Regression tests for libc_r (pthreads) library.

Thanks to pval@ for resolving the license stuff.

2 files changed, 270 insertions, 0 deletions

diff --git a/regress/lib/libpthread/sigwait/Makefile b/regress/lib/libpthread/sigwait/Makefile
new file mode 100644
index 00000000000..52117d781b0
--- /dev/null
+++ b/regress/lib/libpthread/sigwait/Makefile
@@ -0,0 +1,6 @@
+# $OpenBSD: Makefile,v 1.1 2001/08/15 14:37:13 fgsch Exp $
+
+PROG=	sigwait
+SRCS=	sigwait.c
+
+.include <bsd.prog.mk>
diff --git a/regress/lib/libpthread/sigwait/sigwait.c b/regress/lib/libpthread/sigwait/sigwait.c
new file mode 100644
index 00000000000..a166eaf2a1e
--- /dev/null
+++ b/regress/lib/libpthread/sigwait/sigwait.c
@@ -0,0 +1,264 @@
+/*	$OpenBSD: sigwait.c,v 1.1 2001/08/15 14:37:16 fgsch Exp $	*/
+/*
+ * Copyright (c) 1998 Daniel M. Eischen <eischen@vigrid.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Daniel M. Eischen.
+ * 4. Neither the name of the author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY DANIEL M. EISCHEN AND CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <errno.h>
+#include <pthread.h>
+#include <signal.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <pthread_np.h>
+#include "test.h"
+
+static int		sigcounts[NSIG + 1];
+static sigset_t		wait_mask;
+static pthread_mutex_t	waiter_mutex;
+
+
+static void *
+sigwaiter (void *arg)
+{
+	int signo;
+	sigset_t mask;
+
+	SET_NAME("sigwaiter");
+
+	/* Block SIGHUP */
+	sigemptyset (&mask);
+	sigaddset (&mask, SIGHUP);
+	CHECKe(sigprocmask (SIG_BLOCK, &mask, NULL));
+
+	while (sigcounts[SIGINT] == 0) {
+		printf("Sigwait waiting (thread %p)\n", pthread_self());
+		CHECKe(sigwait (&wait_mask, &signo));
+		sigcounts[signo]++;
+		printf ("Sigwait caught signal %d (%s)\n", signo, 
+		    strsignal(signo));
+
+		/* Allow the main thread to prevent the sigwait. */
+		CHECKr(pthread_mutex_lock (&waiter_mutex));
+		CHECKr(pthread_mutex_unlock (&waiter_mutex));
+	}
+
+	return (arg);
+}
+
+
+static void
+sighandler (int signo)
+{
+	printf ("  -> Signal handler caught signal %d (%s) in thread %p\n",
+	    signo, strsignal(signo), pthread_self());
+
+	if ((signo >= 0) && (signo <= NSIG))
+		sigcounts[signo]++;
+}
+
+int main (int argc, char *argv[])
+{
+	pthread_mutexattr_t mattr;
+	pthread_attr_t	pattr;
+	pthread_t	tid;
+	struct sigaction act;
+
+	/* Initialize our signal counts. */
+	memset ((void *) sigcounts, 0, NSIG * sizeof (int));
+
+	/* Setupt our wait mask. */
+	sigemptyset (&wait_mask);		/* Default action	*/
+	sigaddset (&wait_mask, SIGHUP);		/* terminate		*/
+	sigaddset (&wait_mask, SIGINT);		/* terminate		*/
+	sigaddset (&wait_mask, SIGQUIT);	/* create core image	*/
+	sigaddset (&wait_mask, SIGURG);		/* ignore		*/
+	sigaddset (&wait_mask, SIGIO);		/* ignore		*/
+	sigaddset (&wait_mask, SIGUSR1);	/* terminate		*/
+
+	/* Ignore signals SIGHUP and SIGIO. */
+	sigemptyset (&act.sa_mask);
+	sigaddset (&act.sa_mask, SIGHUP);
+	sigaddset (&act.sa_mask, SIGIO);
+	act.sa_handler = SIG_IGN;
+	act.sa_flags = 0;
+	CHECKe(sigaction (SIGHUP, &act, NULL));
+	CHECKe(sigaction (SIGIO, &act, NULL));
+
+	/* Install a signal handler for SIGURG */
+	sigemptyset (&act.sa_mask);
+	sigaddset (&act.sa_mask, SIGURG);
+	act.sa_handler = sighandler;
+	act.sa_flags = SA_RESTART;
+	CHECKe(sigaction (SIGURG, &act, NULL));
+
+	/* Install a signal handler for SIGXCPU */
+	sigemptyset (&act.sa_mask);
+	sigaddset (&act.sa_mask, SIGXCPU);
+	CHECKe(sigaction (SIGXCPU, &act, NULL));
+
+	/*
+	 * Initialize the thread attribute.
+	 */
+	CHECKr(pthread_attr_init (&pattr));
+	CHECKr(pthread_attr_setdetachstate (&pattr, PTHREAD_CREATE_JOINABLE));
+
+	/*
+	 * Initialize and create a mutex.
+	 */
+	CHECKr(pthread_mutexattr_init (&mattr));
+	CHECKr(pthread_mutex_init (&waiter_mutex, &mattr));
+
