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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2011 New Dream Network
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software
* Foundation. See file COPYING.
*
*/
#include "common/pipe.h"
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
int pipe_cloexec(int pipefd[2])
{
#if defined(O_CLOEXEC) && !defined(__FreeBSD__)
int ret;
ret = pipe2(pipefd, O_CLOEXEC);
if (ret) {
ret = -errno;
return ret;
}
return 0;
#else
/* The old-fashioned, race-condition prone way that we have to fall back on if
* O_CLOEXEC does not exist. */
int ret = pipe(pipefd);
if (ret) {
ret = -errno;
return ret;
}
fcntl(pipefd[0], F_SETFD, FD_CLOEXEC);
fcntl(pipefd[1], F_SETFD, FD_CLOEXEC);
return 0;
#endif
}
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