117 lines
2.8 KiB
C++
117 lines
2.8 KiB
C++
#ifndef HV_EVENT_LOOP_THREAD_HPP_
|
|
#define HV_EVENT_LOOP_THREAD_HPP_
|
|
|
|
#include <thread>
|
|
|
|
#include "hlog.h"
|
|
|
|
#include "EventLoop.h"
|
|
|
|
namespace hv {
|
|
|
|
class EventLoopThread : public Status {
|
|
public:
|
|
// Return 0 means OK, other failed.
|
|
typedef std::function<int()> Functor;
|
|
|
|
EventLoopThread(EventLoopPtr loop = NULL) {
|
|
setStatus(kInitializing);
|
|
loop_ = loop ? loop : std::make_shared<EventLoop>();
|
|
setStatus(kInitialized);
|
|
}
|
|
|
|
~EventLoopThread() {
|
|
stop();
|
|
join();
|
|
}
|
|
|
|
const EventLoopPtr& loop() {
|
|
return loop_;
|
|
}
|
|
|
|
hloop_t* hloop() {
|
|
return loop_->loop();
|
|
}
|
|
|
|
bool isRunning() {
|
|
return loop_->isRunning();
|
|
}
|
|
|
|
// @param wait_thread_started: if ture this method will block until loop_thread started.
|
|
// @param pre: This functor will be executed when loop_thread started.
|
|
// @param post:This Functor will be executed when loop_thread stopped.
|
|
void start(bool wait_thread_started = true,
|
|
Functor pre = Functor(),
|
|
Functor post = Functor()) {
|
|
if (status() >= kStarting && status() < kStopped) return;
|
|
if (isRunning()) return;
|
|
setStatus(kStarting);
|
|
|
|
thread_ = std::make_shared<std::thread>(&EventLoopThread::loop_thread, this, pre, post);
|
|
|
|
if (wait_thread_started) {
|
|
while (loop_->status() < kRunning) {
|
|
hv_delay(1);
|
|
}
|
|
}
|
|
}
|
|
|
|
// @param wait_thread_started: if ture this method will block until loop_thread stopped.
|
|
// stop thread-safe
|
|
void stop(bool wait_thread_stopped = false) {
|
|
if (status() < kStarting || status() >= kStopping) return;
|
|
setStatus(kStopping);
|
|
|
|
long loop_tid = loop_->tid();
|
|
loop_->stop();
|
|
|
|
if (wait_thread_stopped) {
|
|
if (hv_gettid() == loop_tid) return;
|
|
join();
|
|
}
|
|
}
|
|
|
|
// @brief join loop_thread
|
|
// @note destructor will join loop_thread if you forget to call this method.
|
|
void join() {
|
|
if (thread_ && thread_->joinable()) {
|
|
thread_->join();
|
|
thread_ = NULL;
|
|
}
|
|
}
|
|
|
|
private:
|
|
void loop_thread(const Functor& pre, const Functor& post) {
|
|
hlogi("EventLoopThread started, tid=%ld", hv_gettid());
|
|
setStatus(kStarted);
|
|
|
|
if (pre) {
|
|
loop_->queueInLoop([this, pre]{
|
|
if (pre() != 0) {
|
|
loop_->stop();
|
|
}
|
|
});
|
|
}
|
|
|
|
loop_->run();
|
|
assert(loop_->isStopped());
|
|
|
|
if (post) {
|
|
post();
|
|
}
|
|
|
|
setStatus(kStopped);
|
|
hlogi("EventLoopThread stopped, tid=%ld", hv_gettid());
|
|
}
|
|
|
|
private:
|
|
EventLoopPtr loop_;
|
|
std::shared_ptr<std::thread> thread_;
|
|
};
|
|
|
|
typedef std::shared_ptr<EventLoopThread> EventLoopThreadPtr;
|
|
|
|
}
|
|
|
|
#endif // HV_EVENT_LOOP_THREAD_HPP_
|