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meos.h
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meos.h
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/*****************************************************************************
*
* This MobilityDB code is provided under The PostgreSQL License.
* Copyright (c) 2016-2024, Université libre de Bruxelles and MobilityDB
* contributors
*
* MobilityDB includes portions of PostGIS version 3 source code released
* under the GNU General Public License (GPLv2 or later).
* Copyright (c) 2001-2024, PostGIS contributors
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose, without fee, and without a written
* agreement is hereby granted, provided that the above copyright notice and
* this paragraph and the following two paragraphs appear in all copies.
*
* IN NO EVENT SHALL UNIVERSITE LIBRE DE BRUXELLES BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
* LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION,
* EVEN IF UNIVERSITE LIBRE DE BRUXELLES HAS BEEN ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* UNIVERSITE LIBRE DE BRUXELLES SPECIFICALLY DISCLAIMS ANY WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON
* AN "AS IS" BASIS, AND UNIVERSITE LIBRE DE BRUXELLES HAS NO OBLIGATIONS TO
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*
*****************************************************************************/
/**
* @brief API of the Mobility Engine Open Source (MEOS) library.
*/
#ifndef __MEOS_H__
#define __MEOS_H__
/* C */
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
/* PostgreSQL */
#ifndef POSTGRES_H
#define POSTGRES_H
#define DatumGetPointer(X) ((Pointer) (X))
typedef char *Pointer;
typedef uintptr_t Datum;
typedef signed char int8;
typedef signed short int16;
typedef signed int int32;
typedef long int int64;
typedef unsigned char uint8;
typedef unsigned short uint16;
typedef unsigned int uint32;
typedef unsigned long int uint64;
typedef int32 DateADT;
typedef int64 TimeADT;
typedef int64 Timestamp;
typedef int64 TimestampTz;
typedef int64 TimeOffset;
typedef int32 fsec_t; /* fractional seconds (in microseconds) */
typedef struct
{
TimeOffset time; /* all time units other than days, months and years */
int32 day; /* days, after time for alignment */
int32 month; /* months and years, after time for alignment */
} Interval;
typedef struct varlena
{
char vl_len_[4]; /* Do not touch this field directly! */
char vl_dat[]; /* Data content is here */
} varlena;
typedef varlena text;
typedef struct varlena bytea;
#endif /* POSTGRES_H */
/* PostGIS */
#ifndef _LIBLWGEOM_H
#define _LIBLWGEOM_H
/******************************************************************/
/**
* Macros for manipulating the 'flags' byte. A uint8_t used as follows:
* VVSRGBMZ
* Version bit, followed by
* Validty, Solid, ReadOnly, Geodetic, HasBBox, HasM and HasZ flags.
*/
#define LWFLAG_Z 0x01
#define LWFLAG_M 0x02
#define LWFLAG_BBOX 0x04
#define LWFLAG_GEODETIC 0x08
#define LWFLAG_READONLY 0x10
#define LWFLAG_SOLID 0x20
#define FLAGS_GET_Z(flags) ((flags) & LWFLAG_Z)
#define FLAGS_GET_M(flags) (((flags) & LWFLAG_M)>>1)
#define FLAGS_GET_BBOX(flags) (((flags) & LWFLAG_BBOX)>>2)
#define FLAGS_GET_GEODETIC(flags) (((flags) & LWFLAG_GEODETIC)>>3)
#define FLAGS_GET_READONLY(flags) (((flags) & LWFLAG_READONLY)>>4)
#define FLAGS_GET_SOLID(flags) (((flags) & LWFLAG_SOLID)>>5)
#define FLAGS_SET_Z(flags, value) ((flags) = (value) ? ((flags) | LWFLAG_Z) : ((flags) & ~LWFLAG_Z))
#define FLAGS_SET_M(flags, value) ((flags) = (value) ? ((flags) | LWFLAG_M) : ((flags) & ~LWFLAG_M))
#define FLAGS_SET_BBOX(flags, value) ((flags) = (value) ? ((flags) | LWFLAG_BBOX) : ((flags) & ~LWFLAG_BBOX))
