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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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lfsDirLogInt.h
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C/C++ Source or Header
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1990-10-19
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2KB
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51 lines
/*
* lfsDirLogInt.h --
*
* Declarations of data structure internal to the implemenation of
* a directory change log for 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/lfsDirLogInt.h,v 1.1 90/10/19 16:01:46 mendel Exp $ SPRITE (Berkeley)
*/
#ifndef _LFSDIRLOGINT
#define _LFSDIRLOGINT
#include <lfsDirOpLog.h>
/* data structures */
typedef struct LfsDirLog {
int nextLogSeqNum; /* The next log sequence number to be
* allocated. */
LfsDirOpLogBlockHdr *curBlockHdrPtr; /* The log block header of the block
* current being filled in. */
char *nextBytePtr; /* The next available byte in the
* block being filled in. */
int bytesLeftInBlock;/* Number of bytes left in the
* block being filled in. */
List_Links activeListHdr; /* List cache blocks of log blocks. */
List_Links writingListHdr; /* List cache blocks of log blocks
* being written. */
Fsio_FileIOHandle handle; /* File handle used to cache blocks
* under. */
int leastCachedSeqNum; /* The least log sequence number in
* the in memory log. */
Boolean paused; /* Log traffic is currently paused. */
Sync_Condition logPausedWait; /* Wait for paused to become false. */
} LfsDirLog;
extern LfsDirOpLogEntry *LfsDirLogEntryAlloc _ARGS_((struct Lfs *lfsPtr,
int entrySize, int logSeqNum, Boolean *foundPtr));
#endif /* _LFSDIRLOGINT */