更新日期: 2022/06/01 来源: https://gitee.com/weharmony/kernel_liteos_a_note
los_vm_shm_pri.h
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1/*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 * of conditions and the following disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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30 */
31
32#ifndef __LOS_SHM_PRI_H__
33#define __LOS_SHM_PRI_H__
34
35#include "los_typedef.h"
36#include "los_vm_map.h"
37
38#ifdef __cplusplus
39#if __cplusplus
40extern "C" {
41#endif /* __cplusplus */
42#endif /* __cplusplus */
43
44VOID OsShmFork(LosVmSpace *space, LosVmMapRegion *oldRegion, LosVmMapRegion *newRegion);
45VOID OsShmRegionFree(LosVmSpace *space, LosVmMapRegion *region);
47
48#ifdef __cplusplus
49#if __cplusplus
50}
51#endif /* __cplusplus */
52#endif /* __cplusplus */
53
54#endif /* __LOS_SHM_PRI_H__ */
size_t BOOL
Definition: los_typedef.h:88
VOID OsShmFork(LosVmSpace *space, LosVmMapRegion *oldRegion, LosVmMapRegion *newRegion)
fork 一个共享线性区
Definition: shm.c:393
BOOL OsIsShmRegion(LosVmMapRegion *region)
是否为共享线性区,是否有标签?
Definition: shm.c:435
VOID OsShmRegionFree(LosVmSpace *space, LosVmMapRegion *region)
释放共享线性区
Definition: shm.c:412
虚拟空间,每个进程都有一个属于自己的虚拟内存地址空间
Definition: los_vm_map.h:146