], message list on success, None otherwise. */
- if (status == __BT_FUNC_STATUS_OK) {
- py_msg_list = create_pylist_from_messages(messages, message_count);
- } else {
- py_msg_list = Py_None;
- Py_INCREF(py_msg_list);
- }
-
- PyTuple_SET_ITEM(py_return_tuple, 1, py_msg_list);
-
- return py_return_tuple;
-}
-
-static PyObject *bt_bt2_self_component_port_input_get_msg_range(
- bt_self_component_port_input_message_iterator *iter)
-{
- bt_message_array_const messages;
- uint64_t message_count = 0;
- bt_message_iterator_next_status status;
-
- status = bt_self_component_port_input_message_iterator_next(iter,
- &messages, &message_count);
- return get_msg_range_common(status, messages, message_count);
-}
-
-static PyObject *bt_bt2_port_output_get_msg_range(
- bt_port_output_message_iterator *iter)
-{
- bt_message_array_const messages;
- uint64_t message_count = 0;
- bt_message_iterator_next_status status;
-
- status = bt_port_output_message_iterator_next(iter, &messages,
- &message_count);
- return get_msg_range_common(status, messages, message_count);
-}
+#include "native_bt_message_iterator.i.h"
%}
PyObject *bt_bt2_get_user_component_from_user_msg_iter(
--- /dev/null
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+static PyObject *bt_bt2_get_user_component_from_user_msg_iter(
+ bt_self_message_iterator *self_message_iterator)
+{
+ bt_self_component *self_component = bt_self_message_iterator_borrow_component(self_message_iterator);
+ PyObject *py_comp;
+
+ BT_ASSERT(self_component);
+ py_comp = bt_self_component_get_data(self_component);
+ BT_ASSERT(py_comp);
+
+ /* Return new reference */
+ Py_INCREF(py_comp);
+ return py_comp;
+}
+
+static inline
+PyObject *create_pylist_from_messages(bt_message_array_const messages,
+ uint64_t message_count)
+{
+ uint64_t i;
+ PyObject *py_msg_list = PyList_New(message_count);
+
+ BT_ASSERT(py_msg_list);
+
+ for (i = 0; i < message_count; i++) {
+ PyList_SET_ITEM(py_msg_list, i,
+ SWIG_NewPointerObj(SWIG_as_voidptr(messages[i]),
+ SWIGTYPE_p_bt_message, 0));
+ }
+
+ return py_msg_list;
+}
+
+static
+PyObject *get_msg_range_common(bt_message_iterator_next_status status,
+ bt_message_array_const messages, uint64_t message_count)
+{
+ PyObject *py_status;
+ PyObject *py_return_tuple;
+ PyObject *py_msg_list;
+
+ py_return_tuple = PyTuple_New(2);
+ BT_ASSERT(py_return_tuple);
+
+ /* Set tuple[0], status. */
+ py_status = SWIG_From_long_SS_long(status);
+ PyTuple_SET_ITEM(py_return_tuple, 0, py_status);
+
+ /* Set tuple[1], message list on success, None otherwise. */
+ if (status == __BT_FUNC_STATUS_OK) {
+ py_msg_list = create_pylist_from_messages(messages, message_count);
+ } else {
+ py_msg_list = Py_None;
+ Py_INCREF(py_msg_list);
+ }
+
+ PyTuple_SET_ITEM(py_return_tuple, 1, py_msg_list);
+
+ return py_return_tuple;
+}
+
+static PyObject *bt_bt2_self_component_port_input_get_msg_range(
+ bt_self_component_port_input_message_iterator *iter)
+{
+ bt_message_array_const messages;
+ uint64_t message_count = 0;
+ bt_message_iterator_next_status status;
+
+ status = bt_self_component_port_input_message_iterator_next(iter,
+ &messages, &message_count);
+ return get_msg_range_common(status, messages, message_count);
+}
+
+static PyObject *bt_bt2_port_output_get_msg_range(
+ bt_port_output_message_iterator *iter)
+{
+ bt_message_array_const messages;
+ uint64_t message_count = 0;
+ bt_message_iterator_next_status status;
+
+ status = bt_port_output_message_iterator_next(iter, &messages,
+ &message_count);
+ return get_msg_range_common(status, messages, message_count);
+}
/* Helpers */
+%{
+#include "native_bt_plugin.i.h"
+%}
+
bt_property_availability bt_bt2_plugin_get_version(
const bt_plugin *plugin, unsigned int *major,
unsigned int *minor, unsigned int *patch, const char **extra);
bt_plugin_find_all_from_dir_status bt_bt2_plugin_find_all_from_dir(
const char *path, bt_bool recurse, bt_bool fail_on_load_error,
const bt_plugin_set **plugin_set);
-
-%{
-/*
- * Those bt_bt2_*() functions below ensure that when the API function
- * fails, the output parameter is set to `NULL`. This is necessary
- * because the epilogue of the `something **OUT` typemap will use that
- * value to make a Python object. We can't rely on the initial value of
- * `*OUT`; it could point to unreadable memory.
