asio device

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

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

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

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.

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

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

The following is an example code of serial_port synchronous reading/writing to a serial port device: #include If you want to control the read/write timeout, the write method must be asynchronous. In addition, the scheduled code is added: boost::asio::deadline_timer timer(io);timer.expires_from_now(boost::posix_time::millisec(60000));timer.async_wait(boost::bind(boost::

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

Comparison between boost. ASIO and ace on socket programming-simple log-Netease blog Comparison of socket programming between boost. ASIO and ACE 2010-05-17 17:36:52| Category:C/C ++ boost| Tag: |Font SizeLargeMediumSmallSubscription 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 arch

Transferred from: bytes Comparison of DS, KS, Asio, and wasapi output in win7 Next we will introduce the history of wasapi and the development history of Microsoft's voice processing: In Windows before WINXP, General DMA was used to process sound. DMA = Direct Memory Access is the IO mechanism of all the storage devices, such as harddisk, LAN Card, and drives, most of my computers in the 386 s used Pio to process HDD Data Access. That is, all

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

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

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

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