/*
- * stream.c
+ * stream-class.c
*
- * Babeltrace CTF Writer
+ * Babeltrace CTF IR - Stream Class
*
* Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
*
struct bt_ctf_stream_class *bt_ctf_stream_class_create(const char *name)
{
+ int ret;
struct bt_ctf_stream_class *stream_class = NULL;
if (!name || !strlen(name)) {
goto error_destroy;
}
+ ret = init_packet_context(stream_class, BT_CTF_BYTE_ORDER_NATIVE);
+ if (ret) {
+ goto error_destroy;
+ }
+
bt_ctf_ref_init(&stream_class->ref_count);
return stream_class;
return stream_class;
}
+const char *bt_ctf_stream_class_get_name(
+ struct bt_ctf_stream_class *stream_class)
+{
+ const char *name = NULL;
+
+ if (!stream_class) {
+ goto end;
+ }
+
+ name = stream_class->name->str;
+end:
+ return name;
+}
+
+struct bt_ctf_clock *bt_ctf_stream_class_get_clock(
+ struct bt_ctf_stream_class *stream_class)
+{
+ struct bt_ctf_clock *clock = NULL;
+
+ if (!stream_class || !stream_class->clock) {
+ goto end;
+ }
+
+ clock = stream_class->clock;
+ bt_ctf_clock_get(clock);
+end:
+ return clock;
+}
+
int bt_ctf_stream_class_set_clock(struct bt_ctf_stream_class *stream_class,
struct bt_ctf_clock *clock)
{
return ret;
}
+int64_t bt_ctf_stream_class_get_id(struct bt_ctf_stream_class *stream_class)
+{
+ int64_t ret;
+
+ if (!stream_class || !stream_class->id_set) {
+ ret = -1;
+ goto end;
+ }
+
+ ret = (int64_t) stream_class->id;
+end:
+ return ret;
+}
+
+int bt_ctf_stream_class_set_id(struct bt_ctf_stream_class *stream_class,
+ uint32_t id)
+{
+ int ret = 0;
+
+ if (!stream_class || stream_class->frozen) {
+ ret = -1;
+ goto end;
+ }
+
+ stream_class->id = id;
+ stream_class->id_set = 1;
+end:
+ return ret;
+}
+
int bt_ctf_stream_class_add_event_class(
struct bt_ctf_stream_class *stream_class,
struct bt_ctf_event_class *event_class)
{
int ret = 0;
+ int64_t event_id;
if (!stream_class || !event_class) {
ret = -1;
goto end;
}
- if (bt_ctf_event_class_set_id(event_class,
- stream_class->next_event_id++)) {
- /* The event is already associated to a stream class */
- ret = -1;
+ /* Only set an event id if none was explicitly set before */
+ event_id = bt_ctf_event_class_get_id(event_class);
+ if (event_id < 0) {
+ if (bt_ctf_event_class_set_id(event_class,
+ stream_class->next_event_id++)) {
+ ret = -1;
+ goto end;
+ }
+ }
+
+ ret = bt_ctf_event_class_set_stream_class(event_class, stream_class);
+ if (ret) {
goto end;
}
return ret;
}
+int bt_ctf_stream_class_get_event_class_count(
+ struct bt_ctf_stream_class *stream_class)
+{
+ int ret;
+
+ if (!stream_class) {
+ ret = -1;
+ goto end;
+ }
+
+ ret = (int) stream_class->event_classes->len;
+end:
+ return ret;
+}
+
+struct bt_ctf_event_class *bt_ctf_stream_class_get_event_class(
+ struct bt_ctf_stream_class *stream_class, int index)
+{
+ struct bt_ctf_event_class *event_class = NULL;
+
+ if (!stream_class || index < 0 ||
+ index >= stream_class->event_classes->len) {
+ goto end;
+ }
+
+ event_class = g_ptr_array_index(stream_class->event_classes, index);
+ bt_ctf_event_class_get(event_class);
+end:
+ return event_class;
+}
+
+struct bt_ctf_event_class *bt_ctf_stream_class_get_event_class_by_name(
+ struct bt_ctf_stream_class *stream_class, const char *name)
+{
+ size_t i;
+ GQuark name_quark;
+ struct bt_ctf_event_class *event_class = NULL;
+
+ if (!stream_class || !name) {
+ goto end;
+ }
+
+ name_quark = g_quark_try_string(name);
+ if (!name_quark) {
+ goto end;
+ }
+
+ for (i = 0; i < stream_class->event_classes->len; i++) {
+ struct bt_ctf_event_class *current_event_class =
+ g_ptr_array_index(stream_class->event_classes, i);
+
+ if (name_quark == current_event_class->name) {
+ event_class = current_event_class;
+ bt_ctf_event_class_get(event_class);
+ goto end;
+ }
+ }
+end:
+ return event_class;
+}
+
+struct bt_ctf_field_type *bt_ctf_stream_class_get_packet_context_type(
+ struct bt_ctf_stream_class *stream_class)
+{
+ struct bt_ctf_field_type *ret = NULL;
+
+ if (!stream_class) {
+ goto end;
+ }
+
+ assert(stream_class->packet_context_type);
+ bt_ctf_field_type_get(stream_class->packet_context_type);
+ ret = stream_class->packet_context_type;
+end:
+ return ret;
+}
+
+int bt_ctf_stream_class_set_packet_context_type(
+ struct bt_ctf_stream_class *stream_class,
+ struct bt_ctf_field_type *packet_context_type)
+{
+ int ret = 0;
+
+ if (!stream_class || !packet_context_type || stream_class->frozen) {