- */
-
-bt_property_availability bt_bt2_plugin_get_version(
- const bt_plugin *plugin, unsigned int *major,
- unsigned int *minor, unsigned int *patch, const char **extra)
-{
- bt_property_availability ret;
-
- ret = bt_plugin_get_version(plugin, major, minor, patch, extra);
-
- if (ret == BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE) {
- *extra = NULL;
- }
-
- return ret;
-}
-
-bt_plugin_find_status bt_bt2_plugin_find(const char *plugin_name,
- bt_bool find_in_std_env_var, bt_bool find_in_user_dir,
- bt_bool find_in_sys_dir, bt_bool find_in_static,
- bt_bool fail_on_load_error, const bt_plugin **plugin)
-{
- bt_plugin_find_status status;
-
- status = bt_plugin_find(plugin_name, find_in_std_env_var,
- find_in_user_dir, find_in_sys_dir, find_in_static,
- fail_on_load_error, plugin);
- if (status != __BT_FUNC_STATUS_OK) {
- *plugin = NULL;
- }
-
- return status;
-}
-
-bt_plugin_find_all_status bt_bt2_plugin_find_all(bt_bool find_in_std_env_var,
- bt_bool find_in_user_dir, bt_bool find_in_sys_dir,
- bt_bool find_in_static, bt_bool fail_on_load_error,
- const bt_plugin_set **plugin_set)
-{
- bt_plugin_find_all_status status;
-
- status = bt_plugin_find_all(find_in_std_env_var,
- find_in_user_dir, find_in_sys_dir, find_in_static,
- fail_on_load_error, plugin_set);
- if (status != __BT_FUNC_STATUS_OK) {
- *plugin_set = NULL;
- }
-
- return status;
-}
-
-bt_plugin_find_all_from_file_status bt_bt2_plugin_find_all_from_file(
- const char *path, bt_bool fail_on_load_error,
- const bt_plugin_set **plugin_set)
-{
- bt_plugin_find_all_from_file_status status;
-
- status = bt_plugin_find_all_from_file(path, fail_on_load_error,
- plugin_set);
- if (status != __BT_FUNC_STATUS_OK) {
- *plugin_set = NULL;
- }
-
- return status;
-}
-
-bt_plugin_find_all_from_dir_status bt_bt2_plugin_find_all_from_dir(
- const char *path, bt_bool recurse, bt_bool fail_on_load_error,
- const bt_plugin_set **plugin_set)
-{
- bt_plugin_find_all_from_dir_status status;
-
- status = bt_plugin_find_all_from_dir(path, recurse, fail_on_load_error,
- plugin_set);
- if (status != __BT_FUNC_STATUS_OK) {
- *plugin_set = NULL;
- }
-
- return status;
-}
-%}
--- /dev/null
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/*
+ * Those bt_bt2_*() functions below ensure that when the API function
+ * fails, the output parameter is set to `NULL`. This is necessary
+ * because the epilogue of the `something **OUT` typemap will use that
+ * value to make a Python object. We can't rely on the initial value of
+ * `*OUT`; it could point to unreadable memory.
