/*
   Copyright (c) 2003, 2016, Oracle and/or its affiliates. All rights reserved.

   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
*/

#define DBTC_C
#include "Dbtc.hpp"
#include <pc.hpp>
#include <ndb_limits.h>
#include <Properties.hpp>
#include <Configuration.hpp>

#define JAM_FILE_ID 349


#define DEBUG(x) { ndbout << "TC::" << x << endl; }


void Dbtc::initData() 
{
  capiConnectFilesize = ZAPI_CONNECT_FILESIZE;
  ccacheFilesize = ZAPI_CONNECT_FILESIZE;
  chostFilesize = MAX_NODES;
  cgcpFilesize = ZGCP_FILESIZE;
  cscanrecFileSize = ZSCANREC_FILE_SIZE;
  cscanFragrecFileSize = ZSCAN_FRAGREC_FILE_SIZE;
  ctabrecFilesize = ZTABREC_FILESIZE;
  ctcConnectFilesize = ZTC_CONNECT_FILESIZE;
  cdihblockref = DBDIH_REF;
  cdictblockref = DBDICT_REF;
  clqhblockref = DBLQH_REF;
  cerrorBlockref = NDBCNTR_REF;

  c_lqhkeyconf_direct_sent = 0;
 
  // Records with constant sizes
  tcFailRecord = (TcFailRecord*)allocRecord("TcFailRecord",
					    sizeof(TcFailRecord), 1);

  // Variables
  ctcTimer = 0;

  // Trigger and index pools
  c_theDefinedTriggerPool.setSize(c_maxNumberOfDefinedTriggers);
  c_theFiredTriggerPool.setSize(c_maxNumberOfFiredTriggers);
  c_theIndexPool.setSize(c_maxNumberOfIndexes);
  c_theIndexOperationPool.setSize(c_maxNumberOfIndexOperations);
  c_theAttributeBufferPool.setSize(c_transactionBufferSpace);
  c_firedTriggerHash.setSize((c_maxNumberOfFiredTriggers+10)/10);
}//Dbtc::initData()

void Dbtc::initRecords() 
{
  void *p;
  // Records with dynamic sizes
  cacheRecord = (CacheRecord*)allocRecord("CacheRecord",
					  sizeof(CacheRecord), 
					  ccacheFilesize);

  apiConnectRecord = (ApiConnectRecord*)allocRecord("ApiConnectRecord",
						    sizeof(ApiConnectRecord),
						    capiConnectFilesize);

  for(unsigned i = 0; i<capiConnectFilesize; i++) {
    p = &apiConnectRecord[i];
    new (p) ApiConnectRecord(c_theFiredTriggerPool, 
			     c_theIndexOperationPool);
  }
  // Init all fired triggers
  DLFifoList<TcFiredTriggerData> triggers(c_theFiredTriggerPool);
  FiredTriggerPtr tptr;
  while (triggers.seizeLast(tptr) == true) {
    p= tptr.p;
    new (p) TcFiredTriggerData();
  }
  while (triggers.releaseFirst());
  /*
    The code above temporarily allocates all TcFiredTriggerData records.
    Therefore we need to reset freeMin now, to get meaningful values.
  */
  c_theFiredTriggerPool.resetFreeMin();

  // Init all index records
  DLList<TcIndexData> indexes(c_theIndexPool);
  TcIndexDataPtr iptr;
  while(indexes.seizeFirst(iptr) == true) {
    p= iptr.p;
    new (p) TcIndexData();
  }
  while (indexes.releaseFirst());

