+++ /dev/null
-/*
- * stream.c
- *
- * Babeltrace CTF IR - Stream
- *
- * Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
- *
- * 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.
- */
-
-#define BT_LOG_TAG "STREAM"
-#include <babeltrace/lib-logging-internal.h>
-
-#include <babeltrace/assert-pre-internal.h>
-#include <babeltrace/ctf-ir/stream.h>
-#include <babeltrace/ctf-ir/stream-internal.h>
-#include <babeltrace/ctf-ir/stream-class.h>
-#include <babeltrace/ctf-ir/stream-class-internal.h>
-#include <babeltrace/ctf-ir/trace.h>
-#include <babeltrace/ctf-ir/trace-internal.h>
-#include <babeltrace/ctf-ir/packet-internal.h>
-#include <babeltrace/ref.h>
-#include <babeltrace/compiler-internal.h>
-#include <babeltrace/align-internal.h>
-#include <babeltrace/assert-internal.h>
-#include <babeltrace/property-internal.h>
-#include <inttypes.h>
-#include <unistd.h>
-
-#define BT_ASSERT_PRE_STREAM_HOT(_stream) \
- BT_ASSERT_PRE_HOT((_stream), "Stream", ": %!+s", (_stream))
-
-static
-void destroy_stream(struct bt_object *obj)
-{
- struct bt_stream *stream = (void *) obj;
-
- BT_LIB_LOGD("Destroying stream object: %!+s", stream);
-
- if (stream->name.str) {
- g_string_free(stream->name.str, TRUE);
- }
-
- bt_object_pool_finalize(&stream->packet_pool);
- g_free(stream);
-}
-
-static
-void bt_stream_free_packet(struct bt_packet *packet, struct bt_stream *stream)
-{
- bt_packet_destroy(packet);
-}
-
-BT_ASSERT_PRE_FUNC
-static inline
-bool stream_id_is_unique(struct bt_trace *trace,
- struct bt_stream_class *stream_class, uint64_t id)
-{
- uint64_t i;
- bool is_unique = true;
-
- for (i = 0; i < trace->streams->len; i++) {
- struct bt_stream *stream = trace->streams->pdata[i];
-
- if (stream->class != stream_class) {
- continue;
- }
-
- if (stream->id == id) {
- is_unique = false;
- goto end;
- }
- }
-
-end:
- return is_unique;
-}
-
-static
-struct bt_stream *create_stream_with_id(struct bt_stream_class *stream_class,
- uint64_t id)
-{
- int ret;
- struct bt_stream *stream;
- struct bt_trace *trace;
-
- BT_ASSERT(stream_class);
- trace = bt_stream_class_borrow_trace_inline(stream_class);
- BT_ASSERT_PRE(stream_id_is_unique(trace, stream_class, id),
- "Duplicate stream ID: %![trace-]+t, id=%" PRIu64, trace, id);
- BT_ASSERT_PRE(!trace->is_static,
- "Trace is static: %![trace-]+t", trace);
- BT_LIB_LOGD("Creating stream object: %![trace-]+t, id=%" PRIu64,
- trace, id);
- stream = g_new0(struct bt_stream, 1);
- if (!stream) {
- BT_LOGE_STR("Failed to allocate one stream.");
- goto error;
- }
-
- bt_object_init_shared_with_parent(&stream->base, destroy_stream);
- stream->name.str = g_string_new(NULL);
- if (!stream->name.str) {
- BT_LOGE_STR("Failed to allocate a GString.");
- goto error;
- }
-
- stream->id = id;
- ret = bt_object_pool_initialize(&stream->packet_pool,
- (bt_object_pool_new_object_func) bt_packet_new,
- (bt_object_pool_destroy_object_func) bt_stream_free_packet,
- stream);
- if (ret) {
- BT_LOGE("Failed to initialize packet pool: ret=%d", ret);
- goto error;
- }
-
- stream->class = stream_class;
- bt_trace_add_stream(trace, stream);
- bt_stream_class_freeze(stream_class);
- BT_LIB_LOGD("Created stream object: %!+s", stream);
- goto end;
-
-error:
- BT_PUT(stream);
-
-end:
- return stream;
-}
-
-struct bt_stream *bt_stream_create(struct bt_stream_class *stream_class)
-{
- uint64_t id;
-
- BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
- BT_ASSERT_PRE(stream_class->assigns_automatic_stream_id,
- "Stream class does not automatically assigns stream IDs: "
- "%![sc-]+S", stream_class);
- id = bt_trace_get_automatic_stream_id(
- bt_stream_class_borrow_trace_inline(stream_class),
- stream_class);
- return create_stream_with_id(stream_class, id);
-}
-
-struct bt_stream *bt_stream_create_with_id(struct bt_stream_class *stream_class,
- uint64_t id)
-{
- BT_ASSERT_PRE(!stream_class->assigns_automatic_stream_id,
- "Stream class automatically assigns stream IDs: "
- "%![sc-]+S", stream_class);
- return create_stream_with_id(stream_class, id);
-}
-
-struct bt_stream_class *bt_stream_borrow_class(struct bt_stream *stream)
-{
- BT_ASSERT_PRE_NON_NULL(stream, "Stream");
- return stream->class;
-}
-
-const char *bt_stream_get_name(struct bt_stream *stream)
-{
- BT_ASSERT_PRE_NON_NULL(stream, "Stream class");
- return stream->name.value;
-}
-
-int bt_stream_set_name(struct bt_stream *stream, const char *name)
-{
- BT_ASSERT_PRE_NON_NULL(stream, "Clock class");
- BT_ASSERT_PRE_NON_NULL(name, "Name");
- BT_ASSERT_PRE_STREAM_HOT(stream);
- g_string_assign(stream->name.str, name);
- stream->name.value = stream->name.str->str;
- BT_LIB_LOGV("Set stream class's name: %!+S", stream);
- return 0;
-}
-
-uint64_t bt_stream_get_id(struct bt_stream *stream)
-{
- BT_ASSERT_PRE_NON_NULL(stream, "Stream class");
- return stream->id;
-}
-
-BT_HIDDEN
-void _bt_stream_freeze(struct bt_stream *stream)
-{
- /* The field types and default clock class are already frozen */
- BT_ASSERT(stream);
- BT_LIB_LOGD("Freezing stream: %!+s", stream);
- stream->frozen = true;
-}
projects / babeltrace.git / blobdiff