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Improve API of GenericXLogRegister().

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Rename this function to GenericXLogRegisterBuffer() to make it clearer
what it does, and leave room for other sorts of "register" actions in
future.  Also, replace its "bool isNew" argument with an integer flags
argument, so as to allow adding more flags in future without an API
break.

Alexander Korotkov, adjusted slightly by me
This commit is contained in:
Tom Lane
2016-04-12 11:42:06 -04:00
parent bdf7db8192
commit 5713f03973
6 changed files with 41 additions and 31 deletions
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7
src/include/access/generic_xlog.h
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@@ -22,14 +22,17 @@
#define MAX_GENERIC_XLOG_PAGES XLR_NORMAL_MAX_BLOCK_ID
/* Flag bits for GenericXLogRegisterBuffer */
#define GENERIC_XLOG_FULL_IMAGE 0x0001 /* write full-page image */
/* state of generic xlog record construction */
struct GenericXLogState;
typedef struct GenericXLogState GenericXLogState;
/* API for construction of generic xlog records */
extern GenericXLogState *GenericXLogStart(Relation relation);
extern Page GenericXLogRegister(GenericXLogState *state, Buffer buffer,
bool isNew);
extern Page GenericXLogRegisterBuffer(GenericXLogState *state, Buffer buffer,
int flags);
extern XLogRecPtr GenericXLogFinish(GenericXLogState *state);
extern void GenericXLogAbort(GenericXLogState *state);