BroadcastChan.Throw

Re-export of Broadcast that replaces BroadcastChan.writeBChan and BroadcastChan.readBChan with versions that throw an exception, rather than returning results that the user has to inspect to check for success.

Documentation

data BChanError

Exception type for BroadcastChan operations.

Constructors

WriteFailed

Attempted to write to closed BroadcastChan

ReadFailed

Attempted to read from an empty closed BroadcastChan

Instances

Eq BChanError

Methods

(==) :: BChanError -> BChanError -> Bool

(/=) :: BChanError -> BChanError -> Bool

Read BChanError

Methods

readsPrec :: Int -> ReadS BChanError

readList :: ReadS [BChanError]

readPrec :: ReadPrec BChanError

readListPrec :: ReadPrec [BChanError]

Show BChanError

Methods

showsPrec :: Int -> BChanError -> ShowS

show :: BChanError -> String

showList :: [BChanError] -> ShowS

Exception BChanError

Methods

toException :: BChanError -> SomeException

fromException :: SomeException -> Maybe BChanError

displayException :: BChanError -> String

readBChan :: BroadcastChan Out a -> IO a

Like readBChan, but throws a ReadFailed exception when reading from a closed and empty BroadcastChan.

writeBChan :: BroadcastChan In a -> a -> IO ()

Like writeBChan, but throws a WriteFailed exception when writing to closed BroadcastChan.

module BroadcastChan