#include <stdio.h>
#include <unistd.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <time.h>
#include <sys/time.h>

void main() {
    char* fileName = "/mnt/test/file1.txt";
    char buf[128];
    struct stat st;
    struct timeval tv_begin, tv_end;

    // create and write a file, then fflush and fsync
    FILE* stream = fopen(fileName,"w");
    fwrite("0123456789", sizeof(char), 10, stream);
    fflush(stream);
    fsync(fileno(stream));
    //fsync(stream);
    fclose(stream);

    // last file status change timestamp
    stat(fileName, &st);
    printf("mtime:%06d.%06d\n", st.st_mtim.tv_sec, st.st_mtim.tv_nsec);
    printf("ctime:%06d.%06d\n", st.st_ctim.tv_sec, st.st_ctim.tv_nsec);

}