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#include <iostream>
#include <time.h>
#ifdef WIN32
#include <winsock2.h>
#pragma comment(lib,"ws2_32.lib")
#else
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#endif
using namespace std;
int  main()
{
        struct timeval timeWait;
        timeWait.tv_sec = 0;
        timeWait.tv_usec = 10000;
        int liRecvCnt = 0;
        time_t t1, t2;
        time(&t1);
         while(liRecvCnt < 10)
         {
                timeWait.tv_sec = 0;
                timeWait.tv_usec = 500000;
                liRecvCnt++;
                select(0, NULL, NULL, NULL, &timeWait);
        }
         time(&t2);
         cout<<t2-t1<<endl;
         return 0;
}
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