std::async 是C++11 引入的一个函数模板,用于异步地执行一个函数,并返回一个 std::future 对象,该对象可用于获取函数的执行结果。 2. 参数 std::async 有两个主要的参数形式: std::future<typename std::result_of<F(Args...)>::type> async(F&& f, Args&&... ...
函数模板std::async异步地运行函数f(有可能在可能是线程池一部分的分离线程中),并返回最终将保有该函数调用结果的std::future。 1)表现如同以std::launch::async|std::launch::deferred作为policy调用(2)。 2)按照特定的启动策略policy(见下文),以参数args调用函数f。
std::future<typenamestd::result_of<Function(Args...)>::type> async(Function&&f, Args&&...args); (1)(seit C++11) template<classFunction,class...Args> std::future<typenamestd::result_of<Function(Args...)>::type> async(std::launchpolicy, Function&&f, Args&&...args); ...
The function templatestd::asyncruns the functionfasynchronously (potentially in a separate thread which might be a part of a thread pool) and returns astd::futurethat will eventually hold the result of that function call. 1)Behaves as if(2)is called withpolicybeingstd::launch::async|std::la...
std::async是更高级的用法,基于任务的异步操作,大大简化了异步的操作 async(std::launch::async | std::launch::deferred, func, args...); int add(int in) { return in + 1; } int main() { auto res = std::async(add, 2); cout << res.get() << endl; //阻塞直到函数返回 }随机数 ...
z.so(OHOS::EventFwk::CommonEventManager::SubscribeCommonEvent(std::__1::shared_ptr<OHOS::EventFwk::CommonEventSubscriber> const&)+56) #05 pc 000000000003253c /system/lib64/module/libcommonevent.z.so #06 pc 0000000000019808 /system/lib64/libace_napi.z.so(NativeAsyncWork::AsyncWorkCall...
inlineasync::task<std::unique_ptr<std::string>>return_move_only_async() {co_returnstd::make_unique<std::string>("contents"); }inlineasync::task<void>use_move_only_async() { std::unique_ptr<std::string> text{co_awaitreturn_move_only_async() };printf("%s\n", text->c_str());...
inlineasync::task<std::unique_ptr<std::string>>return_move_only_async() {co_returnstd::make_unique<std::string>("contents"); }inlineasync::task<void>use_move_only_async() { std::unique_ptr<std::string> text{co_awaitreturn_move_only_async() };printf("%s\n", text->c_str());...
std::tie(model, ctx) = llama_init_from_gpt_params(params); // 三种途径加载gguf模型 llama_load_model_from_hf llama_load_model_from_url llama_load_model_from_file llama_model * model = new llama_model; --- 创建模型对象,来承载llama/qwen等模型结构 llama...
task<>tcp_echo_server(){chardata[1024];while(true){std::size_tn=co_await socket.async_read_some(buffer(data));co_await async_write(socket, buffer(data, n));}} co_yield表达式——用于暂停执行并返回一个值: generator<unsignedint>iota(unsignedintn=0){while(true)co_yield n++;} ...