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qemu/python-qmp-switch-qmp-shell-to-AQMP.patch
2022-05-27 12:52:53 +00:00

122 lines
4.1 KiB
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From: John Snow <jsnow@redhat.com>
Date: Mon, 10 Jan 2022 18:28:53 -0500
Subject: python/qmp: switch qmp-shell to AQMP
Git-commit: f3efd12930f34b9724e15d8fd2ff56a97b67219d
We have a replacement for async QMP, but it doesn't have feature parity
yet. For now, then, port the old tool onto the new backend.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Li Zhang <lizhang@suse.de>
---
python/qemu/aqmp/legacy.py | 3 +++
python/qemu/qmp/qmp_shell.py | 31 +++++++++++++++++--------------
2 files changed, 20 insertions(+), 14 deletions(-)
diff --git a/python/qemu/aqmp/legacy.py b/python/qemu/aqmp/legacy.py
index 27df22818a76190e872f08c0852e..0890f95b16875ecb815ed4560bc7 100644
--- a/python/qemu/aqmp/legacy.py
+++ b/python/qemu/aqmp/legacy.py
@@ -22,6 +22,9 @@ from .protocol import Runstate, SocketAddrT
from .qmp_client import QMPClient
+# (Temporarily) Re-export QMPBadPortError
+QMPBadPortError = qemu.qmp.QMPBadPortError
+
#: QMPMessage is an entire QMP message of any kind.
QMPMessage = Dict[str, Any]
diff --git a/python/qemu/qmp/qmp_shell.py b/python/qemu/qmp/qmp_shell.py
index e7d7eb18f19cae7ac185b333013e..d11bf54b00e5d56616ae57be0006 100644
--- a/python/qemu/qmp/qmp_shell.py
+++ b/python/qemu/qmp/qmp_shell.py
@@ -95,8 +95,13 @@ from typing import (
Sequence,
)
-from qemu import qmp
-from qemu.qmp import QMPMessage
+from qemu.aqmp import ConnectError, QMPError, SocketAddrT
+from qemu.aqmp.legacy import (
+ QEMUMonitorProtocol,
+ QMPBadPortError,
+ QMPMessage,
+ QMPObject,
+)
LOG = logging.getLogger(__name__)
@@ -125,7 +130,7 @@ class QMPCompleter:
return None
-class QMPShellError(qmp.QMPError):
+class QMPShellError(QMPError):
"""
QMP Shell Base error class.
"""
@@ -153,7 +158,7 @@ class FuzzyJSON(ast.NodeTransformer):
return node
-class QMPShell(qmp.QEMUMonitorProtocol):
+class QMPShell(QEMUMonitorProtocol):
"""
QMPShell provides a basic readline-based QMP shell.
@@ -161,7 +166,7 @@ class QMPShell(qmp.QEMUMonitorProtocol):
:param pretty: Pretty-print QMP messages.
:param verbose: Echo outgoing QMP messages to console.
"""
- def __init__(self, address: qmp.SocketAddrT,
+ def __init__(self, address: SocketAddrT,
pretty: bool = False, verbose: bool = False):
super().__init__(address)
self._greeting: Optional[QMPMessage] = None
@@ -237,7 +242,7 @@ class QMPShell(qmp.QEMUMonitorProtocol):
def _cli_expr(self,
tokens: Sequence[str],
- parent: qmp.QMPObject) -> None:
+ parent: QMPObject) -> None:
for arg in tokens:
(key, sep, val) = arg.partition('=')
if sep != '=':
@@ -403,7 +408,7 @@ class HMPShell(QMPShell):
:param pretty: Pretty-print QMP messages.
:param verbose: Echo outgoing QMP messages to console.
"""
- def __init__(self, address: qmp.SocketAddrT,
+ def __init__(self, address: SocketAddrT,
pretty: bool = False, verbose: bool = False):
super().__init__(address, pretty, verbose)
self._cpu_index = 0
@@ -512,19 +517,17 @@ def main() -> None:
try:
address = shell_class.parse_address(args.qmp_server)
- except qmp.QMPBadPortError:
+ except QMPBadPortError:
parser.error(f"Bad port number: {args.qmp_server}")
return # pycharm doesn't know error() is noreturn
with shell_class(address, args.pretty, args.verbose) as qemu:
try:
qemu.connect(negotiate=not args.skip_negotiation)
- except qmp.QMPConnectError:
- die("Didn't get QMP greeting message")
- except qmp.QMPCapabilitiesError:
- die("Couldn't negotiate capabilities")
- except OSError as err:
- die(f"Couldn't connect to {args.qmp_server}: {err!s}")
+ except ConnectError as err:
+ if isinstance(err.exc, OSError):
+ die(f"Couldn't connect to {args.qmp_server}: {err!s}")
+ die(str(err))
for _ in qemu.repl():
pass