+++ /dev/null
-/*
- * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
- * Copyright 2014 Jérémie Galarneau <jeremie.galarneau@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.
- */
-
-#define BT_LOG_TAG "TRACE"
-#include <babeltrace2/lib-logging-internal.h>
-
-#include <babeltrace2/assert-pre-internal.h>
-#include <babeltrace2/trace-ir/trace-class.h>
-#include <babeltrace2/trace-ir/trace-class-const.h>
-#include <babeltrace2/trace-ir/trace-internal.h>
-#include <babeltrace2/trace-ir/clock-class-internal.h>
-#include <babeltrace2/trace-ir/stream-internal.h>
-#include <babeltrace2/trace-ir/stream-class-internal.h>
-#include <babeltrace2/trace-ir/event-internal.h>
-#include <babeltrace2/trace-ir/event-class.h>
-#include <babeltrace2/trace-ir/event-class-internal.h>
-#include <babeltrace2/ctf-writer/functor-internal.h>
-#include <babeltrace2/ctf-writer/clock-internal.h>
-#include <babeltrace2/trace-ir/field-wrapper-internal.h>
-#include <babeltrace2/trace-ir/field-class-internal.h>
-#include <babeltrace2/trace-ir/attributes-internal.h>
-#include <babeltrace2/trace-ir/utils-internal.h>
-#include <babeltrace2/trace-ir/resolve-field-path-internal.h>
-#include <babeltrace2/compiler-internal.h>
-#include <babeltrace2/value.h>
-#include <babeltrace2/value-const.h>
-#include <babeltrace2/value-internal.h>
-#include <babeltrace2/types.h>
-#include <babeltrace2/endian-internal.h>
-#include <babeltrace2/assert-internal.h>
-#include <babeltrace2/compat/glib-internal.h>
-#include <inttypes.h>
-#include <stdint.h>
-#include <string.h>
-#include <stdlib.h>
-
-struct bt_trace_class_destruction_listener_elem {
- bt_trace_class_destruction_listener_func func;
- void *data;
-};
-
-#define BT_ASSERT_PRE_TRACE_CLASS_HOT(_tc) \
- BT_ASSERT_PRE_HOT((_tc), "Trace class", ": %!+T", (_tc))
-
-static
-void destroy_trace_class(struct bt_object *obj)
-{
- struct bt_trace_class *tc = (void *) obj;
-
- BT_LIB_LOGD("Destroying trace class object: %!+T", tc);
- /*
- * Call destruction listener functions so that everything else
- * still exists in the trace class.
- */
- if (tc->destruction_listeners) {
- uint64_t i;
- BT_LIB_LOGV("Calling trace class destruction listener(s): %!+T", tc);
-
- /*
- * The trace class' reference count is 0 if we're here. Increment
- * it to avoid a double-destroy (possibly infinitely recursive).
- * This could happen for example if a destruction listener did
- * bt_object_get_ref() (or anything that causes
- * bt_object_get_ref() to be called) on the trace class (ref.
- * count goes from 0 to 1), and then bt_object_put_ref(): the
- * reference count would go from 1 to 0 again and this function
- * would be called again.
- */
- tc->base.ref_count++;
-
- /* Call all the trace class destruction listeners */
- for (i = 0; i < tc->destruction_listeners->len; i++) {
- struct bt_trace_class_destruction_listener_elem elem =
- g_array_index(tc->destruction_listeners,
- struct bt_trace_class_destruction_listener_elem, i);
-
- if (elem.func) {
- elem.func(tc, elem.data);
- }
-
- /*
- * The destruction listener should not have kept a
- * reference to the trace class.
