In that year, I learned Linux C-signal processing step by step ~

 

Reprinted please indicate the source: http://blog.csdn.net/muge0913/article/details/7317621

Signal processing is LinuxProgram. Use signal processing to simulate the interrupt function of the operating system. To use the signal processing function, you must enter a signal processing function.

# Include <stdio. h> # include <sys/types. h> # include <stdlib. h> # include <signal. h> int flag = 1; void func (INT sig) {printf ("I get a signal! \ N "); flag = 0;} int main () {signal (SIGINT, func); printf (" PID: % LD \ n ", (long) getpid (); While (FLAG) pause (); Return 0 ;}
 

Run ,,,,,

 
# GCC Sig. C-O sig #./sig on another terminal: # Kill-int 333 // 333 is the process number printed by the program