ACE/ace/MEM_SAP.cpp

   1 #include "ace/MEM_SAP.h"
   2
   3 #if (ACE_HAS_POSITION_INDEPENDENT_POINTERS == 1)
   4
   5 #if !defined (__ACE_INLINE__)
   6 #include "ace/MEM_SAP.inl"
   7 #endif /* __ACE_INLINE__ */
   8
   9
  10
  11 ACE_BEGIN_VERSIONED_NAMESPACE_DECL
  12
  13 ACE_ALLOC_HOOK_DEFINE(ACE_MEM_SAP)
  14
  15 void
  16 ACE_MEM_SAP::dump (void) const
  17 {
  18 #if defined (ACE_HAS_DUMP)
  19   ACE_TRACE ("ACE_MEM_SAP::dump");
  20
  21   ACELIB_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this));
  22   if (this->shm_malloc_ != 0)
  23     this->shm_malloc_->dump ();
  24   else
  25     ACELIB_DEBUG ((LM_DEBUG, ACE_TEXT ("ACE_MEM_SAP uninitialized.\n")));
  26   ACELIB_DEBUG ((LM_DEBUG, ACE_END_DUMP));
  27 #endif /* ACE_HAS_DUMP */
  28 }
  29
  30 ACE_MEM_SAP::ACE_MEM_SAP (void)
  31   : handle_ (ACE_INVALID_HANDLE),
  32     shm_malloc_ (0)
  33 {
  34   // ACE_TRACE ("ACE_MEM_SAP::ACE_MEM_SAP");
  35 }
  36
  37 ACE_MEM_SAP::~ACE_MEM_SAP (void)
  38 {
  39   // ACE_TRACE ("ACE_MEM_SAP::~ACE_MEM_SAP");
  40   delete this->shm_malloc_;
  41 }
  42
  43 int
  44 ACE_MEM_SAP::fini ()
  45 {
  46   ACE_TRACE ("ACE_MEM_SAP::fini");
  47
  48   return this->close_shm_malloc ();
  49 }
  50
  51 int
  52 ACE_MEM_SAP::create_shm_malloc (const ACE_TCHAR *name,
  53                                 MALLOC_OPTIONS *options)
  54 {
  55   ACE_TRACE ("ACE_MEM_SAP::create_shm_malloc");
  56
  57   if (this->shm_malloc_ != 0)
  58     return -1;                  // already initialized.
  59
  60   ACE_NEW_RETURN (this->shm_malloc_,
  61                   MALLOC_TYPE (name,
  62                                0,
  63                                options),
  64                   -1);
  65
  66   if (this->shm_malloc_->bad () != 0)
  67     {
  68       this->shm_malloc_->remove (); // Cleanup OS resources
  69       delete this->shm_malloc_;
  70       this->shm_malloc_ = 0;
  71       return -1;
  72     }
  73
  74   return 0;
  75 }
  76
  77 int
  78 ACE_MEM_SAP::close_shm_malloc (void)
  79 {
  80   ACE_TRACE ("ACE_MEM_SAP::close_shm_malloc");
  81
  82   int retv = -1;
  83
  84   if (this->shm_malloc_ != 0)
  85     if (this->shm_malloc_->release (1) == 0)
  86       ACE_Process_Mutex::unlink (this->shm_malloc_->memory_pool ().
  87                                  mmap ().filename ());
  88
  89   delete this->shm_malloc_;
  90   this->shm_malloc_ = 0;
  91
  92   return retv;
  93 }
  94
  95 #endif /* ACE_HAS_POSITION_INDEPENDENT_POINTERS == 1 */
  96
  97 ACE_END_VERSIONED_NAMESPACE_DECL