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// $Id$
#include "ace/Pipe.h"
#include "ace/SOCK_Acceptor.h"
#include "ace/SOCK_Connector.h"
#include "ace/Log_Msg.h"
#if defined (ACE_LACKS_INLINE_FUNCTIONS)
#include "ace/Pipe.i"
#endif
ACE_RCSID(ace, Pipe, "$Id$")
void
ACE_Pipe::dump (void) const
{
ACE_TRACE ("ACE_Pipe::dump");
ACE_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this));
ACE_DEBUG ((LM_DEBUG, ACE_LIB_TEXT ("handles_[0] = %d"), this->handles_[0]));
ACE_DEBUG ((LM_DEBUG, ACE_LIB_TEXT ("\nhandles_[1] = %d"), this->handles_[1]));
ACE_DEBUG ((LM_DEBUG, ACE_LIB_TEXT ("\n")));
ACE_DEBUG ((LM_DEBUG, ACE_END_DUMP));
}
int
ACE_Pipe::open (int buffer_size)
{
ACE_TRACE ("ACE_Pipe::open");
#if defined (ACE_WIN32) || defined (ACE_LACKS_SOCKETPAIR) || defined (__Lynx__)
ACE_INET_Addr my_addr;
ACE_SOCK_Acceptor acceptor;
ACE_SOCK_Connector connector;
ACE_SOCK_Stream reader;
ACE_SOCK_Stream writer;
int result = 0;
// Bind listener to any port and then find out what the port was.
if (acceptor.open (ACE_Addr::sap_any) == -1
|| acceptor.get_local_addr (my_addr) == -1)
result = -1;
else
{
ACE_INET_Addr sv_addr (my_addr.get_port_number (),
ACE_LOCALHOST);
// Establish a connection within the same process.
if (connector.connect (writer, sv_addr) == -1)
result = -1;
else if (acceptor.accept (reader) == -1)
{
writer.close ();
result = -1;
}
}
// Close down the acceptor endpoint since we don't need it anymore.
acceptor.close ();
if (result == -1)
return -1;
this->handles_[0] = reader.get_handle ();
this->handles_[1] = writer.get_handle ();
# if !defined (ACE_LACKS_TCP_NODELAY)
int one = 1;
// Make sure that the TCP stack doesn't try to buffer small writes.
// Since this communication is purely local to the host it doesn't
// affect network performance.
if (writer.set_option (ACE_IPPROTO_TCP,
TCP_NODELAY,
&one,
sizeof one) == -1)
{
this->close ();
return -1;
}
# endif /* ! ACE_LACKS_TCP_NODELAY */
# if defined (ACE_LACKS_SOCKET_BUFSIZ)
ACE_UNUSED_ARG (buffer_size);
# else /* ! ACE_LACKS_SOCKET_BUFSIZ */
if (reader.set_option (SOL_SOCKET,
SO_SNDBUF,
ACE_reinterpret_cast (void *, &buffer_size),
sizeof (buffer_size)) == -1
&& errno != ENOTSUP)
{
this->close ();
return -1;
}
else if (writer.set_option (SOL_SOCKET,
SO_RCVBUF,
ACE_reinterpret_cast (void *, &buffer_size),
sizeof (buffer_size)) == -1
&& errno != ENOTSUP)
{
this->close ();
return -1;
}
# endif /* ! ACE_LACKS_SOCKET_BUFSIZ */
#elif defined (ACE_HAS_STREAM_PIPES)
ACE_UNUSED_ARG (buffer_size);
if (ACE_OS::pipe (this->handles_) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_LIB_TEXT ("%p\n"),
ACE_LIB_TEXT ("pipe")),
-1);
int arg = RMSGN;
// Enable "msg no discard" mode, which ensures that record
// boundaries are maintained when messages are sent and received.
if (ACE_OS::ioctl (this->handles_[0],
I_SRDOPT,
(void *) arg) == -1
|| ACE_OS::ioctl (this->handles_[1],
I_SRDOPT,
(void *) arg) == -1)
{
this->close ();
ACE_ERROR_RETURN ((LM_ERROR,
ACE_LIB_TEXT ("%p\n"),
ACE_LIB_TEXT ("ioctl")), -1);
}
#else /* ! ACE_WIN32 && ! ACE_LACKS_SOCKETPAIR && ! ACE_HAS_STREAM_PIPES */
if (ACE_OS::socketpair (AF_UNIX,
SOCK_STREAM,
0,
this->handles_) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_LIB_TEXT ("%p\n"),
ACE_LIB_TEXT ("socketpair")),
-1);
# if defined (ACE_LACKS_SOCKET_BUFSIZ)
ACE_UNUSED_ARG (buffer_size);
# else /* ! ACE_LACKS_SOCKET_BUFSIZ */
if (ACE_OS::setsockopt (this->handles_[0],
SOL_SOCKET,
SO_RCVBUF,
ACE_reinterpret_cast (const char *,
&buffer_size),
sizeof (buffer_size)) == -1
&& errno != ENOTSUP)
{
this->close ();
return -1;
}
if (ACE_OS::setsockopt (this->handles_[1],
SOL_SOCKET,
SO_SNDBUF,
ACE_reinterpret_cast (const char *, &buffer_size),
sizeof (buffer_size)) == -1
&& errno != ENOTSUP)
{
this->close ();
return -1;
}
# endif /* ! ACE_LACKS_SOCKET_BUFSIZ */
#endif /* ! ACE_WIN32 && ! ACE_LACKS_SOCKETPAIR && ! ACE_HAS_STREAM_PIPES */
// Point both the read and write HANDLES to the appropriate socket
// HANDLEs.
return 0;
}
int
ACE_Pipe::open (ACE_HANDLE handles[2])
{
ACE_TRACE ("ACE_Pipe::open");
if (this->open () == -1)
return -1;
else
{
handles[0] = this->handles_[0];
handles[1] = this->handles_[1];
return 0;
}
}
// Do nothing...
ACE_Pipe::ACE_Pipe (void)
{
ACE_TRACE ("ACE_Pipe::ACE_Pipe");
this->handles_[0] = ACE_INVALID_HANDLE;
this->handles_[1] = ACE_INVALID_HANDLE;
}
ACE_Pipe::ACE_Pipe (ACE_HANDLE handles[2])
{
ACE_TRACE ("ACE_Pipe::ACE_Pipe");
if (this->open (handles) == -1)
ACE_ERROR ((LM_ERROR,
ACE_LIB_TEXT ("ACE_Pipe::ACE_Pipe")));
}
ACE_Pipe::ACE_Pipe (ACE_HANDLE read,
ACE_HANDLE write)
{
ACE_TRACE ("ACE_Pipe::ACE_Pipe");
this->handles_[0] = read;
this->handles_[1] = write;
}
int
ACE_Pipe::close (void)
{
ACE_TRACE ("ACE_Pipe::close");
int result = 0;
// Note that the following will work even if we aren't closing down
// sockets because <ACE_OS::closesocket> will just call <::close> in
// that case!
if (this->handles_[0] != ACE_INVALID_HANDLE)
result = ACE_OS::closesocket (this->handles_[0]);
this->handles_[0] = ACE_INVALID_HANDLE;
if (this->handles_[1] != ACE_INVALID_HANDLE)
result |= ACE_OS::closesocket (this->handles_[1]);
this->handles_[1] = ACE_INVALID_HANDLE;
return result;
}
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