pegasus/src/Pegasus/Common/ModuleController.h - diff

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Diff for /pegasus/src/Pegasus/Common/ModuleController.h between version 1.2 and 1.40

version 1.2, 2002/03/14 23:28:56

version 1.40, 2005/03/10 00:38:17

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//%////-*-c++-*-////////////////////////////////////////////////////////////////

//%2005////////////////////////////////////////////////////////////////////////

// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.

// IBM Corp.; EMC Corporation, The Open Group.

// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.

// EMC Corporation; VERITAS Software Corporation; The Open Group.

// Permission is hereby granted, free of charge, to any person obtaining a copy

// of this software and associated documentation files (the "Software"), to

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// Author: Mike Day (mdday@us.ibm.com) <<< Wed Mar 13 20:49:40 2002 mdd >>>

// Modified By:

// Modified By: Amit K Arora, IBM (amita@in.ibm.com)

//%/////////////////////////////////////////////////////////////////////////////

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#define Pegasus_Module_Controller_h

#include <Pegasus/Common/Config.h>

#include <Pegasus/Common/Constants.h>

#include <Pegasus/Common/Message.h>

#include <Pegasus/Common/Exception.h>

#include <Pegasus/Common/InternalException.h>

#include <Pegasus/Common/IPC.h>

#include <Pegasus/Common/Thread.h>

#include <Pegasus/Common/AsyncOpNode.h>

#include <Pegasus/Common/Cimom.h>

#include <Pegasus/Common/CimomMessage.h>

#include <Pegasus/Common/MessageQueueService.h>

#include <Pegasus/Common/peg_authorization.h>

#include <Pegasus/Common/Linkage.h>

#include <Pegasus/Common/AutoPtr.h>

PEGASUS_NAMESPACE_BEGIN

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class PEGASUS_COMMON_LINKAGE pegasus_module

{

private:

class module_rep : public pegasus_auth_handle

{

public:

typedef pegasus_auth_handle Base;

pegasus_module()

module_rep(ModuleController *controller,

{

const String & name,

}

void *module_address,

Message * (*receive_message)(Message *, void *),

void (*async_callback)(Uint32, Message *, void *),

void (*shutdown_notify)(Uint32 code, void *));

virtual ~pegasus_module()

~module_rep(void) ;

{

}

Boolean operator == (const service_module *) const;

Boolean operator == (const module_rep *rep) const

Boolean operator == (const String & ) const ;

{ if (rep == this ) return true; return false; }

Boolean operator == (const service_module & ) const ;

Boolean operator == (const void *) const;

String & get_name(void);

Boolean operator == (const module_rep &rep) const

{ if (rep == *this) return true; return false; }

// introspection interface

Boolean operator == (void *rep) const

virtual Boolean query_interface(String & class_id,

{ if ( (void *)this == rep ) return true; return false; }

void **object_ptr) = 0;

virtual Uint32 reference(void) { _reference_count++; }

void reference(void) { _reference_count++; }

virtual Uint32 dereference(void) { _reference_count--; }

void dereference(void) { _reference_count--; }

Uint32 reference_count(void) { return _reference_count.value(); }

const String & get_name(void) const { return _name; }

void *get_module_address(void) const { return _module_address; }

Message * module_receive_message(Message *msg);

void _send_async_callback(Uint32 msg_handle, Message *msg, void *parm);

void _send_shutdown_notify(void);

void lock(void) { _thread_safety.lock(pegasus_thread_self()); }

void unlock(void) { _thread_safety.unlock(); }

Boolean authorized(void) ;

Boolean authorized(Uint32);

Boolean authorized(Uint32, Uint32);

private:

virtual Boolean _rcv_msg(Message *) = 0;

module_rep(void);

virtual void _send_async_callback(Uint32 msg_handle, Message *msg) = 0;

module_rep(const module_rep & );

module_rep & operator= (const module_rep & rep);

virtual Boolean _shutdown(Uint32) = 0;

Mutex _thread_safety;

ModuleController *_controller;

AutoPtr<ModuleController> _controller;//PEP101

String _name;

AtomicInt _reference_count;

AtomicInt _shutting_down;

void *_module_address;

