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authorUlrich Drepper <drepper@redhat.com>2005-09-27 05:45:26 +0000
committerUlrich Drepper <drepper@redhat.com>2005-09-27 05:45:26 +0000
commit7dac9f3d90fc108d2db8e305f6d3d475b6c5b793 (patch)
tree596c71b8a2292d99f8d98ff44997a1ea86881c9c /malloc/tst-mallocfork.c
parent2e79fa3ebcdadd4df5d04aa74aed20213f7021f0 (diff)
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[BZ #838]
* malloc/arena.c (ptmalloc_lock_all): If global lock already taken by the same thread, just bump the counter. (ptmalloc_unlock_all): If counter for recursive locks hasn't reached zero, don't do anything else. * malloc/Makefile (tests): Add tst-mallocfork. * malloc/tst-mallocfork.c: New file.
Diffstat (limited to 'malloc/tst-mallocfork.c')
-rw-r--r--malloc/tst-mallocfork.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/malloc/tst-mallocfork.c b/malloc/tst-mallocfork.c
new file mode 100644
index 0000000..abbc9d8
--- /dev/null
+++ b/malloc/tst-mallocfork.c
@@ -0,0 +1,52 @@
+/* Derived from the test case in
+ http://sourceware.org/bugzilla/show_bug.cgi?id=838. */
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+static void
+sig_handler (int signum)
+{
+ pid_t child = fork ();
+ if (child == 0)
+ exit (0);
+ TEMP_FAILURE_RETRY (waitpid (child, NULL, 0));
+}
+
+static int
+do_test (void)
+{
+ pid_t parent = getpid ();
+
+ struct sigaction action;
+ sigemptyset (&action.sa_mask);
+ action.sa_handler = sig_handler;
+
+ malloc (sizeof (int));
+
+ if (sigaction (SIGALRM, &action, NULL) != 0)
+ {
+ puts ("sigaction failed");
+ return 1;
+ }
+
+ /* Create a child that sends the signal to be caught. */
+ pid_t child = fork ();
+ if (child == 0)
+ {
+ if (kill (parent, SIGALRM) == -1)
+ perror ("kill");
+ exit (0);
+ }
+
+ TEMP_FAILURE_RETRY (waitpid (child, NULL, 0));
+
+ return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"