Move to kernel style SPDX license identifiers
[babeltrace.git] / src / lib / trace-ir / event-class.c
index c5e5230e160d049b46f80da2445716de274762bb..67e4f3a5c97df4ddbcbe524fd95271b4e372bb26 100644 (file)
@@ -1,24 +1,8 @@
 /*
+ * 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/EVENT-CLASS"
@@ -27,7 +11,6 @@
 #include "lib/assert-pre.h"
 #include <babeltrace2/trace-ir/field-class.h>
 #include <babeltrace2/trace-ir/event-class.h>
-#include <babeltrace2/trace-ir/event-class-const.h>
 #include <babeltrace2/trace-ir/stream-class.h>
 #include "compat/compiler.h"
 #include "compat/endian.h"
@@ -35,6 +18,7 @@
 #include "lib/value.h"
 #include "common/assert.h"
 #include <inttypes.h>
+#include <stdbool.h>
 #include <stdlib.h>
 
 #include "attributes.h"
@@ -59,6 +43,7 @@ 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);
+       BT_OBJECT_PUT_REF_AND_RESET(event_class->user_attributes);
 
        if (event_class->name.str) {
                g_string_free(event_class->name.str, TRUE);
@@ -127,21 +112,26 @@ struct bt_event_class *create_event_class_with_id(
 
        bt_object_init_shared_with_parent(&event_class->base,
                destroy_event_class);
+       event_class->user_attributes = bt_value_map_create();
+       if (!event_class->user_attributes) {
+               BT_LIB_LOGE_APPEND_CAUSE(
+                       "Failed to create a map value object.");
+               goto error;
+       }
+
        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_LIB_LOGE_APPEND_CAUSE("Failed to allocate a GString.");
-               ret = -1;
-               goto end;
+               goto error;
        }
 
        event_class->emf_uri.str = g_string_new(NULL);
        if (!event_class->emf_uri.str) {
                BT_LIB_LOGE_APPEND_CAUSE("Failed to allocate a GString.");
-               ret = -1;
-               goto end;
+               goto error;
        }
 
        ret = bt_object_pool_initialize(&event_class->event_pool,
@@ -171,6 +161,7 @@ end:
 struct bt_event_class *bt_event_class_create(
                struct bt_stream_class *stream_class)
 {
+       BT_ASSERT_PRE_NO_ERROR();
        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: "
@@ -182,6 +173,7 @@ struct bt_event_class *bt_event_class_create(
 struct bt_event_class *bt_event_class_create_with_id(
                struct bt_stream_class *stream_class, uint64_t id)
 {
+       BT_ASSERT_PRE_NO_ERROR();
        BT_ASSERT_PRE(!stream_class->assigns_automatic_event_class_id,
                "Stream class automatically assigns event class IDs: "
                "%![sc-]+S", stream_class);
@@ -197,6 +189,7 @@ const char *bt_event_class_get_name(const struct bt_event_class *event_class)
 enum bt_event_class_set_name_status bt_event_class_set_name(
                struct bt_event_class *event_class, const char *name)
 {
+       BT_ASSERT_PRE_NO_ERROR();
        BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
        BT_ASSERT_PRE_NON_NULL(name, "Name");
        BT_ASSERT_PRE_DEV_EVENT_CLASS_HOT(event_class);
@@ -244,6 +237,7 @@ enum bt_event_class_set_emf_uri_status bt_event_class_set_emf_uri(
                struct bt_event_class *event_class,
                const char *emf_uri)
 {
+       BT_ASSERT_PRE_NO_ERROR();
        BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
        BT_ASSERT_PRE_NON_NULL(emf_uri, "EMF URI");
        BT_ASSERT_PRE_DEV_EVENT_CLASS_HOT(event_class);
@@ -297,6 +291,7 @@ bt_event_class_set_specific_context_field_class(
                .event_payload = NULL,
        };
 
+       BT_ASSERT_PRE_NO_ERROR();
        BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
        BT_ASSERT_PRE_NON_NULL(field_class, "Field class");
        BT_ASSERT_PRE_DEV_EVENT_CLASS_HOT(event_class);
@@ -324,7 +319,7 @@ bt_event_class_set_specific_context_field_class(
        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_object_get_ref_no_null_check(event_class->specific_context_fc);
        bt_field_class_freeze(field_class);
        BT_LIB_LOGD("Set event class's specific context field class: %!+E",
                event_class);
@@ -361,6 +356,7 @@ bt_event_class_set_payload_field_class(
                .event_payload = field_class,
        };
 
+       BT_ASSERT_PRE_NO_ERROR();
        BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
        BT_ASSERT_PRE_NON_NULL(field_class, "Field class");
        BT_ASSERT_PRE_DEV_EVENT_CLASS_HOT(event_class);
@@ -389,7 +385,7 @@ bt_event_class_set_payload_field_class(
        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_object_get_ref_no_null_check(event_class->payload_fc);
        bt_field_class_freeze(field_class);
        BT_LIB_LOGD("Set event class's payload field class: %!+E", event_class);
 
@@ -402,10 +398,41 @@ 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's user attributes: %!+v",
+               event_class->user_attributes);
+       bt_value_freeze(event_class->user_attributes);
        BT_LIB_LOGD("Freezing event class: %!+E", event_class);
        ((struct bt_event_class *) event_class)->frozen = true;
 }
 
+const struct bt_value *bt_event_class_borrow_user_attributes_const(
+               const struct bt_event_class *event_class)
+{
+       BT_ASSERT_PRE_DEV_NON_NULL(event_class, "Event class");
+       return event_class->user_attributes;
+}
+
+struct bt_value *bt_event_class_borrow_user_attributes(
+               struct bt_event_class *event_class)
+{
+       return (void *) bt_event_class_borrow_user_attributes_const(
+               (void *) event_class);
+}
+
+void bt_event_class_set_user_attributes(
+               struct bt_event_class *event_class,
+               const struct bt_value *user_attributes)
+{
+       BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
+       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_EVENT_CLASS_HOT(event_class);
+       bt_object_put_ref_no_null_check(event_class->user_attributes);
+       event_class->user_attributes = (void *) user_attributes;
+       bt_object_get_ref_no_null_check(event_class->user_attributes);
+}
+
 void bt_event_class_get_ref(const struct bt_event_class *event_class)
 {
        bt_object_get_ref(event_class);
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