mirror of https://github.com/sipwise/sems.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
142 lines
3.0 KiB
142 lines
3.0 KiB
/*
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2007 Raphael Coeffic
|
|
*
|
|
* This file is part of sems, a free SIP media server.
|
|
*
|
|
* sems is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version
|
|
*
|
|
* For a license to use the ser software under conditions
|
|
* other than those described here, or to purchase support for this
|
|
* software, please contact iptel.org by e-mail at the following addresses:
|
|
* info@iptel.org
|
|
*
|
|
* sems is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef _wheeltimer_h_
|
|
#define _wheeltimer_h_
|
|
|
|
#include "AmThread.h"
|
|
|
|
#include <queue>
|
|
|
|
#define BITS_PER_WHEEL 8
|
|
#define ELMTS_PER_WHEEL (1 << BITS_PER_WHEEL)
|
|
|
|
// 20 ms == 20000 us
|
|
#define TIMER_RESOLUTION 20000
|
|
|
|
// do not change
|
|
#define WHEELS 4
|
|
|
|
struct timer;
|
|
typedef void (*timer_cb)(timer*,unsigned int /*data1*/,void* /*data2*/);
|
|
|
|
class base_timer
|
|
{
|
|
public:
|
|
base_timer* next;
|
|
|
|
base_timer():next(0) {}
|
|
virtual ~base_timer() {}
|
|
};
|
|
|
|
class timer: public base_timer
|
|
{
|
|
public:
|
|
base_timer* prev;
|
|
u_int32_t expires;
|
|
|
|
unsigned int type;
|
|
timer_cb cb;
|
|
unsigned int data1;
|
|
void* data2;
|
|
|
|
|
|
timer()
|
|
: base_timer(),type(0),
|
|
prev(0), expires(0),cb(0),
|
|
data1(0),data2(0)
|
|
{}
|
|
|
|
timer(unsigned int timer_type, unsigned int expires, timer_cb cb, int data1, void* data2)
|
|
: base_timer(),type(timer_type),
|
|
prev(0), expires(expires), cb(cb),
|
|
data1(data1),data2(data2)
|
|
{}
|
|
|
|
~timer();
|
|
|
|
};
|
|
|
|
|
|
class wheeltimer: public AmThread
|
|
{
|
|
static wheeltimer* _instance;
|
|
|
|
//the timer wheel
|
|
base_timer wheels[WHEELS][ELMTS_PER_WHEEL];
|
|
|
|
//list with timer insertions requests
|
|
std::queue<timer*> utimer_add;
|
|
AmMutex utimer_add_m;
|
|
|
|
//list with timer deletions requests
|
|
std::queue<timer*> utimer_rem;
|
|
AmMutex utimer_rem_m;
|
|
|
|
//list with expired timers
|
|
base_timer utimer_expired;
|
|
|
|
wheeltimer();
|
|
~wheeltimer();
|
|
|
|
void turn_wheel();
|
|
void update_wheel(int wheel);
|
|
|
|
void place_timer(timer* t);
|
|
void place_timer(timer* t, int wheel);
|
|
|
|
void add_timer_to_wheel(timer* t, int wheel, unsigned int pos);
|
|
void delete_timer(timer* t);
|
|
|
|
void process_current_timers();
|
|
|
|
protected:
|
|
void run();
|
|
void on_stop(){}
|
|
|
|
public:
|
|
|
|
static wheeltimer* instance();
|
|
|
|
//clock reference
|
|
volatile u_int32_t wall_clock; // 32 bits
|
|
|
|
void clock_work();
|
|
void insert_timer(timer* t);
|
|
void remove_timer(timer* t);
|
|
};
|
|
|
|
|
|
#endif
|
|
|
|
/** EMACS **
|
|
* Local variables:
|
|
* mode: c++
|
|
* c-basic-offset: 4
|
|
* End:
|
|
*/
|