--- /dev/null
+/*
+ * packet.c
+ *
+ * Babeltrace CTF IR - Stream packet
+ *
+ * Copyright 2016 Philippe Proulx <pproulx@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-ir/fields-internal.h>
+#include <babeltrace/ctf-ir/packet.h>
+#include <babeltrace/ctf-ir/packet-internal.h>
+#include <babeltrace/ctf-ir/trace.h>
+#include <babeltrace/ctf-ir/stream-class-internal.h>
+#include <babeltrace/ctf-ir/stream-class.h>
+#include <babeltrace/ctf-ir/stream.h>
+#include <babeltrace/ctf-ir/stream-internal.h>
+#include <babeltrace/ctf-ir/trace-internal.h>
+#include <babeltrace/object-internal.h>
+#include <babeltrace/ref.h>
+
+struct bt_ctf_stream *bt_ctf_packet_get_stream(struct bt_ctf_packet *packet)
+{
+ return packet ? bt_get(packet->stream) : NULL;
+}
+
+struct bt_ctf_field *bt_ctf_packet_get_header(
+ struct bt_ctf_packet *packet)
+{
+ return packet ? bt_get(packet->header) : NULL;
+}
+
+int bt_ctf_packet_set_header(struct bt_ctf_packet *packet,
+ struct bt_ctf_field *header)
+{
+ int ret = 0;
+ struct bt_ctf_trace *trace = NULL;
+ struct bt_ctf_stream_class *stream_class = NULL;
+ struct bt_ctf_field_type *header_field_type = NULL;
+ struct bt_ctf_field_type *expected_header_field_type = NULL;
+
+ if (!packet || !header || packet->frozen) {
+ ret = -1;
+ goto end;
+ }
+
+ stream_class = bt_ctf_stream_get_class(packet->stream);
+ assert(stream_class);
+ trace = bt_ctf_stream_class_get_trace(stream_class);
+ assert(trace);
+ header_field_type = bt_ctf_field_get_type(header);
+ assert(header_field_type);
+ expected_header_field_type = bt_ctf_trace_get_packet_header_type(trace);
+
+ if (bt_ctf_field_type_compare(header_field_type,
+ expected_header_field_type)) {
+ ret = -1;
+ goto end;
+ }
+
+ bt_put(packet->header);
+ packet->header = bt_get(header);
+
+end:
+ BT_PUT(trace);
+ BT_PUT(stream_class);
+ BT_PUT(header_field_type);
+ BT_PUT(expected_header_field_type);
+
+ return ret;
+}
+
+struct bt_ctf_field *bt_ctf_packet_get_context(
+ struct bt_ctf_packet *packet)
+{
+ return packet ? bt_get(packet->context) : NULL;
+}
+
+int bt_ctf_packet_set_context(struct bt_ctf_packet *packet,
+ struct bt_ctf_field *context)
+{
+ int ret = 0;
+ struct bt_ctf_stream_class *stream_class = NULL;
+ struct bt_ctf_field_type *context_field_type = NULL;
+ struct bt_ctf_field_type *expected_context_field_type = NULL;
+
+ if (!packet || !context || packet->frozen) {
+ ret = -1;
+ goto end;
+ }
+
+ stream_class = bt_ctf_stream_get_class(packet->stream);
+ assert(stream_class);
+ context_field_type = bt_ctf_field_get_type(context);
+ assert(context_field_type);
+ expected_context_field_type =
+ bt_ctf_stream_class_get_packet_context_type(stream_class);
+
+ if (bt_ctf_field_type_compare(context_field_type,
+ expected_context_field_type)) {
+ ret = -1;
+ goto end;
+ }
+
+ bt_put(packet->context);
+ packet->context = bt_get(context);
+
+end:
+ BT_PUT(stream_class);
+ BT_PUT(context_field_type);
+ BT_PUT(expected_context_field_type);
+
+ return ret;
+}
+
+BT_HIDDEN
+void bt_ctf_packet_freeze(struct bt_ctf_packet *packet)
+{
+ if (!packet) {
+ goto end;
+ }
+
+ bt_ctf_field_freeze(packet->header);
+ bt_ctf_field_freeze(packet->context);
+ packet->frozen = 1;
+
+end:
+ return;
+}
+
+static
+void bt_ctf_packet_destroy(struct bt_object *obj)
+{
+ struct bt_ctf_packet *packet;
+
+ packet = container_of(obj, struct bt_ctf_packet, base);
+ bt_put(packet->header);
+ bt_put(packet->context);
+ bt_put(packet->stream);
+ g_free(packet);
+}
+
+extern struct bt_ctf_packet *bt_ctf_packet_create(
+ struct bt_ctf_stream *stream)
+{
+ struct bt_ctf_packet *packet = NULL;
+ struct bt_ctf_stream_class *stream_class = NULL;
+ struct bt_ctf_trace *trace = NULL;
+
+ if (!stream || stream->pos.fd >= 0) {
+ goto end;
+ }
+
+ stream_class = bt_ctf_stream_get_class(stream);
+ assert(stream_class);
+ trace = bt_ctf_stream_class_get_trace(stream_class);
+ assert(trace);
+ packet = g_new0(struct bt_ctf_packet, 1);
+ if (!packet) {
+ goto end;
+ }
+
+ bt_object_init(packet, bt_ctf_packet_destroy);
+ packet->stream = bt_get(stream);
+ packet->header = bt_ctf_field_create(trace->packet_header_type);
+ if (!packet->header) {
+ BT_PUT(packet);
+ goto end;
+ }
+
+ packet->context = bt_ctf_field_create(
+ stream->stream_class->packet_context_type);
+ if (!packet->context) {
+ BT_PUT(packet);
+ goto end;
+ }
+
+end:
+ BT_PUT(trace);
+ BT_PUT(stream_class);
+
+ return packet;
+}
projects / babeltrace.git / blobdiff