[cwittich] 28226: revert more.c to r25042

Author: cwittich
Date: Wed Aug  8 00:52:55 2007
New Revision: 28226

URL: http://svn.reactos.org/svn/reactos?rev=28226&view=rev
Log:
revert more.c to r25042

Modified:
    trunk/reactos/base/applications/cmdutils/more/more.c

Modified: trunk/reactos/base/applications/cmdutils/more/more.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/base/applications/cmdutils…
==============================================================================
--- trunk/reactos/base/applications/cmdutils/more/more.c (original)
+++ trunk/reactos/base/applications/cmdutils/more/more.c Wed Aug  8 00:52:55 2007
@@ -1,139 +1,169 @@
-#include <stdlib.h>
-#include <stdio.h>
-#include <time.h>
-#include <unistd.h>
+/* $Id$
+ * 
+ * MORE.C - external command.
+ *
+ * clone from 4nt more command
+ *
+ * 26 Sep 1999 - Paolo Pantaleo &lt;paolopan(a)freemail.it&gt;
+ *     started
+ * Oct 2003 - Timothy Schepens <tischepe at fastmail dot fm>
+ *     use window size instead of buffer size.
+ */
 
-#define rdtscll(val) __asm__ __volatile__ ("rdtsc" : "=A" (val))
+#include <windows.h>
+#include <malloc.h>
+#include <tchar.h>
 
-const int SELECTMODE = 14;
-const int BIGDATA = 10000; // Relying on int = long
-const int MHZ = 2160;
-int *data;
 
-void SelectionSort(int data[], int left, int right) {
-    int i, j;
-	for(i = left; i < right; i++) {
-		int min = i;
-		for(j=i+1; j <= right; j++)
-			if(data[j] < data[min]) min = j;
-		int temp = data[min];
-		data[min] = data[i];
-		data[i] = temp;
-	}
+DWORD len;
+LPTSTR msg = _T("--- continue ---");
+
+
+/*handle for file and console*/
+HANDLE hStdIn;
+HANDLE hStdOut;
+HANDLE hStdErr;
+HANDLE hKeyboard;
+
+
+static VOID
+GetScreenSize (PSHORT maxx, PSHORT maxy)
+{
+	CONSOLE_SCREEN_BUFFER_INFO csbi;
+
+	GetConsoleScreenBufferInfo (hStdOut, &csbi);
+		*maxx = (csbi.srWindow.Right - csbi.srWindow.Left) + 1;
+		*maxy = (csbi.srWindow.Bottom  - csbi.srWindow.Top) - 4;
+
 }
 
-int Partition( int d[], int left, int right)
+
+static
+VOID ConOutPuts (LPTSTR szText)
 {
-	int val =d[left];
-	int lm = left-1;
-	int rm = right+1;
-	for(;;) {
-		do
-			rm--;
-		while (d[rm] > val);
-		
-		do 
-			lm++;
-		while( d[lm] < val);
+	DWORD dwWritten;
 
-		if(lm < rm) {
-			int tempr = d[rm];
-			d[rm] = d[lm];
-			d[lm] = tempr;
-			}
-		else 
-			return rm;
-		}
+	WriteFile (GetStdHandle (STD_OUTPUT_HANDLE), szText, _tcslen(szText), &dwWritten,
NULL);
+	WriteFile (GetStdHandle (STD_OUTPUT_HANDLE), "\n", 1, &dwWritten, NULL);
 }
 
-void Quicksort( int d[], int left, int right)
+
+static VOID
+ConInKey (VOID)
 {
-	if(left < (right-SELECTMODE)) {
-		int split_pt = Partition(d,left, right);
-		Quicksort(d, left, split_pt);
-		Quicksort(d, split_pt+1, right);
-		}
-	else SelectionSort(d, left, right);
+	INPUT_RECORD ir;
+	DWORD dwRead;
+
+	do
+	{
+		ReadConsoleInput (hKeyboard, &ir, 1, &dwRead);
+		if ((ir.EventType == KEY_EVENT) &&
+			(ir.Event.KeyEvent.bKeyDown == TRUE))
+			return;
+	}
+	while (TRUE);
 }
 
-int main(int argc, char* argv[]) {
 
-	data = (int*)calloc(BIGDATA,4);
-	unsigned long int timeStart;
+static VOID
+WaitForKey (VOID)
+{
+	DWORD dwWritten;
 
-	unsigned long int timeReadLoopStart;
-	unsigned long int timeReadLoopEnd;
+	WriteFile (hStdErr,msg , len, &dwWritten, NULL);
 
-	unsigned long int timeSortLoopStart;
-	unsigned long int timeSortLoopEnd;
+	ConInKey();
 
-	unsigned long int timeWriteLoopStart;
-	unsigned long int timeWriteLoopEnd;
+	WriteFile (hStdErr, _T("\n"), 1, &dwWritten, NULL);
 
-	unsigned long int timeEnd;
+//	FlushConsoleInputBuffer (hConsoleIn);
+}
 
-	FILE *randfile;
-	FILE *sortfile;
-	int i,j,thisInt,dataSize = 0;
-	long sumUnsorted = 0;
 
