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authorSebastian Huber <sebastian.huber@embedded-brains.de>2022-08-01 09:03:11 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2022-08-04 07:55:30 +0200
commitc64c638f6dee6c0e92804bbe378ff91cc75f620e (patch)
tree176ef9ed40dc357a917a8c63af264ecf23706706 /cpukit/posix/src/clocknanosleep.c
parentlibmisc/shell: Add an 'rtems' command to report a running build (diff)
downloadrtems-c64c638f6dee6c0e92804bbe378ff91cc75f620e.tar.bz2
posix: Fix relative CLOCK_REALTIME sleep
A relative CLOCK_REALTIME time out shall not be affected by CLOCK_REALTIME changes through clock_settime(). Since our CLOCK_REALTIME is basically just CLOCK_MONOTONIC plus an offset, we can simply use the CLOCK_MONOTONIC watchdog for relative CLOCK_REALTIME time outs. Update #4690.
Diffstat (limited to '')
-rw-r--r--cpukit/posix/src/clocknanosleep.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/cpukit/posix/src/clocknanosleep.c b/cpukit/posix/src/clocknanosleep.c
index 3fa890fecd..bfa8ef7975 100644
--- a/cpukit/posix/src/clocknanosleep.c
+++ b/cpukit/posix/src/clocknanosleep.c
@@ -82,6 +82,15 @@ int clock_nanosleep(
rmtp = NULL;
} else {
absolute = false;
+
+ /*
+ * A relative CLOCK_REALTIME time out shall not be affected by
+ * CLOCK_REALTIME changes through clock_settime(). Since our
+ * CLOCK_REALTIME is basically just CLOCK_MONOTONIC plus an offset, we can
+ * simply use the CLOCK_MONOTONIC watchdog for relative CLOCK_REALTIME time
+ * outs.
+ */
+ clock_id = CLOCK_MONOTONIC;
}
if ( clock_id == CLOCK_REALTIME ) {