test-coroutine: Regression test for yield bug
This adds a test for reentering a coroutine that previously yielded to a
coroutine that has meanwhile terminated.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
diff --git a/tests/test-coroutine.c b/tests/test-coroutine.c
index 27d1b6f..b552d9f 100644
--- a/tests/test-coroutine.c
+++ b/tests/test-coroutine.c
@@ -13,6 +13,7 @@
#include <glib.h>
#include "block/coroutine.h"
+#include "block/coroutine_int.h"
/*
* Check that qemu_in_coroutine() works
@@ -122,6 +123,30 @@
g_assert_cmpint(i, ==, 5); /* coroutine must yield 5 times */
}
+static void coroutine_fn c2_fn(void *opaque)
+{
+ qemu_coroutine_yield();
+}
+
+static void coroutine_fn c1_fn(void *opaque)
+{
+ Coroutine *c2 = opaque;
+ qemu_coroutine_enter(c2, NULL);
+}
+
+static void test_co_queue(void)
+{
+ Coroutine *c1;
+ Coroutine *c2;
+
+ c1 = qemu_coroutine_create(c1_fn);
+ c2 = qemu_coroutine_create(c2_fn);
+
+ qemu_coroutine_enter(c1, c2);
+ memset(c1, 0xff, sizeof(Coroutine));
+ qemu_coroutine_enter(c2, NULL);
+}
+
/*
* Check that creation, enter, and return work
*/
@@ -343,6 +368,7 @@
int main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
+ g_test_add_func("/basic/co_queue", test_co_queue);
g_test_add_func("/basic/lifecycle", test_lifecycle);
g_test_add_func("/basic/yield", test_yield);
g_test_add_func("/basic/nesting", test_nesting);
