/* $Id: petsc.h,v 1.89 1996/01/23 18:40:41 bsmith Exp bsmith $ */
/*
   PETSc header file, included in all PETSc programs.
*/
#if !defined(__PETSC_PACKAGE)
#define __PETSC_PACKAGE

#define PETSC_VERSION_NUMBER "PETSc Version 2.0.Beta.11, Released Jan. 23, 1996."

#include <stdio.h>

/*
    This is deal with missing entries in the Gnu gcc include files 
  the Sun4 machines. It's ugly but then so is the Gnu compiler!
*/
#if defined(PARCH_sun4) && !defined(__cplusplus) && defined(_Gnu_)
extern int fprintf(FILE*,const char*,...);
extern int printf(const char*,...);
extern int fflush(FILE *);
extern int fclose(FILE *);
extern void fscanf(FILE *,char *,...);
#endif

/* MPI interface */
#include "mpi.h"
#include "mpiu.h"

#if defined(PETSC_COMPLEX)
/* work around for bug in alpha g++ compiler */
#if defined(PARCH_alpha) 
#define hypot(a,b) (double) sqrt((a)*(a)+(b)*(b)) 
#endif
#include <complex.h>
#define PETSCREAL(a) real(a)
#define Scalar       complex
#else
#define PETSCREAL(a) a
#define Scalar       double
#endif

extern void *(*PetscMalloc)(unsigned int,int,char*);
extern int  (*PetscFree)(void *,int,char*);
#define PetscMalloc(a)       (*PetscMalloc)(a,__LINE__,__FILE__)
#define PetscNew(A)          (A*) PetscMalloc(sizeof(A))
#define PetscFree(a)         (*PetscFree)(a,__LINE__,__FILE__)
extern int  PetscSetMalloc(void *(*)(unsigned int,int,char*),int (*)(void *,int,char*));

extern int  TrDump(FILE *);
extern int  TrGetMaximumAllocated(double*);
extern int  TrSpace( int *, int *);

extern void  PetscMemcpy(void *,void *,int);
extern void  PetscMemzero(void *,int);
extern int   PetscMemcmp(char*, char*, int);
extern int   PetscStrlen(char *);
extern int   PetscStrcmp(char *,char *);
extern int   PetscStrncmp(char *,char *,int );
extern void  PetscStrcpy(char *,char *);
extern void  PetscStrcat(char *,char *);
extern void  PetscStrncat(char *,char *,int);
extern void  PetscStrncpy(char *,char *,int);
extern char* PetscStrchr(char *,char);
extern char* PetscStrrchr(char *,char);
extern char* PetscStrstr(char*,char*);
extern char* PetscStrtok(char*,char*);
extern char* PetscStrrtok(char*,char*);

#define PetscMin(a,b)      ( ((a)<(b)) ? (a) : (b) )
#define PetscMax(a,b)      ( ((a)<(b)) ? (b) : (a) )
#define PetscAbsInt(a)     ( ((a)<0)   ? -(a) : (a) )

#define PETSC_NULL          0
typedef enum { PETSC_FALSE, PETSC_TRUE } PetscTruth;

#if defined(PETSC_COMPLEX)
#define PetscAbsScalar(a)     abs(a)
#else
#define PetscAbsScalar(a)     ( ((a)<0.0)   ? -(a) : (a) )
#endif

/*  Macros for error checking */
#if !defined(__DIR__)
#define __DIR__ 0
#endif

/*
     Error codes (incomplete)
*/
#define PETSC_ERR_MEM 55   /* unable to allocate requested memory */
#define PETSC_ERR_SUP 56   /* no support yet for this operation */
#define PETSC_ERR_ARG 57   /* bad input argument */
#define PETSC_ERR_OBJ 58   /* null or corrupt PETSc object */
#define PETSC_ERR_SIG 59   /* signal received */