  // Init all index operation records
  SLList<TcIndexOperation> indexOps(c_theIndexOperationPool);
  TcIndexOperationPtr ioptr;
  while (indexOps.seizeFirst(ioptr) == true) {
    p= ioptr.p;
    new (p) TcIndexOperation(); // TODO : Modify alloc size of c_theAttributeBufferPool
  }
  while (indexOps.releaseFirst());

  c_apiConTimer = (UintR*)allocRecord("ApiConTimer",
				      sizeof(UintR),
				      capiConnectFilesize);
  
  c_apiConTimer_line = (UintR*)allocRecord("ApiConTimer_line",
					   sizeof(UintR),
					   capiConnectFilesize);

  tcConnectRecord = (TcConnectRecord*)allocRecord("TcConnectRecord",
						  sizeof(TcConnectRecord),
						  ctcConnectFilesize);
  
  m_commitAckMarkerPool.setSize(2 * capiConnectFilesize);
  m_commitAckMarkerHash.setSize(1024);
  c_theCommitAckMarkerBufferPool.setSize(4 * capiConnectFilesize);

  hostRecord = (HostRecord*)allocRecord("HostRecord",
					sizeof(HostRecord),
					chostFilesize);

  tableRecord = (TableRecord*)allocRecord("TableRecord",
					  sizeof(TableRecord),
					  ctabrecFilesize);

  scanRecord = (ScanRecord*)allocRecord("ScanRecord",
					sizeof(ScanRecord),
					cscanrecFileSize);


  c_scan_frag_pool.setSize(cscanFragrecFileSize);
  {
    ScanFragRecPtr ptr;
    SLList<ScanFragRec> tmp(c_scan_frag_pool);
    while (tmp.seizeFirst(ptr)) {
      new (ptr.p) ScanFragRec();
    }
    while (tmp.releaseFirst());
  }

  while (indexOps.releaseFirst());
  
  gcpRecord = (GcpRecord*)allocRecord("GcpRecord",
				      sizeof(GcpRecord), 
				      cgcpFilesize);
  
}//Dbtc::initRecords()

bool
Dbtc::getParam(const char* name, Uint32* count)
{
  if (name != NULL && count != NULL)
  {
    /* FragmentInfoPool
     * We increase the size of the fragment info pool
     * to handle fragmented SCANTABREQ signals from 
     * the API
     */
    if (strcmp(name, "FragmentInfoPool") == 0)
    {
      /* Worst case is each API node sending a 
       * single fragmented request concurrently
       * This could change in future if APIs can
       * interleave fragments from different 
       * requests
       */
      *count= MAX_NODES + 10;
      return true;
    }
  }
  return false;
}

Dbtc::Dbtc(Block_context& ctx, Uint32 instanceNo):
  SimulatedBlock(DBTC, ctx, instanceNo),
  c_theDefinedTriggers(c_theDefinedTriggerPool),
  c_firedTriggerHash(c_theFiredTriggerPool),
  c_maxNumberOfDefinedTriggers(0),
  c_maxNumberOfFiredTriggers(0),
  c_theIndexes(c_theIndexPool),
  c_maxNumberOfIndexes(0),
  c_maxNumberOfIndexOperations(0),
  c_fk_hash(c_fk_pool),
  m_commitAckMarkerHash(m_commitAckMarkerPool)
{
  BLOCK_CONSTRUCTOR(Dbtc);
  
  const ndb_mgm_configuration_iterator * p = 
    ctx.m_config.getOwnConfigIterator();
  ndbrequire(p != 0);

  Uint32 transactionBufferMemory = 0;
  Uint32 maxNoOfIndexes = 0, maxNoOfConcurrentIndexOperations = 0;
  Uint32 maxNoOfTriggers = 0, maxNoOfFiredTriggers = 0;

  ndb_mgm_get_int_parameter(p, CFG_DB_TRANS_BUFFER_MEM,  
			    &transactionBufferMemory);
  ndb_mgm_get_int_parameter(p, CFG_DICT_TABLE,
			    &maxNoOfIndexes);
  ndb_mgm_get_int_parameter(p, CFG_DB_NO_INDEX_OPS, 
			    &maxNoOfConcurrentIndexOperations);
  ndb_mgm_get_int_parameter(p, CFG_DB_NO_TRIGGERS, 
			    &maxNoOfTriggers);
  ndb_mgm_get_int_parameter(p, CFG_DB_NO_TRIGGER_OPS, 
			    &maxNoOfFiredTriggers);
  
  c_transactionBufferSpace = 
    transactionBufferMemory / AttributeBuffer::getSegmentSize();
  c_maxNumberOfIndexes = maxNoOfIndexes;
  c_maxNumberOfIndexOperations = maxNoOfConcurrentIndexOperations;
  c_maxNumberOfDefinedTriggers = maxNoOfTriggers;
  c_maxNumberOfFiredTriggers = maxNoOfFiredTriggers;

