[PATCH V8 38/39] python/machine: add QEMUMachine accessors

[Steve Sistare]

Provide full_args() to return all command-line arguments used to start a
vm, some of which are not otherwise visible to QEMUMachine clients.  This
is needed by the cpr test, which must start a vm, then pass all qemu
command-line arguments to the cpr-exec monitor call.

Provide reopen_qmp_connection() to reopen a closed monitor connection.
This is needed by cpr, because qemu-exec closes the monitor socket.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
---
 python/qemu/machine/machine.py | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/python/qemu/machine/machine.py b/python/qemu/machine/machine.py
index 37191f4..60b934d 100644
--- a/python/qemu/machine/machine.py
+++ b/python/qemu/machine/machine.py
@@ -332,6 +332,11 @@ def args(self) -> List[str]:
         """Returns the list of arguments given to the QEMU binary."""
         return self._args
 
+    @property
+    def full_args(self) -> List[str]:
+        """Returns the full list of arguments used to launch QEMU."""
+        return list(self._qemu_full_args)
+
     def _pre_launch(self) -> None:
         if self._console_set:
             self._remove_files.append(self._console_address)
@@ -486,6 +491,15 @@ def _close_qmp_connection(self) -> None:
         finally:
             self._qmp_connection = None
 
+    def reopen_qmp_connection(self):
+        self._close_qmp_connection()
+        self._qmp_connection = QEMUMonitorProtocol(
+            self._monitor_address,
+            server=True,
+            nickname=self._name
+        )
+        self._qmp.accept(self._qmp_timer)
+
     def _early_cleanup(self) -> None:
         """
         Perform any cleanup that needs to happen before the VM exits.
-- 
1.8.3.1