C++ 代替windows中的分叉
我一直在关注,在服务器部分,有一部分代码调用了函数fork() 我在一台windows机器上,不能让那个部件工作。我能做些什么来解决这个问题?。 我的代码如下C++ 代替windows中的分叉,c++,winapi,gcc,winsock,fork,C++,Winapi,Gcc,Winsock,Fork,我一直在关注,在服务器部分,有一部分代码调用了函数fork() 我在一台windows机器上,不能让那个部件工作。我能做些什么来解决这个问题?。 我的代码如下 /* Server */ #define _WIN32_WINNT 0x501 #include <iostream> #include <windows.h> #include <winsock2.h> #include <ws2tcpip.h> #include <stdio.h&
/* Server */
#define _WIN32_WINNT 0x501
#include <iostream>
#include <windows.h>
#include <winsock2.h>
#include <ws2tcpip.h>
#include <stdio.h>
#include <sys/types.h>
using namespace std;
const int winsockVersion = 2;
#define BACKLOG 10
#define PORT "3000"
int main(void){
WSADATA wsadata;
if (WSAStartup(MAKEWORD(winsockVersion,0),&wsadata) == 0){
cout<<"-WSAStartup initialized..." << endl;
int status;
int sockfd, new_fd;
const char yes = '1';
struct addrinfo hints, *res,*loop_find;
struct sockaddr_storage their_addr;
socklen_t addr_size;
memset(&hints,0,sizeof hints);
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_PASSIVE;
if ( (status = getaddrinfo(NULL,PORT,&hints,&res)) == 0 ){
cout<<"-Call to get addrinfo successful!." << endl;
}
for (loop_find = res; loop_find!=NULL; loop_find = loop_find->ai_next){
if ( (sockfd = socket(loop_find->ai_family,loop_find->ai_socktype,loop_find->ai_protocol) ) == -1 ){
cout<<"-Could not create socket." << endl;
continue;
}else{
cout<<"-Socket Created." << endl;
}
//clearing in use ports.
if (setsockopt(sockfd,SOL_SOCKET,SO_REUSEADDR,&yes,sizeof(int)) == -1) {
cout<<"-Couldnt clear blocked port." << endl;
perror("setsockopt");
exit(1);
}
if( bind(sockfd,loop_find->ai_addr,loop_find->ai_addrlen) == -1 ){
closesocket(sockfd);
perror("server: bind");
continue;
}
break;
}
if (listen(sockfd,BACKLOG) != -1){
cout<<"-Listening for incoming connections.";
}
//accept loop.
while(true){
socklen_t addr_size = sizeof their_addr;
new_fd = accept(sockfd,(sockaddr*)&their_addr,&addr_size);
if ( new_fd == -1 ){
perror("accept");
continue;
}
struct sockaddr new_addr;
int len = sizeof new_addr;
getpeername(new_fd,&new_addr,&len);
cout<<"-Connected to " << new_addr.sa_data << endl;
if(!fork()){ //this is a child process
closesocket(sockfd);
if (send(new_fd,"hello world!!",13,0) == -1){
perror("send");
closesocket(new_fd);
exit(0);
}
}
closesocket(new_fd);
}
}
//clear stuff
if( WSACleanup() != 0){
cout<<"-WSACleanup unsuccessful" << endl;
}else{
cout<<"-WSACleanup successful" << endl;
}
return 0;
}
/*服务器*/
#定义_WIN32_WINNT 0x501
#包括
#包括
#包括
#包括
#包括
#包括
使用名称空间std;
const int winsockVersion=2;
#定义待办事项10
#定义端口“3000”
内部主(空){
WSADATA WSADATA;
if(WSAStartup(MAKEWORD(winsockVersion,0),&wsadata)==0){
coutfork
在Windows上不存在。必须使用名为的特定于窗口的API
与fork
相反,CreateProcess
需要EXE的路径。您可以通过使用空参数调用来检索当前EXE的路径。fork()显然不存在于Windows上。相反,您需要,或者。与现有答案(来自OJ和Vincent Robert)fork()相反确实存在于高端版本的Windows上。它是基于UNIX的应用程序子系统(SUA)的一部分,早期称为Microsoft Windows Services for UNIX(SFU),早期称为Interix
