/*
- * event-class.c
- *
- * Babeltrace trace IR - Event class
- *
+ * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
* 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
*/
#define BT_LOG_TAG "EVENT-CLASS"
-#include <babeltrace/lib-logging-internal.h>
-
-#include <babeltrace/assert-pre-internal.h>
-#include <babeltrace/trace-ir/clock-value-internal.h>
-#include <babeltrace/trace-ir/fields-internal.h>
-#include <babeltrace/trace-ir/field-classes.h>
-#include <babeltrace/trace-ir/field-classes-internal.h>
-#include <babeltrace/trace-ir/event-class.h>
-#include <babeltrace/trace-ir/event-class-internal.h>
-#include <babeltrace/trace-ir/event-internal.h>
-#include <babeltrace/trace-ir/stream-class.h>
-#include <babeltrace/trace-ir/stream-class-internal.h>
-#include <babeltrace/trace-ir/trace-internal.h>
-#include <babeltrace/trace-ir/utils-internal.h>
-#include <babeltrace/trace-ir/resolve-field-path-internal.h>
-#include <babeltrace/object.h>
-#include <babeltrace/trace-ir/attributes-internal.h>
-#include <babeltrace/compiler-internal.h>
-#include <babeltrace/endian-internal.h>
-#include <babeltrace/types.h>
-#include <babeltrace/values-internal.h>
-#include <babeltrace/assert-internal.h>
+#include <babeltrace2/lib-logging-internal.h>
+
+#include <babeltrace2/assert-pre-internal.h>
+#include <babeltrace2/trace-ir/clock-snapshot-internal.h>
+#include <babeltrace2/trace-ir/field-internal.h>
+#include <babeltrace2/trace-ir/field-class.h>
+#include <babeltrace2/trace-ir/field-class-internal.h>
+#include <babeltrace2/trace-ir/event-class.h>
+#include <babeltrace2/trace-ir/event-class-const.h>
+#include <babeltrace2/trace-ir/event-class-internal.h>
+#include <babeltrace2/trace-ir/event-internal.h>
+#include <babeltrace2/trace-ir/stream-class.h>
+#include <babeltrace2/trace-ir/stream-class-internal.h>
+#include <babeltrace2/trace-ir/trace-internal.h>
+#include <babeltrace2/trace-ir/utils-internal.h>
+#include <babeltrace2/trace-ir/resolve-field-path-internal.h>
+#include <babeltrace2/trace-ir/attributes-internal.h>
+#include <babeltrace2/compiler-internal.h>
+#include <babeltrace2/endian-internal.h>
+#include <babeltrace2/types.h>
+#include <babeltrace2/value-internal.h>
+#include <babeltrace2/assert-internal.h>
#include <inttypes.h>
#include <stdlib.h>
#define BT_ASSERT_PRE_EVENT_CLASS_HOT(_ec) \
- BT_ASSERT_PRE_HOT((_ec), "Event class", ": %!+E", (_ec))
+ BT_ASSERT_PRE_HOT(((const struct bt_event_class *) (_ec)), \
+ "Event class", ": %!+E", (_ec))
static
void destroy_event_class(struct bt_object *obj)
if (event_class->name.str) {
g_string_free(event_class->name.str, TRUE);
+ event_class->name.str = NULL;
}
if (event_class->emf_uri.str) {
g_string_free(event_class->emf_uri.str, TRUE);
+ event_class->emf_uri.str = NULL;
}
- BT_LOGD_STR("Putting context field classe.");
- bt_object_put_ref(event_class->specific_context_fc);
- BT_LOGD_STR("Putting payload field classe.");
- bt_object_put_ref(event_class->payload_fc);
+ BT_LOGD_STR("Putting context field class.");
+ BT_OBJECT_PUT_REF_AND_RESET(event_class->specific_context_fc);
+ BT_LOGD_STR("Putting payload field class.");
+ BT_OBJECT_PUT_REF_AND_RESET(event_class->payload_fc);
bt_object_pool_finalize(&event_class->event_pool);
g_free(obj);
}
BT_ASSERT_PRE_FUNC
static
-bool event_class_id_is_unique(struct bt_stream_class *stream_class, uint64_t id)
+bool event_class_id_is_unique(const struct bt_stream_class *stream_class,
+ uint64_t id)
{
uint64_t i;
bool is_unique = true;
for (i = 0; i < stream_class->event_classes->len; i++) {
- struct bt_event_class *ec =
+ const struct bt_event_class *ec =
stream_class->event_classes->pdata[i];
if (ec->id == id) {
return create_event_class_with_id(stream_class, id);
}
-const char *bt_event_class_get_name(struct bt_event_class *event_class)
+const char *bt_event_class_get_name(const struct bt_event_class *event_class)
{
BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
return event_class->name.value;
}
-int bt_event_class_set_name(struct bt_event_class *event_class,
- const char *name)
+enum bt_event_class_status bt_event_class_set_name(
+ struct bt_event_class *event_class, const char *name)