+	/*
+	 * Create the sigwaiter thread.
+	 */
+	CHECKr(pthread_create (&tid, &pattr, sigwaiter, NULL));
+
+	/*
+	 * Verify that an ignored signal doesn't cause a wakeup.
+	 * We don't have a handler installed for SIGIO.
+	 */
+	CHECKr(pthread_kill (tid, SIGIO));
+	sleep (1);
+	CHECKe(kill(getpid(), SIGIO));
+	sleep (1);
+	/* sigwait should not wake up for ignored signal SIGIO */
+	ASSERT(sigcounts[SIGIO] == 0);
+
+	/*
+	 * Verify that a signal with a default action of ignore, for
+	 * which we have a signal handler installed, will release a sigwait.
+	 */
+	CHECKr(pthread_kill (tid, SIGURG));
+	sleep (1);
+	CHECKe(kill(getpid(), SIGURG));
+	sleep (1);
+	/* sigwait should wake up for SIGURG */
+	ASSERT(sigcounts[SIGURG] == 2);
+
+	/*
+	 * Verify that a signal with a default action that terminates
+	 * the process will release a sigwait.
+	 */
+	CHECKr(pthread_kill (tid, SIGUSR1));
+	sleep (1);
+	CHECKe(kill(getpid(), SIGUSR1));
+	sleep (1);
+	if (sigcounts[SIGUSR1] != 2)
+		printf ("FAIL: sigwait doesn't wake up for SIGUSR1.\n");
+
+	/*
+	 * Verify that if we install a signal handler for a previously
+	 * ignored signal, an occurrence of this signal will release
+	 * the (already waiting) sigwait.
+	 */
+
+	/* Install a signal handler for SIGHUP. */
+	sigemptyset (&act.sa_mask);
+	sigaddset (&act.sa_mask, SIGHUP);
+	act.sa_handler = sighandler;
+	act.sa_flags = SA_RESTART;
+	CHECKe(sigaction (SIGHUP, &act, NULL));
+
+	/* Sending SIGHUP should release the sigwait. */
+	CHECKe(kill(getpid(), SIGHUP));
+	sleep (1);
+	CHECKr(pthread_kill (tid, SIGHUP));
+	sleep (1);
+	/* sigwait should wake up for SIGHUP */
+	ASSERT(sigcounts[SIGHUP] == 2);
+
+	/*
+	 * Verify that a pending signal in the waiters mask will
+	 * cause sigwait to return the pending signal.  We do this
+	 * by taking the waiters mutex and signaling the waiter to
+	 * release him from the sigwait.  The waiter will block
+	 * on taking the mutex, and we can then send the waiter a
+	 * signal which should be added to his pending signals.
+	 * The next time the waiter does a sigwait, he should
+	 * return with the pending signal.
+	 */
+	sigcounts[SIGHUP] = 0;
+ 	CHECKr(pthread_mutex_lock (&waiter_mutex));
+	/* Release the waiter from sigwait. */
+	CHECKe(kill(getpid(), SIGHUP));
+	sleep (1);
+	/* sigwait should wake up for SIGHUP */
+	ASSERT(sigcounts[SIGHUP] == 1);
+	/*
+	 * Add SIGHUP to all threads pending signals.  Since there is
+	 * a signal handler installed for SIGHUP and this signal is
+	 * blocked from the waiter thread and unblocked in the main
+	 * thread, the signal handler should be called once for SIGHUP.
+	 */
+	CHECKe(kill(getpid(), SIGHUP));
+	/* Release the waiter thread and allow him to run. */
+	CHECKr(pthread_mutex_unlock (&waiter_mutex));
+	sleep (1);
+	/* sigwait should return for pending SIGHUP */
+	ASSERT(sigcounts[SIGHUP] == 3);
+
+	/*
+	 * Repeat the above test using pthread_kill and SIGUSR1
+	 */
+	sigcounts[SIGUSR1] = 0;
+ 	CHECKr(pthread_mutex_lock (&waiter_mutex));
+	/* Release the waiter from sigwait. */
+	CHECKr(pthread_kill (tid, SIGUSR1));
+	sleep (1);
+	/* sigwait should wake up for SIGUSR1 */
+	ASSERT(sigcounts[SIGUSR1] == 1);
+	/* Add SIGHUP to the waiters pending signals. */
+	CHECKr(pthread_kill (tid, SIGUSR1));
+	/* Release the waiter thread and allow him to run. */
+	CHECKe(pthread_mutex_unlock (&waiter_mutex));
+	sleep (1);
+	/* sigwait should return for pending SIGUSR1 */
+	ASSERT(sigcounts[SIGUSR1] == 2);
+
+#if 0
+	/*
+	 * Verify that we can still kill the process for a signal
+	 * not being waited on by sigwait.
+	 */
+	CHECKe(kill(getpid(), SIGPIPE));
+	PANIC("SIGPIPE did not terminate process");
+
+	/*
+	 * Wait for the thread to finish.
+	 */
+	CHECKr(pthread_join (tid, NULL));
+#endif
+
+	SUCCEED;
+}