boost-asio

I am using Clion, which uses MinGW and Cmake. When I try to use the standalone asio library I am getting undefined reference to `WSAStartup@8' undefined reference to `WSASetLastError@4' undefined reference to `closesocket@4' ... I believe I have to link the C:/Windows/System32/ws2_32.dll library. I tried adding something like -L C:/Windows/System32 -lws2_32 : set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${GCC_COVERAGE_LINK_FLAGS} -static -lws2_32") But that didn't help. How can I fix these errors ? The following CMakeLists.txt compiled error-less. Only 1 line is really required: link

I have a multithread application which uses boost::asio and boost::coroutine via its integration in boost::asio . Every thread has its own io_service object. The only shared state between threads are connection pools which are locked with mutex when connection is get or returned from/to the connection pool. When there is not enough connections in the pool I push infinite asio::steady_tiemer in internal structure of the pool and asynchronously waiting on it and I yielding from the couroutine function. When other thread returns connection to the pool it checks whether there is waiting timers, it

What I know... I need to call set_option(tcp::no_delay(true)) before connect() according to https://stackoverflow.com/a/25871250 or it will have no effect. Furthermore, set_option() works only if the socket was opened beforehand according to https://stackoverflow.com/a/12845502 . However, the documentation for async_connect() states that the passed socket will be closed if it is open before handling the connection setup (see async_connect() ). Which means that the approach I chose does not set NO_DELAY correctly (I have tested this on Windows 7 x64 so I can say for sure). if ( socket.is_open()

I am trying to mix boost signals with asio to do a dispatch based handler invocation. when the post method is invoked from a thread the io_service::run exits immediately, the callback handled to post is never invoked, callback is a C++11 lambda routine. I am pasting the code for more analysis. #include<iostream> #include<thread> #include<boost/signals2/signal.hpp> #include<boost/asio.hpp> static boost::asio::io_service svc; static boost::signals2::signal<void(std::string)> textEntered; static void handleInputText(std::string text) { std::cout<<"handleInputText()"<<" text provided: "<<text;

I am porting an application which uses Boost::Asio to an embedded system. I have already cross-compiled boost 1.57.0 binaries for the board using its BSP. To test the libraries working, I ran two http server examples that use synchronized and asynchronized writing respectively. The Sync version runs fine; while the Async one failed at writing. It returned error "Operation canceled". Can anyone point out where I should look for? Thanks. /* * Boost::Asio async example */ #include <iostream> #include <string> #include <boost/asio.hpp> #include <boost/bind.hpp> #include <boost/smart_ptr.hpp> using

How do i set TCP_NODELAY option if i use ip::tcp::iostream? I need a socket for this, but i can't find how to extract it from iostream. use iostream::rdbuf() #include <boost/asio.hpp> int main() { boost::asio::ip::tcp::iostream stream; const boost::asio::ip::tcp::no_delay option( true ); stream.rdbuf()->set_option( option ); } 来源： https://stackoverflow.com/questions/5706641/asio-iptcpiostream-and-tcp-nodelay

Alright, this is my current code snippet: namespace bai = boost::asio::ip; bai::tcp::socket tcp_connect(std::string hostname, std::string port) { try { boost::asio::io_service io_service; bai::tcp::resolver resolver(io_service); // we now try to get a list of endpoints to the server bai::tcp::resolver::query query(hostname, port); bai::tcp::resolver::iterator endpoint_iterator = resolver.resolve(query); bai::tcp::resolver::iterator end; // looking for a successful endpoint connection bai::tcp::socket socket(io_service); boost::system::error_code error = boost::asio::error::host_not_found;