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authorAdhemerval Zanella <adhemerval.zanella@linaro.com>2015-11-08 20:06:42 -0200
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2015-11-20 11:16:07 -0200
commit8c873bf0190740ac1102e13ff7aeb6c08048abfd (patch)
treea6dd51d1f25c3222a42dbab327be0d44d52888db /sysdeps/posix
parent31cf39421bae23ffc7b6c6a229e14f8faa41608f (diff)
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Remove signal handling for nanosleep (bug 16364)
Linux 2.6.32 and forward do not show the issue regarding SysV SIGCHLD vs. SIG_IGN for nanosleep which make it feasible to use it for sleep implementation without requiring any hacking to handle the spurious wake up. The issue is likely being fixed before 2.6 and git history [1] [2]. This patch simplifies the sleep code to call nanosleep directly by using the posix default version. It also removes the early cancellation tests for zero argument, since nanosleep will handle cancellation in this case. [1] https://lkml.org/lkml/2004/11/25/5 [2] https://lkml.org/lkml/2003/11/8/50 Checked on x86_64, ppc64le, and aarch64. [BZ #16364] * sysdeps/unix/sysv/linux/sleep.c: Remove file * sysdeps/posix/sleep.c (__sleep): Simplify cancellation handling.
Diffstat (limited to 'sysdeps/posix')
-rw-r--r--sysdeps/posix/sleep.c9
1 files changed, 0 insertions, 9 deletions
diff --git a/sysdeps/posix/sleep.c b/sysdeps/posix/sleep.c
index 75d9c18cd3..80beb2aee9 100644
--- a/sysdeps/posix/sleep.c
+++ b/sysdeps/posix/sleep.c
@@ -32,15 +32,6 @@
unsigned int
__sleep (unsigned int seconds)
{
- /* This is not necessary but some buggy programs depend on it. */
- if (__glibc_unlikely (seconds == 0))
- {
-#ifdef CANCELLATION_P
- CANCELLATION_P (THREAD_SELF);
-#endif
- return 0;
- }
-
int save_errno = errno;
const unsigned int max