postgresql/src/include/postmaster/bgwriter.h
Tom Lane 785941cdc3 Tweak __attribute__-wrapping macros for better pgindent results.
This improves on commit bbfd7edae5 by
making two simple changes:

* pg_attribute_noreturn now takes parentheses, ie pg_attribute_noreturn().
Likewise pg_attribute_unused(), pg_attribute_packed().  This reduces
pgindent's tendency to misformat declarations involving them.

* attributes are now always attached to function declarations, not
definitions.  Previously some places were taking creative shortcuts,
which were not merely candidates for bad misformatting by pgindent
but often were outright wrong anyway.  (It does little good to put a
noreturn annotation where callers can't see it.)  In any case, if
we would like to believe that these macros can be used with non-gcc
compilers, we should avoid gratuitous variance in usage patterns.

I also went through and manually improved the formatting of a lot of
declarations, and got rid of excessively repetitive (and now obsolete
anyway) comments informing the reader what pg_attribute_printf is for.
2015-03-26 14:03:25 -04:00

43 lines
1.3 KiB
C

/*-------------------------------------------------------------------------
*
* bgwriter.h
* Exports from postmaster/bgwriter.c and postmaster/checkpointer.c.
*
* The bgwriter process used to handle checkpointing duties too. Now
* there is a separate process, but we did not bother to split this header.
*
* Portions Copyright (c) 1996-2015, PostgreSQL Global Development Group
*
* src/include/postmaster/bgwriter.h
*
*-------------------------------------------------------------------------
*/
#ifndef _BGWRITER_H
#define _BGWRITER_H
#include "storage/block.h"
#include "storage/relfilenode.h"
/* GUC options */
extern int BgWriterDelay;
extern int CheckPointTimeout;
extern int CheckPointWarning;
extern double CheckPointCompletionTarget;
extern void BackgroundWriterMain(void) pg_attribute_noreturn();
extern void CheckpointerMain(void) pg_attribute_noreturn();
extern void RequestCheckpoint(int flags);
extern void CheckpointWriteDelay(int flags, double progress);
extern bool ForwardFsyncRequest(RelFileNode rnode, ForkNumber forknum,
BlockNumber segno);
extern void AbsorbFsyncRequests(void);
extern Size CheckpointerShmemSize(void);
extern void CheckpointerShmemInit(void);
extern bool FirstCallSinceLastCheckpoint(void);
#endif /* _BGWRITER_H */