greenplumn streamutil 源码
greenplumn streamutil 代码
文件路径：/src/bin/pg_basebackup/streamutil.h
/*-------------------------------------------------------------------------
*
* streamutil.h
*
* Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
*
* IDENTIFICATION
* src/bin/pg_basebackup/streamutil.h
*-------------------------------------------------------------------------
*/
#ifndef STREAMUTIL_H
#define STREAMUTIL_H
#include "libpq-fe.h"
#include "access/xlogdefs.h"
#include "datatype/timestamp.h"
extern const char *progname;
extern char *connection_string;
extern char *dbhost;
extern char *dbuser;
extern char *dbport;
extern char *dbname;
extern int dbgetpassword;
extern uint32 WalSegSz;
/* Connection kept global so we can disconnect easily */
extern PGconn *conn;
extern PGconn *GetConnection(void);
/* Replication commands */
extern bool CreateReplicationSlot(PGconn *conn, const char *slot_name,
const char *plugin, bool is_temporary,
bool is_physical, bool reserve_wal,
bool slot_exists_ok);
extern bool DropReplicationSlot(PGconn *conn, const char *slot_name);
extern bool RunIdentifySystem(PGconn *conn, char **sysid,
TimeLineID *starttli,
XLogRecPtr *startpos,
char **db_name);
extern bool RetrieveWalSegSize(PGconn *conn);
extern TimestampTz feGetCurrentTimestamp(void);
extern void feTimestampDifference(TimestampTz start_time, TimestampTz stop_time,
long *secs, int *microsecs);
extern bool feTimestampDifferenceExceeds(TimestampTz start_time, TimestampTz stop_time,
int msec);
extern void fe_sendint64(int64 i, char *buf);
extern int64 fe_recvint64(char *buf);
#endif /* STREAMUTIL_H */
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