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Fix: use LIBS instead of AM_LDFLAGS for dl and c linking
[lttng-tools.git]
/
tests
/
utils
/
testapp
/
gen-ust-events
/
gen-ust-events.c
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 3be0f0f1130958769e8d9298a1945fd441af6742..11327d5f4b6866d7c324b50223181897ccf8e862 100644
(file)
--- a/
tests/utils/testapp/gen-ust-events/gen-ust-events.c
+++ b/
tests/utils/testapp/gen-ust-events/gen-ust-events.c
@@
-15,6
+15,7
@@
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#define _GNU_SOURCE
#define _LGPL_SOURCE
#include <assert.h>
#include <arpa/inet.h>
#define _LGPL_SOURCE
#include <assert.h>
#include <arpa/inet.h>
@@
-28,15
+29,21
@@
#include <sys/types.h>
#include <unistd.h>
#include <stdbool.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdbool.h>
+#include <signal.h>
+#include <poll.h>
+#include <errno.h>
#define TRACEPOINT_DEFINE
#include "tp.h"
void create_file(const char *path)
{
#define TRACEPOINT_DEFINE
#include "tp.h"
void create_file(const char *path)
{
+ static bool file_created = false;
int ret;
int ret;
- assert(path);
+ if (!path || file_created) {
+ return;
+ }
ret = creat(path, S_IRWXU);
if (ret < 0) {
ret = creat(path, S_IRWXU);
if (ret < 0) {
@@
-45,6
+52,30
@@
void create_file(const char *path)
}
(void) close(ret);
}
(void) close(ret);
+ file_created = true;
+}
+
+static
+void wait_on_file(const char *path)
+{
+ if (!path) {
+ return;
+ }
+ for (;;) {
+ int ret;
+ struct stat buf;
+
+ ret = stat(path, &buf);
+ if (ret == -1 && errno == ENOENT) {
+ (void) poll(NULL, 0, 10); /* 10 ms delay */
+ continue; /* retry */
+ }
+ if (ret) {
+ perror("stat");
+ exit(EXIT_FAILURE);
+ }
+ break; /* found */
+ }
}
int main(int argc, char **argv)
}
int main(int argc, char **argv)
@@
-56,8
+87,8
@@
int main(int argc, char **argv)
float flt = 2222.0;
int nr_iter = 100;
useconds_t nr_usec = 0;
float flt = 2222.0;
int nr_iter = 100;
useconds_t nr_usec = 0;
- char *
tmp
_file_path = NULL;
-
bool file_created = false
;
+ char *
after_first_event
_file_path = NULL;
+
char *before_last_event_file_path = NULL
;
if (argc >= 2) {
/*
if (argc >= 2) {
/*
@@
-72,22
+103,30
@@
int main(int argc, char **argv)
}
if (argc >= 4) {
}
if (argc >= 4) {
- tmp_file_path = argv[3];
+ 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++) {
}
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.
+ */
+ wait_on_file(before_last_event_file_path);
+ }
netint = htonl(i);
netint = htonl(i);
- tracepoint(tp, tptest, i, netint, values, text,
strlen(text), dbl,
-
flt);
+ 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.
+ * First loop we create the file if asked to indicate
+ * t
hat at least one t
racepoint has been hit.
*/
*/
- if (!file_created && tmp_file_path) {
- create_file(tmp_file_path);
- file_created = true;
- }
+ create_file(after_first_event_file_path);
usleep(nr_usec);
}
usleep(nr_usec);
}
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