- */
- BT_ASSERT_PRE(tc->base.ref_count == 1, "Destruction listener kept a reference to the trace class being destroyed: %![tc-]+T", tc);
- }
- g_array_free(tc->destruction_listeners, TRUE);
- tc->destruction_listeners = NULL;
- }
-
- if (tc->environment) {
- BT_LOGD_STR("Destroying environment attributes.");
- bt_attributes_destroy(tc->environment);
- tc->environment = NULL;
- }
-
- if (tc->name.str) {
- g_string_free(tc->name.str, TRUE);
- tc->name.str = NULL;
- tc->name.value = NULL;
- }
-
- if (tc->stream_classes) {
- BT_LOGD_STR("Destroying stream classes.");
- g_ptr_array_free(tc->stream_classes, TRUE);
- tc->stream_classes = NULL;
- }
-
- g_free(tc);
-}
-
-struct bt_trace_class *bt_trace_class_create(bt_self_component *self_comp)
-{
- struct bt_trace_class *tc = NULL;
-
- BT_ASSERT_PRE_NON_NULL(self_comp, "Self component");
- BT_LOGD_STR("Creating default trace class object.");
- tc = g_new0(struct bt_trace_class, 1);
- if (!tc) {
- BT_LOGE_STR("Failed to allocate one trace class.");
- goto error;
- }
-
- bt_object_init_shared_with_parent(&tc->base, destroy_trace_class);
-
- tc->stream_classes = g_ptr_array_new_with_free_func(
- (GDestroyNotify) bt_object_try_spec_release);
- if (!tc->stream_classes) {
- BT_LOGE_STR("Failed to allocate one GPtrArray.");
- goto error;
- }
-
- tc->name.str = g_string_new(NULL);
- if (!tc->name.str) {
- BT_LOGE_STR("Failed to allocate one GString.");
- goto error;
- }
-
- tc->environment = bt_attributes_create();
- if (!tc->environment) {
- BT_LOGE_STR("Cannot create empty attributes object.");
- goto error;
- }
-
- tc->destruction_listeners = g_array_new(FALSE, TRUE,
- sizeof(struct bt_trace_class_destruction_listener_elem));
- if (!tc->destruction_listeners) {
- BT_LOGE_STR("Failed to allocate one GArray.");
- goto error;
- }
-
- tc->assigns_automatic_stream_class_id = true;
- BT_LIB_LOGD("Created trace class object: %!+T", tc);
- goto end;
-
-error:
- BT_OBJECT_PUT_REF_AND_RESET(tc);
-
-end:
- return tc;
-}
-
-const char *bt_trace_class_get_name(const struct bt_trace_class *tc)
-{
- BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
- return tc->name.value;
-}
-
-enum bt_trace_class_status bt_trace_class_set_name(
- struct bt_trace_class *tc, const char *name)
-{
- BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
- BT_ASSERT_PRE_NON_NULL(name, "Name");
- BT_ASSERT_PRE_TRACE_CLASS_HOT(tc);
- g_string_assign(tc->name.str, name);
- tc->name.value = tc->name.str->str;
- BT_LIB_LOGV("Set trace class's name: %!+T", tc);
- return BT_TRACE_CLASS_STATUS_OK;
-}
-
-bt_uuid bt_trace_class_get_uuid(const struct bt_trace_class *tc)
-{
- BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
- return tc->uuid.value;
-}
-
-void bt_trace_class_set_uuid(struct bt_trace_class *tc, bt_uuid uuid)
-{
- BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
- BT_ASSERT_PRE_NON_NULL(uuid, "UUID");
- BT_ASSERT_PRE_TRACE_CLASS_HOT(tc);
- memcpy(tc->uuid.uuid, uuid, BABELTRACE_UUID_LEN);
- tc->uuid.value = tc->uuid.uuid;
- BT_LIB_LOGV("Set trace class's UUID: %!+T", tc);
-}
-
-enum bt_trace_class_status bt_trace_class_add_destruction_listener(
- const struct bt_trace_class *_tc,
- bt_trace_class_destruction_listener_func listener,
- void *data, uint64_t *listener_id)
-{
- struct bt_trace_class *tc = (void *) _tc;
- uint64_t i;
- struct bt_trace_class_destruction_listener_elem new_elem = {
- .func = listener,
- .data = data,
- };
-
- BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
- BT_ASSERT_PRE_NON_NULL(listener, "Listener");
-
- /* Find the next available spot */
- for (i = 0; i < tc->destruction_listeners->len; i++) {
- struct bt_trace_class_destruction_listener_elem elem =
- g_array_index(tc->destruction_listeners,
