60 lines
1.3 KiB
Crystal
60 lines
1.3 KiB
Crystal
require "./lowlevel"
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class IPC::Message
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def self.to_packet (user_type : Int, message : String)
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payload = Bytes.new (6 + message.to_slice.size)
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# true start
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payload[0] = 1.to_u8
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IO::ByteFormat::NetworkEndian.encode message.to_slice.size, (payload + 1)
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# second part: user message
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payload[5] = user_type.to_u8
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(payload + 6).copy_from message.to_slice
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return payload
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end
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getter mtype : UInt8 # libipc message type
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property type : UInt8 # libipc user message type
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property payload : Bytes
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def initialize(message : Pointer(LibIPC::Message))
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if message.null?
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@mtype = LibIPC::MessageType::Error.to_u8
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@type = 0
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@payload = Bytes.new "".to_unsafe, 0
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else
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m = message.value
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@mtype = m.type
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@type = m.user_type
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@payload = Bytes.new m.payload, m.length
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end
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end
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def initialize(message : LibIPC::Message)
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initialize pointerof(message)
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end
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def initialize(mtype, type, payload : Bytes)
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@mtype = mtype.to_u8
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@type = type
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@payload = payload
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end
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def initialize(mtype, type, payload : String)
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initialize(mtype, type, Bytes.new(payload.to_unsafe, payload.bytesize))
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end
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def to_packet
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IPC::Message.to_packet @type, String.new(@payload)
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end
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def to_s
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"(internal) type #{@mtype}, (user) type #{@type}, payload #{String.new @payload}"
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end
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end
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