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   sigaction.3p    ( 3 )

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Примеры (Examples)

Establishing a Signal Handler
       The following example demonstrates the use of sigaction() to
       establish a handler for the SIGINT signal.

           #include <signal.h>

           static void handler(int signum)
           {
               /* Take appropriate actions for signal delivery */
           }

           int main()
           {
               struct sigaction sa;

               sa.sa_handler = handler;
               sigemptyset(&sa.sa_mask);
               sa.sa_flags = SA_RESTART; /* Restart functions if
                                            interrupted by handler */
               if (sigaction(SIGINT, &sa, NULL) == -1)
                   /* Handle error */;

               /* Further code */
           }