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This patch is replaces generic xs_asserts by errno_assers and
alloc_asserts as appropriate.
It is based on 0MQ patch by Martin Hurton.
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
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The filter is build into libxs rather than being a plug-in.
It's ID is XS_FILTER_TOPIC.
The filter assumed that the messages are text-based and consider
binary 0 to be a delimiter separating message topic from the message
body. Use of the delimiter is not mandatory though. If binary zero
is not present, whole message is used for matching.
The topic is separated into elements using dots, e.g.
"animals.dogs.fluffy".
Subscriptions match individual elements. Each element can be matched
by either literal string or a wildcard (*), for example:
"animals.*.fluffy" matches all animals called Fluffy irrsepctive
of whether they are dogs, cats or whatever.
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
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http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=668550)
Signed-off-by: Martin Lucina <martin@lucina.net>
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Till now the subscription, as specified by the user, was send
upstream.
This patch allows SUB-side filter to transform the user subscription
into wire subscription. For example, only a has can be sent upstream
instead of a perfect subscription.
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
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- subscription forwarding is handled by XSUB socket
- filtering is handled by SUB sockets
- subscriptions are decoupled from filter engines
- filter doesn't have to be able to enumarate the subscriptions
(no sf_enumerate function)
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
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Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
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Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
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This patch introduces following features:
- XS_PLUGIN context option to add plugins to libxs
- XS_FILTER option to switch between different filter types
- Automatic loading of plug-ins is *not* implemented.
From the implementation point of view:
- standard prefix filter is implemented as a pluggable filter
- trie_t and mtrie_t are joined into a single class
- the code for 0MQ/3.1 compatibility is left in in the form of comments
- new test for testing re-subscriptions is added
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
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