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// Pipe.cpp
// $Id$
#define ACE_BUILD_DLL
#include "ace/SOCK_Acceptor.h"
#include "ace/SOCK_Connector.h"
#include "ace/Pipe.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, ASYS_TEXT ("handles_[0] = %d"), this->handles_[0]));
ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("\nhandles_[1] = %d"), this->handles_[1]));
ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("\n")));
ACE_DEBUG ((LM_DEBUG, ACE_END_DUMP));
}
int
ACE_Pipe::open (void)
{
ACE_TRACE ("ACE_Pipe::open");
#if defined (ACE_WIN32) || defined (ACE_LACKS_SOCKETPAIR)
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 (),
ASYS_TEXT ("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;
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 (IPPROTO_TCP, TCP_NODELAY,
&one, sizeof one) == -1)
return -1;
this->handles_[0] = reader.get_handle ();
this->handles_[1] = writer.get_handle ();
#elif defined (ACE_HAS_STREAM_PIPES)
if (ACE_OS::pipe (this->handles_) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
ASYS_TEXT ("%p\n"),
ASYS_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)
ACE_ERROR_RETURN ((LM_ERROR,
ASYS_TEXT ("%p\n"),
ASYS_TEXT ("ioctl")), -1);
#else
if (ACE_OS::socketpair (AF_UNIX,
SOCK_DGRAM,
0,
this->handles_) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
ASYS_TEXT ("%p\n"),
ASYS_TEXT ("socketpair")),
-1);
#endif /* ACE_WIN32 */
// 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,
ASYS_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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