#include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <time.h> #include <fcntl.h> #include <sys/shm.h> #include <sys/stat.h> #include <sys/mman.h> #include "writer.h" int main() { struct timespec tspec; /* init shm from reader's context */ void *read_addr = attach_writer(); while (1) { memcpy(&tspec, read_addr, sizeof(struct timespec)); printf("tv_sec: %ld , tv_nsec: %ld\n", tspec.tv_sec, tspec.tv_nsec); sleep(1); } return 0; }