/*
   Copyright (C) 2003, 2005, 2006 MySQL AB
    All rights reserved. Use is subject to license terms.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License, version 2.0,
   as published by the Free Software Foundation.

   This program is also distributed with certain software (including
   but not limited to OpenSSL) that is licensed under separate terms,
   as designated in a particular file or component or in included license
   documentation.  The authors of MySQL hereby grant you an additional
   permission to link the program and your derivative works with the
   separately licensed software that they have included with MySQL.

   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, version 2.0, 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
*/

#include "MemoryChannel.hpp"
#include "NdbThread.h"
#include "NdbSleep.h"
#include "NdbOut.hpp"
#include "NdbMain.h"



MemoryChannel<int>* theMemoryChannel;


extern "C" void* runProducer(void*arg)
{
  // The producer will items into the MemoryChannel
  int count = *(int*)arg;
  int* p;
  int i = 0;
  while (i <= count)
    {
      p = new int(i);
      ndbout << "P: " << *p << endl;
      theMemoryChannel->writeChannel(p);
      if (i%5==0)
        NdbSleep_MilliSleep(i);
      i++;
    }
  return NULL;
}

extern "C" void* runConsumer(void* arg)
{
  // The producer will read items from MemoryChannel and print on screen
  int count = *(int*)arg;
  int* p;
  int i = 0;
  while (i < count)
    {
      p = theMemoryChannel->readChannel();
      ndbout << "C: " << *p << endl;
      i = *p;
      delete p;
      
    }
  return NULL;
}



class ArgStruct 
{
public:
  ArgStruct(int _items, int _no){
    items=_items; 
    no=_no;
  };
  int items;
  int no;
};

MemoryChannelMultipleWriter<ArgStruct>* theMemoryChannel2;

extern "C" void* runProducer2(void*arg)
{
  // The producer will items into the MemoryChannel
  ArgStruct* pArg = (ArgStruct*)arg;
  int count = pArg->items;
  ArgStruct* p;
  int i = 0;
  while (i < count)
    {
      p = new ArgStruct(i, pArg->no);
      ndbout << "P"<<pArg->no<<": " << i << endl;
      theMemoryChannel2->writeChannel(p);
      NdbSleep_MilliSleep(i);
      i++;
    }
  return NULL;
}

extern "C" void* runConsumer2(void* arg)
{
  // The producer will read items from MemoryChannel and print on screen
  ArgStruct* pArg = (ArgStruct*)arg;
  int count =  pArg->items * pArg->no;
  ArgStruct* p;
  int i = 0;
  while (i < count)
    {
      p = theMemoryChannel2->readChannel();
      ndbout << "C: "<< p->no << ", " << p->items << endl;
      i++;
      delete p;
    }
  ndbout << "Consumer2: " << count << " received" << endl;
  return NULL;
}




//#if defined MEMORYCHANNELTEST

//int main(int argc, char **argv)
NDB_COMMAND(mctest, "mctest", "mctest", "Test the memory channel used in Ndb", 32768)
{

  ndbout << "==== testing MemoryChannel ====" << endl;

  theMemoryChannel = new MemoryChannel<int>;
  theMemoryChannel2 = new MemoryChannelMultipleWriter<ArgStruct>;

  NdbThread* consumerThread;
  NdbThread* producerThread;

  NdbThread_SetConcurrencyLevel(2);

  int numItems = 100;
  producerThread = NdbThread_Create(runProducer, 
				    (void**)&numItems,
				    4096,
				    (char*)"producer");

  consumerThread = NdbThread_Create(runConsumer, 
				    (void**)&numItems,
				    4096,
				    (char*)"consumer");


  void *status;
  NdbThread_WaitFor(consumerThread, &status);
  NdbThread_WaitFor(producerThread, &status);

  ndbout << "==== testing MemoryChannelMultipleWriter ====" << endl;
#define NUM_THREADS2 5
  NdbThread_SetConcurrencyLevel(NUM_THREADS2+2);
  NdbThread* producerThreads[NUM_THREADS2];

  ArgStruct *pArg;
  for (int j = 0; j < NUM_THREADS2; j++)
    {
      char buf[25];
      sprintf((char*)&buf, "producer%d", j);
      pArg = new ArgStruct(numItems, j);
      producerThreads[j] = NdbThread_Create(runProducer2, 
				    (void**)pArg,
				    4096,
				    (char*)&buf);
    }

  pArg = new ArgStruct(numItems, NUM_THREADS2);
  consumerThread = NdbThread_Create(runConsumer2, 
				    (void**)pArg,
				    4096,
				    (char*)"consumer");


  NdbThread_WaitFor(consumerThread, &status);
  for (int j = 0; j < NUM_THREADS2; j++)
  {
    NdbThread_WaitFor(producerThreads[j], &status);
  }

				    
  return 0;

}

void ErrorReporter::handleError(ErrorCategory type, int messageID,
                                const char* problemData, const char* objRef,
				NdbShutdownType nst)
{

  ndbout << "ErrorReporter::handleError activated"  << endl;
  exit(1);
}

//#endif