#define FLAGS_SET_GEODETIC(flags, value) ((flags) = (value) ? ((flags) | LWFLAG_GEODETIC) : ((flags) & ~LWFLAG_GEODETIC))
#define FLAGS_SET_READONLY(flags, value) ((flags) = (value) ? ((flags) | LWFLAG_READONLY) : ((flags) & ~LWFLAG_READONLY))
#define FLAGS_SET_SOLID(flags, value) ((flags) = (value) ? ((flags) | LWFLAG_SOLID) : ((flags) & ~LWFLAG_SOLID))
#define FLAGS_NDIMS(flags) (2 + FLAGS_GET_Z(flags) + FLAGS_GET_M(flags))
#define FLAGS_GET_ZM(flags) (FLAGS_GET_M(flags) + FLAGS_GET_Z(flags) * 2)
#define FLAGS_NDIMS_BOX(flags) (FLAGS_GET_GEODETIC(flags) ? 3 : FLAGS_NDIMS(flags))
/*
** Variants available for WKB and WKT output types
*/
#define WKB_ISO 0x01
#define WKB_SFSQL 0x02
#define WKB_EXTENDED 0x04
#define WKB_NDR 0x08
#define WKB_XDR 0x10
#define WKB_HEX 0x20
#define WKB_NO_NPOINTS 0x40 /* Internal use only */
#define WKB_NO_SRID 0x80 /* Internal use only */
#define WKT_ISO 0x01
#define WKT_SFSQL 0x02
#define WKT_EXTENDED 0x04
typedef uint16_t lwflags_t;
/******************************************************************/
typedef struct {
double afac, bfac, cfac, dfac, efac, ffac, gfac, hfac, ifac, xoff, yoff, zoff;
} AFFINE;
/******************************************************************/
typedef struct
{
double xmin, ymin, zmin;
double xmax, ymax, zmax;
int32_t srid;
}
BOX3D;
/******************************************************************
* GBOX structure.
* We include the flags (information about dimensionality),
* so we don't have to constantly pass them
* into functions that use the GBOX.
*/
typedef struct
{
lwflags_t flags;
double xmin;
double xmax;
double ymin;
double ymax;
double zmin;
double zmax;
double mmin;
double mmax;
} GBOX;
/******************************************************************
* SPHEROID
*
* Standard definition of an ellipsoid (what wkt calls a spheroid)
* f = (a-b)/a
* e_sq = (a*a - b*b)/(a*a)
* b = a - fa
*/
typedef struct
{
double a; /* semimajor axis */
double b; /* semiminor axis b = (a - fa) */
double f; /* flattening f = (a-b)/a */
double e; /* eccentricity (first) */
double e_sq; /* eccentricity squared (first) e_sq = (a*a-b*b)/(a*a) */
double radius; /* spherical average radius = (2*a+b)/3 */
char name[20]; /* name of ellipse */
}
SPHEROID;
/******************************************************************
* POINT2D, POINT3D, POINT3DM, POINT4D
*/
typedef struct
{
double x, y;
}
POINT2D;
typedef struct
{
double x, y, z;
}
POINT3DZ;
typedef struct
{
double x, y, z;
}
POINT3D;
typedef struct
{
double x, y, m;
}
POINT3DM;
typedef struct
{
double x, y, z, m;
}
POINT4D;
/******************************************************************
* POINTARRAY
* Point array abstracts a lot of the complexity of points and point lists.
* It handles 2d/3d translation
* (2d points converted to 3d will have z=0 or NaN)
* DO NOT MIX 2D and 3D POINTS! EVERYTHING* is either one or the other
*/
typedef struct
{
uint32_t npoints; /* how many points we are currently storing */
uint32_t maxpoints; /* how many points we have space for in serialized_pointlist */
/* Use FLAGS_* macros to handle */
lwflags_t flags;
/* Array of POINT 2D, 3D or 4D, possibly misaligned. */
uint8_t *serialized_pointlist;
}
POINTARRAY;
/******************************************************************
* GSERIALIZED
*/
typedef struct
{
uint32_t size; /* For PgSQL use only, use VAR* macros to manipulate. */
uint8_t srid[3]; /* 24 bits of SRID */
uint8_t gflags; /* HasZ, HasM, HasBBox, IsGeodetic */
uint8_t data[1]; /* See gserialized.txt */
} GSERIALIZED;
/******************************************************************
* LWGEOM (any geometry type)
*
* Abstract type, note that 'type', 'bbox' and 'srid' are available in
* all geometry variants.
*/
typedef struct
{
GBOX *bbox;
void *data;
int32_t srid;
lwflags_t flags;
uint8_t type;
char pad[1]; /* Padding to 24 bytes (unused) */
}
LWGEOM;
/* POINTYPE */
typedef struct
{
GBOX *bbox;
POINTARRAY *point; /* hide 2d/3d (this will be an array of 1 point) */
int32_t srid;
lwflags_t flags;
uint8_t type; /* POINTTYPE */
char pad[1]; /* Padding to 24 bytes (unused) */
}
LWPOINT; /* "light-weight point" */
/* LINETYPE */
typedef struct
{
GBOX *bbox;
POINTARRAY *points; /* array of POINT3D */
int32_t srid;
lwflags_t flags;
uint8_t type; /* LINETYPE */
char pad[1]; /* Padding to 24 bytes (unused) */
}
LWLINE; /* "light-weight line" */
/* TRIANGLE */
typedef struct
{
GBOX *bbox;
POINTARRAY *points;
int32_t srid;
lwflags_t flags;
uint8_t type;
char pad[1]; /* Padding to 24 bytes (unused) */
}
LWTRIANGLE;
/* CIRCSTRINGTYPE */
typedef struct
{
GBOX *bbox;
POINTARRAY *points; /* array of POINT(3D/3DM) */
int32_t srid;
lwflags_t flags;
uint8_t type; /* CIRCSTRINGTYPE */
char pad[1]; /* Padding to 24 bytes (unused) */
}
LWCIRCSTRING; /* "light-weight circularstring" */
/* POLYGONTYPE */
typedef struct
{
GBOX *bbox;
POINTARRAY **rings; /* list of rings (list of points) */
int32_t srid;
lwflags_t flags;
uint8_t type; /* POLYGONTYPE */
char pad[1]; /* Padding to 24 bytes (unused) */
uint32_t nrings; /* how many rings we are currently storing */
uint32_t maxrings; /* how many rings we have space for in **rings */
}
LWPOLY; /* "light-weight polygon" */
/* MULTIPOINTTYPE */
typedef struct
{
GBOX *bbox;
LWPOINT **geoms;
int32_t srid;
lwflags_t flags;
uint8_t type; /* MULTYPOINTTYPE */
char pad[1]; /* Padding to 24 bytes (unused) */
uint32_t ngeoms; /* how many geometries we are currently storing */
uint32_t maxgeoms; /* how many geometries we have space for in **geoms */
}
LWMPOINT;
/* MULTILINETYPE */
typedef struct
{
GBOX *bbox;
LWLINE **geoms;
int32_t srid;
lwflags_t flags;
uint8_t type; /* MULTILINETYPE */
char pad[1]; /* Padding to 24 bytes (unused) */
uint32_t ngeoms; /* how many geometries we are currently storing */
uint32_t maxgeoms; /* how many geometries we have space for in **geoms */
}
LWMLINE;
/* MULTIPOLYGONTYPE */
typedef struct
{
GBOX *bbox;
LWPOLY **geoms;
int32_t srid;
lwflags_t flags;
uint8_t type; /* MULTIPOLYGONTYPE */
char pad[1]; /* Padding to 24 bytes (unused) */
uint32_t ngeoms; /* how many geometries we are currently storing */
uint32_t maxgeoms; /* how many geometries we have space for in **geoms */
}
LWMPOLY;
/* COLLECTIONTYPE */
typedef struct
{
GBOX *bbox;
LWGEOM **geoms;
int32_t srid;
lwflags_t flags;
uint8_t type; /* COLLECTIONTYPE */
char pad[1]; /* Padding to 24 bytes (unused) */
uint32_t ngeoms; /* how many geometries we are currently storing */
uint32_t maxgeoms; /* how many geometries we have space for in **geoms */
}
LWCOLLECTION;
/* COMPOUNDTYPE */
typedef struct
{
GBOX *bbox;
LWGEOM **geoms;
int32_t srid;
lwflags_t flags;
uint8_t type; /* COLLECTIONTYPE */
char pad[1]; /* Padding to 24 bytes (unused) */
uint32_t ngeoms; /* how many geometries we are currently storing */
uint32_t maxgeoms; /* how many geometries we have space for in **geoms */
}
LWCOMPOUND; /* "light-weight compound line" */
/* CURVEPOLYTYPE */
typedef struct
{
GBOX *bbox;
LWGEOM **rings;
int32_t srid;
lwflags_t flags;
uint8_t type; /* CURVEPOLYTYPE */
char pad[1]; /* Padding to 24 bytes (unused) */
uint32_t nrings; /* how many rings we are currently storing */
uint32_t maxrings; /* how many rings we have space for in **rings */
}
LWCURVEPOLY; /* "light-weight polygon" */
/* MULTICURVE */
typedef struct
{
GBOX *bbox;
LWGEOM **geoms;
int32_t srid;
lwflags_t flags;
uint8_t type; /* MULTICURVE */
char pad[1]; /* Padding to 24 bytes (unused) */
uint32_t ngeoms; /* how many geometries we are currently storing */
uint32_t maxgeoms; /* how many geometries we have space for in **geoms */
}
LWMCURVE;
/* MULTISURFACETYPE */
typedef struct
{
GBOX *bbox;
LWGEOM **geoms;
int32_t srid;
lwflags_t flags;
