[nox-dev] how to add a new component
Hi, all I have download tha Spanning_Tree component, but I don't know how to use it. someone can help me? thanks, xiefeng ___ nox-dev mailing list nox-dev@noxrepo.org http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org
Re: [nox-dev] how to add a new component
Hi Xiefeng, have you taken a look at this? ( http://www.openflowswitch.org/wk/index.php/Basic_Spanning_Tree#Installation) there are a few minor outdated instructions ( for example cd noxcore should be cd nox and nox.xml should be nox.json) but the main idea is described there. On Sun, Dec 26, 2010 at 3:27 PM, 谢峰 xiefen...@gmail.com wrote: Hi, all I have download tha Spanning_Tree component, but I don't know how to use it. someone can help me? thanks, xiefeng ___ nox-dev mailing list nox-dev@noxrepo.org http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org ___ nox-dev mailing list nox-dev@noxrepo.org http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org
Re: [nox-dev] how to add a new component
I've done as the steps and I modified the nox.json, after the installation, In this file *build/src/etc/nox.json, I see packet-in-event first say spanning_tree component.* 2010/12/26 Kyriakos Zarifis kyr.zari...@gmail.com Hi Xiefeng, have you taken a look at this? ( http://www.openflowswitch.org/wk/index.php/Basic_Spanning_Tree#Installation) there are a few minor outdated instructions ( for example cd noxcore should be cd nox and nox.xml should be nox.json) but the main idea is described there. On Sun, Dec 26, 2010 at 3:27 PM, 谢峰 xiefen...@gmail.com wrote: Hi, all I have download tha Spanning_Tree component, but I don't know how to use it. someone can help me? thanks, xiefeng ___ nox-dev mailing list nox-dev@noxrepo.org http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org -- Feng Xie Ph.D. Candidate Network Security Lab, Research Institute of Information Technology Tsinghua National Laboratory for Information Science and Technology Dept. of Automation, Tsinghua Univ., Beijing, China, 100084. Tel.: +86-010-6277-2656 Email: xiefen...@gmail.com ___ nox-dev mailing list nox-dev@noxrepo.org http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org
Re: [nox-dev] how to add a new component
Are you running nox_core with spanning_tree? What are the sings that
spanning_tree is not working? Can you attach a log with any relevant error
messages?
2010/12/26 谢峰 xiefen...@gmail.com
I modified the file:spanning_tree/Makefile.am as follow:
include ../../../Make.vars
EXTRA_DIST =\
meta.json\
__init__.py \
spanning_tree.py
NOX_RUNTIMEFILES = meta.json\
__init__.py \
spanning_tree.py
all-local:
@dlist=$(NOX_RUNTIMEFILES);for f in $$dlist; do \
if test -f $(srcdir)/$$f test ! -f $$f; then \
ln -sf $(srcdir)/$$f $(builddir)/$$f;\
fi;\
done;
and I modified the file spanning_tree/meta.json as follow:
{
components: [
{
python: nox.apps.spanning_tree.spanning_tree,
dependencies: [
python,
discovery
],
name: spanning_tree,
}
]
}
Is there some problem, but during the installation, there is no error.
however, it seems the spanning_tree doesn't work.
Thanks for your help.
regards
xiefeng
在 2010年12月26日 下午10:37，谢峰 xiefen...@gmail.com写道：
I've done as the steps and I modified the nox.json, after the installation,
In this file *build/src/etc/nox.json, I see packet-in-event first say
spanning_tree component.*
2010/12/26 Kyriakos Zarifis kyr.zari...@gmail.com
Hi Xiefeng,
have you taken a look at this? (
http://www.openflowswitch.org/wk/index.php/Basic_Spanning_Tree#Installation)
there are a few minor outdated instructions ( for example cd noxcore
should be cd nox and nox.xml should be nox.json) but the main idea is
described there.