+ */
+
+bt_property_availability bt_bt2_plugin_get_version(
+ const bt_plugin *plugin, unsigned int *major,
+ unsigned int *minor, unsigned int *patch, const char **extra)
+{
+ bt_property_availability ret;
+
+ ret = bt_plugin_get_version(plugin, major, minor, patch, extra);
+
+ if (ret == BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE) {
+ *extra = NULL;
+ }
+
+ return ret;
+}
+
+bt_plugin_find_status bt_bt2_plugin_find(const char *plugin_name,
+ bt_bool find_in_std_env_var, bt_bool find_in_user_dir,
+ bt_bool find_in_sys_dir, bt_bool find_in_static,
+ bt_bool fail_on_load_error, const bt_plugin **plugin)
+{
+ bt_plugin_find_status status;
+
+ status = bt_plugin_find(plugin_name, find_in_std_env_var,
+ find_in_user_dir, find_in_sys_dir, find_in_static,
+ fail_on_load_error, plugin);
+ if (status != __BT_FUNC_STATUS_OK) {
+ *plugin = NULL;
+ }
+
+ return status;
+}
+
+bt_plugin_find_all_status bt_bt2_plugin_find_all(bt_bool find_in_std_env_var,
+ bt_bool find_in_user_dir, bt_bool find_in_sys_dir,
+ bt_bool find_in_static, bt_bool fail_on_load_error,
+ const bt_plugin_set **plugin_set)
+{
+ bt_plugin_find_all_status status;
+
+ status = bt_plugin_find_all(find_in_std_env_var,
+ find_in_user_dir, find_in_sys_dir, find_in_static,
+ fail_on_load_error, plugin_set);
+ if (status != __BT_FUNC_STATUS_OK) {
+ *plugin_set = NULL;
+ }
+
+ return status;
+}
+
+bt_plugin_find_all_from_file_status bt_bt2_plugin_find_all_from_file(
+ const char *path, bt_bool fail_on_load_error,
+ const bt_plugin_set **plugin_set)
+{
+ bt_plugin_find_all_from_file_status status;
+
+ status = bt_plugin_find_all_from_file(path, fail_on_load_error,
+ plugin_set);
+ if (status != __BT_FUNC_STATUS_OK) {
+ *plugin_set = NULL;
+ }
+
+ return status;
+}
+
+bt_plugin_find_all_from_dir_status bt_bt2_plugin_find_all_from_dir(
+ const char *path, bt_bool recurse, bt_bool fail_on_load_error,
+ const bt_plugin_set **plugin_set)
+{
+ bt_plugin_find_all_from_dir_status status;
+
+ status = bt_plugin_find_all_from_dir(path, recurse, fail_on_load_error,
+ plugin_set);
+ if (status != __BT_FUNC_STATUS_OK) {
+ *plugin_set = NULL;
+ }
+
+ return status;
+}
%include <babeltrace2/trace-ir/trace.h>
%{
-static void
-trace_destroyed_listener(const bt_trace *trace, void *py_callable)
-{
- PyObject *py_trace_ptr = NULL;
- PyObject *py_res = NULL;
-
- py_trace_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(trace),
- SWIGTYPE_p_bt_trace, 0);
- if (!py_trace_ptr) {
- BT_LOGF_STR("Failed to create a SWIG pointer object.");
- abort();
- }
-
- py_res = PyObject_CallFunction(py_callable, "(O)", py_trace_ptr);
- if (py_res) {
- BT_ASSERT(py_res == Py_None);
- } else {
- loge_exception("Trace's destruction listener (Python)",
- BT_LOG_OUTPUT_LEVEL);
- }
-
- Py_DECREF(py_trace_ptr);
- Py_XDECREF(py_res);
-}
-
-int bt_bt2_trace_add_destruction_listener(bt_trace *trace,
- PyObject *py_callable, bt_listener_id *id)
-{
- bt_trace_add_listener_status status;
-
- BT_ASSERT(trace);
- BT_ASSERT(py_callable);
- status = bt_trace_add_destruction_listener(