Message * (*_receive_message)(Message *, void *);

void (*_async_callback)(Uint32, Message *, void *);

void (*_shutdown_notify)(Uint32 code, void *);

static Message * default_receive_message(Message *msg, void *inst)

{ throw NotImplemented("Module Receive"); return 0; }

static void default_async_callback(Uint32 handle, Message *msg, void *inst)

{ throw NotImplemented("Module Async Receive"); }

static void default_shutdown_notify(Uint32 code, void *inst)

{ return; }

static Message * closed_receive_message(Message *msg, void *inst)

{ throw ModuleClosed(); return 0; }

static void closed_async_callback(Uint32 handle, Message *msg, void *inst)

{ throw ModuleClosed(); }

friend class ModuleController;

};

public:

pegasus_module(ModuleController *controller,

const String &id,

void *module_address,

Message * (*receive_message)(Message *, void *),

void (*async_callback)(Uint32, Message *, void *),

void (*shutdown_notify)(Uint32 code, void *)) ;

pegasus_module(const pegasus_module & mod);

pegasus_module & operator= (const pegasus_module & mod);

virtual ~pegasus_module(void);

virtual Boolean authorized(Uint32 operation);

virtual Boolean authorized(void);

Boolean operator == (const pegasus_module & mod) const ;

Boolean operator == (const String & mod) const;

Boolean operator == (const void *mod) const;

const String & get_name(void) const;

// introspection interface

Boolean query_interface(const String & class_id, void **object_ptr) const;

private:

AutoPtr<module_rep> _rep;//PEP101

pegasus_module(void)

{

}

Boolean _rcv_msg(Message *) ;

Message * _receive_message(Message *msg);

void _send_async_callback(Uint32 msg_handle, Message *msg, void *) ;

void _send_shutdown_notify(void);

Boolean _shutdown(void);

PEGASUS_STD(bitset<32>) _allowed_operations;

void reference(void) { _rep->reference(); }

void dereference(void) { _rep->dereference(); }

friend class ModuleController;

};

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class PEGASUS_COMMON_LINKAGE ModuleController : public MessageQueueService

{

public:

typedef MessageQueueService Base;

static const Uint32 GET_CLIENT_HANDLE;

static const Uint32 REGISTER_MODULE;

static const Uint32 DEREGISTER_MODULE;

static const Uint32 FIND_SERVICE;

static const Uint32 FIND_MODULE_IN_SERVICE;

static const Uint32 GET_MODULE_REFERENCE;

static const Uint32 MODULE_SEND_WAIT;

static const Uint32 MODULE_SEND_WAIT_MODULE;

static const Uint32 MODULE_SEND_ASYNC;

static const Uint32 MODULE_SEND_ASYNC_MODULE;

static const Uint32 BLOCKING_THREAD_EXEC;

static const Uint32 ASYNC_THREAD_EXEC;

static const Uint32 CLIENT_SEND_WAIT;

static const Uint32 CLIENT_SEND_WAIT_MODULE;

static const Uint32 CLIENT_SEND_ASYNC;

static const Uint32 CLIENT_SEND_ASYNC_MODULE;

static const Uint32 CLIENT_BLOCKING_THREAD_EXEC;

static const Uint32 CLIENT_ASYNC_THREAD_EXEC;

static const Uint32 CLIENT_SEND_FORGET;

static const Uint32 CLIENT_SEND_FORGET_MODULE;

static const Uint32 MODULE_SEND_FORGET;

static const Uint32 MODULE_SEND_FORGET_MODULE;

// ATTN-DME-P2-20020406 Removed private declaration. client_handle is

// currently used in Pegasus/Provider/CIMOMHandle.cpp

// private:

class client_handle : public pegasus_auth_handle

{

public:

typedef pegasus_auth_handle Base;

client_handle(const pegasus_identity & id)

:Base(id) ,

allowed_operations( GET_CLIENT_HANDLE |

FIND_SERVICE |

FIND_MODULE_IN_SERVICE |

GET_MODULE_REFERENCE |

CLIENT_SEND_WAIT |

CLIENT_SEND_WAIT_MODULE |

CLIENT_SEND_ASYNC |

CLIENT_SEND_ASYNC_MODULE |

CLIENT_BLOCKING_THREAD_EXEC |

CLIENT_ASYNC_THREAD_EXEC),

reference_count(1)

