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Boost.Asio is a cross-platform C++ library for network programming that provides developers with a consistent asynchronous I/O model using a modern C++ approach.

Boost.Asio是一個跨平臺的C + +庫,它用現(xiàn)代C++方法為網(wǎng)絡(luò)編程人員提供一致的異步I/O模型。

 

Using Boost.Asio

How to use Boost.Asio in your applications. Includes information on library dependencies and supported platforms.

如何在你的應(yīng)用程序中使用Boost.Asio庫,以及關(guān)于庫依賴和所支持平臺信息。 

Tutorial

A tutorial that introduces the fundamental concepts required to use Boost.Asio, and shows how to use Boost.Asio to develop simple client and server programs.

介紹使用Boost.Asio必備的基本概念,同時示范如何使用Boost.Aaio開發(fā)簡單的客戶端\服務(wù)器程序。

Examples

Examples that illustrate the use of Boost.Asio in more complex applications.

更加復(fù)雜的應(yīng)用程序中使用Boost.Asio的示例。

Reference

Detailed class and function reference.

類和函數(shù)的詳細(xì)參考

Design

Rationale and design information for Boost.Asio.

Boost.Asio庫的基本原理及設(shè)計思路。

Supported Platforms

 支持平臺:

The following platforms and compilers have been tested:

已測試的平臺和編譯器:

 

  • Win32 and Win64 using Visual C++ 7.1 and Visual C++ 8.0.
  • Win32 using MinGW.
  • Win32 using Cygwin. (__USE_W32_SOCKETS must be defined.)
  • Linux (2.4 or 2.6 kernels) using g++ 3.3 or later.
  • Solaris using g++ 3.3 or later.
  • Mac OS X 10.4 using g++ 3.3 or later.

The following platforms may also work:

以下的平臺可能也可以使用:

 

  • AIX 5.3 using XL C/C++ v9.
  • HP-UX 11i v3 using patched aC++ A.06.14.
  • QNX Neutrino 6.3 using g++ 3.3 or later.
  • Solaris using Sun Studio 11 or later.
  • Tru64 v5.1 using Compaq C++ v7.1.
  • Win32 using Borland C++ 5.9.2

Dependencies

依賴性:

The following libraries must be available in order to link programs that use Boost.Asio:

以下是使用Boost.Asio 必需的鏈接庫:

 

  • Boost.System for the boost::system::error_code and boost::system::system_error classes.
  • Boost.Regex (optional) if you use any of the read_until() or async_read_until() overloads that take a boost::regex parameter.
  • OpenSSL (optional) if you use Boost.Asio's SSL support.

 

 

Boost.System 中的 boost::system::error_codeboost::system::system_error 類。

Boost.Regex (可選)。read_until() 或 async_read_until() 函數(shù)的重載形式都需要 boost::regex 參數(shù)。 如果你使用它們,則需要Boost.Regex庫。

OpenSSL (可選) 。如果需要Boost.Asio支持SSL,則需要OpenSSL

 

Furthermore, some of the examples also require the Boost.Thread, Boost.Date_Time or Boost.Serialization libraries.

另外,一些例子需要提供Boost.Thread,Boost.Date_Time 或Boost.Serialization 庫的支持。

 

[Note] Note

With MSVC or Borland C++ you may want to add -DBOOST_DATE_TIME_NO_LIB and -DBOOST_REGEX_NO_LIB to your project settings to disable autolinking of the Boost.Date_Time and Boost.Regex libraries respectively. Alternatively, you may choose to build these libraries and link to them.

 

注意:

使用MSVC或Borland C++,你可能需要在“工程設(shè)置”中分別添加 -DBOOST_DATE_TIME_NO_LIB-DBOOST_REGEX_NO_LIB 聲明,分別禁止Boost.Date_Time和Boost.Regex的自動鏈接,當(dāng)然你也可以這樣做:build這兩個庫,然后鏈接。

Building Boost Libraries

 編譯Boost庫:

You may build the subset of Boost libraries required to use Boost.Asio and its examples by running the following command from the root of the Boost download package:

你可以在下載包的根目錄下執(zhí)行如下的命令來編譯Boost.Asio所必需的Boost庫子集 


bjam --with-system --with-thread --with-date_time --with-regex --with-serialization stage

This assumes that you have already built bjam. Consult the Boost.Build documentation for more details.

這里假設(shè)你已經(jīng)編譯了bjam。請參考Boost.Build文檔以獲得更多信息。

Macros

The macros listed in the table below may be used to control the behaviour of Boost.Asio.

下表中的宏用來控制Boost.Asio狀態(tài)

Macro

Description

BOOST_ASIO_ENABLE_BUFFER_DEBUGGING

Enables Boost.Asio's buffer debugging support, which can help identify when invalid buffers are used in read or write operations (e.g. if a std::string object being written is destroyed before the write operation completes).

When using Microsoft Visual C++, this macro is defined automatically if the compiler's iterator debugging support is enabled, unless BOOST_ASIO_DISABLE_BUFFER_DEBUGGING has been defined.

