C++访问Redis的mset 二进制数据接口封装方案

if(vtKey.size() != vtVal.size()) {

throw runtime_error( "Redis error" ); }

char ** argv = new char*[vtKey.size() + vtVal.size() + 1 ];

size_t * argvlen = new size_t[vtKey.size() + vtVal.size() + 1 ];

int j = 0; argv[j] = new char[5];

memcpy(argv[j],"MSET",4); argvlen[j] = 4;

++j;

for(int i = 0 ; i < vtKey.size();i++)

{ argvlen[j] = vtKey[i].length();

argv[j] = new char[argvlen[j]]; memset((void*)argv[j],0,argvlen[j] );

memcpy((void*)argv[j],vtKey[i].data(),vtKey[i].length()); j++;

argvlen[j] = vtVal[i].length();

argv[j] = new char[argvlen[j]]; memset((void*)argv[j],0,argvlen[j]);

memcpy((void*)argv[j],vtVal[i].data(),vtVal[i].length()); j++;

}

//if not use const_cast<const char**> ,compile error //for why assign from char** to const char** error, see my blog ...

void *r = redisCommandArgv(c, vtKey.size() + vtVal.size() + 1, const_cast<const char**>(argv), argvlen ); if ( !r )

throw runtime_error( "Redis error" ); freeReplyObject( r );

for(int i = 0;i < vtKey.size();i++)

{ delete [] argv[i];

argv[i] = NULL; }