{
BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
BT_ASSERT_PRE_NON_NULL(name, "Name");
g_string_assign(event_class->name.str, name);
event_class->name.value = event_class->name.str->str;
BT_LIB_LOGV("Set event class's name: %!+E", event_class);
- return 0;
+ return BT_EVENT_CLASS_STATUS_OK;
}
-uint64_t bt_event_class_get_id(struct bt_event_class *event_class)
+uint64_t bt_event_class_get_id(const struct bt_event_class *event_class)
{
BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
return event_class->id;
}
enum bt_property_availability bt_event_class_get_log_level(
- struct bt_event_class *event_class,
+ const struct bt_event_class *event_class,
enum bt_event_class_log_level *log_level)
{
BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
return event_class->log_level.base.avail;
}
-int bt_event_class_set_log_level(struct bt_event_class *event_class,
+void bt_event_class_set_log_level(
+ struct bt_event_class *event_class,
enum bt_event_class_log_level log_level)
{
BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
bt_property_uint_set(&event_class->log_level,
(uint64_t) log_level);
BT_LIB_LOGV("Set event class's log level: %!+E", event_class);
- return 0;
}
-const char *bt_event_class_get_emf_uri(struct bt_event_class *event_class)
+const char *bt_event_class_get_emf_uri(const struct bt_event_class *event_class)
{
BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
return event_class->emf_uri.value;
}
-int bt_event_class_set_emf_uri(struct bt_event_class *event_class,
+enum bt_event_class_status bt_event_class_set_emf_uri(
+ struct bt_event_class *event_class,
const char *emf_uri)
{
BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
g_string_assign(event_class->emf_uri.str, emf_uri);
event_class->emf_uri.value = event_class->emf_uri.str->str;
BT_LIB_LOGV("Set event class's EMF URI: %!+E", event_class);
- return 0;
+ return BT_EVENT_CLASS_STATUS_OK;
}
struct bt_stream_class *bt_event_class_borrow_stream_class(
return bt_event_class_borrow_stream_class_inline(event_class);
}
-struct bt_field_class *bt_event_class_borrow_specific_context_field_class(
+const struct bt_stream_class *
+bt_event_class_borrow_stream_class_const(
+ const struct bt_event_class *event_class)
+{
+ return bt_event_class_borrow_stream_class((void *) event_class);
+}
+
+const struct bt_field_class *
+bt_event_class_borrow_specific_context_field_class_const(
+ const struct bt_event_class *event_class)
+{
+ BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
+ return event_class->specific_context_fc;
+}
+
+struct bt_field_class *
+bt_event_class_borrow_specific_context_field_class(
struct bt_event_class *event_class)
{
BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
return event_class->specific_context_fc;
}
-int bt_event_class_set_specific_context_field_class(
+enum bt_event_class_status bt_event_class_set_specific_context_field_class(
struct bt_event_class *event_class,
struct bt_field_class *field_class)
{
int ret;
struct bt_stream_class *stream_class;
- struct bt_trace *trace;
struct bt_resolve_field_path_context resolve_ctx = {
- .packet_header = NULL,
.packet_context = NULL,
- .event_header = NULL,
.event_common_context = NULL,
.event_specific_context = field_class,
.event_payload = NULL,
BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
BT_ASSERT_PRE(bt_field_class_get_type(field_class) ==
BT_FIELD_CLASS_TYPE_STRUCTURE,
- "Specific context field classe is not a structure field classe: "
+ "Specific context field class is not a structure field class: "
"%!+F", field_class);
stream_class = bt_event_class_borrow_stream_class_inline(
event_class);
- trace = bt_stream_class_borrow_trace_inline(stream_class);
- resolve_ctx.packet_header = trace->packet_header_fc;
resolve_ctx.packet_context = stream_class->packet_context_fc;
- resolve_ctx.event_header = stream_class->event_header_fc;
resolve_ctx.event_common_context =
stream_class->event_common_context_fc;
ret = bt_resolve_field_paths(field_class, &resolve_ctx);
if (ret) {
+ /*
+ * This is the only reason for which
+ * bt_resolve_field_paths() can fail: anything else
+ * would be because a precondition is not satisfied.
