asio interface

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ASIO example HTTP client, synchronous example Sync_client.cpp

////Sync_client.cpp// ~~~~~~~~~~~~~~~//HTTP client, synchronizing//Copyright (c) 2003-2013 Christopher M. Kohlhoff (Chris at kohlhoff dot com)////distributed under the Boost software License, Version 1.0. (See accompanying//file license_1_0.txt or copy atHttp://www.boost.org/LICENSE_1_0.txt)//#include#include#include#includestring>#includeusingboost::asio::ip::tcp;intMainintargcChar*argv[]) { Try { if(ARGC! =3) {Std::cout"usage:sync_client "; Std

QT+BOOST::ASIO+TCP File Transfer

Client:void Qt_boost::p bsendfileclicked (){QString filename = Ui.lefilename->text ();Qbytearray ba = Filename.tolatin1 ();char * pfilename = Ba.data ();Std::ifstream IFS (Pfilename, ios::in|ios::binary|ios::ate);Long size = Ifs.tellg ();Char *p = new Char[size];IFS.SEEKG (0, Ios::beg);Ifs.read (p, size);Ifs.close ();Tcp::resolver _resolver (*ioservice);Tcp::resolver::query query (TCP::V4 (), "127.0.0.1", "10800");Tcp::resolver::iterator _iterator = _resolver.resolve (query);Tcp::socket _socket

ASIO-asynchronous compilation Error

# Include # Include # Include # Include Void print (const boost: System: error_code E,Boost: ASIO: deadline_timer * t, int * count){If (* count {STD: cout ++ (* Count ); T-> expires_at (t-> expires_at () + boost: posix_time: seconds (1 ));T-> async_wait (boost: BIND (print,Boost: ASIO: placeholders: error, T, count ));}} Int main (){Boost: ASIO: io_servic

Boost note--asio--(1) Simple synchronous communication small sample

Looking at the information of the Boost.asio Library of the day, it is still a little confused. For ASIO's study to continue, at the same time here also recorded the first small example of their own start. It feels better to start with a small example and then to understand what those principles are. Because the conceptual principle is too abstract, with a small example to know how to be a routine. For the ASIO library in the later study will continue

Coroutine Libraries: Network performance explosion ASIO asynchronous model (-O3 test)

There is a co-libraries in the GitHub organization of the Purecpp community: https://github.com/topcpporg/cpp_featuresRecently there are users to find me, want to know about the Coroutine library in the network performance, so select the standard library has been selected Boost.asio network library asynchronous model to do a horizontal comparison.In the case of small packets and the use of multicore, the network performance of the Coroutine library ASIO

Boost. asio series -- Timer

Synchronize Timer The timer name provided in asio is deadline_timer, which provides the time-out function. First, we will use the simplest Timer synchronization method as an example to demonstrate how to use it. # Include# IncludeInt main (){Boost: asio: io_serviceIo;Boost: asio: deadline_timerTimer (io, boost: posix_time: seconds (3 ));Timer. wait ();Std: cout

Async_write function of boost ASIO

Boost ASIO is a library for Asynchronous Network Communication. Among them, async_write is a common function. However, if it is not used correctly, unexpected potential bugs may occur. For example, the following code: for (int i=0; i The code is simple, that is, loop N times and send n buffer blocks. Our goal is to receive buffer1, buffer2 ,......, Buffer n. However, in fact, the above Code is faulty, and the server may receive completely disordered

Boost. asio series -- io_service

IO Model The io_service object is the scheduler in the asio framework, and all asynchronous io events are distributed and processed through it (an io_service object must be input in the constructor of the io object ). Asio: io_service;Asio: ip: tcp: socket (io_service ); In the asio framework, the main io synchronizati

Boost::asio Getting Started anatomy

Boost::asio can perform synchronous or asynchronous operations on I/O objects such as sockets, it is necessary to understand Boost::asio, your programs, and the process of their interaction before using Boost::asio. As an example of a bootstrap, we think about what happens when a socket performs a connection operation, and we start with a synchronous example wher

Comparison of Muduo and boost ASIO throughput

Muduo (Http://code.google.com/p/muduo) is a C + + network library based on reactor mode, I didn't write it with high concurrent high throughput as the main goal, but to my surprise, ping pong test shows that Muduo Throughput is more than 15% higher than Boost.asio. Test object ASIO 1.4.3 in boost 1.40 ASIO 1.4.5 (http://think-async.com/Asio/Download) Muduo 0.

