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Pulsar C++ client library

Examples for using the API to publish and consume messages can be found on https://github.com/apache/pulsar/tree/master/pulsar-client-cpp/examples

Requirements

It's recommended to use Protocol Buffer 2.6 because it's verified by CI, but 3.x also works.

The default supported compression types are:

  • CompressionNone
  • CompressionLZ4

If you want to enable other compression types, you need to install:

  • CompressionZLib: zlib
  • CompressionZSTD: zstd
  • CompressionSNAPPY: snappy

If you want to build and run the tests, you need to install GTest. Otherwise, you need to add CMake option -DBUILD_TESTS=OFF.

If you don't want to build Python client since boost-python may not be easy to install, you need to add CMake option -DBUILD_PYTHON_WRAPPER=OFF.

If you want to use ClientConfiguration::setLogConfFilePath, you need to install the Log4CXX and add CMake option -DUSE_LOG4CXX=ON.

Platforms

Pulsar C++ Client Library has been tested on:

  • Linux
  • Mac OS X
  • Windows x64

Compilation

Compile on Ubuntu

Install all dependencies:

sudo apt-get install -y g++ cmake libssl-dev libcurl4-openssl-dev \ libprotobuf-dev libboost-all-dev libgtest-dev libgmock-dev \ protobuf-compiler

Compile Pulsar client library:

cd pulsar-client-cpp cmake . make

Checks

Client library will be placed in
lib/libpulsar.so lib/libpulsar.a 
Tools will be placed in
perf/perfProducer perf/perfConsumer 

Compile on Mac OS X

Install all dependencies:

brew install openssl protobuf boost boost-python3 googletest zstd snappy

Compile Pulsar client library:

cd pulsar-client-cpp/ cmake . make

Checks

Client library will be placed in
lib/libpulsar.dylib lib/libpulsar.a 
Tools will be placed in:
perf/perfProducer perf/perfConsumer 

Compile on Windows

Install with vcpkg

It's highly recommended to use vcpkg for C++ package management on Windows. It's easy to install and well supported by Visual Studio (2015/2017/2019) and CMake. See here for quick start.

Take Windows 64-bit library as an example, you only need to run

vcpkg install --feature-flags=manifests --triplet x64-windows

NOTE: For Windows 32-bit library, change x64-windows to x86-windows, see here for more details about the triplet concept in Vcpkg.

The all dependencies, which are specified by vcpkg.json, will be installed in vcpkg_installed/ subdirectory,

With vcpkg, you only need to run two commands:

cmake \ -B ./build \ -A x64 \ -DBUILD_PYTHON_WRAPPER=OFF -DBUILD_TESTS=OFF \ -DVCPKG_TRIPLET=x64-windows \ -DCMAKE_BUILD_TYPE=Release \ -S . cmake --build ./build --config Release

Then all artifacts will be built into build subdirectory.

NOTE

  1. For Windows 32-bit, you need to use -A Win32 and -DVCPKG_TRIPLET=x86-windows.
  2. For MSVC Debug mode, you need to replace Release with Debug for both CMAKE_BUILD_TYPE variable and --config option.

Install dependencies manually

You need to install dlfcn-win32 in addition.

If you installed the dependencies manually, you need to run

#If all dependencies are in your path, all that is necessary is pulsar-client-cpp/cmake . #if all dependencies are not in your path, then passing in a PROTOC_PATH and CMAKE_PREFIX_PATH is necessary pulsar-client-cpp/cmake -DPROTOC_PATH=C:/protobuf/bin/protoc -DCMAKE_PREFIX_PATH="C:/boost;C:/openssl;C:/zlib;C:/curl;C:/protobuf;C:/googletest;C:/dlfcn-win32" . #This will generate pulsar-cpp.sln. Open this in Visual Studio and build the desired configurations.

Checks

Client libraries are available in the following places.
pulsar-client-cpp/build/lib/Release/pulsar.lib pulsar-client-cpp/build/lib/Release/pulsar.dll 

Examples

Add windows environment paths.
pulsar-client-cpp/build/lib/Release pulsar-client-cpp/vcpkg_installed 
Examples are available in.
pulsar-client-cpp/build/examples/Release 

Tests

# Execution # Start standalone broker ./pulsar-test-service-start.sh # Run the tests cd tests ./pulsar-tests # When no longer needed, stop standalone broker ./pulsar-test-service-stop.sh

Requirements for Contributors

It's required to install LLVM for clang-tidy and clang-format. Pulsar C++ client use clang-format 6.0+ to format files. make format automatically formats the files.

We welcome contributions from the open source community, kindly make sure your changes are backward compatible with GCC 4.8 and Boost 1.53.