gdbserver_tests/fork_chain.c

   1 #include <stdlib.h>
   2 #include <stdio.h>
   3 #include <errno.h>
   4 #include <unistd.h>
   5 #include <sys/wait.h>
   6 void fork_chain(int level)
   7 {
   8    int pid;
   9
  10    printf ("forking level %d\n", level);
  11    fflush (stdout);
  12    pid = fork();
  13    if (pid == -1) {
  14       perror("fork");
  15       exit(1);
  16    }
  17
  18    if (pid == 0) {
  19       if (level > 0) {
  20          fork_chain (level - 1);
  21       }
  22    } else {
  23       int ret;
  24       int status;
  25       while((ret = waitpid(pid, &status, 0)) != pid) {
  26          if (errno != EINTR) {
  27             perror("waitpid");
  28             exit(1);
  29          }
  30       }
  31    }
  32 }
  33 int main()
  34 {
  35    fork_chain (15);
  36    return 0;
  37 }