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/* This file is part of Cloudy and is copyright (C)1978-2008 by Gary J. Ferland and
 * others.  For conditions of distribution and use see copyright notice in license.txt */
/*cdInit routine to initialize variables, called at start of calculation */
/*cdExit exit handler to terminate calculation, called at end of calculation */
/* unset EXTERN so that everything is defined here */
#define EXTERN 
#include "cddefines.h"

/* used for punching map*/
FILE *ioMAP = NULL;

/* external ZeroNum used to div by zero 
 * ok here since never changed*/
const double ZeroNum = 0.;

/* this must go here since it defines NTA needed for other lines*/
#include "taulines.h"

/* following is true extern in taulines.h */
long nWindLine = NWINDDIM;

/* set number of CO rotation levels to default, 20 as set in taulines.h */
long int nCORotate = NCOROTATE;

/* say that space not allocated yet */
bool lgCORotateMalloc = false;

#include "abund.h"
#include "atmdat.h"
#include "atoms.h"
#include "atomfeii.h"
#include "assertresults.h"
#include "broke.h"
#include "ca.h"
#include "called.h"
#include "carb.h"
#include "cddrive.h"
/* this will be set true when cdInit is called.  The definition is in cdInit.
* Other routines will check that this is true when they are called, 
* to verify that cdInit was called first */
bool lgcdInitCalled=false;
#include "colden.h"
#include "conv.h"
#include "continuum.h"
#include "coolheavy.h"
#include "dense.h"
#include "doppvel.h"
#include "dynamics.h"
#include "elementnames.h"
#include "embesq.h"
#include "extinc.h"
#include "fe.h"
#include "fudgec.h"
#include "geometry.h"
#include "grainvar.h"
#include "grid.h"
#include "h2.h"
#include "h2_priv.h"
bool lgH2_READ_DATA = false;
#include "he.h"
#include "heavy.h"
#include "hextra.h"
#include "hmi.h"
#include "hydrogenic.h"
/* this is set true once space malloced, then never change
* number of levels again with hydrogenic command, 
* also to make sure MALLOC only happens one time  */
bool lgHydroMalloc = false;
/*  */
#include "hyperfine.h"
#include "input.h"
#include "ionbal.h"
#include "iso.h"
#include "iterations.h"
#include "lines.h"
/* these are the definitions of the line save arrays in lines.h */
LinSv *LineSv=NULL;
#include "magnetic.h"
#include "hcmap.h"
#include "mean.h"
#include "mewecoef.h"
#include "mole.h" 
#include "nitro.h"
#include "noexec.h"
#include "numderiv.h"
#include "oxy.h"
#include "parse.h"
#include "peimbt.h"
#include "phycon.h"
#include "plot.h"
#include "sil.h"
#include "version.h"
/* this is set true when space is allocated for the FeII arrays,
* once this happens FeII.nFeIILevel cannot be changed with the atom feii levels command */
bool lgFeIIMalloc=false;
/* */
#include "pressure.h"
#include "prt.h"
#include "punch.h"
#include "radius.h"
#include "rfield.h"
/* set true when malloced, init to false */
bool lgRfieldMalloced=false;
#include "opacity.h"
bool lgOpacMalloced=false;
#include "rt.h"
#include "secondaries.h"
#include "state.h"
#include "stopcalc.h"
#include "struc.h"
#include "thermal.h"
#include "timesc.h"
#include "trace.h"
#include "warnings.h"
#include "wind.h"
#include "init.h"
/* include MPI header if MPI_ENABLED true 
 * This flag indicates whether we are multi-processing.
 * if this is true then all output happens at the end,
 * if false then each set of results is printed and flushed when it happens.
 * must be set true on parallel machines, false on serial */
#ifdef MPI_ENABLED
#       include <mpi.h>
#endif

/* flag set true when cdMPI called, tells exit handler to clean up MPI */
/* lint error saying never used for anything is fine -- 
 * only is used if MPI flags are set, this is so that we do not call 
 * MPI_Finalize when on serial queue on parallel machine */
static bool lgMPI=false;