  // Transit signals
  addRecSignal(GSN_PACKED_SIGNAL, &Dbtc::execPACKED_SIGNAL); 
  addRecSignal(GSN_ABORTED, &Dbtc::execABORTED);
  addRecSignal(GSN_ATTRINFO, &Dbtc::execATTRINFO);
  addRecSignal(GSN_CONTINUEB, &Dbtc::execCONTINUEB);
  addRecSignal(GSN_KEYINFO, &Dbtc::execKEYINFO);
  addRecSignal(GSN_SCAN_NEXTREQ, &Dbtc::execSCAN_NEXTREQ);
  addRecSignal(GSN_TAKE_OVERTCREQ, &Dbtc::execTAKE_OVERTCREQ);
  addRecSignal(GSN_TAKE_OVERTCCONF, &Dbtc::execTAKE_OVERTCCONF);
  addRecSignal(GSN_LQHKEYREF, &Dbtc::execLQHKEYREF);

  // Received signals

  addRecSignal(GSN_DUMP_STATE_ORD, &Dbtc::execDUMP_STATE_ORD);
  addRecSignal(GSN_DBINFO_SCANREQ, &Dbtc::execDBINFO_SCANREQ);
  addRecSignal(GSN_SEND_PACKED, &Dbtc::execSEND_PACKED, true);
  addRecSignal(GSN_SCAN_HBREP, &Dbtc::execSCAN_HBREP);
  addRecSignal(GSN_COMPLETED, &Dbtc::execCOMPLETED);
  addRecSignal(GSN_COMMITTED, &Dbtc::execCOMMITTED);
  addRecSignal(GSN_DIH_SCAN_GET_NODES_CONF, &Dbtc::execDIH_SCAN_GET_NODES_CONF);
  addRecSignal(GSN_DIH_SCAN_GET_NODES_REF, &Dbtc::execDIH_SCAN_GET_NODES_REF);
  addRecSignal(GSN_DIVERIFYCONF, &Dbtc::execDIVERIFYCONF);
  addRecSignal(GSN_DIH_SCAN_TAB_CONF, &Dbtc::execDIH_SCAN_TAB_CONF);
  addRecSignal(GSN_DIH_SCAN_TAB_REF, &Dbtc::execDIH_SCAN_TAB_REF);
  addRecSignal(GSN_GCP_NOMORETRANS, &Dbtc::execGCP_NOMORETRANS);
  addRecSignal(GSN_LQHKEYCONF, &Dbtc::execLQHKEYCONF);
  addRecSignal(GSN_NDB_STTOR, &Dbtc::execNDB_STTOR);
  addRecSignal(GSN_READ_NODESCONF, &Dbtc::execREAD_NODESCONF);
  addRecSignal(GSN_READ_NODESREF, &Dbtc::execREAD_NODESREF);
  addRecSignal(GSN_STTOR, &Dbtc::execSTTOR);
  addRecSignal(GSN_TC_COMMITREQ, &Dbtc::execTC_COMMITREQ);
  addRecSignal(GSN_TC_CLOPSIZEREQ, &Dbtc::execTC_CLOPSIZEREQ);
  addRecSignal(GSN_TCGETOPSIZEREQ, &Dbtc::execTCGETOPSIZEREQ);
  addRecSignal(GSN_TCKEYREQ, &Dbtc::execTCKEYREQ);
  addRecSignal(GSN_TCRELEASEREQ, &Dbtc::execTCRELEASEREQ);
  addRecSignal(GSN_TCSEIZEREQ, &Dbtc::execTCSEIZEREQ);
  addRecSignal(GSN_TCROLLBACKREQ, &Dbtc::execTCROLLBACKREQ);
  addRecSignal(GSN_TC_HBREP, &Dbtc::execTC_HBREP);
  addRecSignal(GSN_TC_SCHVERREQ, &Dbtc::execTC_SCHVERREQ);
  addRecSignal(GSN_TAB_COMMITREQ, &Dbtc::execTAB_COMMITREQ);
  addRecSignal(GSN_SCAN_TABREQ, &Dbtc::execSCAN_TABREQ);
  addRecSignal(GSN_SCAN_FRAGCONF, &Dbtc::execSCAN_FRAGCONF);
  addRecSignal(GSN_SCAN_FRAGREF, &Dbtc::execSCAN_FRAGREF);
  addRecSignal(GSN_READ_CONFIG_REQ, &Dbtc::execREAD_CONFIG_REQ, true);
  addRecSignal(GSN_LQH_TRANSCONF, &Dbtc::execLQH_TRANSCONF);
  addRecSignal(GSN_COMPLETECONF, &Dbtc::execCOMPLETECONF);
  addRecSignal(GSN_COMMITCONF, &Dbtc::execCOMMITCONF);
  addRecSignal(GSN_ABORTCONF, &Dbtc::execABORTCONF);
  addRecSignal(GSN_NODE_FAILREP, &Dbtc::execNODE_FAILREP);
  addRecSignal(GSN_INCL_NODEREQ, &Dbtc::execINCL_NODEREQ);
  addRecSignal(GSN_TIME_SIGNAL, &Dbtc::execTIME_SIGNAL);
  addRecSignal(GSN_API_FAILREQ, &Dbtc::execAPI_FAILREQ);

