26 lines
1.3 KiB
JavaScript
26 lines
1.3 KiB
JavaScript
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// 构造发送包，传入参数nowData和resendData
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// nowData为当前数据段，resendData为重发数据段
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// nowData和resendData都为数组，数组元素的内容为：信息类型编号 + 信息内容长度 + 信息内容
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module.exports = (app, nowData, resendData) => {
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const utils = app.middleware.utils;
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utils.intrinsic.packageNumber++;
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let now = new Date();
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let sendTime = utils.packageItem(2, now.getFullYear()) +
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utils.packageItem(1, now.getMonth() + 1) +
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utils.packageItem(1, now.getDate());
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let packageMsg = utils.packageItem(2, app.config.socketClient.id) +
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utils.packageItem(2, app.config.socketClient.destination) +
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utils.packageItem(4, utils.intrinsic.packageNumber) +
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utils.packageItem(1, nowData.length) +
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utils.packageItem(2, utils.arrItemLength(nowData)) +
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(resendData ? '01' : '00') +
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(resendData ? utils.packageItem(1, resendData.length) : '00') +
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(resendData ? utils.packageItem(2, utils.arrItemLength(resendData)) : '0000') +
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sendTime +
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utils.arrTotalItem(nowData) +
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(resendData ? sendTime : '') +
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(resendData ? utils.arrTotalItem(resendData) : '') +
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utils.intrinsic.separateIdentifiers;
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const buffer = Buffer.from(packageMsg, 'hex');
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return buffer;
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};
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