Changeset 75406 in vbox for trunk/src/VBox/Main/src-client

Timestamp:

Nov 12, 2018 7:49:08 PM (6 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

126548

Message:

VMMDev/HGCM: Added PDM interface + HGCM server helper for finding out if a command/call is being resubmitted on restore or not. This is handy for returning returning an async wait call to the guest upon restore. bugref:3544

File:

• trunk/src/VBox/Main/src-client/HGCM.cpp (modified) (5 diffs)

trunk/src/VBox/Main/src-client/HGCM.cpp

@@ -132 +132 @@
         static DECLCALLBACK(void) svcHlpCallComplete(VBOXHGCMCALLHANDLE callHandle, int32_t rc);
         static DECLCALLBACK(void) svcHlpDisconnectClient(void *pvInstance, uint32_t u32ClientId);
+        static DECLCALLBACK(bool) svcHlpIsCallRestored(VBOXHGCMCALLHANDLE callHandle);
 
     public:
@@ -755 +756 @@
 }
 
+/**
+ * @interface_method_impl{VBOXHGCMSVCHELPERS,pfnCallComplete}
+ */
 /* static */ DECLCALLBACK(void) HGCMService::svcHlpCallComplete(VBOXHGCMCALLHANDLE callHandle, int32_t rc)
 {
@@ -773 +777 @@
 }
 
+/**
+ * @interface_method_impl{VBOXHGCMSVCHELPERS,pfnDisconnectClient}
+ */
 /* static */ DECLCALLBACK(void) HGCMService::svcHlpDisconnectClient(void *pvInstance, uint32_t u32ClientId)
 {
@@ -781 +788 @@
          pService->DisconnectClient(u32ClientId, true);
      }
+}
+
+/**
+ * @interface_method_impl{VBOXHGCMSVCHELPERS,pfnIsCallRestored}
+ */
+/* static */ DECLCALLBACK(bool) HGCMService::svcHlpIsCallRestored(VBOXHGCMCALLHANDLE callHandle)
+{
+    HGCMMsgHeader *pMsgHdr = (HGCMMsgHeader *)(callHandle);
+    AssertPtrReturn(pMsgHdr, false);
+
+    PVBOXHGCMCMD pCmd = pMsgHdr->pCmd;
+    AssertPtrReturn(pCmd, false);
+
+    PPDMIHGCMPORT pHgcmPort = pMsgHdr->pHGCMPort;
+    AssertPtrReturn(pHgcmPort, false);
+
+    return pHgcmPort->pfnIsCmdRestored(pHgcmPort, pCmd);
 }
 
@@ -836 +860 @@
             m_svcHelpers.pvInstance          = this;
             m_svcHelpers.pfnDisconnectClient = svcHlpDisconnectClient;
+            m_svcHelpers.pfnIsCallRestored   = svcHlpIsCallRestored;
 
             /* Execute the load request on the service thread. */