uint8_t type; /* MULTISURFACETYPE */
char pad[1]; /* Padding to 24 bytes (unused) */
uint32_t ngeoms; /* how many geometries we are currently storing */
uint32_t maxgeoms; /* how many geometries we have space for in **geoms */
}
LWMSURFACE;
/* POLYHEDRALSURFACETYPE */
typedef struct
{
GBOX *bbox;
LWPOLY **geoms;
int32_t srid;
lwflags_t flags;
uint8_t type; /* POLYHEDRALSURFACETYPE */
char pad[1]; /* Padding to 24 bytes (unused) */
uint32_t ngeoms; /* how many geometries we are currently storing */
uint32_t maxgeoms; /* how many geometries we have space for in **geoms */
}
LWPSURFACE;
/* TINTYPE */
typedef struct
{
GBOX *bbox;
LWTRIANGLE **geoms;
int32_t srid;
lwflags_t flags;
uint8_t type; /* TINTYPE */
char pad[1]; /* Padding to 24 bytes (unused) */
uint32_t ngeoms; /* how many geometries we are currently storing */
uint32_t maxgeoms; /* how many geometries we have space for in **geoms */
}
LWTIN;
/* Functions */
extern int32 geo_get_srid(const GSERIALIZED *g);
/* PROJ */
struct PJconsts;
typedef struct PJconsts PJ;
typedef struct LWPROJ
{
PJ* pj;
/* for pipeline transforms, whether to do a forward or inverse */
bool pipeline_is_forward;
/* Source crs is geographic: Used in geography calls (source srid == dst srid) */
uint8_t source_is_latlong;
/* Source ellipsoid parameters */
double source_semi_major_metre;
double source_semi_minor_metre;
} LWPROJ;
#endif /* _LIBLWGEOM_H */
/*****************************************************************************
* Toolchain dependent definitions
*****************************************************************************/
#ifdef _MSC_VER
/*
* Under MSVC, functions exported by a loadable module must be marked
* "dllexport". Other compilers don't need that.
* Borrowed from PostgreSQL file win32.h
*/
#define PGDLLEXPORT __declspec (dllexport)
/*
* Avoids warning C4996: 'strdup': The POSIX name for this item is deprecated.
*/
#define strdup _strdup
#endif
/*****************************************************************************
* Type definitions
*****************************************************************************/
/**
* @brief Align to double
*/
#define DOUBLE_PAD(size) ( (size) + ((size) % 8 ? (8 - (size) % 8) : 0 ) )
/**
* Structure to represent sets of values
*/
typedef struct
{
int32 vl_len_; /**< Varlena header (do not touch directly!) */
uint8 settype; /**< Set type */
uint8 basetype; /**< Span basetype */
int16 flags; /**< Flags */
int32 count; /**< Number of elements */
int32 maxcount; /**< Maximum number of elements */
int16 bboxsize; /**< Size of the bouding box */
} Set;
/**
* Structure to represent spans (a.k.a. ranges)
*/
typedef struct
{
uint8 spantype; /**< span type */
uint8 basetype; /**< span basetype */
bool lower_inc; /**< lower bound is inclusive (vs exclusive) */
bool upper_inc; /**< upper bound is inclusive (vs exclusive) */
char padding[4]; /**< Not used */
Datum lower; /**< lower bound value */
Datum upper; /**< upper bound value */
} Span;
/**
* Structure to represent span sets
*/
typedef struct
{
int32 vl_len_; /**< Varlena header (do not touch directly!) */
uint8 spansettype; /**< Span set type */
uint8 spantype; /**< Span type */
uint8 basetype; /**< Span basetype */
char padding; /**< Not used */
int32 count; /**< Number of elements */
int32 maxcount; /**< Maximum number of elements */
Span span; /**< Bounding span */
Span elems[1]; /**< Beginning of variable-length data */
} SpanSet;
/**
* Structure to represent temporal boxes
*/
typedef struct
{
Span period; /**< time span */
Span span; /**< value span */
int16 flags; /**< flags */
} TBox;
/**
* Structure to represent spatiotemporal boxes
*/
typedef struct
{
Span period; /**< time span */
double xmin; /**< minimum x value */
double ymin; /**< minimum y value */
double zmin; /**< minimum z value */
double xmax; /**< maximum x value */
double ymax; /**< maximum y value */
double zmax; /**< maximum z value */
int32 srid; /**< SRID */
