diff options
Diffstat (limited to 'src/include/storage/sinvaladt.h')
| -rw-r--r-- | src/include/storage/sinvaladt.h | 66 |
1 files changed, 33 insertions, 33 deletions
diff --git a/src/include/storage/sinvaladt.h b/src/include/storage/sinvaladt.h index 12efeb2c8b..1862cda616 100644 --- a/src/include/storage/sinvaladt.h +++ b/src/include/storage/sinvaladt.h @@ -6,7 +6,7 @@ * * Copyright (c) 1994, Regents of the University of California * - * $Id: sinvaladt.h,v 1.4 1997/09/07 05:01:37 momjian Exp $ + * $Id: sinvaladt.h,v 1.5 1997/09/08 02:39:13 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -53,37 +53,37 @@ C----------------End shared segment ------- typedef struct ProcState { - int limit; /* the number of read messages */ - bool resetState; /* true, if backend has to reset its state */ - int tag; /* special tag, recieved from the + int limit; /* the number of read messages */ + bool resetState; /* true, if backend has to reset its state */ + int tag; /* special tag, recieved from the * postmaster */ -} ProcState; +} ProcState; typedef struct SISeg { - IpcSemaphoreId criticalSectionSemaphoreId; /* semaphore id */ - IpcSemaphoreId generalSemaphoreId; /* semaphore id */ - Offset startEntrySection; /* (offset a) */ - Offset endEntrySection; /* (offset a + b) */ - Offset startFreeSpace; /* (offset relative to B) */ - Offset startEntryChain; /* (offset relative to B) */ - Offset endEntryChain; /* (offset relative to B) */ - int numEntries; - int maxNumEntries; - ProcState procState[MaxBackendId]; /* reflects the + IpcSemaphoreId criticalSectionSemaphoreId; /* semaphore id */ + IpcSemaphoreId generalSemaphoreId; /* semaphore id */ + Offset startEntrySection; /* (offset a) */ + Offset endEntrySection;/* (offset a + b) */ + Offset startFreeSpace; /* (offset relative to B) */ + Offset startEntryChain;/* (offset relative to B) */ + Offset endEntryChain; /* (offset relative to B) */ + int numEntries; + int maxNumEntries; + ProcState procState[MaxBackendId]; /* reflects the * invalidation state */ /* here starts the entry section, controlled by offsets */ -} SISeg; +} SISeg; #define SizeSISeg sizeof(SISeg) typedef struct SharedInvalidData { - int cacheId; /* XXX */ - Index hashIndex; + int cacheId; /* XXX */ + Index hashIndex; ItemPointerData pointerData; -} SharedInvalidData; +} SharedInvalidData; typedef SharedInvalidData *SharedInvalid; @@ -91,18 +91,18 @@ typedef SharedInvalidData *SharedInvalid; typedef struct SISegEntry { SharedInvalidData entryData;/* the message data */ - bool isfree; /* entry free? */ - Offset next; /* offset to next entry */ -} SISegEntry; + bool isfree; /* entry free? */ + Offset next; /* offset to next entry */ +} SISegEntry; #define SizeOfOneSISegEntry sizeof(SISegEntry) typedef struct SISegOffsets { - Offset startSegment; /* always 0 (for now) */ - Offset offsetToFirstEntry; /* A + a = B */ - Offset offsetToEndOfSegemnt; /* A + a + b */ -} SISegOffsets; + Offset startSegment; /* always 0 (for now) */ + Offset offsetToFirstEntry; /* A + a = B */ + Offset offsetToEndOfSegemnt; /* A + a + b */ +} SISegOffsets; /****************************************************************************/ @@ -114,20 +114,20 @@ typedef struct SISegOffsets #define SI_SharedLock (-1) #define SI_ExclusiveLock (-255) -extern SISeg *shmInvalBuffer; +extern SISeg *shmInvalBuffer; /* * prototypes for functions in sinvaladt.c */ -extern int SIBackendInit(SISeg * segInOutP); -extern int SISegmentInit(bool killExistingSegment, IPCKey key); +extern int SIBackendInit(SISeg * segInOutP); +extern int SISegmentInit(bool killExistingSegment, IPCKey key); -extern bool SISetDataEntry(SISeg * segP, SharedInvalidData * data); -extern void SISetProcStateInvalid(SISeg * segP); -extern bool SIDelDataEntry(SISeg * segP); +extern bool SISetDataEntry(SISeg * segP, SharedInvalidData * data); +extern void SISetProcStateInvalid(SISeg * segP); +extern bool SIDelDataEntry(SISeg * segP); extern void SIReadEntryData(SISeg * segP, int backendId, void (*invalFunction) (), void (*resetFunction) ()); -extern void SIDelExpiredDataEntries(SISeg * segP); +extern void SIDelExpiredDataEntries(SISeg * segP); #endif /* SINVALADT_H */ |