  addRecSignal(GSN_TC_COMMIT_ACK, &Dbtc::execTC_COMMIT_ACK);
  addRecSignal(GSN_ABORT_ALL_REQ, &Dbtc::execABORT_ALL_REQ);

  addRecSignal(GSN_CREATE_TRIG_IMPL_REQ, &Dbtc::execCREATE_TRIG_IMPL_REQ);
  addRecSignal(GSN_DROP_TRIG_IMPL_REQ, &Dbtc::execDROP_TRIG_IMPL_REQ);
  addRecSignal(GSN_FIRE_TRIG_ORD, &Dbtc::execFIRE_TRIG_ORD);
  addRecSignal(GSN_TRIG_ATTRINFO, &Dbtc::execTRIG_ATTRINFO);
  
  addRecSignal(GSN_CREATE_INDX_IMPL_REQ, &Dbtc::execCREATE_INDX_IMPL_REQ);
  addRecSignal(GSN_DROP_INDX_IMPL_REQ, &Dbtc::execDROP_INDX_IMPL_REQ);
  addRecSignal(GSN_TCINDXREQ, &Dbtc::execTCINDXREQ);
  addRecSignal(GSN_INDXKEYINFO, &Dbtc::execINDXKEYINFO);
  addRecSignal(GSN_INDXATTRINFO, &Dbtc::execINDXATTRINFO);
  addRecSignal(GSN_ALTER_INDX_IMPL_REQ, &Dbtc::execALTER_INDX_IMPL_REQ);

  addRecSignal(GSN_TRANSID_AI_R, &Dbtc::execTRANSID_AI_R);
  addRecSignal(GSN_KEYINFO20_R, &Dbtc::execKEYINFO20_R);
  addRecSignal(GSN_SIGNAL_DROPPED_REP, &Dbtc::execSIGNAL_DROPPED_REP, true);

  // Index table lookup
  addRecSignal(GSN_TCKEYCONF, &Dbtc::execTCKEYCONF);
  addRecSignal(GSN_TCKEYREF, &Dbtc::execTCKEYREF);
  addRecSignal(GSN_TRANSID_AI, &Dbtc::execTRANSID_AI);
  addRecSignal(GSN_TCROLLBACKREP, &Dbtc::execTCROLLBACKREP);
  
