libqtest: add qmp_eventwait

Allow the user to poll until a desired interrupt occurs.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1426018503-821-4-git-send-email-jsnow@redhat.com

1 files changed, 20 insertions, 0 deletions

diff --git a/tests/libqtest.h b/tests/libqtest.h
index 03469b8781..30009ca5c9 100644
--- a/tests/libqtest.h
+++ b/tests/libqtest.h
@@ -92,6 +92,15 @@ QDict *qtest_qmpv(QTestState *s, const char *fmt, va_list ap);
 QDict *qtest_qmp_receive(QTestState *s);
 
 /**
+ * qtest_qmp_eventwait:
+ * @s: #QTestState instance to operate on.
+ * @s: #event event to wait for.
+ *
+ * Continuosly polls for QMP responses until it receives the desired event.
+ */
+void qtest_qmp_eventwait(QTestState *s, const char *event);
+
+/**
  * qtest_get_irq:
  * @s: #QTestState instance to operate on.
  * @num: Interrupt to observe.
@@ -429,6 +438,17 @@ static inline QDict *qmp_receive(void)
 }
 
 /**
+ * qmp_eventwait:
+ * @s: #event event to wait for.
+ *
+ * Continuosly polls for QMP responses until it receives the desired event.
+ */
+static inline void qmp_eventwait(const char *event)
+{
+    return qtest_qmp_eventwait(global_qtest, event);
+}
+
+/**
  * get_irq:
  * @num: Interrupt to observe.
  *