通过使用 strand, 我们对上面的代码稍作调整, 变为下面的实现: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 asio::io_context ctx{}; auto wg = asio::make_work_guard(ctx); std::thread tmp_thread([&ctx] { ctx.run(); }); std::thread tmp_thread1([&ctx] { ctx.run(); }); st...
then they may be running concurrently. To protect the// socket, use the strand.strand_.post(&read);strand_.post(&write);}// read always needs to be posted through the strand because it invokes a// non-composed operation on the socket.voidread(){// async_receive is initiated...
Lock和ReentrantLock： 与内置加锁机制(synchronized)不同的是，Lock提供到了一种无条件的、可轮询的、定...
创建Strand:当创建一个 Strand 时,需要传入 io_context 的执行器。Strand 会使用这个执行器来调度其内部的处理程序。 boost::asio::io_context io_context; boost::asio::strand<boost::asio::io_context::executor_type> strand(io_context.get_executor()); 绑定处理程序:将处理程序绑定到 Strand 上时,实...
();}}voidno_strand(){io_context io_ctx;// auto strand = asio::make_strand(io_ctx);for(inti=0;i<100;++i){asio::post(io_ctx,[](){cout<<gettid()<<"]"<<1<<2<<3<<4<<5<<6<<7<<8<<9<<endl;});}vector<std::thread>ths;for(inti=0;i<100;++i){ths.emplace_back([i...
// strand提供串行执行, 能够保证线程安全, 同时被post或dispatch的方法, 不会被并发的执行. // io_service不能保证线程安全 boost::asio::io_service m_service; boost::asio::strand m_strand(m_service); boost::mutex m_mutex; void print(int id) { // boost::mutex::scoped_lock lock...
boost asio:如何正确封装strand问题描述 投票:0回答:1我想要的设计看起来相当基本: struct my_object { explicit my_object(io_context& ctx) : strand{make_strand(ctx)} { socket = make_unique<some_socket_like_object>(*strand); } void my_api() { // Various async operations are launched ...
Strand 类 最后,来实现Strand类吧。 classStrandImpl:publicstd::enable_shared_from_this<StrandImpl>{public:explicitStrandImpl(Executor&e):exe_(e){}public:structProcessHandler{explicitProcessHandler(std::shared_ptr<StrandImpl>s):impl(s){}voidoperator()(){impl->Trigger();}std::shared_ptr<StrandIm...
explicitprinter(boost::asio::io_context &io):strand_(boost::asio::make_strand(io)),timer1_(io, boost::asio::chrono::seconds(1)),timer2_(io, boost::asio::chrono::seconds(1)),count_(0){// 当启动异步操作时,每个回调函数都“绑定”到 boost::asio::strand 对象。// boost::asio::...
(f), ex); } asio::awaitable<void> f(auto strand) { out("Main"); co_await async_run_on([](){ out("Strand"); }, strand, asio::deferred); out("Main again"); } int main() { asio::io_context io; asio::thread_pool tp(1); co_spawn(io, f(make_strand(tp)), asio::...