/*
   Copyright (c) 2005, 2011, 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
*/

#include <ndb_global.h>

#include <NdbHost.h>
#include <NdbSleep.h>
#include <NdbThread.h>
#include <NdbMain.h>
#include <NdbOut.hpp>
#include <NdbEnv.h>
#include <NdbTest.hpp>

#include "userInterface.h"
#include "dbGenerator.h"
#include "ndb_schema.hpp"


static int   numProcesses;
static int   numSeconds;
static int   numWarmSeconds;
static int   parallellism;
static int   millisSendPoll;
static int   minEventSendPoll;
static int   forceSendPoll;
static bool  useNdbRecord;
static bool  useCombUpd;

static ThreadData *data;
static Ndb_cluster_connection *g_cluster_connection= 0;


static void usage(const char *prog)
{
  const char  *progname;

   /*--------------------------------------------*/
   /* Get the name of the program (without path) */
   /*--------------------------------------------*/
   progname = strrchr(prog, '/');

   if (progname == 0)
     progname = prog;
   else
     ++progname;

   ndbout_c(
           "Usage: %s [-proc <num>] [-warm <num>] [-time <num>] [ -p <num>]" 
	   "[-t <num> ] [ -e <num> ] [ -f <num>] [ -ndbrecord ]\n"
           "  -proc <num>    Specifies that <num> is the number of\n"
           "                 threads. The default is 1.\n"
           "  -time <num>    Specifies that the test will run for <num> sec.\n"
           "                 The default is 10 sec\n"
           "  -warm <num>    Specifies the warm-up/cooldown period of <num> "
	   "sec.\n"
           "                 The default is 10 sec\n"
	   "  -p <num>       The no of parallell transactions started by "
	   "one thread\n"
	   "  -e <num>       Minimum no of events before wake up in call to "
	   "sendPoll\n"
	   "                 Default is 1\n"
	   "  -f <num>       force parameter to sendPoll\n"
	   "                 Default is 0\n"
           "  -ndbrecord     Use NdbRecord Api.\n"
           "                 Default is to use old Api\n"
           "  -combupdread   Use update pre-read operation where possible\n"
           "                 Default is to use separate read+update ops\n",
           progname);
}

static
int
parse_args(int argc, const char **argv)
{
   int i;

   numProcesses     = 1;
   numSeconds       = 10;
   numWarmSeconds   = 10;
   parallellism     = 1;
   millisSendPoll   = 10000;
   minEventSendPoll = 1;
   forceSendPoll    = 0;
   useNdbRecord     = false;
   useCombUpd       = false;

   i = 1;
   while (i < argc){
     if (strcmp("-proc",argv[i]) == 0) {
       if (i + 1 >= argc) {
	 return 1;
       }
       if (sscanf(argv[i+1], "%d", &numProcesses) == -1 ||
	   numProcesses <= 0 || numProcesses > 127) {
	 ndbout_c("-proc flag requires a positive integer argument [1..127]");
	 return 1;
       }
       i += 2;
     } else if (strcmp("-p", argv[i]) == 0){
       if(i + 1 >= argc){
	 usage(argv[0]);
	 return 1;
       }
       if (sscanf(argv[i+1], "%d", &parallellism) == -1 ||
	   parallellism <= 0){
	 ndbout_c("-p flag requires a positive integer argument");
	 return 1;
       }
       i += 2;
     }
     else if (strcmp("-time",argv[i]) == 0) {
       if (i + 1 >= argc) {
	 return 1;
       }
       if (sscanf(argv[i+1], "%d", &numSeconds) == -1 ||
	   numSeconds < 0) {
	 ndbout_c("-time flag requires a positive integer argument");
	 return 1;
       }
       i += 2;
     }
     else if (strcmp("-warm",argv[i]) == 0) {
       if (i + 1 >= argc) {
	 return 1;
       }
       if (sscanf(argv[i+1], "%d", &numWarmSeconds) == -1 ||
	   numWarmSeconds < 0) {
	 ndbout_c("-warm flag requires a positive integer argument");
	 return 1;
       }
       i += 2;
     }
     else if (strcmp("-e",argv[i]) == 0) {
       if (i + 1 >= argc) {
	 return 1;
       }
       if (sscanf(argv[i+1], "%d", &minEventSendPoll) == -1 ||
	   minEventSendPoll < 0) {
	 ndbout_c("-e flag requires a positive integer argument");
	 return 1;
       }
       i += 2;
     }
     else if (strcmp("-f",argv[i]) == 0) {
       if (i + 1 >= argc) {
	 usage(argv[0]);
	 return 1;
       }
       if (sscanf(argv[i+1], "%d", &forceSendPoll) == -1 ||
	   forceSendPoll < 0) {
	 ndbout_c("-f flag requires a positive integer argument");
	 return 1;
       }
       i += 2;
     }
     else if (strcmp("-ndbrecord",argv[i]) == 0) {
       useNdbRecord= true;
       i++;
     }
     else if (strcmp("-combupdread",argv[i]) == 0) {
       /* Comb up some dread */
       useCombUpd= true;
       i++;
     }
     else {
       return 1;
     }
   }

