1 files changed, 123 insertions, 0 deletions
diff --git a/ndb/src/newtonapi/dba_process.cpp b/ndb/src/newtonapi/dba_process.cpp
new file mode 100644
index 00000000000..ddb6e62f180
--- /dev/null
+++ b/ndb/src/newtonapi/dba_process.cpp
@@ -0,0 +1,123 @@
+/* Copyright (C) 2003 MySQL AB
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+
+#include "dba_process.hpp"
+
+NewtonBatchProcess::NewtonBatchProcess(Ndb & ndb, NdbMutex & mutex) : 
+  theNdb(ndb),
+  theMutex(mutex)
+{
+  theThread = 0;
+  startStopMutex = NdbMutex_Create();
+
+  _running = false;
+  _stop = false;
+} 
+
+NewtonBatchProcess::~NewtonBatchProcess(){
+  doStop(true);
+
+  if(theThread != 0)
+    NdbThread_Destroy(&theThread);
+  
+  if(startStopMutex != 0)
+    NdbMutex_Destroy(startStopMutex);
+  startStopMutex = 0;
+}
+
+extern "C" 
+void* 
+runNDB_C(void * _nbp){
+  NewtonBatchProcess * nbp = (NewtonBatchProcess*)_nbp;
+  nbp->_running = true;
+  nbp->run();  
+  nbp->_running = false;
+  
+  /** 
+   *  This sleep is to make sure that the transporter 
+   *  send thread will come in and send any
+   *  signal buffers that this thread may have allocated.
+   *  If that doesn't happen an error will occur in OSE
+   *  when trying to restore a signal buffer allocated by a thread
+   *  that have been killed.
+   */
+  NdbSleep_MilliSleep(50);
+  NdbThread_Exit(0);
+  return 0;
+}
+
+void
+NewtonBatchProcess::doStart(){
+  NdbMutex_Lock(startStopMutex);
+  if(_running && !_stop){
+    NdbMutex_Unlock(startStopMutex);
+    return ;
+  }
+  
+  while(_running){
+    NdbMutex_Unlock(startStopMutex);
+    NdbSleep_MilliSleep(200);
+    NdbMutex_Lock(startStopMutex);
+  }
+  
+  require(!_running);
+  _stop = false;
+  
+  if(theThread != 0)
+    NdbThread_Destroy(&theThread);
+  
+  theThread = NdbThread_Create(runNDB_C,
+			       (void**)this,
+			       65535,
+			       "Newton_BP",
+			       NDB_THREAD_PRIO_LOWEST);
+  
+  NdbMutex_Unlock(startStopMutex);
+}
+
+void
+NewtonBatchProcess::doStop(bool wait){
+  NdbMutex_Lock(startStopMutex);
+  _stop = true;
+
+  if(wait){
+    while(_running){
+      NdbSleep_MilliSleep(200);
+    }
+  }
+  NdbMutex_Unlock(startStopMutex);
+}
+
+bool
+NewtonBatchProcess::isRunning() const {
+  return _running;
+}
+
+bool
+NewtonBatchProcess::isStopping() const {
+  return _stop;
+}
+
+void
+NewtonBatchProcess::run(){
+  while(!_stop){
+    NdbMutex_Lock(&theMutex);
+    theNdb.sendPollNdb(0, 1, DBA__NBP_Force);
+    NdbMutex_Unlock(&theMutex);
+    NdbSleep_MilliSleep(DBA__NBP_Intervall);
+  }
+}