On Sun, Dec 26, 2010 at 3:27 PM, 谢峰 xiefen...@gmail.com wrote:
Hi, all
I have download tha Spanning_Tree component, but I don't know how to
use it.
someone can help me?
thanks,
xiefeng
___
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http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org
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Re: [nox-dev] Contributing to Nox
Hi KK, I've attached the patch. Sorry for taking so long to reply, I was away for the holidays. The patch is for destiny. I have seen Murphy's patch, and this patch is based off of it. Murphy added the ability to use the component's register_handler method for error events, and mine just adds a convenience methods for registering errors, since they exist for other events as well. -Derek On 12/23/2010 03:20 AM, kk yap wrote: Thanks Alec. That's a useful feature I did not know about. Appreciate the advice. Hi Derek, Is this patch against destiny? We tend to patch the unstable branch (destiny), so if I can have a patch against destiny, that would be best. Also, have you seen Murphy's patch in the destiny branch? Regards KK commit a2efd049da9f0d0d8dc4e56dc1aaa64930c1d257 Author: Murphy McCauleymurphy.mccau...@gmail.com Date: Tue Dec 14 11:49:18 2010 -0800 Pythonize OpenFlow error messages OpenFlow error messages (ofp_error_msg / OFPT_ERROR_MSG) were previously only available in C++. They're now available in Python as well. On 22 December 2010 10:09, Alec Storyav...@cornell.edu wrote: If you click the little down arrow on the top right, and select Show original you get the non-formatted version of the message and should be able to get the patch out of there. On Wed, Dec 22, 2010 at 6:29 AM, kk yapyap...@stanford.edu wrote: Hi Derek, Many thanks for the patch. Do you mind sending me the patch zipped or tarballed? Sorry Gmail reformats things a little, so the git-format-patch output is distorted. Regards KK On 21 December 2010 23:38, Derek Cormierderek.corm...@lab.ntt.co.jp wrote: Hello, I would like to start contributing to the Nox code. This is my first time contributing to open source software, and I'm still new to git, so I don't know the exact process. I've seen some people post patch files, so I'll include a small change I made here. Recently the Error_event was made available in the python API, but core.py didn't have an easier member function to register errors (had to register using the Error_event.get_static_name() etc..). This isn't incredibly useful, but I just wanted to try contributing for the first time. Please let me know if I didn't do this right. Thanks! Derek From ea590df29ae342bb9029b90829fa1ddf3ff36d10 Mon Sep 17 00:00:00 2001 From: Derek Cormiercormier.de...@gmail.com Date: Wed, 22 Dec 2010 16:18:33 +0900 Subject: [PATCH] Allow python components to register for error events through a class method. --- src/nox/lib/core.py | 10 ++ src/nox/lib/util.py |9 + 2 files changed, 19 insertions(+), 0 deletions(-) diff --git a/src/nox/lib/core.py b/src/nox/lib/core.py index 3b994c6..70cdb48 100644 --- a/src/nox/lib/core.py +++ b/src/nox/lib/core.py @@ -678,6 +678,16 @@ class Component: self.register_handler(Switch_mgr_leave_event.static_get_name(), gen_switch_mgr_leave_cb(handler)) +def register_for_error(self, handler): + +register a handler to be called on every error +event handler will be called with the following args: + +handler(type, code, data, xid) + +self.register_handler(Error_event.static_get_name(), + gen_error_cb(handler)) + def unregister_handler(self, rule_id): Unregister a handler for match. diff --git a/src/nox/lib/util.py b/src/nox/lib/util.py index a192826..aa4b807 100644 --- a/src/nox/lib/util.py +++ b/src/nox/lib/util.py @@ -239,6 +239,15 @@ def gen_switch_mgr_leave_cb(handler): f.cb = handler return f +def gen_error_cb(handler): +def f(event): +ret = f.cb(event.type, event.code, event.data, event.xid) +if ret == None: +return CONTINUE +return ret +f.cb = handler +return f + def set_match(attrs): m = openflow.ofp_match() wildcards = 0 -- 1.7.0.4 ___ nox-dev mailing list nox-dev@noxrepo.org http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org ___ nox-dev mailing list nox-dev@noxrepo.org http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org -- Alec Story Cornell University Biological Sciences, Computer Science 2012 ___ nox-dev mailing list nox-dev@noxrepo.org http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org py-comp-reg-errors.patch.gz Description: GNU Zip compressed data ___ nox-dev mailing list nox-dev@noxrepo.org http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org
Re: [nox-dev] how to add a new component
When I'm running nox_core with spanning_tree, it says the description is
not found. so I run nox_core with routing, it's okay. but it seems not
to have the function of spanning_tree.
