runscript: retry prefix flock if it is interrupted by a signal
Reported-by: Pacho Ramos <pacho2@gentoo.org> X-Gentoo-Bug: 434800 X-Gentoo-Bug-URL: https://bugs.gentoo.org/show_bug.cgi?id=434800
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@ -311,8 +311,12 @@ write_prefix(const char *buffer, size_t bytes, bool *prefixed)
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lock_fd = open(PREFIX_LOCK, O_WRONLY | O_CREAT, 0664);
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if (lock_fd != -1) {
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if (flock(lock_fd, LOCK_EX) != 0)
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eerror("flock() failed: %s", strerror(errno));
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while (flock(lock_fd, LOCK_EX) != 0) {
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if (errno != EINTR) {
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eerror("flock() failed: %s", strerror(errno));
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break;
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}
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}
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}
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#ifdef RC_DEBUG
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else
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