windows/SystemInterpreter.hpp

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/* Copyright (c) 2005-2009 Rexx Language Association. All rights reserved.    */
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/*****************************************************************************/
/* REXX Windows Support                                                      */
/*                                                                           */
/* Main Windows interpreter control.  This is the preferred location for     */
/* all platform dependent global variables.                                  */
/* The interpreter does not instantiate an instance of this                  */
/* class, so most variables and methods should be static.                    */
/*                                                                           */
/*                                                                           */
/*****************************************************************************/
 
#ifndef SystemInterpreter_Included
#define SystemInterpreter_Included
 
#include "RexxCore.h"
 
class InterpreterInstance;
class RexxDateTime;
class RexxBuffer;
 
class SystemInterpreter
{
public:
    static void live(size_t);
    static void liveGeneral(int reason);
 
    static void processStartup(HINSTANCE mod);
    static void processShutdown();
 
    static void startInterpreter();
    static void terminateInterpreter();
 
    static void initializeInstance(InterpreterInstance *instance);
    static void terminateInstance(InterpreterInstance *instance);
 
    static void startTimeSlice();
    static void stopTimeSlice();
    static inline void setTimeSliceTimerThread(HANDLE h) { timeSliceTimerThread = h; }
    static bool loadMessage(wholenumber_t code, char *buffer, size_t bufferLength);
 
    static RexxObject *popEnvironment(RexxActivation *context);
    static RexxObject *pushEnvironment(RexxActivation *context);
    static void restoreEnvironment(void *CurrentEnv);
    static RexxString *qualifyFileSystemName(RexxString *name);
    static void getCurrentTime(RexxDateTime *Date );
    static RexxString *getSystemName();
    static RexxString *getSourceString(RexxString *callType, RexxString * programName);
    static void releaseResultMemory(void *);
    static void *allocateResultMemory(size_t);
    static RexxString *getMessageHeader(wholenumber_t code);
    static RexxString *getMessageText(wholenumber_t code);
    static RexxString *getUserid();
    static bool valueFunction(RexxString *name, RexxObject *newValue, RexxString *selector, RexxObject *&result);
    static RexxString *getDefaultAddressName();
    static bool invokeExternalFunction(RexxActivation *, RexxActivity *, RexxString *, RexxObject **, size_t, size_t, RexxString *, ProtectedObject &);
    static void validateAddressName(RexxString *name );
    static void loadImage(char **imageBuffer, size_t *imageSize);
    static RexxBuffer *readProgram(const char *file_name);
    static bool processSignal(DWORD dwCtrlType);
 
    static ULONG exceptionHostProcessId;
    static HANDLE exceptionHostProcess;
    static bool exceptionConsole;
    static bool explicitConsole;
    static int signalCount;
 
protected:
 
    static HINSTANCE moduleHandle;      // handle to the interpeter DLL
    static HANDLE timeSliceTimerThread; // handle of the time slice thread
};
 
#endif