1 files changed, 311 insertions, 0 deletions
diff --git a/ACE/tests/FIFO_Test.cpp b/ACE/tests/FIFO_Test.cpp
new file mode 100644
index 00000000000..8a7f7a64a44
--- /dev/null
+++ b/ACE/tests/FIFO_Test.cpp
@@ -0,0 +1,311 @@
+// $Id$
+
+// ============================================================================
+//
+// = LIBRARY
+//    tests
+//
+// = FILENAME
+//    FIFO_Test.cpp
+//
+// = DESCRIPTION
+//     This is a test of basic ACE_FIFO_* class functionality.
+//     The test forks two processes or spawns two threads (depending
+//     upon the platform) and then tests various data exchange
+//     scenarios.
+//
+// = AUTHOR
+//    Steve Huston <shuston@riverace.com>
+//
+// ============================================================================
+
+#include "test_config.h"
+#include "ace/OS_NS_string.h"
+#include "ace/OS_NS_sys_stat.h"
+#include "ace/OS_NS_sys_wait.h"
+#include "ace/OS_NS_unistd.h"
+#include "ace/ACE.h"
+#include "ace/FIFO_Send_Msg.h"
+#include "ace/FIFO_Recv_Msg.h"
+#include "ace/Handle_Set.h"
+#include "ace/Lib_Find.h"
+#include "ace/Thread.h"
+#include "ace/Thread_Manager.h"
+
+ACE_RCSID(tests, SOCK_Test, "$Id$")
+
+#if !defined (ACE_LACKS_MKFIFO)
+
+static const char ACE_ALPHABET[] = "abcdefghijklmnopqrstuvwxyz";
+
+// This length is used for the "big buffer" send/receive.
+static const size_t big_size = (BUFSIZ * 4);
+
+static void *
+client (void *arg)
+{
+  ACE_TCHAR *fifo_path = reinterpret_cast <ACE_TCHAR *> (arg);
+  ACE_FIFO_Send_Msg fifo;
+  ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%P|%t) client opening %s\n"), fifo_path));
+  if (fifo.open (fifo_path) == -1)
+    ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("(%P|%t) %p\n"), fifo_path), 0);
+
+  // Try some transfers - the server part is expecting this data.
+  // First, try a nice, easy send.
+  ssize_t send_count;
+  ssize_t expect = static_cast <ssize_t> (ACE_OS::strlen (ACE_ALPHABET));
+  send_count = fifo.send (ACE_ALPHABET, ACE_OS::strlen (ACE_ALPHABET));
+  if (send_count == expect)
+    {
+      // Ok, so far so good. Now try one that will overflow the reader
+      // side to be sure it properly tosses the overflow. Then send another
+      // to be sure it finds the start of the next message ok.
+      char big[big_size];
+      for (size_t i = 0; i < big_size; ++i)
+        big[i] = (i % 2) ? 0x05 : 0x0A;  // Make nice pattern in blown stack
+      expect = static_cast <ssize_t> (big_size);
+      send_count = fifo.send (big, big_size);
+      if (send_count == expect)
+        {
+          expect = static_cast <ssize_t> (ACE_OS::strlen (ACE_ALPHABET));
+          send_count = fifo.send (ACE_ALPHABET, ACE_OS::strlen (ACE_ALPHABET));
+          if (send_count != expect)
+            ACE_ERROR ((LM_ERROR,
+                        ACE_TEXT ("(%P|%t) Final send; sent %d, expected %d")
+                        ACE_TEXT ("%p\n"),
+                        send_count, expect, ACE_TEXT ("send")));
+          else
+            ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%P|%t) All sends ok\n")));
+        }
+      else
+        {
+          ACE_ERROR
+            ((LM_ERROR,
+              ACE_TEXT ("(%P|%t) Second send expected %d; sent %d. %p\n"),
+              expect, send_count, ACE_TEXT ("send")));
+        }
+    }
+  else
+    {
+      ACE_ERROR ((LM_ERROR,
+                  ACE_TEXT ("(%P|%t) First send expected %d; sent %d. %p\n"),
+                  expect, send_count, ACE_TEXT ("send")));
+    }
+
+  if (fifo.close () != 0)
+    ACE_ERROR ((LM_ERROR, ACE_TEXT ("(%P|%t) %p\n"), ACE_TEXT ("fifo close")));
+
+  return 0;
+}
+
+static void *
+server (void *arg)
+{
+  ACE_FIFO_Recv_Msg *fifo = reinterpret_cast <ACE_FIFO_Recv_Msg *> (arg);
+
+  // Wait for the client to get going and open the FIFO.