{

}

~client_handle(void)

{

}

client_handle & operator=(const client_handle & handle)

{

if(this == &handle)

return *this;

reference_count++;

return *this;

}

virtual Boolean authorized(Uint32, Uint32);

virtual Boolean authorized(Uint32 operation);

virtual Boolean authorized(void);

PEGASUS_STD(bitset<32>) allowed_operations;

AtomicInt reference_count;

};

class callback_handle

{

public:

static void * operator new(size_t );

static void operator delete(void *, size_t);

private:

static callback_handle *_head;

static const int BLOCK_SIZE;

static Mutex _alloc_mut;

public:

callback_handle(pegasus_module * module, void *parm)

: _module(module), _parm(parm)

{

}

~callback_handle()

{

if( _module->get_name() == String(PEGASUS_MODULENAME_TEMP) )

// delete _module;

_module.reset();

}

AutoPtr<pegasus_module> _module;//PEP101

void *_parm;

};

public:

typedef MesageQueueService Base;

ModuleController(const char *name, Uint32 queueID);

ModuleController(const char *name);

/* ModuleController(const char *name, */

/* Sint16 min_threads, */

/* Sint16 max_threads, */

/* struct timeval & create_thread, */

/* struct timeval & destroy_thread); */

~ModuleController(void);

// module api

ModuleController & register_module(pegasus_module *);

static ModuleController & register_module(const String & controller_name,

deregister_module(pegasus_module *);

const String & module_name,

void *module_address,

Message * (*receive_message)(Message *, void *),

void (*async_callback)(Uint32, Message *, void *),

void (*shutdown_notify)(Uint32, void *),

pegasus_module **instance = NULL)

Uint32 find_service(pegasus_module & handle, String & name);

throw(AlreadyExistsException, IncompatibleTypesException);

String & find_service(pegasus_module & handle, Uint32 queue_id);

pegasus_module & get_module_reference(pegasus_module & handle, String & name);

Boolean deregister_module(const String & module_name)

throw(Permission);

Uint32 find_service(const pegasus_module & handle, const String & name) throw(Permission);

Uint32 find_module_in_service(const pegasus_module & handle,

const String & module_name)

throw(Permission, IPCException);

pegasus_module * get_module_reference(const pegasus_module & my_handle,

const String & module_name)

throw(Permission);

// send a message to another service

Message *ModuleSendWait(pegasus_module & handle,

AsyncReply *ModuleSendWait(const pegasus_module & handle,

Uint32 destination_q,

Message *message);

AsyncRequest *request) throw(Permission, IPCException);

// send a message to another module via another service

Message *ModuleSendWait(pegasus_module & handle,

AsyncReply *ModuleSendWait(const pegasus_module & handle,

Uint32 destination_q,

String & destination_module,

const String & destination_module,

Message *message);

AsyncRequest *message) throw(Permission, Deadlock, IPCException);

// send a message to another service

// send an async message to another service

Boolean ModuleSendAsync(pegasus_module & handle,

Boolean ModuleSendAsync(const pegasus_module & handle,

Uint32 msg_handle,

Uint32 destination_q,

Message *message);

AsyncRequest *message,

void *callback_parm) throw(Permission, IPCException);

// send a message to another module via another service

// send an async message to another module via another service

Boolean ModuleSendAsync(pegasus_module & handle,

Boolean ModuleSendAsync(const pegasus_module & handle,

Uint32 msg_handle,

Uint32 destination_q,

String & destination_module,

const String & destination_module,

Message *message);

AsyncRequest *message,

void *callback_parm) throw(Permission, IPCException);

Boolean ModuleSendForget(const pegasus_module & handle,

Uint32 destination_q,

AsyncRequest *message)

throw(Permission, IPCException);

Uint32 blocking_thread_exec(pegasus_module & handle,

Boolean ModuleSendForget(const pegasus_module & handle,

Uint32 destination_q,

const String & destination_module,

AsyncRequest *message)

throw(Permission, IPCException);

void blocking_thread_exec(const pegasus_module & handle,

PEGASUS_THREAD_RETURN (PEGASUS_THREAD_CDECL *thread_func)(void *),

void *parm);

void *parm) throw(Permission, Deadlock, IPCException);

