我试图在我的服务器程序中使用多线程,这样当我从浏览器收到请求时,我的服务器应该打开一个 txt 文件并将其发送到浏览器进行显示。我需要做的是有一个单独的功能,每次有来自浏览器(客户端)的请求时,它都会在我的 main 内部进行发送/接收,例如:127.0.0.1:3490/index.txt 我设法做到了一个请求仅使用我的主要功能,但我无法将所有内容放入我的线程功能并将其发送到浏览器。
我将不胜感激以下是我的代码:
#include <stdio.h>
#include<stdlib.h>
#include <winsock.h>
#include <stddef.h>
#define NUM_THREADS 10
#define MYPORT 3490
void *PrintData(void *thread);
int main() {
WSADATA wsaData;
SOCKET s;
unsigned fd;
struct sockaddr_in my_addr;
WSAStartup(MAKEWORD(1, 1), &wsaData);
my_addr.sin_family = AF_INET;
my_addr.sin_port = htons(MYPORT);
my_addr.sin_addr.s_addr = INADDR_ANY;
memset(my_addr.sin_zero, '\0', sizeof(my_addr.sin_zero) );
s=socket(PF_INET,SOCK_STREAM, 0);
if(s<0) printf("socket failed\n");
if ( (bind(s, (struct sockaddr *)&my_addr, sizeof(my_addr)) ) !=0){ printf("Bind failed!\n");}
listen(s,10);
while(1) {
fd=accept(s,NULL,NULL);
printf("Client connected\r\n");
CreateThread(NULL,(DWORD)NULL,(LPTHREAD_START_ROUTINE)PrintData,(void*)fd,(DWORD)NULL,NULL); // creating threads
}
closesocket(fd);
WSACleanup();
}
void *PrintData(void *thread){
char *header="HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n";
char data[512];
char filename[256];
FILE *f;
printf("It's me, thread!\n");
SOCKET curr_client = (SOCKET)thread;
int res;
while(1){
res=recv(curr_client,data,512,0);
///data[res]=0;
Sleep(10);
if(res == 0) printf("error: res == 0");
sscanf(data,"GET /%s ",filename);
printf("Get: %s %d\n", filename, res);
send(curr_client,header,strlen(header),0);
f=fopen(filename,"rb");
if(f == NULL){ fputs("Can not find the file!", stderr); }
while(!feof(f)){
printf("heloooo");
int retVal = fread(data, 1, sizeof(data), f);
///printf("data is : %s\n", data);
send(curr_client, data, sizeof(data), 0);
}
}
fclose(f);
ExitThread((DWORD)NULL);
}