Files
postgresql/src/include/replication/logical.h
Tom Lane 382ceffdf7 Phase 3 of pgindent updates.
Don't move parenthesized lines to the left, even if that means they
flow past the right margin.

By default, BSD indent lines up statement continuation lines that are
within parentheses so that they start just to the right of the preceding
left parenthesis.  However, traditionally, if that resulted in the
continuation line extending to the right of the desired right margin,
then indent would push it left just far enough to not overrun the margin,
if it could do so without making the continuation line start to the left of
the current statement indent.  That makes for a weird mix of indentations
unless one has been completely rigid about never violating the 80-column
limit.

This behavior has been pretty universally panned by Postgres developers.
Hence, disable it with indent's new -lpl switch, so that parenthesized
lines are always lined up with the preceding left paren.

This patch is much less interesting than the first round of indent
changes, but also bulkier, so I thought it best to separate the effects.

Discussion: https://postgr.es/m/E1dAmxK-0006EE-1r@gemulon.postgresql.org
Discussion: https://postgr.es/m/30527.1495162840@sss.pgh.pa.us
2017-06-21 15:35:54 -04:00

116 lines
3.2 KiB
C

/*-------------------------------------------------------------------------
* logical.h
* PostgreSQL logical decoding coordination
*
* Copyright (c) 2012-2017, PostgreSQL Global Development Group
*
*-------------------------------------------------------------------------
*/
#ifndef LOGICAL_H
#define LOGICAL_H
#include "replication/slot.h"
#include "access/xlog.h"
#include "access/xlogreader.h"
#include "replication/output_plugin.h"
struct LogicalDecodingContext;
typedef void (*LogicalOutputPluginWriterWrite) (
struct LogicalDecodingContext *lr,
XLogRecPtr Ptr,
TransactionId xid,
bool last_write
);
typedef LogicalOutputPluginWriterWrite LogicalOutputPluginWriterPrepareWrite;
typedef void (*LogicalOutputPluginWriterUpdateProgress) (
struct LogicalDecodingContext *lr,
XLogRecPtr Ptr,
TransactionId xid
);
typedef struct LogicalDecodingContext
{
/* memory context this is all allocated in */
MemoryContext context;
/* The associated replication slot */
ReplicationSlot *slot;
/* infrastructure pieces for decoding */
XLogReaderState *reader;
struct ReorderBuffer *reorder;
struct SnapBuild *snapshot_builder;
OutputPluginCallbacks callbacks;
OutputPluginOptions options;
/*
* User specified options
*/
List *output_plugin_options;
/*
* User-Provided callback for writing/streaming out data.
*/
LogicalOutputPluginWriterPrepareWrite prepare_write;
LogicalOutputPluginWriterWrite write;
LogicalOutputPluginWriterUpdateProgress update_progress;
/*
* Output buffer.
*/
StringInfo out;
/*
* Private data pointer of the output plugin.
*/
void *output_plugin_private;
/*
* Private data pointer for the data writer.
*/
void *output_writer_private;
/*
* State for writing output.
*/
bool accept_writes;
bool prepared_write;
XLogRecPtr write_location;
TransactionId write_xid;
} LogicalDecodingContext;
extern void CheckLogicalDecodingRequirements(void);
extern LogicalDecodingContext *CreateInitDecodingContext(char *plugin,
List *output_plugin_options,
bool need_full_snapshot,
XLogPageReadCB read_page,
LogicalOutputPluginWriterPrepareWrite prepare_write,
LogicalOutputPluginWriterWrite do_write,
LogicalOutputPluginWriterUpdateProgress update_progress);
extern LogicalDecodingContext *CreateDecodingContext(
XLogRecPtr start_lsn,
List *output_plugin_options,
XLogPageReadCB read_page,
LogicalOutputPluginWriterPrepareWrite prepare_write,
LogicalOutputPluginWriterWrite do_write,
LogicalOutputPluginWriterUpdateProgress update_progress);
extern void DecodingContextFindStartpoint(LogicalDecodingContext *ctx);
extern bool DecodingContextReady(LogicalDecodingContext *ctx);
extern void FreeDecodingContext(LogicalDecodingContext *ctx);
extern void LogicalIncreaseXminForSlot(XLogRecPtr lsn, TransactionId xmin);
extern void LogicalIncreaseRestartDecodingForSlot(XLogRecPtr current_lsn,
XLogRecPtr restart_lsn);
extern void LogicalConfirmReceivedLocation(XLogRecPtr lsn);
extern bool filter_by_origin_cb_wrapper(LogicalDecodingContext *ctx, RepOriginId origin_id);
#endif