網路程式設計 poll

寫下來，怕忘記了

// server

#include #include #include #include #include #include #include #include // gettimeofday()

#include // struct in_addr
#include // inet_aton()
#include // getpid()
#include #include //#define ndebug
#include using namespace std;
#define max_connect 5
void nothing(int i)
int main()
; struct sockaddr_in cli_addr= ;
socklen_t cli_len = sizeof cli_addr;
short port;
int fd = socket(pf_inet,sock_stream,0);
if(fd < 0)
int flags = fcntl(fd,f_getfl,0);
flags |= o_nonblock;
//fcntl(fd,f_setfl,flags);
addr.sin_family = af_inet;
//n = inet_aton("127.0.0.1",&addr.sin_addr);
addr.sin_addr.s_addr = inaddr_any;
addr.sin_port = htons(6219);
n = bind(fd,(struct sockaddr*) &addr,sizeof(addr));
if(n < 0)
n = listen(fd,2);
if(n < 0)
vectorfdvec;
fdvec.push_back(fd);
while(1)
cerr << "poll...index:" << index;
n = poll(fds,index,5000 /*milliseconds -1 */ );
cerr << " done. " << n << endl;
if(n < 0)
else if (0 == n)
else
}else
;int n = read(fds[i].fd,buf,sizeof(buf));
--readyfds;
if(n < 0)
return 6;
}if(0 == n)
continue;
}int m = write(fds[i].fd,buf,n);
if(m < 0)}}
if(readyfds)
cerr << "some fd don't proccess." << endl;
} }return 0;
}

// client

參見：

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