/usr/include/postgres-xc/server/commands/async.h is in postgres-xc-server-dev 1.1-2ubuntu2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | /*-------------------------------------------------------------------------
*
* async.h
* Asynchronous notification: NOTIFY, LISTEN, UNLISTEN
*
* Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/commands/async.h
*
*-------------------------------------------------------------------------
*/
#ifndef ASYNC_H
#define ASYNC_H
#include "fmgr.h"
/*
* The number of SLRU page buffers we use for the notification queue.
*/
#define NUM_ASYNC_BUFFERS 8
extern bool Trace_notify;
extern Size AsyncShmemSize(void);
extern void AsyncShmemInit(void);
/* notify-related SQL statements */
extern void Async_Notify(const char *channel, const char *payload);
extern void Async_Listen(const char *channel);
extern void Async_Unlisten(const char *channel);
extern void Async_UnlistenAll(void);
/* notify-related SQL functions */
extern Datum pg_listening_channels(PG_FUNCTION_ARGS);
extern Datum pg_notify(PG_FUNCTION_ARGS);
/* perform (or cancel) outbound notify processing at transaction commit */
extern void PreCommit_Notify(void);
extern void AtCommit_Notify(void);
extern void AtAbort_Notify(void);
extern void AtSubStart_Notify(void);
extern void AtSubCommit_Notify(void);
extern void AtSubAbort_Notify(void);
extern void AtPrepare_Notify(void);
extern void ProcessCompletedNotifies(void);
/* signal handler for inbound notifies (PROCSIG_NOTIFY_INTERRUPT) */
extern void HandleNotifyInterrupt(void);
/*
* enable/disable processing of inbound notifies directly from signal handler.
* The enable routine first performs processing of any inbound notifies that
* have occurred since the last disable.
*/
extern void EnableNotifyInterrupt(void);
extern bool DisableNotifyInterrupt(void);
#endif /* ASYNC_H */
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