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Call SetLastError(0) before calling the file mapping functions

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to make sure that the error code is reset, as a precaution in
case the API doesn't properly reset it on success. This could
be necessary, since we check the error value even if the function
doesn't fail for specific success cases.
This commit is contained in:
Magnus Hagander 2009-05-04 08:36:42 +00:00
parent 4c3c2ee8aa
commit f79ea3da64
1 changed files with 3 additions and 1 deletions
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4
src/backend/port/win32/shmem.c
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@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/port/win32/shmem.c,v 1.13 2006/07/14 05:28:28 tgl Exp $
* $PostgreSQL: pgsql/src/backend/port/win32/shmem.c,v 1.13.2.1 2009/05/04 08:36:42 mha Exp $
*
*-------------------------------------------------------------------------
*/
@ -90,6 +90,7 @@ shmget(int memKey, int size, int flag)
if (flag & IPC_CREAT)
{
SetLastError(0);
hmap = CreateFileMapping((HANDLE) 0xFFFFFFFF, /* Use the swap file */
NULL,
PAGE_READWRITE, /* Memory is Read/Write */
@ -99,6 +100,7 @@ shmget(int memKey, int size, int flag)
}
else
{
SetLastError(0);
hmap = OpenFileMapping(FILE_MAP_ALL_ACCESS,
FALSE,
szShareMem);