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/*
* $Header$
*
* pgpool: a language independent connection pool server for PostgreSQL
* written by Tatsuo Ishii
*
* Copyright (c) 2003-2020 PgPool Global Development Group
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby
* granted, provided that the above copyright notice appear in all
* copies and that both that copyright notice and this permission
* notice appear in supporting documentation, and that the name of the
* author not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. The author makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* pcp_stream.h - pcp_stream header file.
*/
#ifndef PCP_STREAM_H
#define PCP_STREAM_H
#include "pool.h"
#define READBUFSZ 1024
#define WRITEBUFSZ 8192
typedef struct
{
int fd; /* fd for connection */
char *wbuf; /* write buffer for the connection */
int wbufsz; /* write buffer size */
int wbufpo; /* buffer offset */
char *hp; /* pending data buffer head address */
int po; /* pending data offset */
int bufsz; /* pending data buffer size */
int len; /* pending data length */
} PCP_CONNECTION;
extern PCP_CONNECTION *pcp_open(int fd);
extern void pcp_close(PCP_CONNECTION *pc);
extern int pcp_read(PCP_CONNECTION *pc, void *buf, int len);
extern int pcp_write(PCP_CONNECTION *pc, void *buf, int len);
extern int pcp_flush(PCP_CONNECTION *pc);
#define UNIX_DOMAIN_PATH "/tmp"
#endif /* PCP_STREAM_H */
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