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// Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
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// Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
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#ifndef Pegasus_ModuleController_h
#define Pegasus_ModuleController_h

#include <Pegasus/Common/Config.h>
#include <Pegasus/Common/Linkage.h>
#include <Pegasus/Common/Constants.h>
#include <Pegasus/Common/List.h>
#include <Pegasus/Common/Message.h>
#include <Pegasus/Common/MessageQueueService.h>
#include <Pegasus/Common/AsyncOpNode.h>
#include <Pegasus/Common/AutoPtr.h>

PEGASUS_NAMESPACE_BEGIN

class PEGASUS_COMMON_LINKAGE RegisteredModuleHandle : public Linkable
{
public:
    RegisteredModuleHandle(
        const String& name,
        void* module_address,
        Message* (*receive_message)(Message *, void *));

    virtual ~RegisteredModuleHandle();

    const String& get_name() const;

private:

    RegisteredModuleHandle();
    RegisteredModuleHandle(const RegisteredModuleHandle&);
    RegisteredModuleHandle& operator=(const RegisteredModuleHandle&);

    Message* _receive_message(Message* msg);
    String _name;
    void* _module_address;
    Message* (*_module_receive_message)(Message *, void *);

    friend class ModuleController;
};


class PEGASUS_COMMON_LINKAGE ModuleController : public MessageQueueService
{
public:
    typedef MessageQueueService Base;
    ModuleController(const char *name);

    ~ModuleController();

    void register_module(
        const String& module_name,
        void* module_address,
        Message* (*receive_message)(Message *, void *));

    static ModuleController* getModuleController();

    // send a message to another service
    AsyncReply* ClientSendWait(
        Uint32 destination_q,
        AsyncRequest* request);

    Boolean ClientSendForget(
        Uint32 destination_q,
        AsyncRequest* message);

protected:
    // ATTN-RK-P2-20010322:  These methods are pure virtual in superclass
    virtual void handleEnqueue() {}
    virtual void handleEnqueue(Message *) {}
    virtual void _handle_async_request(AsyncRequest *rq);
    virtual void _handle_async_callback(AsyncOpNode *op);

private:
    typedef List<RegisteredModuleHandle, Mutex> RegisteredModulesList;
    RegisteredModulesList _modules;
};

PEGASUS_NAMESPACE_END

#endif // Pegasus_ModuleController_h