ppdc/ppdc-shared.cxx

   1 //
   2 // Shared data class for the CUPS PPD Compiler.
   3 //
   4 // Copyright 2007-2009 by Apple Inc.
   5 // Copyright 2002-2005 by Easy Software Products.
   6 //
   7 // Licensed under Apache License v2.0.  See the file "LICENSE" for more information.
   8 //
   9
  10 //
  11 // Include necessary headers...
  12 //
  13
  14 #include "ppdc-private.h"
  15
  16
  17 //
  18 // 'ppdcShared::ppdcShared()' - Create shared data.
  19 //
  20
  21 ppdcShared::ppdcShared()
  22 {
  23   use = 1;
  24 }
  25
  26
  27 //
  28 // 'ppdcShared::~ppdcShared()' - Destroy shared data.
  29 //
  30
  31 ppdcShared::~ppdcShared()
  32 {
  33 }
  34
  35
  36 //
  37 // 'ppdcShared::release()' - Decrement the use count and delete as needed.
  38 //
  39
  40 void
  41 ppdcShared::release(void)
  42 {
  43   use --;
  44
  45 #ifdef DEBUG
  46   if (use < 0)
  47   {
  48     fprintf(stderr, "ERROR: Over-release of %s: %p\n", class_name(), this);
  49     abort();
  50   }
  51 #endif /* DEBUG */
  52
  53   if (use == 0)
  54     delete this;
  55 }
  56
  57
  58 //
  59 // 'ppdcShared::retain()' - Increment the use count for this data.
  60 //
  61
  62 void
  63 ppdcShared::retain()
  64 {
  65   use ++;
  66 }