UDP implementation for Java, C# and C binding
---------------------------------------------
Key: ETCH-157
URL: https://issues.apache.org/jira/browse/ETCH-157
Project: Etch
Issue Type: New Feature
Components: build, c-binding, compiler, csharp-binding, examples,
java-binding, webpage
Affects Versions: 1.2
Reporter: Armin Müller
Hi,
attached are a series of patches, which add UDP support to Etch for the Java,
C# and C bindings. It can be used in place of TCP by replacing the url scheme
with UDP. The UDP transport support has been extended with a configurable
single session mode, which can be used to run leightweight servers. Please see
the attached file "Leightweight_Etch_Server.txt" for a more detailed
description of this mode. It has been written in the confluence wiki style
syntax and together with the attached images it's suitable for creating a new
etch documentation page. The single session mode has been extended further with
a support for one-way method calls from the server to multiple clients. For
more information, please look at the "Signals" section and the attached patch
files.
The UDP implementation for the C binding is limited to single session mode. It
limits the ability of etch servers to call methods of more than one remote
client. The signal extension can be used to avoid this limitation.
Below a short description of the attached patches is listed. They can be
applied using the following GIT command: "git am -k --keep-cr
--whitespace=nowarn <path>/*.patch" or can be applied to a clean SVN checkout:
"patch -p1 -i <path>/*.patch".
* Add property to skip building of the examples:
0001-build-add-skip.examples-property.patch
* Bump dependency to .NET 4.0 and NUnit 2.5.9. The C# UDP implementation is
based on features available in .NET 4.0.
0002-binding-csharp-bump-dependencies-to-.NET-4.0-and-NUn.patch
* Add runtime and build support for the Mono framework (Mono >= 2.10.1, C#).
0003-binding-csharp-add-mono-support.patch
* Make UDP and TCP protocols seamlessly interchangable in Etch (UDP support for
C# and Java).
0004-binding-csharp-add-udp-transport-support.patch
0005-binding-java-add-udp-transport-support.patch
* Add configurable server single session mode. URL parameter:
UdpConnection.singleSession=true
0006-binding-csharp-add-udp-single-session-support.patch
0007-binding-java-add-udp-single-session-support.patch
* Add inet_who object to track remote etch clients. Required by the C UDP
implementation.
0008-binding-c-add-inet_who-object.patch
* Add UDP transport support to the C binding (single session only). The
"UdpConnection.singleSession" url parameter is not supported and ignored. A
patched version of APR (test with version 1.4.2) is required to send broadcast
messages under Linux. The patch has been submitted, but is currently not
integrated (see https://issues.apache.org/bugzilla/show_bug.cgi?id=46389).
0009-binding-c-add-UDP-single-session-transport.patch
* Add signal support for single session mode. See the attached
"Leightweight_Etch_Server.txt" document.
0010-compiler-add-Signal-annotation-support.patch
0011-binding-csharp-add-Signal-support.patch
0012-binding-java-add-Signal-support.patch
0013-binding-c-extend-send-sendex-for-etch_who.patch
0014-binding-c-add-Signal-support.patch
* Add signal examples for the C#, Java and C binding.
0015-examples-add-signals-example-for-csharp-java-and-c.patch
Authors:
Armin Müller <[email protected]> (itestra GmbH by order of BMW Group Research
and Technology)
Aleksandar Kanchev <[email protected]> (itestra GmbH by order of BMW Group
Research and Technology)
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