// Server.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"


int main(int argc, char* argv[])
{
	STARTUPINFO si;
	PROCESS_INFORMATION pi;
	char ReadBuf[100];
	DWORD ReadNum;
	
	// 管道讀句柄
	HANDLE hRead;

	// 管道寫句柄
	HANDLE hWrite;

	// 創建匿名管道
	BOOL bRet = CreatePipe(&hRead, &hWrite, NULL, 0);
	if (bRet == TRUE)
		printf("成功創建匿名管道!\n");
	else
		printf("創建匿名管道失敗,錯誤代碼:%d\n", GetLastError());

	// 得到本進程的當前標準輸出
	HANDLE hTemp = GetStdHandle(STD_OUTPUT_HANDLE);

	// 設置標準輸出到匿名管道
	SetStdHandle(STD_OUTPUT_HANDLE, hWrite);

	// 獲取本進程的STARTUPINFO結構信息
	GetStartupInfo(&si);

	// 創建子進程
	bRet = CreateProcess(NULL, "Client.exe", NULL, NULL, TRUE, NULL, NULL, NULL, &si, &pi);

	// 恢復本進程的標準輸出
	SetStdHandle(STD_OUTPUT_HANDLE, hTemp);

	// 輸入信息
	if (bRet == TRUE)
		printf("成功創建子進程!\n");
	else
		printf("創建子進程失敗,錯誤代碼:%d\n", GetLastError());
	
	// 關閉寫句柄
	CloseHandle(hWrite);

	// 讀管道直至管道關閉
	while (ReadFile(hRead, ReadBuf, 100, &ReadNum, NULL))
	{
		ReadBuf[ReadNum] = '\0';
		printf("從管道[%s]讀取%d字節數據\n", ReadBuf, ReadNum);
	}

	// 輸出信息
	if (GetLastError() == ERROR_BROKEN_PIPE)
		printf("管道被子進程關閉\n");
	else
		printf("讀數據錯誤,錯誤代碼:%d\n", GetLastError());

	return 0;
}