-	rdtscll(timeStart);
+//INT CommandMore (LPTSTR cmd, LPTSTR param)
+int main (int argc, char **argv)
+{
+	SHORT maxx,maxy;
+	SHORT line_count=0,ch_count=0;
+	DWORD i, last;
+	HANDLE hFile = INVALID_HANDLE_VALUE;
+	TCHAR szFullPath[MAX_PATH];
 
-	randfile = (argc < 2) ? stdin : fopen(argv[1],"r");
-	sortfile = (argc < 3) ? stdout : fopen(argv[2],"w");
-	if (randfile == NULL || sortfile == NULL) {
-		fprintf(stderr,"Could not open all files.\n");
-		return 1;
+	/*reading/writing buffer*/
+	TCHAR *buff;
+
+	/*bytes written by WriteFile and ReadFile*/
+	DWORD dwRead,dwWritten;
+
+	/*ReadFile() return value*/
+	BOOL bRet;
+
+	len = _tcslen (msg);
+	hStdIn = GetStdHandle(STD_INPUT_HANDLE);
+	hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
+	hStdErr = GetStdHandle(STD_ERROR_HANDLE);
+
+	if (argc > 1 && _tcsncmp (argv[1], _T("/?"), 2) == 0)
+	{
+		ConOutPuts(_T("Help text still missing!!"));
+		return 0;
 	}
 
-	rdtscll(timeReadLoopStart);
+	hKeyboard = CreateFile (_T("CONIN$"), GENERIC_READ,
+	                        0,NULL,OPEN_ALWAYS,0,0);
 
-	i = 0;
-	while (!feof(randfile)) {
-		fscanf(randfile,"%d",&thisInt);
-		if (feof(randfile)) { break; }
-		data[i] = thisInt;
-		sumUnsorted += thisInt;
-		//fprintf(stdout,"[%d] Read item: %d\n",i,thisInt);
-		i++;
-		if (i >= BIGDATA) { 
-			break;
+	GetScreenSize(&maxx,&maxy);
+
+	buff=malloc(4096);
+
+	FlushConsoleInputBuffer (hKeyboard);	
+
+	if(argc > 1)
+	{
+		GetFullPathName(argv[1], MAX_PATH, szFullPath, NULL);
+		hFile = CreateFile (szFullPath, GENERIC_READ,
+	                        0,NULL,OPEN_ALWAYS,0,0);
+	}
+
+	do
+	{
+		if(hFile != INVALID_HANDLE_VALUE)
+		{			
+			bRet = ReadFile(hFile,buff,4096,&dwRead,NULL);
 		}
+		else
+		{
+			bRet = ReadFile(hStdIn,buff,4096,&dwRead,NULL);
+		}
+
+		for(last=i=0;i<dwRead && bRet;i++)
+		{
+			ch_count++;
+			if(buff[i] == _T('\n') || ch_count == maxx)
+			{
+				ch_count=0;
+				line_count++;
+				if (line_count == maxy)
+				{
+					line_count = 0;
+					WriteFile(hStdOut,&buff[last], i-last+1, &dwWritten, NULL);
+					last=i+1;
+					FlushFileBuffers (hStdOut);
+					WaitForKey ();
+				}
+			}
+		}
+		if (last<dwRead && bRet)
+			WriteFile(hStdOut,&buff[last], dwRead-last, &dwWritten, NULL);
+
 	}
-	fclose(randfile);
-	dataSize = i;
+	while(dwRead>0 && bRet);
 
-	rdtscll(timeReadLoopEnd);
-	rdtscll(timeSortLoopStart);
-	
-	Quicksort(data, 0, dataSize-1);
-
-	rdtscll(timeSortLoopEnd);
-	rdtscll(timeWriteLoopStart);
-
-	int last = -1;
-	for(j = 0; j < dataSize; j++) {
-		if (data[j] < last) {
-			fprintf(stderr,"The data is not in order\n");
-			fprintf(stderr,"Noticed the problem at j = %d\n",j);
-			fclose(sortfile);
-			return 1;
-		} else {
-			fprintf(sortfile,"%d\n",data[j]);
-		}
-	}
-	fclose(sortfile);	
-
-	rdtscll(timeWriteLoopEnd);
-
-	rdtscll(timeEnd);
-
-	fprintf(stdout,"Sorted %d items.\n",dataSize);
-	fprintf(stdout,"Open Files   : %ldt.\n",(long)timeReadLoopStart -
(long)timeStart);
-	fprintf(stdout,"Read Data    : %ldt.\n",(long)timeReadLoopEnd -
(long)timeReadLoopStart);
-	fprintf(stdout,"Sort Data    : %ldt.\n",(long)timeSortLoopEnd -
(long)timeSortLoopStart);
-	fprintf(stdout,"Write Data   : %ldt.\n",(long)timeWriteLoopEnd -
(long)timeWriteLoopStart);
-	fprintf(stdout,"Total Time   : %ldt.\n",(long)timeEnd - (long)timeStart);
+	free (buff);
+	CloseHandle (hKeyboard);
+	CloseHandle (hFile);
 
 	return 0;
 }
+
+/* EOF */