1. Constructor
One deadline_timer only maintains one time-out period, and one deadline_timer does not maintain multiple timers at the same time. Specify the time when constructing deadline_timer:
1 basic_deadline_timer(boost::asio::io_service io_service);2 3 basic_deadline_timer( boost::asio::io_service io_service,4 const time_type expiry_time);5 6 basic_deadline_timer(boost::
1 Introduction
Asio is a cross-platform C + + library that is commonly used for network programming, low-level I/O programming, and so on (low-level I/O), with the following structural framework:
2 Using Asio
2.1 Downloads
Asio Library is divided into Boost version and non-boost version, please download it on the website.
2.2 Configuration
1) using Qt 5.9.1, i
To understand the basic concept of boost ASIO, here is the synchronous TCP/IP communication implemented by boost ASIO:Server Program section, if you want to keep the socket after the communication, you can dynamically request Socket_type, save the pointer, because Socket_type seemingly can not copy:#include"stdafx.h"#include#includeusing namespaceBoost::asio;using namespacestd;intMain () {Try{typedef ip::tc
Boost::asio Programming-Synchronous TCP
The Boost.asio Library is a cross-platform network and a C + + programming library of the underlying IO, which implements a unified asynchronous invocation model using modern C + + techniques.
The Boost.asio library supports TCP, UDP, and ICMP communication protocols.
The following describes the synchronous TCP mode:
Hello everyone! I am the sync way!
My main characteristic is the persistence! All operation
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
most of the reactor patterns used in high-performance network libraries under Linux are implemented, and the Boost ASIO uses Epoll and select to simulate Proactor mode under Linux, which affects its efficiency and complexity .look at the performance of Aboutspeaker's own Linux Reactor network library and ASIO, which is about 1/5 higher than ASIO performance (thro
This is a created
article in which the information may have evolved or changed.
Today, on the subway, it occurred to me that it was possible to use the channel in go to easily implement the asynchronous function in ASIO. In fact, ASIO mainly with the use of function variables to hold the code, and it is because C and C + + do not support the reflection, there is no problem in go, the direct use of reflect
Environment: vs2010,
Boost_000046_1, decompress it, and put it in, D: \ boost_000046_1.
1. compile.
Most of the boost library's source files are only cast files, so many libraries can be used without compilation. However, some libraries need to compile the source code. ASIO requires compilation.
How to compile it? Download bjam.exe from the official boostofficial website and put it under the root directory of the boost source file.
Boost: ASIO learning-HTTP server performance test report-column in kraussyin-blog channel-csdn. net
Boost: ASIO learning-HTTP server performance test report
Category: boost
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I carefully read the performance test items of ASIO today:Linux performance improvementsI tried it myself, but the test
Io_service: The run function will be automatically returned when there are no tasks. This is not convenient for wtl projects. I have mentioned using a loop to run the run function in my previous article, that is not elegant. Today, I found a new method on the Internet and finally found that the io_service: Work class can enable the io_service: Run function to still not return when there is no task until the work object is destroyed.
Boost: ASIO: io_s
Http://www.gamedev.net/blog/950/entry-2249317-a-guide-to-getting-started-with-boostasio?pg=4This section adds tasks for Io_service and distinguishes between dispatch and post. If Io_service is the brain of the ASIO library, Post and dispatch are the hands and feet of the ASIO library.Let's take a look at example 1#include The code uses a smart pointer to control the Io_service, using a mutex to control the
C ++ 03: Use boost-implement simple echo server with ASIO
C ++ 03: Use boost-implement simple echo with ASIO Server
I. WritingCode
Note: The following code is taken from the example code of boost 1.40:
/// Async_tcp_echo_server.cpp //~~~~~~~~~~~~~~~~~~~~~~~~~ //// Copyright (c) 2003-2008 Christopher M. kohlhoff (Chris at kohlhoff dot com) // distributed under the boost software license, Versi
First, the role of Io_service
Io_servie implements a task queue, where the task is a void (void) function. Io_servie most commonly used two interfaces are post and run,post to the task queue, run is the task in the execution queue until all is done, and run can be called by n threads. Io_service is a fully thread-safe queue.
Second, the Io_servie interface
The interfaces provided are run, Run_one, poll, Poll_one, stop, Reset, dispatch, post, most com
Boost::asio Programming-Synchronizing TCP
Boost.asio Library is a cross-platform network and the underlying IO C + + programming library, which uses modern C + + techniques to implement a unified asynchronous call model.
The Boost.asio library supports TCP, UDP, and ICMP communication protocols.
The following describes the synchronous TCP mode:
Hello everyone! I am the sync mode!
My main feature is perseverance! All the operation to complete or error
After completing the first boost: ASIO-based communication service program, review the concepts used and refer to some materials. We will use a series to summarize how to write high-performance TCP service programs through boost: ASIO.
This article describes how to listen to a port and receive connection requests from a single thread. At the same time, the previous "elegant exit" code is also reused.
First,
Recently, XMLSocket was added to the server to communicate with Flash. This protocol is actually a string protocol ending with \ 0. To make asio compatible with this Protocol, I have found async_read_until asynchronous reading series from the document. When this function is used in principle, a streambuf and a separator are given. When asio encounters a separator, it returns. You can read the required data
Boost: ASIO: streambuf is defined as follows:
Namespace boost {Namespace ASIO {
/// Typedef for the typical usage of basic_streambuf.Typedef basic_streambuf
} // Namespace ASIO} // Namespace boost
Basic_streambuf inherits from STD: streambuf, as follows:
Class basic_streambuf: Public STD: streambuf,Private noncopyable
----------------------------
STD: streambuf
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