53 lines
1.4 KiB
Lua
53 lines
1.4 KiB
Lua
-- DOC: http://w3.impa.br/~diego/software/luasocket/tcp.html
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-- module table
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local luasocket = {}
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local socket = require("socket")
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-- Open network connection to .host and .port in conn table
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-- Store opened socket to conn table
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-- Returns true on success, or false and error text on failure
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function luasocket.connect(conn)
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local sock, err = socket.connect(conn.host, conn.port)
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if not sock then
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return false, "socket.connect failed: "..err
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end
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conn.sock = sock
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return true
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end
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-- Shutdown network connection
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function luasocket.shutdown(conn)
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conn.sock:shutdown()
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end
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-- Send data to network connection
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function luasocket.send(conn, data, i, j)
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local ok, err = conn.sock:send(data, i, j)
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-- print(" luasocket.send:", ok, err, require("mqtt.tools").hex(data))
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return ok, err
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end
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-- Receive given amount of data from network connection
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function luasocket.receive(conn, size)
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local ok, err = conn.sock:receive(size)
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-- if ok then
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-- print(" luasocket.receive:", size, require("mqtt.tools").hex(ok))
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-- elseif err ~= "timeout" then
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-- print(" luasocket.receive:", ok, err)
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-- end
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return ok, err
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end
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-- Set connection's socket to non-blocking mode and set a timeout for it
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function luasocket.settimeout(conn, timeout)
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conn.timeout = timeout
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conn.sock:settimeout(timeout, "t")
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end
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-- export module table
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return luasocket
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-- vim: ts=4 sts=4 sw=4 noet ft=lua
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