1 files changed, 58 insertions, 0 deletions
diff --git a/AVStream/avscamera/sys/Waitable.h b/AVStream/avscamera/sys/Waitable.h
new file mode 100644
index 00000000..1f092657
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+++ b/AVStream/avscamera/sys/Waitable.h
@@ -0,0 +1,58 @@
+/**************************************************************************
+
+    A/V Stream Camera Sample
+
+    Copyright (c) 2014, Microsoft Corporation.
+
+    File:
+
+        waitable.h
+
+    Abstract:
+
+        Base interface for any object that is waitable.
+        In otherwords, it contains a kernel dispatch object.
+
+        Also implements a Cancelable interface class.
+
+    History:
+
+        created 5/30/2014
+
+**************************************************************************/
+
+#pragma once
+
+//
+//  Interface definitions for KWaitable and Cancelable
+//
+class KWaitable :
+    public CNonCopyable
+{
+public:
+    KWaitable();
+
+    virtual
+    ~KWaitable();
+
+    virtual
+    NTSTATUS
+    Wait(
+        _In_opt_    PLARGE_INTEGER Timeout = NULL
+    );
+
+    //  Must implement
+    virtual
+    PVOID
+    GetDispatchObject() = 0;
+};
+
+class Cancelable
+{
+public:
+    //  Must implement
+    virtual
+    BOOLEAN
+    Cancel() = 0;
+};
+