最近看到一个.pcs的文件，是用C语言写的，里面好多函数都没见过，想请教下论坛里见多识广的大虾们，给小弟点提示，不胜感激涕零

    if((fpub_initPComp(&iXmlhandle, &pCOMMAREA)) < 0)
        ERRCICSRET(MSG_SYS_FAIL, MSG_COMP_INIT, "", "");

    WrtLog(iXmlhandle, INFO, "*************XJ_310001组件开始*************");

    Ret = xml_GetElement(iXmlhandle, "/PRIVATE/AGENTCODE", rAGENTCODE, sizeof(rAGENTCODE));
    rtnMsg1(iXmlhandle, pCOMMAREA, Ret, "/PRIVATE/AGENTCODE", "代理业务代码", rAGENTCODE);

    memset(szScriptFile, 0x00, sizeof(szScriptFile));
    sprintf(szScriptFile, "%s/31000100", rAGENTCODE);
    memset(szScriptFile1, 0x00, sizeof(szScriptFile1));
    sprintf(szScriptFile1, "%s/def/%s.def", getenv("AHA_HOME"), szScriptFile);
    WrtLog(iXmlhandle, DEBUG, "%s = [%s]\0", "前脚本名称", szScriptFile1);
    if(access(szScriptFile1, F_OK) == -1){
    }
        else if(access(szScriptFile1, R_OK) == -1){
        }
        else
        {
            WrtLog(iXmlhandle, INFO, "**开始执行前脚本**");
            if((Ret = ServerMain_XML(szScriptFile, iXmlhandle)) < 0)
            {
            fpub_SetCompmsg(iXmlhandle, RETC_SYSE, MSG_SYS_FAIL);
            fpub_freeComp(iXmlhandle, pCOMMAREA, -1);
            ERRCICSRET(MSG_SYS_FAIL, "", "XJ_310001组件执行前脚本失败", itoa(Ret));
        }
    }
麻烦知道的大虾详细的给我解释下，小弟在此先谢过了

还想问一下各位，pcs是什么意思，我在百度上根本搜不出来