X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=include%2Fbabeltrace%2Ftrace-handle.h;h=55c850f8d0e374840b6d8a1c66137ff130dda47a;hb=f3985ab106d89d8e764c1a8dd0c8bda09b755d10;hp=426800d84e4cf1d01056b6310233bf1eefd2ad92;hpb=bb919dd077169b5ee049ba3fc82f8555648cb22e;p=babeltrace.git

diff --git a/include/babeltrace/trace-handle.h b/include/babeltrace/trace-handle.h
index 426800d8..55c850f8 100644
--- a/include/babeltrace/trace-handle.h
+++ b/include/babeltrace/trace-handle.h
@@ -20,6 +20,14 @@
  *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
  */
 
 #include <stdint.h>
@@ -45,20 +53,25 @@ struct bt_ctf_event;
 const char *bt_trace_handle_get_path(struct bt_context *ctx, int handle_id);
 
 /*
- * bt_trace_handle_get_timestamp_begin : returns the creation time (in
- * nanoseconds or cycles depending on type) of the buffers of a trace
- * or -1ULL on error.
+ * bt_trace_handle_get_timestamp_begin : get the creation time (in
+ * nanoseconds or cycles depending on type) of the buffers of a trace.
+ *
+ * Returns 0 on success, -1 on error.
  */
-uint64_t bt_trace_handle_get_timestamp_begin(struct bt_context *ctx,
-		int handle_id, enum bt_clock_type type);
+int bt_trace_handle_get_timestamp_begin(struct bt_context *ctx,
+		int handle_id, enum bt_clock_type type,
+		int64_t *timestamp);
 
 /*
- * bt_trace_handle_get_timestamp_end : returns the destruction timestamp
- * (in anoseconds or cycles depending on type) of the buffers of a trace
- * or -1ULL on error.
+ * bt_trace_handle_get_timestamp_end : get the destruction time
+ * (in nanoseconds or cycles depending on type) of the buffers of a
+ * trace.
+ *
+ * Returns 0 on success, -1 on error.
  */
-uint64_t bt_trace_handle_get_timestamp_end(struct bt_context *ctx,
-		int handle_id, enum bt_clock_type type);
+int bt_trace_handle_get_timestamp_end(struct bt_context *ctx,
+		int handle_id, enum bt_clock_type type,
+		int64_t *timestamp);
 
 /*
  * bt_ctf_event_get_handle_id : get the handle id associated with an event