libqtest: Introduce qtest_qmpv() and convert remaining macro

In order to convert qmp() macro to an inline function, expose a
qtest_qmpv() function, reused by qtest_qmp().

We can't apply GCC_FMT_ATTR() since fdc-test is using zero-length format
strings, which would result in warnings treated as errors.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Message-id: 1361051043-27944-3-git-send-email-afaerber@suse.de
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 19 insertions, 1 deletions

diff --git a/tests/libqtest.h b/tests/libqtest.h
index a111c9c..f5c6e21 100644
--- a/tests/libqtest.h
+++ b/tests/libqtest.h
@@ -17,6 +17,7 @@
 
 #include <stdint.h>
 #include <stdbool.h>
+#include <stdarg.h>
 #include <sys/types.h>
 
 typedef struct QTestState QTestState;
@@ -49,6 +50,16 @@ void qtest_quit(QTestState *s);
 void qtest_qmp(QTestState *s, const char *fmt, ...);
 
 /**
+ * qtest_qmpv:
+ * @s: #QTestState instance to operate on.
+ * @fmt: QMP message to send to QEMU
+ * @ap: QMP message arguments
+ *
+ * Sends a QMP message to QEMU.
+ */
+void qtest_qmpv(QTestState *s, const char *fmt, va_list ap);
+
+/**
  * qtest_get_irq:
  * @s: #QTestState instance to operate on.
  * @num: Interrupt to observe.
@@ -227,7 +238,14 @@ static inline QTestState *qtest_start(const char *args)
  *
  * Sends a QMP message to QEMU
  */
-#define qmp(fmt, ...) qtest_qmp(global_qtest, fmt, ## __VA_ARGS__)
+static inline void qmp(const char *fmt, ...)
+{
+    va_list ap;
+
+    va_start(ap, fmt);
+    qtest_qmpv(global_qtest, fmt, ap);
+    va_end(ap);
+}
 
 /**
  * get_irq: