ACE/ace/FIFO_Recv.cpp

   1 #include "ace/FIFO_Recv.h"
   2 #include "ace/Log_Category.h"
   3 #include "ace/OS_NS_fcntl.h"
   4 #if defined (ACE_HAS_ALLOC_HOOKS)
   5 # include "ace/Malloc_Base.h"
   6 #endif /* ACE_HAS_ALLOC_HOOKS */
   7
   8 #if !defined (__ACE_INLINE__)
   9 #include "ace/FIFO_Recv.inl"
  10 #endif /* __ACE_INLINE__ */
  11
  12 ACE_BEGIN_VERSIONED_NAMESPACE_DECL
  13
  14 ACE_ALLOC_HOOK_DEFINE(ACE_FIFO_Recv)
  15
  16 void
  17 ACE_FIFO_Recv::dump () const
  18 {
  19 #if defined (ACE_HAS_DUMP)
  20   ACE_TRACE ("ACE_FIFO_Recv::dump");
  21   ACELIB_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this));
  22   ACE_FIFO::dump ();
  23   ACELIB_DEBUG ((LM_DEBUG,  ACE_TEXT ("aux_handle_ = %d"), this->aux_handle_));
  24   ACELIB_DEBUG ((LM_DEBUG, ACE_END_DUMP));
  25 #endif /* ACE_HAS_DUMP */
  26 }
  27
  28 int
  29 ACE_FIFO_Recv::close ()
  30 {
  31   ACE_TRACE ("ACE_FIFO_Recv::close");
  32   int result = ACE_FIFO::close ();
  33
  34   if (this->aux_handle_ != ACE_INVALID_HANDLE)
  35     return ACE_OS::close (this->aux_handle_);
  36   else
  37     return result;
  38 }
  39
  40 // Note that persistent means "open fifo for writing, as well as
  41 // reading."  This ensures that the fifo never gets EOF, even if there
  42 // aren't any writers at the moment!
  43
  44 int
  45 ACE_FIFO_Recv::open (const ACE_TCHAR *fifo_name,
  46                      int flags,
  47                      mode_t perms,
  48                      int persistent,
  49                      LPSECURITY_ATTRIBUTES sa)
  50 {
  51   ACE_TRACE ("ACE_FIFO_Recv::open");
  52
  53   if (ACE_FIFO::open (fifo_name, ACE_NONBLOCK | flags, perms, sa) == -1)
  54     return -1;
  55   else if (this->disable (ACE_NONBLOCK) == -1)
  56     return -1;
  57   else if (persistent
  58            && (this->aux_handle_ = ACE_OS::open (fifo_name, O_WRONLY, 0, sa)) == ACE_INVALID_HANDLE)
  59     return -1;
  60   else
  61     return this->get_handle () == ACE_INVALID_HANDLE ? -1 : 0;
  62 }
  63
  64 ACE_FIFO_Recv::ACE_FIFO_Recv ()
  65   : aux_handle_ (ACE_INVALID_HANDLE)
  66 {
  67   ACE_TRACE ("ACE_FIFO_Recv::ACE_FIFO_Recv");
  68 }
  69
  70 ACE_FIFO_Recv::ACE_FIFO_Recv (const ACE_TCHAR *fifo_name,
  71                               int flags,
  72                               mode_t perms,
  73                               int persistent,
  74                               LPSECURITY_ATTRIBUTES sa)
  75   : aux_handle_ (ACE_INVALID_HANDLE)
  76 {
  77   ACE_TRACE ("ACE_FIFO_Recv::ACE_FIFO_Recv");
  78
  79   if (this->ACE_FIFO_Recv::open (fifo_name,
  80                                  flags,
  81                                  perms,
  82                                  persistent,
  83                                  sa) == -1)
  84     ACELIB_ERROR ((LM_ERROR,  ACE_TEXT ("%p\n"),  ACE_TEXT ("ACE_FIFO_Recv")));
  85 }
  86
  87 ACE_END_VERSIONED_NAMESPACE_DECL