1 files changed, 140 insertions, 0 deletions
diff --git a/storage/ndb/src/mgmsrv/MgmtSrvrGeneralSignalHandling.cpp b/storage/ndb/src/mgmsrv/MgmtSrvrGeneralSignalHandling.cpp
new file mode 100644
index 00000000000..2126c9d358d
--- /dev/null
+++ b/storage/ndb/src/mgmsrv/MgmtSrvrGeneralSignalHandling.cpp
@@ -0,0 +1,140 @@
+/* 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 */
+
+//******************************************************************************
+// General signal handling methods
+// All implementations stolen from the Ndb class.
+// Some kind of reuse should be preferred.
+//******************************************************************************
+
+#include "MgmtSrvr.hpp"
+#include <NdbApiSignal.hpp>
+#include <NdbTick.h>
+
+
+NdbApiSignal*
+MgmtSrvr::getSignal()
+{
+  NdbApiSignal* tSignal;
+  tSignal = theSignalIdleList;
+  if (tSignal != NULL){
+    NdbApiSignal* tSignalNext = tSignal->next();
+    tSignal->next(NULL);
+    theSignalIdleList = tSignalNext;
+    return tSignal;
+  } else
+  {
+    tSignal = new NdbApiSignal(_ownReference);
+    if (tSignal != NULL)
+      tSignal->next(NULL);
+  }
+  return tSignal;
+}
+
+
+void
+MgmtSrvr::releaseSignal(NdbApiSignal* aSignal)
+{
+  aSignal->next(theSignalIdleList);
+  theSignalIdleList = aSignal;
+}
+
+
+void
+MgmtSrvr::freeSignal()
+{
+  NdbApiSignal* tSignal = theSignalIdleList;
+  theSignalIdleList = tSignal->next();
+  delete tSignal;
+}
+
+
+int
+MgmtSrvr::sendSignal(Uint16 aNodeId,
+		     WaitSignalType aWaitState,
+		     NdbApiSignal* aSignal,
+		     bool force)
+{
+  int tReturnCode;
+  theFacade->lock_mutex();
+  if(force){
+    tReturnCode = theFacade->sendSignalUnCond(aSignal, 
+								  aNodeId);
+  } else {
+    tReturnCode = theFacade->sendSignal(aSignal, 
+							    aNodeId);
+  }
+  releaseSignal(aSignal);
+  if (tReturnCode == -1) {
+    theFacade->unlock_mutex();
+    return -1;
+  }
+  theWaitState = aWaitState;
+  theFacade->unlock_mutex();
+  return 0;
+}
+
+
+int
+MgmtSrvr::sendRecSignal(Uint16 aNodeId,
+			WaitSignalType aWaitState,
+			NdbApiSignal* aSignal,
+			bool force,
+			int waitTime)
+{
+  int tReturnCode;
+  theFacade->lock_mutex();
+  if(force){
+    tReturnCode = theFacade->sendSignalUnCond(aSignal, aNodeId);
+  } else {
+    tReturnCode = theFacade->sendSignalUnCond(aSignal, aNodeId);
+  }
+  releaseSignal(aSignal);
+  if (tReturnCode == -1) {
+    theFacade->unlock_mutex();
+    return -1;
+  }
+  theWaitState = aWaitState;
+  return receiveOptimisedResponse(waitTime);
+}
+
+
+int	
+MgmtSrvr::receiveOptimisedResponse(int waitTime)
+{
+  int tResultCode;
+  theFacade->checkForceSend(_blockNumber);
+  NDB_TICKS maxTime = NdbTick_CurrentMillisecond() + waitTime;
+  
+  while (theWaitState != NO_WAIT && waitTime > 0) {
+    NdbCondition_WaitTimeout(theMgmtWaitForResponseCondPtr, 
+			     theFacade->theMutexPtr,
+			     waitTime);
+    if(theWaitState == NO_WAIT)
+      break;
+    waitTime = (maxTime - NdbTick_CurrentMillisecond());
+  }//while
+  
+  if(theWaitState == NO_WAIT) {
+    tResultCode = 0;
+  } else {
+    tResultCode = -1;
+  }
+  theFacade->unlock_mutex();
+  return tResultCode;
+}
+
+