1 files changed, 143 insertions, 0 deletions
diff --git a/ACE/examples/APG/Streams/BasicTask.h b/ACE/examples/APG/Streams/BasicTask.h
new file mode 100644
index 00000000000..edebc397998
--- /dev/null
+++ b/ACE/examples/APG/Streams/BasicTask.h
@@ -0,0 +1,143 @@
+/* -*- C++ -*- */
+// $Id$
+
+#ifndef BASIC_TASK_H
+#define BASIC_TASK_H
+
+#include "ace/Task_T.h"
+#include "ace/ace_wchar.h"
+
+// Listing 100 code/ch18
+class BasicTask : public ACE_Task<ACE_MT_SYNCH>
+{
+public:
+  typedef ACE_Task<ACE_MT_SYNCH> inherited;
+
+  BasicTask () : inherited()
+  { }
+
+  virtual int open (void * = 0)
+  {
+    ACE_DEBUG ((LM_DEBUG,
+                ACE_TEXT ("BasicTask::open() starting ")
+                ACE_TEXT ("%d threads\n"),
+                this->desired_threads ()));
+
+    return this->activate (THR_NEW_LWP | THR_JOINABLE,
+                           this->desired_threads ());
+  }
+  // Listing 100
+
+  // Listing 101 code/ch18
+  int put (ACE_Message_Block *message,
+           ACE_Time_Value *timeout)
+  {
+    return this->putq (message, timeout);
+  }
+  // Listing 101
+
+  // Listing 1020 code/ch18
+  virtual int svc (void)
+  {
+    for (ACE_Message_Block *message = 0; ; )
+      {
+        ACE_DEBUG ((LM_DEBUG,
+                    ACE_TEXT ("BasicTask::svc() - ")
+                    ACE_TEXT ("waiting for work\n" )));
+
+        if (this->getq (message) == -1)
+          ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("%p\n"),
+                             ACE_TEXT ("getq")),
+                            -1);
+        // Listing 1020
+
+        // Listing 1021 code/ch18
+        if (message->msg_type () == ACE_Message_Block::MB_HANGUP)
+          {
+            if (this->putq (message) == -1)
+              {
+                ACE_ERROR ((LM_ERROR,
+                            ACE_TEXT ("%p\n"),
+                            ACE_TEXT ("Task::svc() putq")));
+                message->release ();
+              }
+            break;
+          }
+        // Listing 1021
+
+        // Listing 1022 code/ch18
+        Message *recordedMessage =
+          (Message *)message->rd_ptr ();
+
+        if (this->process (recordedMessage) == -1)
+          {
+            message->release ();
+            ACE_ERROR_RETURN ((LM_ERROR,
+                               ACE_TEXT ("%p\n"),
+                               ACE_TEXT ("process")),
+                              -1);
+          }
+        // Listing 1022
+
+        // Listing 1023 code/ch18
+        ACE_DEBUG ((LM_DEBUG,
+                    ACE_TEXT ("BasicTask::svc() - ")
+                    ACE_TEXT ("Continue to next stage\n" )));
+        if (this->next_step (message) < 0)
+          {
+            ACE_ERROR ((LM_ERROR,
+                        ACE_TEXT ("%p\n"),
+                        ACE_TEXT ("put_next failed")));
+            message->release ();
+            break;
+          }
+        // Listing 1023
+      }
+
+    return 0;
+  }
+
+  // Listing 103 code/ch18
+  virtual int close (u_long flags)
+  {
+    int rval = 0;
+
+    if (flags == 1)
+      {
+        ACE_Message_Block *hangup = new ACE_Message_Block ();
+        hangup->msg_type (ACE_Message_Block::MB_HANGUP);
+        if (this->putq (hangup) == -1)
+          {
+            hangup->release ();
+            ACE_ERROR_RETURN ((LM_ERROR,
+                               ACE_TEXT ("%p\n"),
+                               ACE_TEXT ("Task::close() putq")),
+                              -1);
+          }
+
+        rval = this->wait ();
+      }
+
+    return rval;
+  }
+  // Listing 103
+
+  // Listing 105 code/ch18
+protected:
+  virtual int next_step (ACE_Message_Block *message_block)
+  {
+    return this->put_next (message_block);
+  }
+  // Listing 105
+
+  // Listing 104 code/ch18
+  virtual int process (Message *message) = 0;
+
+  virtual int desired_threads (void)
+  {
+    return 1;
+  }
+};
+// Listing 104
+
+#endif /* BASIC_TASK_H */