[PATCH v5 06/16] qemu-iotests: delay QMP socket timers

[Emanuele Giuseppe Esposito]

Attaching gdbserver implies that the qmp socket
should wait indefinitely for an answer from QEMU.

For Timeout class, create a @contextmanager that
switches Timeout with NoTimeout (empty context manager)
so that if --gdb is set, no timeout will be triggered.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
 tests/qemu-iotests/iotests.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
index c86f239d81..d4bfd8f1d6 100644
--- a/tests/qemu-iotests/iotests.py
+++ b/tests/qemu-iotests/iotests.py
@@ -486,6 +486,13 @@ def __exit__(self, exc_type, value, traceback):
     def timeout(self, signum, frame):
         raise Exception(self.errmsg)
 
+@contextmanager
+def NoTimeout():
+    yield
+
+if qemu_gdb:
+    Timeout = NoTimeout
+
 def file_pattern(name):
     return "{0}-{1}".format(os.getpid(), name)
 
@@ -575,7 +582,7 @@ class VM(qtest.QEMUQtestMachine):
 
     def __init__(self, path_suffix=''):
         name = "qemu%s-%d" % (path_suffix, os.getpid())
-        timer = 15.0
+        timer = 15.0 if not qemu_gdb else None
         super().__init__(qemu_prog, qemu_opts, name=name,
                          base_temp_dir=test_dir,
                          socket_scm_helper=socket_scm_helper,
-- 
2.30.2