引用,SUA可在
- Windows Server 2003 R2(所有版本)-版本5.2
- Windows Vista(终极版和
企业版)-版本6.0
- Windows Server 2008(所有版本)-
版本6.0
- Windows Server 2008 R2和Microsoft
Windows 7-版本6.1
使用fork()只需安装免费的SUA SDK。根据您的目标系统,您需要以下选项之一:
你也可以看看当你为Windows编写代码时,你通常会使用另一种思维方式。我认为你最好看看Winsock教程,而不是你正在使用的本指南。相关问题:,,但实际上你根本没有在Windows上设计那样的网络服务器。fork()Windows上没有这么明显的存在:)请看我的答案。听起来一点也不像粉丝。如果你问我的话,你会给出毫无意义的评论。fork()确实存在于Windows上:)请看我的答案。所以你说的是“fork确实存在,只要你使用正确版本的Windows并安装启用它的SDK来确保它存在”.IMHO,它也可能不存在。CreateProcess
对于Windows开发人员来说是一个更简单、更好的选择(当然是IMHO)。干杯!没有Windows是一个更简单、更好的选择。遗憾的是,似乎SUA在Windows 8中不受欢迎,并且“将从下一版本中完全删除”:@RichieHindle但现在我们即将在WSL中找到一个替代品:@SørenBoisen:是的!我还没有看过,但它看起来确实很有希望。我们目前正在使用Cygwin,这并不是最稳定的。一个“真正的”Windows Linux命令行子系统应该是一个更好的选择。
/* Server */
#define _WIN32_WINNT 0x501
#include <iostream>
#include <windows.h>
#include <winsock2.h>
#include <ws2tcpip.h>
#include <stdio.h>
#include <sys/types.h>
using namespace std;
const int winsockVersion = 2;
#define BACKLOG 10
#define PORT "3000"
int main(void){
WSADATA wsadata;
if (WSAStartup(MAKEWORD(winsockVersion,0),&wsadata) == 0){
cout<<"-WSAStartup initialized..." << endl;
int status;
int sockfd, new_fd;
const char yes = '1';
struct addrinfo hints, *res,*loop_find;
struct sockaddr_storage their_addr;
socklen_t addr_size;
memset(&hints,0,sizeof hints);
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_PASSIVE;
if ( (status = getaddrinfo(NULL,PORT,&hints,&res)) == 0 ){
cout<<"-Call to get addrinfo successful!." << endl;
}
for (loop_find = res; loop_find!=NULL; loop_find = loop_find->ai_next){
if ( (sockfd = socket(loop_find->ai_family,loop_find->ai_socktype,loop_find->ai_protocol) ) == -1 ){
cout<<"-Could not create socket." << endl;
continue;
}else{
cout<<"-Socket Created." << endl;
}
//clearing in use ports.
if (setsockopt(sockfd,SOL_SOCKET,SO_REUSEADDR,&yes,sizeof(int)) == -1) {
cout<<"-Couldnt clear blocked port." << endl;
perror("setsockopt");
exit(1);
}
if( bind(sockfd,loop_find->ai_addr,loop_find->ai_addrlen) == -1 ){
closesocket(sockfd);
perror("server: bind");
continue;
}
break;
}
if (listen(sockfd,BACKLOG) != -1){
cout<<"-Listening for incoming connections.";
}
//accept loop.
while(true){
socklen_t addr_size = sizeof their_addr;
new_fd = accept(sockfd,(sockaddr*)&their_addr,&addr_size);
if ( new_fd == -1 ){
perror("accept");
continue;
}
struct sockaddr new_addr;
int len = sizeof new_addr;
getpeername(new_fd,&new_addr,&len);
cout<<"-Connected to " << new_addr.sa_data << endl;
if(!fork()){ //this is a child process
closesocket(sockfd);
if (send(new_fd,"hello world!!",13,0) == -1){
perror("send");
closesocket(new_fd);
exit(0);
}
}
closesocket(new_fd);
}
}
//clear stuff
if( WSACleanup() != 0){
cout<<"-WSACleanup unsuccessful" << endl;
}else{
cout<<"-WSACleanup successful" << endl;
}
return 0;
}