+++ /dev/null
-/*
- * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
- * Copyright 2013, 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 "EVENT-CLASS"
-#include <babeltrace2/lib-logging-internal.h>
-
-#include <babeltrace2/assert-pre-internal.h>
-#include <babeltrace2/trace-ir/clock-snapshot-internal.h>
-#include <babeltrace2/trace-ir/field-internal.h>
-#include <babeltrace2/trace-ir/field-class.h>
-#include <babeltrace2/trace-ir/field-class-internal.h>
-#include <babeltrace2/trace-ir/event-class.h>
-#include <babeltrace2/trace-ir/event-class-const.h>
-#include <babeltrace2/trace-ir/event-class-internal.h>
-#include <babeltrace2/trace-ir/event-internal.h>
-#include <babeltrace2/trace-ir/stream-class.h>
-#include <babeltrace2/trace-ir/stream-class-internal.h>
-#include <babeltrace2/trace-ir/trace-internal.h>
-#include <babeltrace2/trace-ir/utils-internal.h>
-#include <babeltrace2/trace-ir/resolve-field-path-internal.h>
-#include <babeltrace2/trace-ir/attributes-internal.h>
-#include <babeltrace2/compiler-internal.h>
-#include <babeltrace2/endian-internal.h>
-#include <babeltrace2/types.h>
-#include <babeltrace2/value-internal.h>
-#include <babeltrace2/assert-internal.h>
-#include <inttypes.h>
-#include <stdlib.h>
-
-#define BT_ASSERT_PRE_EVENT_CLASS_HOT(_ec) \
- BT_ASSERT_PRE_HOT(((const struct bt_event_class *) (_ec)), \
- "Event class", ": %!+E", (_ec))
-
-static
-void destroy_event_class(struct bt_object *obj)
-{
- struct bt_event_class *event_class = (void *) obj;
-
- BT_LIB_LOGD("Destroying event class: %!+E", event_class);
-
- if (event_class->name.str) {
- g_string_free(event_class->name.str, TRUE);
- event_class->name.str = NULL;
- }
-
- if (event_class->emf_uri.str) {
- g_string_free(event_class->emf_uri.str, TRUE);
- event_class->emf_uri.str = NULL;
- }
-
- BT_LOGD_STR("Putting context field class.");
- BT_OBJECT_PUT_REF_AND_RESET(event_class->specific_context_fc);
- BT_LOGD_STR("Putting payload field class.");
- BT_OBJECT_PUT_REF_AND_RESET(event_class->payload_fc);
- bt_object_pool_finalize(&event_class->event_pool);
- g_free(obj);
-}
-
-static
-void free_event(struct bt_event *event,
- struct bt_event_class *event_class)
-{
- bt_event_destroy(event);
-}
-
-BT_ASSERT_PRE_FUNC
-static
-bool event_class_id_is_unique(const struct bt_stream_class *stream_class,
- uint64_t id)
-{
- uint64_t i;
- bool is_unique = true;
-
- for (i = 0; i < stream_class->event_classes->len; i++) {
- const struct bt_event_class *ec =
- stream_class->event_classes->pdata[i];
-
- if (ec->id == id) {
- is_unique = false;
- goto end;
- }
- }
-
-end:
- return is_unique;
-}
-
-static
-struct bt_event_class *create_event_class_with_id(
- struct bt_stream_class *stream_class, uint64_t id)
-{
- int ret;
- struct bt_event_class *event_class;
-
- BT_ASSERT(stream_class);
- BT_ASSERT_PRE(event_class_id_is_unique(stream_class, id),
- "Duplicate event class ID: %![sc-]+S, id=%" PRIu64,
- stream_class, id);
- BT_LIB_LOGD("Creating event class object: %![sc-]+S, id=%" PRIu64,
- stream_class, id);
- event_class = g_new0(struct bt_event_class, 1);
- if (!event_class) {
- BT_LOGE_STR("Failed to allocate one event class.");
- goto error;
- }
-
- bt_object_init_shared_with_parent(&event_class->base,
- destroy_event_class);
- event_class->id = id;
- bt_property_uint_init(&event_class->log_level,
- BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE, 0);
- event_class->name.str = g_string_new(NULL);
- if (!event_class->name.str) {
- BT_LOGE_STR("Failed to allocate a GString.");
- ret = -1;
- goto end;
- }
-
- event_class->emf_uri.str = g_string_new(NULL);
- if (!event_class->emf_uri.str) {
- BT_LOGE_STR("Failed to allocate a GString.");
- ret = -1;
- goto end;
- }
-
- ret = bt_object_pool_initialize(&event_class->event_pool,
- (bt_object_pool_new_object_func) bt_event_new,
- (bt_object_pool_destroy_object_func) free_event,
- event_class);
- if (ret) {
- BT_LOGE("Failed to initialize event pool: ret=%d",
- ret);
- goto error;
- }
-
- bt_object_set_parent(&event_class->base, &stream_class->base);
- g_ptr_array_add(stream_class->event_classes, event_class);
- bt_stream_class_freeze(stream_class);
- BT_LIB_LOGD("Created event class object: %!+E", event_class);
- goto end;
-
-error:
- BT_OBJECT_PUT_REF_AND_RESET(event_class);
-
-end:
- return event_class;
-}
-
-struct bt_event_class *bt_event_class_create(
- struct bt_stream_class *stream_class)
-{
- BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
- BT_ASSERT_PRE(stream_class->assigns_automatic_event_class_id,
- "Stream class does not automatically assigns event class IDs: "
- "%![sc-]+S", stream_class);
- return create_event_class_with_id(stream_class,
