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