Changeset: faba80cc5b66 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=faba80cc5b66
Modified Files:
configure.ag
gdk/gdk_posix.c
Branch: Apr2019
Log Message:
Use nanosleep() if available, and turn MS_sleep_ms(1) into sleeping 1 usec.
On Windows, the smallest sleep granularity is milliseconds, so no
change there, but on Linux, we translate a sleep of 1 ms into a sleep
of 1 microsecond (not nanosecond).
diffs (35 lines):
diff --git a/configure.ag b/configure.ag
--- a/configure.ag
+++ b/configure.ag
@@ -2623,6 +2623,7 @@ AC_CHECK_FUNCS([\
lockf \
madvise \
mremap \
+ nanosleep \
nl_langinfo \
_NSGetExecutablePath \
pipe2 \
diff --git a/gdk/gdk_posix.c b/gdk/gdk_posix.c
--- a/gdk/gdk_posix.c
+++ b/gdk/gdk_posix.c
@@ -1099,11 +1099,15 @@ win_mkdir(const char *pathname, const in
void
MT_sleep_ms(unsigned int ms)
{
- struct timeval tv;
-
- tv.tv_sec = ms / 1000;
- tv.tv_usec = 1000 * (ms % 1000);
- (void) select(0, NULL, NULL, NULL, &tv);
+#ifdef HAVE_NANOSLEEP
+ (void) nanosleep(&(struct timespec) {.tv_sec = ms / 1000,
+ .tv_nsec = ms == 1 ? 1000 : (long) (ms % 1000)
* 1000000,},
+ NULL);
+#else
+ (void) select(0, NULL, NULL, NULL,
+ &(struct timeval) {.tv_sec = ms / 1000,
+ .tv_usec = ms == 1 ? 1 : (ms % 1000) *
1000,});
+#endif
}
#else /* WIN32 */
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