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@@ -0,0 +1,67 @@
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+
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+# ivservice使用说明
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+
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+## 1.功能介绍
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+ivservice用于便于编写服务接口
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+
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+## 2.服务端使用说明
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+服务端需要编写回调函数，如下所示
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+```
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+void ProcVINReq(std::shared_ptr<char> pstr_req,const int nreqsize,std::shared_ptr<char> & pstr_res,int & nressize)
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+{
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+ (void)pstr_req;
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+ (void)nreqsize;
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+ nressize = gstrVIN.size() +1;
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+ pstr_res = std::shared_ptr<char>(new char[nressize]);
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+ *(pstr_res.get() + nressize) = 0;
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+ memcpy(pstr_res.get(),gstrVIN.data(),gstrVIN.size());
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+}
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+```
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+然后实例化一个服务即可：
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+```
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+iv::service::Server serviceVersion("Version",ProcVersionReq);
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+```
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+
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+## 3.客户端使用说明
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+请求服务的方法由两种。
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+同步请求，同步请求的默认等待时间为100ms，如下：
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+```
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+ iv::service::Client xclientVersion("Version");
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+ std::shared_ptr<char> pstrvt_ptr;
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+ int ndatasize;
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+ if(xclientVersion.SendRequest(pstr_ptr,100,pstrvt_ptr,ndatasize) == iv::service::Client::HAVE_RES)
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+ {
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+ std::cout<<" Version: "<< pstrvt_ptr.get()<<std::endl;
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+ }
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+ else
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+ {
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+ std::cout<<" Can't Get Version"<<std::endl;
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+ }
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+```
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+异步请求，异步请求需要回调函数，如下：
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+```
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+void ProcAsyncVin(std::shared_ptr<char> & pstr_res,int & ndatasize,int nres)
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+{
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+ if(nres == 0)
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+ {
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+ std::cout<<"not get Service VIN"<<std::endl;
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+ return;
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+ }
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+ if(nres == 1)
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+ {
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+ (void)ndatasize;
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+ std::string strVIN;
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+ strVIN.append(pstr_res.get());
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+ std::cout<<"VIN:"<<pstr_res.get()<<std::endl;
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+ }
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+}
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+```
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+异步请求的默认等待时间时30s,调用方法如下：
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+```
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+ iv::service::Client xclientVIN("VIN");
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+ std::shared_ptr<char> pstr_ptr = std::shared_ptr<char>(new char[100]);
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+ xclientVIN.AsyncSendRequest(pstr_ptr,100,ProcAsyncVin);
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+```
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+
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+
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+
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