0.5.0

CHANGES:

• Major additions, changes, bug fixes, improvements, and restructuring
  (@polytypic, @c-cube)

  • Additions:

    • Minimalistic Cohttp implementation
    • Implicitly propagated Flock of fibers for structured concurrency
    • Option to terminate Bundle and Flock on return
    • Event abstraction
    • Synchronization and communication primitives:
      • Incremental variable or Ivar
      • Countdown Latch
      • Semaphore
      • Stream of events
    • Multi-producer, multi-consumer lock-free queue optimized for schedulers
    • Multithreaded (work-stealing) FIFO scheduler
    • Support quota for FIFO based schedulers
    • Transactional interface for atomically completing multiple Computations

  • Changes:

    • Redesigned resource management based on ('r -> 'a) -> 'a functions
    • Redesigned spawn interface allowing FLS entries to be populated before
      spawn
    • Introduced concept of fatal errors, which must terminate the scheduler or
      the whole program
    • Simplified FLS interface

  • Improvements:

    • Signficantly reduced per fiber memory usage of various sample schedulers

  • Picos has now been split into multiple packages and libraries:

    • pkg: picos
      • lib: picos
      • lib: picos.domain
      • lib: picos.thread
    • pkg: picos_aux
      • lib: picos_aux.htbl
      • lib: picos_aux.mpmcq
      • lib: picos_aux.mpscq
      • lib: picos_aux.rc
    • pkg: picos_lwt
      • lib: picos_lwt
      • lib: picos_lwt.unix
    • pkg: picos_meta (integration tests)
    • pkg: picos_mux
      • lib: picos_mux.fifo
      • lib: picos_mux.multififo
      • lib: picos_mux.random
      • lib: picos_mux.thread
    • pkg: picos_std
      • lib: picos_std.event
      • lib: picos_std.finally
      • lib: picos_std.structured
      • lib: picos_std.sync
    • pkg: picos_io
      • lib: picos_io
      • lib: picos_io.fd
      • lib: picos_io.select
    • pkg: picos_io_cohttp
      • lib: picos_io_cohttp