- struct bt_trace_class_destruction_listener_elem, i);
-
- if (!elem.func) {
- break;
- }
- }
-
- if (i == tc->destruction_listeners->len) {
- g_array_append_val(tc->destruction_listeners, new_elem);
- } else {
- g_array_insert_val(tc->destruction_listeners, i, new_elem);
- }
-
- if (listener_id) {
- *listener_id = i;
- }
-
- BT_LIB_LOGV("Added trace class destruction listener: %![tc-]+T, "
- "listener-id=%" PRIu64, tc, i);
- return BT_TRACE_CLASS_STATUS_OK;
-}
-
-BT_ASSERT_PRE_FUNC
-static
-bool has_listener_id(const struct bt_trace_class *tc, uint64_t listener_id)
-{
- BT_ASSERT(listener_id < tc->destruction_listeners->len);
- return (&g_array_index(tc->destruction_listeners,
- struct bt_trace_class_destruction_listener_elem,
- listener_id))->func != NULL;
-}
-
-enum bt_trace_class_status bt_trace_class_remove_destruction_listener(
- const struct bt_trace_class *_tc, uint64_t listener_id)
-{
- struct bt_trace_class *tc = (void *) _tc;
- struct bt_trace_class_destruction_listener_elem *elem;
-
- BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
- BT_ASSERT_PRE(has_listener_id(tc, listener_id),
- "Trace class has no such trace class destruction listener ID: "
- "%![tc-]+T, %" PRIu64, tc, listener_id);
- elem = &g_array_index(tc->destruction_listeners,
- struct bt_trace_class_destruction_listener_elem,
- listener_id);
- BT_ASSERT(elem->func);
-
- elem->func = NULL;
- elem->data = NULL;
- BT_LIB_LOGV("Removed trace class destruction listener: "
- "%![tc-]+T, listener-id=%" PRIu64,
- tc, listener_id);
- return BT_TRACE_CLASS_STATUS_OK;
-}
-
-BT_ASSERT_FUNC
-static
-bool trace_has_environment_entry(const struct bt_trace_class *tc, const char *name)
-{
- BT_ASSERT(tc);
-
- return bt_attributes_borrow_field_value_by_name(
- tc->environment, name) != NULL;
-}
-
-static
-enum bt_trace_class_status set_environment_entry(struct bt_trace_class *tc,
- const char *name, struct bt_value *value)
-{
- int ret;
-
- BT_ASSERT(tc);
- BT_ASSERT(name);
- BT_ASSERT(value);
- BT_ASSERT_PRE(!tc->frozen ||
- !trace_has_environment_entry(tc, name),
- "Trace class is frozen: cannot replace environment entry: "
- "%![tc-]+T, entry-name=\"%s\"", tc, name);
- ret = bt_attributes_set_field_value(tc->environment, name,
- value);
- if (ret) {
- ret = BT_TRACE_CLASS_STATUS_NOMEM;
- BT_LIB_LOGE("Cannot set trace class's environment entry: "
- "%![tc-]+T, entry-name=\"%s\"", tc, name);
- } else {
- bt_value_freeze(value);
- BT_LIB_LOGV("Set trace class's environment entry: "
- "%![tc-]+T, entry-name=\"%s\"", tc, name);
- }
-
- return ret;
-}
-
-enum bt_trace_class_status bt_trace_class_set_environment_entry_string(
- struct bt_trace_class *tc, const char *name, const char *value)
-{
- int ret;
- struct bt_value *value_obj;
- BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
- BT_ASSERT_PRE_NON_NULL(name, "Name");
- BT_ASSERT_PRE_NON_NULL(value, "Value");
- value_obj = bt_value_string_create_init(value);
- if (!value_obj) {
- BT_LOGE_STR("Cannot create a string value object.");
- ret = -1;
- goto end;
- }
-
- /* set_environment_entry() logs errors */
- ret = set_environment_entry(tc, name, value_obj);
-
-end:
- bt_object_put_ref(value_obj);
- return ret;
-}
-
-enum bt_trace_class_status bt_trace_class_set_environment_entry_integer(
- struct bt_trace_class *tc, const char *name, int64_t value)
-{
- int ret;
- struct bt_value *value_obj;
- BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
- BT_ASSERT_PRE_NON_NULL(name, "Name");
- value_obj = bt_value_signed_integer_create_init(value);
- if (!value_obj) {
- BT_LOGE_STR("Cannot create an integer value object.");
- ret = BT_TRACE_CLASS_STATUS_NOMEM;
- goto end;
- }
-
- /* set_environment_entry() logs errors */
