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https://github.com/idris-lang/Idris2.git
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5ed27947cb
Conditional variables with timeout in Chez didn't work, so changed to a consistent meaning of the timeout (microseconds). Also fix linearity of unsafePerformIO.
85 lines
2.3 KiB
Idris
85 lines
2.3 KiB
Idris
module System.Concurrency.Raw
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-- At the moment this is pretty fundamentally tied to the Scheme RTS
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-- Given that different back ends will have entirely different threading
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-- models, it might be unavoidable, but we might want to think about possible
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-- primitives that back ends should support.
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%foreign "scheme:blodwen-thisthread"
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prim__threadID : PrimIO ThreadID
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%foreign "scheme:blodwen-set-thread-data"
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prim__setThreadData : {a : Type} -> a -> PrimIO ()
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%foreign "scheme:blodwen-get-thread-data"
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prim__getThreadData : (a : Type) -> PrimIO a
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-- Mutexes and condition variables.
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export
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threadID : IO ThreadID
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threadID = primIO prim__threadID
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export
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setThreadData : {a : Type} -> a -> IO ()
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setThreadData val = primIO (prim__setThreadData val)
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export
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getThreadData : (a : Type) -> IO a
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getThreadData a = primIO (prim__getThreadData a)
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export
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data Mutex : Type where [external]
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%foreign "scheme:blodwen-mutex"
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prim__makeMutex : PrimIO Mutex
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%foreign "scheme:blodwen-lock"
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prim__mutexAcquire : Mutex -> PrimIO ()
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%foreign "scheme:blodwen-unlock"
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prim__mutexRelease : Mutex -> PrimIO ()
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export
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makeMutex : IO Mutex
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makeMutex = primIO prim__makeMutex
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export
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mutexAcquire : Mutex -> IO ()
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mutexAcquire m = primIO (prim__mutexAcquire m)
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export
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mutexRelease : Mutex -> IO ()
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mutexRelease m = primIO (prim__mutexRelease m)
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export
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data Condition : Type where [external]
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%foreign "scheme:blodwen-condition"
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prim__makeCondition : PrimIO Condition
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%foreign "scheme:blodwen-condition-wait"
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prim__conditionWait : Condition -> Mutex -> PrimIO ()
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%foreign "scheme:blodwen-condition-wait-timeout"
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prim__conditionWaitTimeout : Condition -> Mutex -> Int -> PrimIO ()
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%foreign "scheme:blodwen-condition-signal"
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prim__conditionSignal : Condition -> PrimIO ()
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%foreign "scheme:blodwen-condition-broadcast"
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prim__conditionBroadcast : Condition -> PrimIO ()
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export
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makeCondition : IO Condition
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makeCondition = primIO prim__makeCondition
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export
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conditionWait : Condition -> Mutex -> IO ()
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conditionWait c m = primIO (prim__conditionWait c m)
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||| Timeout is in microseconds
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export
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conditionWaitTimeout : Condition -> Mutex -> Int -> IO ()
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conditionWaitTimeout c m t = primIO (prim__conditionWaitTimeout c m t)
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export
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conditionSignal : Condition -> IO ()
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conditionSignal c = primIO (prim__conditionSignal c)
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export
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conditionBroadcast : Condition -> IO ()
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conditionBroadcast c = primIO (prim__conditionBroadcast c)
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