On 5/14/20 7:53 AM, John Snow wrote:
When I initially split this out, I considered this more of a machine
error than a QMP protocol error, but I think that's misguided.
Move this back to qmp.py and name it QMPResponseError. Convert
qmp.command() to use this exception type.
Signed-off-by: John Snow <js...@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <phi...@redhat.com>
---
python/qemu/lib/machine.py | 15 +--------------
python/qemu/lib/qmp.py | 17 +++++++++++++++--
scripts/render_block_graph.py | 4 ++--
3 files changed, 18 insertions(+), 18 deletions(-)
diff --git a/python/qemu/lib/machine.py b/python/qemu/lib/machine.py
index 2f94c851ed..c31bf7cabb 100644
--- a/python/qemu/lib/machine.py
+++ b/python/qemu/lib/machine.py
@@ -48,19 +48,6 @@ class QEMUMachineAddDeviceError(QEMUMachineError):
"""
-class MonitorResponseError(qmp.QMPError):
- """
- Represents erroneous QMP monitor reply
- """
- def __init__(self, reply):
- try:
- desc = reply["error"]["desc"]
- except KeyError:
- desc = reply
- super().__init__(desc)
- self.reply = reply
-
-
class QEMUMachine:
"""
A QEMU VM
@@ -433,7 +420,7 @@ def command(self, cmd, conv_keys=True, **args):
if reply is None:
raise qmp.QMPError("Monitor is closed")
if "error" in reply:
- raise MonitorResponseError(reply)
+ raise qmp.QMPResponseError(reply)
return reply["return"]
def get_qmp_event(self, wait=False):
diff --git a/python/qemu/lib/qmp.py b/python/qemu/lib/qmp.py
index 911da59888..82f86b4e45 100644
--- a/python/qemu/lib/qmp.py
+++ b/python/qemu/lib/qmp.py
@@ -61,6 +61,19 @@ class QMPTimeoutError(QMPError):
"""
+class QMPResponseError(QMPError):
+ """
+ Represents erroneous QMP monitor reply
+ """
+ def __init__(self, reply: QMPMessage):
+ try:
+ desc = reply['error']['desc']
+ except KeyError:
+ desc = reply
+ super().__init__(desc)
+ self.reply = reply
+
+
class QEMUMonitorProtocol:
"""
Provide an API to connect to QEMU via QEMU Monitor Protocol (QMP) and then
@@ -250,8 +263,8 @@ def command(self, cmd, **kwds):
Build and send a QMP command to the monitor, report errors if any
"""
ret = self.cmd(cmd, kwds)
- if "error" in ret:
- raise Exception(ret['error']['desc'])
+ if 'error' in ret:
+ raise QMPResponseError(ret)
return ret['return']
def pull_event(self, wait=False):
diff --git a/scripts/render_block_graph.py b/scripts/render_block_graph.py
index 8048d9fbbe..332ab49a91 100755
--- a/scripts/render_block_graph.py
+++ b/scripts/render_block_graph.py
@@ -26,7 +26,7 @@
sys.path.append(os.path.join(os.path.dirname(__file__), '..', 'python'))
from qemu.lib import QEMUMonitorProtocol
-from qemu.lib.machine import MonitorResponseError
+from qemu.lib.qmp import QMPResponseError
def perm(arr):
@@ -103,7 +103,7 @@ def command(self, cmd):
reply = json.loads(subprocess.check_output(ar))
if 'error' in reply:
- raise MonitorResponseError(reply)
+ raise QEMUResponseError(reply)
return reply['return']
