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// Timer.hh for FbTk - Fluxbox Toolkit
// Copyright (c) 2002-2003 Henrik Kinnunen (fluxgen at fluxbox dot org)
//
// Timer.hh for Blackbox - An X11 Window Manager
// Copyright (c) 1997 - 2000 Brad Hughes (bhughes at tcac.net)
//
// 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.
#ifndef FBTK_TIMER_HH
#define FBTK_TIMER_HH
#include "RefCount.hh"
#include "Command.hh"
#ifdef HAVE_CTIME
#include <ctime>
#else
#include <time.h>
#endif
#include <list>
#include <string>
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif //HAVE_CONFIG_H
#ifdef HAVE_INTTYPES_H
#include <inttypes.h>
#endif // HAVE_INTTYPES_H
#include <sys/types.h>
#include <sys/time.h>
#include <unistd.h>
namespace FbTk {
/**
Handles Timeout
*/
class Timer {
public:
Timer();
explicit Timer(const RefCount<Slot<void> > &handler);
virtual ~Timer();
void fireOnce(bool once) { m_once = once; }
/// set timeout
void setTimeout(time_t val);
/// set timeout
void setTimeout(const timeval &val);
void setTimeout(unsigned int secs, unsigned int usecs);
void setCommand(const RefCount<Slot<void> > &cmd);
template<typename Functor>
void setFunctor(const Functor &functor)
{ setCommand(RefCount<Slot<void> >(new SlotImpl<Functor, void>(functor))); }
void setInterval(int val) { m_interval = val; }
/// start timing
void start();
/// stop timing
void stop();
/// update all timers
static void updateTimers(int file_descriptor);
int isTiming() const { return m_timing; }
int getInterval() const { return m_interval; }
int doOnce() const { return m_once; }
const timeval &getTimeout() const { return m_timeout; }
const timeval &getStartTime() const { return m_start; }
void makeEndTime(timeval &tm) const;
protected:
/// force a timeout
void fireTimeout();
private:
/// add a timer to the static list
static void addTimer(Timer *timer);
/// remove a timer from the static list
static void removeTimer(Timer *timer);
typedef std::list<Timer *> TimerList;
static TimerList m_timerlist; ///< list of all timers, sorted by next trigger time (start + timeout)
RefCount<Slot<void> > m_handler; ///< what to do on a timeout
bool m_timing; ///< clock running?
bool m_once; ///< do timeout only once?
int m_interval; ///< Is an interval-only timer (e.g. clock)
// note that intervals only take note of the seconds, not microseconds
timeval m_start; ///< start time
timeval m_timeout; ///< time length
};
/// executes a command after a specified timeout
class DelayedCmd: public Command<void> {
public:
DelayedCmd(const RefCount<Slot<void> > &cmd, unsigned int timeout = 200000);
// this constructor has inverted order of parameters to avoid ambiguity with the previous
// constructor
template<typename Functor>
DelayedCmd(unsigned int timeout, const Functor &functor) {
initTimer(timeout);
m_timer.setFunctor(functor);
}
void execute();
static Command<void> *parse(const std::string &command,
const std::string &args, bool trusted);
private:
void initTimer(unsigned int timeout);
Timer m_timer;
};
} // end namespace FbTk
#endif // FBTK_TIMER_HH
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