Uint32 async_thread_exec(pegasus_module & handle,

void async_thread_exec(const pegasus_module & handle,

PEGASUS_THREAD_RETURN (PEGASUS_THREAD_CDECL *thread_func)(void *),

void *parm);

void *parm) throw(Permission, Deadlock, IPCException);

// << Thu Mar 14 09:52:56 2002 mdd >>

Boolean verify_handle(pegasus_module *);

// need to add a blocking semaphore to ThreadPool for "joinable" threads

// need to define a special message type for sending messages to modules

static ModuleController & get_client_handle(const pegasus_identity & id,

client_handle **handle)

throw(IncompatibleTypesException);

static ModuleController & get_client_handle(const char *controller,

const pegasus_identity & id,

client_handle **handle)

throw(IncompatibleTypesException);

void return_client_handle(client_handle *handle);

// send a message to another service

AsyncReply *ClientSendWait(const client_handle & handle,

Uint32 destination_q,

AsyncRequest *request)

throw(Permission, IPCException);

// send a message to another module via another service

AsyncReply *ClientSendWait(const client_handle & handle,

Uint32 destination_q,

String & destination_module,

AsyncRequest *message)

throw(Permission, Deadlock, IPCException);

// send an async message to another service

Boolean ClientSendAsync(const client_handle & handle,

Uint32 msg_handle,

Uint32 destination_q,

AsyncRequest *message,

void (*async_callback)(Uint32, Message *, void *) ,

void *callback_parm)

throw(Permission, IPCException);

// send an async message to another module via another service

Boolean ClientSendAsync(const client_handle & handle,

Uint32 msg_handle,

Uint32 destination_q,

const String & destination_module,

AsyncRequest *message,

void (*async_callback)(Uint32, Message *, void *),

void *callback_parm )

throw(Permission, IPCException);

Boolean ClientSendForget(const client_handle & handle,

Uint32 destination_q,

AsyncRequest *message)

throw(Permission, IPCException);

Boolean ClientSendForget(const client_handle & handle,

Uint32 destination_q,

const String & destination_module,

AsyncRequest *message)

throw(Permission, IPCException);

void client_blocking_thread_exec(const client_handle & handle,

PEGASUS_THREAD_RETURN (PEGASUS_THREAD_CDECL *thread_func)(void *),

void *parm)

throw(Permission, Deadlock, IPCException);

void client_async_thread_exec(const client_handle & handle,

PEGASUS_THREAD_RETURN (PEGASUS_THREAD_CDECL *thread_func)(void *),

void *parm)

throw(Permission, Deadlock, IPCException);

protected:

// ATTN-RK-P2-20010322: These methods are pure virtual in superclass

virtual void handleEnqueue(void) {}

virtual void handleEnqueue(Message *) {}

virtual void _handle_async_request(AsyncRequest *rq);

virtual void _handle_async_callback(AsyncOpNode *op);

private:

class _module_lock

{

public:

_module_lock(DQueue<pegasus_module> * list)

:_list(list)

{

_list->lock();

}

~_module_lock(void)

{

_list->unlock();

}

private:

_module_lock();

DQueue<pegasus_module> * _list;

};

static void _async_handleEnqueue(AsyncOpNode *h, MessageQueue *q, void *parm);

DQueue<pegasus_module> _modules;

ThreadPool _thread_pool;

pegasus_module _internal_module;

AsyncReply *_send_wait(Uint32, AsyncRequest *);

AsyncReply *_send_wait(Uint32, const String &, AsyncRequest *);

Boolean _send_forget(Uint32, AsyncRequest *) throw(IPCException);

Boolean _send_forget(Uint32, const String &, AsyncRequest *) throw(IPCException);

void _blocking_thread_exec(

PEGASUS_THREAD_RETURN (PEGASUS_THREAD_CDECL *thread_func)(void *),

void *parm) ;

void _async_thread_exec(

PEGASUS_THREAD_RETURN (PEGASUS_THREAD_CDECL *thread_func)(void *),

void *parm) ;

};

PEGASUS_NAMESPACE_END

#endif // Pegasus_Module_Controller_h

#endif // Pegasus_Module_Controller_H

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	Added in v.1.40

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