Tests: `gen-ust-nevents`: add syncpoints

[lttng-tools.git] / tests / utils / testapp / gen-ust-nevents / gen-ust-nevents.c

diff --git a/tests/utils/testapp/gen-ust-nevents/gen-ust-nevents.c b/tests/utils/testapp/gen-ust-nevents/gen-ust-nevents.c
index 9d9f171b4616425b99116088306dedb9d16d7990..ec71023de4d872632d59aef98d1f14037bc854bc 100644 (file)
--- a/tests/utils/testapp/gen-ust-nevents/gen-ust-nevents.c
+++ b/tests/utils/testapp/gen-ust-nevents/gen-ust-nevents.c
@@ -1,22 +1,13 @@
 /*
- * Copyright (C) - 2012 David Goulet <dgoulet@efficios.com>
+ * Copyright (C) 2012 David Goulet <dgoulet@efficios.com>
  *
- * This library is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License as published by the
- * Free Software Foundation; version 2.1 of the License.
+ * SPDX-License-Identifier: LGPL-2.1-only
  *
- * This library is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
- * for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this library; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
 #define _LGPL_SOURCE
 #include <arpa/inet.h>
+#include <getopt.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -26,27 +17,77 @@
 #include <sys/types.h>
 #include <unistd.h>
 #include "utils.h"
+#include "signal-helper.h"
 
 #define TRACEPOINT_DEFINE
 #include "tp.h"
 
+static struct option long_options[] =
+{
+       /* These options set a flag. */
+       {"iter", required_argument, 0, 'i'},
+       {"wait", required_argument, 0, 'w'},
+       {"create-in-main", required_argument, 0, 'm'},
+       {"wait-before-first-event", required_argument, 0, 'b'},
+       {0, 0, 0, 0}
+};
+
 int main(int argc, char **argv)
 {
-       int i, netint, ret = 0;
+       int i, netint, ret = 0, option_index, option;
        long values[] = { 1, 2, 3 };
        char text[10] = "test";
        double dbl = 2.0;
        float flt = 2222.0;
        unsigned int nr_iter = 100;
        useconds_t nr_usec = 0;
+       char *wait_before_first_event_file_path = NULL;
+       char *create_in_main_file_path = NULL;
 
-       if (argc >= 2) {
-               nr_iter = atoi(argv[1]);
+       while ((option = getopt_long(argc, argv, "i:w:b:m:",
+                       long_options, &option_index)) != -1) {
+               switch (option) {
+               case 'b':
+                       wait_before_first_event_file_path = strdup(optarg);
+                       break;
+               case 'm':
+                       create_in_main_file_path = strdup(optarg);
+                       break;
+               case 'i':
+                       nr_iter = atoi(optarg);
+                       break;
+               case 'w':
+                       nr_usec = atoi(optarg);
+                       break;
+               case '?':
+                       /* getopt_long already printed an error message. */
+               default:
+                       ret = -1;
+                       goto end;
+               }
        }
 
-       if (argc == 3) {
-               /* By default, don't wait unless user specifies. */
-               nr_usec = atoi(argv[2]);
+       if (set_signal_handler()) {
+               ret = -1;
+               goto end;
+       }
+
+       /*
+        * The two following sync points allow for tests to do work after the
+        * app has started BUT before it generates any events.
+        */
+       if (create_in_main_file_path) {
+               ret = create_file(create_in_main_file_path);
+               if (ret != 0) {
+                       goto end;
+               }
+       }
+
+       if (wait_before_first_event_file_path) {
+               ret = wait_on_file(wait_before_first_event_file_path);
+               if (ret != 0) {
+                       goto end;
+               }
        }
 
        for (i = 0; i < nr_iter; i++) {
@@ -67,8 +108,13 @@ int main(int argc, char **argv)
                                goto end;
                        }
                }
+               if (should_quit) {
+                       break;
+               }
        }
 
 end:
-        exit(!ret ? EXIT_SUCCESS : EXIT_FAILURE);
+       free(create_in_main_file_path);
+       free(wait_before_first_event_file_path);
+       exit(!ret ? EXIT_SUCCESS : EXIT_FAILURE);
 }