- ret = set_environment_entry(tc, name, value_obj);
-
-end:
- bt_object_put_ref(value_obj);
- return ret;
-}
-
-uint64_t bt_trace_class_get_environment_entry_count(const struct bt_trace_class *tc)
-{
- int64_t ret;
-
- BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
- ret = bt_attributes_get_count(tc->environment);
- BT_ASSERT(ret >= 0);
- return (uint64_t) ret;
-}
-
-void bt_trace_class_borrow_environment_entry_by_index_const(
- const struct bt_trace_class *tc, uint64_t index,
- const char **name, const struct bt_value **value)
-{
- BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
- BT_ASSERT_PRE_NON_NULL(name, "Name");
- BT_ASSERT_PRE_NON_NULL(value, "Value");
- BT_ASSERT_PRE_VALID_INDEX(index,
- bt_attributes_get_count(tc->environment));
- *value = bt_attributes_borrow_field_value(tc->environment, index);
- BT_ASSERT(*value);
- *name = bt_attributes_get_field_name(tc->environment, index);
- BT_ASSERT(*name);
-}
-
-const struct bt_value *bt_trace_class_borrow_environment_entry_value_by_name_const(
- const struct bt_trace_class *tc, const char *name)
-{
- BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
- BT_ASSERT_PRE_NON_NULL(name, "Name");
- return bt_attributes_borrow_field_value_by_name(tc->environment,
- name);
-}
-
-uint64_t bt_trace_class_get_stream_class_count(const struct bt_trace_class *tc)
-{
- BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
- return (uint64_t) tc->stream_classes->len;
-}
-
-struct bt_stream_class *bt_trace_class_borrow_stream_class_by_index(
- struct bt_trace_class *tc, uint64_t index)
-{
- BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
- BT_ASSERT_PRE_VALID_INDEX(index, tc->stream_classes->len);
- return g_ptr_array_index(tc->stream_classes, index);
-}
-
-const struct bt_stream_class *
-bt_trace_class_borrow_stream_class_by_index_const(
- const struct bt_trace_class *tc, uint64_t index)
-{
- return bt_trace_class_borrow_stream_class_by_index(
- (void *) tc, index);
-}
-
-struct bt_stream_class *bt_trace_class_borrow_stream_class_by_id(
- struct bt_trace_class *tc, uint64_t id)
-{
- struct bt_stream_class *stream_class = NULL;
- uint64_t i;
-
- BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
-
- for (i = 0; i < tc->stream_classes->len; i++) {
- struct bt_stream_class *stream_class_candidate =
- g_ptr_array_index(tc->stream_classes, i);
-
- if (stream_class_candidate->id == id) {
- stream_class = stream_class_candidate;
- goto end;
- }
- }
-
-end:
- return stream_class;
-}
-
-const struct bt_stream_class *
-bt_trace_class_borrow_stream_class_by_id_const(
- const struct bt_trace_class *tc, uint64_t id)
-{
- return bt_trace_class_borrow_stream_class_by_id((void *) tc, id);
-}
-
-BT_HIDDEN
-void _bt_trace_class_freeze(const struct bt_trace_class *tc)
-{
- BT_ASSERT(tc);
- BT_LIB_LOGD("Freezing trace class: %!+T", tc);
- ((struct bt_trace_class *) tc)->frozen = true;
-}
-
-bt_bool bt_trace_class_assigns_automatic_stream_class_id(const struct bt_trace_class *tc)
-{
- BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
- return (bt_bool) tc->assigns_automatic_stream_class_id;
-}
-
-void bt_trace_class_set_assigns_automatic_stream_class_id(struct bt_trace_class *tc,
- bt_bool value)
-{
- BT_ASSERT_PRE_NON_NULL(tc, "Trace class");
- BT_ASSERT_PRE_TRACE_CLASS_HOT(tc);
- tc->assigns_automatic_stream_class_id = (bool) value;
- BT_LIB_LOGV("Set trace class's automatic stream class ID "
- "assignment property: %!+T", tc);
-}
-
-void bt_trace_class_get_ref(const struct bt_trace_class *trace_class)
-{
- bt_object_get_ref(trace_class);
-}
-
-void bt_trace_class_put_ref(const struct bt_trace_class *trace_class)
-{
- bt_object_put_ref(trace_class);
-}
projects / babeltrace.git / blobdiff