   if(minEventSendPoll > parallellism){
     ndbout_c("minEventSendPoll(%d) > parallellism(%d)",
	     minEventSendPoll, parallellism);
     ndbout_c("not very good...");
     ndbout_c("very bad...");
     ndbout_c("exiting...");
     return 1;
   }
   if (useNdbRecord && useCombUpd){
     ndbout_c("NdbRecord does not currently support combined update "
              "and read.  Using separate read and update ops");
   }
   return 0;
}

static 
void 
print_transaction(const char            *header,
		  unsigned long          totalCount,
		  TransactionDefinition *trans,
		  unsigned int           printBranch,
		  unsigned int           printRollback)
{
  double f;
  
  ndbout_c("  %s: %d (%.2f%%) "
	   "Latency(ms) avg: %d min: %d max: %d std: %d n: %d",
	   header,
	   trans->count,
	   (double)trans->count / (double)totalCount * 100.0,
	   (int)trans->latency.getMean(),
	   (int)trans->latency.getMin(),
	   (int)trans->latency.getMax(),
	   (int)trans->latency.getStddev(),
	   (int)trans->latency.getCount()
	   );
  
  if( printBranch ){
    if( trans->count == 0 )
      f = 0.0;
    else
      f = (double)trans->branchExecuted / (double)trans->count * 100.0;
    ndbout_c("      Branches Executed: %d (%.2f%%)", trans->branchExecuted, f);
  }
  
  if( printRollback ){
    if( trans->count == 0 )
      f = 0.0;
    else
      f = (double)trans->rollbackExecuted / (double)trans->count * 100.0;
    ndbout_c("      Rollback Executed: %d (%.2f%%)",trans->rollbackExecuted,f);
  }
}

void 
print_stats(const char       *title,
	    unsigned int      length,
	    unsigned int      transactionFlag,
	    GeneratorStatistics *gen,
	    int numProc, int parallellism)
{
  int    i;
  char buf[10];
  char name[MAXHOSTNAMELEN];
  
  name[0] = 0;
  NdbHost_GetHostName(name);
  
  ndbout_c("\n------ %s ------",title);
  ndbout_c("Length        : %d %s",
	 length,
	 transactionFlag ? "Transactions" : "sec");
  ndbout_c("Processor     : %s", name);
  ndbout_c("Number of Proc: %d",numProc);
  ndbout_c("Parallellism  : %d", parallellism);
  ndbout_c("UseNdbRecord  : %u", useNdbRecord);
  ndbout_c("\n");

  if( gen->totalTransactions == 0 ) {
    ndbout_c("   No Transactions for this test");
  }
  else {
    for(i = 0; i < 5; i++) {
      sprintf(buf, "T%d",i+1);
      print_transaction(buf,
			gen->totalTransactions,
			&gen->transactions[i],
			i >= 2,
			i >= 3 );
    }
    
    ndbout_c("\n");
    ndbout_c("  Overall Statistics:");
    ndbout_c("     Transactions: %d", gen->totalTransactions);
    ndbout_c("     Outer       : %.0f TPS",gen->outerTps);
    ndbout_c("\n");
    ndbout_c("NDBT_Observation;tps;%.0f", gen->outerTps);
  }
}