  //addRecSignal(GSN_CREATE_TAB_REQ, &Dbtc::execCREATE_TAB_REQ);
  addRecSignal(GSN_DROP_TAB_REQ, &Dbtc::execDROP_TAB_REQ);
  addRecSignal(GSN_PREP_DROP_TAB_REQ, &Dbtc::execPREP_DROP_TAB_REQ);
  
  addRecSignal(GSN_ALTER_TAB_REQ, &Dbtc::execALTER_TAB_REQ);
  addRecSignal(GSN_ROUTE_ORD, &Dbtc::execROUTE_ORD);
  addRecSignal(GSN_TCKEY_FAILREFCONF_R, &Dbtc::execTCKEY_FAILREFCONF_R);

  addRecSignal(GSN_FIRE_TRIG_REF, &Dbtc::execFIRE_TRIG_REF);
  addRecSignal(GSN_FIRE_TRIG_CONF, &Dbtc::execFIRE_TRIG_CONF);

  addRecSignal(GSN_CREATE_FK_IMPL_REQ, &Dbtc::execCREATE_FK_IMPL_REQ);
  addRecSignal(GSN_DROP_FK_IMPL_REQ, &Dbtc::execDROP_FK_IMPL_REQ);

  addRecSignal(GSN_SCAN_TABREF, &Dbtc::execSCAN_TABREF);
  addRecSignal(GSN_SCAN_TABCONF, &Dbtc::execSCAN_TABCONF);
  addRecSignal(GSN_KEYINFO20, &Dbtc::execKEYINFO20);

  cacheRecord = 0;
  apiConnectRecord = 0;
  tcConnectRecord = 0;
  hostRecord = 0;
  tableRecord = 0;
  scanRecord = 0;
  gcpRecord = 0;
  tcFailRecord = 0;
  c_apiConTimer = 0;
  c_apiConTimer_line = 0;
  cpackedListIndex = 0;
  c_ongoing_take_over_cnt = 0;

#ifdef VM_TRACE
  {
    void* tmp[] = { &apiConnectptr, 
		    &tcConnectptr,
		    &cachePtr,
		    &hostptr,
		    &timeOutptr,
		    &scanFragptr, 
                    &tcNodeFailptr }; 
    init_globals_list(tmp, sizeof(tmp)/sizeof(tmp[0]));
  }
#endif
  cacheRecord = 0;
  apiConnectRecord = 0;
  tcConnectRecord = 0;
  hostRecord = 0;
  tableRecord = 0;
  scanRecord = 0;
  gcpRecord = 0;
  tcFailRecord = 0;
  c_apiConTimer = 0;
  c_apiConTimer_line = 0;
  m_deferred_enabled = ~Uint32(0);
  m_max_writes_per_trans = ~Uint32(0);
}//Dbtc::Dbtc()

Dbtc::~Dbtc() 
{
  // Records with dynamic sizes
  deallocRecord((void **)&cacheRecord, "CacheRecord",
		sizeof(CacheRecord), 
		ccacheFilesize);
  
  deallocRecord((void **)&apiConnectRecord, "ApiConnectRecord",
		sizeof(ApiConnectRecord),
		capiConnectFilesize);
  
  deallocRecord((void **)&tcConnectRecord, "TcConnectRecord",
		sizeof(TcConnectRecord),
		ctcConnectFilesize);

  deallocRecord((void **)&hostRecord, "HostRecord",
		sizeof(HostRecord),
		chostFilesize);
  
  deallocRecord((void **)&tableRecord, "TableRecord",
		sizeof(TableRecord),
		ctabrecFilesize);
  
  deallocRecord((void **)&scanRecord, "ScanRecord",
		sizeof(ScanRecord),
		cscanrecFileSize);
    
  deallocRecord((void **)&gcpRecord, "GcpRecord",
		sizeof(GcpRecord), 
		cgcpFilesize);
  
  deallocRecord((void **)&tcFailRecord, "TcFailRecord",
		sizeof(TcFailRecord), 1);
  
  deallocRecord((void **)&c_apiConTimer, "ApiConTimer",
		sizeof(UintR),
		capiConnectFilesize);

  deallocRecord((void **)&c_apiConTimer_line, "ApiConTimer",
		sizeof(UintR),
		capiConnectFilesize);
}//Dbtc::~Dbtc()

BLOCK_FUNCTIONS(Dbtc)

