1 files changed, 88 insertions, 0 deletions
diff --git a/src/VBox/Main/include/ClientWatcher.h b/src/VBox/Main/include/ClientWatcher.h
new file mode 100644
index 00000000..6e9d26b6
--- /dev/null
+++ b/src/VBox/Main/include/ClientWatcher.h
@@ -0,0 +1,88 @@
+/* $Id: ClientWatcher.h $ */
+
+/** @file
+ *
+ * VirtualBox API client session watcher
+ */
+
+/*
+ * Copyright (C) 2013 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ */
+
+#ifndef ____H_CLIENTWATCHER
+#define ____H_CLIENTWATCHER
+
+#include <list>
+#include <VBox/com/ptr.h>
+#include <VBox/com/AutoLock.h>
+
+#include "VirtualBoxImpl.h"
+
+#if defined(RT_OS_WINDOWS)
+# define CWUPDATEREQARG NULL
+# define CWUPDATEREQTYPE HANDLE
+#elif defined(RT_OS_OS2)
+# define CWUPDATEREQARG NIL_RTSEMEVENT
+# define CWUPDATEREQTYPE RTSEMEVENT
+#elif defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER) || defined(VBOX_WITH_GENERIC_SESSION_WATCHER)
+# define CWUPDATEREQARG NIL_RTSEMEVENT
+# define CWUPDATEREQTYPE RTSEMEVENT
+#else
+# error "Port me!"
+#endif
+
+/**
+ * Class which checks for API clients which have crashed/exited, and takes
+ * the necessary cleanup actions. Singleton.
+ */
+class VirtualBox::ClientWatcher
+{
+public:
+    /**
+     * Constructor which creates a usable instance
+     *
+     * @param pVirtualBox   Reference to VirtualBox object
+     */
+    ClientWatcher(const ComObjPtr<VirtualBox> &pVirtualBox);
+
+    /**
+     * Default destructor. Cleans everything up.
+     */
+    ~ClientWatcher();
+
+    bool isReady();
+
+    void update();
+    void addProcess(RTPROCESS pid);
+
+private:
+    /**
+     * Default constructor. Don't use, will not create a sensible instance.
+     */
+    ClientWatcher();
+
+    static DECLCALLBACK(int) worker(RTTHREAD /* thread */, void *pvUser);
+
+    VirtualBox *mVirtualBox;
+    RTTHREAD mThread;
+    CWUPDATEREQTYPE mUpdateReq;
+    util::RWLockHandle mLock;
+
+    typedef std::list<RTPROCESS> ProcessList;
+    ProcessList mProcesses;
+
+#if defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER) || defined(VBOX_WITH_GENERIC_SESSION_WATCHER)
+    uint8_t mUpdateAdaptCtr;
+#endif
+};
+
+#endif /* !____H_CLIENTWATCHER */
+/* vi: set tabstop=4 shiftwidth=4 expandtab: */