+ */
+ ret = BT_EVENT_CLASS_STATUS_NOMEM;
goto end;
}
- bt_field_class_make_part_of_trace(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 = bt_object_get_ref(field_class);
+ event_class->specific_context_fc = field_class;
+ bt_object_get_no_null_check(event_class->specific_context_fc);
bt_field_class_freeze(field_class);
- BT_LIB_LOGV("Set event class's specific context field classe: %!+E",
+ BT_LIB_LOGV("Set event class's specific context field class: %!+E",
event_class);
end:
return ret;
}
+const struct bt_field_class *bt_event_class_borrow_payload_field_class_const(
+ const struct bt_event_class *event_class)
+{
+ BT_ASSERT_PRE_NON_NULL(event_class, "Event class");
+ return event_class->payload_fc;
+}
+
struct bt_field_class *bt_event_class_borrow_payload_field_class(
struct bt_event_class *event_class)
{
return event_class->payload_fc;
}
-int bt_event_class_set_payload_field_class(struct bt_event_class *event_class,
+enum bt_event_class_status bt_event_class_set_payload_field_class(
+ struct bt_event_class *event_class,
struct bt_field_class *field_class)
{
int ret;
struct bt_stream_class *stream_class;
- struct bt_trace *trace;
struct bt_resolve_field_path_context resolve_ctx = {
- .packet_header = NULL,
.packet_context = NULL,
- .event_header = NULL,
.event_common_context = NULL,
.event_specific_context = NULL,
.event_payload = field_class,
BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class);
BT_ASSERT_PRE(bt_field_class_get_type(field_class) ==
BT_FIELD_CLASS_TYPE_STRUCTURE,
- "Payload field classe is not a structure field classe: %!+F",
+ "Payload field class is not a structure field class: %!+F",
field_class);
stream_class = bt_event_class_borrow_stream_class_inline(
event_class);
- trace = bt_stream_class_borrow_trace_inline(stream_class);
- resolve_ctx.packet_header = trace->packet_header_fc;
resolve_ctx.packet_context = stream_class->packet_context_fc;
- resolve_ctx.event_header = stream_class->event_header_fc;
resolve_ctx.event_common_context =
stream_class->event_common_context_fc;
resolve_ctx.event_specific_context = event_class->specific_context_fc;
ret = bt_resolve_field_paths(field_class, &resolve_ctx);
if (ret) {
+ /*
+ * This is the only reason for which
+ * bt_resolve_field_paths() can fail: anything else
+ * would be because a precondition is not satisfied.
+ */
+ ret = BT_EVENT_CLASS_STATUS_NOMEM;
goto end;
}
- bt_field_class_make_part_of_trace(field_class);
+ bt_field_class_make_part_of_trace_class(field_class);
bt_object_put_ref(event_class->payload_fc);
- event_class->payload_fc = bt_object_get_ref(field_class);
+ event_class->payload_fc = field_class;
+ bt_object_get_no_null_check(event_class->payload_fc);
bt_field_class_freeze(field_class);
- BT_LIB_LOGV("Set event class's payload field classe: %!+E", event_class);
+ BT_LIB_LOGV("Set event class's payload field class: %!+E", event_class);
end:
return ret;
}
BT_HIDDEN
-void _bt_event_class_freeze(struct bt_event_class *event_class)
+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: %!+E", event_class);
- event_class->frozen = true;
+ ((struct bt_event_class *) event_class)->frozen = true;
+}
+
+void bt_event_class_get_ref(const struct bt_event_class *event_class)
+{
+ bt_object_get_ref(event_class);
+}
+
+void bt_event_class_put_ref(const struct bt_event_class *event_class)
+{
+ bt_object_put_ref(event_class);
}
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