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looper.cpp
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looper.cpp
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#include "Looper.h"
#include "dlog.h"
#include "timeutil.h"
namespace LQF
{
void* Looper::trampoline()
{
LogInfo("at Looper trampoline");
loop();
return NULL;
}
Looper::Looper() {
head_data_available_ = new Semaphore(0);
}
Looper::~Looper()
{
if (running_)
{
LogInfo("Looper deleted while still running. Some messages will not be processed");
Stop();
}
}
void Looper::start()
{
LogInfo("at Looper create");
if(false) {
worker_ = new std::thread(trampoline, this);
} else {
loop();
}
running_ = true;
}
//
void Looper::Post(int what, MsgBaseObj *data, bool flush)
{
LooperMessage *msg = new LooperMessage();
msg->what = what;
msg->obj = data;
msg->quit = false;
addmsg(msg, flush);
}
void Looper::addmsg(LooperMessage *msg, bool flush)
{
// 获取锁,发数据
int64_t t1 = TimesUtil::GetTimeMillisecond();
queue_mutex_.lock();
if (flush) {
msg_queue_.clear();
}
msg_queue_.push_back(msg);
queue_mutex_.unlock();
// 发送数据进行通知
LogDebug("post msg %d, size:%d", msg->what, msg_queue_.size());
head_data_available_->post();
// LogInfo("Looper post");
int64_t t2 = TimesUtil::GetTimeMillisecond();
if(t2 - t1 >10)
{
LogWarn("t2 - t1 = %ld", t2-t1);
}
}
void Looper::loop()
{
LogInfo("into loop");
LooperMessage *msg;
while(true)
{
queue_mutex_.lock();
if(msg_queue_.size() > 0)
{
msg = msg_queue_.front();
msg_queue_.pop_front();
queue_mutex_.unlock();
//quit 退出
if (msg->quit)
{
break;
}
LogDebug("processing msg %d", msg->what);
handle(msg->what, msg->obj);
delete msg;
}
else
{
queue_mutex_.unlock();
// LogInfo("no msg");
head_data_available_->wait();
LogDebug("wait get msg:%d", msg_queue_.size());
continue;
}
// std::this_thread::sleep_for(std::chrono::milliseconds(5));
}
delete msg->obj;
delete msg;
while(msg_queue_.size() > 0)
{
msg = msg_queue_.front();
msg_queue_.pop_front();
delete msg->obj;
delete msg;
}
}
void Looper::Stop()
{
if(running_)
{
LogInfo("Stop");
LooperMessage *msg = new LooperMessage();
msg->what = 0;
msg->obj = NULL;
msg->quit = true;
addmsg(msg, true);
if(worker_)
{
worker_->join();
delete worker_;
worker_ = NULL;
}
if(head_data_available_)
delete head_data_available_;
running_ = false;
}
}
void Looper::handle(int what, MsgBaseObj* obj)
{
LogInfo("dropping msg %d %p", what, obj);
}
}