Green API
- Summary:
- tango.get_green_mode()
Returns the current global default PyTango green mode.
- Returns
the current global default PyTango green mode
- Return type
- tango.set_green_mode(green_mode=None)
Sets the global default PyTango green mode.
Advice: Use only in your final application. Don’t use this in a python library in order not to interfere with the beavior of other libraries and/or application where your library is being.
- Parameters
green_mode (GreenMode) – the new global default PyTango green mode
- tango.futures.DeviceProxy(self, dev_name, wait=True, timeout=True) DeviceProxy
- tango.futures.DeviceProxy(self, dev_name, need_check_acc, wait=True, timeout=True) DeviceProxy
Creates a futures enabled
DeviceProxy.The DeviceProxy constructor internally makes some network calls which makes it slow. By using the futures green mode you are allowing other python code to be executed in a cooperative way.
Note
The timeout parameter has no relation with the tango device client side timeout (gettable by
get_timeout_millis()and settable throughset_timeout_millis())- Parameters
dev_name (str) – the device name or alias
need_check_acc (bool) – in first version of the function it defaults to True. Determines if at creation time of DeviceProxy it should check for channel access (rarely used)
wait (bool) – whether or not to wait for result of creating a DeviceProxy.
timeout (float) – The number of seconds to wait for the result. If None, then there is no limit on the wait time. Ignored when wait is False.
- Returns
- if wait is True:
- else:
concurrent.futures.Future
- Throws
a DevFailed if wait is True and there is an error creating the device.
a concurrent.futures.TimeoutError if wait is False, timeout is not None and the time to create the device has expired.
New in PyTango 8.1.0
- tango.gevent.DeviceProxy(self, dev_name, wait=True, timeout=True) DeviceProxy
- tango.gevent.DeviceProxy(self, dev_name, need_check_acc, wait=True, timeout=True) DeviceProxy
Creates a gevent enabled
DeviceProxy.The DeviceProxy constructor internally makes some network calls which makes it slow. By using the gevent green mode you are allowing other python code to be executed in a cooperative way.
Note
The timeout parameter has no relation with the tango device client side timeout (gettable by
get_timeout_millis()and settable throughset_timeout_millis())- Parameters
dev_name (str) – the device name or alias
need_check_acc (bool) – in first version of the function it defaults to True. Determines if at creation time of DeviceProxy it should check for channel access (rarely used)
wait (bool) – whether or not to wait for result of creating a DeviceProxy.
timeout (float) – The number of seconds to wait for the result. If None, then there is no limit on the wait time. Ignored when wait is False.
- Returns
- if wait is True:
- else:
gevent.event.AsynchResult
- Throws
a DevFailed if wait is True and there is an error creating the device.
a gevent.timeout.Timeout if wait is False, timeout is not None and the time to create the device has expired.
New in PyTango 8.1.0