ACE/ace/Handle_Ops.cpp

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