+ ret = -1;
+ goto end;
+ }
+
+ assert(stream_class->packet_context_type);
+ if (bt_ctf_field_type_get_type_id(packet_context_type) !=
+ CTF_TYPE_STRUCT) {
+ /* A packet context must be a structure */
+ ret = -1;
+ goto end;
+ }
+
+ bt_ctf_field_type_put(stream_class->packet_context_type);
+ bt_ctf_field_type_get(packet_context_type);
+ stream_class->packet_context_type = packet_context_type;
+end:
+ return ret;
+}
+
+struct bt_ctf_field_type *bt_ctf_stream_class_get_event_context_type(
+ struct bt_ctf_stream_class *stream_class)
+{
+ struct bt_ctf_field_type *ret = NULL;
+
+ if (!stream_class || !stream_class->event_context_type) {
+ goto end;
+ }
+
+ assert(stream_class->event_context_type);
+ bt_ctf_field_type_get(stream_class->event_context_type);
+ ret = stream_class->event_context_type;
+end:
+ return ret;
+}
+
+int bt_ctf_stream_class_set_event_context_type(
+ struct bt_ctf_stream_class *stream_class,
+ struct bt_ctf_field_type *event_context_type)
+{
+ int ret = 0;
+
+ if (!stream_class || !event_context_type || stream_class->frozen) {
+ ret = -1;
+ goto end;
+ }
+
+ if (bt_ctf_field_type_get_type_id(event_context_type) !=
+ CTF_TYPE_STRUCT) {
+ /* A packet context must be a structure */
+ ret = -1;
+ goto end;
+ }
+
+ bt_ctf_field_type_put(stream_class->event_context_type);
+ bt_ctf_field_type_get(event_context_type);
+ stream_class->event_context_type = event_context_type;
+end:
+ return ret;
+}
+
void bt_ctf_stream_class_get(struct bt_ctf_stream_class *stream_class)
{
if (!stream_class) {
}
stream_class->frozen = 1;
+ bt_ctf_field_type_freeze(stream_class->packet_context_type);
+ bt_ctf_field_type_freeze(stream_class->event_context_type);
bt_ctf_clock_freeze(stream_class->clock);
g_ptr_array_foreach(stream_class->event_classes,
(GFunc)bt_ctf_event_class_freeze, NULL);
}
-BT_HIDDEN
-int bt_ctf_stream_class_set_id(struct bt_ctf_stream_class *stream_class,
- uint32_t id)
-{
- int ret = 0;
-
- if (!stream_class ||
- (stream_class->id_set && (id != stream_class->id))) {
- ret = -1;
- goto end;
- }
-
- stream_class->id = id;
- stream_class->id_set = 1;
-end:
- return ret;
-}
-
BT_HIDDEN
int bt_ctf_stream_class_set_byte_order(struct bt_ctf_stream_class *stream_class,
enum bt_ctf_byte_order byte_order)
{
int ret = 0;
- ret = init_packet_context(stream_class, byte_order);
- if (ret) {
- goto end;
- }
-
ret = init_event_header(stream_class, byte_order);
if (ret) {
goto end;
int bt_ctf_stream_class_serialize(struct bt_ctf_stream_class *stream_class,
struct metadata_context *context)
{
- int ret = 0;
+ int64_t ret = 0;
size_t i;
g_string_assign(context->field_name, "");
}
g_string_append(context->string, ";\n};\n\n");
-
- /* Assign this stream's ID to every event and serialize them */
- g_ptr_array_foreach(stream_class->event_classes,
- (GFunc) bt_ctf_event_class_set_stream_id,
- GUINT_TO_POINTER(stream_class->id));
for (i = 0; i < stream_class->event_classes->len; i++) {
struct bt_ctf_event_class *event_class =
stream_class->event_classes->pdata[i];
- ret = bt_ctf_event_class_set_stream_id(event_class,
- stream_class->id);
- if (ret) {
- goto end;
- }
-
ret = bt_ctf_event_class_serialize(event_class, context);
if (ret) {
goto end;
bt_ctf_clock_put(stream_class->clock);
if (stream_class->event_classes) {
+ size_t i;
+
+ /* Unregister this stream class from the event classes */
+ for (i = 0; i < stream_class->event_classes->len; i++) {
+ struct bt_ctf_event_class *event_class =
+ g_ptr_array_index(stream_class->event_classes,
+ i);
+
+ bt_ctf_event_class_set_stream_class(event_class, NULL);
+ }
+
g_ptr_array_free(stream_class->event_classes, TRUE);
}
bt_ctf_field_type_put(stream_class->event_header_type);
bt_ctf_field_put(stream_class->event_header);
bt_ctf_field_type_put(stream_class->packet_context_type);
- bt_ctf_field_put(stream_class->packet_context);
- bt_ctf_field_type_put(stream_class->event_context_type);
- bt_ctf_field_put(stream_class->event_context);
+ if (stream_class->event_context_type) {
+ bt_ctf_field_type_put(stream_class->event_context_type);
+ }
g_free(stream_class);
}
}
stream_class->packet_context_type = packet_context_type;
- stream_class->packet_context = bt_ctf_field_create(packet_context_type);
- if (!stream_class->packet_context) {
- ret = -1;
- }
end:
if (ret) {
bt_ctf_field_type_put(packet_context_type);
projects / babeltrace.git / blobdiff