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| author | Magnus Hagander <magnus@hagander.net> | 2009-05-04 08:36:40 +0000 |
|---|---|---|
| committer | Magnus Hagander <magnus@hagander.net> | 2009-05-04 08:36:40 +0000 |
| commit | ca6c0ac4d3da974c11866388989071f5ce821b5d (patch) | |
| tree | 2cab293c335ca64350343ee81171547e61214269 /src/backend/port/win32_shmem.c | |
| parent | ffbd17e73e633cd6da462b330651b16d47963953 (diff) | |
| download | postgresql-ca6c0ac4d3da974c11866388989071f5ce821b5d.tar.gz postgresql-ca6c0ac4d3da974c11866388989071f5ce821b5d.zip | |
Call SetLastError(0) before calling the file mapping functions
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.
Diffstat (limited to 'src/backend/port/win32_shmem.c')
| -rw-r--r-- | src/backend/port/win32_shmem.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/backend/port/win32_shmem.c b/src/backend/port/win32_shmem.c index b3849bea0b7..7cb477c6ed0 100644 --- a/src/backend/port/win32_shmem.c +++ b/src/backend/port/win32_shmem.c @@ -6,7 +6,7 @@ * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/port/win32_shmem.c,v 1.7 2009/01/01 17:23:46 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/port/win32_shmem.c,v 1.8 2009/05/04 08:36:40 mha Exp $ * *------------------------------------------------------------------------- */ @@ -131,6 +131,9 @@ PGSharedMemoryCreate(Size size, bool makePrivate, int port) UsedShmemSegAddr = NULL; + /* In case CreateFileMapping() doesn't set the error code to 0 on success */ + SetLastError(0); + hmap = CreateFileMapping((HANDLE) 0xFFFFFFFF, /* Use the pagefile */ NULL, /* Default security attrs */ PAGE_READWRITE, /* Memory is Read/Write */ @@ -160,6 +163,9 @@ PGSharedMemoryCreate(Size size, bool makePrivate, int port) Sleep(1000); + /* In case CreateFileMapping() doesn't set the error code to 0 on success */ + SetLastError(0); + hmap = CreateFileMapping((HANDLE) 0xFFFFFFFF, NULL, PAGE_READWRITE, 0L, (DWORD) size, szShareMem); if (!hmap) ereport(FATAL, |