+++ /dev/null
-/*
- * Copyright (C) 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
- *
- * SPDX-License-Identifier: LGPL-2.1-only
- *
- */
-
-#include <common/compat/time.h>
-#include <common/time.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 <common/compat/errno.h>
-#include <common/macros.h>
-
-#include "utils.h"
-
-static inline
-int64_t elapsed_time_ns(struct timespec *t1, struct timespec *t2)
-{
- struct timespec delta;
-
- LTTNG_ASSERT(t1 && t2);
- delta.tv_sec = t2->tv_sec - t1->tv_sec;
- delta.tv_nsec = t2->tv_nsec - t1->tv_nsec;
- return ((int64_t) NSEC_PER_SEC * (int64_t) delta.tv_sec) +
- (int64_t) delta.tv_nsec;
-}
-
-int usleep_safe(useconds_t usec)
-{
- int ret = 0;
- struct timespec t1, t2;
- int64_t time_remaining_ns = (int64_t) usec * (int64_t) NSEC_PER_USEC;
-
- ret = lttng_clock_gettime(CLOCK_MONOTONIC, &t1);
- if (ret) {
- ret = -1;
- perror("clock_gettime");
- goto end;
- }
-
- while (time_remaining_ns > 0) {
- ret = usleep(time_remaining_ns / (int64_t) NSEC_PER_USEC);
- if (ret && errno != EINTR) {
- perror("usleep");
- goto end;
- }
-
- ret = lttng_clock_gettime(CLOCK_MONOTONIC, &t2);
- if (ret) {
- perror("clock_gettime");
- goto end;
- }
-
- time_remaining_ns -= elapsed_time_ns(&t1, &t2);
- }
-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;
-}