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authorUlrich Drepper <drepper@redhat.com>2003-02-13 07:14:38 +0000
committerUlrich Drepper <drepper@redhat.com>2003-02-13 07:14:38 +0000
commitdfdd294a2ac05a80908483846feb5343d4aac714 (patch)
treec6c2fdabffcf5e81cdf69dc2f78f8b437be6df5f /nptl/tst-atfork2.c
parent2067577c713671471ec03c52425625d69a19d1b4 (diff)
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Update.
* Makefile: Add rules to build and run tst-atfork2 test. * tst-atfork2.c: New file. * tst-atfork2mod.c: New file. * sysdeps/unix/sysv/linux/unregister-atfork.c (__unregister_atfork): Free the memory allocated for the handlers after removing them from the lists. * sysdeps/unix/sysv/linux/register-atfork.c: Define memeory cleanup function. * tst-atfork1.c (do_test): Wait for the child we forked. Report error in child. * sysdeps/unix/sysv/linux/fork.c (__libc_fork): Fix comment.
Diffstat (limited to 'nptl/tst-atfork2.c')
-rw-r--r--nptl/tst-atfork2.c159
1 files changed, 159 insertions, 0 deletions
diff --git a/nptl/tst-atfork2.c b/nptl/tst-atfork2.c
new file mode 100644
index 0000000..f162f80
--- /dev/null
+++ b/nptl/tst-atfork2.c
@@ -0,0 +1,159 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+ 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 <dlfcn.h>
+#include <errno.h>
+#include <mcheck.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/wait.h>
+
+
+/* Must be exported. */
+int val;
+
+static void
+prepare (void)
+{
+ val *= 2;
+}
+
+static void
+parent (void)
+{
+ val += 4;
+}
+
+static void
+child (void)
+{
+ val += 8;
+}
+
+
+static int
+do_test (void)
+{
+ mtrace ();
+
+ if (pthread_atfork (prepare, parent, child) != 0)
+ {
+ puts ("do_test: atfork failed");
+ exit (1);
+ }
+
+ void *h = dlopen ("tst-atfork2mod.so", RTLD_LAZY);
+ if (h == NULL)
+ {
+ printf ("dlopen failed: %s\n", dlerror ());
+ exit (1);
+ }
+
+ /* First trial of fork. */
+ pid_t pid = fork ();
+ if (pid == -1)
+ {
+ puts ("1st fork failed");
+ exit (1);
+ }
+
+ if (pid == 0)
+ {
+ /* Child. */
+ if (val != 80)
+ {
+ printf ("1st: expected val=%d, got %d\n", 80, val);
+ exit (2);
+ }
+
+ exit (0);
+ }
+
+ /* Parent. */
+ if (val != 24)
+ {
+ printf ("1st: expected val=%d, got %d\n", 24, val);
+ exit (1);
+ }
+
+ int status;
+ if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
+ {
+ puts ("1st waitpid failed");
+ exit (1);
+ }
+
+ if (status != 0)
+ exit (status);
+
+ puts ("unloading now");
+
+ /* Unload the module. */
+ if (dlclose (h) != 0)
+ {
+ puts ("dlclose failed");
+ exit (1);
+ }
+
+ puts ("2nd fork");
+
+ /* Second fork trial. */
+ val = 1;
+ pid = fork ();
+ if (pid == -1)
+ {
+ puts ("2nd fork failed");
+ exit (1);
+ }
+
+ if (pid == 0)
+ {
+ /* Child. */
+ if (val != 10)
+ {
+ printf ("2nd: expected val=%d, got %d\n", 10, val);
+ exit (3);
+ }
+
+ exit (0);
+ }
+
+ /* Parent. */
+ if (val != 6)
+ {
+ printf ("2nd: expected val=%d, got %d\n", 6, val);
+ exit (1);
+ }
+
+ if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
+ {
+ puts ("2nd waitpid failed");
+ exit (1);
+ }
+
+ if (status != 0)
+ exit (status);
+
+ return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"