/*
- * Copyright (C) - 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ * Copyright (C) 2015 Jérémie Galarneau <jeremie.galarneau@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
*/
-#include <stdint.h>
+#include <assert.h>
#include <common/compat/time.h>
#include <common/time.h>
-#include <assert.h>
-#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <stdbool.h>
+#include <stdint.h>
#include <stdio.h>
-#include <errno.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <common/compat/errno.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;
+}