--- /dev/null
+/*
+ * event.c
+ *
+ * Babeltrace CTF Writer
+ *
+ * Copyright 2013 EfficiOS Inc.
+ *
+ * Author: 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.
+ */
+
+#include <babeltrace/ctf-writer/event.h>
+#include <babeltrace/ctf-writer/event-types.h>
+#include <babeltrace/ctf-writer/event-fields.h>
+#include <babeltrace/ctf-writer/event-fields-internal.h>
+#include <babeltrace/ctf-writer/event-types-internal.h>
+#include <babeltrace/ctf-writer/event-internal.h>
+#include <babeltrace/ctf-writer/writer-internal.h>
+#include <babeltrace/compiler.h>
+
+static
+void bt_ctf_event_class_destroy(struct bt_ctf_ref *ref);
+static
+void bt_ctf_event_destroy(struct bt_ctf_ref *ref);
+
+struct bt_ctf_event_class *bt_ctf_event_class_create(const char *name)
+{
+ struct bt_ctf_event_class *event_class = NULL;
+
+ if (validate_identifier(name)) {
+ goto end;
+ }
+
+ event_class = g_new0(struct bt_ctf_event_class, 1);
+ if (!event_class) {
+ goto end;
+ }
+
+ bt_ctf_ref_init(&event_class->ref_count);
+ event_class->name = g_quark_from_string(name);
+end:
+ return event_class;
+}
+
+int bt_ctf_event_class_add_field(struct bt_ctf_event_class *event_class,
+ struct bt_ctf_field_type *type,
+ const char *name)
+{
+ int ret = 0;
+
+ if (!event_class || !type || validate_identifier(name) ||
+ event_class->frozen) {
+ ret = -1;
+ goto end;
+ }
+
+ if (!event_class->fields) {
+ event_class->fields = bt_ctf_field_type_structure_create();
+ if (!event_class->fields) {
+ ret = -1;
+ goto end;
+ }
+ }
+
+ ret = bt_ctf_field_type_structure_add_field(event_class->fields,
+ type, name);
+end:
+ return ret;
+}
+
+void bt_ctf_event_class_get(struct bt_ctf_event_class *event_class)
+{
+ if (!event_class) {
+ return;
+ }
+
+ bt_ctf_ref_get(&event_class->ref_count);
+}
+
+void bt_ctf_event_class_put(struct bt_ctf_event_class *event_class)
+{
+ if (!event_class) {
+ return;
+ }
+
+ bt_ctf_ref_put(&event_class->ref_count, bt_ctf_event_class_destroy);
+}
+
+struct bt_ctf_event *bt_ctf_event_create(struct bt_ctf_event_class *event_class)
+{
+ struct bt_ctf_event *event = NULL;
+
+ if (!event_class) {
+ goto end;
+ }
+
+ event = g_new0(struct bt_ctf_event, 1);
+ if (!event) {
+ goto end;
+ }
+
+ bt_ctf_ref_init(&event->ref_count);
+ bt_ctf_event_class_get(event_class);
+ bt_ctf_event_class_freeze(event_class);
+ event->event_class = event_class;
+ event->context_payload = bt_ctf_field_create(event_class->context);
+ event->fields_payload = bt_ctf_field_create(event_class->fields);
+end:
+ return event;
+}
+
+int bt_ctf_event_set_payload(struct bt_ctf_event *event,
+ const char *name,
+ struct bt_ctf_field *value)
+{
+ int ret = 0;
+
+ if (!event || !value || validate_identifier(name)) {
+ ret = -1;
+ goto end;
+ }
+
+ ret = bt_ctf_field_structure_set_field(event->fields_payload,
+ name, value);
+end:
+ return ret;
+}
+
+
+struct bt_ctf_field *bt_ctf_event_get_payload(struct bt_ctf_event *event,
+ const char *name)
+{
+ struct bt_ctf_field *field = NULL;
+
+ if (!event || !name) {
+ goto end;
+ }
+
+ field = bt_ctf_field_structure_get_field(event->fields_payload, name);
+end:
+ return field;
+}
+
+void bt_ctf_event_get(struct bt_ctf_event *event)
+{
+ if (!event) {
+ return;
+ }
+
+ bt_ctf_ref_get(&event->ref_count);
+}
+
+void bt_ctf_event_put(struct bt_ctf_event *event)
+{
+ if (!event) {
+ return;
+ }
+
+ bt_ctf_ref_put(&event->ref_count, bt_ctf_event_destroy);
+}
+
+static
+void bt_ctf_event_class_destroy(struct bt_ctf_ref *ref)
+{
+ struct bt_ctf_event_class *event_class;
+
+ if (!ref) {
+ return;
+ }
+
+ event_class = container_of(ref, struct bt_ctf_event_class, ref_count);
+ bt_ctf_field_type_put(event_class->context);
