Marl
Marl is a hybrid thread / fiber task scheduler written in C++ 11.
About
Marl is a C++ 11 library that provides a fluent interface for running tasks across a number of threads.
Marl uses a combination of fibers and threads to allow efficient execution of tasks that can block, while keeping a fixed number of hardware threads.
Marl supports Windows, macOS, Linux, Fuchsia and Android (arm, aarch64, ppc64 (ELFv2), x86 and x64).
Marl has no dependencies on other libraries (with an exception on googletest for building the optional unit tests).
Building
Marl contains many unit tests and examples that can be built using CMake.
Unit tests require fetching the googletest external project, which can be done by typing the following in your terminal:
cd <path-to-marl>
git submodule update --init
Linux and macOS
To build the unit tests and examples, type the following in your terminal:
cd <path-to-marl>
mkdir build
cd build
cmake .. -DMARL_BUILD_EXAMPLES=1 -DMARL_BUILD_TESTS=1
make
The resulting binaries will be found in <path-to-marl>/build
Windows
Marl can be built using Visual Studio 2019's CMake integration.
Using Marl in your CMake project
You can build and link Marl using add_subdirectory() in your project's CMakeLists.txt file:
set(MARL_DIR <path-to-marl>) # example <path-to-marl>: "${CMAKE_CURRENT_SOURCE_DIR}/third_party/marl"
add_subdirectory(${MARL_DIR})
This will define the marl library target, which you can pass to target_link_libraries():
target_link_libraries(<target> marl) # replace <target> with the name of your project's target
You may also wish to specify your own paths to the third party libraries used by marl.
You can do this by setting any of the following variables before the call to add_subdirectory():
set(MARL_THIRD_PARTY_DIR <third-party-root-directory>) # defaults to ${MARL_DIR}/third_party
set(MARL_GOOGLETEST_DIR <path-to-googletest>) # defaults to ${MARL_THIRD_PARTY_DIR}/googletest
add_subdirectory(${MARL_DIR})
Note: This is not an officially supported Google product