续第一篇，前两天对核心存储做了些修改，以前只打算与关系数据库的行与表做对应,value类型只能使array或list,

现在把7种基本类型也加入到value支持的类型中，以使得数据库更通用.

当然，这都不是本文的核心，本篇主要介绍一个测试前端，以及测试的远程调用协议.

先贴出测试前端的服务器代码:

#include "netservice.h"#include "msg_loop.h"#include "datasocket.h"#include "SysTime.h"#include "db_protocal.h"atomic_32_t wpacket_count = 0;atomic_32_t rpacket_count = 0;atomic_32_t buf_count = 0;global_table_t gtb;void server_process_packet(datasocket_t s,rpacket_t r){    //执行操作并返回结果    cache_protocal_t p;    uint32_t coro_id = rpacket_read_uint32(r);    uint8_t type = rpacket_read_uint8(r);    switch(type)    {        case CACHE_GET:            p = create_get();            break;        case CACHE_SET:            p = create_set();            break;        case CACHE_DEL:            p = create_del();            break;                }    wpacket_t ret = p->execute(gtb,r,coro_id);    if(NULL != ret)        data_send(s,ret);    destroy_protocal(&p);}void process_new_connection(datasocket_t s){    printf("w:%u,r:%u,b:%u\n",wpacket_count,rpacket_count,buf_count);}void process_connection_disconnect(datasocket_t s,int32_t reason){    release_datasocket(&s);    printf("w:%u,r:%u,b:%u\n",wpacket_count,rpacket_count,buf_count);}void process_send_block(datasocket_t s){    //发送阻塞,直接关闭    close_datasocket(s);}const char *ip;uint32_t port;int main(int argc,char **argv){    init_net_service();    ip = argv[1];    port = atoi(argv[2]);    netservice_t n = create_net_service(1);    gtb = global_table_create(65536);        int32_t i = 0;    char key[64];    for( ; i < 1000000; ++i)    {        basetype_t a = basetype_create_int32(i);        snprintf(key,64,"test%d",i);        a = global_table_insert(gtb,key,a,global_hash(key));        if(!a)            printf("error 1\n");        basetype_release(&a);            }        net_add_listener(n,ip,port);    msg_loop_t m = create_msg_loop(server_process_packet,process_new_connection,process_connection_disconnect,process_send_block);    while(1)    {        msg_loop_once(m,n,100);        }    return 0;}

前端的网络模块使用了在上一篇中介绍的网络框架，启动时先插入100W条32位整型的记录,然后进入消息循环，不断的处理从客户端发过来的操作请求.

目前只添加了三个协议,分别是获取:CACHE_GET;添加/修改:CACHE_SET;删除:CACHE_DEL.

服务器处理协议并将结果返回给客户端.

然后是测试客户端:

#include "db_protocal.h"#include "dbtype.h"#include 
     
      #include "SocketWrapper.h"#include "SysTime.h"#include "KendyNet.h"#include "Connector.h"#include "Connection.h"#include "common_define.h"#include "netservice.h"#include "msg_loop.h"#include "co_sche.h"sche_t g_sche = NULL;uint32_t call_count = 0;atomic_32_t wpacket_count = 0;atomic_32_t rpacket_count = 0;atomic_32_t buf_count = 0;datasocket_t db_s;int8_t test_select(const char *key,int32_t i){    coro_t co = get_current_coro();    wpacket_t wpk = get_wpacket(64);    wpacket_write_uint32(wpk,(int32_t)co);    wpacket_write_uint8(wpk,CACHE_GET);//ÉèÖà    wpacket_write_string(wpk,key);    data_send(db_s,wpk);    coro_block(co);    int8_t ret = rpacket_read_uint8(co->rpc_response);    rpacket_read_uint8(co->rpc_response);    int32_t val = rpacket_read_uint32(co->rpc_response);    if(val != i)        printf("error\n");    //printf("begin\n");    rpacket_destroy(&co->rpc_response);    //printf("end\n");    return ret;}void *test_coro_fun2(void *arg){    coro_t co = get_current_coro();    while(1)    {        char key[64];        int32_t i = rand()%1000000;        snprintf(key,64,"test%d",100);                if(0 == test_select(key,100))            ++call_count;    }}void server_process_packet(datasocket_t s,rpacket_t r){    coro_t co = (coro_t)rpacket_read_uint32(r);    co->rpc_response = rpacket_create_by_rpacket(r);    coro_wakeup(co);}void process_new_connection(datasocket_t s){    printf("connect server\n");    db_s = s;    g_sche = sche_create(20000,65536,NULL,NULL);    int i = 0;    for(; i < 20000; ++i)    {        sche_spawn(g_sche,test_coro_fun2,NULL);    }}void process_connection_disconnect(datasocket_t s,int32_t reason){    release_datasocket(&s);}void process_send_block(datasocket_t s){    //·¢ËÍ×èÈû,Ö±½Ó¹Ø±Õ    close_datasocket(s);}int main(int argc,char **argv){    init_net_service();    const char *ip = argv[1];    uint32_t port = atoi(argv[2]);    netservice_t n = create_net_service(1);    net_connect(n,ip,port);    msg_loop_t m = create_msg_loop(server_process_packet,process_new_connection,process_connection_disconnect,process_send_block);    uint32_t tick = GetSystemMs();    while(1)    {        msg_loop_once(m,n,1);        uint32_t now = GetSystemMs();        if(now - tick > 1000)        {            printf("call_count:%u\n",(call_count*1000)/(now-tick));            tick = now;            call_count = 0;        }        if(g_sche)            sche_schedule(g_sche);                }    return 0;}
     

操作接口使用用户级线程实现，以支持同步调用接口，用户级线程发出请求后就阻塞自己，直到结果返回时才被唤醒:

关键部分在test_select,把自己的coro地址作为id打包到协议中，发往服务器，然后调用coro_block阻塞。服务器返回的数据包

中也带了对应的coro_id,以通知客户端的调度系统该唤醒哪个coro.coro被唤醒后从结果包中读取操作结果和数据,返回给上层调用者.

从测试结果来看,启动1W个coro的客户端，每秒平均能执行50W次的操作。对于一个万人在线的MMORPG游戏来说应该已经是够用的了。

如果还是不够，可以通过表空间的划分，启动多个内存数据库进程来服务请求。

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