- trace, trace_destroyed_listener, py_callable, id);
- if (status == __BT_FUNC_STATUS_OK) {
- Py_INCREF(py_callable);
- }
-
- return status;
-}
+#include "native_bt_trace.i.h"
%}
int bt_bt2_trace_add_destruction_listener(bt_trace *trace,
--- /dev/null
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Philippe Proulx <pproulx@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+static void
+trace_destroyed_listener(const bt_trace *trace, void *py_callable)
+{
+ PyObject *py_trace_ptr = NULL;
+ PyObject *py_res = NULL;
+
+ py_trace_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(trace),
+ SWIGTYPE_p_bt_trace, 0);
+ if (!py_trace_ptr) {
+ BT_LOGF_STR("Failed to create a SWIG pointer object.");
+ abort();
+ }
+
+ py_res = PyObject_CallFunction(py_callable, "(O)", py_trace_ptr);
+ if (py_res) {
+ BT_ASSERT(py_res == Py_None);
+ } else {
+ loge_exception("Trace's destruction listener (Python)",
+ BT_LOG_OUTPUT_LEVEL);
+ }
+
+ Py_DECREF(py_trace_ptr);
+ Py_XDECREF(py_res);
+}
+
+static
+int bt_bt2_trace_add_destruction_listener(bt_trace *trace,
+ PyObject *py_callable, bt_listener_id *id)
+{
+ bt_trace_add_listener_status status;
+
+ BT_ASSERT(trace);
+ BT_ASSERT(py_callable);
+ status = bt_trace_add_destruction_listener(
+ trace, trace_destroyed_listener, py_callable, id);
+ if (status == __BT_FUNC_STATUS_OK) {
+ Py_INCREF(py_callable);
+ }
+
+ return status;
+}
/* Helper functions for Python */
%{
-static void
-trace_class_destroyed_listener(const bt_trace_class *trace_class, void *py_callable)
-{
- PyObject *py_trace_class_ptr = NULL;
- PyObject *py_res = NULL;
-
- py_trace_class_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(trace_class),
- SWIGTYPE_p_bt_trace_class, 0);
- if (!py_trace_class_ptr) {
- BT_LOGF_STR("Failed to create a SWIG pointer object.");
- abort();
- }
-
- py_res = PyObject_CallFunction(py_callable, "(O)", py_trace_class_ptr);
- if (py_res) {
- BT_ASSERT(py_res == Py_None);
- } else {
- loge_exception("Trace class's destruction listener (Python)",
- BT_LOG_OUTPUT_LEVEL);
- }
-
- Py_DECREF(py_trace_class_ptr);
- Py_XDECREF(py_res);
-}
-
-int bt_bt2_trace_class_add_destruction_listener(
- bt_trace_class *trace_class, PyObject *py_callable,
- bt_listener_id *id)
-{
- bt_trace_class_add_listener_status status;
-
- BT_ASSERT(trace_class);
- BT_ASSERT(py_callable);
- status = bt_trace_class_add_destruction_listener(
- trace_class, trace_class_destroyed_listener, py_callable, id);
- if (status == __BT_FUNC_STATUS_OK) {
- Py_INCREF(py_callable);
- }
-
- return status;
-}
+#include "native_bt_trace_class.i.h"
%}
int bt_bt2_trace_class_add_destruction_listener(
--- /dev/null
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Philippe Proulx <pproulx@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+static void
+trace_class_destroyed_listener(const bt_trace_class *trace_class, void *py_callable)
+{
+ PyObject *py_trace_class_ptr = NULL;
+ PyObject *py_res = NULL;
+
+ py_trace_class_ptr = SWIG_NewPointerObj(SWIG_as_voidptr(trace_class),
+ SWIGTYPE_p_bt_trace_class, 0);
