2004-06-19 Roland McGrath <roland@redhat.com>

	* posix/tst-waitid.c: New file.
	* posix/Makefile (tests): Add it.

1 files changed, 284 insertions, 0 deletions

diff --git a/posix/tst-waitid.c b/posix/tst-waitid.c
new file mode 100644
index 0000000..406499c
--- /dev/null
+++ b/posix/tst-waitid.c
@@ -0,0 +1,284 @@
+/* Tests for waitid.
+   Copyright (C) 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include <error.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/wait.h>
+#include <signal.h>
+
+#define TIMEOUT 15
+
+static void
+test_child (void)
+{
+  /* First thing, we stop ourselves.  */
+  raise (SIGSTOP);
+
+  /* Hey, we got continued!  */
+  while (1)
+    pause ();
+}
+
+#ifndef WEXITED
+# define WEXITED	0
+# define WCONTINUED	0
+# define WSTOPPED	WUNTRACED
+#endif
+
+static int
+do_test (int argc, char *argv[])
+{
+  pid_t pid = fork ();
+  if (pid < 0)
+    {
+      error (0, errno, "fork");
+      return EXIT_FAILURE;
+    }
+  else if (pid == 0)
+    {
+      test_child ();
+      _exit (127);
+    }
+
+  /* Give the child a chance to stop.  */
+  sleep (2);
+
+  /* Now try a wait that should not succeed.  */
+  siginfo_t info;
+  info.si_signo = 0;		/* A successful call sets it to SIGCHLD.  */
+  int fail = waitid (P_PID, pid, &info, WEXITED|WCONTINUED|WNOHANG);
+  switch (fail)
+    {
+    default:
+      error (0, 0, "waitid returned bogus value %d\n", fail);
+      return EXIT_FAILURE;
+    case -1:
+      error (0, errno, "waitid WNOHANG on stopped");
+      return errno == ENOTSUP ? EXIT_SUCCESS : EXIT_FAILURE;
+    case 0:
+      if (info.si_signo == 0)
+	break;
+      if (info.si_signo == SIGCHLD)
+	error (0, 0, "waitid WNOHANG on stopped status %d\n", info.si_status);
+      else
+	error (0, 0, "waitid WNOHANG on stopped signal %d\n", info.si_signo);
+      return EXIT_FAILURE;
+    }
+
+  /* Next the wait that should succeed right away.  */
+  info.si_signo = 0;		/* A successful call sets it to SIGCHLD.  */
+  info.si_pid = -1;
+  info.si_status = -1;
+  fail = waitid (P_PID, pid, &info, WSTOPPED|WNOHANG);
+  switch (fail)
+    {
+    default:
+      error (0, 0, "waitid WSTOPPED|WNOHANG returned bogus value %d\n", fail);
+      return EXIT_FAILURE;
+    case -1:
+      error (0, errno, "waitid WSTOPPED|WNOHANG on stopped");
+      return errno == ENOTSUP ? EXIT_SUCCESS : EXIT_FAILURE;
+    case 0:
+      if (info.si_signo != SIGCHLD)
+	{
+	  error (0, 0, "waitid WSTOPPED|WNOHANG on stopped signal %d\n",
+		 info.si_signo);
+	  return EXIT_FAILURE;
+	}
+      if (info.si_code != CLD_STOPPED)
+	{
+	  error (0, 0, "waitid WSTOPPED|WNOHANG on stopped code %d\n",
+		 info.si_code);
+	  return EXIT_FAILURE;
+	}
+      if (info.si_status != SIGSTOP)
+	{
+	  error (0, 0, "waitid WSTOPPED|WNOHANG on stopped status %d\n",
+		 info.si_status);
+	  return EXIT_FAILURE;
+	}
+      if (info.si_pid != pid)
+	{
+	  error (0, 0, "waitid WSTOPPED|WNOHANG on stopped pid %d != %d\n",
+		 info.si_pid, pid);
+	  return EXIT_FAILURE;
+	}
+    }
+
+  if (kill (pid, SIGCONT) != 0)
+    {
+      error (0, errno, "kill (%d, SIGCONT)", pid);
+      return EXIT_FAILURE;
+    }
+
+  /* Wait for the child to have continued.  */
+  sleep (2);
+
+#if 0
+  info.si_signo = 0;		/* A successful call sets it to SIGCHLD.  */
+  info.si_pid = -1;
+  info.si_status = -1;
+  fail = waitid (P_PID, pid, &info, WCONTINUED);
+  switch (fail)
+    {
+    default:
+      error (0, 0, "waitid WCONTINUED returned bogus value %d\n", fail);
+      return EXIT_FAILURE;