int16 flags; /**< flags */
} STBox;
/**
* @brief Enumeration that defines the temporal subtypes used in MEOS
*/
typedef enum
{
ANYTEMPSUBTYPE = 0, /**< Any temporal subtype */
TINSTANT = 1, /**< Temporal instant subtype */
TSEQUENCE = 2, /**< Temporal sequence subtype */
TSEQUENCESET = 3, /**< Temporal sequence set subtype */
} tempSubtype;
/**
* @brief Enumeration that defines the interpolation types used in MEOS
*/
typedef enum
{
INTERP_NONE = 0,
DISCRETE = 1,
STEP = 2,
LINEAR = 3,
} interpType;
/**
* @brief Enumeration that defines the spatial relationships for which a call
* to GEOS is made.
*/
typedef enum
{
INTERSECTS = 0,
CONTAINS = 1,
TOUCHES = 2,
COVERS = 3,
} spatialRel;
/**
* Structure to represent the common structure of temporal values of
* any temporal subtype
*/
typedef struct
{
int32 vl_len_; /**< Varlena header (do not touch directly!) */
uint8 temptype; /**< Temporal type */
uint8 subtype; /**< Temporal subtype */
int16 flags; /**< Flags */
/* variable-length data follows */
} Temporal;
/**
* Structure to represent temporal values of instant subtype
*/
typedef struct
{
int32 vl_len_; /**< Varlena header (do not touch directly!) */
uint8 temptype; /**< Temporal type */
uint8 subtype; /**< Temporal subtype */
int16 flags; /**< Flags */
TimestampTz t; /**< Timestamp (8 bytes) */
Datum value; /**< Base value for types passed by value,
first 8 bytes of the base value for values
passed by reference. The extra bytes
needed are added upon creation. */
/* variable-length data follows */
} TInstant;
/**
* Structure to represent temporal values of instant set or sequence subtype
*/
typedef struct
{
int32 vl_len_; /**< Varlena header (do not touch directly!) */
uint8 temptype; /**< Temporal type */
uint8 subtype; /**< Temporal subtype */
int16 flags; /**< Flags */
int32 count; /**< Number of TInstant elements */
int32 maxcount; /**< Maximum number of TInstant elements */
int16 bboxsize; /**< Size of the bounding box */
char padding[6]; /**< Not used */
Span period; /**< Time span (24 bytes). All bounding boxes start
with a period so actually it is also the begining
of the bounding box. The extra bytes needed for
the bounding box are added upon creation. */
/* variable-length data follows */
} TSequence;
#define TSEQUENCE_BBOX_PTR(seq) ((void *)(&(seq)->period))
/**
* Structure to represent temporal values of sequence set subtype
*/
typedef struct
{
int32 vl_len_; /**< Varlena header (do not touch directly!) */
uint8 temptype; /**< Temporal type */
uint8 subtype; /**< Temporal subtype */
int16 flags; /**< Flags */
int32 count; /**< Number of TSequence elements */
int32 totalcount; /**< Total number of TInstant elements in all
composing TSequence elements */
int32 maxcount; /**< Maximum number of TSequence elements */
int16 bboxsize; /**< Size of the bounding box */
int16 padding; /**< Not used */
Span period; /**< Time span (24 bytes). All bounding boxes start
with a period so actually it is also the begining
of the bounding box. The extra bytes needed for
the bounding box are added upon creation. */
/* variable-length data follows */
} TSequenceSet;
#define TSEQUENCESET_BBOX_PTR(ss) ((void *)(&(ss)->period))
/**
* Struct for storing a similarity match
*/
typedef struct
{
int i;
int j;
} Match;
/*****************************************************************************/
/**
* Structure to represent skiplist elements
*/
#define SKIPLIST_MAXLEVEL 32 /**< maximum possible is 47 with current RNG */
typedef struct
{
void *value;
int height;
int next[SKIPLIST_MAXLEVEL];
} SkipListElem;
/**
* Structure to represent skiplists that keep the current state of an aggregation
*/
typedef struct
{
int capacity;
int next;
int length;
int *freed;
int freecount;
int freecap;
int tail;
void *extra;
size_t extrasize;
SkipListElem *elems;
} SkipList;
/*****************************************************************************
* Error codes
*****************************************************************************/
typedef enum
