1// Copyright (c) 2009 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5// This provides a wrapper around system calls which may be interrupted by a 6// signal and return EINTR. See man 7 signal. 7// 8// On Windows, this wrapper macro does nothing. 9 10#ifndef BASE_EINTR_WRAPPER_H_ 11#define BASE_EINTR_WRAPPER_H_ 12#pragma once 13 14#include "build/build_config.h" 15 16#if defined(OS_POSIX) 17 18#include <errno.h> 19 20#define HANDLE_EINTR(x) ({ \ 21 typeof(x) __eintr_result__; \ 22 do { \ 23 __eintr_result__ = x; \ 24 } while (__eintr_result__ == -1 && errno == EINTR); \ 25 __eintr_result__;\ 26}) 27 28#else 29 30#define HANDLE_EINTR(x) x 31 32#endif // OS_POSIX 33 34#endif // BASE_EINTR_WRAPPER_H_ 35