semaphore-compat

semaphore-compat provides a cross-platform implementation of system semaphores that abstracts over the unix and Win32 libraries.

It supports:

• Creating (createSemaphore, freshSemaphore), opening (openSemaphore) and closing (destroySemaphore) semaphores.
• Waiting on a semaphore:
  • without blocking with tryWaitOnSemaphore,
  • blocking forever, with waitOnSemaphore,
  • blocking, in a separate thread and allowing interruption, with forkWaitOnSemaphoreInterruptible and interruptWaitOnSemaphore.
• Releasing tokens to a semaphore (releaseSemaphore).
• Querying the semaphore for its current value (getSemaphoreValue).