#include <babeltrace/ctf-ir/field-types-internal.h>
#include <babeltrace/ctf-ir/attributes-internal.h>
#include <babeltrace/ctf-ir/validation-internal.h>
+#include <babeltrace/ctf-ir/visitor-internal.h>
#include <babeltrace/ctf-ir/utils.h>
+#include <babeltrace/plugin/notification/schema.h>
#include <babeltrace/compiler.h>
#include <babeltrace/values.h>
#include <babeltrace/ref.h>
#define DEFAULT_IDENTIFIER_SIZE 128
#define DEFAULT_METADATA_STRING_SIZE 4096
+struct listener_wrapper {
+ bt_ctf_listener_cb listener;
+ void *data;
+};
+
static
void bt_ctf_trace_destroy(struct bt_object *obj);
static
goto error;
}
+ trace->listeners = g_ptr_array_new_with_free_func(
+ (GDestroyNotify) g_free);
+ if (!trace->listeners) {
+ goto error;
+ }
+
return trace;
error:
return trace;
}
+const char *bt_ctf_trace_get_name(struct bt_ctf_trace *trace)
+{
+ const char *name = NULL;
+
+ if (!trace || !trace->name) {
+ goto end;
+ }
+
+ name = trace->name->str;
+end:
+ return name;
+}
+
+int bt_ctf_trace_set_name(struct bt_ctf_trace *trace, const char *name)
+{
+ int ret = 0;
+
+ if (!trace || !name || trace->frozen) {
+ ret = -1;
+ goto end;
+ }
+
+ trace->name = trace->name ? g_string_assign(trace->name, name) :
+ g_string_new(name);
+ if (!trace->name) {
+ ret = -1;
+ goto end;
+ }
+end:
+ return ret;
+}
+
void bt_ctf_trace_destroy(struct bt_object *obj)
{
struct bt_ctf_trace *trace;
bt_ctf_attributes_destroy(trace->environment);
}
+ if (trace->name) {
+ g_string_free(trace->name, TRUE);
+ }
+
if (trace->clocks) {
g_ptr_array_free(trace->clocks, TRUE);
}
g_ptr_array_free(trace->stream_classes, TRUE);
}
- bt_put(trace->packet_header_type);
- g_free(trace);
-}
-
-struct bt_ctf_stream *bt_ctf_trace_create_stream(struct bt_ctf_trace *trace,
- struct bt_ctf_stream_class *stream_class)
-{
- int ret;
- int stream_class_found = 0;
- size_t i;
- struct bt_ctf_stream *stream = NULL;
-
- if (!trace || !stream_class) {
- goto error;
- }
-
- for (i = 0; i < trace->stream_classes->len; i++) {
- if (trace->stream_classes->pdata[i] == stream_class) {
- stream_class_found = 1;
- }
- }
-
- if (!stream_class_found) {
- ret = bt_ctf_trace_add_stream_class(trace, stream_class);
- if (ret) {
- goto error;
- }
- }
-
- stream = bt_ctf_stream_create(stream_class, trace);
- if (!stream) {
- goto error;
+ if (trace->listeners) {
+ g_ptr_array_free(trace->listeners, TRUE);
}
- g_ptr_array_add(trace->streams, stream);
- return stream;
-error:
- BT_PUT(stream);
- return stream;
+ bt_put(trace->packet_header_type);
+ g_free(trace);
}
int bt_ctf_trace_set_environment_field(struct bt_ctf_trace *trace,
int ret = 0;
struct search_query query = { .value = clock, .found = 0 };
- if (!trace || !clock) {
+ if (!trace || !bt_ctf_clock_is_valid(clock)) {
ret = -1;
goto end;
}
bt_get(clock);
g_ptr_array_add(trace->clocks, clock);
+ if (!trace->is_created_by_writer) {
+ /*
+ * Non-writer mode trace: disable clock value functions
+ * because clock values are per-stream in that
+ * situation.
+ */
+ clock->has_value = 0;
+ }
+
if (trace->frozen) {
bt_ctf_clock_freeze(clock);
}
struct bt_ctf_field_type *event_header_type = NULL;
struct bt_ctf_field_type *stream_event_ctx_type = NULL;
int event_class_count;
+ struct bt_ctf_clock *clock_to_add_to_trace = NULL;
+ struct bt_ctf_trace *current_parent_trace = NULL;
if (!trace || !stream_class) {
ret = -1;
goto end;
}
+ current_parent_trace = bt_ctf_stream_class_get_trace(stream_class);
+ if (current_parent_trace) {
+ /* Stream class is already associated to a trace, abort. */
+ ret = -1;
+ goto end;
+ }
+
event_class_count =
bt_ctf_stream_class_get_event_class_count(stream_class);
assert(event_class_count >= 0);
}
}
+ /*
+ * If the stream class has a clock, register this clock to this
+ * trace if not already done.
+ */
+ if (stream_class->clock) {
+ const char *clock_name =
+ bt_ctf_clock_get_name(stream_class->clock);
+ struct bt_ctf_clock *trace_clock;
+
+ assert(clock_name);
+ trace_clock = bt_ctf_trace_get_clock_by_name(trace, clock_name);
+ bt_put(trace_clock);
+ if (trace_clock) {
+ if (trace_clock != stream_class->clock) {
+ /*
+ * Error: two different clocks in the
+ * trace would share the same name.
