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Merge pull request #240 from smartdevicelink/release/8.0.0
Release 8.0.0
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,132 @@ | ||
| --- Module which provides transport level interface for emulate connection to SDL from HMI for streaming | ||
| -- | ||
| -- *Dependencies:* `qt`, `network` | ||
| -- | ||
| -- *Globals:* `qt`, `network` | ||
| -- @module Stream | ||
| -- @copyright [SmartDeviceLink Consortium](https://smartdevicelink.com/consortium/) | ||
| -- @license <https://github.com/smartdevicelink/sdl_core/blob/master/LICENSE> | ||
|
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| local ATF = require("ATF") | ||
|
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| local Stream = { } | ||
|
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| --- Type which provides transport level interface for emulate connection with SDL from HMI | ||
| -- @type Connection | ||
|
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| --- Construct instance of Connection type | ||
| -- @tparam string host SDL host address | ||
| -- @tparam number port SDL port | ||
| -- @tparam number bytes Number of bytes to receive before calling callback | ||
| -- @tparam function func Callback when stream ends or number of bytes are received | ||
| -- @treturn Connection Constructed instance | ||
| function Stream.TcpConnection(host, port, bytes, func) | ||
| local res = | ||
| { | ||
| host = host, | ||
| port = port, | ||
| callback = func, | ||
| callbackBytes = bytes, | ||
| receivedBytes = 0, | ||
| data = {} | ||
| } | ||
|
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| res.socket = network.TcpClient() | ||
| res.qtproxy = qt.dynamic() | ||
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| local function flushStreamTcpData() | ||
| local file = io.open("tcp_stream.out","w+b") | ||
| local streamedData = table.concat(res.data) | ||
| file:write(streamedData) | ||
| file:close() | ||
| end | ||
|
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| local function processInputData(data) | ||
| local tableIndex = #res.data | ||
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| if tableIndex == 0 then | ||
| -- trim off HTTP header | ||
| local headerDelimeter = "\r\n\r\n" | ||
| local headerSize = data:find(headerDelimeter) + headerDelimeter:len() | ||
| data = string.sub(data, headerSize) | ||
| end | ||
|
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| table.insert(res.data, data); | ||
| res.receivedBytes = res.receivedBytes + data:len() | ||
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| if res.callbackBytes ~= -1 and res.receivedBytes >= res.callbackBytes then | ||
| flushStreamTcpData() | ||
| res.callback(true, res.callbackBytes, "tcp_stream.out") | ||
| res.callbackBytes = -1 | ||
| end | ||
| end | ||
|
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| function res.qtproxy.readyRead() | ||
| while true do | ||
| local data = res.socket:read(81920) | ||
| if data == '' or type(data) ~= "string" then break end | ||
| processInputData(data) | ||
| end | ||
| end | ||
|
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| res.qtproxy.disconnected = function() | ||
| if res.receivedBytes < res.callbackBytes then | ||
| flushStreamTcpData() | ||
| res.callback(false, res.receivedBytes, "tcp_stream.out") | ||
| end | ||
| end | ||
|
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| qt.connect(res.socket, "disconnected()", res.qtproxy, "disconnected()") | ||
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| res.qtproxy.connected = function() print("HMI connected to stream") end | ||
| qt.connect(res.socket, "connected()", res.qtproxy, "connected()") | ||
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| qt.connect(res.socket, "readyRead()", res.qtproxy, "readyRead()") | ||
| res.socket:connect(host, port, config.connectionTimeout) | ||
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| return res | ||
| end | ||
|
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| --- Construct instance of Connection type | ||
| -- @tparam string pipe Path to pipe of data | ||
| -- @tparam number bytes Number of bytes to receive before calling callback | ||
| -- @tparam function func Callback when stream ends or number of bytes are received | ||
| -- @treturn Connection Constructed instance | ||
| function Stream.PipeConnection(pipe, bytes, func) | ||
| local res = | ||
| { | ||
| callback = func, | ||
| callbackBytes = bytes, | ||
| receivedBytes = 0, | ||
| } | ||
| local pipeContentFileName = "pipe_stream.out" | ||
| local command = "head -c " .. tostring(bytes) .. " " .. pipe .. " > " .. pipeContentFileName | ||
| if config.remoteConnection.enabled then | ||
| ATF.remoteUtils.app:ExecuteCommand(command) | ||
| local _, isExists = ATF.remoteUtils.file:IsFileExists(".", pipeContentFileName) | ||
| if isExists then | ||
| local isSuccess, path = ATF.remoteUtils.file:GetFile(".", pipeContentFileName) | ||
| if isSuccess then | ||
| ATF.remoteUtils.file:DeleteFile(".", pipeContentFileName) | ||
| local file = io.open(path, "rb") | ||
| res.receivedBytes = file:seek("end") | ||
| file:close() | ||
| pipeContentFileName = path | ||
| else | ||
| pipeContentFileName = "" | ||
| end | ||
| else | ||
| pipeContentFileName = "" | ||
| end | ||
| else | ||
| os.execute(command) | ||
| local file = io.open(pipeContentFileName, "rb") | ||
| res.receivedBytes = file:seek("end") | ||
| file:close() | ||
| end | ||
| local success = res.receivedBytes >= res.callbackBytes | ||
| res.callback(success, res.receivedBytes, pipeContentFileName) | ||
| return res | ||
| end | ||
|
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| return Stream |
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