/*
 * $Header: /cvsroot/pgpool/pgpool-II/pcp/pcp.h,v 1.1.1.1 2006/09/08 03:36:48 t-ishii Exp $
 *
 * pcp.h - master header file.
 */

#ifndef PCP_H
#define PCP_H

#include "pool_type.h"

#define MAX_USER_PASSWD_LEN    128

typedef enum {
	UNKNOWNERR = 1,		/* shouldn't happen */
	EOFERR,				/* EOF read by read() */
	NOMEMERR,			/* could not allocate memory */
	READERR,			/* read() error */
	WRITEERR,			/* flush() error */
	TIMEOUTERR,			/* select() timeout */
	INVALERR,			/* invalid command-line argument(s) number, length, range, etc. */
	CONNERR,			/* thrown by connect() */
	NOCONNERR,			/* not connected to server */
	SOCKERR,			/* thrown by socket() or setsockopt() */
	HOSTERR,			/* thrown by gethostbyname() */
	BACKENDERR,			/* server dependent error */
	AUTHERR				/* authorization faiure */
} ErrorCode;

/* --------------------------------
 * pcp.c
 * --------------------------------
 */
extern struct timeval pcp_timeout;
extern int pcp_connect(char *hostname, int port, char *username, char *password);
extern void pcp_disconnect(void);
extern int pcp_terminate_pgpool(char mode);
extern int pcp_node_count(void);
extern BackendInfo *pcp_node_info(int nid);
extern int *pcp_process_count(int *process_count);
extern ProcessInfo *pcp_process_info(int pid, int *array_size);
extern SystemDBInfo *pcp_systemdb_info(void);
extern void free_systemdb_info(SystemDBInfo * si);
extern int pcp_detach_node(int nid);
extern int pcp_attach_node(int nid);
extern void pcp_set_timeout(long sec);

/* ------------------------------
 * pcp_error.c
 * ------------------------------
 */
extern ErrorCode errorcode;
extern void pcp_errorstr(ErrorCode e);

#endif /* PCP_H */