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linux epollÓÃÓÚsocket¿ØÖÆ ´úÂëʵÀý

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²ÎÕÕ£º  http://linux.die.net/man/4/epoll
ʵÀý´úÂ룺£¨À´×ÔÍøÉÏijÂÛ̳£©
#include <pthread.h>
#include <stdio.h>
#include <sys/timeb.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/epoll.h>
#include <netinet/in.h>
#include <string.h>
#include <fcntl.h>
#include <signal.h>
#include <errno.h>
#define MAX_CLIENT 101
#define PORT 3355
#define DEBUG
int listenfd;
//ÉèÖÃsocketÁ¬½ÓΪ·Ç×èÈûģʽ
void nonblock(int sockfd)
{
    int opts;
    opts = fcntl(sockfd, F_GETFL);
    if(opts < 0)
    {
        perror("fcntl(F_GETFL)\n");
        exit(1);
    }
    opts = (opts | O_NONBLOCK);
    if(fcntl(sockfd, F_SETFL, opts) < 0)
    {
        perror("fcntl(F_SETFL)\n");
        exit(1);
    }
}
int main()
{
    int epfd;
    struct epoll_event *events;
    struct epoll_event ev;
   
    struct sockaddr_in srv;
    int clifd;
    int i;
    int n;
    int res;
    char buffer[1024];
    //´´½¨·þÎñÆ÷¶Ësocket
    if( (listenfd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
    {
        perror("sockfd\n");
        exit(1);
    }
    bzero(&srv, sizeof(srv));
    srv.sin_family = AF_INET;
    srv.sin_addr.s_addr = htonl(INADDR_ANY);;
    srv.sin_port = htons(PORT);
    //·


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