tests/freebsd_waitpid_nohang.c

   1 /*-
   2  * Copyright (c) 2016 Jilles Tjoelker
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  */
  26
  27 #include <sys/cdefs.h>
  28 #include <sys/wait.h>
  29
  30 #include <darwintest.h>
  31 #include <signal.h>
  32 #include <unistd.h>
  33
  34 T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
  35
  36 T_DECL(waitpid_nohang, "FreeBSDarwin--waitpid_nohang")
  37 {
  38         pid_t child, pid;
  39         int status, r;
  40         siginfo_t siginfo;
  41
  42         child = fork();
  43         T_ASSERT_POSIX_SUCCESS(child, "child forked successfully");
  44         if (child == 0) {
  45                 sleep(10);
  46                 _exit(1);
  47         }
  48
  49         status = 42;
  50         pid = waitpid(child, &status, WNOHANG);
  51         T_ASSERT_POSIX_ZERO(pid, "waitpid call is successful");
  52         T_EXPECT_EQ(status, 42, "status is unaffected as expected");
  53
  54         r = kill(child, SIGTERM);
  55         T_ASSERT_POSIX_ZERO(r, "signal sent successfully");
  56         r = waitid(P_PID, (id_t)child, &siginfo, WEXITED | WNOWAIT);
  57         T_ASSERT_POSIX_SUCCESS(r, "waitid call successful");
  58
  59         status = -1;
  60         pid = waitpid(child, &status, WNOHANG);
  61         T_ASSERT_EQ(pid, child, "waitpid returns correct pid");
  62         T_EXPECT_EQ(WIFSIGNALED(status), true, "child was signaled");
  63         T_EXPECT_EQ(WTERMSIG(status), SIGTERM, "child was sent SIGTERM");
  64 }