Changeset 2833 in vbox

Timestamp:

May 24, 2007 9:58:44 AM (18 years ago)

Author:

vboxsync

Message:

New open flag for just getting the image information, suppressing
base/diff image consistency check.

Location:

trunk

Files:

• include/VBox/VBoxHDD-new.h (modified) (1 diff)
• src/VBox/Devices/Storage/VBoxHDD-new.cpp (modified) (2 diffs)

trunk/include/VBox/VBoxHDD-new.h

@@ -153 +153 @@
  * formats. It is silently ignored otherwise. */
 #define VD_OPEN_FLAGS_HONOR_SAME    RT_BIT(2)
+/** Do not perform the base/diff image check on open. This internally implies
+ * opening the image as readonly. Images opened with this flag should only be
+ * used for querying information, and nothing else. */
+#define VD_OPEN_FLAGS_INFO          RT_BIT(3)
 /** Mask of valid flags. */
-#define VD_OPEN_FLAGS_MASK          (VD_OPEN_FLAGS_NORMAL | VD_OPEN_FLAGS_READONLY | VD_OPEN_FLAGS_HONOR_ZEROES | VD_OPEN_FLAGS_HONOR_SAME)
+#define VD_OPEN_FLAGS_MASK          (VD_OPEN_FLAGS_NORMAL | VD_OPEN_FLAGS_READONLY | VD_OPEN_FLAGS_HONOR_ZEROES | VD_OPEN_FLAGS_HONOR_SAME | VD_OPEN_FLAGS_INFO)
 /** @}*/
 

trunk/src/VBox/Devices/Storage/VBoxHDD-new.cpp

@@ -578 +578 @@
     }
 
+    /* Force readonly for images without base/diff consistency checking. */
+    if (uOpenFlags & VD_OPEN_FLAGS_INFO)
+        uOpenFlags |= VD_OPEN_FLAGS_READONLY;
+
     /* Set up image descriptor. */
     PVDIMAGE pImage = (PVDIMAGE)RTMemAllocZ(sizeof(VDIMAGE));
@@ -622 +626 @@
          * or normal, all others must be normal images. */
         if (    VBOX_SUCCESS(rc)
+            &&  !(uOpenFlags & VD_OPEN_FLAGS_INFO)
             &&  pDisk->cImages != 0
             &&  enmImageType != VD_IMAGE_TYPE_NORMAL)