diff options
| author | Salvatore Cro <salvatore.cro@st.com> | 2010-09-09 16:01:04 +0200 |
|---|---|---|
| committer | Carmelo Amoroso <carmelo.amoroso@st.com> | 2010-09-15 12:38:42 +0200 |
| commit | 4b88e6e858b55def2ef0392278ddf81835f2ac45 (patch) | |
| tree | e97e06b8eb18ef18f86e598ccec879405bdcee53 /libc/unistd | |
| parent | 37eb913ed8c4798b736e678f4dbd9f4a91a68f74 (diff) | |
libc: Fix cancellation handling in some C functions
According to POSIX.1-2008 standard, the following syscalls shall be
cancellation points : waitid, sleep, fdatasync, ppoll.
Further, if generic syscall is not available and stubs are
configured, provide the stub implementation for function.
Signed-off-by: Salvatore Cro <salvatore.cro@st.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
Diffstat (limited to 'libc/unistd')
| -rw-r--r-- | libc/unistd/sleep.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/libc/unistd/sleep.c b/libc/unistd/sleep.c index 0c0416e6d..b0031f022 100644 --- a/libc/unistd/sleep.c +++ b/libc/unistd/sleep.c @@ -54,7 +54,12 @@ unsigned int sleep (unsigned int seconds) /* This is not necessary but some buggy programs depend on this. */ if (seconds == 0) - return 0; + { +# ifdef CANCELLATION_P + CANCELLATION_P (THREAD_SELF); +# endif + return 0; + } /* Linux will wake up the system call, nanosleep, when SIGCHLD arrives even if SIGCHLD is ignored. We have to deal with it |