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# RabbitMQ C AMQP client library
## Introduction
This is a C-language AMQP client library for use with AMQP servers
speaking protocol versions 0-8 and 0-9-1.
- <http://www.rabbitmq.com/>
- <http://www.amqp.org/>
- <http://hg.rabbitmq.com/rabbitmq-c>
*NB*: This library's source code supports *either* 0-8 *or* 0-9-1, not
both simultaneously. Please check carefully that you have the variant
you require.
Announcements regarding the library are periodically made on the
RabbitMQ mailing list and on LShift's blog.
- <http://lists.rabbitmq.com/cgi-bin/mailman/listinfo/rabbitmq-discuss>
- <http://www.lshift.net/blog/>
- <http://www.lshift.net/blog/category/lshift-sw/rabbitmq/>
## Retrieving the code
In addition to the source code for this library, you will require a
copy of `rabbitmq-codegen`. Here is a short `sh` script for retrieving
the necessary pieces:
hg clone http://hg.rabbitmq.com/rabbitmq-codegen/
hg clone http://hg.rabbitmq.com/rabbitmq-c/
You will also need a recent python with the simplejson module
installed, and the GNU autotools (autoconf, automake, libtool etc).
In current releases, the default (trunk) branch of the mercurial
repository hosting the `rabbitmq-c` code is set up for AMQP 0-8
support, with AMQP 0-9-1 support living on a separate mercurial
branch. To switch your checked-out copy of the source code to 0-9-1
support,
(cd rabbitmq-codegen; hg up amqp_0_9_1)
(cd rabbitmq-c; hg up amqp_0_9_1)
before building the code. If you switch branches after having compiled
the code, make sure to rerun `autoreconf`, `configure`, `make clean`
and `make` after switching branches.
## Building the code
Once you have all the prerequisites, change to the `rabbitmq-c`
directory and run
autoreconf -i
to run the GNU autotools and generate the configure script, followed
by
./configure
make
to build the `librabbitmq` library and the example programs.
## Running the examples
Arrange for a RabbitMQ or other AMQP server to be running on
`localhost` at TCP port number 5672.
In one terminal, run
./examples/amqp_listen localhost 5672 amq.direct test
In another terminal,
./examples/amqp_sendstring localhost 5672 amq.direct test "hello world"
You should see output similar to the following in the listener's
terminal window:
Result 1
Frame type 1, channel 1
Method AMQP_BASIC_DELIVER_METHOD
Delivery 1, exchange amq.direct routingkey test
Content-type: text/plain
----
00000000: 68 65 6C 6C 6F 20 77 6F : 72 6C 64 hello world
0000000B:
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