//%////-*-c++-*-//////////////////////////////////////////////////////////////// // // Copyright (c) 2000, 2001 The Open group, BMC Software, Tivoli Systems, IBM // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to // deal in the Software without restriction, including without limitation the // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or // sell copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. // //============================================================================== // // Author: Mike Day (mdday@us.ibm.com) <<< Wed Mar 13 20:49:40 2002 mdd >>> // // Modified By: // //%///////////////////////////////////////////////////////////////////////////// #ifndef Pegasus_Module_Controller_h #define Pegasus_Module_Controller_h #include #include #include #include #include #include #include #include #include #include PEGASUS_NAMESPACE_BEGIN class ModuleController; class PEGASUS_COMMON_LINKAGE pegasus_module { private: class PEGASUS_COMMON_LINKAGE module_rep { public: 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 *)); ~module_rep(void) ; Boolean operator == (const module_rep *rep) const { if (rep == this ) return true; return false; } Boolean operator == (const module_rep &rep) const { if (rep == *this) return true; return false; } Boolean operator == (void *rep) const { if ( (void *)this == rep ) return true; return false; } void reference(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 _send_shutdown_notify(void); void lock(void) { _thread_safety.lock(pegasus_thread_self()); } void unlock(void) { _thread_safety.unlock(); } private: module_rep(void); module_rep(const module_rep & ); module_rep& operator= (const module_rep & ); Mutex _thread_safety; ModuleController *_controller; 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");} 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();} 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(void); pegasus_module & operator= (const pegasus_module & mod); Boolean operator == (const pegasus_module *mod) const; 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: module_rep *_rep; pegasus_module(void); pegasus_module(const pegasus_module & mod); Boolean _rcv_msg(Message *) ; Message * _receive_message(Message *msg); void _send_async_callback(Uint32 msg_handle, Message *msg) ; void _send_shutdown_notify(void); Boolean _shutdown(void); void reference(void) { _rep->reference(); } void dereference(void) { _rep->dereference(); } friend class ModuleController; }; 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; private: class PEGASUS_COMMON_LINKAGE client_handle : pegasus_authorization_handle { public: typedef pegasus_authorization_handle Base; client_handle(pegasus_base_identity & id) :Base(id) { } ~client_handle(void); virtual Boolean authorized(Uint32 operation); virtual Boolean authorized(void); private: bitset<32> allowed_operations; }; public: ModuleController(const char *name); ModuleController(const char *name, Sint16 min_threads, Sint16 max_threads, struct timeval & create_thread, struct timeval & destroy_thread, struct timeval & deadlock); ~ModuleController(void); static ModuleController & get_client_handle(const String & controller_name, void **handle); // module api static ModuleController & register_module(const String & controller_name, 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) throw(AlreadyExists, IncompatibleTypes); Boolean deregister_module(const String & module_name) throw(Permission); Uint32 find_service(pegasus_module & handle, const String & name) throw(Permission); Uint32 find_module_in_service(pegasus_module & handle, const String & module_name) throw(Permission, IPCException); pegasus_module * get_module_reference(pegasus_module & my_handle, const String & module_name) throw(Permission); // send a message to another service AsyncReply *ModuleSendWait(pegasus_module & handle, Uint32 destination_q, AsyncRequest *request) throw(Permission, IPCException); // send a message to another module via another service AsyncReply *ModuleSendWait(pegasus_module & handle, Uint32 destination_q, String & destination_module, AsyncRequest *message) throw(Permission, Deadlock, IPCException); // send an async message to another service Boolean ModuleSendAsync(pegasus_module & handle, Uint32 msg_handle, Uint32 destination_q, AsyncRequest *message) throw(Permission, IPCException); // send an async message to another module via another service Boolean ModuleSendAsync(pegasus_module & handle, Uint32 msg_handle, Uint32 destination_q, String & destination_module, AsyncRequest *message) throw(Permission, IPCException); void blocking_thread_exec(pegasus_module & handle, PEGASUS_THREAD_RETURN (PEGASUS_THREAD_CDECL *thread_func)(void *), void *parm) throw(Permission, Deadlock, IPCException); void async_thread_exec(pegasus_module & handle, PEGASUS_THREAD_RETURN (PEGASUS_THREAD_CDECL *thread_func)(void *), void *parm) throw(Permission, Deadlock, IPCException); Boolean verify_handle(pegasus_module *); 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: static void _async_handleEnqueue(AsyncOpNode *h, MessageQueue *q, void *parm); DQueue _modules; ThreadPool _thread_pool; }; PEGASUS_NAMESPACE_END #endif // Pegasus_Module_Controller_H