1/* 2 * Copyright (c) 2022-2022 Huawei Device Co., Ltd. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without modification, 5 * are permitted provided that the following conditions are met: 6 * 7 * 1. Redistributions of source code must retain the above copyright notice, this list of 8 * conditions and the following disclaimer. 9 * 10 * 2. Redistributions in binary form must reproduce the above copyright notice, this list 11 * of conditions and the following disclaimer in the documentation and/or other materials 12 * provided with the distribution. 13 * 14 * 3. Neither the name of the copyright holder nor the names of its contributors may be used 15 * to endorse or promote products derived from this software without specific prior written 16 * permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 20 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 22 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 23 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 24 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 25 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 26 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 27 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 28 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#ifndef _PIPE_IMPL_H 32#define _PIPE_IMPL_H 33 34#include <stdio.h> 35#include <unistd.h> 36#include "los_config.h" 37#include "poll_impl.h" 38 39#ifdef __cplusplus 40#if __cplusplus 41extern "C" { 42#endif /* __cplusplus */ 43#endif /* __cplusplus */ 44 45#define PIPE_DEV_PATH "/dev/pipe" 46 47UINT32 OsPipeInit(VOID); 48INT32 PipeOpen(const CHAR *path, INT32 openFlag, INT32 minFd); 49INT32 PipeClose(INT32 fd); 50INT32 PipeRead(INT32 fd, VOID *buf, size_t len); 51INT32 PipeWrite(INT32 fd, const VOID *buf, size_t len); 52INT32 PipeUnlink(const CHAR *path); 53INT32 PipePoll(INT32 fd, struct PollTable *table); 54 55#ifdef __cplusplus 56#if __cplusplus 57} 58#endif /* __cplusplus */ 59#endif /* __cplusplus */ 60 61#endif /* _PIPE_IMPL_H */ 62