[Qemu-devel] [PATCH 03/12] qtest: return string from QMP commands

[Anthony Liguori <aliguori@us.ibm.com>]

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
---
 tests/libqtest.c | 16 +++++++++++++---
 tests/libqtest.h | 14 +++++++++++---
 2 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/tests/libqtest.c b/tests/libqtest.c
index 81107cf..235ec62 100644
--- a/tests/libqtest.c
+++ b/tests/libqtest.c
@@ -287,10 +287,13 @@ redo:
     return words;
 }
 
-void qtest_qmpv(QTestState *s, const char *fmt, va_list ap)
+char *qtest_qmpv(QTestState *s, const char *fmt, va_list ap)
 {
     bool has_reply = false;
     int nesting = 0;
+    GString *ret;
+
+    ret = g_string_new("");
 
     /* Send QMP request */
     socket_sendf(s->qmp_fd, fmt, ap);
@@ -319,16 +322,23 @@ void qtest_qmpv(QTestState *s, const char *fmt, va_list ap)
             nesting--;
             break;
         }
+
+        g_string_append_c(ret, c);
     }
+
+    return g_string_free(ret, FALSE);
 }
 
-void qtest_qmp(QTestState *s, const char *fmt, ...)
+char *qtest_qmp(QTestState *s, const char *fmt, ...)
 {
     va_list ap;
+    char *ret;
 
     va_start(ap, fmt);
-    qtest_qmpv(s, fmt, ap);
+    ret = qtest_qmpv(s, fmt, ap);
     va_end(ap);
+
+    return ret;
 }
 
 const char *qtest_get_arch(void)
diff --git a/tests/libqtest.h b/tests/libqtest.h
index 592f035..5cdcae7 100644
--- a/tests/libqtest.h
+++ b/tests/libqtest.h
@@ -21,6 +21,7 @@
 #include <stdbool.h>
 #include <stdarg.h>
 #include <sys/types.h>
+#include <glib.h>
 
 typedef struct QTestState QTestState;
 
@@ -48,8 +49,10 @@ void qtest_quit(QTestState *s);
  * @fmt...: QMP message to send to qemu
  *
  * Sends a QMP message to QEMU
+ *
+ * Returns: the result of the QMP command
  */
-void qtest_qmp(QTestState *s, const char *fmt, ...);
+char *qtest_qmp(QTestState *s, const char *fmt, ...);
 
 /**
  * qtest_qmpv:
@@ -58,8 +61,10 @@ void qtest_qmp(QTestState *s, const char *fmt, ...);
  * @ap: QMP message arguments
  *
  * Sends a QMP message to QEMU.
+ *
+ * Returns: the result of the QMP command
  */
-void qtest_qmpv(QTestState *s, const char *fmt, va_list ap);
+char *qtest_qmpv(QTestState *s, const char *fmt, va_list ap);
 
 /**
  * qtest_get_irq:
@@ -340,10 +345,13 @@ static inline QTestState *qtest_start(const char *args)
 static inline void qmp(const char *fmt, ...)
 {
     va_list ap;
+    char *ret;
 
     va_start(ap, fmt);
-    qtest_qmpv(global_qtest, fmt, ap);
+    ret = qtest_qmpv(global_qtest, fmt, ap);
     va_end(ap);
+
+    g_free(ret);
 }
 
 /**
-- 
1.8.0