- (uint64_t) stream_class->event_classes->len);
-}
-
-struct bt_event_class *bt_event_class_create_with_id(
- struct bt_stream_class *stream_class, uint64_t id)
-{
- BT_ASSERT_PRE(!stream_class->assigns_automatic_event_class_id,
- "Stream class automatically assigns event class IDs: "
- "%![sc-]+S", stream_class);
- return create_event_class_with_id(stream_class, id);
-}
-
-const char *bt_event_class_get_name(const struct bt_event_class *event_class)
-{
- BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
- return event_class->name.value;
-}
-
-enum bt_event_class_status bt_event_class_set_name(
- struct bt_event_class *event_class, const char *name)
-{
- BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
- BT_ASSERT_PRE_NON_NULL(name, "Name");
- BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
- g_string_assign(event_class->name.str, name);
- event_class->name.value = event_class->name.str->str;
- BT_LIB_LOGV("Set event class's name: %!+E", event_class);
- return BT_EVENT_CLASS_STATUS_OK;
-}
-
-uint64_t bt_event_class_get_id(const struct bt_event_class *event_class)
-{
- BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
- return event_class->id;
-}
-
-enum bt_property_availability bt_event_class_get_log_level(
- const struct bt_event_class *event_class,
- enum bt_event_class_log_level *log_level)
-{
- BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
- BT_ASSERT_PRE_NON_NULL(log_level, "Log level (output)");
- *log_level = (enum bt_event_class_log_level)
- event_class->log_level.value;
- return event_class->log_level.base.avail;
-}
-
-void bt_event_class_set_log_level(
- struct bt_event_class *event_class,
- enum bt_event_class_log_level log_level)
-{
- BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
- BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
- bt_property_uint_set(&event_class->log_level,
- (uint64_t) log_level);
- BT_LIB_LOGV("Set event class's log level: %!+E", event_class);
-}
-
-const char *bt_event_class_get_emf_uri(const struct bt_event_class *event_class)
-{
- BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
- return event_class->emf_uri.value;
-}
-
-enum bt_event_class_status bt_event_class_set_emf_uri(
- struct bt_event_class *event_class,
- const char *emf_uri)
-{
- BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
- BT_ASSERT_PRE_NON_NULL(emf_uri, "EMF URI");
- BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
- g_string_assign(event_class->emf_uri.str, emf_uri);
- event_class->emf_uri.value = event_class->emf_uri.str->str;
- BT_LIB_LOGV("Set event class's EMF URI: %!+E", event_class);
- return BT_EVENT_CLASS_STATUS_OK;
-}
-
-struct bt_stream_class *bt_event_class_borrow_stream_class(
- struct bt_event_class *event_class)
-{
- BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
- return bt_event_class_borrow_stream_class_inline(event_class);
-}
-
-const struct bt_stream_class *
-bt_event_class_borrow_stream_class_const(
- const struct bt_event_class *event_class)
-{
- return bt_event_class_borrow_stream_class((void *) event_class);
-}
-
-const struct bt_field_class *
-bt_event_class_borrow_specific_context_field_class_const(
- const struct bt_event_class *event_class)
-{
- BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
- return event_class->specific_context_fc;
-}
-
-struct bt_field_class *
-bt_event_class_borrow_specific_context_field_class(
- struct bt_event_class *event_class)
-{
- BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
- return event_class->specific_context_fc;
-}
-
-enum bt_event_class_status bt_event_class_set_specific_context_field_class(
- struct bt_event_class *event_class,
- struct bt_field_class *field_class)
-{
- int ret;
- struct bt_stream_class *stream_class;
- struct bt_resolve_field_path_context resolve_ctx = {
- .packet_context = NULL,
- .event_common_context = NULL,
- .event_specific_context = field_class,
- .event_payload = NULL,
- };
-
- BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
- BT_ASSERT_PRE_NON_NULL(field_class, "Field class");
- BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
- BT_ASSERT_PRE(bt_field_class_get_type(field_class) ==
- BT_FIELD_CLASS_TYPE_STRUCTURE,
- "Specific context field class is not a structure field class: "
- "%!+F", field_class);
- stream_class = bt_event_class_borrow_stream_class_inline(
- event_class);
- resolve_ctx.packet_context = stream_class->packet_context_fc;
- resolve_ctx.event_common_context =
- stream_class->event_common_context_fc;
-
- ret = bt_resolve_field_paths(field_class, &resolve_ctx);
- if (ret) {
- /*
- * This is the only reason for which
- * bt_resolve_field_paths() can fail: anything else
- * would be because a precondition is not satisfied.
