#include <babeltrace/plugin/component-factory.h>
#include <babeltrace/plugin/component-factory-internal.h>
+#include <babeltrace/plugin/component-class-internal.h>
+#include <babeltrace/plugin/source-internal.h>
+#include <babeltrace/plugin/sink-internal.h>
#include <babeltrace/babeltrace-internal.h>
#include <babeltrace/compiler.h>
#include <babeltrace/ref.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <gmodule.h>
+#include <stdbool.h>
#define NATIVE_PLUGIN_SUFFIX ".so"
#define NATIVE_PLUGIN_SUFFIX_LEN sizeof(NATIVE_PLUGIN_SUFFIX)
size_t path_len;
GModule *module;
struct bt_plugin *plugin;
+ bool is_libtool_wrapper = false, is_shared_object = false;
if (!factory || !path) {
ret = BT_COMPONENT_FACTORY_STATUS_INVAL;
* Check if the file ends with a known plugin file type suffix (i.e. .so
* or .la on Linux).
*/
- if (strncmp(NATIVE_PLUGIN_SUFFIX,
- path + path_len - NATIVE_PLUGIN_SUFFIX_LEN,
- NATIVE_PLUGIN_SUFFIX_LEN) &&
- strncmp(LIBTOOL_PLUGIN_SUFFIX,
+ is_libtool_wrapper = !strncmp(LIBTOOL_PLUGIN_SUFFIX,
path + path_len - LIBTOOL_PLUGIN_SUFFIX_LEN,
- LIBTOOL_PLUGIN_SUFFIX_LEN)) {
+ LIBTOOL_PLUGIN_SUFFIX_LEN);
+ is_shared_object = !strncmp(NATIVE_PLUGIN_SUFFIX,
+ path + path_len - NATIVE_PLUGIN_SUFFIX_LEN,
+ NATIVE_PLUGIN_SUFFIX_LEN);
+ if (!is_shared_object && !is_libtool_wrapper) {
/* Name indicates that this is not a plugin file. */
ret = BT_COMPONENT_FACTORY_STATUS_INVAL;
goto end;
}
/* Load plugin and make sure it defines the required entry points */
- plugin = bt_plugin_create(module);
+ plugin = bt_plugin_create(module, path);
if (!plugin) {
ret = BT_COMPONENT_FACTORY_STATUS_INVAL_PLUGIN;
if (!g_module_close(module)) {
goto end;
}
+ factory->current_plugin = plugin;
component_status = bt_plugin_register_component_classes(plugin,
factory);
+ factory->current_plugin = NULL;
if (component_status != BT_COMPONENT_STATUS_OK) {
switch (component_status) {
case BT_COMPONENT_STATUS_NOMEM:
BT_PUT(plugin);
goto end;
}
- g_ptr_array_add(factory->plugins, plugin);
end:
return ret;
}
assert(obj);
factory = container_of(obj, struct bt_component_factory, base);
- if (factory->plugins) {
- g_ptr_array_free(factory->plugins, TRUE);
- }
- if (factory->components) {
- g_ptr_array_free(factory->components, TRUE);
+ if (factory->component_classes) {
+ g_ptr_array_free(factory->component_classes, TRUE);
}
g_free(factory);
}
}
bt_object_init(factory, bt_component_factory_destroy);
- factory->plugins = g_ptr_array_new_with_free_func(
- (GDestroyNotify) bt_put);
- if (!factory->plugins) {
- goto error;
- }
- factory->components = g_ptr_array_new_with_free_func(
+ factory->component_classes = g_ptr_array_new_with_free_func(
(GDestroyNotify) bt_put);
- if (!factory->components) {
+ if (!factory->component_classes) {
goto error;
}
end:
return factory;
}
+int bt_component_factory_get_component_class_count(
+ struct bt_component_factory *factory)
+{
+ return factory ? factory->component_classes->len : -1;
+}
+
+struct bt_component_class *bt_component_factory_get_component_class_index(
+ struct bt_component_factory *factory, int index)
+{
+ struct bt_component_class *component_class = NULL;
+
+ if (!factory || index < 0 || index >= factory->component_classes->len) {
+ goto end;
+ }
+
+ component_class = bt_get(g_ptr_array_index(
+ factory->component_classes, index));
+end:
+ return component_class;
+}
+
+struct bt_component_class *bt_component_factory_get_component_class(
+ struct bt_component_factory *factory,
+ const char *plugin_name, enum bt_component_type type,
+ const char *component_name)
+{
+ size_t i;
+ struct bt_component_class *component_class = NULL;
+
+ if (!factory || (!plugin_name && !component_name &&
+ type == BT_COMPONENT_TYPE_UNKNOWN)) {
+ /* At least one criterion must be provided. */
+ goto no_match;
+ }
+
+ for (i = 0; i < factory->component_classes->len; i++) {
+ struct bt_plugin *plugin = NULL;
+
+ component_class = g_ptr_array_index(factory->component_classes,
+ i);
+ plugin = bt_component_class_get_plugin(component_class);
+ assert(plugin);
+
+ if (type != BT_COMPONENT_TYPE_UNKNOWN) {
+ if (type != bt_component_class_get_type(
+ component_class)) {
+ continue;
+ }
+ }
+
+ if (plugin_name) {
+ const char *cur_plugin_name = bt_plugin_get_name(
+ plugin);
+
+ assert(cur_plugin_name);
+ if (strcmp(plugin_name, cur_plugin_name)) {
+ continue;
+ }
+ }
+
+ if (component_name) {
+ const char *cur_cc_name = bt_component_class_get_name(
+ component_class);
+
+ assert(cur_cc_name);
+ if (strcmp(component_name, cur_cc_name)) {
+ continue;
+ }
+ }
+
+ /* All criteria met. */
+ goto match;
+ }
+
+no_match:
+ return NULL;
+match:
+ return bt_get(component_class);
+}
+
enum bt_component_factory_status bt_component_factory_load(
struct bt_component_factory *factory, const char *path)
{
end:
return ret;
}
+
+static
+enum bt_component_factory_status
+add_component_class(struct bt_component_factory *factory, const char *name,
+ const char *description, bt_component_init_cb init,
+ enum bt_component_type type)
+{
+ struct bt_component_class *class;
+ enum bt_component_factory_status ret = BT_COMPONENT_FACTORY_STATUS_OK;
+
+ if (!factory || !name || !init) {
+ ret = BT_COMPONENT_FACTORY_STATUS_INVAL;
+ goto end;
+ }
+
+ class = bt_component_class_create(type, name, description,
+ factory->current_plugin);
+ g_ptr_array_add(factory->component_classes, class);
+end:
+ return ret;
+}
+
+enum bt_component_factory_status
+bt_component_factory_register_source_component_class(
+ struct bt_component_factory *factory, const char *name,
+ const char *description, bt_component_init_cb init)
+{
+ return add_component_class(factory, name, description, init,
+ BT_COMPONENT_TYPE_SOURCE);
+}
+
+enum bt_component_factory_status
+bt_component_factory_register_sink_component_class(
+ struct bt_component_factory *factory, const char *name,
+ const char *description, bt_component_init_cb init)
+{
+ return add_component_class(factory, name, description, init,
+ BT_COMPONENT_TYPE_SINK);
+}
projects / babeltrace.git / blobdiff