workbench/classes/gadgets/texteditor/mcc/AllocFunctions.c

   1 /***************************************************************************
   2
   3  TextEditor.mcc - Textediting MUI Custom Class
   4  Copyright (C) 1997-2000 Allan Odgaard
   5  Copyright (C) 2005-2009 by TextEditor.mcc Open Source Team
   6
   7  This library is free software; you can redistribute it and/or
   8  modify it under the terms of the GNU Lesser General Public
   9  License as published by the Free Software Foundation; either
  10  version 2.1 of the License, or (at your option) any later version.
  11
  12  This library is distributed in the hope that it will be useful,
  13  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  Lesser General Public License for more details.
  16
  17  TextEditor class Support Site:  http://www.sf.net/projects/texteditor-mcc
  18
  19  $Id$
  20
  21 ***************************************************************************/
  22
  23 #include <proto/exec.h>
  24
  25 #include "private.h"
  26
  27 #include "Debug.h"
  28
  29 APTR MyAllocPooled(APTR pool, ULONG length)
  30 {
  31   ULONG *mem;
  32
  33   ENTER();
  34
  35   length += sizeof(ULONG);
  36   if((mem = AllocPooled(pool, length)))
  37   {
  38     *mem = length;
  39     mem += 1;
  40   }
  41
  42   RETURN(mem);
  43   return(mem);
  44 }
  45
  46 VOID MyFreePooled(APTR pool, APTR mem)
  47 {
  48   ULONG *memptr, length;
  49
  50   ENTER();
  51
  52   memptr = &((ULONG *)mem)[-1];
  53   length = *memptr;
  54
  55   FreePooled(pool, memptr, length);
  56
  57   LEAVE();
  58 }
  59
  60 struct line_node *AllocLine(struct InstData *data)
  61 {
  62   struct line_node *newline;
  63
  64   ENTER();
  65
  66   newline = AllocPooled(data->mypool, sizeof(struct line_node));
  67
  68   RETURN(newline);
  69   return newline;
  70 }
  71
  72 void FreeLine(struct line_node* line, struct InstData *data)
  73 {
  74   ENTER();
  75
  76   // we make sure the line is not references by other
  77   // structures as well such as the global blockinfo structure.
  78   if(data->blockinfo.startline == line)
  79   {
  80     if(line->next)
  81       data->blockinfo.startline = line->next;
  82     else
  83     {
  84       data->blockinfo.startline = NULL;
  85       data->blockinfo.enabled = FALSE;
  86     }
  87   }
  88
  89   if(data->blockinfo.stopline == line)
  90   {
  91     if(line->previous)
  92       data->blockinfo.stopline = line->previous;
  93     else
  94     {
  95       data->blockinfo.stopline = NULL;
  96       data->blockinfo.enabled = FALSE;
  97     }
  98   }
  99
 100   // lets use FreePooled to free the memory of the line
 101   FreePooled(data->mypool, line, sizeof(struct line_node));
 102
 103   LEAVE();
 104 }