diff options
Diffstat (limited to 'src/os_unix.c')
| -rw-r--r-- | src/os_unix.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/os_unix.c b/src/os_unix.c index aed4ac213..59f67d142 100644 --- a/src/os_unix.c +++ b/src/os_unix.c @@ -6715,12 +6715,17 @@ static int unixRandomness(sqlite3_vfs *NotUsed, int nBuf, char *zBuf){ ** than the argument. */ static int unixSleep(sqlite3_vfs *NotUsed, int microseconds){ -#if OS_VXWORKS || _POSIX_C_SOURCE >= 199309L +#if !defined(HAVE_NANOSLEEP) || HAVE_NANOSLEEP+0 struct timespec sp; - sp.tv_sec = microseconds / 1000000; sp.tv_nsec = (microseconds % 1000000) * 1000; + + /* Almost all modern unix systems support nanosleep(). But if you are + ** compiling for one of the rare exceptions, you can use + ** -DHAVE_NANOSLEEP=0 (perhaps in conjuction with -DHAVE_USLEEP if + ** usleep() is available) in order to bypass the use of nanosleep() */ nanosleep(&sp, NULL); + UNUSED_PARAMETER(NotUsed); return microseconds; #elif defined(HAVE_USLEEP) && HAVE_USLEEP |