Gen-ust-events: add touch and wait sync points before exit.
authorJonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Thu, 14 Feb 2019 02:22:06 +0000 (21:22 -0500)
committerJonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Mon, 18 Feb 2019 19:25:02 +0000 (14:25 -0500)
Allows an app to linger until the wait file is created and signals that
the app is just before the exit.

This is mostly useful for per-pid tracing where trace buffers are
cleaned on application teardown.

Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
tests/utils/testapp/gen-ust-events/gen-ust-events.c

index e2f6126782c6684daf01e02de45cce92f6c83445..018191d810fec519ac7a8e1375f030f4e88eea4f 100644 (file)
@@ -46,6 +46,8 @@ static struct option long_options[] =
        {"sync-after-first-event", required_argument, 0, 'a'},
        {"sync-before-last-event", required_argument, 0, 'b'},
        {"sync-before-last-event-touch", required_argument, 0, 'c'},
+       {"sync-before-exit", required_argument, 0, 'd'},
+       {"sync-before-exit-touch", required_argument, 0, 'e'},
        {0, 0, 0, 0}
 };
 
@@ -67,6 +69,10 @@ int main(int argc, char **argv)
         * generated.
         */
        char *before_last_event_file_path_touch = NULL;
+       /* Touch file when we are exiting */
+       char *before_exit_file_path_touch = NULL;
+       /* Wait on file before exiting */
+       char *before_exit_file_path = NULL;
 
        while((option_char = getopt_long(argc, argv, "i:w:a:b:c:d:", long_options, &option_index)) != -1) {
                switch (option_char) {
@@ -79,6 +85,12 @@ int main(int argc, char **argv)
                case 'c':
                        before_last_event_file_path_touch = strdup(optarg);
                        break;
+               case 'd':
+                       before_exit_file_path = strdup(optarg);
+                       break;
+               case 'e':
+                       before_exit_file_path_touch = strdup(optarg);
+                       break;
                case 'i':
                        nr_iter = atoi(optarg);
                        break;
@@ -154,9 +166,23 @@ int main(int argc, char **argv)
                }
        }
 
+       if (before_exit_file_path_touch) {
+               ret = create_file(before_exit_file_path_touch);
+               if (ret != 0) {
+                       goto end;
+               }
+       }
+       if (before_exit_file_path) {
+               ret = wait_on_file(before_exit_file_path);
+               if (ret != 0) {
+                       goto end;
+               }
+       }
 end:
        free(after_first_event_file_path);
        free(before_last_event_file_path);
        free(before_last_event_file_path_touch);
+       free(before_exit_file_path);
+       free(before_exit_file_path_touch);
        exit(!ret ? EXIT_SUCCESS : EXIT_FAILURE);
 }
This page took 0.037462 seconds and 5 git commands to generate.