[jmorlan] 39628: - Improve performance of TYPE command by reading more than 1 byte at a time. (Bug 4057) - Also allow it to be interrupted by ^C.

Author: jmorlan
Date: Mon Feb 16 15:50:54 2009
New Revision: 39628

URL: http://svn.reactos.org/svn/reactos?rev=39628&view=rev
Log:
- Improve performance of TYPE command by reading more than 1 byte at a time. (Bug 4057)
- Also allow it to be interrupted by ^C.

Modified:
    trunk/reactos/base/shell/cmd/type.c

Modified: trunk/reactos/base/shell/cmd/type.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/base/shell/cmd/type.c?rev=3...
==============================================================================
--- trunk/reactos/base/shell/cmd/type.c [iso-8859-1] (original)
+++ trunk/reactos/base/shell/cmd/type.c [iso-8859-1] Mon Feb 16 15:50:54 2009
@@ -35,7 +35,7 @@
 {
    TCHAR  buff[256];
    HANDLE hFile, hConsoleOut;
-	BOOL   bRet;
+	DWORD  dwRet;
    INT    argc,i;
    LPTSTR *argv;
    LPTSTR errmsg;
@@ -99,28 +99,34 @@
    		continue;
    	}

-		do
+		if (bPaging)
    	{
-			bRet = FileGetString (hFile, buff, sizeof(buff) / sizeof(TCHAR));
-			if(bPaging)
+			while (FileGetString (hFile, buff, sizeof(buff) / sizeof(TCHAR)))
    		{
-				if(bRet)
+				if (ConOutPrintfPaging(bFirstTime, _T("%s"), buff) == 1)
    			{
-					if (ConOutPrintfPaging(bFirstTime, _T("%s"), buff) == 1)
-					{
-						bCtrlBreak = FALSE;
-						return 0;
-					}
+					bCtrlBreak = FALSE;
+					CloseHandle(hFile);
+					freep(argv);
+					return 0;
+				}
+				bFirstTime = FALSE;
+			}
+		}
+		else
+		{
+			while (ReadFile(hFile, buff, sizeof(buff), &dwRet, NULL) && dwRet > 0)
+			{
+				WriteFile(hConsoleOut, buff, dwRet, &dwRet, NULL);
+				if (bCtrlBreak)
+				{
+					bCtrlBreak = FALSE;
+					CloseHandle(hFile);
+					freep(argv);
+					return 0;
    			}
    		}
-			else
-			{
-				if(bRet)
-					ConOutPrintf(_T("%s"), buff);
-			}
-			bFirstTime = FALSE;
-
-		} while(bRet);
+		}

CloseHandle(hFile);
    }