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runscript: retry prefix flock if it is interrupted by a signal

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Reported-by: Pacho Ramos <pacho2@gentoo.org>
X-Gentoo-Bug: 434800
X-Gentoo-Bug-URL: https://bugs.gentoo.org/show_bug.cgi?id=434800
This commit is contained in:
Alexander Mezin 2013-02-02 15:15:19 -06:00 committed by William Hubbs
parent f30eec03ce
commit 970893adf3
1 changed files with 6 additions and 2 deletions
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8
src/rc/runscript.c
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@ -311,8 +311,12 @@ write_prefix(const char *buffer, size_t bytes, bool *prefixed)
lock_fd = open(PREFIX_LOCK, O_WRONLY | O_CREAT, 0664);
if (lock_fd != -1) {
if (flock(lock_fd, LOCK_EX) != 0)
eerror("flock() failed: %s", strerror(errno));
while (flock(lock_fd, LOCK_EX) != 0) {
if (errno != EINTR) {
eerror("flock() failed: %s", strerror(errno));
break;
}
}
}
#ifdef RC_DEBUG
else