Are README.md steps complete?

[bvinodkumar2008]

Hello,

I am not able to follow the README steps here. Can someone help answering below questions?
In the build step of open62541,

• Set following options in CMakeList.txt - what options to set?
• I think we need cd build after mkdir build - this is missing
• Is this command right? cmake -DBUILD_SHARED_LIBS=ON -DUA_ENABLE_FULL_NS0 .. (i tried executing it from build/ folder) - i got an issue of not a valid key value pair. What value do i need to give for DUA_ENABLE_FULL_NS0

Once i get this right, i hope i should be able to generate open62541.so and use it

[oroulet]

Hi,

This code was only written to 1) demonstrate that writing python wrapper is relatively easy 2) support using an open62541 server in opcua-modeler https://github.com/FreeOpcUa/opcua-modeler. So it only exposes two methods start_server() and stop_server() NOTHING else

so it is currently only interesting for someone with good knowledge of python/C/Cython and might be outdated. If you want to use python look at the native python opcua implementation.

but yes, a cd command is missing as well as a complete command line (add =ON for example). Feel free to fix that

[bvinodkumar2008]

Thanks, will do so. I was able to successfully compile open62541 but while running the setup.py script here, running into the below issue:

command: python setup.py build_ext --inplace
running build_ext
building 'open62541' extension
x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -Wdate-time -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security -fPIC -I../open62541/include -I../open62541/plugins -I../open62541/build/src_generated/ -I../open62541/deps -I../open62541/build -I/usr/include/python2.7 -c open62541.c -o build/temp.linux-x86_64-2.7/open62541.o
In file included from ../open62541/include/ua_types.h:19:0,
from ../open62541/include/ua_server.h:16,
from ../open62541/include/ua_plugin_network.h:12,
from open62541.c:640:
../open62541/build/src_generated/ua_config.h:92:29: fatal error: ua_architecture.h: No such file or directory
compilation terminated.
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

Can someone help me in addressing this? I was trying to see if i can write python wrappers for some of the C APIs just like the ones exposed under https://github.com/open62541/open62541-python/blob/master/open62541.pyx.

[bvinodkumar2008]

Hello @oroulet,

Can you help me in getting the open62541 python module compiled? Thanks in advance...

[oroulet]

I updated README and could compile it. although I had to modify ../open62541/build/src_generated/ua_types_generated.h
@Pro it looks like the test at line 11 is wrong, I had to swicth else and then causes.....

@bvinodkumar2008 I used branch 0.3, there might be some changes in master... a patch is welcome for them

[bvinodkumar2008]

Thanks @oroulet. I somehow missed your comment, will check with branch 0.3 today and let you know. Also, if it works for branch 0.3, will try to push a patch for master.

[bvinodkumar2008]

Thanks @oroulet. I somehow missed your comment, will check with branch 0.3 today and let you know. Also, if it works for branch 0.3, will try to push a patch for master.

[bvinodkumar2008]

Hi @oroulet ,
The git submodule udpate in the README.md step didn't work, i had to run git submodule update --init to get the submodules source code.

I still see the below error upon running python2.7 setup.py build_ext --inplace against branches 0.3 and tag 0.3-rc2 ( https://github.com/open62541/open62541):

running build_ext
building 'open62541' extension
x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -Wdate-time -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security -fPIC -I../open62541/include -I../open62541/plugins -I../open62541/build/src_generated/ -I../open62541/deps -I/usr/include/python2.7 -c open62541.c -o build/temp.linux-x86_64-2.7/open62541.o
In file included from ../open62541/include/ua_server.h:21:0,
from ../open62541/include/ua_plugin_network.h:16,
from open62541.c:641:
../open62541/build/src_generated/ua_types_generated.h:15:23: fatal error: open62541.h: No such file or directory
compilation terminated.
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

Observation on master branch ( https://github.com/open62541/open62541):**python setup.py build_ext --inplace**
Compiling open62541.pyx because it changed.
[1/1] Cythonizing open62541.pyx
/home/vkb1/.local/lib/python2.7/site-packages/Cython/Compiler/Main.py:367: FutureWarning: Cython directive 'language_level' not set, using 2 for now (Py2). This will change in a later release! File: /home/vkb1/opcua_repos/open62541-python/open62541.pyx
tree = Parsing.p_module(s, pxd, full_module_name)
running build_ext
building 'open62541' extension
x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -Wdate-time -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security -fPIC -I../open62541/include -I../open62541/plugins -I../open62541/build/src_generated/ -I../open62541/deps -I/usr/include/python2.7 -c open62541.c -o build/temp.linux-x86_64-2.7/open62541.o
In file included from ../open62541/include/ua_types.h:19:0,
from ../open62541/include/ua_server.h:16,
from ../open62541/include/ua_plugin_network.h:12,
from open62541.c:639:
../open62541/build/src_generated/ua_config.h:92:29: fatal error: ua_architecture.h: No such file or directory
compilation terminated.
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1