dep/ACE_wrappers/ace/IO_SAP.cpp

   1 // $Id: IO_SAP.cpp 80826 2008-03-04 14:51:23Z wotte $
   2
   3 #include "ace/IO_SAP.h"
   4
   5 #include "ace/Log_Msg.h"
   6 #include "ace/OS_NS_unistd.h"
   7 #include "ace/OS_NS_errno.h"
   8 #include "ace/OS_NS_fcntl.h"
   9 #include "ace/os_include/os_signal.h"
  10
  11 #if !defined (__ACE_INLINE__)
  12 #include "ace/IO_SAP.inl"
  13 #endif /* __ACE_INLINE__ */
  14
  15 ACE_RCSID(ace, IO_SAP, "$Id: IO_SAP.cpp 80826 2008-03-04 14:51:23Z wotte $")
  16
  17 ACE_BEGIN_VERSIONED_NAMESPACE_DECL
  18
  19 ACE_ALLOC_HOOK_DEFINE(ACE_IO_SAP)
  20
  21 // This is the do-nothing constructor.  It does not perform a
  22 // ACE_OS::open system call.
  23
  24 ACE_IO_SAP::ACE_IO_SAP (void)
  25   : handle_ (ACE_INVALID_HANDLE)
  26 {
  27   ACE_TRACE ("ACE_IO_SAP::ACE_IO_SAP");
  28 }
  29
  30 void
  31 ACE_IO_SAP::dump (void) const
  32 {
  33 #if defined (ACE_HAS_DUMP)
  34   ACE_TRACE ("ACE_IO_SAP::dump");
  35
  36   ACE_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this));
  37   ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("handle_ = %d"), this->handle_));
  38   ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("\npid_ = %d"), this->pid_));
  39   ACE_DEBUG ((LM_DEBUG, ACE_END_DUMP));
  40 #endif /* ACE_HAS_DUMP */
  41 }
  42
  43 // Cache for the process ID.
  44 pid_t ACE_IO_SAP::pid_ = 0;
  45
  46 int
  47 ACE_IO_SAP::enable (int value) const
  48 {
  49   ACE_TRACE ("ACE_IO_SAP::enable");
  50   /* First-time in initialization. */
  51   if (ACE_IO_SAP::pid_ == 0)
  52     ACE_IO_SAP::pid_ = ACE_OS::getpid ();
  53
  54   switch (value)
  55     {
  56 #if defined (SIGURG)
  57     case SIGURG:
  58     case ACE_SIGURG:
  59 #if defined (F_SETOWN)
  60       return ACE_OS::fcntl (this->handle_,
  61                             F_SETOWN,
  62                             ACE_IO_SAP::pid_);
  63 #else
  64       ACE_NOTSUP_RETURN (-1);
  65 #endif /* F_SETOWN */
  66 #endif /* SIGURG */
  67 #if defined (SIGIO)
  68     case SIGIO:
  69     case ACE_SIGIO:
  70 #if defined (F_SETOWN) && defined (FASYNC)
  71       if (ACE_OS::fcntl (this->handle_,
  72                          F_SETOWN,
  73                          ACE_IO_SAP::pid_) == -1
  74           || ACE::set_flags (this->handle_,
  75                              FASYNC) == -1)
  76         return -1;
  77       break;
  78 #else
  79       ACE_NOTSUP_RETURN (-1);
  80 #endif /* F_SETOWN && FASYNC */
  81 #else  // <==
  82       ACE_NOTSUP_RETURN (-1);
  83 #endif /* SIGIO <== */
  84     case ACE_NONBLOCK:
  85       if (ACE::set_flags (this->handle_,
  86                           ACE_NONBLOCK) == -1)
  87         return -1;
  88       break;
  89     default:
  90       return -1;
  91     }
  92
  93   return 0;
  94 }
  95
  96 int
  97 ACE_IO_SAP::disable (int value) const
  98 {
  99   ACE_TRACE ("ACE_IO_SAP::disable");
 100
 101   switch (value)
 102     {
 103 #if defined (SIGURG)
 104     case SIGURG:
 105     case ACE_SIGURG:
 106 #if defined (F_SETOWN)
 107       if (ACE_OS::fcntl (this->handle_,
 108                          F_SETOWN, 0) == -1)
 109         return -1;
 110       break;
 111 #else
 112       ACE_NOTSUP_RETURN (-1);
 113 #endif /* F_SETOWN */
 114 #endif /* SIGURG */
 115 #if defined (SIGIO)
 116     case SIGIO:
 117     case ACE_SIGIO:
 118 #if defined (F_SETOWN) && defined (FASYNC)
 119       if (ACE_OS::fcntl (this->handle_,
 120                          F_SETOWN,
 121                          0) == -1
 122           || ACE::clr_flags (this->handle_, FASYNC) == -1)
 123         return -1;
 124       break;
 125 #else
 126       ACE_NOTSUP_RETURN (-1);
 127 #endif /* F_SETOWN && FASYNC */
 128 #else  // <==
 129       ACE_NOTSUP_RETURN (-1);
 130 #endif /* SIGIO <== */
 131     case ACE_NONBLOCK:
 132       if (ACE::clr_flags (this->handle_,
 133                                      ACE_NONBLOCK) == -1)
 134         return -1;
 135       break;
 136     default:
 137       return -1;
 138     }
 139   return 0;
 140 }
 141
 142 ACE_END_VERSIONED_NAMESPACE_DECL