static 
void *
threadRoutine(void *arg)
{
  int i;
  ThreadData *data = (ThreadData *)arg;
  Ndb * pNDB;

  pNDB = asyncDbConnect(parallellism);		      
  /* NdbSleep_MilliSleep(rand() % 10); */

  for(i = 0; i<parallellism; i++){
    data[i].pNDB = pNDB;
  }
  millisSendPoll = 30000;
  asyncGenerator(data, parallellism,
		 millisSendPoll, minEventSendPoll, forceSendPoll);

  asyncDbDisconnect(pNDB);

  return NULL;
}

NDB_COMMAND(DbAsyncGenerator, "DbAsyncGenerator",
	    "DbAsyncGenerator", "DbAsyncGenerator", 65535)
{
  ndb_init();
  int i;
  int j;
  int k;
  struct NdbThread* pThread = NULL;
  GeneratorStatistics  stats;
  GeneratorStatistics *p;
  char threadName[32];
  int rc = NDBT_OK;
  void* tmp = NULL;
  if(parse_args(argc,argv) != 0){
    usage(argv[0]);
    return NDBT_ProgramExit(NDBT_WRONGARGS);
  }
    

  ndbout_c("\nStarting Test with %d process(es) for %d %s parallellism %d",
	   numProcesses,
	   numSeconds,
	   "sec",
	   parallellism);

  ndbout_c("   WarmUp/coolDown = %d sec", numWarmSeconds);

  Ndb_cluster_connection con;
  if(con.connect(12, 5, 1) != 0)
  {
    ndbout << "Unable to connect to management server." << endl;
    return 0;
  }
  if (con.wait_until_ready(30,0) < 0)
  {
    ndbout << "Cluster nodes not ready in 30 seconds." << endl;
    return 0;
  }

  NdbRecordSharedData* ndbRecordSharedDataPtr= NULL;

  g_cluster_connection= &con;
  data = (ThreadData*)malloc((numProcesses*parallellism)*sizeof(ThreadData));

  NdbInterpretedCode* prog1= 0;
  NdbInterpretedCode* prog2= 0;
  NdbInterpretedCode* prog3= 0;

  if (useNdbRecord)
  {
    /* We'll create NdbRecord structures to match the TransactionData
     * struct
     */

    ndbRecordSharedDataPtr= (NdbRecordSharedData*) 
      malloc(sizeof(NdbRecordSharedData));
    Ndb* tempNdb= asyncDbConnect(1);
    NdbDictionary::Dictionary* dict= tempNdb->getDictionary();

    NdbDictionary::RecordSpecification cols[7];
    
    const NdbDictionary::Table* tab= dict->getTable(SUBSCRIBER_TABLE);
    cols[0].column= tab->getColumn((int) IND_SUBSCRIBER_NUMBER);
    cols[0].offset= offsetof(TransactionData, number);
    cols[0].nullbit_byte_offset= 0;
    cols[0].nullbit_bit_in_byte=  0;
    cols[1].column= tab->getColumn((int) IND_SUBSCRIBER_NAME);
    cols[1].offset= offsetof(TransactionData, name);
    cols[1].nullbit_byte_offset= 0;
    cols[1].nullbit_bit_in_byte=  0;
    cols[2].column= tab->getColumn((int) IND_SUBSCRIBER_GROUP);
    cols[2].offset= offsetof(TransactionData, group_id);
    cols[2].nullbit_byte_offset= 0;
    cols[2].nullbit_bit_in_byte=  0;
    cols[3].column= tab->getColumn((int) IND_SUBSCRIBER_LOCATION);
    cols[3].offset= offsetof(TransactionData, location);
    cols[3].nullbit_byte_offset= 0;
    cols[3].nullbit_bit_in_byte=  0;
    cols[4].column= tab->getColumn((int) IND_SUBSCRIBER_SESSIONS);
    cols[4].offset= offsetof(TransactionData, sessions);
    cols[4].nullbit_byte_offset= 0;
    cols[4].nullbit_bit_in_byte=  0;
    cols[5].column= tab->getColumn((int) IND_SUBSCRIBER_CHANGED_BY);
    cols[5].offset= offsetof(TransactionData, changed_by);
    cols[5].nullbit_byte_offset= 0;
    cols[5].nullbit_bit_in_byte=  0;
    cols[6].column= tab->getColumn((int) IND_SUBSCRIBER_CHANGED_TIME);
    cols[6].offset= offsetof(TransactionData, changed_time);
    cols[6].nullbit_byte_offset= 0;
    cols[6].nullbit_bit_in_byte=  0;
    
