diff options
| author | Denys Vlasenko <dvlasenk@redhat.com> | 2010-10-22 15:46:04 +0200 |
|---|---|---|
| committer | Denys Vlasenko <dvlasenk@redhat.com> | 2010-10-22 15:46:04 +0200 |
| commit | e9b9c97c33c52e9eafaf6bf6d682e43ecfa3aea7 (patch) | |
| tree | 3845753f005bba882e99a83e2e9150fa56a6c81a | |
| parent | 251a3c19cb4bba47fcd38c697b3d7679b3edb137 (diff) | |
sleep: tiny code shrink
...or rather, it WILL BE code shrink when gcc become clever enough
to not emit a second, useless XORing of ebx:
31 db xor %ebx,%ebx
85 c0 test %eax,%eax
74 11 je 73 <__GI_sleep+0x73>
31 db xor %ebx,%ebx <=== ?!
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
| -rw-r--r-- | libc/unistd/sleep.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/libc/unistd/sleep.c b/libc/unistd/sleep.c index 438f5e282..6a237e3f9 100644 --- a/libc/unistd/sleep.c +++ b/libc/unistd/sleep.c @@ -82,6 +82,10 @@ unsigned int sleep (unsigned int seconds) /* Run nanosleep, with SIGCHLD blocked if SIGCHLD is SIG_IGNed. */ result = nanosleep (&ts, &ts); + if (result != 0) { + /* Got EINTR. Return remaining time. */ + result = (unsigned int) ts.tv_sec + (ts.tv_nsec >= 500000000L); + } if (!__sigismember (&set, SIGCHLD)) { /* We did block SIGCHLD, and old mask had no SIGCHLD bit. @@ -91,10 +95,6 @@ unsigned int sleep (unsigned int seconds) sigprocmask (SIG_SETMASK, &set, NULL); /* never fails */ } - if (result != 0) - /* Round remaining time. */ - result = (unsigned int) ts.tv_sec + (ts.tv_nsec >= 500000000L); - return result; } #endif |