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/*-------------------------------------------------------------------------
*
* libpq.h
* POSTGRES LIBPQ buffer structure definitions.
*
*
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: libpq.h,v 1.39 2000/07/08 03:04:30 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef LIBPQ_H
#define LIBPQ_H
#include <sys/types.h>
#include <netinet/in.h>
#include "lib/stringinfo.h"
#include "libpq/libpq-be.h"
/* ----------------
* PQArgBlock
* Information (pointer to array of this structure) required
* for the PQfn() call. (This probably ought to go somewhere else...)
* ----------------
*/
typedef struct
{
int len;
int isint;
union
{
int *ptr; /* can't use void (dec compiler barfs) */
int integer;
} u;
} PQArgBlock;
/*
* PQerrormsg[] is used only for error messages generated within backend
* libpq, none of which are remarkably long. Note that this length should
* NOT be taken as any indication of the maximum error message length that
* the backend can create! elog() can in fact produce extremely long messages.
*/
#define PQERRORMSG_LENGTH 1024
extern char PQerrormsg[PQERRORMSG_LENGTH]; /* in libpq/util.c */
/*
* External functions.
*/
/*
* prototypes for functions in pqcomm.c
*/
extern int StreamServerPort(int family, unsigned short portName, int *fdP);
extern int StreamConnection(int server_fd, Port *port);
extern void StreamClose(int sock);
extern void pq_init(void);
extern void pq_close(void);
extern int pq_getbytes(char *s, size_t len);
extern int pq_getstring(StringInfo s);
extern int pq_peekbyte(void);
extern int pq_putbytes(const char *s, size_t len);
extern int pq_flush(void);
extern int pq_putmessage(char msgtype, const char *s, size_t len);
extern void pq_startcopyout(void);
extern void pq_endcopyout(bool errorAbort);
/*
* prototypes for functions in util.c
*/
extern void pqdebug(char *fmt, char *msg);
extern void PQtrace(void);
extern void PQuntrace(void);
#endif /* LIBPQ_H */
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