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/*-------------------------------------------------------------------------
*
* receivelog.h
*
* Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
*
* IDENTIFICATION
* src/bin/pg_basebackup/receivelog.h
*-------------------------------------------------------------------------
*/
#ifndef RECEIVELOG_H
#define RECEIVELOG_H
#include "access/xlogdefs.h"
#include "libpq-fe.h"
#include "walmethods.h"
/*
* Called before trying to read more data or when a segment is
* finished. Return true to stop streaming.
*/
typedef bool (*stream_stop_callback) (XLogRecPtr segendpos, uint32 timeline, bool segment_finished);
/*
* Global parameters when receiving xlog stream. For details about the individual fields,
* see the function comment for ReceiveXlogStream().
*/
typedef struct StreamCtl
{
XLogRecPtr startpos; /* Start position for streaming */
TimeLineID timeline; /* Timeline to stream data from */
char *sysidentifier; /* Validate this system identifier and
* timeline */
int standby_message_timeout; /* Send status messages this often */
bool synchronous; /* Flush immediately WAL data on write */
bool mark_done; /* Mark segment as done in generated archive */
bool do_sync; /* Flush to disk to ensure consistent state of
* data */
stream_stop_callback stream_stop; /* Stop streaming when returns true */
pgsocket stop_socket; /* if valid, watch for input on this socket
* and check stream_stop() when there is any */
WalWriteMethod *walmethod; /* How to write the WAL */
char *partial_suffix; /* Suffix appended to partially received files */
char *replication_slot; /* Replication slot to use, or NULL */
} StreamCtl;
extern bool CheckServerVersionForStreaming(PGconn *conn);
extern bool ReceiveXlogStream(PGconn *conn,
StreamCtl *stream);
#endif /* RECEIVELOG_H */
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