在 2010年12月27日 上午1:44，Kyriakos Zarifis kyr.zari...@gmail.com写道：
Are you running nox_core with spanning_tree? What are the sings that
spanning_tree is not working? Can you attach a log with any relevant error
messages?
2010/12/26 谢峰 xiefen...@gmail.com
I modified the file:spanning_tree/Makefile.am as follow:
include ../../../Make.vars
EXTRA_DIST =\
meta.json\
__init__.py \
spanning_tree.py
NOX_RUNTIMEFILES = meta.json\
__init__.py \
spanning_tree.py
all-local:
@dlist=$(NOX_RUNTIMEFILES);for f in $$dlist; do \
if test -f $(srcdir)/$$f test ! -f $$f; then \
ln -sf $(srcdir)/$$f $(builddir)/$$f;\
fi;\
done;
and I modified the file spanning_tree/meta.json as follow:
{
components: [
{
python: nox.apps.spanning_tree.spanning_tree,
dependencies: [
python,
discovery
],
name: spanning_tree,
}
]
}
Is there some problem, but during the installation, there is no error.
however, it seems the spanning_tree doesn't work.
Thanks for your help.
regards
xiefeng
在 2010年12月26日 下午10:37，谢峰 xiefen...@gmail.com写道：
I've done as the steps and I modified the nox.json, after the
installation, In this file *build/src/etc/nox.json, I see
packet-in-event first say spanning_tree component.*
2010/12/26 Kyriakos Zarifis kyr.zari...@gmail.com
Hi Xiefeng,
have you taken a look at this? (
http://www.openflowswitch.org/wk/index.php/Basic_Spanning_Tree#Installation)
there are a few minor outdated instructions ( for example cd noxcore
should be cd nox and nox.xml should be nox.json) but the main idea is
described there.
On Sun, Dec 26, 2010 at 3:27 PM, 谢峰 xiefen...@gmail.com wrote:
Hi, all
I have download tha Spanning_Tree component, but I don't know how to
use it.
someone can help me?
thanks,
xiefeng
___
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http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org
--
Feng Xie
Ph.D. Candidate
Network Security Lab, Research Institute of Information Technology
Tsinghua National Laboratory for Information Science and Technology
Dept. of Automation, Tsinghua Univ., Beijing, China, 100084.
Tel.: +86-010-6277-2656
Email: xiefen...@gmail.com
___
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Re: [nox-dev] how to add a new component
I've updated the file configure.ac.in and src/etc/nox.json. And then I
modified the file spanning_tree/Makefile.am and spanning_tree/meta.json as
follow:
include ../../../Make.vars
EXTRA_DIST =\
meta.json\
__init__.py \
spanning_tree.py
NOX_RUNTIMEFILES = meta.json\
__init__.py \
spanning_tree.py
all-local:
@dlist=$(NOX_RUNTIMEFILES);for f in $$dlist; do \
if test -f $(srcdir)/$$f test ! -f $$f; then \
ln -sf $(srcdir)/$$f $(builddir)/$$f;\
fi;\
done;
and I modified the file spanning_tree/meta.json as follow:
{
components: [
{
python: nox.apps.spanning_tree.spanning_tree,
dependencies: [
python,
discovery
],
name: spanning_tree,
}
]
}
Is there any problem?
在 2010年12月27日 上午9:42，kk yap yap...@stanford.edu写道：
Hi,
Did you update configure.ac.in?
Regards
KK
2010/12/26 谢峰 xiefen...@gmail.com
When I'm running nox_core with spanning_tree, it says the description
is not found. so I run nox_core with routing, it's okay. but it seems
not to have the function of spanning_tree.
在 2010年12月27日 上午1:44，Kyriakos Zarifis kyr.zari...@gmail.com写道：
Are you running nox_core with spanning_tree? What are the sings that
spanning_tree is not working? Can you attach a log with any relevant error
messages?
