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lib: log error details if F_SETLK fails
Somehow F_SETLK was failing for me a couple of days ago, and not being able to see the errno value was frustrating. Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
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@ -57,7 +57,8 @@ pid_t pid_output(const char *path)
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lock.l_whence = SEEK_SET;
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if (fcntl(fd, F_SETLK, &lock) < 0) {
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zlog_err("Could not lock pid_file %s, exiting", path);
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zlog_err("Could not lock pid_file %s (%s), exiting",
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path, safe_strerror(errno));
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exit(1);
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}
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