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2ce8cca7b5
While flock is not a posix interface, it exists on linux and all BSDs as far as I am aware.
26 lines
484 B
C++
26 lines
484 B
C++
/*
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* Copyright (c) 2021, Peter Elliott <pelliott@ualberta.ca>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Assertions.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <sys/file.h>
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extern "C" {
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int flock(int fd, int operation)
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{
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struct flock lock {
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short(operation & 0b11), SEEK_SET, 0, 0, 0
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};
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if (operation & LOCK_NB) {
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return fcntl(fd, F_SETLK, &lock);
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}
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// FIXME: Implement F_SETLKW in fcntl.
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VERIFY_NOT_REACHED();
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}
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}
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