API : export the offsetted timestamp

[babeltrace.git] / formats / ctf / events.c

diff --git a/formats/ctf/events.c b/formats/ctf/events.c
index 27643fcbc61f513ce6d7cc0b021e7d6aea4bd053..d14836b07135e25a447e23b68dd4c42e4f5229d6 100644 (file)
--- a/formats/ctf/events.c
+++ b/formats/ctf/events.c
@@ -49,11 +49,39 @@ struct bt_ctf_iter *bt_ctf_iter_create(struct bt_context *ctx,
                g_free(iter);
                return NULL;
        }
+       iter->callbacks = g_array_new(0, 1, sizeof(struct bt_stream_callbacks));
+       iter->recalculate_dep_graph = 0;
+       iter->main_callbacks.callback = NULL;
+       iter->dep_gc = g_ptr_array_new();
        return iter;
 }
 
 void bt_ctf_iter_destroy(struct bt_ctf_iter *iter)
 {
+       struct bt_stream_callbacks *bt_stream_cb;
+       struct bt_callback_chain *bt_chain;
+       int i, j;
+
+       /* free all events callbacks */
+       if (iter->main_callbacks.callback)
+               g_array_free(iter->main_callbacks.callback, TRUE);
+
+       /* free per-event callbacks */
+       for (i = 0; i < iter->callbacks->len; i++) {
+               bt_stream_cb = &g_array_index(iter->callbacks,
+                               struct bt_stream_callbacks, i);
+               if (!bt_stream_cb || !bt_stream_cb->per_id_callbacks)
+                       continue;
+               for (j = 0; j < bt_stream_cb->per_id_callbacks->len; j++) {
+                       bt_chain = &g_array_index(bt_stream_cb->per_id_callbacks,
+                                       struct bt_callback_chain, j);
+                       if (bt_chain->callback) {
+                               g_array_free(bt_chain->callback, TRUE);
+                       }
+               }
+               g_array_free(bt_stream_cb->per_id_callbacks, TRUE);
+       }
+
        bt_iter_fini(&iter->parent);
        g_free(iter);
 }
@@ -77,10 +105,10 @@ struct bt_ctf_event *bt_ctf_iter_read_event(struct bt_ctf_iter *iter)
        ret->event = g_ptr_array_index(ret->stream->events_by_id,
                        ret->stream->event_id);
 
-       if (ret->stream->stream_id > iter->parent.callbacks->len)
+       if (ret->stream->stream_id > iter->callbacks->len)
                goto end;
 
-       process_callbacks(&iter->parent, ret->stream);
+       process_callbacks(iter, ret->stream);
 
 end:
        return ret;
@@ -196,7 +224,7 @@ const char *bt_ctf_field_name(const struct definition *def)
        return NULL;
 }
 
-enum ctf_type_id bt_ctf_field_type(struct definition *def)
+enum ctf_type_id bt_ctf_field_type(const struct definition *def)
 {
        if (def)
                return def->declaration->id;
@@ -289,12 +317,39 @@ error:
        return -1;
 }
 
-uint64_t bt_ctf_get_timestamp(struct bt_ctf_event *event)
+uint64_t bt_ctf_get_timestamp_raw(struct bt_ctf_event *event)
 {
        if (event && event->stream->has_timestamp)
                return event->stream->timestamp;
        else
-               return 0;
+               return -1ULL;
+}
+
+uint64_t bt_ctf_get_timestamp(struct bt_ctf_event *event)
+{
+       uint64_t ts_nsec;
+       struct ctf_trace *trace;
+       struct trace_collection *tc;
+       uint64_t tc_offset;
+       uint64_t timestamp;
+
+       if (!event->stream->has_timestamp) {
+               return -1ULL;
+       }
+
+       trace = event->stream->stream_class->trace;
+       tc = trace->collection;
+       tc_offset = tc->single_clock_offset_avg;
+       timestamp = event->stream->timestamp;
+       if (event->stream->current_clock->freq == 1000000000ULL) {
+               ts_nsec = timestamp;
+       } else {
+               ts_nsec = (uint64_t) ((double) timestamp * 1000000000.0
+                               / (double) event->stream->current_clock->freq);
+       }
+       ts_nsec += tc_offset;
+
+       return ts_nsec;
 }
 
 static void bt_ctf_field_set_error(int error)
@@ -311,7 +366,7 @@ int bt_ctf_field_get_error(void)
        return ret;
 }
 
-uint64_t bt_ctf_get_uint64(struct definition *field)
+uint64_t bt_ctf_get_uint64(const struct definition *field)
 {
        unsigned int ret = 0;
 
@@ -323,7 +378,7 @@ uint64_t bt_ctf_get_uint64(struct definition *field)
        return ret;
 }
 
-int64_t bt_ctf_get_int64(struct definition *field)
+int64_t bt_ctf_get_int64(const struct definition *field)
 {
        int ret = 0;
 
@@ -336,7 +391,7 @@ int64_t bt_ctf_get_int64(struct definition *field)
 
 }
 
-char *bt_ctf_get_char_array(struct definition *field)
+char *bt_ctf_get_char_array(const struct definition *field)
 {
        char *ret = NULL;
 
@@ -348,7 +403,7 @@ char *bt_ctf_get_char_array(struct definition *field)
        return ret;
 }
 
-char *bt_ctf_get_string(struct definition *field)
+char *bt_ctf_get_string(const struct definition *field)
 {
        char *ret = NULL;