77 lines
2.9 KiB
C
77 lines
2.9 KiB
C
/*
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* Copyright (c) 2022-2022 Huawei Device Co., Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _VFS_MOUNT_H_
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#define _VFS_MOUNT_H_
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#include "sys/statfs.h"
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#include "los_compiler.h"
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#ifdef __cplusplus
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#if __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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struct FsMap;
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struct MountPoint;
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struct MountOps {
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int (*mount)(struct MountPoint *mp, unsigned long mountflags,
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const void *data);
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int (*umount)(struct MountPoint *mp);
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int (*umount2)(struct MountPoint *mp, int flag);
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int (*statfs)(const char *path, struct statfs *buf);
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};
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struct MountPoint {
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struct FsMap *mFs; /* file system info */
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struct MountPoint *mNext; /* point to next mount point */
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const char *mPath; /* target path, /system, /usr, etc. */
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const char *mDev; /* device, "emmc0p0", "emmc0p1", etc. */
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UINT32 mRefs; /* reference to mount point */
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void *mData; /* specific file system handle */
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BOOL mWriteEnable; /* writable flag */
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};
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extern struct MountPoint *g_mountPoints;
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#define LOS_MP_FOR_EACH_ENTRY(prev) \
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for (prev = g_mountPoints; prev != NULL; prev = prev->mNext)
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struct MountPoint *VfsMpFind(const char *path, const char **pathInMp);
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#ifdef __cplusplus
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#if __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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#endif /* _VFS_MOUNT_H_ */
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