Cross-platform C++/boost/asio simple HTTP POST request client model

in the transmission, 404 didn't find it, wait! http/1.1 indicates the version number of the HTTP Of course, if Baotou can also exist, it is not introduced here Then there is a blank line, split is the package body All right, just go to the code.#include #include#include#includestring>#includeusingboost::asio::ip::tcp;usingSTD::string;intPostConst string Host,Const string Port,Const string Page,Const string Data,stringrepo

Ff asio asynchronous message network framework

Http://www.cnblogs.com/zhiranok/archive/2011/12/12/boost_asio.html on front side As I mentioned, to address the problems encountered in boost ASIO, encapsulate ASIO with the following goals: 1. Create a socket and acceptor and no longer construct io_service by yourself. Because the objects in ASIO need to save the reference of io_service, To manually constr

Implementation analysis of Boost::asio Io_service

implementation Analysis of Boost::asio Io_service the role of Io_service Io_servie implements a task queue, where the task is a function of void (void). Io_servie the two most commonly used interfaces are post and run,post to the task queue, run is the task in the queue until all is finished, and run can be called by n threads. Io_service is a fully thread-safe queue. Interface for Io_servie The interface

Post two articles about ACE and boost: ASIO

Comparison of socket programming between ACE and ASIO Transferred from: Free my soul Ace is a very mature middleware product. It is an adaptive communication environment, but it is too ambitious. There are a bunch of design patterns, and the architecture is layer after layer. It is a little difficult for beginners.ASIO is a basic asynchronous Io library developed by boost. It encapsulates socket and simplifies development based on socket programs. Th

[Boost] ASIO explanation of boost Library 8-a few simple examples of TCP

I have made some minor changes and made notes on several examples on the boost official website. Synchronization Client Void test_asio_synclient () {typedef boost: ASIO: io_service ioservice; // The namespace has several common classes: accetpt, resolver, endpoint, sockettypedef boost: ASIO :: IP: TCP; try {ioservice Ios; Boost: System: error_code error; // 1. the interpreter is often used to resolve domain

Problems solved by aio, epoll, libevent, boost: asio

Over the past few days, I have been working on a large volume of data solutions for linux. I have continuously learned about aio, epoll, libevent, boost: asio. In the past, I only knew that they are both asynchronous and non-blocking, but what are the key points to solve the problem? Through these several days of in-depth understanding, I will summarize them: Aio is the asynchronous IO implemented by the kernel after linux2.6, or it is the true asynch

Problems solved by aio, epoll, libevent, boost: asio

Over the past few days, I have been working on a large volume of data solutions for linux. I have continuously learned about aio, epoll, libevent, boost: asio. In the past, I only knew that they are both asynchronous and non-blocking, but what are the key points to solve the problem? Through these several days of in-depth understanding, I will summarize them:Aio is the asynchronous IO implemented by the kernel after linux2.6, or it is the true asynchr

C + + Boost::asio Programming-asynchronous TCP detailed and instance code _c language

C + + Boost::asio programming-Asynchronous TCP Hello, everyone, I'm an asynchronous way. Unlike sync, I never take the time to wait for those turtle-speed IO operations, I just tell the system what to do, and then I can do something else. If the system completes the operation, the system will notify me by the callback object I gave it before.In the ASIO library, a function or method name in the asynchrono

Boost ASIO translation (i)

http://www.gamedev.net/blog/950/entry-2249317-a-guide-to-getting-started-with-boostasio/Compilation Environment boost1.59 vs2015A Guide to Getting Started with Boost::asioBoost ASIO learning GuideBoost::asio is a cross-platform C + + network that provides developers with asynchronous models using modern C + + methods andThe underlying IO library. Now has a large number of users and become part of the boost

ASIO learning 2: TCP server: Time Analysis

# Include Ctime > # Include Iostream > # Include String > # Include Boost / ASIO. HPP > UsingBoost: ASIO: IP: TCP; STD ::StringMake_daytime_string (){UsingNamespaceSTD;Time_t now=Time (0);ReturnCtime (Now );} Int _ Tmain ( Int Argc, _ tchar * Argv []){ Try {Boost: ASIO: io_service; // Create an

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