global.h

#ifndef _GLOBAL_H_
#define _GLOBAL_H_

#include <stdint.h>

#ifdef _MSC_VER
#include <winsock2.h>
/* gettimeofday.c */
int gettimeofday(struct timeval *, struct timezone *);
#else
#include <sys/time.h>
#endif
#include "raster.h"

#define REALLOC_INCREMENT 1024

#define NE 128
#define N 64
#define NW 32
#define W 16
#define SW 8
#define S 4
#define SE 2
#define E 1

#define SUBWATERSHED_NULL INT32_MIN
#define HIERARCHY_NULL -1

struct outlet_list
{
    int nalloc, n;
    int *row, *col;
    int *id;
    unsigned char *dir;
};

struct hierarchy
{
    int n;
    int *self, *up, *down;
};

#ifdef _MAIN_C_
#define GLOBAL
#else
#define GLOBAL extern
#endif

GLOBAL int dir_checks[3][3]
#ifdef _MAIN_C_
    = {
    {SE, S, SW},
    {E, 0, W},
    {NE, N, NW}
}
#endif
;

/* timeval_diff.c */
long long timeval_diff(struct timeval *, struct timeval *, struct timeval *);

/* outlet_list.c */
void init_outlet_list(struct outlet_list *);
void reset_outlet_list(struct outlet_list *);
void free_outlet_list(struct outlet_list *);
void add_outlet(struct outlet_list *, int, int, int, unsigned char);

/* outlets.c */
struct outlet_list *read_outlets(char *, char *, struct raster_map *);
int write_outlets(const char *, struct outlet_list *);

/* delineate.c */
void delineate(struct raster_map *, struct outlet_list *, int);

/* delineate_lessmem.c */
void delineate_lessmem(struct raster_map *, struct outlet_list *);

/* delineate_moremem.c */
void delineate_moremem(struct raster_map *, struct outlet_list *);

/* hierarchy.c */
struct hierarchy *analyze_hierarchy(struct raster_map *,
                                    struct outlet_list *);
int write_hierarchy(const char *, struct hierarchy *);

#endif