{
MEOS_SUCCESS = 0, // Successful operation
MEOS_ERR_INTERNAL_ERROR = 1, // Unspecified internal error
MEOS_ERR_INTERNAL_TYPE_ERROR = 2, // Internal type error
MEOS_ERR_VALUE_OUT_OF_RANGE = 3, // Internal out of range error
MEOS_ERR_DIVISION_BY_ZERO = 4, // Internal division by zero error
MEOS_ERR_MEMORY_ALLOC_ERROR = 5, // Internal malloc error
MEOS_ERR_AGGREGATION_ERROR = 6, // Internal aggregation error
MEOS_ERR_DIRECTORY_ERROR = 7, // Internal directory error
MEOS_ERR_FILE_ERROR = 8, // Internal file error
MEOS_ERR_INVALID_ARG = 10, // Invalid argument
MEOS_ERR_INVALID_ARG_TYPE = 11, // Invalid argument type
MEOS_ERR_INVALID_ARG_VALUE = 12, // Invalid argument value
MEOS_ERR_MFJSON_INPUT = 20, // MFJSON input error
MEOS_ERR_MFJSON_OUTPUT = 21, // MFJSON output error
MEOS_ERR_TEXT_INPUT = 22, // Text input error
MEOS_ERR_TEXT_OUTPUT = 23, // Text output error
MEOS_ERR_WKB_INPUT = 24, // WKB input error
MEOS_ERR_WKB_OUTPUT = 25, // WKB output error
MEOS_ERR_GEOJSON_INPUT = 26, // GEOJSON input error
MEOS_ERR_GEOJSON_OUTPUT = 27, // GEOJSON output error
} errorCode;
extern void meos_error(int errlevel, int errcode, char *format, ...);
/* Set or read error level */
extern int meos_errno(void);
extern int meos_errno_set(int err);
extern int meos_errno_restore(int err);
extern int meos_errno_reset(void);
/*****************************************************************************
* Initialization of the MEOS library
*****************************************************************************/
/* Definition of error handler function */
typedef void (*error_handler_fn)(int, int, char *);
extern void meos_initialize_timezone(const char *name);
extern void meos_initialize_error_handler(error_handler_fn err_handler);
extern void meos_finalize_timezone(void);
extern bool meos_set_datestyle(char *newval, void *extra);
extern bool meos_set_intervalstyle(char *newval, int extra);
extern char *meos_get_datestyle(void);
extern char *meos_get_intervalstyle(void);
extern void meos_initialize(const char *tz_str, error_handler_fn err_handler);
extern void meos_finalize(void);
/*===========================================================================*
* Functions for PostgreSQL types
*===========================================================================*/
extern DateADT add_date_int(DateADT d, int32 days);
extern Interval *add_interval_interval(const Interval *interv1, const Interval *interv2);
extern TimestampTz add_timestamptz_interval(TimestampTz t, const Interval *interv);
extern bool bool_in(const char *str);
extern char *bool_out(bool b);
extern text *cstring2text(const char *str);
extern TimestampTz date_to_timestamptz(DateADT d);
extern Interval *minus_date_date(DateADT d1, DateADT d2);
extern DateADT minus_date_int(DateADT d, int32 days);
extern TimestampTz minus_timestamptz_interval(TimestampTz t, const Interval *interv);
extern Interval *minus_timestamptz_timestamptz(TimestampTz t1, TimestampTz t2);
extern Interval *mult_interval_double(const Interval *interv, double factor);
extern DateADT pg_date_in(const char *str);
extern char *pg_date_out(DateADT d);
extern int pg_interval_cmp(const Interval *interv1, const Interval *interv2);
extern Interval *pg_interval_in(const char *str, int32 typmod);
extern Interval *pg_interval_make(int32 years, int32 months, int32 weeks, int32 days, int32 hours, int32 mins, double secs);
extern char *pg_interval_out(const Interval *interv);
extern TimeADT pg_time_in(const char *str, int32 typmod);
extern char *pg_time_out(TimeADT t);
extern Timestamp pg_timestamp_in(const char *str, int32 typmod);
extern char *pg_timestamp_out(Timestamp t);
extern TimestampTz pg_timestamptz_in(const char *str, int32 typmod);
extern char *pg_timestamptz_out(TimestampTz t);
extern char *text2cstring(const text *txt);
extern int text_cmp(const text *txt1, const text *txt2);
extern text *text_copy(const text *txt);
