what blocking mode

Reprint: http://blog.csdn.net/jay900323/article/details/181412171. Conceptual understandingIn network programming, we often see synchronous (sync)/async (Async), blocking (block)/non-blocking (Unblock) Four call modes:Synchronous:The so-called

Five IO models of LinuxReprint: http://blog.csdn.net/jay900323/article/details/18141217  performance analysis of Linux five IO modelsDirectory (?) [-] Conceptual understanding Five types of IO models under Linux Blocking IO

Reprint: http://blog.csdn.net/jay900323/article/details/18141217  Five IO models and analysis of LinuxDirectory (?) [-] Conceptual understanding Five types of IO models under Linux Blocking IO Model Non-blocking IO model

Reprint: http://blog.csdn.net/jay900323/article/details/18141217  performance analysis of Linux five IO modelsDirectory (?) [-] Conceptual understanding Five types of IO models under Linux Blocking IO Model Non-blocking

Original: http://www.cnblogs.com/kunhu/p/3624000.html1. Conceptual understandingIn network programming, we often see synchronous (sync)/async (Async), blocking (block)/non-blocking (Unblock) Four call modes:Synchronous:The so-called synchronization

Socket ChannelThe socket channel and file channel have different characteristics: The socket channel class can run in nonblocking mode and is optional. These two characteristics can activate large programs (such as network services and

Linux serial port I/O mode As we all know, in Linux, all devices exist in the form of files, and the serial port is the same. Generally, I/O operations are implemented in two ways: blocking and non-blocking. The concept of "timeout" is actually a

Non-blocking IO and blocking IO: In network programming, the concept of blocking IO and non-blocking IO is encountered for a network handle, and here is a description of the two sockets first:Basic concepts: Blocking IO:: The blocking mode of the

As we all know, all the devices in the Linux system are in the form of files, and the serial port is the same. Usually I/O operations are both blocking and non-blocking. In fact, the concept of "timeout" is a kind of processing method in blocking,

This article is suitable for beginners and intermediate readers Sometimes, it takes several hours to read, debug, and track excellent source code programs, so that you can grasp some key technical points and essence more quickly. Of course, the

Transferred from: http://blog.csdn.net/yikai2009/article/details/8653697Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.Directory (?) [-] Blocking Blocking operations

Go : This article is not a user's manual for java.io or Java.nio, nor how to use the technical documentation for Java.io and Java.nio. This is just an attempt to compare the two packages, highlighting their differences and their respective features

In network programming, a network handle may encounter the concept of blocking Io and non-blocking Io. Here we will first describe these two sockets: Blocking IO: the blocking mode of the socket means that the IO operation (including errors) must be

Channels are a channel for transmitting data, both buffers and entities (files or sockets), and the characteristics of the channel (which is also characteristic of NIO): The data in the channel is always read into a buffer, or it is always read from

Socket/ServerSocket Channel of JAVA-7NIO, niosocketchannelI. ServerSocketChannel ServerSocketChannel in Java NIO is a channel that can listen to new TCP connections, just like ServerSocket in standard IO. The ServerSocketChannel class is in the java.

MFC fully supports socket programming, but its documentation is vague. so that most network programs with slightly complex functions written in Visual C ++ still use their APIs. as a result, casyncsocket and csocket have become difficult, and the

Link: http://gcody.blog.ccidnet.com/blog-htm-do-showone-type-blog-itemid-217292-uid-36931.html [From] http://dev.cbw.com/c/c/200510195601_4292587.shtml 1. Set the flag bit to non-blocking mode, and call the connect function in non-blocking mode.2.

1.Closesocket (usually does not close immediately and goes through the time_wait process) and wants to continue to reuse the socket:Bool breuseaddr = true;Setsockopt(S, sol_socket, so_reuseaddr, (const char *) & breuseaddr, sizeof (bool )); 2.If you

Int send (socket S, const char far * Buf, int Len, int flags ); Both the client and server applications use the send function to send data to the other end of the TCP connection. The client program generally uses the send function to send requests

Use fcntl () to set the blocking nature of the blocking function. The fcntl Function #include #include #include #include #include #include #include #define ERR_EXIT(m) \ do { \ perror(m);\ exit(EXIT_FAILURE);\ }while(0)void