When using g++, this macro is defined automatically if standard library debugging is enabled (_GLIBCXX_DEBUG is defined), unless BOOST_ASIO_DISABLE_BUFFER_DEBUGGING has been defined.

BOOST_ASIO_DISABLE_BUFFER_DEBUGGING

Explictly disables Boost.Asio's buffer debugging support.

BOOST_ASIO_DISABLE_DEV_POLL

Explicitly disables /dev/poll support on Solaris, forcing the use of a select-based implementation.

BOOST_ASIO_DISABLE_EPOLL

Explicitly disables epoll support on Linux, forcing the use of a select-based implementation.

BOOST_ASIO_DISABLE_KQUEUE

Explicitly disables kqueue support on Mac OS X and BSD variants, forcing the use of a select-based implementation.

BOOST_ASIO_DISABLE_IOCP

Explicitly disables I/O completion ports support on Windows, forcing the use of a select-based implementation.

BOOST_ASIO_NO_WIN32_LEAN_AND_MEAN

By default, Boost.Asio will automatically define WIN32_LEAN_AND_MEAN when compiling for Windows, to minimise the number of Windows SDK header files and features that are included. The presence of BOOST_ASIO_NO_WIN32_LEAN_AND_MEAN prevents WIN32_LEAN_AND_MEAN from being defined.

BOOST_ASIO_NO_DEFAULT_LINKED_LIBS

When compiling for Windows using Microsoft Visual C++ or Borland C++, Boost.Asio will automatically link in the necessary Windows SDK libraries for sockets support (i.e. ws2_32.lib and mswsock.lib, or ws2.lib when building for Windows CE). The BOOST_ASIO_NO_DEFAULT_LINKED_LIBS macro prevents these libraries from being linked.

BOOST_ASIO_SOCKET_STREAMBUF_MAX_ARITY

Determines the maximum number of arguments that may be passed to the basic_socket_streambuf class template's connect member function. Defaults to 5.

BOOST_ASIO_SOCKET_IOSTREAM_MAX_ARITY

Determines the maximum number of arguments that may be passed to the basic_socket_iostream class template's constructor and connect member function. Defaults to 5.

BOOST_ASIO_ENABLE_CANCELIO

Enables use of the CancelIo function on older versions of Windows. If not enabled, calls to cancel() on a socket object will always fail with asio::error::operation_not_supported when run on Windows XP, Windows Server 2003, and earlier versions of Windows. When running on Windows Vista, Windows Server 2008, and later, the CancelIoEx function is always used.

The CancelIo function has two issues that should be considered before enabling its use:

* It will only cancel asynchronous operations that were initiated in the current thread.

* It can appear to complete without error, but the request to cancel the unfinished operations may be silently ignored by the operating system. Whether it works or not seems to depend on the drivers that are installed.

For portable cancellation, consider using one of the following alternatives:

* Disable asio's I/O completion port backend by defining BOOST_ASIO_DISABLE_IOCP.

* Use the socket object's close() function to simultaneously cancel the outstanding operations and close the socket.


Basic Skills

基本技能

The tutorial programs in this first section introduce the fundamental concepts required to use the asio toolkit. Before plunging into the complex world of network programming, these tutorial programs illustrate the basic skills using simple asynchronous timers.

本指南的第一部分主要介紹使用Asio工具包所需要了解的基本概念。在進(jìn)入復(fù)雜網(wǎng)絡(luò)編程世界之前,這些示例程序?qū)⑴e一些使用簡單異步定時器的例子。

 

 

Timer1、使用同步定時器
Timer2、使用異步定時器
Timer3、回調(diào)函數(shù)綁定參數(shù)
Timer4、成員函數(shù)作為回調(diào)函數(shù)
Timer5、多線程回調(diào)同步

Introduction to Sockets

介紹套接字

The tutorial programs in this section show how to use asio to develop simple client and server programs. These tutorial programs are based around the daytime protocol, which supports both TCP and UDP.

這部分的實例主要介紹如何使Asio開發(fā)簡單的客戶端\服務(wù)器程序。這些程序都基于同時支持TCP和UDP協(xié)議的daytime協(xié)議。

The first three tutorial programs implement the daytime protocol using TCP.

前三個程序用TCP實現(xiàn)daytime協(xié)議。

 

 

Daytime1、同步TCP daytime客戶端
Daytime2、同步TCP daytime服務(wù)器
Daytime3、異步TCP daytime服務(wù)器

The next three tutorial programs implement the daytime protocol using UDP.

接下來的三個程序用UDP實現(xiàn)daytime協(xié)議。

 

 

Daytime4、同步UDP daytime客戶端
Daytime5、同步UDP daytime服務(wù)器
Daytime6、異步UDP daytime服務(wù)器

The last tutorial program in this section demonstrates how asio allows the TCP and UDP servers to be easily combined into a single program.

本部分的最后一個程序演示了asio怎樣將TCPUDP服務(wù)器簡易的組合到一個程序里

 

Daytime7、結(jié)合了TCP/UDP的同步服務(wù)器

posted on 2008-04-20 01:14 王曉軒 閱讀(7949) 評論(1)  編輯 收藏 引用 所屬分類: C\C++
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