#pragma once

#include <petscsys.h>

typedef struct _n_PetscFreeSpaceList *PetscFreeSpaceList;

struct _n_PetscFreeSpaceList {
  PetscFreeSpaceList more_space;
  PetscInt          *array;
  PetscInt          *array_head;
  PetscInt           total_array_size;
  PetscInt           local_used;
  PetscInt           local_remaining;
};

PetscErrorCode PetscFreeSpaceGet(PetscInt, PetscFreeSpaceList *);
PetscErrorCode PetscFreeSpaceContiguous(PetscFreeSpaceList *, PetscInt *);
PetscErrorCode PetscFreeSpaceContiguous_LU(PetscFreeSpaceList *, PetscInt *, PetscInt, PetscInt *, PetscInt *);
PetscErrorCode PetscFreeSpaceContiguous_Cholesky(PetscFreeSpaceList *, PetscInt *, PetscInt, PetscInt *, PetscInt *);
PetscErrorCode PetscFreeSpaceDestroy(PetscFreeSpaceList);