+  errno = 0;
+  ACE_Handle_Set h;
+  ACE_Time_Value delay (10);
+  h.set_bit (fifo->get_handle ());
+  if (ACE::select (h.max_set () + 1, h, &delay) == -1)
+    ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("(%P|%t) server %p\n"),
+                       ACE_TEXT ("select")),
+                      0);
+
+  // On AIX, select() always seems to select a fifo handle as a normal file,
+  // always readable. Just wait a second...
+# if defined (AIX) || defined (HPUX) || defined (__osf__)
+  ACE_OS::sleep (1);
+# endif /* AIX || HPUX */
+
+  // Read the things the client is sending; alphabet, huge overflow, then
+  // alphabet.
+
+  char buf[BUFSIZ];
+  ssize_t recv_count;
+  ssize_t expect = static_cast <ssize_t> (ACE_OS::strlen (ACE_ALPHABET));
+  recv_count = fifo->recv (buf, sizeof (buf));
+  if (recv_count != expect)
+    ACE_ERROR_RETURN ((LM_ERROR,
+                       ACE_TEXT ("(%P|%t) Recv 1 expected %d, got %d. %p\n"),
+                       expect, recv_count, ACE_TEXT ("recv")),
+                      0);
+  buf[recv_count] = '\0';
+  if (ACE_OS::strcmp (buf, ACE_ALPHABET) != 0)
+    ACE_ERROR ((LM_ERROR,
+                ACE_TEXT ("(%P|%t) Recv 1 expected alphabet; got %s\n"),
+                buf));
+
+  // See documented return values for ACE_FIFO_Recv_Msg...
+  // We are being sent a message much longer than BUFSIZ.
+  // If this platform has STREAM pipes, the entire message will come
+  // through and we can grab it all. If not, then ACE_FIFO_Recv_Msg ditches
+  // the part of the message we don't read. This is rather a pain in the
+  // neck, but the API doesn't return info that more data is in the message
+  // (for STREAM pipes). When non-ACE_HAS_STREAM_PIPES discards data, the
+  // returned length will be larger than requested, though only the requested
+  // number of bytes are written to the buffer.
+#if defined (ACE_HAS_STREAM_PIPES)
+  for (size_t remaining = big_size;
+       remaining > 0;
+       remaining -= recv_count)
+    {
+#endif /* ACE_HAS_STREAM_PIPES */
+
+      // recv_count is sizeof(buf) on ACE_HAS_STREAM_PIPES; big_size on others.
+#if defined (ACE_HAS_STREAM_PIPES)
+      expect = static_cast <ssize_t> (sizeof (buf));
+#else
+      expect = static_cast <ssize_t> (big_size);
+#endif /* ACE_HAS_STREAM_PIPES */
+      recv_count = fifo->recv (buf, sizeof (buf));
+      if (recv_count != expect)
+        ACE_ERROR_RETURN ((LM_ERROR,
+                           ACE_TEXT ("(%P|%t) Recv 2 expected %d, ")
+                           ACE_TEXT ("got %d. %p\n"),
+                           expect, recv_count, ACE_TEXT ("recv")),
+                          0);
+#if defined (ACE_HAS_STREAM_PIPES)
+    }
+#endif /* ACE_HAS_STREAM_PIPES */
+
+  expect = static_cast <ssize_t> (ACE_OS::strlen (ACE_ALPHABET));
+  recv_count = fifo->recv (buf, sizeof (buf));
+  if (recv_count != expect)
+    ACE_ERROR_RETURN ((LM_ERROR,
+                       ACE_TEXT ("(%P|%t) Recv 3 expected %d, got %d. %p\n"),
+                       expect, recv_count, ACE_TEXT ("recv")),
+                      0);
+  buf[recv_count] = '\0';
+  if (ACE_OS::strcmp (buf, ACE_ALPHABET) != 0)
+    ACE_ERROR ((LM_ERROR,
+                ACE_TEXT ("(%P|%t) Recv 3 expected alphabet; got %s\n"),
+                buf));
+  else
+    ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%P|%t) All receives ok\n")));
+  return 0;
+}
+
+static int
+test_fifo_msg (void)
+{
+  // Reader side opens first - it may fail if fifo not supported on this
+  // platform.
