/usr/include/pj++/timer.hpp is in libpjproject-dev 2.1.0.0.ast20130823-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/*
* Copyright (C) 2008-2009 Teluu Inc. (http://www.teluu.com)
* Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
*
* This program 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.
*
* This program 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 __PJPP_TIMER_HPP__
#define __PJPP_TIMER_HPP__
#include <pj/timer.h>
#include <pj++/types.hpp>
#include <pj/assert.h>
#include <pj++/lock.hpp>
class Pj_Timer_Heap;
//////////////////////////////////////////////////////////////////////////////
// Timer entry.
//
// How to use:
// Derive class from Pj_Timer_Entry and override on_timeout().
// Scheduler timer in Pj_Timer_Heap.
//
class Pj_Timer_Entry : public Pj_Object
{
friend class Pj_Timer_Heap;
public:
//
// Default constructor.
//
Pj_Timer_Entry()
{
entry_.user_data = this;
entry_.cb = &timer_heap_callback;
}
//
// Destructor, do nothing.
//
~Pj_Timer_Entry()
{
}
//
// Override this to get the timeout notification.
//
virtual void on_timeout(int id) = 0;
private:
pj_timer_entry entry_;
static void timer_heap_callback(pj_timer_heap_t*, pj_timer_entry *e)
{
Pj_Timer_Entry *entry = (Pj_Timer_Entry*) e->user_data;
entry->on_timeout(e->id);
}
};
//////////////////////////////////////////////////////////////////////////////
// Timer heap.
//
class Pj_Timer_Heap : public Pj_Object
{
public:
//
// Default constructor.
//
Pj_Timer_Heap()
: ht_(NULL)
{
}
//
// Construct timer heap.
//
Pj_Timer_Heap(Pj_Pool *pool, pj_size_t initial_count)
: ht_(NULL)
{
create(pool, initial_count);
}
//
// Destructor.
//
~Pj_Timer_Heap()
{
destroy();
}
//
// Create
//
pj_status_t create(Pj_Pool *pool, pj_size_t initial_count)
{
destroy();
return pj_timer_heap_create(pool->pool_(), initial_count, &ht_);
}
//
// Destroy
//
void destroy()
{
if (ht_) {
pj_timer_heap_destroy(ht_);
ht_ = NULL;
}
}
//
// Get pjlib compatible timer heap object.
//
pj_timer_heap_t *get_timer_heap()
{
return ht_;
}
//
// Set the lock object.
//
void set_lock( Pj_Lock *lock, bool auto_delete )
{
pj_timer_heap_set_lock( ht_, lock->pj_lock_t_(), auto_delete);
}
//
// Set maximum number of timed out entries to be processed per poll.
//
unsigned set_max_timed_out_per_poll(unsigned count)
{
return pj_timer_heap_set_max_timed_out_per_poll(ht_, count);
}
//
// Schedule a timer.
//
bool schedule( Pj_Timer_Entry *ent, const Pj_Time_Val &delay,
int id)
{
ent->entry_.id = id;
return pj_timer_heap_schedule(ht_, &ent->entry_, &delay) == 0;
}
//
// Cancel a timer.
//
bool cancel(Pj_Timer_Entry *ent)
{
return pj_timer_heap_cancel(ht_, &ent->entry_) == 1;
}
//
// Get current number of timers
//
pj_size_t count()
{
return pj_timer_heap_count(ht_);
}
//
// Get the earliest time.
// Return false if no timer is found.
//
bool earliest_time(Pj_Time_Val *t)
{
return pj_timer_heap_earliest_time(ht_, t) == PJ_SUCCESS;
}
//
// Poll the timer.
// Return number of timed out entries has been called.
//
unsigned poll(Pj_Time_Val *next_delay = NULL)
{
return pj_timer_heap_poll(ht_, next_delay);
}
private:
pj_timer_heap_t *ht_;
};
#endif /* __PJPP_TIMER_HPP__ */
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