60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
//
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// Created by dongl on 23-6-20.
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//
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#include "IMDataPacket.h"
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IMDataPacket::IMDataPacket(mp::MP_TYPE type, mp::im::msg_data* data) :
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Mph(type),
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MsgData(data) {
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}
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IMDataPacket::IMDataPacket(mp::MP_TYPE type, mp::MP_SUB_TYPE subType,
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mp::MP_SUB_TYPE sessionType, uint64_t messageId,
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time_t time, uint64_t account, std::string &imMsgData) :
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Mph(type),
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MsgData(subType, sessionType,messageId, time, account,imMsgData) {
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}
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IMDataPacket::IMDataPacket(mp::MP_TYPE type, mp::MP_SUB_TYPE subType,
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uint64_t messageId, time_t time) :
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Mph(type),
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MsgData(subType, messageId, time) {
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}
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std::string IMDataPacket::packet() {
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// 包体长度
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mph->set_mpb_size(data->ByteSizeLong());
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// im_data_packet 的 L 为 16bit
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std::string temp;
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// 判断是否超过数据包限制大小 一个包 大概0.06MB
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if (mph->ByteSizeLong() + data->ByteSizeLong() > 65535) {
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return "超过数据包限制大小，无法构造，长度请低于65535， 或者分包";
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}
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// L
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// temp.push_back(mph->ByteSizeLong());
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if (mph->ByteSizeLong() + data->ByteSizeLong() <= 255) {
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temp.push_back(0);
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temp.push_back(mph->ByteSizeLong());
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} else {
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short len = mph->ByteSizeLong() + data->ByteSizeLong();
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char LTV_L[2];
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memcpy(LTV_L, &len, sizeof(LTV_L));
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temp.append(LTV_L);
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}
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// T
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mph->AppendToString(&temp);
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// V
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data->AppendToString(&temp);
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return temp;
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}
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