boost-asio | 易学教程

HTTPS POST request with boost asio

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I'm looking at this example for making HTTP POST requests. I'm interested about making an HTTPS POST request. How do I provide the location of .crt and .key file? Is there any example, possibly showing exception handling as well? Here's the groundwork for a simple POST request. If you define DEMO_USING_SSL you'll get SSL, otherwise no SSL The line ctx.set_default_verify_paths(); sets the verification paths so you should (normally/usually) pick up the system root certificates as trusted. Alternatively there are ctx.add_verify_path(...); ctx.add_certificate_authority(...); Be sure to look at man

C++ Boost.asio Ping

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问题 I'm trying to make a program that will list all of the IP addresses of devices on a network. One of the main components of this is being able to ping devices. This program must work on Linux, Windows and Mac, so I chose the Boost library. I managed to find this example in the documentation: http://www.boost.org/doc/libs/1_47_0/doc/html/boost_asio/example/icmp/ping.cpp I am fairly experienced at C++ when using OpenGL 3.1 and Shaders but when I run this program it pings over and over (454+) and

Boost ASIO async_write “Vector iterator not dereferencable”

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问题 I've been working on an async boost server program, and so far I've got it to connect. However I'm now getting a "Vector iterator not dereferencable" error. I suspect the vector gets destroyed or dereferenced before he packet gets sent thus causing the error. void start() { Packet packet; packet.setOpcode(SMSG_PING); send(packet); } void send(Packet packet) { cout << "DEBUG> Transferring packet with opcode " << packet.GetOpcode() << endl; async_write(m_socket, buffer(packet.write()), boost:

Issue with broadcast using Boost.Asio

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问题 I apologize in advance if the question has been previously answered, but I've searched and found nothing that helps me. As indicated by the question's title, I'm trying to broadcast a package from a server to a set of clients listening for any message. The client will count the number of messages it receives during one second. The server side of things goes like this: class Server { public: Server(boost::asio::io_service& io) : socket(io, udp::endpoint(udp::v4(), 8888)) , broadcastEndpoint

HTTP POST request using boost::asio

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Where can I see an example of HTTP POST request using boost::asio? I've only saw some examples with HTTP GET requests. Look at this http request header for example: POST /path/script.cgi HTTP/1.0 From: test@tests.com User-Agent: HTTPTool/1.0 Content-Type: application/x-www-form-urlencoded Content-Length: 32 argument1=text&argument2=arg2text Check out the get example and change the request to this. Probably alter whatever you think should be altered Matthias247 See How are parameters sent in an HTTP POST request? The ASIO part (sending the data) is similar to the example with GET. The

Retrieving tcp header using boost::asio::ip::tcp socket

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问题 I developed a TCP backend using boost asio and now I need to access the whole TCP packet (header + body). It is possible using TCP sockets? 来源： https://stackoverflow.com/questions/52631600/retrieving-tcp-header-using-boostasioiptcp-socket

Sending http GET request using boost::asio, similar to cURL

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问题 I'm trying to send a http GET request using the REST API of some domain. Basically what I'm trying to do is to replace following curl request: curl -k -H "Content-Type: application/json" -X GET --data '{"username":"user@name.co", "password":"test"}' https:/domain.name/api/login/ with some c++ code using boost::asio . I do not what to find all c++ code here , but some checkpoints would be great. 回答1: boost::asio is not an application level library. So you can open a connection with it, do an

Shared_Ptr of socket creation - what is wrong?

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So I try: boost::shared_ptr<tcp::socket> socket = boost::make_shared<tcp::socket>(io_service); As described here . But It bring me an error: Compiler tells me that it can not turn ( error C2664: boost::asio::basic_stream_socket<Protocol>::basic_stream_socket( boost::asio::io_service &)) 'boost::asio::io_service *const ' into 'boost::asio::io_service &' \include\boost\smart_ptr\make_shared.hpp What shall I do? You need to pass the io_service as a reference when using make_shared . boost::shared_ptr<tcp::socket> socket = boost::make_shared<tcp::socket>(boost::ref(io_service)); 来源： https:/

Clear input data from serial port in boost::asio

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I'm writing a C++ program for communicating with a Arduino over a serial port using boost::asio. After establishing the connection the Arduino resets itself. However the input buffer of the C++ program still contains old data sent from the Arduino. Since I have no use for this data I'd like clear the input buffer. How can I accomplish that using boost::asio? My code currently looks like this: #include <boost/asio.hpp> #include <vector> #include <iostream> using namespace std; using namespace boost::asio; int main() { io_service io_service; serial_port port(io_service, "/dev/ttyACM0"); port.set

Does boost::asio makes excessive small heap allocations or am I wrong?

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问题 #include <cstdlib> #include <iostream> #include <boost/bind.hpp> #include <boost/asio.hpp> using boost::asio::ip::tcp; class session { public: session(boost::asio::io_service& io_service) : socket_(io_service) { } tcp::socket& socket() { return socket_; } void start() { socket_.async_read_some(boost::asio::buffer(data_, max_length - 1), boost::bind(&session::handle_read, this, boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred)); } void handle_read(const boost: