| /*------------------------------------------------------------------------- |
| * |
| * sinvaladt.h |
| * POSTGRES shared cache invalidation data manager. |
| * |
| * The shared cache invalidation manager is responsible for transmitting |
| * invalidation messages between backends. Any message sent by any backend |
| * must be delivered to all already-running backends before it can be |
| * forgotten. (If we run out of space, we instead deliver a "RESET" |
| * message to backends that have fallen too far behind.) |
| * |
| * The struct type SharedInvalidationMessage, defining the contents of |
| * a single message, is defined in sinval.h. |
| * |
| * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group |
| * Portions Copyright (c) 1994, Regents of the University of California |
| * |
| * src/include/storage/sinvaladt.h |
| * |
| *------------------------------------------------------------------------- |
| */ |
| #ifndef SINVALADT_H |
| #define SINVALADT_H |
| |
| #include "storage/sinval.h" |
| |
| /* |
| * prototypes for functions in sinvaladt.c |
| */ |
| extern Size SInvalShmemSize(void); |
| extern void CreateSharedInvalidationState(void); |
| extern void SharedInvalBackendInit(bool sendOnly); |
| |
| extern void SIInsertDataEntries(SharedInvalidationMessage *data, int n); |
| extern int SIGetDataEntries(SharedInvalidationMessage *data, int datasize); |
| extern void SICleanupQueue(bool callerHasWriteLock, int minFree); |
| |
| #endif /* SINVALADT_H */ |