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authorSalvatore Cro <salvatore.cro@st.com>2010-09-10 10:55:43 +0200
committerCarmelo Amoroso <carmelo.amoroso@st.com>2010-09-15 12:59:45 +0200
commit447c70a5dc04e85f96c2ae477ce851fdfdd8c719 (patch)
tree709d458b5142324d34fface4a89f281f00d0097c /test/nptl/tst-vfork1.c
parenta27dd6924e7964d92b49f4d5ebe2e68cfb2742dd (diff)
tests: Added new nptl tests
tests: Added several nptl tests from glibc 2.10.1 Signed-off-by: Salvatore Cro <salvatore.cro@st.com> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
Diffstat (limited to 'test/nptl/tst-vfork1.c')
-rw-r--r--test/nptl/tst-vfork1.c150
1 files changed, 150 insertions, 0 deletions
diff --git a/test/nptl/tst-vfork1.c b/test/nptl/tst-vfork1.c
new file mode 100644
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+++ b/test/nptl/tst-vfork1.c
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+/* Test for vfork functions.
+ Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
+
+ 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 <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+/* This test relies on non-POSIX functionality since the child
+ processes call write and getpid. */
+static int
+do_test (void)
+{
+ int result = 0;
+ int fd[2];
+
+ if (pipe (fd) == -1)
+ {
+ puts ("pipe failed");
+ return 1;
+ }
+
+ /* First vfork() without previous getpid(). */
+ pid_t p1;
+ if ((p1 = vfork ()) == 0)
+ {
+ pid_t p = getpid ();
+ _exit (TEMP_FAILURE_RETRY (write (fd[1], &p, sizeof (p))) != sizeof (p));
+ }
+ else if (p1 == -1)
+ {
+ puts ("1st vfork failed");
+ result = 1;
+ }
+
+ pid_t p2 = 0;
+ if (TEMP_FAILURE_RETRY (read (fd[0], &p2, sizeof (pid_t))) != sizeof (pid_t))
+ {
+ puts ("1st read failed");
+ result = 1;
+ }
+ int r;
+ if (TEMP_FAILURE_RETRY (waitpid (p1, &r, 0)) != p1)
+ {
+ puts ("1st waitpid failed");
+ result = 1;
+ }
+ else if (r != 0)
+ {
+ puts ("write in 1st child failed");
+ result = 1;
+ }
+
+ /* Main process' ID. */
+ pid_t p0 = getpid ();
+
+ /* vfork() again, but after a getpid() in the main process. */
+ pid_t p3;
+ if ((p3 = vfork ()) == 0)
+ {
+ pid_t p = getpid ();
+ _exit (TEMP_FAILURE_RETRY (write (fd[1], &p, sizeof (p))) != sizeof (p));
+ }
+ else if (p1 == -1)
+ {
+ puts ("2nd vfork failed");
+ result = 1;
+ }
+
+ pid_t p4;
+ if (TEMP_FAILURE_RETRY (read (fd[0], &p4, sizeof (pid_t))) != sizeof (pid_t))
+ {
+ puts ("2nd read failed");
+ result = 1;
+ }
+ if (TEMP_FAILURE_RETRY (waitpid (p3, &r, 0)) != p3)
+ {
+ puts ("2nd waitpid failed");
+ result = 1;
+ }
+ else if (r != 0)
+ {
+ puts ("write in 2nd child failed");
+ result = 1;
+ }
+
+ /* And getpid in the main process again. */
+ pid_t p5 = getpid ();
+
+ /* Analysis of the results. */
+ if (p0 != p5)
+ {
+ printf ("p0(%ld) != p5(%ld)\n", (long int) p0, (long int) p5);
+ result = 1;
+ }
+
+ if (p0 == p1)
+ {
+ printf ("p0(%ld) == p1(%ld)\n", (long int) p0, (long int) p1);
+ result = 1;
+ }
+
+ if (p1 != p2)
+ {
+ printf ("p1(%ld) != p2(%ld)\n", (long int) p1, (long int) p2);
+ result = 1;
+ }
+
+ if (p0 == p3)
+ {
+ printf ("p0(%ld) == p3(%ld)\n", (long int) p0, (long int) p3);
+ result = 1;
+ }
+
+ if (p3 != p4)
+ {
+ printf ("p3(%ld) != p4(%ld)\n", (long int) p3, (long int) p4);
+ result = 1;
+ }
+
+ close (fd[0]);
+ close (fd[1]);
+
+ if (result == 0)
+ puts ("All OK");
+
+ return result;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"