dep/ACE_wrappers/ace/Handle_Ops.cpp

   1 // $Id: Handle_Ops.cpp 80826 2008-03-04 14:51:23Z wotte $
   2
   3 #include "ace/Handle_Ops.h"
   4
   5 #include "ace/OS_NS_errno.h"
   6 #include "ace/OS_NS_fcntl.h"
   7 #include "ace/Time_Value.h"
   8
   9 ACE_RCSID (ace,
  10            Handle_Ops,
  11            "$Id: Handle_Ops.cpp 80826 2008-03-04 14:51:23Z wotte $")
  12
  13
  14 ACE_BEGIN_VERSIONED_NAMESPACE_DECL
  15
  16 ACE_HANDLE
  17 ACE::handle_timed_open (ACE_Time_Value *timeout,
  18                         const ACE_TCHAR *name,
  19                         int flags,
  20                         int perms,
  21                         LPSECURITY_ATTRIBUTES sa)
  22 {
  23   ACE_TRACE ("ACE::handle_timed_open");
  24
  25   if (timeout != 0)
  26     {
  27 #if !defined (ACE_WIN32)
  28       // On Win32, ACE_NONBLOCK gets recognized as O_WRONLY so we
  29       // don't use it there
  30       flags |= ACE_NONBLOCK;
  31 #endif /* ACE_WIN32 */
  32
  33       // Open the named pipe or file using non-blocking mode...
  34       ACE_HANDLE const handle = ACE_OS::open (name, flags, perms, sa);
  35
  36       if (handle == ACE_INVALID_HANDLE
  37           && (errno == EWOULDBLOCK
  38               && (timeout->sec () > 0 || timeout->usec () > 0)))
  39         // This expression checks if we were polling.
  40         errno = ETIMEDOUT;
  41
  42       return handle;
  43     }
  44   else
  45     return ACE_OS::open (name, flags, perms, sa);
  46 }
  47
  48 ACE_END_VERSIONED_NAMESPACE_DECL