mirror of https://github.com/pvnis/srsRAN_4G.git
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
125 lines
3.2 KiB
C++
125 lines
3.2 KiB
C++
/**
|
|
* Copyright 2013-2023 Software Radio Systems Limited
|
|
*
|
|
* This file is part of srsRAN.
|
|
*
|
|
* srsRAN is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as
|
|
* published by the Free Software Foundation, either version 3 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* srsRAN 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 Affero General Public License for more details.
|
|
*
|
|
* A copy of the GNU Affero General Public License can be found in
|
|
* the LICENSE file in the top-level directory of this distribution
|
|
* and at http://www.gnu.org/licenses/.
|
|
*
|
|
*/
|
|
|
|
/******************************************************************************
|
|
* File: timeout.h
|
|
* Description: Millisecond resolution timeouts. Uses a dedicated thread to
|
|
* call an optional callback function upon timeout expiry.
|
|
* Reference:
|
|
*****************************************************************************/
|
|
|
|
#ifndef SRSRAN_TIMEOUT_H
|
|
#define SRSRAN_TIMEOUT_H
|
|
|
|
#include "srsran/phy/utils/debug.h"
|
|
#include <pthread.h>
|
|
#include <stdint.h>
|
|
#include <sys/time.h>
|
|
#include <unistd.h>
|
|
|
|
namespace srsran {
|
|
|
|
class timeout_callback
|
|
{
|
|
public:
|
|
virtual void timeout_expired(uint32_t timeout_id) = 0;
|
|
};
|
|
|
|
class timeout
|
|
{
|
|
public:
|
|
timeout() : running(false), callback(NULL), thread(0), timeout_id(0) {}
|
|
~timeout()
|
|
{
|
|
if (running && callback)
|
|
pthread_join(thread, NULL);
|
|
}
|
|
void start(int duration_msec_, uint32_t timeout_id_ = 0, timeout_callback* callback_ = NULL)
|
|
{
|
|
if (duration_msec_ < 0)
|
|
return;
|
|
reset();
|
|
gettimeofday(&start_time[1], NULL);
|
|
duration_msec = duration_msec_;
|
|
running = true;
|
|
timeout_id = timeout_id_;
|
|
callback = callback_;
|
|
if (callback)
|
|
pthread_create(&thread, NULL, &thread_start, this);
|
|
}
|
|
void reset()
|
|
{
|
|
if (callback)
|
|
pthread_cancel(thread);
|
|
running = false;
|
|
}
|
|
static void* thread_start(void* t_)
|
|
{
|
|
timeout* t = (timeout*)t_;
|
|
t->thread_func();
|
|
return NULL;
|
|
}
|
|
void thread_func()
|
|
{
|
|
// substract time elapsed until now from timer duration
|
|
gettimeofday(&start_time[2], NULL);
|
|
get_time_interval(start_time);
|
|
|
|
int32_t usec = duration_msec * 1000 - start_time[0].tv_usec;
|
|
if (usec > 0)
|
|
usleep(usec);
|
|
if (callback && running)
|
|
callback->timeout_expired(timeout_id);
|
|
}
|
|
bool expired()
|
|
{
|
|
if (running) {
|
|
gettimeofday(&start_time[2], NULL);
|
|
get_time_interval(start_time);
|
|
return start_time[0].tv_usec > duration_msec * 1000;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
int32_t get_msec_to_expire()
|
|
{
|
|
if (running) {
|
|
gettimeofday(&start_time[2], NULL);
|
|
get_time_interval(start_time);
|
|
return (duration_msec * 1000 - start_time[0].tv_usec) / 1000;
|
|
}
|
|
return 0;
|
|
}
|
|
bool is_running() { return running; }
|
|
|
|
private:
|
|
struct timeval start_time[3];
|
|
pthread_t thread;
|
|
uint32_t timeout_id;
|
|
timeout_callback* callback;
|
|
bool running;
|
|
int duration_msec;
|
|
};
|
|
|
|
} // namespace srsran
|
|
|
|
#endif // SRSRAN_TIMEOUT_H
|