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added watchdog to restart librespot

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badaix 2016-11-04 10:30:20 +01:00
parent 5dc3a9c0b1
commit 46b794498e
5 changed files with 172 additions and 3 deletions
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83
server/streamreader/watchdog.cpp Normal file
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/***
This file is part of snapcast
Copyright (C) 2014-2016 Johannes Pohl
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 3 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, see <http://www.gnu.org/licenses/>.
***/
#include "watchdog.h"
#include <chrono>
using namespace std;
Watchdog::Watchdog(WatchdogListener* listener) : listener_(listener), thread_(nullptr), active_(false)
{
}
Watchdog::~Watchdog()
{
stop();
}
void Watchdog::start(size_t timeoutMs)
{
timeoutMs_ = timeoutMs;
if (!thread_ || !active_)
{
active_ = true;
thread_.reset(new thread(&Watchdog::worker, this));
}
else
trigger();
}
void Watchdog::stop()
{
active_ = false;
trigger();
if (thread_ && thread_->joinable())
thread_->join();
thread_ = nullptr;
}
void Watchdog::trigger()
{
std::unique_lock<std::mutex> lck(mtx_);
cv_.notify_one();
}
void Watchdog::worker()
{
while (active_)
{
std::unique_lock<std::mutex> lck(mtx_);
if (cv_.wait_for(lck, std::chrono::milliseconds(timeoutMs_)) == std::cv_status::timeout)
{
if (listener_)
{
listener_->onTimeout(this, timeoutMs_);
break;
}
}
}
active_ = false;
}