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#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <openssl/ssl.h>
#include <openssl/err.h>
#include <fcntl.h>
#include <sys/epoll.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <pthread.h>
#define MAXBUF 1024
#define MAXEPOLLSIZE 10000
void* pthread_handle_message(void* para);
/*
setnonblocking - 设置句柄为非阻塞方式
*/
int setnonblocking(int sockfd)
{
if (fcntl(sockfd, F_SETFL, fcntl(sockfd, F_GETFD, 0)|O_NONBLOCK) == -1) {
return -1;
}
return 0;
}
static int count111 = 0;
static time_t oldtime = 0, nowtime = 0;
//------------------------------------------------------------
int main(int argc, char **argv)
{
int listener, new_fd, nfds, n, ret;
struct epoll_event ev;
int kdpfd, curfds;
socklen_t len;
struct sockaddr_in my_addr, their_addr;
unsigned int myport, lisnum;
struct epoll_event events[MAXEPOLLSIZE];
struct rlimit rt;
if (argc>1)
myport = atoi(argv[1]);
else
myport = 8006;
if (argc>2)
lisnum = atoi(argv[2]);
else
lisnum = 10;
/* 设置每个进程允许打开的最大文件数 */
rt.rlim_max = rt.rlim_cur = MAXEPOLLSIZE;
if (setrlimit(RLIMIT_NOFILE, &rt) == -1) {
perror("setrlimit");
exit(1);
}
else printf("设置系统资源参数成功！/n");
/* 开启 socket 监听 */
if ((listener = socket(PF_INET, SOCK_STREAM, 0)) == -1) {
perror("socket");
exit(1);
} else
printf("socket 创建成功！/n");
/*设置socket属性，端口可以重用*/
int opt=SO_REUSEADDR;
setsockopt(listener,SOL_SOCKET,SO_REUSEADDR,&opt,sizeof(opt));
/*设置socket为非阻塞模式*/
setnonblocking(listener);
bzero(&my_addr, sizeof(my_addr));
my_addr.sin_family = PF_INET;
my_addr.sin_port = htons(myport);
if (argc>3)
my_addr.sin_addr.s_addr = inet_addr(argv[3]);
else
my_addr.sin_addr.s_addr = INADDR_ANY;
if (bind
(listener, (struct sockaddr *) &my_addr, sizeof(struct sockaddr))
== -1) {
perror("bind");
exit(1);
} else
printf("IP 地址和端口绑定成功/n");
if (listen(listener, lisnum) == -1) {
perror("listen");
exit(1);
} else
printf("开启服务成功！/n");
/* 创建 epoll 句柄，把监听 socket 加入到 epoll 集合里 */
kdpfd = epoll_create(MAXEPOLLSIZE);
len = sizeof(struct sockaddr_in);
ev.events = EPOLLIN | EPOLLET;
ev.data.fd = listener;
if (epoll_ctl(kdpfd, EPOLL_CTL_ADD, listener, &ev) < 0) {
fprintf(stderr, "epoll set insertion error: fd=%d/n", listener);
return -1;
} else
printf("监听 socket 加入 epoll 成功！/n");
curfds = 1;
while (1) {
/* 等待有事件发生 */
nfds = epoll_wait(kdpfd, events, curfds, -1);
if (nfds == -1) {
perror("epoll_wait");
continue;
}
/* 处理所有事件 */
for (n = 0; n < nfds; ++n) {
if (events[n].data.fd == listener) {
new_fd = accept(listener, (struct sockaddr *) &their_addr,
&len);
if (new_fd < 0) {
perror("accept");
continue;
} else
{
//printf("有连接来自于： %s:%d， 分配的 socket 为:%d/n", inet_ntoa(their_addr.sin_addr), ntohs(their_addr.sin_port), new_fd);
}
setnonblocking(new_fd);
ev.events = EPOLLIN | EPOLLET;
ev.data.fd = new_fd;
if (epoll_ctl(kdpfd, EPOLL_CTL_ADD, new_fd, &ev) < 0) {
fprintf(stderr, "把 socket '%d' 加入 epoll 失败！%s/n",
new_fd, strerror(errno));
return -1;
}
curfds++;
} else {
pthread_attr_t attr;
pthread_t threadId;
/*初始化属性值，均设为默认值*/
pthread_attr_init(&attr);
pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM);
/* 设置线程为分离属性*/
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
if(pthread_create(&threadId,&attr,pthread_handle_message,(void*)&(events[n].data.fd)))
{
perror("pthread_creat error!");
exit(-1);
}
}
}
}
close(listener);
return 0;
}
void* pthread_handle_message(void* para)
{
char recvBuf[1024] = {0};
int ret = 999;
int rs = 1;
int socketfd = *(int *)para;
while(rs)
{
ret = recv(socketfd,recvBuf,1024,0);// 接受客户端消息
if(ret < 0)
{
//由于是非阻塞的模式,所以当errno为EAGAIN时,表示当前缓冲区已无数据可//读在这里就当作是该次事件已处理过。
if(errno == EAGAIN)
{
printf("EAGAIN\n");
break;
}
else{
printf("recv error! errno:%d\n", errno);
close(socketfd);
break;
}
}
else if(ret == 0)
{
// 这里表示对端的socket已正常关闭.
rs = 0;
}
if(ret == sizeof(recvBuf))
rs = 1; // 需要再次读取
else
rs = 0;
}
if(ret>0){
count111 ++;
struct tm *today;
time_t ltime;
time( &nowtime );
if(nowtime != oldtime){
printf("%d\n", count111);
oldtime = nowtime;
count111 = 0;
}
char buf[1000] = {0};
sprintf(buf,"HTTP/1.0 200 OK\r\nContent-type: text/plain\r\n\r\n%s","Hello world!\n");
send(socketfd,buf, strlen(buf),0);
}
close(socketfd);
}
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