extern text *text_initcap(const text *txt);
extern text *text_lower(const text *txt);
extern char *text_out(const text *txt);
extern text *text_upper(const text *txt);
extern text *textcat_text_text(const text *txt1, const text *txt2);
extern DateADT timestamptz_to_date(TimestampTz t);
/*===========================================================================*
* Functions for PostGIS types
*===========================================================================*/
extern bytea *geo_as_ewkb(const GSERIALIZED *gs, char *endian);
extern char *geo_as_ewkt(const GSERIALIZED *gs, int precision);
extern char *geo_as_geojson(const GSERIALIZED *gs, int option, int precision, char *srs);
extern char *geo_as_hexewkb(const GSERIALIZED *gs, const char *endian);
extern char *geo_as_text(const GSERIALIZED *gs, int precision);
extern GSERIALIZED *geo_from_ewkb(const bytea *bytea_wkb, int32 srid);
extern GSERIALIZED *geo_from_geojson(const char *geojson);
extern char *geo_out(const GSERIALIZED *gs);
extern bool geo_same(const GSERIALIZED *gs1, const GSERIALIZED *gs2);
extern GSERIALIZED *geography_from_hexewkb(const char *wkt);
extern GSERIALIZED *geography_from_text(char *wkt, int srid);
extern GSERIALIZED *geometry_from_hexewkb(const char *wkt);
extern GSERIALIZED *geometry_from_text(char *wkt, int srid);
extern GSERIALIZED *pgis_geography_in(char *str, int32 typmod);
extern GSERIALIZED *pgis_geometry_in(char *str, int32 typmod);
/*===========================================================================*
* Functions for set and span types
*===========================================================================*/
/*****************************************************************************
* Input/output functions for set and span types
*****************************************************************************/
extern Set *bigintset_in(const char *str);
extern char *bigintset_out(const Set *set);
extern Span *bigintspan_in(const char *str);
extern char *bigintspan_out(const Span *s);
extern SpanSet *bigintspanset_in(const char *str);
extern char *bigintspanset_out(const SpanSet *ss);
extern Set *dateset_in(const char *str);
extern char *dateset_out(const Set *s);
extern Span *datespan_in(const char *str);
extern char *datespan_out(const Span *s);
extern SpanSet *datespanset_in(const char *str);
extern char *datespanset_out(const SpanSet *ss);
extern Set *floatset_in(const char *str);
extern char *floatset_out(const Set *set, int maxdd);
extern Span *floatspan_in(const char *str);
extern char *floatspan_out(const Span *s, int maxdd);
extern SpanSet *floatspanset_in(const char *str);
extern char *floatspanset_out(const SpanSet *ss, int maxdd);
extern Set *geogset_in(const char *str);
extern Set *geomset_in(const char *str);
extern char *geoset_as_ewkt(const Set *set, int maxdd);
extern char *geoset_as_text(const Set *set, int maxdd);
extern char *geoset_out(const Set *set, int maxdd);
extern Set *intset_in(const char *str);
extern char *intset_out(const Set *set);
extern Span *intspan_in(const char *str);
extern char *intspan_out(const Span *s);
extern SpanSet *intspanset_in(const char *str);
extern char *intspanset_out(const SpanSet *ss);
extern char *set_as_hexwkb(const Set *s, uint8_t variant, size_t *size_out);
extern uint8_t *set_as_wkb(const Set *s, uint8_t variant, size_t *size_out);
extern Set *set_from_hexwkb(const char *hexwkb);
extern Set *set_from_wkb(const uint8_t *wkb, size_t size);
extern char *span_as_hexwkb(const Span *s, uint8_t variant, size_t *size_out);
extern uint8_t *span_as_wkb(const Span *s, uint8_t variant, size_t *size_out);
extern Span *span_from_hexwkb(const char *hexwkb);
extern Span *span_from_wkb(const uint8_t *wkb, size_t size);
extern char *spanset_as_hexwkb(const SpanSet *ss, uint8_t variant, size_t *size_out);
extern uint8_t *spanset_as_wkb(const SpanSet *ss, uint8_t variant, size_t *size_out);
extern SpanSet *spanset_from_hexwkb(const char *hexwkb);
