close(::Channel)
close(Channel)
Closes a channel. An exception is thrown by:
put!on a closed channel.take!andfetchon an empty, closed channel.
Examples
-
Close a file stream:
julia> file = open("data.txt"); julia> close(file)This example closes the file stream
fileafter performing a flush operation. -
Close a network stream:
julia> sock = connect("localhost", 8080); julia> close(sock)It closes the network stream
sockafter flushing any pending data. - Close a stream and handle errors:
julia> stream = open("output.txt", "w"); julia> try # Perform some operations with the stream finally close(stream) endIn this example, the
closefunction is used in afinallyblock to ensure that the stream is closed even if an error occurs during the operations performed with the stream.
Common mistake example:
julia> close(5)
ERROR: MethodError: no method matching close(::Int64)
In this example, the close function is called with an argument that is not a valid stream. Make sure to pass a valid stream object to the close function to avoid this error.
See Also
Channel, close, put!, take!,User Contributed Notes
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