ebpf-lab

Example code from Learning eBPF by Liz Rice, https://github.com/lizrice/learning-ebpf
git clone https://git.in0rdr.ch/ebpf-lab.git
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demo.c (447B)

      1 #include <stdio.h>
      2 #include <time.h>
      3 
      4 int output(int hour, int min, int sec) {
      5   printf("Current time: %d:%d:%d \n", hour, min, sec);
      6 }
      7 
      8 int main(int argc, char** argv) {
      9   struct timespec timer = { 0, 700000000 };
     10   time_t datetime;
     11   // see /usr/include/bits/types/struct_tm.h
     12   struct tm i;
     13 
     14   for (;;) {
     15     datetime = time(NULL);
     16     localtime_r(&datetime, &i);
     17     output(i.tm_hour, i.tm_min, i.tm_sec);
     18     nanosleep(&timer, &timer);
     19   }
     20 }