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Within LTS Haskell 8.12 (ghc-8.0.2)

  1. withTimeout :: (MonadIO m, Typeable a, Serialize a) => Integer -> STM a -> Workflow m (Maybe a)

    Workflow Control.Workflow

    Return either the result of the STM conputation or Nothing in case of timeout. The computation can retry This timeout is persistent. This means that the counter is initialized in the first call to getTimeoutFlag no matter if the workflow is restarted. The time during which the worlkflow has been stopped count also. Thus, the wait time can exceed the time between failures. when timeout is 0 it means no timeout.

  2. callWithTimeout :: CallSite -> Name -> Method -> Int -> Message -> IO (Maybe Message)

    courier Network.RPC

    Call a method with the provided arguments on the recipient with the given name. A request will be made through the CallSite's Endpoint, and then the caller will wait until a matching response is received. If a response is received within the provided timeout (measured in microseconds), then return the value wrapped in Just; otherwise, if the timeout expires before the call returns, then return 'Nothing.

  3. gcallWithTimeout :: CallSite -> [Name] -> Method -> Int -> Message -> IO (Map Name (Maybe Message))

    courier Network.RPC

    Group call or RPC but with a timeout: call a method with the provided arguments on all the recipients with the given names. A request will be made through the CallSite's Endpoint, and then the caller will wait until all matching responses are received or the timeout occurs. The returned Map has a key for every Name that was a target of the call, and the value of that key will be Nothing if no response was received before the timeout, or Just value if a response was received.

  4. reserveJobWithTimeout :: BeanstalkServer -> Int -> IO Job

    hbeanstalk Network.Beanstalk

    Reserve a job from the watched tube list, blocking for the specified number of seconds or until a job is returned. If no jobs are found before the timeout value, a TimedOutException will be thrown. If another reserved job is about to exceed its time-to-run, a DeadlineSoonException will be thrown.

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