src/tests/system/libroot/posix/init_rld_after_fork_test.cpp

   1 #include <errno.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <string.h>
   5 #include <unistd.h>
   6
   7 #include <OS.h>
   8
   9
  10 static void
  11 list_semaphores(const char* process)
  12 {
  13         printf("%s (%ld) semaphores:\n", process, find_thread(NULL));
  14
  15         sem_info semInfo;
  16         int32 cookie = 0;
  17         while (get_next_sem_info(B_CURRENT_TEAM, &cookie, &semInfo) == B_OK)
  18                 printf("  %9ld  %s\n", semInfo.sem, semInfo.name);
  19 }
  20
  21
  22 int
  23 main()
  24 {
  25         pid_t child = fork();
  26         if (child < 0) {
  27                 fprintf(stderr, "Error: fork() failed: %s\n", strerror(errno));
  28                 exit(1);
  29         }
  30
  31         if (child > 0) {
  32                 // the parent process -- wait for the child to finish
  33                 status_t result;
  34                 wait_for_thread(child, &result);
  35         }
  36
  37         list_semaphores(child == 0 ? "child" : "parent");
  38
  39         return 0;
  40 }