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Code review for palloc0 patch --- avoid dangerous and unnecessary

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practice of evaluating MemSet's arguments multiple times, except for
the special case of newNode(), where we can assume the argument is
a constant sizeof() operator.
Also, add GetMemoryChunkContext() to mcxt.c's API, in preparation for
fixing recent GEQO breakage.
This commit is contained in:
Tom Lane
2002-12-16 16:22:46 +00:00
parent e64c7feb2f
commit 88177f77b1
6 changed files with 160 additions and 52 deletions
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3
src/include/utils/memutils.h
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@ -10,7 +10,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: memutils.h,v 1.49 2002/12/15 21:01:34 tgl Exp $
* $Id: memutils.h,v 1.50 2002/12/16 16:22:46 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -83,6 +83,7 @@ extern void MemoryContextResetChildren(MemoryContext context);
extern void MemoryContextDeleteChildren(MemoryContext context);
extern void MemoryContextResetAndDeleteChildren(MemoryContext context);
extern Size GetMemoryChunkSpace(void *pointer);
extern MemoryContext GetMemoryChunkContext(void *pointer);
extern void MemoryContextStats(MemoryContext context);
#ifdef MEMORY_CONTEXT_CHECKING