voip blocking

Blocking QueuesThe blocking queue is the content in the new Java 5 concurrency feature, and the interface for the blocking queue is java.util.concurrent.BlockingQueue, which has multiple implementation classes: Arrayblockingqueue, Delayqueue, Linkedblockingqueue, Priorityblockingqueue, Synchronousqueue, etc., the use of a similar, specific to view the JDK documen

Use fcntl () to set the blocking nature of the blocking function. The fcntl Function #include What are the differences between the blocking and non-blocking modes when using Socket? The main difference between the blocking mode and the non-

Click to enter _ more _java thousand ask1. What is the difference between blocking and non-blocking?In network programming, we often see synchronous, asynchronous, blocking, non-blocking, four calls and their combinations.Understanding synchronous, asynchronous look here: What is the difference between synchronous and

The cornerstone behind NIO design: The reactor pattern, an architectural pattern for event multiplexing and dispatch. Reactors (Reactor): Architectural patterns for event multiplexing and dispatch Typically, the file or device specified for a file descriptor has two ways of working: blocking and non-blocking . The so-called blocking means that when attempting to

in the General Register. The command of the process is being executed, and the address space of the process is being read and written. Ready. This process can be executed at any time without waiting for any event, but the CPU is still executing another process, so the process is waiting for scheduling by the kernel in a ready queue. There may be multiple ready processes in the system at the same time. Who should execute the scheduling? The scheduling algorithm of the kernel is based on priorit

Document directory In layman's terms From a program perspective Http://www.artima.com/articles/io_design_patterns.html Http://note.sdo.com/u/1434409594/n/lvRFW ~ Kjr2n0lx0ne004_r Http://www.cnblogs.com/xuxm2007/archive/2011/08/15/2139808.html, illustration I have read some blogs, and few people can make it clear, and many people do not understand it at all.In layman's terms Blocking and non-blocking,

Java multi-thread (9) blocking queue, java multi-thread blocking queue Reprinted please indicate the source: http://blog.csdn.net/xingjiarong/article/details/48005091 In the previous blog, we introduced how to use Object locks, conditional locks, and more convenient synchronized keywords to implement multi-thread synchronization and mutual exclusion. You may think it is very convenient to use the synchroni

technology:The Queueing method I chose corresponds to synchronous and asynchronous. Waiting in the queue is synchronous, the number waiting is asynchronous. I am in the process of waiting, be able to call to send text messages read the action, is non-blocking. If in the waiting process, can not make a call to send text messages to read the action, it is blocking.1.3 Summary:Synchronization and Asynchro

Differences between blocking and non-blocking socket in Linux Network Programming-slj_win's column-blog channel-csdn. net Differences between blocking and non-blocking socket in Linux Network Programming Category: c Read by 358 Comment (0) Favorites Report Socketlinux Programming Network Ser

Synchronous Asynchrony is for the interaction of the application and the kernel. For example: When a process triggers an IO operation,Synchronization: The process needs to determine when the IO operation is complete and the process itself needs constant queries to determine whether the task is complete. (during which process can do other things)Async: The process does not need to determine when the IO operation is complete, and the kernel notifies the process when the task is completed.Blocking:

, it is not directly to receive the data but to create a callback function. Callback functions are maintained by the system. He automatically scans the data store at the specified time. If there is data, he stores the data in the specified byte array. Without the user to care. Second explanation: One, to give a call example:Blocking block is when you dial someone's phone, but the person is not there, so you take the phone and wait for him to come back, and you can't use the phone. The synchroniz

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 blocking/non-blocking.These two concepts are often confusing, because they both involve Io processing and have some similarities.First, we will explain the concepts of synchronization and Asynchronizati

processing mechanism is similar to select/poll and other multiplexing Io operations. When the concerned message is triggered, the message trigger mechanism will trigger the processing of the message. Next, let's explain the blocking and non-blocking concepts. These two concepts are related to the status when the program waits for messages (synchronous or asynchronous. In the above example, whether waiting

Protocol receives the data. When the Protocol receives the data, the Recv function copies the data in the s receiving buffer to the Buf (note that the data received by the protocol may be larger than the length of the Buf, in this case, you need to call the Recv function several times to copy the data in the s receiving buffer. The Recv function only copies data. The protocol is used to receive data ), The Recv function returns the number of bytes of the actual copy. If a Recv error occurs dur

Understanding synchronous, asynchronous, blocking, and non-blockingconclusion: Blocking, non-blocking is independent of synchronous asynchrony. Turn to knowing"Blocking" and "non-blocking" and "synchronous" and "asynchronous" cannot simply be literally understood, providing

I think that to master the TCP/IP network programming under Linux, at least three levels of knowledge need to be familiar: 1. TCP/IP protocol (e.g. connection establishment and termination, retransmission and acknowledgement, sliding window and congestion control, etc.) 2. Socket I/O system calls (focus like read/write), which is the behavior of the TCP/IP protocol at the application level. 3. Write the performant, scalable server program. including multithreading, IO multiplexi

1. Basic ConceptsThe so-called blocking, that is, the kernel will suspend the process if the condition is not met (I/O may need to be generated) when it is called on the file operation I/O system. Non-blocking will return immediately if the discovery condition is not satisfied. Also need to pay attention to the non-blocking is not polling, or it is not much diffe

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 premise is to have a general understanding of these technologies.I have compiled several Program Programs that use the csocket class and use Client/Server (Client/Server) to chat online and transmit files (For details, refer to source code reference). Dur

I recently saw some posts and replies on the Internet, and found some descriptions about the differences between non-blocking and blocking on the Internet, it is found that many people have different misunderstandings when describing the differences between the Operation Return and buffer processing when sending and receiving the two. Therefore, I want to write an article to correct the error and make it ea

Concept Grooming:Story monologue: full of love tea, nonsense not much to say, began to boil boiling water.Characters: full, ordinary kettle, Superior Kettle (water meeting Ring)1. Put the kettle on the fire, stand there and wait for the water to open (synchronous Blocking) I feel a little bit silly 2. Put the kettle on the fire, go to the living room to watch tv, and occasionally go to the kitchen to see the water open wood has (synchronou