    ndbRecordSharedDataPtr->subscriberTableNdbRecord= 
      dict->createRecord(tab, cols, 7, sizeof(cols[0]), 0);

    if (ndbRecordSharedDataPtr->subscriberTableNdbRecord == NULL)
    {
      ndbout << "Error creating record 1 : " << dict->getNdbError() << endl;
      return -1;
    }

    tab= dict->getTable(GROUP_TABLE);
    cols[0].column= tab->getColumn((int) IND_GROUP_ID);
    cols[0].offset= offsetof(TransactionData, group_id);
    cols[0].nullbit_byte_offset= 0;
    cols[0].nullbit_bit_in_byte=  0;
    /* GROUP_NAME not used via NdbRecord */
    cols[1].column= tab->getColumn((int) IND_GROUP_ALLOW_READ);
    cols[1].offset= offsetof(TransactionData, permission);
    cols[1].nullbit_byte_offset= 0;
    cols[1].nullbit_bit_in_byte=  0;

    ndbRecordSharedDataPtr->groupTableAllowReadNdbRecord=
      dict->createRecord(tab, cols, 2, sizeof(cols[0]), 0);

    if (ndbRecordSharedDataPtr->groupTableAllowReadNdbRecord == NULL)
    {
      ndbout << "Error creating record 2.1: " << dict->getNdbError() << endl;
      return -1;
    }

    cols[1].column= tab->getColumn((int) IND_GROUP_ALLOW_INSERT);
    cols[1].offset= offsetof(TransactionData, permission);
    cols[1].nullbit_byte_offset= 0;
    cols[1].nullbit_bit_in_byte=  0;

    ndbRecordSharedDataPtr->groupTableAllowInsertNdbRecord=
      dict->createRecord(tab, cols, 2, sizeof(cols[0]), 0);

    if (ndbRecordSharedDataPtr->groupTableAllowInsertNdbRecord == NULL)
    {
      ndbout << "Error creating record 2.2: " << dict->getNdbError() << endl;
      return -1;
    }

    cols[1].column= tab->getColumn((int) IND_GROUP_ALLOW_DELETE);
    cols[1].offset= offsetof(TransactionData, permission);
    cols[1].nullbit_byte_offset= 0;
    cols[1].nullbit_bit_in_byte=  0;

    ndbRecordSharedDataPtr->groupTableAllowDeleteNdbRecord=
      dict->createRecord(tab, cols, 2, sizeof(cols[0]), 0);

    if (ndbRecordSharedDataPtr->groupTableAllowDeleteNdbRecord == NULL)
    {
      ndbout << "Error creating record 2.3: " << dict->getNdbError() << endl;
      return -1;
    }

    tab= dict->getTable(SESSION_TABLE);
    cols[0].column= tab->getColumn((int) IND_SESSION_SUBSCRIBER);
    cols[0].offset= offsetof(TransactionData, number);
    cols[0].nullbit_byte_offset= 0;
    cols[0].nullbit_bit_in_byte=  0;
    cols[1].column= tab->getColumn((int) IND_SESSION_SERVER);
    cols[1].offset= offsetof(TransactionData, server_id);
    cols[1].nullbit_byte_offset= 0;
    cols[1].nullbit_bit_in_byte=  0;
    cols[2].column= tab->getColumn((int) IND_SESSION_DATA);
    cols[2].offset= offsetof(TransactionData, session_details);
    cols[2].nullbit_byte_offset= 0;
    cols[2].nullbit_bit_in_byte=  0;

