Changeset 8456 for trunk/src/kernel32/mmap.cpp

Timestamp:

May 20, 2002, 3:47:59 PM (23 years ago)

Author:

sandervl

Message:

DF: Removed 64 MB memory mapped file limit & Fix for opening memory mapped file with size larger than the file size

File:

• trunk/src/kernel32/mmap.cpp (modified) (6 diffs)

trunk/src/kernel32/mmap.cpp

@@ -1 @@
-/* $Id: mmap.cpp,v 1.55 2002-04-07 15:44:11 sandervl Exp $ */
+/* $Id: mmap.cpp,v 1.56 2002-05-20 13:47:59 sandervl Exp $ */
 
 /*
@@ -105 +105 @@
 //******************************************************************************
 //******************************************************************************
-BOOL Win32MemMap::Init()
+BOOL Win32MemMap::Init(DWORD aMSize)
 {
     mapMutex.enter();
@@ -134 +134 @@
             goto fail;
         }
+        if (mSize < aMSize)
+        {
+            dprintf(("Win32MemMap::init: file size %d, memory map size %d", mSize, aMSize));
+            //Froloff: Need to check if exist the possibility of file to memory
+            //         mapping not from the beginning of file
+            mSize = SetFilePointer(hMemFile, aMSize, NULL, FILE_BEGIN);
+            // Commit filesize changes onto disk
+            SetEndOfFile(hMemFile);
+        }
+#if 0
         //SvL: Temporary limitation of size (Warp Server Advanced doesn't allow
         //     one to reserve more than 450 MB (unless you override the virtual
@@ -140 +150 @@
             mSize = 64*1024*1024;
         }
+#endif
     }
 
@@ -611 +622 @@
     //Named file mappings from other processes are always shared;
     //map into our address space
-    if(map->getMemName() != NULL && map->getProcessId() != mProcessId) 
+    if(map->getMemName() != NULL && map->getProcessId() != mProcessId)
     {
         //shared memory map, so map it into our address space
@@ -756 +767 @@
     }
     while(view);
-  
+
     //failure if we get here
     view = NULL;