ACE/apps/JAWS2/JAWS/FILE.cpp

   1 #include "ace/Guard_T.h"
   2
   3 #include "JAWS/FILE.h"
   4
   5
   6 JAWS_FILE::JAWS_FILE ()
   7   : map_ (0)
   8 {
   9 }
  10
  11 JAWS_FILE::~JAWS_FILE ()
  12 {
  13   delete this->map_;
  14   this->map_ = 0;
  15 }
  16
  17 ACE_Mem_Map *
  18 JAWS_FILE::mem_map (int length,
  19                     int prot,
  20                     int share,
  21                     void *addr,
  22                     ACE_OFF_T offset,
  23                     LPSECURITY_ATTRIBUTES sa) const
  24 {
  25   JAWS_FILE *mutable_this = (JAWS_FILE *) this;
  26   return mutable_this->mem_map (length, prot, share, addr, offset, sa);
  27 }
  28
  29 ACE_Mem_Map *
  30 JAWS_FILE::mem_map (int length,
  31                     int prot,
  32                     int share,
  33                     void *addr,
  34                     ACE_OFF_T offset,
  35                     LPSECURITY_ATTRIBUTES sa)
  36 {
  37   if (this->map_ == 0)
  38     {
  39       ACE_GUARD_RETURN (ACE_SYNCH_MUTEX, g ,this->lock_, 0);
  40
  41       if (this->map_ == 0)
  42         {
  43           this->map_ = new ACE_Mem_Map;
  44           if (this->map_ != 0)
  45             {
  46               int r = this->map_->map (this->get_handle (),
  47                                        static_cast<size_t> (length),
  48                                        prot,
  49                                        share,
  50                                        addr,
  51                                        offset,
  52                                        sa);
  53               if (r < 0)
  54                 {
  55                   delete this->map_;
  56                   this->map_ = 0;
  57                 }
  58             }
  59         }
  60     }
  61
  62   return this->map_;
  63 }
  64
  65
  66 ACE_Mem_Map *
  67 JAWS_FILE::map () const
  68 {
  69   return this->map_;
  70 }