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Diffstat (limited to 'ACE/ace/FlReactor.h')
-rw-r--r-- | ACE/ace/FlReactor.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/ACE/ace/FlReactor.h b/ACE/ace/FlReactor.h new file mode 100644 index 00000000000..75d88b0ab5c --- /dev/null +++ b/ACE/ace/FlReactor.h @@ -0,0 +1,110 @@ +/* -*- C++ -*- */ + +//============================================================================= +/** + * @file FlReactor.h + * + * $Id$ + * + * @author Carlos O'Ryan <coryan@cs.wustl.edu> + * @author Based in part in the ACE_XtReactor implementation by + * @author Eric C. Newton's <ecn@clark.net> + * @author Kirill Rybaltchenko <Kirill.Rybaltchenko@cern.ch> + * @author Douglas C. Schmidt <schmidt@cs.wustl.edu> + */ +//============================================================================= + + +#ifndef ACE_FLREACTOR_H +#define ACE_FLREACTOR_H +#include /**/ "ace/pre.h" + +#include "ace/config-all.h" + +#if !defined (ACE_LACKS_PRAGMA_ONCE) +# pragma once +#endif /* ACE_LACKS_PRAGMA_ONCE */ + +#include "ace/ACE_FlReactor_export.h" +#include "ace/Select_Reactor.h" + +ACE_BEGIN_VERSIONED_NAMESPACE_DECL + +/** + * @class ACE_FlReactor + * + * @brief A Reactor implementation that uses the Fast-Light (FL) toolkit + * for event demultiplexing. This will let us integrate the FL + * toolkit with ACE and/or TAO. + * + * As many other GUI toolkits FL supports a minimal set of + * callbacks to handle event demultiplexing, namely simple methods + * to add file descriptors to the event demuxing set or timeout + * events. This class adapts this simple mechanisms so they are + * compatible with ACE's Reactor. + */ +class ACE_FlReactor_Export ACE_FlReactor : public ACE_Select_Reactor +{ + +public: + // = Initialization and termination methods. + ACE_FlReactor (size_t size = DEFAULT_SIZE, + int restart = 0, + ACE_Sig_Handler * = 0); + virtual ~ACE_FlReactor (void); + + // = Timer operations. + virtual long schedule_timer (ACE_Event_Handler *event_handler, + const void *arg, + const ACE_Time_Value &delay, + const ACE_Time_Value &interval); + virtual int reset_timer_interval (long timer_id, + const ACE_Time_Value &interval); + virtual int cancel_timer (ACE_Event_Handler *handler, + int dont_call_handle_close = 1); + virtual int cancel_timer (long timer_id, + const void **arg = 0, + int dont_call_handle_close = 1); + +protected: + // = Register timers/handles with Fl. + /// Register a single <handler>. + virtual int register_handler_i (ACE_HANDLE handle, + ACE_Event_Handler *handler, + ACE_Reactor_Mask mask); + + /// Register a set of <handlers>. + virtual int register_handler_i (const ACE_Handle_Set &handles, + ACE_Event_Handler *handler, + ACE_Reactor_Mask mask); + + /// Remove the <handler> associated with this <handle>. + virtual int remove_handler_i (ACE_HANDLE handle, + ACE_Reactor_Mask mask); + + /// Remove a set of <handles>. + virtual int remove_handler_i (const ACE_Handle_Set &handles, + ACE_Reactor_Mask); + + /// Wait for events to occur. + virtual int wait_for_multiple_events (ACE_Select_Reactor_Handle_Set &, + ACE_Time_Value *); + +private: + /// This method ensures there's an Fl timeout for the first timeout + /// in the Reactor's Timer_Queue. + void reset_timeout (void); + + // = Integrate with the FL callback function mechanism. + static void fl_io_proc (int fd, void*); + static void fl_timeout_proc (void*); + + /// Deny access since member-wise won't work... + ACE_FlReactor (const ACE_FlReactor &); + ACE_FlReactor &operator = (const ACE_FlReactor &); +}; + +ACE_END_VERSIONED_NAMESPACE_DECL + +#include /**/ "ace/post.h" +#endif /* ACE_FLREACTOR_H */ |