Changeset 50523 in vbox for trunk/src/VBox/Additions/common/VBoxGuest/VBoxGuestInternal.h

Timestamp:

Feb 20, 2014 12:00:58 PM (11 years ago)

Author:

vboxsync

Message:

Addiitions/common/VBoxGuest, VBoxGuestLibR3: add mediation in the guest driver for guest capabilities, mouse status and event filtering.

File:

• trunk/src/VBox/Additions/common/VBoxGuest/VBoxGuestInternal.h (modified) (4 diffs)

trunk/src/VBox/Additions/common/VBoxGuest/VBoxGuestInternal.h

@@ -158 +158 @@
     /** Spinlock various items in the VBOXGUESTSESSION. */
     RTSPINLOCK                  SessionSpinlock;
+    /** List of guest sessions (VBOXGUESTSESSION).  We currently traverse this
+     * but do not search it, so a list data type should be fine.  Use under the
+     * #SessionSpinlock lock. */
+    RTLISTANCHOR                SessionList;
 #ifdef VBOX_WITH_VRDP_SESSION_HANDLING
     bool                        fVRDPEnabled;
@@ -166 +170 @@
     /** Memory balloon information for RTR0MemObjAllocPhysNC(). */
     VBOXGUESTMEMBALLOON         MemBalloon;
-    /** For each mouse status feature the number of sessions which have
-     * enabled it.  A feature is enabled globally if at least one session has
-     * requested it. */
-    /** @todo can we programmatically determine the size of the array and
-     * still get the following alignment right? */
-    uint32_t volatile           acMouseFeatureUsage[32];
-    /** The mouse feature status matching the counts above.  These are updated
-     * together inside the session spinlock. */
-    uint32_t volatile           fMouseStatus;
     /** Counter of number of active ISRs.  Currently used for safely removing
      * the mouse handler callback. */
@@ -204 +199 @@
 typedef struct VBOXGUESTSESSION
 {
+    /** The list node. */
+    RTLISTNODE                  ListNode;
 #if defined(RT_OS_DARWIN) || defined(RT_OS_FREEBSD) || defined(RT_OS_OS2) || defined(RT_OS_SOLARIS)
     /** Pointer to the next session with the same hash. */
@@ -230 +227 @@
      * Used to implement polling.  */
     uint32_t volatile           u32MousePosChangedSeq;
+    /** VMMDev events requested.  An event type requested in any guest session
+     * will be added to the host filter.
+     * Use under the VBOXGUESTDEVEXT#SessionSpinlock lock. */
+    uint32_t                    fFilterMask;
+    /** Capabilities supported.  A capability enabled in any guest session will
+     * be enabled for the host.
+     * Use under the VBOXGUESTDEVEXT#SessionSpinlock lock. */
+    uint32_t                    fCapabilities;
     /** Mouse features supported.  A feature enabled in any guest session will
-     * be enabled for the host. */
-    uint32_t volatile           fMouseStatus;
+     * be enabled for the host.
+     * @note We invert the VMMDEV_MOUSE_GUEST_NEEDS_HOST_CURSOR feature in this
+     * bitmap.  The logic of this is that the real feature is when the host
+     * cursor is not needed, and we tell the host it is not needed if any
+     * session explicitly fails to assert it.  Storing it inverted simplifies
+     * the checks.
+     * Use under the VBOXGUESTDEVEXT#SessionSpinlock lock. */
+    uint32_t                    fMouseStatus;
 #ifdef RT_OS_DARWIN
     /** Pointer to the associated org_virtualbox_VBoxGuestClient object. */