X-Git-Url: http://git.efficios.com/?p=babeltrace.git;a=blobdiff_plain;f=include%2Fbabeltrace%2Fcontext.h;h=f29ccf083f034c5e73a36132b42103668a3dfa19;hp=4a85ff9966162aefa6c61b757ff510a62a659dec;hb=148656722777eff147bd9f2e00f44111377f4b39;hpb=c50d2a7af8f63f3f4d2c0a6fce9a6e214d2baeda

diff --git a/include/babeltrace/context.h b/include/babeltrace/context.h
index 4a85ff99..f29ccf08 100644
--- a/include/babeltrace/context.h
+++ b/include/babeltrace/context.h
@@ -21,11 +21,23 @@
  *
  * 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 <unistd.h>
 #include <babeltrace/format.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* struct bt_context is opaque to the user */
 struct bt_context;
 struct stream_pos;
@@ -60,7 +72,7 @@ struct bt_context *bt_context_create(void);
  *
  * stream_list is a linked list of streams, it is used to open a trace where
  * the trace data is located in memory mapped areas instead of trace files,
- * this argument should be set to NULL when path is not NULL.
+ * this argument should be non-NULL when path is NULL.
  *
  * The metadata parameter acts as a metadata override when not NULL, otherwise
  * the format handles the metadata opening.
@@ -78,9 +90,10 @@ int bt_context_add_trace(struct bt_context *ctx, const char *path,
 /*
  * bt_context_remove_trace: Remove a trace from the context.
  *
- * Effectively closing the trace.
+ * Effectively closing the trace. Return negative error value if trace
+ * is not in context.
  */
-void bt_context_remove_trace(struct bt_context *ctx, int trace_id);
+int bt_context_remove_trace(struct bt_context *ctx, int trace_id);
 
 /*
  * bt_context_get and bt_context_put : increments and decrement the
@@ -104,4 +117,8 @@ void bt_context_put(struct bt_context *ctx);
  */
 struct bt_context *bt_ctf_event_get_context(const struct bt_ctf_event *event);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _BABELTRACE_CONTEXT_H */