voip blocking

Http://hj490134273.blog.163.com/blog/static/1446496162010494441182/ I just started to learn socket programming. I just made a simple chat room program. Later I went deep into it and found many problems, first, let's talk about the three socket usage methods (winapi socket, casyncsocket, and csocket) on the widows platform. First, let's talk about the differences between the four modes. I 've got to know about them by looking for information everywhere, recorded here: During network programming,

Basic Winsock knowledge We do not plan to systematically introduce socket or Winsock knowledge here. First, we will introduce the Winsock API function, introduce the concept of blocking/non-blocking, and then introduce the use of socket. Winsock APIA socket interface is an API for network programming (usually the TCP/IP protocol or other protocols. The earliest socket interface is the Berkeley interface, w

Welcome reprint, Reproduced please specify the original address: http://blog.csdn.net/majianfei1023/article/details/453148030. IntroductionAre blocking not synchronous, non-blocking is not asynchronous, what is their relationship? Students who have just come into contact with network programming often ask such questions and confuse them, and here I use my own understanding to explain them in detail.Thought

To put it more simply: Obstruction is not the end of the work, no return,Non-group games you do it first, I'll see if there's anything else. Tell me when it's over. Let's take the most commonly used send and recv two functions ...For example, you call the Send function to send a certain byte, in the system sent to do the work is actually just the data transfer (COPY) to the TCP/IP protocol stack output buffer, and its success does not mean that the data has been successfully sent out, if the tcp

Introduction to an IO modelTo better understand the IO model, we need to review it in advance: synchronous, asynchronous, blocking, non-blockingWhat is the difference between synchronous (synchronous) IO and asynchronous (asynchronous) Io, what is blocking (blocking) IO and non-blocking (non-

Simply put: Blocking means you cannot finish it, If you are not in a group competition, you should do it first. I want to see if there is anything else. Let me know when it's over. Let's take the most commonly used send and Recv functions for example... For example, if you call the send function to send a certain byte, the task of sending data within the system is to transmit data (copy) to the output buffer of the TCP/IP protocol stack, successful ex

Recently encountered some common concepts, especially the concept of network programming, such as: blocking, non-blocking, asynchronous I/O and so on, for these concepts themselves are not too clear understanding, but very vague concept, said understand it also understand, but to let oneself accurately describe the specific details of the concept, but said not so accurate, This is the reason why they have n

Http://blog.csdn.net/lb85858585/article/details/6693458Differences between synchronous/asynchronous mode and blocking/non-blocking mode I like to explain some concepts by connecting to some phenomena in real life in my own language. When I can do this, it means that I have understood this concept. the concept to be explained today is: the difference between synchronous/asynchronous and

first step: Save the CPU context, program counters, and registers.The second step: Update the PCB information, the process of the PCB into the corresponding queue, such as ready, in an event blocking queue, select another process to execute, and update its PCB.Step three: Update the data structure of the memory management.Fourth step: Restore the processor context#这几步理解不了无所谓 .... In fact, the main thing is to explain that the process and the process

Simply put: Blocking means you cannot finish it,If you are not in a group competition, you should do it first. I want to see if there is anything else. Let me know when it's over. Let's take the most commonly used send and recv functions for example...For example, if you call the send function to send a certain Byte, the work done by sending in the system is actually to transfer data (Copy) to the output buffer of the TCP/IP protocol stack, it is succ

Oracle blocking (blocked), blocking Blocking is a common situation for DBAs. especially poor application design blocking can cause serious performance degradation until the database crashes. For DBA, it is necessary to know how to locate the system blocking, who is the

During network programming, we often see four call Methods: synchronous, asynchronous, blocking, and non-blocking. These methods are not easy to understand. The following is my understanding of these terms.SynchronizationThe so-called synchronization means that when a function call is sent, the call will not return until the result is not obtained. According to this definition, most functions are called syn

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