C CMake Python Other
Clone or download
#516 Compare This branch is 590 commits ahead, 2 commits behind rabbitmq:master.
rcousens and alanxz Fix instructions for default build
The order of arguments were incorrect, --build must directly specify the directory afterwards.
Latest commit 1fa5f63 Jul 16, 2018
Failed to load latest commit information.
cmake Remove vim mode lines. Dec 5, 2017
codegen @ 0a95a69 Initial connection.blocked/unblocked support Dec 15, 2013
coverity Format code with clang-format Dec 5, 2017
docs Document public API Aug 13, 2013
examples Examples: fix argument parsing in sendstring example May 8, 2018
librabbitmq Bumping revision for development May 8, 2018
tests Format code with clang-format Dec 5, 2017
tools Format code with clang-format Dec 5, 2017
travis ci: add format check to travis-ci build matrix Dec 5, 2017
.clang-format Add clang-format configuration file. Jul 21, 2014
.gitattributes Adding .gitattributes Oct 24, 2012
.gitignore Adding build/ in .gitignore Dec 12, 2015
.gitmodules ci: add format check to travis-ci build matrix Dec 5, 2017
.travis.yml ci: add openssl 1.1.0 build on travis Mar 23, 2018
.ycm_extra_conf.py Add platform directory to YCM config. Feb 20, 2017
AUTHORS Fix remaining mentions of the defunct tonyg@rabbitmq.com address Mar 2, 2011
CMakeLists.txt Bumping revision for development May 8, 2018
CONTRIBUTING.md Adding a CONTRIBUTING.md document Nov 7, 2012
ChangeLog.md Preparation for v0.9.0 release. May 8, 2018
LICENSE-MIT Updating license year Apr 8, 2013
README.md Fix instructions for default build Jul 16, 2018
THANKS Credit recent contributors Feb 7, 2011
TODO Remove note about amqp_pool_alloc. Apr 15, 2010
appveyor.yml ci: enable OpenSSL v1.1.0 on Appveyor Mar 23, 2018
librabbitmq.pc.in CMake: correct generation of librabbitmq.pc Aug 21, 2013
travis.sh ci: add format check to travis-ci build matrix Dec 5, 2017


RabbitMQ C AMQP client library

Build Status

Coverage Status


This is a C-language AMQP client library for use with v2.0+ of the RabbitMQ broker.

Announcements regarding the library are periodically made on the rabbitmq-c-users and cross-posted to rabbitmq-users.

Latest Stable Version

The latest stable release of rabbitmq-c can be found at:


API documentation for v0.8.0+ can viewed from:


Getting started

Building and installing


  • CMake v2.6 or better
  • A C compiler (GCC 4.4+, clang, and MSVC are test. Other compilers may also work)
  • Optionally OpenSSL v0.9.8+ to enable support for connecting to RabbitMQ over SSL/TLS
  • Optionally POpt to build some handy command-line tools.
  • Optionally XmlTo to build man pages for the handy command-line tools
  • Optionally Doxygen to build developer API documentation.

After downloading and extracting the source from a tarball to a directory (see above), the commands to build rabbitmq-c on most systems are:

mkdir build && cd build
cmake ..
cmake --build . [--config Release]

The --config Release flag should be used in multi-configuration generators e.g., Visual Studio or XCode.

It is also possible to point the CMake GUI tool at the CMakeLists.txt in the root of the source tree and generate build projects or IDE workspace

Installing the library and optionally specifying a prefix can be done with:

cmake -DCMAKE_INSTALL_PREFIX=/usr/local ..
cmake --build . [--config Release] --target install

More information on CMake can be found on its FAQ (http://www.cmake.org/Wiki/CMake_FAQ)

Other interesting flags that can be passed to CMake:

  • BUILD_EXAMPLES=ON/OFF toggles building the examples. ON by default.
  • BUILD_SHARED_LIBS=ON/OFF toggles building rabbitmq-c as a shared library. ON by default.
  • BUILD_STATIC_LIBS=ON/OFF toggles building rabbitmq-c as a static library. OFF by default.
  • BUILD_TESTS=ON/OFF toggles building test code. ON by default.
  • BUILD_TOOLS=ON/OFF toggles building the command line tools. By default this is ON if the build system can find the POpt header and library.
  • BUILD_TOOLS_DOCS=ON/OFF toggles building the man pages for the command line tools. By default this is ON if BUILD_TOOLS is ON and the build system can find the XmlTo utility.
  • ENABLE_SSL_SUPPORT=ON/OFF toggles building rabbitmq-c with SSL support. By default this is ON if the OpenSSL headers and library can be found.
  • BUILD_API_DOCS=ON/OFF - toggles building the Doxygen API documentation, by default this is OFF

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:

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

Writing applications using librabbitmq

Please see the examples directory for short examples of the use of the librabbitmq library.


You cannot share a socket, an amqp_connection_state_t, or a channel between threads using librabbitmq. The librabbitmq library is built with event-driven, single-threaded applications in mind, and does not yet cater to any of the requirements of pthreaded applications.

Your applications instead should open an AMQP connection (and an associated socket, of course) per thread. If your program needs to access an AMQP connection or any of its channels from more than one thread, it is entirely responsible for designing and implementing an appropriate locking scheme. It will generally be much simpler to have a connection exclusive to each thread that needs AMQP service.