mirror of
https://github.com/20kdc/OC-KittenOS.git
synced 2024-11-15 06:58:05 +11:00
43 lines
966 B
Lua
43 lines
966 B
Lua
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-- This is released into the public domain.
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-- No warranty is provided, implied or otherwise.
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return function(dev, file, mode)
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local n = "rb"
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if mode then n = "wb" end
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local handle = dev.open(file, n)
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local open = true
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local function closer()
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if not open then return end
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open = false
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pcall(function()
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dev.close(handle)
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end)
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end
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if not mode then
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return {
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close = closer,
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read = function (len)
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if len == "*a" then
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local ch = ""
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local c = dev.read(handle, neo.readBufSize)
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while c do
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ch = ch .. c
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c = dev.read(handle, neo.readBufSize)
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end
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return ch
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end
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if type(len) ~= "number" then error("Length of read must be number or '*a'") end
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return dev.read(handle, len)
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end
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}, closer
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else
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return {
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close = closer,
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write = function (txt)
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if type(txt) ~= "string" then error("Write data must be string-bytearray") end
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return dev.write(handle, txt)
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end
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}, closer
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end
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end
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