module

Timestamp:

May 8, 2008 11:47:27 AM (17 years ago)

Author:

vboxsync

Message:

Linux additions: Only VbglHGCMCall() can deal with cancelled requests

File:

trunk/src/VBox/Additions/linux/module/cmc.c

-              r8693
+              r8700
+{
     VBoxDevice *dev = pvData;
+    wait_event (dev->eventq, pHeader->fu32Flags & VBOX_HGCM_REQ_DONE);
+}
+static DECLVBGL(void)
+vboxadd_hgcm_callback_interruptible (VMMDevHGCMRequestHeader *pHeader, void *pvData, uint32_t u32Data)
+{
+    VBoxDevice *dev = pvData;
     wait_event_interruptible (dev->eventq, pHeader->fu32Flags & VBOX_HGCM_REQ_DONE);
+}
 …
     switch (func)
+    {
+        /* this function can NOT handle cancelled requests */
         case IOCTL_VBOXGUEST_HGCM_CONNECT:
             return VbglHGCMConnect (data, vboxadd_hgcm_callback, opaque, 0);
+        /* this function can NOT handle cancelled requests */
         case IOCTL_VBOXGUEST_HGCM_DISCONNECT:
             return VbglHGCMDisconnect (data, vboxadd_hgcm_callback, opaque, 0);
+        /* this function can handle cancelled requests */
         case IOCTL_VBOXGUEST_HGCM_CALL:
             return VbglHGCMCall (data, vboxadd_hgcm_callback, opaque, 0);
+            return VbglHGCMCall (data, vboxadd_hgcm_callback_interruptible, opaque, 0);
         default:

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