Changeset 30668 in vbox for trunk/src/VBox/Additions/common/VBoxGuestLib

Timestamp:

Jul 6, 2010 2:26:53 PM (15 years ago)

Author:

vboxsync

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

63427

Message:

Generate a session id for the VM that is changed every time the VM starts, resets or is restored.

File:

• trunk/src/VBox/Additions/common/VBoxGuestLib/VBoxGuestR3LibMisc.cpp (modified) (1 diff)

trunk/src/VBox/Additions/common/VBoxGuestLib/VBoxGuestR3LibMisc.cpp

@@ -75 +75 @@
 }
 
+/**
+ * Query the session id of this VM; this is a unique id that gets changed for each VM start, reset or restore.
+ * Useful for detection a VM restore.
+ *
+ * @returns IPRT status code.
+ * pu64IdSession    Session id (out)
+ *
+ */
+VBGLR3DECL(int) VbglR3GetSessionId(uint64_t *pu64IdSession)
+{
+    VMMDevReqSessionId Req;
+
+    vmmdevInitRequest(&Req.header, VMMDevReq_GetSessionId);
+    int rc = vbglR3GRPerform(&Req.header);
+    if (rc == VINF_SUCCESS)
+        *pu64IdSession = Req.idSession;
+
+    return rc;
+}