    ndbRecordSharedDataPtr->sessionTableNdbRecord=
      dict->createRecord(tab, cols, 3, sizeof(cols[0]), 0);

    if (ndbRecordSharedDataPtr->sessionTableNdbRecord == NULL)
    {
      ndbout << "Error creating record 3 : " << dict->getNdbError() << endl;
      return -1;
    }

    tab= dict->getTable(SERVER_TABLE);
    cols[0].column= tab->getColumn((int) IND_SERVER_SUBSCRIBER_SUFFIX);
    cols[0].offset= offsetof(TransactionData, suffix);
    cols[0].nullbit_byte_offset= 0;
    cols[0].nullbit_bit_in_byte=  0;
    cols[1].column= tab->getColumn((int) IND_SERVER_ID);
    cols[1].offset= offsetof(TransactionData, server_id);
    cols[1].nullbit_byte_offset= 0;
    cols[1].nullbit_bit_in_byte=  0;
    /* SERVER_NAME not used via NdbRecord*/
    /* SERVER_READS not used via NdbRecord */
    /* SERVER_INSERTS not used via NdbRecord */
    /* SERVER_DELETES not used via NdbRecord */

    ndbRecordSharedDataPtr->serverTableNdbRecord=
      dict->createRecord(tab, cols, 2, sizeof(cols[0]), 0);

    if (ndbRecordSharedDataPtr->serverTableNdbRecord == NULL)
    {
      ndbout << "Error creating record 4 : " << dict->getNdbError() << endl;
      return -1;
    }

    /* Create program to increment server reads column */
    prog1= new NdbInterpretedCode(tab);

    if (prog1->add_val(IND_SERVER_READS, (Uint32)1) ||
        prog1->interpret_exit_ok() ||
        prog1->finalise())
    {
      ndbout << "Program 1 definition failed, exiting." << endl;
      return -1;
    }

    prog2= new NdbInterpretedCode(tab);

    if (prog2->add_val(IND_SERVER_INSERTS, (Uint32)1) ||
        prog2->interpret_exit_ok() ||
        prog2->finalise())
    {
      ndbout << "Program 2 definition failed, exiting." << endl;
      return -1;
    }

    prog3= new NdbInterpretedCode(tab);

    if (prog3->add_val(IND_SERVER_DELETES, (Uint32)1) ||
        prog3->interpret_exit_ok() ||
        prog3->finalise())
    {
      ndbout << "Program 3 definition failed, exiting." << endl;
      return -1;
    }

    ndbRecordSharedDataPtr->incrServerReadsProg= prog1;
    ndbRecordSharedDataPtr->incrServerInsertsProg= prog2;
    ndbRecordSharedDataPtr->incrServerDeletesProg= prog3;

    asyncDbDisconnect(tempNdb);      
  }

  for(i = 0; i < numProcesses; i++) {
    for(j = 0; j<parallellism; j++){
      int tid= i*parallellism + j;
      data[tid].warmUpSeconds         = numWarmSeconds;
      data[tid].testSeconds           = numSeconds;
      data[tid].coolDownSeconds       = numWarmSeconds;
      data[tid].randomSeed            = 
	(unsigned long)(NdbTick_CurrentMillisecond()+i+j);
      data[tid].changedTime           = 0;
      data[tid].runState              = Runnable;
      data[tid].ndbRecordSharedData   = ndbRecordSharedDataPtr;
      data[tid].useCombinedUpdate     = useCombUpd;
    }
    sprintf(threadName, "AsyncThread[%d]", i);
    pThread = NdbThread_Create(threadRoutine, 
			      (void**)&data[i*parallellism], 
			      65535, 
			      threadName,
                              NDB_THREAD_PRIO_LOW);
    if(pThread != 0 && pThread != NULL){
      (&data[i*parallellism])->pThread = pThread;
    } else {      
      perror("Failed to create thread");
      rc = NDBT_FAILED;
    }
  }

  showTime();

