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/* -*- 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/Select_Reactor.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#if defined (ACE_HAS_FL)
/**
* @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_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 *handler,
const void *arg,
const ACE_Time_Value &delta_time,
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 &);
};
#if defined(__ACE_INLINE__)
#include "ace/FlReactor.i"
#endif /* __ACE_INLINE__ */
#endif /* ACE_HAS_FL */
#include "ace/post.h"
#endif /* ACE_FLREACTOR_H */
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