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patch from : Paolo Devoti <devotip at gmail.com>

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fix issue  : The fix does a WriteFile per line insted of one per char.
See issue #2015 for more details.

svn path=/trunk/; revision=25703
This commit is contained in:
Magnus Olsen 2007-02-03 16:03:37 +00:00
parent d8540d8289
commit 0b971d5007
1 changed files with 38 additions and 48 deletions
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86
reactos/base/shell/cmd/console.c
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@ -12,6 +12,9 @@
*
* 01-Jul-2005 (Brandon Turner) <turnerb7@msu.edu>)
* Added ConPrintfPaging and ConOutPrintfPaging
*
* 02-Feb-2007 (Paolo Devoti) <devotip at gmail.com>)
* Fixed ConPrintfPaging
*/
@ -252,8 +255,8 @@ INT ConPrintfPaging(BOOL NewPage, LPTSTR szFormat, va_list arg_ptr, DWORD nStdHa
/* the number of chars in a roow */
int ScreenCol = 0;
/* chars since end of line */
int CharEL = 0;
/* chars since start of line */
int CharSL = 0;
int i = 0;
@ -261,67 +264,54 @@ INT ConPrintfPaging(BOOL NewPage, LPTSTR szFormat, va_list arg_ptr, DWORD nStdHa
LineCount = 0;
/* rest LineCount and return if no string have been given */
if (szFormat == NULL)
return 0;
if (szFormat == NULL)
return 0;
//get the size of the visual screen that can be printed too
if (!GetConsoleScreenBufferInfo(hConsole, &csbi))
{
// we assuming its a file handle
ConPrintf(szFormat, arg_ptr, nStdHandle);
return 0;
}
{
// we assuming its a file handle
ConPrintf(szFormat, arg_ptr, nStdHandle);
return 0;
}
//subtract 2 to account for "press any key..." and for the blank line at the end of PagePrompt()
ScreenLines = (csbi.srWindow.Bottom - csbi.srWindow.Top) - 4;
ScreenCol = (csbi.srWindow.Right - csbi.srWindow.Left) + 1;
//make sure they didnt make the screen to small
if(ScreenLines<4)
{
ConPrintf(szFormat, arg_ptr, nStdHandle);
return 0;
}
{
ConPrintf(szFormat, arg_ptr, nStdHandle);
return 0;
}
len = _vstprintf (szOut, szFormat, arg_ptr);
pBuf = szOut;
for(i = 0; i < len; i++)
{
if(pBuf[i] == _T('\n'))
{
LineCount++;
CharEL=0;
}
else
{
CharEL++;
if (CharEL>=ScreenCol)
{
if (i+1<len)
{
if(pBuf[i+1] != _T('\n')) LineCount++;
}
CharEL=0;
}
}
/* FIXME : write more that one char at time */
WriteFile (GetStdHandle (nStdHandle),&pBuf[i],sizeof(CHAR),&dwWritten,NULL);
if(LineCount >= ScreenLines)
{
if(_tcsnicmp(&pBuf[i], _T("\n"), 2)!=0)
WriteFile (GetStdHandle (nStdHandle),_T("\n"),sizeof(CHAR),&dwWritten,NULL);
if(PagePrompt() != PROMPT_YES)
{
return 1;
}
//reset the number of lines being printed
LineCount = 0;
CharEL=0;
}
{
// search 'end of string' '\n' or 'end of screen line'
for(; (i < len) && (pBuf[i] != _T('\n') && (CharSL<ScreenCol)) ; i++)
CharSL++;
WriteFile (GetStdHandle (nStdHandle),&pBuf[i-CharSL],sizeof(CHAR)*(CharSL+1),&dwWritten,NULL);
LineCount++;
CharSL=0;
if(LineCount >= ScreenLines)
{
if(_tcsnicmp(&pBuf[i], _T("\n"), 2)!=0)
WriteFile (GetStdHandle (nStdHandle),_T("\n"),sizeof(CHAR),&dwWritten,NULL);
if(PagePrompt() != PROMPT_YES)
{
return 1;
}
//reset the number of lines being printed
LineCount = 0;
CharSL=0;
}
}