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os-posix: replace goto again with a proper loop 

Eliminiate two fullwrite implementations with goto replacing them with
a proper do..while loop.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
This commit is contained in:
Michael Tokarev 2014-10-30 17:37:16 +03:00
parent 0be5e436ff
commit ccea25f1c7
1 changed files with 6 additions and 10 deletions
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16
os-posix.c
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@ -218,11 +218,9 @@ void os_daemonize(void)
close(fds[1]);
again:
len = read(fds[0], &status, 1);
if (len == -1 && (errno == EINTR)) {
goto again;
}
do {
len = read(fds[0], &status, 1);
} while (len < 0 && errno == EINTR);
if (len != 1) {
exit(1);
}
@ -264,11 +262,9 @@ void os_setup_post(void)
uint8_t status = 0;
ssize_t len;
again1:
len = write(daemon_pipe, &status, 1);
if (len == -1 && (errno == EINTR)) {
goto again1;
}
do {
len = write(daemon_pipe, &status, 1);
} while (len < 0 && errno == EINTR);
if (len != 1) {
exit(1);
}