C++如何在向量中插入JToG?
发布时间:2022-09-10 11:43:50 636
相关标签: # golang
我正试着和新员工一起工作jthreads
想把它们添加到std::vector
这样我就可以轻松地一次阻止所有这些。
以下代码无法使用Visual Studio 2022编译:错误C2893:未能专门化函数模板的未知类型std::invoke(_Callable &&)noexcept()'
std::vector thread_handles;
thread_handles.emplace_back(std::make_shared
(std::bind(&PrinterServer::RunInThread,
&printer_server, std::placeholders::_1)));
std::ranges::for_each(thread_handles.begin(),
thread_handles.end(),
[](std::jthread& thread_handle)
{
thread_handle.request_stop();
});
std::ranges::for_each(thread_handles.begin(),
thread_handles.end(),
[](std::jthread& thread_handle)
{
thread_handle.join();
});
下面是我使用单个jthread时生成的完整示例:
#include
#include
#include
#include
#include
class PrinterServer
{
std::string m_Name;
bool m_Quit = false;
public:
explicit PrinterServer(std::string name) : m_Name(std::move(name))
{
}
void RunInThread(const std::stop_token interrupt)
{
using namespace std::chrono_literals;
printf("\n%s> Started!\n", m_Name.c_str());
// Register a interrupt callback
std::stop_callback cb(interrupt, [&]() { m_Quit = true; });
// Main loop waiting to process requests until we are asked to stop
while (!m_Quit)
{
// Do something...
std::this_thread::sleep_for(500ms);
}
printf("\n%s> Terminate!\n", m_Name.c_str());
}
};
int main()
{
PrinterServer printer_server("MAIN PRINTER");
#if 1
// OK I can request a single jthread to stop
auto printer_server_thread_handle = std::jthread(printer_server);
printer_server_thread_handle.request_stop();
printer_server_thread_handle.join();
#else
// On VS2022 14.30.30705
// Error C2893: Failed to specialize function template 'unknown-type std::invoke(_Callable &&) noexcept()'
std::vector thread_handles;
// std::vector<std::make_shared> thread_handles;
thread_handles.emplace_back(std::make_shared(std::bind(&PrinterServer::RunInThread, &printer_server, std::placeholders::_1)));
std::ranges::for_each(thread_handles.begin(), thread_handles.end(), [](std::jthread& thread_handle)
{
thread_handle.request_stop();
});
std::ranges::for_each(thread_handles.begin(), thread_handles.end(), [](std::jthread& thread_handle)
{
thread_handle.join();
});
#endif
return 0;
}
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