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Sprite 1984 - 1993
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Sprite 1984 - 1993.iso
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src
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machserver
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1.098
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lfs
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lfsDescInt.h
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C/C++ Source or Header
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1991-08-08
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/*
* lfsDescInt.h --
*
* Declarations of data structures for file descriptors internal to
* a LFS file system.
*
* Copyright 1990 Regents of the University of California
* Permission to use, copy, modify, and distribute this
* software and its documentation for any purpose and without
* fee is hereby granted, provided that the above copyright
* notice appear in all copies. The University of California
* makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without
* express or implied warranty.
*
* $Header: /sprite/src/kernel/lfs/RCS/lfsDescInt.h,v 1.2 91/08/08 17:51:53 mendel Exp $ SPRITE (Berkeley)
*/
#ifndef _LFSDESCINT
#define _LFSDESCINT
#include <fsioFile.h>
/* constants */
/* data structures */
/*
* LfsDescCache - Data structure defining the cache of file descriptor blocks
* maintained by a LFS file system. The current implementation
* caches descriptor map blocks in files the file cache.
*/
typedef struct LfsDescCache {
Fsio_FileIOHandle handle; /* File handle use to cache descriptor
* block under. */
} LfsDescCache;
/* procedures */
extern void LfsDescCacheInit _ARGS_((struct Lfs *lfsPtr));
extern void LfsDescCacheDestory _ARGS_((struct Lfs *lfsPtr));
extern ClientData LfsDescCacheBlockInit _ARGS_((struct Lfs *lfsPtr,
LfsDiskAddr diskBlockAddr,
Boolean cantBlock, char **blockStartPtr));
extern void LfsDescCacheBlockRelease _ARGS_((struct Lfs *lfsPtr,
ClientData clientData, Boolean deleteBlock));
#endif /* _LFSDESCINT */