cwdm multiplexer

--select () is provided in BSD to provide a blocking query to multiple I/O. It provides a method of blocking queries for multiple I/O descriptors at the same time, which makes it easy to implement multiplexing. POSIX also uses this approach in accordance with the Protocol for Unified UNIX specifications, so we can use the Select method in most operating systems.Using specialized I/O multiplexer: In "UNIX?" System V Programmer ' s guide:streams describ

said the reactor three models, then Netty is what kind of it. In fact, the Netty threading model is a variant of the reactor model, which is to remove the third variant of the thread pool, which is also the default mode for Netty NiO. Participants in the reactor mode in Netty mainly have the following components: Selector eventloopgroup/eventloop channelpipeline Selector is the Selectablechannel multiplexer provided in NiO, acting as a demultiplexer

and provides information on data structure access and the maintenance of read and write locations. All 8 basic types have corresponding buffers: Bytebuffe, Charbuffer, Shortbuffer, Intbuffer, Longbuffer, Floatbuffer, DoubleBuffer. They implemented the same interface: Buffer. (2) Channel channel We read and write the data through the channel, it's like a pipe, it's a channel. the channel is different from the flow where the channel is bidirectional and can be used for reading, writing, and simul

does a lot of work for you, by multiplexing a single connection so that you can effectively use your spare time. When a different caller accesses it at the same time, it automatically uses the pipeline to detach the access request, so the work is handled by the pipeline regardless of whether it is accessed in a blocking or asynchronous manner. So we can have 10 or 20 previous "Get A and B" scenarios (requests from different apps), and they get connected as soon as possible. Essentially, it fill

supporting new kinds of LSR (including dense wavelength split multiplexer, plus/minus multiplexer, and fiber crossover). GMPLS uses the IGP (internal Gateway Protocol) extension to support multiple connection types, including regular, non-packet and contiguous connections into the connection state database. If the nodes at either end of the connection are able to send and receive packets, GMPLS treats the

bus width, support for byte, half word and word transmission. AHB system master, slave and infrastructure are composed of three parts. The transmission on the entire AHB is issued by master and is responded by slave. And infrastructure consists of 7 parts: Arbiter, Master-to-slave multiplexer, Slave-to-master multiplexer, Decoder, Dummy Slave, Dummy Master. Since AHB supports multiple master, arbiter is re

===================================================== The simplest ffmpeg-based package format processing series of articles list: Simplest FFmpeg-based package format processing: AV splitter Lite (demuxer-simple) Simplest FFmpeg-based package format processing: AV Splitter (demuxer) Simplest FFmpeg-based package format processing: AV multiplexer (muxer) Simplest ffmpeg-based Encapsulation Format processing: Encapsulation format conversion (remuxer) =

standard input. The process is no longer able to receive any input, even if it is running in the foreground. REDIRECT standard output and standard error to file nohup.out . In other words, the nohup command actually separates the child process from the session it is in.Note that the nohup command does not automatically turn the process into a "background task", so you must add a symbol.Seven, screen command and Tmux commandAnother idea is to use the terminal

Machine7 192.168.1.101 Otherpc Otheralias /etc/services: Network Service list and mapping between service and port number/etc/services contains all of the network service name and port number mapping between, a lot of system programs to use this file. Linux System Port Classification: Universal Port: 0-1023 can be registered port: 1024-49151 Dynamic or Private port: 49152-65535. The following are the first few lines of the default/etc/services in Redhat installation:HTML code

Tmux (full name is Terminal multiplexer) is an excellent end-use software, similar to GNU screen, but from OpenBSD, with BSD licensing. The most intuitive benefit of using it is that when you log in to a remote host through a terminal and run Tmux, you can open multiple consoles in it without having to "waste" redundant terminals to connect to the remote host, which is much more than that. Advantages over screen: You can split the windows horizontally

is established successfullyNIO: (New io/non-block IO) is a non-blocking synchronous communication mode. Communication between client and server via channel (avoid the overhead of using three handshake for TCP to establish a connection). NiO reads and writes to the channel. These channel will be registered on the selector multiplexer. The selector polls the channel through a thread without stopping. Find out which channel is ready to perform IO operat

adding the following line of code to .zshrc or to .bashrc the file:You can also map your escape key like Vim: 1 bindkey -M viins ‘jj’ vi-cmd-mode Another benefit is that you can j、k go through the natural browsing history. You can also .zshrc add functionality in your files by following the code ctrl-r .8. Add Tmux to WorkflowTmux is a terminal multiplexer that allows you to connect and manage multiple server-side sess

telnet or ssh telnet to Linux, if the connection is not normal interruption, reconnect, the system will open a new session, unable to restore the original Session.screen command can solve the problem. The screen tool is an end-multiplexer, in essence, which means you can run multi-terminal applications using a single terminal window.Screen-lsScreenThere is another tmux that is also very powerful.Tmux can configure its own shortcut keys in the ~/.tmux.

concept, and it works as follows:Figure 6-4 Netty 4 serialization design conceptA nioeventloop aggregates a multiplexer selector, so it can handle hundreds or thousands of client connections, and Netty's processing strategy is to have a new client access whenever The Nioeventloop thread group in order to obtain an available nioeventloop, when the upper bound of the array to return to 0, in this way, you can basically guarantee the load balance of eac

, read and write events, the channel is in a ready state and will be polled by selector. The Selectionkey can then be used to obtain a set of ready channel for subsequent I/O operations. A multiplexer selector can poll multiple channel at the same time, because the Jdk1.5_update10 version (+) uses Epoll () instead of the traditional select implementation, so it does not have the maximum connection handle 1024/2048 limit. This means that onl