#if defined(PETSC_DEBUG)
#define SETERRQ(n,s)     {return PetscError(__LINE__,__DIR__,__FILE__,n,s);}
#define SETERRA(n,s)     {int _ierr = PetscError(__LINE__,__DIR__,__FILE__,n,s);\
                          MPI_Abort(MPI_COMM_WORLD,_ierr);}
#define CHKERRQ(n)       {if (n) SETERRQ(n,(char *)0);}
#define CHKERRA(n)       {if (n) SETERRA(n,(char *)0);}
#define CHKPTRQ(p)       if (!p) SETERRQ(PETSC_ERR_MEM,(char*)0);
#define CHKPTRA(p)       if (!p) SETERRA(PETSC_ERR_MEM,(char*)0);
#else
#define SETERRQ(n,s)     {return PetscError(__LINE__,__DIR__,__FILE__,n,s);}
#define SETERRA(n,s)     {int _ierr = PetscError(__LINE__,__DIR__,__FILE__,n,s);\
                          MPI_Abort(MPI_COMM_WORLD,_ierr);}
#define CHKERRQ(n)       {if (n) SETERRQ(n,(char *)0);}
#define CHKERRA(n)       {if (n) SETERRA(n,(char *)0);}
#define CHKPTRQ(p)       if (!p) SETERRQ(PETSC_ERR_MEM,(char*)0);
#define CHKPTRA(p)       if (!p) SETERRA(PETSC_ERR_MEM,(char*)0);
#endif

#define PETSC_COOKIE         1211211
#define PETSC_DECIDE         -1
#define PETSC_DEFAULT        -2

#include "viewer.h"
#include "options.h"

extern double PetscGetTime();
extern double PetscGetFlops();
extern void PetscSleep(int);

extern int PetscInitialize(int*,char***,char*,char*,char*);
extern int PetscFinalize();

typedef struct _PetscObject* PetscObject;
extern int PetscObjectDestroy(PetscObject);
extern int PetscObjectExists(PetscObject,int*);
extern int PetscObjectGetComm(PetscObject,MPI_Comm *comm);
extern int PetscObjectGetCookie(PetscObject,int *cookie);
extern int PetscObjectGetType(PetscObject,int *type);
extern int PetscObjectSetName(PetscObject,char*);
extern int PetscObjectGetName(PetscObject,char**);
extern int PetscObjectInherit(PetscObject,void *, int (*)(void *,void **));
#define PetscObjectChild(a) (((PetscObject) (a))->child)

extern int PetscDefaultErrorHandler(int,char*,char*,int,char*,void*);
extern int PetscAbortErrorHandler(int,char*,char*,int,char*,void* );
extern int PetscAttachDebuggerErrorHandler(int,char*,char*,int,char*,void*); 
extern int PetscError(int,char*,char*,int,char*);
extern int PetscPushErrorHandler(int (*handler)(int,char*,char*,int,char*,void*),void*);
extern int PetscPopErrorHandler();

extern int PetscSetDebugger(char *,int,char *);
extern int PetscAttachDebugger();

extern int PetscDefaultSignalHandler(int,void*);
extern int PetscPushSignalHandler(int (*)(int,void *),void*);
extern int PetscPopSignalHandler();
#define FP_TRAP_OFF    0
#define FP_TRAP_ON     1
#define FP_TRAP_ALWAYS 2
extern int PetscSetFPTrap(int);

/*
   Definitions used for the Fortran interface:
   FORTRANCAPS:       Names are uppercase, no trailing underscore
   FORTRANUNDERSCORE: Names are lowercase, trailing underscore
 */    
#if defined(PARCH_cray) || defined(PARCH_NCUBE) || defined(PARCH_t3d)
#define FORTRANCAPS
#elif !defined(PARCH_rs6000) && !defined(PARCH_NeXT) && !defined(PARCH_hpux)
#define FORTRANUNDERSCORE
#endif

#include "phead.h"
#include "plog.h"

#endif