// 工作线程
void work()
{
boost::asio::io_service ios;
boost::asio::deadline_timer c( ios, boost::posix_time::seconds(1) );
c.async_wait( boost::bind( &listener::check_interrupt, boost::ref(c) ) );
boost::asio::ip::tcp::socket* p=new boost::asio::ip::tcp::socket(ios);
_acceptor.async_accept( *p,
boost::bind(&listener::handle_accept, this, p, boost::asio::placeholders::error)
);
io_service_work(ios);
}
void AsioServiceRunner::ServiceThreadProc()
{
LOG4CPLUS_TRACE_METHOD(Loggers::Service(), "AsioServiceRunner::ServiceThreadProc()");
LOG4CPLUS_INFO(Loggers::Service(), "Thread "<<service_name_<<" started.");
assert(io_service_);
while(true)
{
try
{
boost::asio::io_service::work io_service_work(*io_service_);
io_service_->run();
break;
}
catch(...)
{
LOG4CPLUS_ERROR(Loggers::Service(), "An error occurred in "<<service_name_<<" thread. Will retry shortly.");
io_service_->reset();
}
}
}
/// <summary>开始监听端口</summary>
/// <remarks>
/// 本函数会创建 thread_count+1 个线程，一个线程用来监听和接受连接，其他线程处理
/// 网络 IO 操作，所有线程的 io_service 都独立，因此可以保证 IO 的回调都是非并行的。
/// </remarks>
void run( const uint16_t port, int thread_count=1, bool hold=false )
{
boost::asio::ip::tcp::endpoint _endpoint=asio::ip::tcp::endpoint( asio::ip::tcp::v4(), port );
_acceptor.open( _endpoint.protocol() );
_acceptor.set_option(boost::asio::ip::tcp::acceptor::reuse_address(true)); // 允许绑定到同一个端口
_acceptor.bind( _endpoint );
_acceptor.listen( 32 ); // Maybe throw
if( thread_count>0 ){
for( int i=0; i<thread_count; ++i )
_threads.create_thread(boost::bind(&listener::work, this ));
}else{
boost::asio::ip::tcp::socket *p=new boost::asio::ip::tcp::socket(_io_service_acceptor);
_acceptor.async_accept( *p,
boost::bind(&listener::handle_accept, this, p, boost::asio::placeholders::error)
);
}
if( hold )
io_service_work( _io_service_acceptor );
else
_threads.create_thread( boost::bind(&listener::io_service_work, this, boost::ref(_io_service_acceptor) ) );
}
