int
ACE_SPIPE_Connector::connect (ACE_SPIPE_Stream &new_io,
const ACE_SPIPE_Addr &remote_sap,
ACE_Time_Value *timeout,
const ACE_Addr & /* local_sap */,
int /* reuse_addr */,
int flags,
int perms)
{
ACE_TRACE ("ACE_SPIPE_Connector::connect");
// Make darn sure that the O_CREAT flag is not set!
#if ! defined (ACE_PSOS_DIAB_MIPS)
ACE_CLR_BITS (flags, O_CREAT);
# endif /* !ACE_PSOS_DIAB_MIPS */
ACE_HANDLE handle = ACE_Handle_Ops::handle_timed_open (timeout,
remote_sap.get_path_name (),
flags, perms);
new_io.set_handle (handle);
new_io.remote_addr_ = remote_sap; // class copy.
#if defined (ACE_WIN32) && !defined (ACE_HAS_PHARLAP)
DWORD pipe_mode = PIPE_READMODE_MESSAGE | PIPE_WAIT;
// Set named pipe mode and buffering characteristics.
if (handle != ACE_INVALID_HANDLE)
return ::SetNamedPipeHandleState (handle,
&pipe_mode,
NULL,
NULL);
#endif
return handle == ACE_INVALID_HANDLE ? -1 : 0;
}
int
ACE_SPIPE_Connector::connect (ACE_SPIPE_Stream &new_io,
const ACE_SPIPE_Addr &remote_sap,
ACE_Time_Value *timeout,
const ACE_Addr & /* local_sap */,
int /* reuse_addr */,
int flags,
int perms,
LPSECURITY_ATTRIBUTES sa,
int pipe_mode)
{
ACE_TRACE ("ACE_SPIPE_Connector::connect");
// Make darn sure that the O_CREAT flag is not set!
ACE_CLR_BITS (flags, O_CREAT);
ACE_HANDLE handle;
ACE_UNUSED_ARG (pipe_mode);
#if defined (ACE_WIN32) && \
!defined (ACE_HAS_PHARLAP) && !defined (ACE_HAS_WINCE)
// We need to allow for more than one attempt to connect,
// calculate the absolute time at which we give up.
ACE_Time_Value absolute_time;
if (timeout != 0)
absolute_time = ACE_OS::gettimeofday () + *timeout;
// Loop until success or failure.
for (;;)
{
handle = ACE_OS::open (remote_sap.get_path_name(), flags, perms, sa);
if (handle != ACE_INVALID_HANDLE)
// Success!
break;
// Check if we have a busy pipe condition.
if (::GetLastError() != ERROR_PIPE_BUSY)
// Nope, this is a failure condition.
break;
// This will hold the time out value used in the ::WaitNamedPipe
// call.
DWORD time_out_value;
// Check if we are to block until we connect.
if (timeout == 0)
// Wait for as long as it takes.
time_out_value = NMPWAIT_WAIT_FOREVER;
else
{
// Calculate the amount of time left to wait.
ACE_Time_Value relative_time (absolute_time - ACE_OS::gettimeofday ());
// Check if we have run out of time.
if (relative_time <= ACE_Time_Value::zero)
{
// Mimick the errno value returned by
// ACE::handle_timed_open.
if (*timeout == ACE_Time_Value::zero)
errno = EWOULDBLOCK;
else
errno = ETIMEDOUT;
// Exit the connect loop with the failure.
break;
}
// Get the amount of time remaining for ::WaitNamedPipe.
time_out_value = relative_time.msec ();
}
// Wait for the named pipe to become available.
ACE_TEXT_WaitNamedPipe (remote_sap.get_path_name (),
time_out_value);
// Regardless of the return value, we'll do one more attempt to
// connect to see if it is now available and to return
// consistent error values.
