/*-------------------------------------------------------------------------
 *
 * walsender.h
 *	  Exports from replication/walsender.c.
 *
 * Portions Copyright (c) 2010-2012, PostgreSQL Global Development Group
 *
 * src/include/replication/walsender.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef _WALSENDER_H
#define _WALSENDER_H

#include <signal.h>

#include "fmgr.h"

/* global state */
extern bool am_walsender;
extern bool am_cascading_walsender;
extern volatile sig_atomic_t walsender_shutdown_requested;
extern volatile sig_atomic_t walsender_ready_to_stop;

/* user-settable parameters */
extern int	max_wal_senders;
extern int	replication_timeout;

extern int	WalSenderMain(void);
extern void WalSndSignals(void);
extern Size WalSndShmemSize(void);
extern void WalSndShmemInit(void);
extern void WalSndWakeup(void);
extern void WalSndRqstFileReload(void);

extern Datum pg_stat_get_wal_senders(PG_FUNCTION_ARGS);

#endif   /* _WALSENDER_H */