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Clean up backend-exit-time cleanup behavior. Use on_shmem_exit callbacks

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to ensure that we have released buffer refcounts and so forth, rather than
putting ad-hoc operations before (some of the calls to) proc_exit.  Add
commentary to discourage future hackers from repeating that mistake.
This commit is contained in:
Tom Lane
2000-12-18 00:44:50 +00:00
parent 8c8ed4f456
commit a626b78c89
14 changed files with 255 additions and 139 deletions
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3
src/include/storage/bufmgr.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: bufmgr.h,v 1.46 2000/11/30 08:46:26 vadim Exp $
* $Id: bufmgr.h,v 1.47 2000/12/18 00:44:49 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -168,6 +168,7 @@ extern Buffer ReleaseAndReadBuffer(Buffer buffer, Relation relation,
extern int FlushBuffer(Buffer buffer, bool sync, bool release);
extern void InitBufferPool(void);
extern void InitBufferPoolAccess(void);
extern void PrintBufferUsage(FILE *statfp);
extern void ResetBufferUsage(void);
extern void ResetBufferPool(bool isCommit);