2010/12/26 谢峰 xiefen...@gmail.com
I modified the file:spanning_tree/Makefile.am as follow:
include ../../../Make.vars
EXTRA_DIST =\
meta.json\
__init__.py \
spanning_tree.py
NOX_RUNTIMEFILES = meta.json\
__init__.py \
spanning_tree.py
all-local:
@dlist=$(NOX_RUNTIMEFILES);for f in $$dlist; do \
if test -f $(srcdir)/$$f test ! -f $$f; then \
ln -sf $(srcdir)/$$f $(builddir)/$$f;\
fi;\
done;
and I modified the file spanning_tree/meta.json as follow:
{
components: [
{
python: nox.apps.spanning_tree.spanning_tree,
dependencies: [
python,
discovery
],
name: spanning_tree,
}
]
}
Is there some problem, but during the installation, there is no error.
however, it seems the spanning_tree doesn't work.
Thanks for your help.
regards
xiefeng
在 2010年12月26日 下午10:37，谢峰 xiefen...@gmail.com写道：
I've done as the steps and I modified the nox.json, after the
installation, In this file *build/src/etc/nox.json, I see
packet-in-event first say spanning_tree component.*
2010/12/26 Kyriakos Zarifis kyr.zari...@gmail.com
Hi Xiefeng,
have you taken a look at this? (
http://www.openflowswitch.org/wk/index.php/Basic_Spanning_Tree#Installation)
there are a few minor outdated instructions ( for example cd noxcore
should be cd nox and nox.xml should be nox.json) but the main idea
is
described there.
On Sun, Dec 26, 2010 at 3:27 PM, 谢峰 xiefen...@gmail.com wrote:
Hi, all
I have download tha Spanning_Tree component, but I don't know how
to use it.
someone can help me?
thanks,
xiefeng
___
nox-dev mailing list
nox-dev@noxrepo.org
http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org
--
Feng Xie
Ph.D. Candidate
Network Security Lab, Research Institute of Information Technology
Tsinghua National Laboratory for Information Science and Technology
Dept. of Automation, Tsinghua Univ., Beijing, China, 100084.
Tel.: +86-010-6277-2656
Email: xiefen...@gmail.com
___
nox-dev mailing list
nox-dev@noxrepo.org
http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org
--
Feng Xie
Ph.D. Candidate
Network Security Lab, Research Institute of Information Technology
Tsinghua National Laboratory for Information Science and Technology
Dept. of Automation, Tsinghua Univ., Beijing, China, 100084.
Tel.: +86-010-6277-2656
Email: xiefen...@gmail.com
___
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Re: [nox-dev] how to add a new component
It's ok, I've done re-run ./boot.sh, ./configure and the installation is
successful.
thanks KK.
xiefeng
在 2010年12月27日 上午10:17，kk yap yap...@stanford.edu写道：
Sorry to ask the obvious, but you did re-run ./boot.sh, ./configure and
make right? You can tell that I cannot find obvious problems in the files
you posted.
Regards
KK
2010/12/26 谢峰 xiefen...@gmail.com
I've updated the file configure.ac.in and src/etc/nox.json. And then I
modified the file spanning_tree/Makefile.am and spanning_tree/meta.json as
follow:
include ../../../Make.vars
EXTRA_DIST =\
meta.json\
__init__.py \
spanning_tree.py
NOX_RUNTIMEFILES = meta.json\
__init__.py \
spanning_tree.py
all-local:
@dlist=$(NOX_RUNTIMEFILES);for f in $$dlist; do \
if test -f $(srcdir)/$$f test ! -f $$f; then \
ln -sf $(srcdir)/$$f $(builddir)/$$f;\
fi;\
done;
and I modified the file spanning_tree/meta.json as follow:
{
components: [
{
python: nox.apps.spanning_tree.spanning_tree,
dependencies: [
python,
discovery
],
name: spanning_tree,
}
]
}
Is there any problem?
在 2010年12月27日 上午9:42，kk yap yap...@stanford.edu写道：
Hi,
Did you update configure.ac.in?
Regards
KK
2010/12/26 谢峰 xiefen...@gmail.com
When I'm running nox_core with spanning_tree, it says the description
is not found. so I run nox_core with routing, it's okay. but it seems
not to have the function of spanning_tree.
