Add the concept of a static trace

[babeltrace.git] / lib / ctf-ir / trace.c

diff --git a/lib/ctf-ir/trace.c b/lib/ctf-ir/trace.c
index 9514c6d7ffa58a464d87ea7601af46551263856f..067e7db903d0937d494f6aecaa909270313bf06d 100644 (file)
--- a/lib/ctf-ir/trace.c
+++ b/lib/ctf-ir/trace.c
@@ -389,7 +389,8 @@ int bt_ctf_trace_add_clock_class(struct bt_ctf_trace *trace,
 {
        int ret = 0;
 
-       if (!trace || !bt_ctf_clock_class_is_valid(clock_class)) {
+       if (!trace || trace->is_static ||
+                       !bt_ctf_clock_class_is_valid(clock_class)) {
                ret = -1;
                goto end;
        }
@@ -457,7 +458,7 @@ int bt_ctf_trace_add_stream_class(struct bt_ctf_trace *trace,
        int event_class_count;
        struct bt_ctf_trace *current_parent_trace = NULL;
 
-       if (!trace || !stream_class) {
+       if (!trace || !stream_class || trace->is_static) {
                ret = -1;
                goto end;
        }
@@ -715,6 +716,36 @@ end:
        return ret;
 }
 
+int bt_ctf_trace_get_stream_count(struct bt_ctf_trace *trace)
+{
+       int ret;
+
+       if (!trace) {
+               ret = -1;
+               goto end;
+       }
+
+       ret = trace->streams->len;
+
+end:
+       return ret;
+}
+
+struct bt_ctf_stream *bt_ctf_trace_get_stream(struct bt_ctf_trace *trace,
+               int index)
+{
+       struct bt_ctf_stream *stream = NULL;
+
+       if (!trace || index >= trace->streams->len) {
+               goto end;
+       }
+
+       stream = bt_get(g_ptr_array_index(trace->streams, index));
+
+end:
+       return stream;
+}
+
 int bt_ctf_trace_get_stream_class_count(struct bt_ctf_trace *trace)
 {
        int ret;
@@ -1270,3 +1301,33 @@ end:
        bt_put(trace_packet_header_type);
        return ret;
 }
+
+bool bt_ctf_trace_is_static(struct bt_ctf_trace *trace)
+{
+       bool is_static = false;
+
+       if (!trace) {
+               goto end;
+       }
+
+       is_static = trace->is_static;
+
+end:
+       return is_static;
+}
+
+int bt_ctf_trace_set_is_static(struct bt_ctf_trace *trace)
+{
+       int ret = 0;
+
+       if (!trace) {
+               ret = -1;
+               goto end;
+       }
+
+       trace->is_static = true;
+       bt_ctf_trace_freeze(trace);
+
+end:
+       return ret;
+}