+    case -1:
+      error (0, errno, "waitid WCONTINUED on continued");
+      return errno == ENOTSUP ? EXIT_SUCCESS : EXIT_FAILURE;
+    case 0:
+      if (info.si_signo != SIGCHLD)
+	{
+	  error (0, 0, "waitid WCONTINUED on continued signal %d\n",
+		 info.si_signo);
+	  return EXIT_FAILURE;
+	}
+      if (info.si_code != CLD_CONTINUED)
+	{
+	  error (0, 0, "waitid WCONTINUED on continued code %d\n",
+		 info.si_code);
+	  return EXIT_FAILURE;
+	}
+      if (info.si_status != SIGCONT)
+	{
+	  error (0, 0, "waitid WCONTINUED on continued status %d\n",
+		 info.si_status);
+	  return EXIT_FAILURE;
+	}
+      if (info.si_pid != pid)
+	{
+	  error (0, 0, "waitid WCONTINUED on continued pid %d != %d\n",
+		 info.si_pid, pid);
+	  return EXIT_FAILURE;
+	}
+    }
+#endif
+
+  /* Die, child, die!  */
+  if (kill (pid, SIGKILL) != 0)
+    {
+      error (0, errno, "kill (%d, SIGKILL)", pid);
+      return EXIT_FAILURE;
+    }
+
+#ifdef WNOWAIT
+  info.si_signo = 0;		/* A successful call sets it to SIGCHLD.  */
+  info.si_pid = -1;
+  info.si_status = -1;
+  fail = waitid (P_PID, pid, &info, WEXITED|WNOWAIT);
+  switch (fail)
+    {
+    default:
+      error (0, 0, "waitid WNOWAIT returned bogus value %d\n", fail);
+      return EXIT_FAILURE;
+    case -1:
+      error (0, errno, "waitid WNOWAIT on killed");
+      return errno == ENOTSUP ? EXIT_SUCCESS : EXIT_FAILURE;
+    case 0:
+      if (info.si_signo != SIGCHLD)
+	{
+	  error (0, 0, "waitid WNOWAIT on killed signal %d\n",
+		 info.si_signo);
+	  return EXIT_FAILURE;
+	}
+      if (info.si_code != CLD_KILLED)
+	{
+	  error (0, 0, "waitid WNOWAIT on killed code %d\n",
+		 info.si_code);
+	  return EXIT_FAILURE;
+	}
+      if (info.si_status != SIGKILL)
+	{
+	  error (0, 0, "waitid WNOWAIT on killed status %d\n",
+		 info.si_status);
+	  return EXIT_FAILURE;
+	}
+      if (info.si_pid != pid)
+	{
+	  error (0, 0, "waitid WNOWAIT on killed pid %d != %d\n",
+		 info.si_pid, pid);
+	  return EXIT_FAILURE;
+	}
+    }
+#else
+  /* Allow enough time to be sure the child died; we didn't synchronize.  */
+  sleep (2);
+#endif
+
+  info.si_signo = 0;		/* A successful call sets it to SIGCHLD.  */
+  info.si_pid = -1;
+  info.si_status = -1;
+  fail = waitid (P_PID, pid, &info, WEXITED|WNOHANG);
+  switch (fail)
+    {
+    default:
+      error (0, 0, "waitid WNOHANG returned bogus value %d\n", fail);
+      return EXIT_FAILURE;
+    case -1:
+      error (0, errno, "waitid WNOHANG on killed");
+      return EXIT_FAILURE;
+    case 0:
+      if (info.si_signo != SIGCHLD)
+	{
+	  error (0, 0, "waitid WNOHANG on killed signal %d\n",
+		 info.si_signo);
+	  return EXIT_FAILURE;
+	}
+      if (info.si_code != CLD_KILLED)
+	{
+	  error (0, 0, "waitid WNOHANG on killed code %d\n",
+		 info.si_code);
+	  return EXIT_FAILURE;
+	}
+      if (info.si_status != SIGKILL)
+	{
+	  error (0, 0, "waitid WNOHANG on killed status %d\n",
+		 info.si_status);
+	  return EXIT_FAILURE;
+	}
+      if (info.si_pid != pid)
+	{
+	  error (0, 0, "waitid WNOHANG on killed pid %d != %d\n",
+		 info.si_pid, pid);
+	  return EXIT_FAILURE;
+	}
+    }
+
+  fail = waitid (P_PID, pid, &info, WEXITED);
+  if (fail == -1)
+    {
+      if (errno != ECHILD)
+	{
+	  error (0, errno, "waitid WEXITED on killed");
+	  return EXIT_FAILURE;
+	}
+    }
+  else
+    {
+      error (0, 0, "waitid WEXITED returned bogus value %d\n", fail);
+      return EXIT_FAILURE;
+    }
+
+  return EXIT_SUCCESS;
+}
+
+#include "../test-skeleton.c"