在 2010年12月27日 上午1:44，Kyriakos Zarifis kyr.zari...@gmail.com写道：
Are you running nox_core with spanning_tree? What are the sings that
spanning_tree is not working? Can you attach a log with any relevant error
messages?
2010/12/26 谢峰 xiefen...@gmail.com
I modified the file:spanning_tree/Makefile.am as follow:
include ../../../Make.vars
EXTRA_DIST =\
meta.json\
__init__.py \
spanning_tree.py
NOX_RUNTIMEFILES = meta.json\
__init__.py \
spanning_tree.py
all-local:
@dlist=$(NOX_RUNTIMEFILES);for f in $$dlist; do \
if test -f $(srcdir)/$$f test ! -f $$f; then \
ln -sf $(srcdir)/$$f $(builddir)/$$f;\
fi;\
done;
and I modified the file spanning_tree/meta.json as follow:
{
components: [
{
python: nox.apps.spanning_tree.spanning_tree,
dependencies: [
python,
discovery
],
name: spanning_tree,
}
]
}
Is there some problem, but during the installation, there is no error.
however, it seems the spanning_tree doesn't work.
Thanks for your help.
regards
xiefeng
在 2010年12月26日 下午10:37，谢峰 xiefen...@gmail.com写道：
I've done as the steps and I modified the nox.json, after the
installation, In this file *build/src/etc/nox.json, I see
packet-in-event first say spanning_tree component.*
2010/12/26 Kyriakos Zarifis kyr.zari...@gmail.com
Hi Xiefeng,
have you taken a look at this? (
http://www.openflowswitch.org/wk/index.php/Basic_Spanning_Tree#Installation)
there are a few minor outdated instructions ( for example cd
noxcore should be cd nox and nox.xml should be nox.json) but
the main
idea is described there.
On Sun, Dec 26, 2010 at 3:27 PM, 谢峰 xiefen...@gmail.com wrote:
Hi, all
I have download tha Spanning_Tree component, but I don't know how
to use it.
someone can help me?
thanks,
xiefeng
___
nox-dev mailing list
nox-dev@noxrepo.org
http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org
--
Feng Xie
Ph.D. Candidate
Network Security Lab, Research Institute of Information Technology
Tsinghua National Laboratory for Information Science and Technology
Dept. of Automation, Tsinghua Univ., Beijing, China, 100084.
Tel.: +86-010-6277-2656
Email: xiefen...@gmail.com
___
nox-dev mailing list
nox-dev@noxrepo.org
http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org
--
Feng Xie
Ph.D. Candidate
Network Security Lab, Research Institute of Information Technology
Tsinghua National Laboratory for Information Science and Technology
Dept. of Automation, Tsinghua Univ., Beijing, China, 100084.
Tel.: +86-010-6277-2656
Email: xiefen...@gmail.com
--
Feng Xie
Ph.D. Candidate
Network Security Lab, Research Institute of Information Technology
Tsinghua National Laboratory for Information Science and Technology
Dept. of Automation, Tsinghua Univ., Beijing, China, 100084.
