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fuchsia / third_party / swift-corelibs-libdispatch / e0dced06ca5661b7bb10c525c0afe8447a134f0b
commite0dced06ca5661b7bb10c525c0afe8447a134f0b[log] [tgz]
authorDaniel Rodríguez Troitiño <danielrodriguez@fb.com>Tue Mar 05 14:26:11 2019 -0800
committerDaniel Rodríguez Troitiño <danielrodriguez@fb.com>Tue Mar 05 14:26:11 2019 -0800
tree06aa192f7e8d4deb40030e8b4b1d159ef82d9904
parentbc00e13bc7e912d4d9028df2a0b2bfa4c0e11323 [diff]
[cmake] Skip regex when CMAKE_STATIC_LIBRARY_PREFIX is empty.

In platforms like Windows, there's no prefix for static libraries.
Interpolating it in the regex will end up with a regex "^", which seems
not to be valid. Since the regex was removing the prefix, we can simply
skip the operation and the result will be the same.

Also do the same for CMAKE_STATIC_LIBRARY_SUFFIX, even if in that case,
Windows will have a value (but if it is empty, it will fail trying to
create the regex).
1 file changed
tree: 06aa192f7e8d4deb40030e8b4b1d159ef82d9904
  1. cmake/
  2. dispatch/
  3. libdispatch.xcodeproj/
  4. man/
  5. os/
  6. private/
  7. resolver/
  8. src/
  9. tests/
  10. tools/
  11. xcodeconfig/
  12. xcodescripts/
  13. .gitignore
  14. .gitmodules
  15. .mailmap
  16. CMakeLists.txt
  17. CONTRIBUTING.md
  18. INSTALL.md
  19. LICENSE
  20. PATCHES
  21. README.md
  22. TESTING.md
README.md

Grand Central Dispatch

Grand Central Dispatch (GCD or libdispatch) provides comprehensive support for concurrent code execution on multicore hardware.

libdispatch is currently available on all Darwin platforms. This project aims to make a modern version of libdispatch available on all other Swift platforms. To do this, we will implement as much of the portable subset of the API as possible, using the existing open source C implementation.

libdispatch on Darwin is a combination of logic in the xnu kernel alongside the user-space Library. The kernel has the most information available to balance workload across the entire system. As a first step, however, we believe it is useful to bring up the basic functionality of the library using user-space pthread primitives on Linux. Eventually, a Linux kernel module could be developed to support more informed thread scheduling.

Project Status

A port of libdispatch to Linux has been completed. On Linux, since Swift 3, swift-corelibs-libdispatch has been included in all Swift releases and is used by other swift-corelibs projects.

Opportunities to contribute and on-going work include:

  1. Develop a test suite for the Swift APIs of libdispatch.
  2. Enhance libdispatch as needed to support Swift language evolution and the needs of the other Core Libraries projects.

Build and Install

For detailed instructions on building and installing libdispatch, see INSTALL.md

Testing

For detailed instructions on testing libdispatch, see TESTING.md