#include <babeltrace/types.h>
#include <babeltrace/ctf/types.h>
#include <babeltrace/ctf-ir/metadata.h>
+#include <stdarg.h>
struct stream_saved_pos {
/*
GArray *stream_saved_pos; /* Contains struct stream_saved_pos */
};
+struct bt_callback {
+ int prio; /* Callback order priority. Lower first. Dynamically assigned from dependency graph. */
+ void *private_data;
+ enum bt_cb_ret (*callback)(void *private_data, void *caller_data);
+};
+
+struct bt_callback_chain {
+ GArray *callback; /* Array of struct bt_callback, ordered by priority */
+};
+
+/*
+ * per id callbacks need to be per stream class because event ID vs
+ * event name mapping can vary from stream to stream.
+ */
+struct bt_stream_callbacks {
+ GArray *per_id_callbacks; /* Array of struct bt_callback_chain */
+};
+
/*
* struct babeltrace_iter: data structure representing an iterator on a trace
* collection.
struct ptr_heap *stream_heap;
struct trace_collection *tc;
struct trace_collection_pos *end_pos;
+ GArray *callbacks; /* Array of struct bt_stream_hooks */
+ struct bt_callback_chain main_callbacks; /* For all events */
+ /*
+ * Flag indicating if dependency graph needs to be recalculated.
+ * Set by babeltrace_iter_add_callback(), and checked (and
+ * cleared) by upon entry into babeltrace_iter_read_event().
+ * babeltrace_iter_read_event() is responsible for calling dep
+ * graph calculation if it sees this flag set.
+ */
+ int recalculate_dep_graph;
+ /*
+ * Array of pointers to struct bt_dependencies, for garbage
+ * collection. We're not using a linked list here because each
+ * struct bt_dependencies can belong to more than one
+ * babeltrace_iter.
+ */
+ GPtrArray *dep_gc;
};
+struct bt_dependencies {
+ GArray *deps; /* Array of GQuarks */
+ int refcount; /* free when decremented to 0 */
+};
+
+static
+struct bt_dependencies *_babeltrace_dependencies_create(const char *first,
+ va_list ap)
+{
+ const char *iter;
+ struct bt_dependencies *dep;
+
+ dep = g_new0(struct bt_dependencies, 1);
+ dep->refcount = 1;
+ dep->deps = g_array_new(FALSE, TRUE, sizeof(GQuark));
+ iter = first;
+ while (iter) {
+ GQuark q = g_quark_from_string(iter);
+ g_array_append_val(dep->deps, q);
+ iter = va_arg(ap, const char *);
+ }
+ return dep;
+}
+
+struct bt_dependencies *babeltrace_dependencies_create(const char *first, ...)
+{
+ va_list ap;
+ struct bt_dependencies *deps;
+
+ va_start(ap, first);
+ deps = _babeltrace_dependencies_create(first, ap);
+ va_end(ap);
+ return deps;
+}
+
static int stream_read_event(struct ctf_file_stream *sin)
{
int ret;