cdev-1.7.2n

include/cdevSystemBase.h

@@ -0,0 +1,56 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) 1994,1995 Southeastern Universities Research Association,
+//                         Continuous Electron Beam Accelerator Facility
+//
+// This software was developed under a United States Government license
+// described in the NOTICE file included as part of this distribution.
+//
+//-----------------------------------------------------------------------------
+//
+// Description:
+//       cdevSystemBase class (abstract class)
+//
+// Author:  Jie Chen & Chip Watson
+//
+// Revision History:
+//   cdevSystemBase.h,v
+// Revision 1.2  1996/05/28  13:00:12  chen
+// minor changes
+//
+// Revision 1.1.1.1  1995/06/16  17:14:08  epics
+// initial import of cdev
+//
+//
+#ifndef _CDEV_SYSTEM_BASE
+#define _CDEV_SYSTEM_BASE
+
+#include "cdevError.h"
+#include "cdevSync.h"
+
+class CDEV_CLASS_SPEC cdevSystemBase: public cdevSync, public cdevError
+{
+ public:
+  virtual ~cdevSystemBase (void);
+  // PURPOSE: destructor for cdevSystemBase
+  // REQUIRE: nothing
+  // PROMISE: it will be gone
+  
+  virtual char *name (void) const = 0;
+  // PURPOSE: pure virtual function
+  // REQUIRE: derived class provides real implementation
+  // PROMISE: nothing
+  
+  virtual int getRequestObject (char *deviceName, 
+				char *msg, 
+				cdevRequestObject* &req) = 0;
+  // PURPOSE: pure virtual function
+  // REQUIRE: callers provide pointer to cdevRequestObject only, no memory
+  // PROMISE: nothing
+  virtual const char *className (void) const {return "cdevSystemBase";}
+
+ protected:
+  //constructor, deny direct instantiation
+  cdevSystemBase (void);
+};
+#endif
+