PackageManager.hpp

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/* Copyright (c) 2005-2009 Rexx Language Association. All rights reserved.    */
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/******************************************************************************/
/* REXX Kernel                                                                */
/*                                                                            */
/* Primitive Rexx function/method package                                     */
/*                                                                            */
/******************************************************************************/
#ifndef PackageManager_Included
#define PackageManager_Included
 
#include "RexxCore.h"
#include "LibraryPackage.hpp"
 
class BaseCode;
class RoutineClass;
class ProtectedObject;
class RexxArray;
class RexxActivity;
class RexxNativeMethod;
class ProtectedObject;
class PackageClass;
 
class PackageManager
{
public:
    static void live(size_t liveMark);
    static void liveGeneral(int reason);
 
    static void initialize();
    static RexxArray *getImageData();
    static void restore(RexxArray *imageArray);
    static void restore();
    static LibraryPackage    *getLibrary(RexxString *name);
    static LibraryPackage    *loadLibrary(RexxString *name);
    static void        unload();
    static RexxNativeMethod  *resolveMethod(RexxString *packageName, RexxString *methodName);
    static RexxNativeMethod  *loadMethod(RexxString *packageName, RexxString *methodName);
    static RoutineClass *resolveRoutine(RexxString *function, RexxString *packageName, RexxString *procedure);
    static RoutineClass *resolveRoutine(RexxString *packageName, RexxString *function);
    static RoutineClass *loadRoutine(RexxString *packageName, RexxString *function);
    static RoutineClass *resolveRoutine(RexxString *function);
    static RoutineClass *createRegisteredRoutine(RexxString *function);
    static RoutineClass *getLoadedRoutine(RexxString *function);
    static PNATIVEMETHOD resolveMethodEntry(RexxString *package, RexxString *name);
    static PNATIVEROUTINE resolveRoutineEntry(RexxString *package, RexxString *name);
    static PREGISTEREDROUTINE resolveRegisteredRoutineEntry(RexxString *package, RexxString *name);
    static void        addPackageRoutine(RexxString *name, RoutineClass *func);
    static void        loadInternalPackage(RexxString *name, RexxPackageEntry *p);
    static bool        registerPackage(RexxString *name, RexxPackageEntry *p);
    static RexxObject *addRegisteredRoutine(RexxString *name, RexxString *module, RexxString *proc);
    static RexxObject *dropRegisteredRoutine(RexxString *name);
    static RexxObject *queryRegisteredRoutine(RexxString *name);
    static bool        callNativeRoutine(RexxActivity *activity, RexxString *name,
        RexxObject **arguments, size_t argcount, ProtectedObject &result);
 
    static RoutineClass *loadRequires(RexxActivity *activity, RexxString *shortName, RexxString *resolvedName, ProtectedObject &result);
    static RoutineClass *getMacroSpaceRequires(RexxActivity *activity, RexxString *name, ProtectedObject &result, RexxObject *securityManager);
    static RoutineClass *getRequiresFile(RexxActivity *activity, RexxString *name, RexxObject *securityManager, ProtectedObject &result);
    static RoutineClass *loadRequires(RexxActivity *activity, RexxString *name, const char *data, size_t length, ProtectedObject &result);
    static RoutineClass *loadRequires(RexxActivity *activity, RexxString *name, RexxArray *data, ProtectedObject &result);
 
protected:
 
    static RoutineClass *checkRequiresCache(RexxString *name, ProtectedObject &result);
 
    enum
    {
        IMAGE_PACKAGES = 1,
        IMAGE_PACKAGE_ROUTINES,
        IMAGE_REGISTERED_ROUTINES,
        IMAGE_REQUIRES,
        IMAGE_ARRAY_SIZE = IMAGE_REQUIRES
    };
 
    static RexxDirectory *imagePackages;        // our loaded packages
    static RexxDirectory *imagePackageRoutines; // table of functions loaded from packages
    static RexxDirectory *imageRegisteredRoutines;  // table of functions resolved by older registration mechanisms
    static RexxDirectory *imageLoadedRequires;      // table of previously loaded requires files
 
 
    static RexxDirectory *packages;        // our loaded packages
    static RexxDirectory *packageRoutines; // table of functions loaded from packages
    static RexxDirectory *registeredRoutines;  // table of functions resolved by older registration mechanisms
    static RexxDirectory *loadedRequires;      // table of previously loaded requires files
 
    static RexxPackageEntry *rexxPackage;   // internal generated REXX package
};
 
#endif