+ */
+ ret = -1;
+ goto end;
+ }
+ } else {
+ clock_to_add_to_trace = bt_get(stream_class->clock);
+ }
+ }
+
/*
* We're about to freeze both the trace and the stream class.
* Also, each event class contained in this stream class are
trace->byte_order);
bt_ctf_stream_class_set_byte_order(stream_class, trace->byte_order);
+ /* Add stream class's clock if it exists */
+ if (clock_to_add_to_trace) {
+ int add_clock_ret =
+ bt_ctf_trace_add_clock(trace, clock_to_add_to_trace);
+ assert(add_clock_ret == 0);
+ }
+
/*
* Freeze the trace and the stream class.
*/
bt_ctf_stream_class_freeze(stream_class);
bt_ctf_trace_freeze(trace);
+ /* Notifiy listeners of the trace's schema modification. */
+ bt_ctf_stream_class_visit(stream_class,
+ bt_ctf_trace_object_modification, trace);
end:
if (ret) {
bt_object_set_parent(stream_class, NULL);
g_free(ec_validation_outputs);
bt_ctf_validation_output_put_types(&trace_sc_validation_output);
+ BT_PUT(clock_to_add_to_trace);
+ bt_put(current_parent_trace);
assert(!packet_header_type);
assert(!packet_context_type);
assert(!event_header_type);
return ret;
}
+static
+int get_stream_class_count(void *element)
+{
+ return bt_ctf_trace_get_stream_class_count(
+ (struct bt_ctf_trace *) element);
+}
+
+static
+void *get_stream_class(void *element, int i)
+{
+ return bt_ctf_trace_get_stream_class(
+ (struct bt_ctf_trace *) element, i);
+}
+
+static
+int visit_stream_class(void *object, bt_ctf_visitor visitor,void *data)
+{
+ return bt_ctf_stream_class_visit(object, visitor, data);
+}
+
+int bt_ctf_trace_visit(struct bt_ctf_trace *trace,
+ bt_ctf_visitor visitor, void *data)
+{
+ int ret;
+ struct bt_ctf_object obj =
+ { .object = trace, .type = BT_CTF_OBJECT_TYPE_TRACE };
+
+ if (!trace || !visitor) {
+ ret = -1;
+ goto end;
+ }
+
+ ret = visitor_helper(&obj, get_stream_class_count,
+ get_stream_class, visit_stream_class, visitor, data);
+end:
+ return ret;
+}
+
+static
+int invoke_listener(struct bt_ctf_object *object, void *data)
+{
+ struct listener_wrapper *listener_wrapper = data;
+
+ listener_wrapper->listener(object, listener_wrapper->data);
+ return 0;
+}
+
+int bt_ctf_trace_add_listener(struct bt_ctf_trace *trace,
+ bt_ctf_listener_cb listener, void *listener_data)
+{
+ int ret = 0;
+ struct listener_wrapper *listener_wrapper =
+ g_new0(struct listener_wrapper, 1);
+
+ if (!trace || !listener || !listener_wrapper) {
+ ret = -1;
+ goto error;
+ }
+
+ listener_wrapper->listener = listener;
+ listener_wrapper->data = listener_data;
+
+ /* Visit the current schema. */
+ ret = bt_ctf_trace_visit(trace, invoke_listener, listener_wrapper);
+ if (ret) {
+ goto error;
+ }
+
+ /*
+ * Add listener to the array of callbacks which will be invoked on
+ * schema changes.
+ */
+ g_ptr_array_add(trace->listeners, listener_wrapper);
+ return ret;
+error:
+ g_free(listener_wrapper);
+ return ret;
+}
+
+BT_HIDDEN
+int bt_ctf_trace_object_modification(struct bt_ctf_object *object,
+ void *trace_ptr)
+{
+ size_t i;
+ struct bt_ctf_trace *trace = trace_ptr;
+
+ assert(trace);
+ assert(object);
+
+ if (trace->listeners->len == 0) {
+ goto end;
+ }
+
+ for (i = 0; i < trace->listeners->len; i++) {
+ struct listener_wrapper *listener =
+ g_ptr_array_index(trace->listeners, i);
+
+ listener->listener(object, listener->data);
+ }
+end:
+ return 0;
+}
+
BT_HIDDEN
struct bt_ctf_field_type *get_field_type(enum field_type_alias alias)
{
+ int ret;
unsigned int alignment, size;
struct bt_ctf_field_type *field_type = NULL;
alignment = field_type_aliases_alignments[alias];
size = field_type_aliases_sizes[alias];
field_type = bt_ctf_field_type_integer_create(size);
- bt_ctf_field_type_set_alignment(field_type, alignment);
+ ret = bt_ctf_field_type_set_alignment(field_type, alignment);
+ if (ret) {
+ BT_PUT(field_type);
+ }
end:
return field_type;
}
projects / babeltrace.git / blobdiff