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/*
* Copyright (C) 2013 Nokia Corporation and/or its subsidiary(-ies).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef UniStdExtras_h
#define UniStdExtras_h
#include <errno.h>
#include <unistd.h>
namespace WTF {
WTF_EXPORT_PRIVATE bool setCloseOnExec(int fileDescriptor);
WTF_EXPORT_PRIVATE bool unsetCloseOnExec(int fileDescriptor);
WTF_EXPORT_PRIVATE int dupCloseOnExec(int fileDescriptor);
inline int closeWithRetry(int fileDescriptor)
{
int ret;
#if OS(LINUX)
// Workaround for the Linux behavior of closing the descriptor
// unconditionally, even if the close() call is interrupted.
// See https://bugs.webkit.org/show_bug.cgi?id=117266 for more
// details.
if ((ret = close(fileDescriptor)) == -1 && errno == EINTR)
return 0;
#else
while ((ret = close(fileDescriptor)) == -1 && errno == EINTR) { }
#endif
return ret;
}
WTF_EXPORT_PRIVATE bool setNonBlock(int fileDescriptor);
} // namespace WTF
using WTF::closeWithRetry;
using WTF::dupCloseOnExec;
using WTF::setCloseOnExec;
using WTF::unsetCloseOnExec;
using WTF::setNonBlock;
#endif // UniStdExtras_h
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