- */
- ret = BT_EVENT_CLASS_STATUS_NOMEM;
- goto end;
- }
-
- bt_field_class_make_part_of_trace_class(field_class);
- bt_object_put_ref(event_class->specific_context_fc);
- event_class->specific_context_fc = field_class;
- bt_object_get_no_null_check(event_class->specific_context_fc);
- bt_field_class_freeze(field_class);
- BT_LIB_LOGV("Set event class's specific context field class: %!+E",
- event_class);
-
-end:
- return ret;
-}
-
-const struct bt_field_class *bt_event_class_borrow_payload_field_class_const(
- const struct bt_event_class *event_class)
-{
- BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
- return event_class->payload_fc;
-}
-
-struct bt_field_class *bt_event_class_borrow_payload_field_class(
- struct bt_event_class *event_class)
-{
- BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
- return event_class->payload_fc;
-}
-
-enum bt_event_class_status bt_event_class_set_payload_field_class(
- struct bt_event_class *event_class,
- struct bt_field_class *field_class)
-{
- int ret;
- struct bt_stream_class *stream_class;
- struct bt_resolve_field_path_context resolve_ctx = {
- .packet_context = NULL,
- .event_common_context = NULL,
- .event_specific_context = NULL,
- .event_payload = field_class,
- };
-
- BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
- BT_ASSERT_PRE_NON_NULL(field_class, "Field class");
- BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
- BT_ASSERT_PRE(bt_field_class_get_type(field_class) ==
- BT_FIELD_CLASS_TYPE_STRUCTURE,
- "Payload field class is not a structure field class: %!+F",
- field_class);
- stream_class = bt_event_class_borrow_stream_class_inline(
- event_class);
- resolve_ctx.packet_context = stream_class->packet_context_fc;
- resolve_ctx.event_common_context =
- stream_class->event_common_context_fc;
- resolve_ctx.event_specific_context = event_class->specific_context_fc;
-
- ret = bt_resolve_field_paths(field_class, &resolve_ctx);
- if (ret) {
- /*
- * This is the only reason for which
- * bt_resolve_field_paths() can fail: anything else
- * would be because a precondition is not satisfied.
- */
- ret = BT_EVENT_CLASS_STATUS_NOMEM;
- goto end;
- }
-
- bt_field_class_make_part_of_trace_class(field_class);
- bt_object_put_ref(event_class->payload_fc);
- event_class->payload_fc = field_class;
- bt_object_get_no_null_check(event_class->payload_fc);
- bt_field_class_freeze(field_class);
- BT_LIB_LOGV("Set event class's payload field class: %!+E", event_class);
-
-end:
- return ret;
-}
-
-BT_HIDDEN
-void _bt_event_class_freeze(const struct bt_event_class *event_class)
-{
- /* The field classes are already frozen */
- BT_ASSERT(event_class);
- BT_LIB_LOGD("Freezing event class: %!+E", event_class);
- ((struct bt_event_class *) event_class)->frozen = true;
-}
-
-void bt_event_class_get_ref(const struct bt_event_class *event_class)
-{
- bt_object_get_ref(event_class);
-}
-
-void bt_event_class_put_ref(const struct bt_event_class *event_class)
-{
- bt_object_put_ref(event_class);
-}
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