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/*
* Author: Sven Gothel <sgothel@jausoft.com>
* Copyright (c) 2022 Gothel Software e.K.
*
* 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.
*/
#include <jau/simple_timer.hpp>
using namespace jau;
void simple_timer::timer_work(service_runner& sr_ref) {
if( !sr_ref.shall_stop() ) {
// non-blocking sleep in regards to stop()
std::unique_lock<std::mutex> lock(sr_ref.mtx_shall_stop()); // RAII-style acquire and relinquish via destructor
bool overflow = false;
const fraction_timespec timeout_time = getMonotonicTime() + fraction_timespec(duration, &overflow);
if( overflow ) {
sr_ref.set_shall_stop(); // bail out
}
std::cv_status s { std::cv_status::no_timeout };
while( !sr_ref.shall_stop() && std::cv_status::timeout != s ) {
s = wait_until( sr_ref.cv_shall_stop(), lock, timeout_time );
if( std::cv_status::timeout == s && !sr_ref.shall_stop() ) {
duration = fractions_i64::zero;
}
}
}
Timer_func tf;
{
std::unique_lock<std::mutex> lockReader(mtx_timerfunc); // RAII-style acquire and relinquish via destructor
tf = timer_func;
}
if( !tf.isNullType() && !sr_ref.shall_stop() ) {
duration = tf(*this);
} else {
duration = fractions_i64::zero;
}
if( fractions_i64::zero == duration.load() ) {
sr_ref.set_shall_stop();
}
}
simple_timer::simple_timer(const std::string& name, const fraction_i64& service_shutdown_timeout) noexcept
: timer_service(name, service_shutdown_timeout, jau::bindMemberFunc(this, &simple_timer::timer_work)),
timer_func(), duration()
{}
bool simple_timer::start(const fraction_i64& duration_, Timer_func tofunc) noexcept {
if( is_running() ) {
return false;
}
timer_func = tofunc;
duration = duration_;
timer_service.start();
return true;
}
void simple_timer::start_or_update(const fraction_i64& duration_, Timer_func tofunc) noexcept {
if( is_running() ) {
std::unique_lock<std::mutex> lockReader(mtx_timerfunc); // RAII-style acquire and relinquish via destructor
timer_func = tofunc;
duration = duration_;
} else {
timer_func = tofunc;
duration = duration_;
timer_service.start();
}
}
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