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-rw-r--r--src/backend/port/win32_shmem.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/src/backend/port/win32_shmem.c b/src/backend/port/win32_shmem.c
index ed485ea80f8..5651a31e44c 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 1.9 2009/05/05 09:48:51 mha Exp $
+ * $PostgreSQL: pgsql/src/backend/port/win32_shmem.c,v 1.10 2009/05/05 21:51:46 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -158,12 +158,13 @@ PGSharedMemoryCreate(Size size, bool makePrivate, int port)
/*
* If the segment already existed, CreateFileMapping() will return a
- * handle to the existing one.
+ * handle to the existing one and set ERROR_ALREADY_EXISTS.
*/
if (GetLastError() == ERROR_ALREADY_EXISTS)
{
- CloseHandle(hmap); /* Close the old handle, since we got a valid
+ CloseHandle(hmap); /* Close the handle, since we got a valid
* one to the previous segment. */
+ hmap = NULL;
Sleep(1000);
continue;
}
@@ -171,10 +172,10 @@ PGSharedMemoryCreate(Size size, bool makePrivate, int port)
}
/*
- * If the last call in the loop still returned ERROR_ALREADY_EXISTS, this shared memory
- * segment exists and we assume it belongs to somebody else.
+ * If the last call in the loop still returned ERROR_ALREADY_EXISTS, this
+ * shared memory segment exists and we assume it belongs to somebody else.
*/
- if (GetLastError() == ERROR_ALREADY_EXISTS)
+ if (!hmap)
ereport(FATAL,
(errmsg("pre-existing shared memory block is still in use"),
errhint("Check if there are any old server processes still running, and terminate them.")));