workbench/libs/codesetslib/src/utils.c

   1 /***************************************************************************
   2
   3  codesets.library - Amiga shared library for handling different codesets
   4  Copyright (C) 2001-2005 by Alfonso [alfie] Ranieri <alforan@tin.it>.
   5  Copyright (C) 2005-2009 by codesets.library 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  codesets.library project: http://sourceforge.net/projects/codesetslib/
  18
  19  $Id$
  20
  21 ***************************************************************************/
  22
  23 #include "lib.h"
  24 #include "debug.h"
  25
  26 /****************************************************************************/
  27
  28 #if !defined(HAVE_ALLOCVECPOOLED)
  29 APTR
  30 allocVecPooled(APTR pool,ULONG size)
  31 {
  32   ULONG *mem;
  33
  34   ENTER();
  35
  36   size += sizeof(ULONG);
  37   if((mem = AllocPooled(pool, size)))
  38     *mem++ = size;
  39
  40   RETURN(mem);
  41   return mem;
  42 }
  43 #endif
  44
  45 /****************************************************************************/
  46
  47 #if !defined(HAVE_FREEVECPOOLED)
  48 void
  49 freeVecPooled(APTR pool,APTR mem)
  50 {
  51   ENTER();
  52
  53   FreePooled(pool,(LONG *)mem - 1,*((LONG *)mem - 1));
  54
  55   LEAVE();
  56 }
  57 #endif
  58
  59 /****************************************************************************/
  60
  61 APTR
  62 reallocVecPooled(APTR pool, APTR mem, ULONG oldSize, ULONG newSize)
  63 {
  64   ULONG *newMem;
  65
  66   ENTER();
  67
  68   if((newMem = allocVecPooled(pool, newSize)) != NULL)
  69   {
  70     memcpy(newMem, mem, (oldSize < newSize) ? oldSize : newSize);
  71
  72     freeVecPooled(pool, mem);
  73   }
  74
  75   RETURN(newMem);
  76   return newMem;
  77 }
  78
  79 /****************************************************************************/
  80
  81 APTR
  82 allocArbitrateVecPooled(ULONG size)
  83 {
  84   ULONG *mem;
  85
  86   ENTER();
  87
  88   ObtainSemaphore(&CodesetsBase->poolSem);
  89   mem = allocVecPooled(CodesetsBase->pool, size);
  90   ReleaseSemaphore(&CodesetsBase->poolSem);
  91
  92   RETURN(mem);
  93   return mem;
  94 }
  95
  96 /****************************************************************************/
  97
  98 void
  99 freeArbitrateVecPooled(APTR mem)
 100 {
 101   ENTER();
 102
 103   ObtainSemaphore(&CodesetsBase->poolSem);
 104   freeVecPooled(CodesetsBase->pool, mem);
 105   ReleaseSemaphore(&CodesetsBase->poolSem);
 106
 107   LEAVE();
 108 }
 109
 110 /****************************************************************************/
 111
 112 APTR
 113 reallocArbitrateVecPooled(APTR mem, ULONG oldSize, ULONG newSize)
 114 {
 115   ENTER();
 116
 117   ObtainSemaphore(&CodesetsBase->poolSem);
 118   mem = reallocVecPooled(CodesetsBase->pool, mem, oldSize, newSize);
 119   ReleaseSemaphore(&CodesetsBase->poolSem);
 120
 121   RETURN(mem);
 122   return mem;
 123 }
 124
 125 /****************************************************************************/
 126
 127 ULONG utf16_strlen(UTF16 *ptr)
 128 {
 129   ULONG l;
 130
 131   for (l=0; ptr[l]; l++);
 132   return l<<1;
 133 }
 134
 135 /****************************************************************************/
 136
 137 ULONG utf32_strlen(UTF32 *ptr)
 138 {
 139   ULONG l;
 140
 141   for (l=0; ptr[l]; l++);
 142   return l<<2;
 143 }