+ if (!py_trace_class_ptr) {
+ BT_LOGF_STR("Failed to create a SWIG pointer object.");
+ abort();
+ }
+
+ py_res = PyObject_CallFunction(py_callable, "(O)", py_trace_class_ptr);
+ if (py_res) {
+ BT_ASSERT(py_res == Py_None);
+ } else {
+ loge_exception("Trace class's destruction listener (Python)",
+ BT_LOG_OUTPUT_LEVEL);
+ }
+
+ Py_DECREF(py_trace_class_ptr);
+ Py_XDECREF(py_res);
+}
+
+static
+int bt_bt2_trace_class_add_destruction_listener(
+ bt_trace_class *trace_class, PyObject *py_callable,
+ bt_listener_id *id)
+{
+ bt_trace_class_add_listener_status status;
+
+ BT_ASSERT(trace_class);
+ BT_ASSERT(py_callable);
+ status = bt_trace_class_add_destruction_listener(
+ trace_class, trace_class_destroyed_listener, py_callable, id);
+ if (status == __BT_FUNC_STATUS_OK) {
+ Py_INCREF(py_callable);
+ }
+
+ return status;
+}
%include <babeltrace2/value.h>
%{
-struct bt_value_map_get_keys_data {
- struct bt_value *keys;
-};
-
-static int bt_value_map_get_keys_cb(const char *key, const struct bt_value *object, void *data)
-{
- bt_value_array_append_element_status status;
- struct bt_value_map_get_keys_data *priv_data = data;
-
- status = bt_value_array_append_string_element(priv_data->keys, key);
- if (status != __BT_FUNC_STATUS_OK) {
- return BT_FALSE;
- }
-
- return BT_TRUE;
-}
-
-static struct bt_value *bt_value_map_get_keys(const struct bt_value *map_obj)
-{
- bt_value_map_foreach_entry_const_status status;
- struct bt_value_map_get_keys_data data;
-
- data.keys = bt_value_array_create();
- if (!data.keys) {
- return NULL;
- }
-
- status = bt_value_map_foreach_entry_const(map_obj, bt_value_map_get_keys_cb,
- &data);
- if (status != __BT_FUNC_STATUS_OK) {
- goto error;
- }
-
- goto end;
-
-error:
- if (data.keys) {
- BT_VALUE_PUT_REF_AND_RESET(data.keys);
- }
-
-end:
- return data.keys;
-}
+#include "native_bt_value.i.h"
%}
struct bt_value *bt_value_map_get_keys(const struct bt_value *map_obj);
--- /dev/null
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Philippe Proulx <pproulx@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+struct bt_value_map_get_keys_data {
+ struct bt_value *keys;
+};
+
+static int bt_value_map_get_keys_cb(const char *key, const struct bt_value *object, void *data)
+{
+ bt_value_array_append_element_status status;
+ struct bt_value_map_get_keys_data *priv_data = data;
+
+ status = bt_value_array_append_string_element(priv_data->keys, key);
+ if (status != __BT_FUNC_STATUS_OK) {
+ return BT_FALSE;
+ }
+
+ return BT_TRUE;
+}
+
+static struct bt_value *bt_value_map_get_keys(const struct bt_value *map_obj)
+{
+ bt_value_map_foreach_entry_const_status status;
+ struct bt_value_map_get_keys_data data;
+
+ data.keys = bt_value_array_create();
+ if (!data.keys) {
+ return NULL;
+ }
+
+ status = bt_value_map_foreach_entry_const(map_obj, bt_value_map_get_keys_cb,
+ &data);
+ if (status != __BT_FUNC_STATUS_OK) {
+ goto error;
+ }
+
+ goto end;
+
+error:
+ if (data.keys) {
+ BT_VALUE_PUT_REF_AND_RESET(data.keys);
+ }
+
+end:
+ return data.keys;
+}
projects / babeltrace.git / commitdiff
