QMP: Fix python helper /wrt long return strings

Remove the arbitrary limitation of 1024 characters per return string and
read complete lines instead. Required for device_show.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/QMP/qmp.py b/QMP/qmp.py
index d9da603bec..4062f84f36 100644
--- a/QMP/qmp.py
+++ b/QMP/qmp.py
@@ -63,10 +63,14 @@ class QEMUMonitorProtocol:
 
     def __json_read(self):
         try:
-            return json.loads(self.sock.recv(1024))
+            while True:
+                line = json.loads(self.sockfile.readline())
+                if not 'event' in line:
+                    return line
         except ValueError:
             return
 
     def __init__(self, filename):
         self.filename = filename
         self.sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
+        self.sockfile = self.sock.makefile()