From 58fbf5d6aa35e3d66f2c32c61d2f38824a990e85 Mon Sep 17 00:00:00 2001
From: otto <otto@openbsd.org>
Date: Sat, 20 Feb 2021 19:05:28 +0000
Subject: [PATCH] A regress test to test concurrent exception handling in
 threads

---
 regress/misc/exceptions/threads/Makefile      | 11 ++++
 regress/misc/exceptions/threads/exceptions.cc | 52 +++++++++++++++++++
 2 files changed, 63 insertions(+)
 create mode 100644 regress/misc/exceptions/threads/Makefile
 create mode 100644 regress/misc/exceptions/threads/exceptions.cc

diff --git a/regress/misc/exceptions/threads/Makefile b/regress/misc/exceptions/threads/Makefile
new file mode 100644
index 00000000000..722725b4f19
--- /dev/null
+++ b/regress/misc/exceptions/threads/Makefile
@@ -0,0 +1,11 @@
+#	$OpenBSD: Makefile,v 1.1 2021/02/20 19:05:28 otto Exp $
+
+PROG=	exceptions
+SRCS=	exceptions.cc
+
+REGRESS_TARGETS=runs
+
+runs: exceptions
+	for i in $$(jot 100); do exceptions; done
+
+.include <bsd.regress.mk>
diff --git a/regress/misc/exceptions/threads/exceptions.cc b/regress/misc/exceptions/threads/exceptions.cc
new file mode 100644
index 00000000000..a29ac883d2a
--- /dev/null
+++ b/regress/misc/exceptions/threads/exceptions.cc
@@ -0,0 +1,52 @@
+/*	$OpenBSD: exceptions.cc,v 1.1 2021/02/20 19:05:28 otto Exp $	*/
+/*
+ *	Written by Otto Moerbeek <otto@drijf.net> 2021 Public Domain
+ */
+
+#include <string>
+#include <iostream>
+#include <err.h>
+#include <pthread.h>
+
+void
+a()
+{
+	try {
+		throw std::string("foo");
+        }
+	catch (const std::string& ex) {
+		if (ex != "foo")
+			errx(1, "foo");
+	}
+}
+
+void
+b()
+{
+	a();
+}
+
+void *
+c(void *)
+{
+	b();
+	return nullptr;
+}
+
+#define N 100
+
+int
+main()
+{
+	int i;
+	pthread_t p[N];
+
+	for (i = 0; i < N; i++)
+		if (pthread_create(&p[i], nullptr, c, nullptr) != 0)
+			err(1, nullptr);
+	for (i = 0; i < N; i++)
+		if (pthread_join(p[i], nullptr) != 0)
+			err(1, nullptr);
+	std::cout << ".";
+	return 0;
+}
-- 
2.20.1