消息（命令）为XML格式数据流的通讯处理

战舰水手 · 发表于 2015-10-18 15:27:25

[mw_shl_code=c,true]/** ***************************************************************************** ** ** @brief Send a SET_READER_CONFIG message that resets the ** reader to factory defaults. ** ** NB: The ResetToFactoryDefault semantics vary between readers. ** It might have no effect because it is optional. ** ** The message is: ** ** <SET_READER_CONFIG MessageID='101'> ** <ResetToFactoryDefault>1</ResetToFactoryDefault> ** </SET_READER_CONFIG> ** ** @return ==0 Everything OK ** !=0 Something went wrong ** *****************************************************************************/ int resetConfigurationToFactoryDefaults (void) { LLRP_tSSET_READER_CONFIG Cmd = { .hdr.elementHdr.pType = &LLRP_tdSET_READER_CONFIG, .hdr.MessageID = 101, .ResetToFactoryDefault = 1 }; LLRP_tSMessage * pRspMsg; LLRP_tSSET_READER_CONFIG_RESPONSE *pRsp; /* * Send the message, expect the response of certain type */ pRspMsg = transact(&Cmd.hdr); if(NULL == pRspMsg) { /* transact already tattled */ return -1; } /* * Cast to a SET_READER_CONFIG_RESPONSE message. */ pRsp = (LLRP_tSSET_READER_CONFIG_RESPONSE *) pRspMsg; /* * Check the LLRPStatus parameter. */ if(0 != checkLLRPStatus(pRsp->pLLRPStatus, "resetConfigurationToFactoryDefaults")) { /* checkLLRPStatus already tattled */ freeMessage(pRspMsg); return -1; } /* * Done with the response message. */ freeMessage(pRspMsg); /* * Tattle progress, maybe */ if(g_Verbose) { printf("INFO: Configuration reset to factory defaults\n"); } /* * Victory. */ return 0; }[/mw_shl_code]

在注释里面可以看到通讯的消息格式为XML消息流格式，请问在MDK中可以如上解析这条XML消息？

战舰水手 · 发表于 2015-10-18 15:29:21

一些乱七八糟的不用看，主要是以下这个
LLRP_tSSET_READER_CONFIG    Cmd = {
        .hdr.elementHdr.pType   = &LLRP_tdSET_READER_CONFIG,
        .hdr.MessageID          = 101,
        .ResetToFactoryDefault  = 1
    };
为什么hdr前面有个点，啥意思