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Create isclosing and isclosed methods #53426

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Create isclosing and isclosed methods #53426

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a946ad7
Create isclosing and isclosed methods
mkitti Feb 22, 2024
b04dc47
Document `Based.isclosed`.
mkitti Feb 22, 2024
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17 changes: 16 additions & 1 deletion base/stream.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -383,8 +383,23 @@ function isopen(x::Union{LibuvStream, LibuvServer})
return x.status != StatusClosed
end

function isclosing(x::Union{LibuvStream, LibuvServer})
return x.status == StatusClosing
end

"""
isclosed(x)

Determine whether a stream has been closed. Return true if the steram has been
closed. In general, `isclosed(x) == !isopen(x)`.
"""
function isclosed(x::Union{LibuvStream, LibuvServer})
return x.status == StatusClosed
end
isclosed(x) = !isopen(x)

function check_open(x::Union{LibuvStream, LibuvServer})
if !isopen(x) || x.status == StatusClosing
if !isopen(x) || isclosing(x)
throw(IOError("stream is closed or unusable", 0))
end
end
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