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// $Id$
// ============================================================================
//
// = LIBRARY
// examples
//
// = FILENAME
// ex1.cpp
//
// = DESCRIPTION
// Example for using <ACE_UPIPE_SAP> and <ACE_Thread> for
// intra-process communication.
//
// = AUTHOR
// Gerhard Lenzer and Douglas C. Schmidt
//
// ============================================================================
#include "ace/Stream.h"
#include "ace/UPIPE_Acceptor.h"
#include "ace/UPIPE_Connector.h"
ACE_RCSID(UPIPE_SAP, ex1, "$Id$")
#if defined (ACE_HAS_THREADS)
// Global pattern
static ACE_UPIPE_Addr addr (ACE_TEXT("pattern"));
// peer1 thread entry point.
static void *
peer1 (void *)
{
ACE_UPIPE_Stream c_stream;
ACE_DEBUG ((LM_DEBUG,
"(%t) peer1 starting connect\n"));
ACE_UPIPE_Connector con;
if (con.connect (c_stream, addr) == -1)
ACE_ERROR ((LM_ERROR,
"(%t) peer1 ACE_UPIPE_Connector failed\n"));
ACE_Message_Block *mb;
ACE_NEW_RETURN (mb,
ACE_Message_Block (20),
0);
mb->copy ("hello", 6);
if (c_stream.send (mb) == -1)
ACE_ERROR ((LM_ERROR,
"(%t) error peer1 send\n"));
if (c_stream.recv (mb) == -1)
ACE_ERROR ((LM_ERROR,
"(%t) error peer1 recv\n"));
ACE_ERROR ((LM_ERROR,
"(%t) peer1 ack is \"%s\"\n",
mb->rd_ptr ()));
// Free up the memory block.
mb->release ();
// Now try the send()/recv() interface.
char mytext[] = "This string is sent by peer1 as buffer";
ACE_ERROR ((LM_ERROR,
"(%t) peer1 sending text\n"));
if (c_stream.send (mytext, sizeof mytext) == -1)
ACE_ERROR ((LM_ERROR,
"(%t) buffer send from peer1 failed\n"));
char conbuf[30]; // Buffer to receive response.
int i = 0;
for (char c = ' '; c != '!'; i++)
{
if (c_stream.recv (&c, 1) == -1)
ACE_ERROR ((LM_ERROR,
"(%t) buffer recv from peer1 failed\n"));
else
conbuf[i] = c;
}
conbuf[i] = '\0';
ACE_DEBUG ((LM_DEBUG,
"(%t) peer1 received buffer with \"%s\"\n",
conbuf));
c_stream.close ();
return 0;
}
static void *
peer2 (void *)
{
ACE_UPIPE_Acceptor acc (addr);
ACE_UPIPE_Stream s_stream;
// Spawn a peer1 thread.
if (ACE_Thread_Manager::instance ()->spawn (ACE_THR_FUNC (peer1),
(void *) 0,
THR_NEW_LWP | THR_DETACHED) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
"%p\n",
"spawn"),
0);
ACE_DEBUG ((LM_DEBUG,
"(%t) peer2 starting accept\n"));
if (acc.accept (s_stream) == -1)
ACE_ERROR ((LM_ERROR,
"(%t) ACE_UPIPE_Acceptor.accept failed\n"));
ACE_Message_Block *mb = 0;
if (s_stream.recv (mb) == -1)
ACE_ERROR ((LM_ERROR,
"(%t) peer2 recv failed\n"));
ACE_DEBUG ((LM_DEBUG, "(%t) peer2 recv is \"%s\"\n",
mb->rd_ptr ()));
mb->wr_ptr (mb->rd_ptr ());
mb->copy ("thanks", 7);
if (s_stream.send (mb) == -1)
ACE_ERROR ((LM_ERROR,
"(%t) peer2 send failed\n"));
char s_buf[42];
ACE_DEBUG ((LM_DEBUG,
"(%t) peer2 sleeping on recv\n"));
if (s_stream.recv (s_buf, sizeof s_buf) == -1)
ACE_ERROR ((LM_ERROR,
"(%t) peer2 recv failed\n"));
else
ACE_DEBUG ((LM_DEBUG,
"(%t) peer2 received buffer with \"%s\"\n",
s_buf));
ACE_OS::strcpy (s_buf,
"this is the peer2 response!");
if (s_stream.send (s_buf, 30) == -1)
ACE_ERROR ((LM_ERROR,
"(%t) peer2 send failed\n"));
s_stream.close ();
return 0;
}
int
ACE_TMAIN (int, ACE_TCHAR *[])
{
// Spawn a peer2 thread.
if (ACE_Thread_Manager::instance ()->spawn (ACE_THR_FUNC (peer2),
(void *) 0,
THR_NEW_LWP | THR_DETACHED) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
"%p\n",
"spawn"),
1);
// Wait for peer2 and peer1 threads to exit.
ACE_Thread_Manager::instance ()->wait ();
return 0;
}
#else
int
ACE_TMAIN (int, ACE_TCHAR *[])
{
ACE_ERROR_RETURN ((LM_ERROR,
"threads not supported on this platform\n"),
-1);
}
#endif /* ACE_HAS_THREADS */
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