void f()
{
typedef std::chrono::system_clock Clock;
typedef std::chrono::milliseconds milliseconds;
L1 lk(m0);
assert(test2 == 0);
test1 = 1;
cv.notify_one();
Clock::time_point t0 = Clock::now();
while (test2 == 0 &&
cv.wait_for(lk, milliseconds(250)) == std::cv_status::no_timeout)
;
Clock::time_point t1 = Clock::now();
if (runs == 0)
{
assert(t1 - t0 < milliseconds(250));
assert(test2 != 0);
}
else
{
assert(t1 - t0 - milliseconds(250) < milliseconds(5));
assert(test2 == 0);
}
++runs;
}
int main()
{
{
L1 lk(m0);
std::thread t(f);
assert(test1 == 0);
while (test1 == 0)
cv.wait(lk);
assert(test1 != 0);
test2 = 1;
lk.unlock();
cv.notify_one();
t.join();
}
test1 = 0;
test2 = 0;
{
L1 lk(m0);
std::thread t(f);
assert(test1 == 0);
while (test1 == 0)
cv.wait(lk);
assert(test1 != 0);
lk.unlock();
t.join();
}
}
void f()
{
L1 lk(m0);
assert(test2 == 0);
test1 = 1;
cv.notify_one();
cv.wait(lk, Pred(test2));
assert(test2 != 0);
}
void unlock() {
if ( --counter == 0 ) {
cv.notify_all();
} else {
std::unique_lock<sync_object_type> barrier_lock(sync);
while(counter != 0)
cv.wait_for(barrier_lock, std::chrono::milliseconds(1));
}
}
//---------------------------------------------------------------------------
// function : unlock_write
/// @brief this function unlock the write operation
//---------------------------------------------------------------------------
void unlock_write( void)
{ //-------------------------- begin --------------------
std::unique_lock <spinlock> UL ( spl);
assert ( tid == this_id() and nwrite > 0) ;
nwrite -- ;
if ( nwrite == 0 )
{ cv_write.notify_all() ;
cv_read.notify_all() ;
};
};
void signals()
{
std::this_thread::sleep_for(std::chrono::milliseconds(120));
std::cerr << "Notifying...\n";
cv.notify_all();
std::this_thread::sleep_for(std::chrono::milliseconds(100));
i = 1;
std::cerr << "Notifying again...\n";
cv.notify_all();
}
void insert(T t) {
std::unique_lock<M> lock{mutex};
producers.wait(lock, [this]() { return begin != (end + 1) % SIZE; });
buffer[end] = t;
end = (end + 1) % SIZE;
consumers.notify_all();
}
T extract() {
std::unique_lock<M> lock{mutex};
consumers.wait(lock, [this]() { return begin != end; });
T t = buffer[begin];
begin = (begin + 1) % SIZE;
producers.notify_all();
return t;
}
void _process(int id) {
std::unique_lock<std::mutex> lock(io_datas[id]->mtx);
if(io_datas[id]->empty()) {
io_datas[id]->cond.wait(lock);
/* In case that the queue is not used at the begining and it shall
* make dequeue operation failed. */
if(io_datas[id]->empty()) {
lock.unlock();
return;
}
}
IoRef io = io_datas[id]->dequeue();
lock.unlock();
auto time_beg = std::chrono::steady_clock::now();
handle_io(io->offset, io->c);
auto time_end = std::chrono::steady_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(time_end - time_beg).count();
io_counter_per_thread[id]++;
perf.consumed_time += duration;
perf.io_finished++;
prod_cond.notify_one();
}
// 接続時に呼び出されるイベントリスナ
void on_open() {
std::cout << "接続しました。" << std::endl;
std::unique_lock<std::mutex> lock(sio_mutex);
is_connected = true;
// 接続処理が終わったのち、待っているメインスレッドを起こす
sio_cond.notify_all();
}
void waits()
{
std::unique_lock<std::mutex> lk(cv_m);
std::cout << "Waiting... \n";
cv.wait(lk, []{return i == 1;});
std::cout << "...finished waiting. i == 1\n";
}
void post()
{
std::lock_guard<std::mutex> lock(mutex_);
//++count_;
work_waiting = true;
condition_.notify_one();
}
/*处理函数*/
void ThreadPool::process()
{
while(running)
{
try{
threadMtx.lock();
cond_var.wait(threadMtx);
threadMtx.unlock();
Message message=msgQueue.pop(); //从消息队列获得消息
int socket=message.getFd();
//获取消息长度
uint32 size=0;
Recv(socket,&size,sizeof(size),0);
//获取消息内容
char *buffer=new char[size];
Recv(socket,buffer,size,MSG_WAITALL);
//设置消息内容
message.setContent(buffer,size);
delete[] buffer;
parse(message); //交给parse解析
rmWork();
}
catch(Exception &error)
{
error.exit();
}
}
}
//---------------------------------------------------------------------------
// function : unlock_read
/// @brief This function unlock the read operation
//---------------------------------------------------------------------------
void unlock_read ( void)
{ //-------------------------- begin --------------------
std::unique_lock <spinlock> UL ( spl);
assert ( nread > 0 );
nread--;
if ( nread == 0 ) cv_no_readers.notify_all() ;
};
void on_connected()
{
_lock.lock();
_cond.notify_all();
connect_finish = true;
_lock.unlock();
}
void waits(int idx)
{
std::unique_lock<std::mutex> lk(cv_m);
if(cv.wait_for(lk, std::chrono::milliseconds(idx*100), [](){return i == 1;}))
std::cerr << "Thread " << idx << " finished waiting. i == " << i << '\n';
else