+  ACE_TCHAR fifo_path[MAXPATHLEN];
+  if (ACE::get_temp_dir (fifo_path, MAXPATHLEN) == -1)
+    ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("%p\n"),
+                       ACE_TEXT ("get_temp_dir")), 1);
+  ACE_OS::strcat (fifo_path, ACE_TEXT ("FIFO_Test"));
+  ACE_FIFO_Recv_Msg read_side;
+  // Open read only, not persistent (4th arg is 0)
+  if (-1 == read_side.open (fifo_path,
+                            O_CREAT | O_RDONLY,
+                            ACE_DEFAULT_FILE_PERMS,
+                            0))
+    {
+#if defined (ACE_WIN32)
+      if (errno == ENOTSUP)
+        {
+          ACE_DEBUG ((LM_DEBUG,
+                      ACE_TEXT ("FIFO not supported on Win32; ")
+                      ACE_TEXT ("this is correct.\n")));
+          return 0;
+        }
+#endif /* ACE_WIN32 */
+      ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("%p\n"),
+                         ACE_TEXT ("ACE_FIFO_Recv_Msg::open")),
+                        1);
+    }
+
+  // Ok, the FIFO opened clean for read. Now it's safe to spawn a
+  // process/thread and test some transfers.
+
+  int status = 0;    // Test status; innocent until proven guilty.
+
+#if !defined (ACE_LACKS_FORK)
+  switch (ACE_OS::fork (ACE_TEXT ("child")))
+    {
+    case -1:
+      ACE_ERROR ((LM_ERROR, ACE_TEXT ("%p\n"), ACE_TEXT ("fork failed")));
+      status = 1;
+      break;
+    case 0:
+      client (fifo_path);
+      ACE_OS::exit (0);
+      /* NOTREACHED */
+    default:
+      server (&read_side);
+      ACE_OS::wait ();
+    }
+#elif defined (ACE_HAS_THREADS)
+  if (ACE_Thread_Manager::instance ()->spawn
+        (ACE_THR_FUNC (server),
+         &read_side,
+         THR_NEW_LWP | THR_DETACHED) == -1)
+    {
+      ACE_ERROR ((LM_ERROR, ACE_TEXT ("%p\n"), ACE_TEXT ("server spawn")));
+      ++status;
+    }
+
+  if (ACE_Thread_Manager::instance ()->spawn
+        (ACE_THR_FUNC (client),
+         fifo_path,
+         THR_NEW_LWP | THR_DETACHED) == -1)
+    {
+      ACE_ERROR ((LM_ERROR, ACE_TEXT ("%p\n"), ACE_TEXT ("client spawn")));
+      ++status;
+    }
+
+  // Wait for the threads to exit.
+  ACE_Thread_Manager::instance ()->wait ();
+#else
+  ACE_ERROR ((LM_INFO,
+              ACE_TEXT ("This test requires multiple threads ")
+              ACE_TEXT ("or processes.\n")));
+#endif /* ACE_HAS_THREADS */
+
+  if (read_side.remove () != 0)
+    {
+      ACE_ERROR ((LM_ERROR, ACE_TEXT ("%p\n"), ACE_TEXT ("fifo remove")));
+      ++status;
+    }
+
+  ACE_stat fifo_stat;
+  if (ACE_OS::stat (fifo_path, &fifo_stat) == 0)
+    {
+      ACE_ERROR ((LM_ERROR, ACE_TEXT ("FIFO %s should be gone but isn't\n"),
+                  fifo_path));
+      ++status;
+      ACE_OS::unlink (fifo_path);   // Try to get rid of it.
+    }
+
+  return status;
+}
+
+int
+run_main (int, ACE_TCHAR *[])
+{
+  ACE_START_TEST (ACE_TEXT ("FIFO_Test"));
+
+  int errors = 0;
+  errors += test_fifo_msg ();
+
+  ACE_END_TEST;
+  return errors;
+}
+
+#else
+
+int
+run_main (int, ACE_TCHAR *[])
+{
+  ACE_START_TEST (ACE_TEXT ("FIFO_Test"));
+
+  ACE_ERROR ((LM_INFO, ACE_TEXT ("FIFOs are not supported on this platform\n")));
+
+  ACE_END_TEST;
+  return 0;
+}
+
+#endif /* !ACE_LACKS_MKFIFO */