Tel.: +86-010-6277-2656
Email: xiefen...@gmail.com
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[nox-dev] NOX's API Documentation online
Hi All, The last release of NOX (zaku) has come with doxygen-generated documentation, which can be a rich source of information for those trying to figure out what individual components do (e.g., routing). Judging from recent questions on the list (and to make my friends' TA job easier), I have decided put up the documentation online @ http://noxrepo.org/~yapkke/doc. Hope this will come in useful. Merry Christmas and Happy New Year. KK PS This online version has Graphviz generated diagrams and extracts all functions. To generate this, I run make EXTRACT_ALL=YES HAVE_DOT=YES html in nox/doc/doxygen for the curious. ___ nox-dev mailing list nox-dev@noxrepo.org http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org
Re: [nox-dev] Contributing to Nox
Great. Should I post any future changes here on the Nox board or send them to a developer like yourself? -Derek On 12/27/2010 02:54 PM, kk yap wrote: Hi Derek, Thanks. I pushed this to destiny (unstable). Regards KK On 26 December 2010 16:56, Derek Cormier derek.corm...@lab.ntt.co.jp mailto:derek.corm...@lab.ntt.co.jp wrote: Woops! I'm not sure how it happened but I somehow messed up the patch file. Please use this attached one instead. -Derek On 12/27/2010 09:48 AM, Derek Cormier wrote: Hi KK, I've attached the patch. Sorry for taking so long to reply, I was away for the holidays. The patch is for destiny. I have seen Murphy's patch, and this patch is based off of it. Murphy added the ability to use the component's register_handler method for error events, and mine just adds a convenience methods for registering errors, since they exist for other events as well. -Derek On 12/23/2010 03:20 AM, kk yap wrote: Thanks Alec. That's a useful feature I did not know about. Appreciate the advice. Hi Derek, Is this patch against destiny? We tend to patch the unstable branch (destiny), so if I can have a patch against destiny, that would be best. Also, have you seen Murphy's patch in the destiny branch? Regards KK commit a2efd049da9f0d0d8dc4e56dc1aaa64930c1d257 Author: Murphy McCauleymurphy.mccau...@gmail.com mailto:murphy.mccau...@gmail.com Date: Tue Dec 14 11:49:18 2010 -0800 Pythonize OpenFlow error messages OpenFlow error messages (ofp_error_msg / OFPT_ERROR_MSG) were previously only available in C++. They're now available in Python as well. On 22 December 2010 10:09, Alec Storyav...@cornell.edu mailto:av...@cornell.edu wrote: If you click the little down arrow on the top right, and select Show original you get the non-formatted version of the message and should be able to get the patch out of there. On Wed, Dec 22, 2010 at 6:29 AM, kk yapyap...@stanford.edu mailto:yap...@stanford.edu wrote: Hi Derek, Many thanks for the patch. Do you mind sending me the patch zipped or tarballed? Sorry Gmail reformats things a little, so the git-format-patch output is distorted. Regards KK On 21 December 2010 23:38, Derek Cormierderek.corm...@lab.ntt.co.jp mailto:derek.corm...@lab.ntt.co.jp wrote: Hello, I would like to start contributing to the Nox code. This is my first time contributing to open source software, and I'm still new to git, so I don't know the exact process. I've seen some people post patch files, so I'll include a small change I made here. Recently the Error_event was made available in the python API, but core.py didn't have an easier member function to register errors (had to register using the Error_event.get_static_name() etc..). This isn't incredibly useful, but I just wanted to try contributing for the first time. Please let me know if I didn't do this right. Thanks! Derek From ea590df29ae342bb9029b90829fa1ddf3ff36d10 Mon Sep 17 00:00:00 2001 From: Derek Cormiercormier.de...@gmail.com mailto:cormier.de...@gmail.com Date: Wed, 22 Dec 2010 16:18:33 +0900 Subject: [PATCH] Allow python components to register for error events through a class method. --- src/nox/lib/core.py | 10 ++ src/nox/lib/util.py |9 + 2 files changed, 19 insertions(+), 0 deletions(-) diff --git a/src/nox/lib/core.py b/src/nox/lib/core.py index 3b994c6..70cdb48 100644 --- a/src/nox/lib/core.py +++ b/src/nox/lib/core.py @@ -678,6 +678,16 @@ class Component: self.register_handler(Switch_mgr_leave_event.static_get_name(), gen_switch_mgr_leave_cb(handler)) +def register_for_error(self, handler): + +register a handler to be called on every error +event handler will be called with the following args: + +handler(type, code, data, xid) + +self.register_handler(Error_event.static_get_name(), + gen_error_cb(handler)) + def unregister_handler(self, rule_id): Unregister a handler for match. diff --git a/src/nox/lib/util.py b/src/nox/lib/util.py index a192826..aa4b807 100644 --- a/src/nox/lib/util.py +++ b/src/nox/lib/util.py @@ -239,6 +239,15 @@ def gen_switch_mgr_leave_cb(handler): f.cb = handler return f +def gen_error_cb(handler): +def f(event): +ret = f.cb(event.type, event.code, event.data, event.xid) +if ret == None: +return CONTINUE +
