X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=tests%2Futils%2Ftestapp%2Fgen-ust-events%2Fgen-ust-events.c;h=1ce34423b330ab14cccf50597b2fa1d0e469148c;hb=a9c2df2bfce7a27b53ee5d5101f259f3e1f506b1;hp=edf40eee42a1c3dcbf224adb2f08e0720a6040d4;hpb=7e0cc23bbca1f5102cae78a7cabe48d8ef947366;p=lttng-tools.git

diff --git a/tests/utils/testapp/gen-ust-events/gen-ust-events.c b/tests/utils/testapp/gen-ust-events/gen-ust-events.c
index edf40eee4..1ce34423b 100644
--- a/tests/utils/testapp/gen-ust-events/gen-ust-events.c
+++ b/tests/utils/testapp/gen-ust-events/gen-ust-events.c
@@ -15,7 +15,10 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
+#define _LGPL_SOURCE
+#include <assert.h>
 #include <arpa/inet.h>
+#include <fcntl.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -24,35 +27,95 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <unistd.h>
+#include <stdbool.h>
+#include <signal.h>
+#include <poll.h>
+#include <errno.h>
+#include "utils.h"
+#include "signal-helper.h"
 
 #define TRACEPOINT_DEFINE
 #include "tp.h"
 
 int main(int argc, char **argv)
 {
-	int i, netint;
+	unsigned int i, netint;
 	long values[] = { 1, 2, 3 };
 	char text[10] = "test";
 	double dbl = 2.0;
 	float flt = 2222.0;
-	unsigned int nr_iter = 100;
+	int nr_iter = 100, ret = 0, first_event_file_created = 0;
 	useconds_t nr_usec = 0;
+	char *after_first_event_file_path = NULL;
+	char *before_last_event_file_path = NULL;
+
+	if (set_signal_handler()) {
+		ret = -1;
+		goto end;
+	}
 
 	if (argc >= 2) {
+		/*
+		 * If nr_iter is negative, do an infinite tracing loop.
+		 */
 		nr_iter = atoi(argv[1]);
 	}
 
-	if (argc == 3) {
+	if (argc >= 3) {
 		/* By default, don't wait unless user specifies. */
 		nr_usec = atoi(argv[2]);
 	}
 
-	for (i = 0; i < nr_iter; i++) {
+	if (argc >= 4) {
+		after_first_event_file_path = argv[3];
+	}
+
+	if (argc >= 5) {
+		before_last_event_file_path = argv[4];
+	}
+
+	for (i = 0; nr_iter < 0 || i < nr_iter; i++) {
+		if (nr_iter >= 0 && i == nr_iter - 1) {
+			/*
+			 * Wait on synchronization before writing last
+			 * event.
+			 */
+			if (before_last_event_file_path) {
+				ret = wait_on_file(before_last_event_file_path);
+				if (ret != 0) {
+					goto end;
+				}
+			}
+		}
 		netint = htonl(i);
-		tracepoint(tp, tptest, i, netint, values, text, strlen(text),
-			   dbl, flt);
-		usleep(nr_usec);
+		tracepoint(tp, tptest, i, netint, values, text,
+			strlen(text), dbl, flt);
+
+		/*
+		 * First loop we create the file if asked to indicate
+		 * that at least one tracepoint has been hit.
+		 */
+		if (after_first_event_file_path && first_event_file_created == 0) {
+			ret = create_file(after_first_event_file_path);
+
+			if (ret != 0) {
+				goto end;
+			} else {
+				first_event_file_created = 1;
+			}
+		}
+
+		if (nr_usec) {
+		        if (usleep_safe(nr_usec)) {
+				ret = -1;
+				goto end;
+			}
+		}
+		if (should_quit) {
+			break;
+		}
 	}
 
-	return 0;
+end:
+	exit(!ret ? EXIT_SUCCESS : EXIT_FAILURE);
 }