Changeset 8273 for trunk/src/kernel32/oslibdos.cpp

Timestamp:

Apr 16, 2002, 2:21:04 AM (23 years ago)

Author:

bird

Message:

Buffer cdrom drive letters in OSLibGetDriveType.

File:

• trunk/src/kernel32/oslibdos.cpp (modified) (4 diffs)

trunk/src/kernel32/oslibdos.cpp

@@ -1 @@
-/* $Id: oslibdos.cpp,v 1.99 2002-04-13 07:47:24 bird Exp $ */
+/* $Id: oslibdos.cpp,v 1.100 2002-04-16 00:21:04 bird Exp $ */
 /*
  * Wrappers for OS/2 Dos* API
@@ -2723 +2723 @@
     /*
      * Optimize floppy queries for A: and B:.
-     * (I don't hope these are any subject of change.)
+     * (These aren't currently a subject of change.)
      */
     static ULONG ulFloppyMask = 0;
@@ -2729 +2729 @@
         return DRIVE_REMOVABLE_W;
 
+    /*
+     * Optimize for CDROM requests.
+     * (These aren't currently a subject of change.)
+     */
+    static ULONG ulCDROMMask = 0;
+    if (ulCDROMMask & (1 << ulDrive))
+        return DRIVE_CDROM_W;
 
     /*
@@ -2877 +2884 @@
     }
     else if (bpb.fsDeviceAttr & CDType)
+    {
         ulDriveType = DRIVE_CDROM_W;
+        /* update cdrom cache */
+        ulCDROMMask |= 1 << ulDrive;
+    }
     else if (bpb.fsDeviceAttr & LanType)
         ulDriveType = DRIVE_REMOTE_W;