创建命名管道 C++ Windows
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/26561604/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Create Named Pipe C++ Windows
提问by user3052078
I am trying to create a simple comunication between 2 processes in C++ ( Windows ) like FIFO in linux. This is my server:
我正在尝试在 C++ ( Windows ) 中的 2 个进程之间创建一个简单的通信，例如 linux 中的 FIFO。这是我的服务器：
int main()
{
HANDLE pipe = CreateFile(TEXT("\\.\pipe\Pipe"), GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL);
ConnectNamedPipe(pipe, NULL);
while(TRUE){
string data;
DWORD numRead =1 ;
ReadFile(pipe, &data, 1024, &numRead, NULL);
cout << data << endl;
}
CloseHandle(pipe);
return 0;
}
And this is my client:
这是我的客户：
int main()
{
HANDLE pipe = CreateFile(TEXT("\\.\pipe\Pipe"), GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
ConnectNamedPipe(pipe, NULL);
string message = "TEST";
DWORD numWritten;
WriteFile(pipe, message.c_str(), message.length(), &numWritten, NULL);
return 0;
}
The code does't work , how can i fixed it to like FIFO ?
代码不起作用，我如何修复它以喜欢 FIFO？
回答by Lukas Thomsen
You cannot create a named pipe by calling CreateFile(..).
您不能通过调用来创建命名管道CreateFile(..)。
Have a look at the pipe examples of the MSDN. Since these examples are quite complex I've quickly written a VERYsimple named pipe server and client.
看看MSDN的管道示例。由于这些示例非常复杂，我很快编写了一个非常简单的命名管道服务器和客户端。
int main(void)
{
HANDLE hPipe;
char buffer[1024];
DWORD dwRead;
hPipe = CreateNamedPipe(TEXT("\\.\pipe\Pipe"),
PIPE_ACCESS_DUPLEX,
PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | PIPE_WAIT, // FILE_FLAG_FIRST_PIPE_INSTANCE is not needed but forces CreateNamedPipe(..) to fail if the pipe already exists...
1,
1024 * 16,
1024 * 16,
NMPWAIT_USE_DEFAULT_WAIT,
NULL);
while (hPipe != INVALID_HANDLE_VALUE)
{
if (ConnectNamedPipe(hPipe, NULL) != FALSE) // wait for someone to connect to the pipe
{
while (ReadFile(hPipe, buffer, sizeof(buffer) - 1, &dwRead, NULL) != FALSE)
{
/* add terminating zero */
buffer[dwRead] = 'int main(void)
{
HANDLE hPipe;
DWORD dwWritten;
hPipe = CreateFile(TEXT("\\.\pipe\Pipe"),
GENERIC_READ | GENERIC_WRITE,
0,
NULL,
OPEN_EXISTING,
0,
NULL);
if (hPipe != INVALID_HANDLE_VALUE)
{
WriteFile(hPipe,
"Hello Pipe\n",
12, // = length of string + terminating '##代码##' !!!
&dwWritten,
NULL);
CloseHandle(hPipe);
}
return (0);
}
';
/* do something with data in buffer */
printf("%s", buffer);
}
}
DisconnectNamedPipe(hPipe);
}
return 0;
}
And here is the client code:
这是客户端代码：
##代码##You should replace the name of the pipe TEXT("\\\\.\\pipe\\Pipe")by a #define which is located in a commonly used header file.
您应该将管道名称替换TEXT("\\\\.\\pipe\\Pipe")为位于常用头文件中的 #define。
