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Diffstat (limited to 'ace/Event_Handler_T.h')
| -rw-r--r-- | ace/Event_Handler_T.h | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/ace/Event_Handler_T.h b/ace/Event_Handler_T.h deleted file mode 100644 index 2f71ebcfea3..00000000000 --- a/ace/Event_Handler_T.h +++ /dev/null @@ -1,181 +0,0 @@ -/* -*- C++ -*- */ -// $Id$ - -// ============================================================================ -// -// = LIBRARY -// ace -// -// = FILENAME -// Event_Handler_T.h -// -// = AUTHOR -// Doug Schmidt -// -// ============================================================================ - -#if !defined (ACE_EVENT_HANDLER_T_H) -#define ACE_EVENT_HANDLER_T_H - -#include "ace/Event_Handler.h" - -#if defined (ACE_HAS_TEMPLATE_TYPEDEFS) - -template <class T> -class ACE_Export ACE_Event_Handler_T : public ACE_Event_Handler -{ - // = TITLE - // Enable a class that doesn't inherit from the - // ACE_Event_Handler to be incorporated into the ACE_Reactor - // framework. Thanks to Greg Lavender (g.lavender@isode.com) - // for sharing this idea. - // - // = DESCRIPTION - // It is sometimes the case that an application has a hierarchy - // of operation dispatcher classes that have their own - // inheritance hierarchy but also would like to integrate with - // the ACE_Reactor. Rather than adopt a "mixin" approach, it is - // often cleaner to define a template as a subclass of - // ACE_Event_Handler and paramterize it with an operation - // dispatcher type. - // - // When constructing an instantiation of the ACE_Event_Handler_T - // object, a set of pointers to member functions must be - // provided so that when one of the handle_* methods is called - // by the ACE_Reactor, the appropriate method is called on the - // underlying operations object. This is done since in some - // cases it is useful to map any event that happens to the same - // method on an object. - // - // The ACE_Event_Handler_T template is instantiated by an - // operations object and registered with the ACE_Reactor, and it - // then calls the appropriate op_handler. So, it's basically - // just another level of indirection in event dispatching. The - // coupling betweent the ultimate handler of the event and the - // ACE_Event_Handler class is relaxed a bit by have this - // intermediate <op_handler_> object of type <T> around. The - // client object can then dynamically change the bindings for - // the various handlers so that during the life of one of the - // operation objects, it can change how it wants events to be - // handled. It just instantiates a new instance of the template - // with different bindings and reregisters this new object with - // the ACE_Reactor. -public: - // = Typedefs to simplify pointer-to-member-function registration. - - // Get/set the underlying handle. - typedef ACE_HANDLE (T::*GET_HANDLE) (void) const; - typedef void (T::*SET_HANDLE) (ACE_HANDLE); - - typedef int (T::*IO_HANDLER) (ACE_HANDLE); - // Handle I/O events. - - typedef int (T::*TO_HANDLER) (const ACE_Time_Value &, const void *); - // Handle timeout events. - - typedef int (T::*CL_HANDLER) (ACE_HANDLE, ACE_Reactor_Mask); - // Handle close events. - - typedef int (T::*SIG_HANDLER) (ACE_HANDLE -#if defined(ACE_HAS_SIGINFO_T) -, siginfo_t*, ucontext_t* -#endif /* ACE_HAS_SIGINFO_T */ -); - // = Initialization and termination methods. - - ACE_Event_Handler_T (T *op_handler, - int delete_handler, - GET_HANDLE get_handle = 0, - IO_HANDLER input = 0, - CL_HANDLER close = 0, - SIG_HANDLER sig = 0, - TO_HANDLER timeout = 0, - IO_HANDLER output = 0, - SET_HANDLE set_handle = 0, - IO_HANDLER except = 0); - // Initialize the op_handler. - - ~ACE_Event_Handler_T (void); - // Close down and delete the <op_handler> - - // = Override all the ACE_Event_Handler methods and have them call - // through to the <T> operations handler. - virtual ACE_HANDLE get_handle (void) const; - virtual void set_handle (ACE_HANDLE); - virtual int handle_input (ACE_HANDLE fd = -1); - virtual int handle_output (ACE_HANDLE fd = -1); - virtual int handle_exception (ACE_HANDLE fd = -1); - virtual int handle_timeout (const ACE_Time_Value &tv, const void *arg = 0); - virtual int handle_close (ACE_HANDLE fd, ACE_Reactor_Mask close_mask); - virtual int handle_signal (ACE_HANDLE signum, siginfo_t * = 0, ucontext_t * = 0); - - // = Get/set the operations handler. - T *op_handler (void); - void op_handler (T *); - - // = Get/set the target pointer-to-member-function used for - // dispatching. - - GET_HANDLE handle_get (void); - void handle_get (GET_HANDLE); - - SET_HANDLE handle_set (void); - void handle_set (SET_HANDLE); - - IO_HANDLER input_handler (void); - void input_handler (IO_HANDLER); - - IO_HANDLER output_handler (void); - void output_handler (IO_HANDLER); - - IO_HANDLER except_handler (void); - void except_handler (IO_HANDLER); - - TO_HANDLER to_handler (void); - void to_handler (TO_HANDLER); - - CL_HANDLER cl_handler (void); - void cl_handler (CL_HANDLER); - - SIG_HANDLER sig_handler (void); - void sig_handler (SIG_HANDLER); - - void dump (void) const; - // Dump the state of an object. - - ACE_ALLOC_HOOK_DECLARE; - // Declare the dynamic allocation hooks. - -protected: - T *op_handler_; - // Pointer to the object that handles all the delegated operations. - - // = Handle input, output, and exception events. - IO_HANDLER input_handler_; - IO_HANDLER output_handler_; - IO_HANDLER except_handler_; - - TO_HANDLER to_handler_; - // Handle timeout events. - - CL_HANDLER cl_handler_; - // Handle close events. - - SIG_HANDLER sig_handler_; - // Handle signal events. - - int delete_handler_; - // Keeps track of whether we need to delete the handler in the - // destructor. - - // = Get/set underlying handle. - SET_HANDLE set_handle_; - GET_HANDLE get_handle_; -}; - -#if defined (__ACE_INLINE__) -#include "ace/Event_Handler_T.i" -#endif /* __ACE_INLINE__ */ - -#endif /* ACE_HAS_TEMPLATE_TYPEDEFS */ -#endif /* ACE_EVENT_HANDLER_H */ |