From 55431da1fe84489f50b4a411cbcff6325887217d Mon Sep 17 00:00:00 2001
From: Romain Broucquart <romain.broucquart@synchrotron-soleil.fr>
Date: Fri, 25 Sep 2020 15:48:17 +0200
Subject: [PATCH] [ContextSaver] Switch to batch attribute access
Do not loop access on tango devices, use group access.
---
ContextSaver.py | 37 +++++++++++++++++++++++--------------
1 file changed, 23 insertions(+), 14 deletions(-)
diff --git a/ContextSaver.py b/ContextSaver.py
index 63c23fb..ca24584 100644
--- a/ContextSaver.py
+++ b/ContextSaver.py
@@ -31,27 +31,36 @@ def get_wattr(proxy):
logger.debug("Scanning write attribute of device %s"%proxy.name())
config = dict()
- # Scan all attributes
- for attr in proxy.get_attribute_list():
+ # Get all attributes configuration
+ cattr = proxy.get_attribute_config(proxy.get_attribute_list())
+ wattr=[]
+ for attr in cattr:
logger.debug("Analyse attribute '%s' "%(
- attr))
+ attr.name))
- try:
- if proxy.get_attribute_config(attr).writable in [
+ if attr.writable in [
tango.AttrWriteType.WRITE,
tango.AttrWriteType.READ_WRITE,
tango.AttrWriteType.READ_WITH_WRITE]:
- v= proxy[attr].value
- if type(v) is numpy.ndarray:
- v=v.tolist()
- config[attr]=v
+ # attr is writtable, savbing it into list
+ wattr.append(attr.name)
- logger.debug("Detect writtable attribute '%s' = %s"%(
- attr,
- proxy[attr].value))
- except tango.DevFailed:
- logger.warning("Failed to save attribute '%s'"%attr)
+ logger.debug("Detect writtable attribute '%s'"%(
+ attr.name))
+
+ # Read all writtable attributes
+ rattr = proxy.read_attributes(wattr)
+ for attr in rattr:
+ v= attr.value
+ if type(v) is numpy.ndarray:
+ v=v.tolist()
+
+ logger.debug("Read writtable attribute '%s' = %s"%(
+ attr.name,
+ v))
+
+ config[attr.name]=v
return config
--
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