  /*--------------------------------*/
  /* Wait for all processes to exit */
  /*--------------------------------*/
  for(i = 0; i < numProcesses; i++) {
    NdbThread_WaitFor(data[i*parallellism].pThread, &tmp);
    NdbThread_Destroy(&data[i*parallellism].pThread);
  }
   
  ndbout_c("All threads have finished");

  if (useNdbRecord)
  {
    free(ndbRecordSharedDataPtr);
    delete(prog1);
    delete(prog2);
    delete(prog3);
  }
  
  /*-------------------------------------------*/
  /* Clear all structures for total statistics */
  /*-------------------------------------------*/
  stats.totalTransactions = 0;
  stats.outerTps          = 0.0;
  
  for(i = 0; i < NUM_TRANSACTION_TYPES; i++ ) {
    stats.transactions[i].count            = 0;
    stats.transactions[i].branchExecuted   = 0;
    stats.transactions[i].rollbackExecuted = 0;
    stats.transactions[i].latency.reset();
  }
  
  /*--------------------------------*/
  /* Add the values for all Threads */
  /*--------------------------------*/
  for(i = 0; i < numProcesses; i++) {
    for(k = 0; k<parallellism; k++){
      p = &data[i*parallellism+k].generator;
      
      stats.totalTransactions += p->totalTransactions;
      stats.outerTps          += p->outerTps;
      
      for(j = 0; j < NUM_TRANSACTION_TYPES; j++ ) {
	stats.transactions[j].count += 
	  p->transactions[j].count;
	stats.transactions[j].branchExecuted += 
	  p->transactions[j].branchExecuted;
	stats.transactions[j].rollbackExecuted += 
	  p->transactions[j].rollbackExecuted;
	stats.transactions[j].latency += 
	  p->transactions[j].latency;
      }
    }
  }

  print_stats("Test Results", 
	      numSeconds,
	      0,
	      &stats,
	      numProcesses,
	      parallellism);

  free(data);
  
  NDBT_ProgramExit(rc);
}
/***************************************************************
* I N C L U D E D   F I L E S                                  *
***************************************************************/

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <time.h>

#include "ndb_error.hpp"
#include "userInterface.h"
#include <NdbMutex.h>
#include <NdbThread.h>
#include <NdbTick.h>
#include <NdbApi.hpp>
#include <NdbOut.hpp>

/***************************************************************
* L O C A L   C O N S T A N T S                                *
***************************************************************/

/***************************************************************
* L O C A L   D A T A   S T R U C T U R E S                    *
***************************************************************/

/***************************************************************
* L O C A L   F U N C T I O N S                                *
***************************************************************/

#ifndef NDB_WIN32
#include <unistd.h>
#endif

Ndb*
asyncDbConnect(int parallellism){
  Ndb * pNDB = new Ndb(g_cluster_connection, "TEST_DB");
  
  pNDB->init(parallellism + 1);
  
  while(pNDB->waitUntilReady() != 0){
  }
  
  return pNDB;
}

void 
asyncDbDisconnect(Ndb* pNDB)
{
  delete pNDB;
}

double
userGetTime(void)
{
  static bool initialized = false;
  static NDB_TICKS initSecs = 0;
  static Uint32 initMicros = 0;
  double timeValue = 0;

  if ( !initialized ) {
    initialized = true;
    NdbTick_CurrentMicrosecond(&initSecs, &initMicros); 
    timeValue = 0.0;
  } else {
    NDB_TICKS secs = 0;
    Uint32 micros = 0;

    NdbTick_CurrentMicrosecond(&secs, &micros);
    double s  = (double)secs  - (double)initSecs;
    double us = (double)micros - (double)initMicros;
    
    timeValue = s + (us / 1000000.0);
  }
  return timeValue;
}

void showTime()
{
  char buf[128];
  struct tm* tm_now;
  time_t now;
  now = ::time((time_t*)NULL);
  tm_now = ::gmtime(&now);

  BaseString::snprintf(buf, 128,
	     "%d-%.2d-%.2d %.2d:%.2d:%.2d", 
	     tm_now->tm_year + 1900, 
	     tm_now->tm_mon, 
	     tm_now->tm_mday,
	     tm_now->tm_hour,
	     tm_now->tm_min,
	     tm_now->tm_sec);

  ndbout_c("Time: %s", buf);
}