std::cerr << "Thread " << idx << " timed out. i == " << i << '\n';
}
void ComeToWork()
{
std::cout << "Hey security, please open the door!\n";
g_Bell.notify_one();
std::mutex mutex;
mutex.lock();
g_Door.wait(mutex);
mutex.unlock();
}
void wait()
{
std::unique_lock<std::mutex> lock(mutex_);
//while(!count_)
while(!work_waiting)
condition_.wait(lock);
work_waiting = false;
//--count_;
}
void signals()
{
std::this_thread::sleep_for(std::chrono::seconds(1));
{
std::lock_guard<std::mutex> lk(cv_m);
std::cout << "Notifying...\n";
}
cv.notify_all();
std::this_thread::sleep_for(std::chrono::seconds(1));
{
std::lock_guard<std::mutex> lk(cv_m);
i = 1;
std::cout << "Notifying again...\n";
}
cv.notify_all();
}
//---------------------------------------------------------------------------
// function : wait_no_readers
/// @brief This function wait until the number of readers over the data
/// structure is 0
//---------------------------------------------------------------------------
void wait_no_readers ()
{
struct shuttle
{ rw_mutex_data &r ;
shuttle ( rw_mutex_data & Alfa):r(Alfa){ };
bool operator( )( void) { return (r.no_readers() );};
} S ( *this);
cv_no_readers.wait ( mtx_no_readers,S );
};
void f1()
{
L1 lk(m0);
assert(test1 == 0);
while (test1 == 0)
cv.wait(lk);
assert(test1 == 1);
test1 = 2;
}
void set()
{
flag.store(true, std::memory_order_relaxed);
std::lock_guard<std::mutex> lk(set_clear_mutex);
if (thread_cond)
thread_cond->notify_all();
else if (thread_cond_any)
thread_cond_any->notify_all();
}
void f2()
{
L1 lk(m0);
assert(test2 == 0);
while (test2 == 0)
cv.wait(lk);
assert(test2 == 1);
test2 = 2;
}
void Worker::post(const QueryPtr& query)
{
{
std::lock_guard<std::mutex> guard(mutex_);
assert(follower_query_ == nullptr);
follower_query_ = query;
}
cond_.notify_one();
}
/*供messagemanager调用*/
bool ThreadPool::addWork()
{
/*工作线程数加一*/
std::lock_guard<std::mutex> lck(mtx);
if(isFull())
throw Exception(ERR_BAD,"线程池已经用完,无法提供ThreadPool::addWork()调用");
freeThreadNumber--;
cond_var.notify_one();//唤醒一个线程,并从消息队列取消息处理
return true;
}
//---------------------------------------------------------------------------
// function : lock_read
/// @brief This function lock for the read operation. It's atomic
/// @param [in]
/// @return true : locked false : unlocked
//---------------------------------------------------------------------------
void lock_read(void)
{ //--------------------- begin ----------------------------
struct shuttle
{ rw_mutex_data &r ;
shuttle ( rw_mutex_data & Alfa):r(Alfa){ };
bool operator( )( void) { return (r.try_lock_read());};
} S ( *this);
cv_read.wait ( mtx_read,S );
};
void Worker::post_to_queue(const QueryPtr& query)
{
if (!working_) return;
{
std::lock_guard<std::mutex> guard(mutex_);
query_queue_.push_back(query);
}
cond_.notify_one();
}
// Worker thread
void HttpClient::networkThread()
{
auto scheduler = Director::getInstance()->getScheduler();
while (true)
{
HttpRequest *request;
// step 1: send http request if the requestQueue isn't empty
{
std::lock_guard<std::mutex> lock(s_requestQueueMutex);
while (s_requestQueue->empty()) {
s_SleepCondition.wait(s_requestQueueMutex);
}
request = s_requestQueue->at(0);
s_requestQueue->erase(0);
}
if (request == s_requestSentinel) {
break;
}
// step 2: libcurl sync access
// Create a HttpResponse object, the default setting is http access failed
HttpResponse *response = new (std::nothrow) HttpResponse(request);
processResponse(response, s_errorBuffer);
// add response packet into queue
s_responseQueueMutex.lock();
s_responseQueue->pushBack(response);
s_responseQueueMutex.unlock();
if (nullptr != s_pHttpClient) {
scheduler->performFunctionInCocosThread(CC_CALLBACK_0(HttpClient::dispatchResponseCallbacks, this));
}
}
// cleanup: if worker thread received quit signal, clean up un-completed request queue
s_requestQueueMutex.lock();
s_requestQueue->clear();
s_requestQueueMutex.unlock();
if (s_requestQueue != nullptr) {
delete s_requestQueue;
s_requestQueue = nullptr;
delete s_responseQueue;
s_responseQueue = nullptr;
}
}
HttpClient::~HttpClient()
{
if (s_requestQueue != nullptr) {
{
std::lock_guard<std::mutex> lock(s_requestQueueMutex);
s_requestQueue->pushBack(s_requestSentinel);
}
s_SleepCondition.notify_one();
}
s_pHttpClient = nullptr;
}
void enqueue_io(IoRef &&io) {
int id = (io->offset / (OBJECT_SIZE / BLOCK_SIZE)) % concurrence;
std::unique_lock<std::mutex> lock(io_datas[id]->mtx);
lock.unlock();
io_datas[id]->cond.notify_one();
perf.io_started++;
if(perf.get_io_flight() > io_capacity) {
std::unique_lock<std::mutex> prod_lock(prod_mtx);
prod_cond.wait(prod_lock);
}
}
