src/libpq/include/libpq/libpq.h

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/*-------------------------------------------------------------------------
 *
 * libpq.h
 *        POSTGRES LIBPQ buffer structure definitions.
 *
 *
 * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * $PostgreSQL: pgsql/src/include/libpq/libpq.h,v 1.65 2005/10/15 02:49:44 momjian Exp $
 *
 *-------------------------------------------------------------------------
 */
#ifndef LIBPQ_H
#define LIBPQ_H

#include <sys/types.h>
#include <netinet/in.h>

#include "lib/stringinfo.h"
#include "libpq/libpq-be.h"
#include "libpq/ip.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;

/*
 * External functions.
 */

/*
 * prototypes for functions in pqcomm.c
 */
extern int StreamServerPort(int family, char *hostName,
                 unsigned short portNumber, char *unixSocketName, int ListenSocket[],
                                 int MaxListen);
extern int      StreamConnection(int server_fd, Port *port);
extern void StreamClose(int sock);
extern void TouchSocketFile(void);
extern void pq_init(void);
extern void pq_comm_reset(void);
extern int      pq_getbytes(char *s, size_t len);
extern int      pq_getstring(StringInfo s);
extern int      pq_getmessage(StringInfo s, int maxlen);
extern int      pq_getbyte(void);
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 be-secure.c
 */
extern int      secure_initialize(void);
extern void secure_destroy(void);
extern int      secure_open_server(Port *port);
extern void secure_close(Port *port);
extern ssize_t secure_read(Port *port, void *ptr, size_t len);
extern ssize_t secure_write(Port *port, void *ptr, size_t len);

#endif   /* LIBPQ_H */