extern SpanSet *spanset_from_wkb(const uint8_t *wkb, size_t size);
extern Set *textset_in(const char *str);
extern char *textset_out(const Set *set);
extern Set *tstzset_in(const char *str);
extern char *tstzset_out(const Set *set);
extern Span *tstzspan_in(const char *str);
extern char *tstzspan_out(const Span *s);
extern SpanSet *tstzspanset_in(const char *str);
extern char *tstzspanset_out(const SpanSet *ss);
/*****************************************************************************
* Constructor functions for set and span types
*****************************************************************************/
extern Set *bigintset_make(const int64 *values, int count);
extern Span *bigintspan_make(int64 lower, int64 upper, bool lower_inc, bool upper_inc);
extern Set *dateset_make(const DateADT *values, int count);
extern Span *datespan_make(DateADT lower, DateADT upper, bool lower_inc, bool upper_inc);
extern Set *floatset_make(const double *values, int count);
extern Span *floatspan_make(double lower, double upper, bool lower_inc, bool upper_inc);
extern Set *geoset_make(const GSERIALIZED **values, int count);
extern Set *intset_make(const int *values, int count);
extern Span *intspan_make(int lower, int upper, bool lower_inc, bool upper_inc);
extern Set *set_copy(const Set *s);
extern Span *span_copy(const Span *s);
extern SpanSet *spanset_copy(const SpanSet *ss);
extern SpanSet *spanset_make(Span *spans, int count, bool normalize, bool order);
extern Set *textset_make(const text **values, int count);
extern Set *tstzset_make(const TimestampTz *values, int count);
extern Span *tstzspan_make(TimestampTz lower, TimestampTz upper, bool lower_inc, bool upper_inc);
/*****************************************************************************
* Conversion functions for set and span types
*****************************************************************************/
extern Set *bigint_to_set(int64 i);
extern Span *bigint_to_span(int i);
extern SpanSet *bigint_to_spanset(int i);
extern Set *date_to_set(DateADT d);
extern Span *date_to_span(DateADT d);
extern SpanSet *date_to_spanset(DateADT d);
extern Set *dateset_to_tstzset(const Set *s);
extern Span *datespan_to_tstzspan(const Span *s);
extern SpanSet *datespanset_to_tstzspanset(const SpanSet *ss);
extern Set *float_to_set(double d);
extern Span *float_to_span(double d);
extern SpanSet *float_to_spanset(double d);
extern Set *floatset_to_intset(const Set *s);
extern Span *floatspan_to_intspan(const Span *s);
extern SpanSet *floatspanset_to_intspanset(const SpanSet *ss);
extern Set *geo_to_set(GSERIALIZED *gs);
extern Set *int_to_set(int i);
extern Span *int_to_span(int i);
extern SpanSet *int_to_spanset(int i);
extern Set *intset_to_floatset(const Set *s);
extern Span *intspan_to_floatspan(const Span *s);
extern SpanSet *intspanset_to_floatspanset(const SpanSet *ss);
extern SpanSet *set_to_spanset(const Set *s);
extern SpanSet *span_to_spanset(const Span *s);
extern Set *text_to_set(text *txt);
extern Set *timestamptz_to_set(TimestampTz t);
extern Span *timestamptz_to_span(TimestampTz t);
extern SpanSet *timestamptz_to_spanset(TimestampTz t);
extern Set *tstzset_to_dateset(const Set *s);
extern Span *tstzspan_to_datespan(const Span *s);
extern SpanSet *tstzspanset_to_datespanset(const SpanSet *ss);
/*****************************************************************************
* Accessor functions for set and span types
*****************************************************************************/
extern int64 bigintset_end_value(const Set *s);
extern int64 bigintset_start_value(const Set *s);
extern bool bigintset_value_n(const Set *s, int n, int64 *result);
extern int64 *bigintset_values(const Set *s);
extern int64 bigintspan_lower(const Span *s);
extern int64 bigintspan_upper(const Span *s);
extern int64 bigintspan_width(const Span *s);
extern int64 bigintspanset_lower(const SpanSet *ss);
extern int64 bigintspanset_upper(const SpanSet *ss);