Google Git
Sign in
fuchsia / third_party / swift-corelibs-libdispatch / 0652ef88df7a0d31e14f1f4324974b2655dcc788
commit0652ef88df7a0d31e14f1f4324974b2655dcc788[log] [tgz]
authorDavid Grove <groved@us.ibm.com>Tue Jul 25 16:21:32 2017 -0400
committerDavid Grove <groved@us.ibm.com>Fri Jul 28 15:00:10 2017 -0400
treeda39c5d55c77d4549c777c847fac1841bef76147
parent4e0c3023198e61b2dc60008ecfac144a06ed9a6d [diff]
Enable additional compiler warnings for CMake build

1. add a CMake module to define additional warning flags to enable
   when compiling dispatch.

2. enable the additional warning flags by default for CMake

3. match autotools behavior of not including the BSD_OVERLAY
   when compiling the dispatch_c99 test case. This avoids
   a warning about __printflike being redefined when compiling
   this test case with the expanded set of warning flags.
3 files changed
tree: da39c5d55c77d4549c777c847fac1841bef76147
  1. cmake/
  2. config/
  3. dispatch/
  4. libdispatch.xcodeproj/
  5. m4/
  6. man/
  7. os/
  8. private/
  9. resolver/
  10. src/
  11. tests/
  12. tools/
  13. xcodeconfig/
  14. xcodescripts/
  15. .gitignore
  16. .gitmodules
  17. autogen.sh
  18. CMakeLists.txt
  19. configure.ac
  20. CONTRIBUTING.md
  21. INSTALL.md
  22. LICENSE
  23. Makefile.am
  24. PATCHES
  25. README.md
  26. 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