Changeset 11409 in vbox

Timestamp:

Aug 13, 2008 7:35:50 PM (16 years ago)

Author:

vboxsync

Message:

Do not call HGCM after it has been shut down.

Location:

trunk/src/VBox/Main

Files:

• VMMDevInterface.cpp (modified) (4 diffs)
• include/VMMDev.h (modified) (1 diff)

trunk/src/VBox/Main/VMMDevInterface.cpp

@@ -94 +94 @@
     rc = HGCMHostInit ();
     AssertRC(rc);
+    m_fHGCMActive = true;
 #endif /* VBOX_HGCM */
     mu32CredentialsFlags = 0;
@@ -575 +576 @@
 int VMMDev::hgcmLoadService (const char *pszServiceLibrary, const char *pszServiceName)
 {
+    if (ASMAtomicReadBool(&m_fHGCMActive) == false)
+    {
+        return VERR_INVALID_STATE;
+    }
     return HGCMHostLoad (pszServiceLibrary, pszServiceName);
 }
@@ -581 +586 @@
                           uint32_t cParms, PVBOXHGCMSVCPARM paParms)
 {
+    if (ASMAtomicReadBool(&m_fHGCMActive) == false)
+    {
+        return VERR_INVALID_STATE;
+    }
     return HGCMHostCall (pszServiceName, u32Function, cParms, paParms);
 }
@@ -586 +595 @@
 void VMMDev::hgcmShutdown (void)
 {
+    ASMAtomicWriteBool(&m_fHGCMActive, false);
     HGCMHostShutdown ();
 }

trunk/src/VBox/Main/include/VMMDev.h

@@ -67 +67 @@
     RTSEMEVENT mCredentialsEvent;
     uint32_t mu32CredentialsFlags;
+    
+#ifdef VBOX_HGCM
+    bool m_fHGCMActive;
+#endif /* VBOX_HGCM */
 };