Signal in Experiment 1. Study the kill command master sends a signal via the kill command. 2 programming, user defined signal processing functions to intercept messages. Message processing function, set the flag variable, while the main program pause () system call to wait for further news, if the message is a user, the information displayed on the terminal window. Open a command line window and run this program. Open another command line window, by the ps command process No. 2 program, send the user a message to the process with the kill command to observe the output. By the alarm function to their own processes send messages once every 5 seconds, each received a message to display information to the end of the process 10 times.* Program, through the kill () function to send the same message, the observed output. Flowchart:

Linux-Signaling experiments.doc

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