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/* -*- C++ -*- */
// $Id$
// ============================================================================
//
// = LIBRARY
// ace
//
// = FILENAME
// XtReactor.h
//
// = AUTHOR
// Eric C. Newton's <ecn@clark.net> and Douglas C. Schmidt <schmidt@cs.wustl.edu>
//
// ============================================================================
#if !defined (ACE_XTREACTOR_H)
#define ACE_XTREACTOR_H
#include "ace/Reactor.h"
#if defined (ACE_HAS_XT)
#define String XtString
#include /**/ <X11/Intrinsic.h>
#undef String
// Forward decl.
struct ACE_XtReactorID;
class ACE_XtReactor : public ACE_Reactor
// = TITLE
// An object oriented event demultiplexor and event handler
// dispatcher that uses the X Toolkit functions.
//
// = DESCRIPTION
// The ACE_Reactor is an object-oriented event demultiplexor
// and event handler dispatcher. The sources of events that the
// ACE_Reactor waits for and dispatches includes I/O events,
// signals, and timer events.
{
public:
// = Initialization and termination methods.
ACE_XtReactor (XtAppContext context,
size_t size = DEFAULT_SIZE,
int restart = 0,
ACE_Sig_Handler * = 0);
virtual ~ACE_XtReactor (void);
XtAppContext context (void);
// Register timers/handles with Xt.
virtual int attach (ACE_HANDLE handle,
ACE_Event_Handler *handler,
ACE_Reactor_Mask mask);
virtual int detach (ACE_HANDLE handle, ACE_Reactor_Mask mask);
virtual int schedule_timer (ACE_Event_Handler *handler,
const void *arg,
const ACE_Time_Value &delta_time,
const ACE_Time_Value &interval);
virtual int cancel_timer (ACE_Event_Handler *handler);
virtual int cancel_timer (int timer_id, const void **arg);
protected:
virtual int wait_for_multiple_events (ACE_Handle_Set &,
ACE_Handle_Set &,
ACE_Handle_Set &,
ACE_Time_Value *);
virtual int XtWaitForMultipleEvents (int,
ACE_Handle_Set &,
ACE_Handle_Set &,
ACE_Handle_Set &,
ACE_Time_Value *);
ACE_XtReactor (const ACE_Reactor &);
ACE_XtReactor &operator = (const ACE_Reactor &);
XtAppContext context_;
struct ACE_XtReactorID *ids_;
int id_len_;
XtIntervalId timeout_;
private:
void reset_timeout (void);
static void TimerCallbackProc (XtPointer closure, XtIntervalId *id);
static void InputCallbackProc (XtPointer closure, int* source, XtInputId *id);
};
#endif /* ACE_HAS_XT */
#endif /* ACE_XTREACTOR_H */
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