RedHawk Linux User's Guide version 6.3 日本語版

RedHawk Linux User’s Guide#include #include #include #include #include "sample_mod.h"static const char *devname = "/dev/sample_mod";static int nr_interrupts = 0;static int quit = 0;void interrupt_handler (int signum){nr_interrupts++;if ((nr_interrupts % 100) == 0) {printf (".");fflush(stdout);}if ((nr_interrupts % 1000) == 0)printf (" %d interrupts¥n", nr_interrupts);}void ctrl_c_handler (int signum){quit++;}int main(){int fd;struct sigaction intr_sig = { .sa_handler = interrupt_handler };struct sigaction ctrl_c_sig = { .sa_handler = ctrl_c_handler };sigaction (SIGUSR1, &intr_sig, NULL);sigaction (SIGINT, &ctrl_c_sig, NULL);if ((fd = open (devname, O_RDWR)) == -1 ) {perror ("open");exit(1);}if (ioctl (fd, RCIM_ATTACH_SIGNAL, SIGUSR1) == -1) {perror ("ioctl");exit(1);}printf ("waiting for signals...¥n");while (! quit)pause();}printf ("¥nhandled %d interrupts¥n", nr_interrupts);close(fd);exit(0);14-10