/*-------------------------------------------------------------------------
 *
 * poolutils.h
 *
 *		Utilities for Postgres-XC Pooler
 *
 * Portions Copyright (c) 1996-2011, PostgreSQL Global Development Group
 * Portions Copyright (c) 2010-2012 Postgres-XC Development Group
 *
 * src/include/pgxc/poolutils.h
 *
 *-------------------------------------------------------------------------
 */

#ifndef POOLUTILS_H
#define POOLUTILS_H

#include "nodes/parsenodes.h"

#define TIMEOUT_CLEAN_LOOP 10 /* Wait 10s for all the transactions to shutdown */

/* Error codes for connection cleaning */
#define CLEAN_CONNECTION_COMPLETED			0
#define CLEAN_CONNECTION_NOT_COMPLETED		1
#define CLEAN_CONNECTION_TX_REMAIN			2
#define	CLEAN_CONNECTION_EOF				-1

/* Results for query cancel */
#define QUERY_CANCEL_COMPLETED				0

/* Results for pooler connection info check */
#define POOL_CHECK_SUCCESS					0
#define POOL_CHECK_FAILED					1

/* Results for pooler connection info refresh */
#define POOL_REFRESH_SUCCESS				0
#define POOL_REFRESH_FAILED					1

void CleanConnection(CleanConnStmt *stmt);
void DropDBCleanConnection(char *dbname);

/* Handle pooler connection reload/refresh when signaled by SIGUSR1 */
void HandlePoolerReload(void);
void HandlePoolerRefresh(void);
bool PgxcNodeRefresh(void);
#endif