+ bt_ctf_field_type_put(event_class->fields);
+ g_free(event_class);
+}
+
+static
+void bt_ctf_event_destroy(struct bt_ctf_ref *ref)
+{
+ struct bt_ctf_event *event;
+
+ if (!ref) {
+ return;
+ }
+
+ event = container_of(ref, struct bt_ctf_event,
+ ref_count);
+ bt_ctf_event_class_put(event->event_class);
+ bt_ctf_field_put(event->context_payload);
+ bt_ctf_field_put(event->fields_payload);
+ g_free(event);
+}
+
+BT_HIDDEN
+void bt_ctf_event_class_freeze(struct bt_ctf_event_class *event_class)
+{
+ assert(event_class);
+ event_class->frozen = 1;
+ bt_ctf_field_type_freeze(event_class->context);
+ bt_ctf_field_type_freeze(event_class->fields);
+}
+
+BT_HIDDEN
+int bt_ctf_event_class_set_id(struct bt_ctf_event_class *event_class,
+ uint32_t id)
+{
+ int ret = 0;
+
+ if (event_class->id_set && id != event_class->id) {
+ ret = -1;
+ goto end;
+ }
+
+ event_class->id = id;
+ event_class->id_set = 1;
+end:
+ return ret;
+}
+
+BT_HIDDEN
+uint32_t bt_ctf_event_class_get_id(struct bt_ctf_event_class *event_class)
+{
+ assert(event_class);
+ return event_class->id;
+}
+
+BT_HIDDEN
+int bt_ctf_event_class_set_stream_id(struct bt_ctf_event_class *event_class,
+ uint32_t id)
+{
+ int ret = 0;
+
+ assert(event_class);
+ if (event_class->stream_id_set && id != event_class->stream_id) {
+ ret = -1;
+ goto end;
+ }
+
+ event_class->stream_id = id;
+ event_class->stream_id_set = 1;
+end:
+ return ret;
+}
+
+BT_HIDDEN
+int bt_ctf_event_class_serialize(struct bt_ctf_event_class *event_class,
+ struct metadata_context *context)
+{
+ int ret = 0;
+
+ assert(event_class);
+ assert(context);
+ context->current_indentation_level = 1;
+ g_string_assign(context->field_name, "");
+ g_string_append_printf(context->string, "event {\n\tname = \"%s\";\n\tid = %u;\n\tstream_id = %" PRIu32 ";\n",
+ g_quark_to_string(event_class->name),
+ event_class->id,
+ event_class->stream_id);
+
+ if (event_class->context) {
+ g_string_append(context->string, "\tcontext := ");
+ ret = bt_ctf_field_type_serialize(event_class->context,
+ context);
+ if (ret) {
+ goto end;
+ }
+ g_string_append(context->string, ";\n");
+ }
+
+ if (event_class->fields) {
+ g_string_append(context->string, "\tfields := ");
+ ret = bt_ctf_field_type_serialize(event_class->fields, context);
+ if (ret) {
+ goto end;
+ }
+ g_string_append(context->string, ";\n");
+ }
+
+ g_string_append(context->string, "};\n\n");
+end:
+ context->current_indentation_level = 0;
+ return ret;
+}
+
+BT_HIDDEN
+int bt_ctf_event_validate(struct bt_ctf_event *event)
+{
+ /* Make sure each field's payload has been set */
+ int ret;
+
+ assert(event);
+ ret = bt_ctf_field_validate(event->fields_payload);
+ if (ret) {
+ goto end;
+ }
+
+ if (event->event_class->context) {
+ ret = bt_ctf_field_validate(event->context_payload);
+ }
+end:
+ return ret;
+}
+
+BT_HIDDEN
+int bt_ctf_event_serialize(struct bt_ctf_event *event,
+ struct ctf_stream_pos *pos)
+{
+ int ret = 0;
+
+ assert(event);
+ assert(pos);
+ if (event->context_payload) {
+ ret = bt_ctf_field_serialize(event->context_payload, pos);
+ if (ret) {
+ goto end;
+ }
+ }
+
+ if (event->fields_payload) {
+ ret = bt_ctf_field_serialize(event->fields_payload, pos);
+ if (ret) {
+ goto end;
+ }
+ }
+end:
+ return ret;
+}
+
+BT_HIDDEN
+int bt_ctf_event_set_timestamp(struct bt_ctf_event *event,
+ uint64_t timestamp)
+{
+ int ret = 0;
+
+ assert(event);
+ if (event->timestamp) {
+ ret = -1;
+ goto end;
+ }
+
+ event->timestamp = timestamp;
+end:
+ return ret;
+}
+
+BT_HIDDEN
+uint64_t bt_ctf_event_get_timestamp(struct bt_ctf_event *event)
+{
+ assert(event);
+ return event->timestamp;
+}
projects / babeltrace.git / blobdiff