On 06/28/2010 10:45 AM, Feng Yang wrote:
> This function allow user send qmp command with parameters.
> e.g. balloon value=1073741824
> Also log command to debug.
>
> Signed-off-by: Feng Yang <[email protected]>
> ---
> client/tests/kvm/kvm_monitor.py | 32 ++++++++++++++++++++++++--------
> 1 files changed, 24 insertions(+), 8 deletions(-)
>
> diff --git a/client/tests/kvm/kvm_monitor.py b/client/tests/kvm/kvm_monitor.py
> index 8440835..af9ff21 100644
> --- a/client/tests/kvm/kvm_monitor.py
> +++ b/client/tests/kvm/kvm_monitor.py
> @@ -188,6 +188,7 @@ class HumanMonitor(Monitor):
>
> try:
> try:
> + logging.debug("Send command: %s" % command)
> self._socket.sendall(command + "\n")
> except socket.error:
> raise MonitorSendError("Could not send monitor command '%s'"
> %
> @@ -258,9 +259,8 @@ class HumanMonitor(Monitor):
>
> def cmd(self, command, timeout=20):
> """
> - Send a simple command with no parameters and return its output.
> - Should only be used for commands that take no parameters and are
> - implemented under the same name for both the human and QMP monitors.
> + Send a simple command with/without parameters and return its output.
> + Implemented under the same name for both the human and QMP monitors.
>
> @param command: Command to send
> @param timeout: Time duration to wait for (qemu) prompt after command
> @@ -486,6 +486,7 @@ class QMPMonitor(Monitor):
> try:
> cmdobj = self._build_cmd(cmd, args, id)
> try:
> + logging.debug("Send command: %s" % cmdobj)
> self._socket.sendall(json.dumps(cmdobj) + "\n")
> except socket.error:
> raise MonitorSendError("Could not send QMP command '%s'" %
> cmd)
> @@ -601,11 +602,13 @@ class QMPMonitor(Monitor):
> # Note: all of the following functions raise exceptions in a similar
> manner
> # to cmd() and _get_command_output().
>
> - def cmd(self, command, timeout=20):
> + def cmd(self, cmdline, timeout=20):
> """
> - Send a simple command with no parameters and return its output.
> - Should only be used for commands that take no parameters and are
> - implemented under the same name for both the human and QMP monitors.
> + Send a simple command with/without parameters and return its output.
> + Implemented under the same name for both the human and QMP monitors.
> + Command with parameters should in following format e.g.:
> + 'memsave val=0 size=10240 filename=memsave'
> + Command without parameter: 'memsave'
>
> @param command: Command to send
> @param timeout: Time duration to wait for response
> @@ -614,7 +617,20 @@ class QMPMonitor(Monitor):
> @raise MonitorSendError: Raised if the command cannot be sent
> @raise MonitorProtocolError: Raised if no response is received
> """
> - return self._get_command_output(command, timeout=timeout)
> + cmdargs = cmdline.split()
> + command = cmdargs[0]
> + args = {}
> + for arg in cmdargs[1:]:
> + opt = arg.split('=')
> + try:
> + try:
> + value = int(opt[1])
> + except ValueError:
> + value = opt[1]
> + args[opt[0]] = value
> + except:
> + logging.debug("Fail to create args, please check command")
> + return self._get_command_output(command, args, timeout=timeout)
>
>
> def quit(self):
Why not add a wrapper for the command you're interested in?
If we do it your way, a test that uses cmd() with parameters will have
to handle the human case and the QMP case separately. For example, if a
human monitor is used the test will have to use
vm.monitor.cmd("screendump scr.ppm")
and if QMP is used the test will have to use
vm.monitor.cmd("screendump filename=scr.ppm").
but if we use a wrapper,
vm.monitor.screendump("scr.ppm")
will work in both cases.
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