}
// Set named pipe mode if we have a valid handle.
if (handle != ACE_INVALID_HANDLE)
{
// Check if we are changing the pipe mode from the default.
if (pipe_mode != (PIPE_READMODE_BYTE | PIPE_WAIT))
{
DWORD dword_pipe_mode = pipe_mode;
if (!::SetNamedPipeHandleState (handle,
&dword_pipe_mode,
0,
0))
{
// We were not able to put the pipe into the requested
// mode.
ACE_OS::close (handle);
handle = ACE_INVALID_HANDLE;
}
}
}
#else /* ACE_WIN32 && !ACE_HAS_PHARLAP */
handle = ACE::handle_timed_open (timeout,
remote_sap.get_path_name (),
flags, perms, sa);
#endif /* !ACE_WIN32 || ACE_HAS_PHARLAP || ACE_HAS_WINCE */
new_io.set_handle (handle);
new_io.remote_addr_ = remote_sap; // class copy.
return handle == ACE_INVALID_HANDLE ? -1 : 0;
}
int
ACE_SPIPE_Acceptor::accept (ACE_SPIPE_Stream &new_io,
ACE_SPIPE_Addr *remote_addr,
ACE_Time_Value *timeout,
bool restart,
bool reset_new_handle)
{
ACE_TRACE ("ACE_SPIPE_Acceptor::accept");
ACE_UNUSED_ARG (reset_new_handle);
#if defined (ACE_HAS_STREAM_PIPES)
strrecvfd r_handle;
// Note that if THIS->MILLI_SECOND_DELAY == -1 we block on
// ACE_OS::ioctl (). Otherwise, we will wait for the desired number
// of milli seconds using ACE_OS::poll.
if (timeout != 0 &&
ACE::handle_timed_accept (this->get_handle (),
timeout,
restart) == -1)
return -1;
else if (ACE_OS::ioctl (this->get_handle (),
I_RECVFD,
&r_handle) == -1)
return -1;
new_io.set_handle (r_handle.fd);
new_io.local_addr_ = this->local_addr_;
new_io.remote_addr_.set_size (sizeof r_handle.gid + sizeof r_handle.uid);
new_io.remote_addr_.group_id (r_handle.gid);
new_io.remote_addr_.user_id (r_handle.uid);
// This is for compatibility with ACE_SOCK_Acceptor and
// ACE_TLI_Acceptor.
if (remote_addr != 0)
*remote_addr = new_io.remote_addr_;
return 0;
#elif defined (ACE_HAS_WIN32_NAMED_PIPES)
ACE_UNUSED_ARG (restart);
ACE_UNUSED_ARG (remote_addr);
// Check to see if we have a valid pipe
if (this->pipe_handle_ == ACE_INVALID_HANDLE)
return -1;
// open () started the Connect in asynchronous mode. Wait for the event
// in the OVERLAPPED structure to be signalled, then grab the status.
if (this->already_connected_ == 0)
{
if (timeout != 0)
{
ACE_Time_Value abstime (ACE_OS::gettimeofday () + *timeout);
if (this->event_.wait (&abstime) == -1)
return -1;
}
else
if (this->event_.wait () == -1)
return -1;
// Should be here with the ConnectNamedPipe operation complete.
// Steal the already_connected_ flag to record the results.
DWORD unused;
this->already_connected_ = ::GetOverlappedResult (this->pipe_handle_,
&this->overlapped_,
&unused,
FALSE);
}
if (this->already_connected_)
{
new_io.set_handle (this->pipe_handle_);
this->pipe_handle_ = ACE_INVALID_HANDLE;
new_io.local_addr_ = this->local_addr_;
// Create a new instance of the pipe for the next connection.
this->create_new_instance ();
return 0;
}
return -1;
#else
ACE_UNUSED_ARG (restart);
ACE_UNUSED_ARG (timeout);
ACE_UNUSED_ARG (remote_addr);
ACE_UNUSED_ARG (new_io);
ACE_NOTSUP_RETURN (-1);
#endif /* ACE_HAS_STREAM_PIPES */
}