前提
成功创建：集群，表格组，PLAYERONLINECNT 表
<?xml version="1.0" encoding="GBK" standalone="yes" ?><metalib name="tcaplus_tb" tagsetversion="1" version="1"><struct name="PLAYERONLINECNT" version="1" primarykey="TimeStamp,GameSvrID" splittablekey="TimeStamp"><entry name="TimeStamp" type="uint32" desc="单位为分钟" /><entry name="GameSvrID" type="string" size="64" /><entry name="GameAppID" type="string" size="64" desc="gameapp id" /><entry name="OnlineCntIOS" type="uint32" defaultvalue="0" desc="ios在线人数" /><entry name="OnlineCntAndroid" type="uint32" defaultvalue="0" desc="android在线人数" /><entry name="BinaryLen" type="smalluint" defaultvalue="1" desc="数据来源数据长度；长度为0时，忽略来源检查"/><entry name="binary" type="tinyint" desc="二进制" count= "1000" refer="BinaryLen" /><entry name="binary2" type="tinyint" desc="二进制2" count= "1000" refer="BinaryLen" /><entry name="strstr" type="string" size="64" desc="字符串"/><index name="index_id" column="TimeStamp"/></struct></metalib>
步骤1：定义配置参数
// 目标集群的访问地址static const char DIR_URL_ARRAY[][TCAPLUS_MAX_STRING_LENGTH] ={"tcp://10.191.***.99:9999","tcp://10.191.***.88:9999"};// 目标集群的地址个数static const int32_t DIR_URL_COUNT = 2;// 目标业务的集群 IDstatic const int32_t APP_ID = 3;// 目标业务的表格组 IDstatic const int32_t ZONE_ID = 1;// 目标业务的业务密码static const char * SIGNATURE = "*******";// 目标业务的表名 PLAYERONLINECNTstatic const char * TABLE_NAME = "PLAYERONLINECNT";
步骤2：初始化 TcaplusAPI 日志句柄
日志配置文件：tlogconf.xml
//TCaplus service 日志类TcaplusService::TLogger* g_pstTlogger;LPTLOGCATEGORYINST g_pstLogHandler;LPTLOGCTX g_pstLogCtx;int32_t InitLog(){// 日志配置文件的绝对路径const char* sLogConfFile = "tlogconf.xml";// 日志类名const char* sCategoryName = "mytest";//从配置文件初始化日志句柄g_pstLogCtx = tlog_init_from_file(sLogConfFile);if (NULL == g_pstLogCtx){fprintf(stderr, "tlog_init_from_file failed.\\n");return -1;}// 获取日志类g_pstLogHandler = tlog_get_category(g_pstLogCtx, sCategoryName);if (NULL == g_pstLogHandler){fprintf(stderr, "tlog_get_category(mytest) failed.\\n");return -2;}// 初始化日志句柄g_pstTlogger = new TcaplusService::TLogger(g_pstLogHandler);if (NULL == g_pstTlogger){fprintf(stderr, "TcaplusService::TLogger failed.\\n");return -3;}return 0;}
步骤3：初始化 TcaplusAPI 客户端
//TCaplus service API 的客户端主类TcaplusService::TcaplusServer g_stTcapSvr;//表的meta信息extern unsigned char g_szMetalib_tcaplus_tb[];LPTDRMETA g_szTableMeta = NULL;int32_t InitServiceAPI(){// 初始化int32_t iRet = g_stTcapSvr.Init(g_pstTlogger, /*module_id*/0, /*app id*/APP_ID, /*zone id*/ZONE_ID, /*signature*/SIGNATURE);if (0 != iRet){tlog_error(g_pstLogHandler, 0, 0, "g_stTcapSvr.Init failed, iRet: %d.", iRet);return iRet;}// 添加目录服务器for (int32_t i = 0; i< DIR_URL_COUNT; i++){iRet = g_stTcapSvr.AddDirServerAddress(DIR_URL_ARRAY[i]);if (0 != iRet){tlog_error(g_pstLogHandler, 0, 0, "g_stTcapSvr.AddDirServerAddress(%s) failed, iRet: %d.", DIR_URL_ARRAY[i], iRet);return iRet;}}// 取得表的 meta 描述g_szTableMeta = tdr_get_meta_by_name((LPTDRMETALIB)g_szMetalib_tcaplus_tb, TABLE_NAME);if(NULL == g_szTableMeta){tlog_error(g_pstLogHandler, 0, 0,"tdr_get_meta_by_name(%s) failed.", TABLE_NAME);return -1;}// 注册数据表（连接 dir 服务器，认证，获取表路由），10s超时iRet = g_stTcapSvr.RegistTable(TABLE_NAME, g_szTableMeta, /*timeout_ms*/10000);if(0 != iRet){tlog_error(g_pstLogHandler, 0, 0, "g_stTcapSvr.RegistTable(%s) failed, iRet: %d.", TABLE_NAME, iRet);return iRet;}// 连接表对应的所有 tcaplus proxy 服务器iRet = g_stTcapSvr.ConnectAll(/*timeout_ms*/10000, 0);if(0 != iRet){tlog_error(g_pstLogHandler, 0, 0, "g_stTcapSvr.ConnectAll failed, iRet: %d.", iRet);return iRet;}return 0;}
步骤4：通过 API 发送 delete 请求
int32_t SendDeleteRequest(){// 请求对象类TcaplusService::TcaplusServiceRequest* pstRequest = g_stTcapSvr.GetRequest(TABLE_NAME);if (NULL == pstRequest){tlog_error(g_pstLogHandler, 0, 0, "g_stTcapSvr.GetRequest(%s) failed.", TABLE_NAME);return -1;}//初始化请求对象int iRet = pstRequest->Init(TCAPLUS_API_DELETE_REQ, NULL, 0, 0, 0, 0);if(0 != iRet){tlog_error(g_pstLogHandler, 0, 0, "pstRequest->Init(TCAPLUS_API_DELETE_REQ) failed, iRet: %d.", iRet);return iRet;}//为请求添加表记录TcaplusService::TcaplusServiceRecord* pstRecord = pstRequest->AddRecord();if (NULL == pstRecord){tlog_error(g_pstLogHandler, 0, 0, "pstRequest->AddRecord() failed.");return -1;}PLAYERONLINECNT stPLAYERONLINECNT;memset(&stPLAYERONLINECNT, 0, sizeof(stPLAYERONLINECNT));// 设置删除的 key 信息stPLAYERONLINECNT.dwTimeStamp = 1;snprintf(stPLAYERONLINECNT.szGameSvrID, sizeof(stPLAYERONLINECNT.szGameSvrID), "%s", "mysvrid");// 设置基于 TDR 描述设置 record 数据iRet = pstRecord->SetData(&stPLAYERONLINECNT, sizeof(stPLAYERONLINECNT));if(0 != iRet){tlog_error(g_pstLogHandler, 0, 0, "pstRecord->SetData() failed, iRet: %d.", iRet);return iRet;}// 发送请求消息包iRet= g_stTcapSvr.SendRequest(pstRequest);if(0 != iRet){tlog_error(g_pstLogHandler, 0, 0, "g_stTcapSvr.SendRequest failed, iRet: %d.", iRet);return iRet;}return 0;}
步骤5：通过 API 接收响应
int RecvResp(TcaplusServiceResponse*& response){//此处阻塞收包，每次阻塞1ms，收5000次unsigned int sleep_us = 1000;unsigned int sleep_count = 5000;do{usleep(sleep_us);response = NULL;int ret = g_stTcapSvr.RecvResponse(response);if (ret < 0){tlog_error(g_pstLogHandler, 0, 0, "tcaplus_server.RecvResponse failed. ret:%d", ret);return ret;}//收到一个响应包if (1 == ret){break;}} while ((--sleep_count) > 0);//5s超时if (0 == sleep_count){tlog_error(g_pstLogHandler, 0, 0, "tcaplus_server.RecvResponse wait timeout.");return -1;}return 0;}
示例
int main(void) {//初始化日志int ret = InitLog();if ( ret != 0){printf("init log failed\\n");return -1;}//初始化API客户端ret = InitServiceAPI();if ( ret != 0){printf("init InitServiceAPI failed\\n");return -1;}//发送请求ret = SendDeleteRequest();if (0 != ret){printf("SendDeleteRequest failed\\n");return -1;}//接收响应TcaplusServiceResponse* response = NULL;ret = RecvResp(response);if (0 != ret){printf("RecvResp failed\\n");return -1;}//获取操作的结果，0表示成功int32_t result = response->GetResult();if (0 != result){printf("the result is %d\\n", result);return -1;}return 0;}