/*cdMPI sets flag telling exit handler to call MPI_Finalize, must
 * call after cdInit when MPI is used */
void cdMPI(void) /* set flag so that exit handler will clean up MPI */
{
        lgMPI = true;
        return;
}

/* =================================================================== */
void cdInit(void)
{
        long i;
        double vtest;

        DEBUG_ENTRY( "cdInit()" );

        /* set ioQQQ to standard output */
        ioQQQ = stdout;

        /* set ioStdin to standard input, will get line images from here */
        ioStdin = stdin;

        /* set ioPrnErr to stderr */
        ioPrnErr = stderr;

        /* but don't want to usually print to stderr */
        lgPrnErr = false;

        /* set flag saying that cdInit has been called */
        lgcdInitCalled = true;

        /*test if the following integer types have the correct width*/
        if( sizeof(int16) != 2 || sizeof(uint16) != 2 || sizeof(int32) != 4 || sizeof(uint32) != 4 )
                TotalInsanity();

        /*********************************************************
         *  on a VAX compile with /G_FLOATING option on FORTRAN; *
         *  following makes sure this happened.                  *
         *********************************************************/
        vtest = 1e-35;
        vtest /= 1e35;
        if( vtest == 0. )
        {
                fprintf( ioQQQ, " Something is wrong with the double precision.  Use /g_floating on a VAX\n" );
        }

        /* initialize some variables dealing with cloudy's interaction with machine environment */
        /* if TALK is true then do standard printout
         * if false then never say anything */
        called.lgTalk = true;
        /* this flag is needed to turn print on to have effect */
        called.lgTalkIsOK = true;
        /* means talk not forced off by call to cdTalk*/
        called.lgTalkForcedOff = false;

        optimize.lgNoVary = false;
        optimize.lgVaryOn = false;
        optimize.lgOptimr = false;
        grid.lgGrid = false;
        grid.nGridCommands = 0;

        for( i=0; i<NUM_OUTPUT_TYPES; i++ )
        {
                grid.lgOutputTypeOn[i] = false;
        }

        for( i=0; i<LIMPAR; i++ )
        {
                grid.numParamValues[i] = 0;
        }

        /* this is a global variable in assertresults.h, and can be checked by
         * other routines to see if asserts are ok - (most calculations will not use asserts,
         * and this will be the only place values are set, although they will be checked in maincl) */
        lgAssertsOK = true;
        lgBigBotch = false;
        lgPrtSciNot = false;

        /* number of lines entered with cdLine
         * both check that number less than NKRD, the limit
         * the line save array is defined from 0 through input.nSave */
        input.nSave = -1;

        /* nRead is the number of the command in the input stream - many optimize options
         * point to it to refer to the original command.  it is incremented before
         * it is used, so will become 0.  it is the array element within the stack
         * of emission lines */
        input.nRead = -1;

        /* this is number of init lines read in */
        input.nSaveIni = 0;
        input.lgUnderscoreFound = false;
        input.lgBracketFound = false;

        /* this is sanity check that lines are read in ok */
        for( i=0; i < NKRD; i++ )
        {
                strcpy( input.chCardSav[i], "error! - no line image input" );
        }

        /* start the timer to log execution time */
        cdSetExecTime();

        /* zero out lots of variables */
        zero();
        return;
}


/* =================================================================== */
/*cdExit the routine that should be called to exit cloudy */
NORETURN void cdExit(
        /* EXIT_FAILURE for failure, EXIT_SUCCESS for success */
        int iexit)
{
        enum {DEBUG_LOC=false};
        if( DEBUG_LOC )
                fprintf(ioQQQ," cdExit called\n");

        /* if doing an MPI run, just throw an exception
         * so that cddrive can report the problem and continue
         * computing other grid points */
        if( lgMPI )
        {
                throw bad_mpi(-1);
        }
        else
        {
                /* close any open units */
                ClosePunchFiles( true );
                exit( iexit );
        }
}

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