This is the source code repository of the Software Technology Lab (STLab).

ASL libraries will be migrated here in the stlab namespace, new libraries will be created here.

Branch states

• main:

Content

Concurrency

This library provides futures and channels, high level abstractions for implementing algorithms that eases the use of multiple CPU cores while minimizing contention. This library solves several problems of the C++11 and C++17 TS futures.

Documentation

The complete documentation is available on the STLab home page.

Release changelogs are listed in CHANGES.md.

Supported Platforms

• All OS that have a C++14 compliant compiler

Requirements

• C++14 Compiler -- Visual Studio 2017 (>= 15.9.0), Visual Studio 2019 -- gcc (>= 7) -- clang (>= 6)
• boost.optional and boost.variant if the compiler's library does not provide them
• boost.test only for the unit tests

Building

First, you will need the following tools:

• conan (download)
• CMake (download)
• (Mac) Xcode 8.2.1 or later
• (MSVC) Visual Studio 2017.9 or later

conan and cmake are available on the Mac via Homebrew. cmake is available on Windows via scoop.

Once they're set up, run either setup_xcode.sh or setup_msvc.bat for the platform of your choice. It will setup all necessary library dependencies and create the platform-specific project file in the ./build/ directory.

Microsoft Windows Platform Build Notes:

• If you are using conan for the first time, add --build missing to conan command call in setup_msvc.bat script
• Use administrator command prompt if you get issues in manifest creation during setup_msvc.bat run (ex: mt : general error c101008d)

Upcomming Changes in Version 2

• Currently we are redesigning the interface of the future class. We will make the associated executor of a task more explicit by removing the implicit "inheritance" of the executors from the previous future. So a continuation will not get automatically the same executor from its predecessor. If non is provided, then it will be automatically be executed via the immediate_executor.
• As well we will remove all .then() and .recover() functions from the future interface. Only the operator|() and operator^() will remain. So the pipe notation, as it is comming with C++20 ranges, will become the only choice. Obviously this will be a breaking change.
• In parallel we think about changing the then former recover() function signature, see issue #263.