etherlab/entries_list.ysl2
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Wed, 13 Mar 2019 15:43:45 +0300
changeset 2543 2befed4d6ca8
parent 2165 02a2b5dee5e3
child 2641 c9deff128c37
permissions -rw-r--r--
Fix Pyro work with SSL wrapper (sslpsk)

Following error was shown in Beremiz console:
PYRO connecting to URI : PYROS://127.0.0.1:3001#beremiz
Exception while connecting to 'PYROS://127.0.0.1:3001#beremiz': non-zero flags not allowed in calls to recv() on <class 'ssl.SSLSocket'>
Connection failed to PYROS://127.0.0.1:3001#beremiz!

Reason is that Pyro calls socket recv() with MSGWAITALL flag, that causes ValueError exception.

https://docs.python.org/2/library/ssl.html
recv(), recv_into() (but passing a non-zero flags argument is not allowed)
/*

Stylesheet used to list EtherCat dictionnary entries.

Copyright (C) 2011-2014: Laurent BESSARD

Distributed under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

See COPYING file for copyrights details.

*/

include yslt.yml2
estylesheet xmlns:ns="entries_list_ns" 
            extension-element-prefixes="ns" 
            exclude-result-prefixes="ns" {
    
    param "min_index";
    param "max_index";
    
    template "text()";
    
    template "Device" {
        apply "Profile/Dictionary/Objects/Object";
        foreach "RxPdo" {
            call "pdo_entries" with "direction", "'Receive'";
        }
        foreach "TxPdo" {
            call "pdo_entries" with "direction", "'Transmit'";
        }
    }
    
    template "Object" {
        variable "index" > «ns:HexDecValue(Index/text())»
        variable "entry_name" > «ns:EntryName(Name)»
        choose {
            when "$index >= $min_index and $index <= $max_index" {
                variable "datatype_name" > «Type/text()»
                choose {
                    when "ancestor::Dictionary/child::DataTypes/DataType[Name/text()=$datatype_name][SubItem]" {
                        apply "ancestor::Dictionary/child::DataTypes/DataType[Name/text()=$datatype_name][SubItem]" {
                            with "index" > «$index»
                            with "entry_name" > «$entry_name»
                        }
                    }
                    otherwise {
                        variable "subindex" > 0
                        variable "entry" {
                            > «ns:AddEntry($index, $subindex, $entry_name, $datatype_name, BitSize/text(), Flags/Access/text(), Flags/PdoMapping/text())»
                        }
                    }
                }
            }
        }
    }
    
    template "DataType" {
        param "index";
        param "entry_name";
        foreach "SubItem" {
            variable "subindex" > «ns:HexDecValue(SubIdx/text())»
            variable "subentry_name" > «$entry_name» - «ns:EntryName(DisplayName, Name/text())»
            variable "entry" {
                > «ns:AddEntry($index, $subindex, $subentry_name, Type/text(), BitSize/text(), Flags/Access/text(), Flags/PdoMapping/text())»
            }
        }
    }
    
    function "pdo_entries" {
        param "direction";
        variable "pdo_index" > «ns:HexDecValue(Index/text())»
        variable "pdo_name" > «ns:EntryName(Name)»
        foreach "Entry" {
            variable "index" > «ns:HexDecValue(Index/text())»
            choose {
                when "$index >= $min_index and $index <= $max_index" {
                    variable "subindex" > «ns:HexDecValue(SubIndex/text())»
                    variable "subentry_name" > «ns:EntryName(Name)»
                    variable "access" {
                        choose {
                            when "$direction='Transmit'" > ro
                            otherwise > wo
                        }
                    }
                    variable "pdo_mapping" {
                        choose {
                            when "$direction='Transmit'" > T
                            otherwise > R
                        }
                    }
                    variable "entry" {
                        > «ns:AddEntry($index, $subindex, $subentry_name, DataType/text(), BitLen/text(), $access, $pdo_mapping, $pdo_index, $pdo_name, $direction)»
                    }
                }
            }
        }
    }
}