libQUIC

C++ library for multi-stream QUIC implementations.

Overview

"Bleeding-edge" is tracked in the dev branch, while the stable branch is intermittently updated as new features and capabilities are added that are suitable for production use.

Building

Requirements:

• CMake 3.13+
• C++20 compiler (such as clang >= 10 or GCC >= 10)
• gnutls (>= 3.7.2)
• libevent (>= 2.1)

Building from Source

Clone the repository as usual, including submodules (either by passing --recurse-submodules to git clone, or else running git submodule update --init --recursive the top-level project directory).

To compile the library run the following commands from the project source directory:

mkdir -p build
cd build
cmake ..
make -j8  # Tweak as needed for the desired build parallelism

Various options can be added to the cmake .. line; some common options are:

• -DCMAKE_BUILD_TYPE=Release to make a release build
• -DBUILD_STATIC_DEPS=ON to build and bundle static versions of dependencies.
• -DWITH_LTO=OFF to disable link-time optimizations.
• -DWARNINGS_AS_ERRORS=ON to turn compiler warnings into fatal errors.
• -DBUILD_TESTS=OFF to disable building the test suite.
• -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ to use a specific compiler
• -DCMAKE_EXPORT_COMPILE_COMMANDS=ON to generate a build/compile_commands.json (used by various IDEs for detecting compilation settings and flags).
• -GNinja to use ninja for the build instead of make; this also requires changing the make -j8 line to ninja.

Testing

Unit tests use Catch2 as a formal unit-test framework. Unit tests are built by default as part of the standard CMake build logic (unless being built as a subdirectory of another CMake project) and can be invoked through the build/tests/alltests binary.

Building the tests also build ./tests/speedtest-client and ./tests/speedtest-server which can be used to test network performance of libquic streams.