vsat communication

Shared Memory for inter-process communication and inter-process communication Shared Memory is a physical memory shared by multiple time periods. Shared memory is the fastest way to share data between processes. Header file: # include A: Create shared memory. Int shmget (key_t key, int size, int shmflg) 1. key: key value, obtained by the ftok function. 2. size: the size of the shared memory. 3. shmflg: fla

C ++ Windows Socket implements the simplest C/S network communication (TCP) and socket network communication 1. server code: # Include 2. client code: # Include 3. program running:

Socket communication PHP As a client, C + + as a service-side communication problem ... Recently want to do a title such things, now PHP send can succeed, C + + to make the correct corresponding: send a JSON string, but the C + + message sent by PHP can not receive ... Don't know why this is. Would you please help me? Is there a problem with the message format that C + + passes to PHP? The key question I fe

"/* Famous pipe file name */#defineMax_buffer_size PIPE_BUF/* defined in LIMITS.H */intMainintargcChar* argv[])/*parameter is the string that will be written*/{ intFD; CharBuff[max_buffer_size]; intNwrite; if(ARGC 1) {printf ("Usage:./fifo_write string\n"); Exit (1); } sscanf (argv[1],"%s", Buff); /*Open FIFO pipeline as write-only blocking*/FD=Open (Myfifo, o_wronly); if(FD = =-1) {printf ("Open FIFO file error\n"); Exit (1); } /*to write a string to the pipeline*/ if((Nwrite = write (

client.c:1 #include 650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M02/7F/04/wKiom1cPr4WTswenAAHyXUYjMeQ172.png "title=" Screenshot.png "alt=" Wkiom1cpr4wtswenaahyxuyjmeq172.png "/>This article from "Liveyoung" blog, reproduced please contact the author!Process communication (named pipe one-way communication)

) {System.out.println ("Error" +ex); } Try{URI R=uri.create (URI); Session= Container.connecttoserver (client.class, R); } Catch(Deploymentexception |IOException E) {E.printstacktrace (); } } Public Static voidMain (string[] args) {main client=NewMain (); Client.start (); BufferedReader BR=NewBufferedReader (NewInputStreamReader (system.in)); String input= ""; Try { Do{input=Br.readline (); if(!input.equals ("Exit") ) Client.session.getBasicRemote (). Send

the JTree and checked the implementation effect of the above Code: Run: root friend, root friend, branch node, customer leaf node, Yuan Liye node, Ke QiWe can see from the above that the leaf node is what we want. When you double-click a branch node, we need to create a dialog box in which the JPanel design layout is used. When you double-click a friend, the chat dialog box is displayed. In the above Code, we add a dialog box function, Tree = new JTree (top); tree. addMouseListener (new Mou

Hybrid application development-Serial Communication (1), application development-Serial CommunicationCRC verification 　　Cyclic Redundancy check(Cyclic Redundancy Check, CRC) is a hash function that generates a short fixed-digit verification code based on network data packets or computer files, it is mainly used to detect or verify possible errors after data transmission or storage. It uses the division and remainder principles for error detection. In

1. The main thread creates the handler Class Object and overwrites the handlemessage method: Handler handler = new handler (){ Public void handlemessage (Message MSG) { Switch (msg. What) { Case 0: break; } } }; 2. Create a subthread in the main thread (Use thread) 3. The subthread uses the handler object to create a message object: Message M = new handler. obtainmessage (); 4. Set the values of what and arg1: M. What = 0; M. arg1 = 100; 5. M

Here's a way to implement Java and Flex communications using BlazeDS BlazeDS is a server-based Java remote control (remoting) and Web messaging (messaging) technology that enables back-end Java applications to communicate with Adobe Flex applications running on browsers. 1. Development Preparation 1. Install JDK and Tomcat and implement a successful configuration. 2. Install the Flex SDK. See the official documentation for details 3. Download BlazeDS, if you are using the turnkey version (rec

Linux various IPC mechanisms (2011-07-08 16:58:35) Original Address:Linux various IPC mechanisms (RPM)Jianpengliu The original post on the IBM Developerworks website, is a series of articles, author Zheng Yanxin, through the explanation and examples of the use of several IPC in Linux, I feel very good, here to make a reservation, can read the basis of the Linux IPC is no problem. i) the Linux environment interprocess commu