* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include <stdint.h>
+#include <assert.h>
#include <common/compat/time.h>
#include <common/time.h>
-#include <assert.h>
-#include <unistd.h>
-#include <stdio.h>
#include <errno.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "utils.h"
static inline
int64_t elapsed_time_ns(struct timespec *t1, struct timespec *t2)
goto end;
}
- ret = clock_gettime(CLOCK_MONOTONIC, &t2);
+ ret = lttng_clock_gettime(CLOCK_MONOTONIC, &t2);
if (ret) {
perror("clock_gettime");
goto end;
end:
return ret;
}
+
+int create_file(const char *path)
+{
+ int ret;
+
+ if (!path) {
+ return -1;
+ }
+
+ ret = creat(path, S_IRWXU);
+ if (ret < 0) {
+ perror("creat");
+ return -1;
+ }
+
+ ret = close(ret);
+ if (ret < 0) {
+ perror("close");
+ return -1;
+ }
+
+ return 0;
+}
+
+int wait_on_file(const char *path)
+{
+ int ret;
+ struct stat buf;
+
+ if (!path) {
+ return -1;
+ }
+
+ for (;;) {
+ ret = stat(path, &buf);
+ if (ret == -1 && errno == ENOENT) {
+ ret = poll(NULL, 0, 10); /* 10 ms delay */
+ /* Should return 0 everytime */
+ if (ret) {
+ if (ret < 0) {
+ perror("perror");
+ } else {
+ fprintf(stderr,
+ "poll return value is larger than zero\n");
+ }
+ return -1;
+ }
+ continue; /* retry */
+ }
+ if (ret) {
+ perror("stat");
+ return -1;
+ }
+ break; /* found */
+ }
+
+ return 0;
+}