Move to kernel style SPDX license identifiers

[babeltrace.git] / src / lib / trace-ir / stream.c

diff --git a/src/lib/trace-ir/stream.c b/src/lib/trace-ir/stream.c
index bac7cc5af557003421a151acc7fea9f865fcf2eb..daabe96f22785318b9aa8396fd116a092325820f 100644 (file)
--- a/src/lib/trace-ir/stream.c
+++ b/src/lib/trace-ir/stream.c
@@ -1,31 +1,14 @@
 /*
+ * SPDX-License-Identifier: MIT
+ *
  * 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 "LIB/STREAM"
 #include "lib/logging.h"
 
 #include "lib/assert-pre.h"
-#include <babeltrace2/trace-ir/stream-const.h>
 #include <babeltrace2/trace-ir/stream.h>
 #include <babeltrace2/trace-ir/stream-class.h>
 #include <babeltrace2/trace-ir/trace.h>
@@ -34,12 +17,14 @@
 #include "common/assert.h"
 #include "lib/property.h"
 #include <inttypes.h>
+#include <stdbool.h>
 #include <unistd.h>
 
 #include "packet.h"
 #include "stream-class.h"
 #include "stream.h"
 #include "trace.h"
+#include "lib/value.h"
 #include "lib/func-status.h"
 
 #define BT_ASSERT_PRE_DEV_STREAM_HOT(_stream) \
@@ -51,6 +36,7 @@ void destroy_stream(struct bt_object *obj)
        struct bt_stream *stream = (void *) obj;
 
        BT_LIB_LOGD("Destroying stream object: %!+s", stream);
+       BT_OBJECT_PUT_REF_AND_RESET(stream->user_attributes);
 
        if (stream->name.str) {
                g_string_free(stream->name.str, TRUE);
@@ -70,7 +56,6 @@ 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)
@@ -119,6 +104,13 @@ struct bt_stream *create_stream_with_id(struct bt_stream_class *stream_class,
        }
 
        bt_object_init_shared_with_parent(&stream->base, destroy_stream);
+       stream->user_attributes = bt_value_map_create();
+       if (!stream->user_attributes) {
+               BT_LIB_LOGE_APPEND_CAUSE(
+                       "Failed to create a map value object.");
+               goto error;
+       }
+
        stream->name.str = g_string_new(NULL);
        if (!stream->name.str) {
                BT_LIB_LOGE_APPEND_CAUSE("Failed to allocate a GString.");
@@ -137,7 +129,7 @@ struct bt_stream *create_stream_with_id(struct bt_stream_class *stream_class,
        }
 
        stream->class = stream_class;
-       bt_object_get_no_null_check(stream_class);
+       bt_object_get_ref_no_null_check(stream_class);
 
        /* bt_trace_add_stream() sets the parent trace, and freezes the trace */
        bt_trace_add_stream(trace, stream);
@@ -158,6 +150,7 @@ struct bt_stream *bt_stream_create(struct bt_stream_class *stream_class,
 {
        uint64_t id;
 
+       BT_ASSERT_PRE_NO_ERROR();
        BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
        BT_ASSERT_PRE_NON_NULL(trace, "Trace");
        BT_ASSERT_PRE(stream_class->assigns_automatic_stream_id,
@@ -170,6 +163,7 @@ struct bt_stream *bt_stream_create(struct bt_stream_class *stream_class,
 struct bt_stream *bt_stream_create_with_id(struct bt_stream_class *stream_class,
                struct bt_trace *trace, uint64_t id)
 {
+       BT_ASSERT_PRE_NO_ERROR();
        BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
        BT_ASSERT_PRE_NON_NULL(trace, "Trace");
        BT_ASSERT_PRE(!stream_class->assigns_automatic_stream_id,
@@ -211,6 +205,7 @@ const char *bt_stream_get_name(const struct bt_stream *stream)
 enum bt_stream_set_name_status bt_stream_set_name(struct bt_stream *stream,
                const char *name)
 {
+       BT_ASSERT_PRE_NO_ERROR();
        BT_ASSERT_PRE_NON_NULL(stream, "Stream");
        BT_ASSERT_PRE_NON_NULL(name, "Name");
        BT_ASSERT_PRE_DEV_STREAM_HOT(stream);
@@ -230,10 +225,38 @@ BT_HIDDEN
 void _bt_stream_freeze(const struct bt_stream *stream)
 {
        BT_ASSERT(stream);
+       BT_LIB_LOGD("Freezing stream's user attributes: %!+v",
+               stream->user_attributes);
+       bt_value_freeze(stream->user_attributes);
        BT_LIB_LOGD("Freezing stream: %!+s", stream);
        ((struct bt_stream *) stream)->frozen = true;
 }
 
+const struct bt_value *bt_stream_borrow_user_attributes_const(
+               const struct bt_stream *stream)
+{
+       BT_ASSERT_PRE_DEV_NON_NULL(stream, "Stream");
+       return stream->user_attributes;
+}
+
+struct bt_value *bt_stream_borrow_user_attributes(struct bt_stream *stream)
+{
+       return (void *) bt_stream_borrow_user_attributes_const((void *) stream);
+}
+
+void bt_stream_set_user_attributes(struct bt_stream *stream,
+               const struct bt_value *user_attributes)
+{
+       BT_ASSERT_PRE_NON_NULL(stream, "Stream");
+       BT_ASSERT_PRE_NON_NULL(user_attributes, "User attributes");
+       BT_ASSERT_PRE(user_attributes->type == BT_VALUE_TYPE_MAP,
+               "User attributes object is not a map value object.");
+       BT_ASSERT_PRE_DEV_STREAM_HOT(stream);
+       bt_object_put_ref_no_null_check(stream->user_attributes);
+       stream->user_attributes = (void *) user_attributes;
+       bt_object_get_ref_no_null_check(stream->user_attributes);
+}
+
 void bt_stream_get_ref(const struct bt_stream *stream)
 {
        bt_object_get_ref(stream);