Every single file in this commit had a memory leak where a resource is

allocated in the constructor but not de-allocated in the destructor.

This commit fixes that.

1 files changed, 17 insertions, 15 deletions

diff --git a/core/apps/embeddedkonsole/TEScreen.cpp b/core/apps/embeddedkonsole/TEScreen.cpp
index 1db34d2..30ff49d 100644
--- a/core/apps/embeddedkonsole/TEScreen.cpp
+++ b/core/apps/embeddedkonsole/TEScreen.cpp
@@ -56,47 +56,47 @@
 
 #define HERE printf("%s(%d): here\n",__FILE__,__LINE__)
 
 //FIXME: this is emulation specific. Use FALSE for xterm, TRUE for ANSI.
 //FIXME: see if we can get this from terminfo.
 #define BS_CLEARS FALSE
 
 #define loc(X,Y) ((Y) * columns + (X))
 
 /*! creates a `TEScreen' of `lines' lines and `columns' columns.
 */
 
-TEScreen::TEScreen(int lines, int columns)
+TEScreen::TEScreen(int _lines, int _columns) :
+  lines(_lines),
+  columns(_columns),
+  tabstops(0),
+  histCursor(0),
+  horzCursor(0)
 {
-  this->lines   = lines;
-  this->columns = columns;
 //  odebug << "Columns " << columns << "" << oendl; 
   
-  image      = (ca*) malloc(lines*columns*sizeof(ca));
-  tabstops   = NULL; initTabStops();
-
-  histCursor = 0;
-  horzCursor = 0;
+  image = new ca[lines*columns];
+  initTabStops();
 
   clearSelection();
   reset();
 }
 
 /*! Destructor
 */
 
 TEScreen::~TEScreen()
 {
-  free(image);
-  if (tabstops) free(tabstops);
+  delete [] image;
+  delete [] tabstops;
 }
 
 /* ------------------------------------------------------------------------- */
 /*                                                                           */
 /* Normalized                    Screen Operations                           */
 /*                                                                           */
 /* ------------------------------------------------------------------------- */
 
 // Cursor Setting --------------------------------------------------------------
 
 /*! \section Cursor
 
@@ -387,47 +387,47 @@ void TEScreen::restoreCursor()
 
 void TEScreen::resizeImage(int new_lines, int new_columns)
 {
     if (cuY > new_lines-1)  {
 // attempt to preserve focus and lines
         bmargin = lines-1; //FIXME: margin lost
         for (int i = 0; i < cuY-(new_lines-1); i++) {
             addHistLine(); scrollUp(horzCursor,1);
         }
     }
 
       // make new image
-    ca* newimg = (ca*)malloc( new_lines * new_columns * sizeof( ca));
+    ca* newimg = new ca[new_lines * new_columns];
 
     clearSelection();
 
       // clear new image
     for (int y = 0; y < new_lines; y++)
         for (int x = 0; x < new_columns; x++) {
             newimg[y*new_columns+x].c = ' ';
             newimg[y*new_columns+x].f = DEFAULT_FORE_COLOR;
             newimg[y*new_columns+x].b = DEFAULT_BACK_COLOR;
             newimg[y*new_columns+x].r = DEFAULT_RENDITION;
         }
     int cpy_lines   = QMIN(new_lines,  lines);
     int cpy_columns = QMIN(new_columns,columns);
       // copy to new image
     for (int y = 0; y < cpy_lines; y++)
         for (int x = 0; x < cpy_columns; x++) {
             newimg[y*new_columns+x].c = image[loc(x,y)].c;
             newimg[y*new_columns+x].f = image[loc(x,y)].f;
             newimg[y*new_columns+x].b = image[loc(x,y)].b;
             newimg[y*new_columns+x].r = image[loc(x,y)].r;
         }
-    free(image);
+    delete [] image;
     image = newimg;
     lines = new_lines;
     columns = new_columns;
     cuX = QMIN(cuX,columns-1);
     cuY = QMIN(cuY,lines-1);
 
       // FIXME: try to keep values, evtl.
     tmargin=0;
     bmargin=lines-1;
     initTabStops();
     clearSelection();
 }
@@ -498,25 +498,25 @@ void TEScreen::effectiveRendition()
     returns the image.
 
     Get the size of the image by \sa getLines and \sa getColumns.
 
     NOTE that the image returned by this function must later be
     freed.
 
 */
 
 ca* TEScreen::getCookedImage()
 {
  int x,y;
-  ca* merged = (ca*)malloc(lines*columns*sizeof(ca));
+  ca* merged = new ca[lines*columns];
   ca dft(' ',DEFAULT_FORE_COLOR,DEFAULT_BACK_COLOR,DEFAULT_RENDITION);
 
   if (histCursor > hist.getLines()) {
     histCursor = hist.getLines();
   }
 
   for (y = 0; (y < lines) && (y < (hist.getLines()-histCursor)); y++)
   {
     int len = QMIN(columns,hist.getLineLen(y+histCursor));
     int yp  = y*columns;
     int yq  = (y+histCursor)*columns;
 
@@ -614,26 +614,28 @@ void TEScreen::clearTabStops()
 {
   for (int i = 0; i < columns; i++) tabstops[i-1] = FALSE;
 }
 
 void TEScreen::changeTabStop(bool set)
 {
   if (cuX >= columns) return;
   tabstops[cuX] = set;
 }
 
 void TEScreen::initTabStops()
 {
-  if (tabstops) free(tabstops);
-  tabstops = (bool*)malloc(columns*sizeof(bool));
+  if (tabstops)
+    delete [] tabstops;
+
+  tabstops = new bool[columns];
   // Arrg! The 1st tabstop has to be one longer than the other.
   // i.e. the kids start counting from 0 instead of 1.
   // Other programs might behave correctly. Be aware.
   for (int i = 0; i < columns; i++) tabstops[i] = (i%8 == 0 && i != 0);
 }
 
 /*!
    This behaves either as IND (Screen::Index) or as NEL (Screen::NextLine)
    depending on the NewLine Mode (LNM). This mode also
    affects the key sequence returned for newline ([CR]LF).
 */