boost-asio

I've implemented a thread pool using boost::asio , and some number boost::thread objects calling boost::asio::io_service::run() . However, a requirement that I've been given is to have a way to monitor all threads for "health". My intent is to make a simple sentinel object that can be passed through the thread pool -- if it makes it through, then we can assume that the thread is still processing work. However, given my implementation, I'm not sure how (if) I can monitor all the threads in the pool reliably. I've simply delegated the thread function to boost::asio::io_service::run() , so

Theare is a wary small amount of boost::asio:: ssl small C++ educational codes base online. Even less on boost::asio::ssl::context::load_verify_file So I found one from here code with minimal modifications - compiles and runs with boost 1.47.0: #include <boost/asio.hpp> #include <boost/asio/ssl.hpp> #include <boost/bind.hpp> #include <iostream> #include <istream> #include <ostream> #include <string> class client { public: client(boost::asio::io_service& io_service, boost::asio::ssl::context& context, boost::asio::ip::tcp::resolver::iterator endpoint_iterator) : socket_(io_service, context) {

I cant tell, does boost asio handle endian? Asio does convert things like port into network order. The conversion functions are not exposed as part of the official interface and are hidden in the detail namespace instead (e.g. boost::asio::detail::socket_ops::host_to_network_short ). boost::asio::socket_'s do not perform any byte order conversion. 来源： https://stackoverflow.com/questions/524453/boost-asio-and-endian

I have a C++ client app that uses Boost ASIO to make SSL connections to various servers. But against 2 specific servers, the SSL connection cannot be established. It hangs in the call to boost::asio::ssl::stream::handshake() . I've used Wireshark to observe the conversation between client and server. A working SSL connection seems to do this: sslsocket.lowest_layer().connect( endpoint, ec ); C -> SYN -> S C <- SYN ACK <- S C -> ACK -> S sslsocket.handshake( SSLSocket::client, ec ); C -> 209 bytes -> S C <- 690 bytes <- S C -> 198 bytes -> S C <- 415 bytes <- S ...and at this point the ASIO

I'm catching errors in Boost Asio program like if (!error) { //do stuff } else { std::cout << "Error : " << error << std::endl; //handle error } But the error isn't human-readable (e.g. connecting to SSL server without certificate gives error asio.ssl:335544539). Is there any better way how to display error ? If you are likely using boost::system::error_code you can call: error.message() to get a more human-friendly message. Using operator<< translates into: os << ec.category().name() << ':' << ec.value() Here you can check a detailed overview of the available members in error_code . 来源： https