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authormonty@mashka.mysql.fi <>2002-10-02 13:33:08 +0300
committermonty@mashka.mysql.fi <>2002-10-02 13:33:08 +0300
commitd69250a969449da43891ef5b2859df77917183a8 (patch)
tree5a27bda6d3f628af7dcb922ad022e84cf8cb351c /sql/spatial.h
parent7134ffec210edde21860a2b2c2654be481de49b4 (diff)
downloadmariadb-git-d69250a969449da43891ef5b2859df77917183a8.tar.gz
Fixes and code cleanups after merge with 4.0.3
Warning handling and initial prepared statement handling (last not complete yet) Changed a lot of functions that returned 0/1 to my_bool type. GRANT handling now uses read/write locks instead of mutex Change basic net functions to use THD instead of NET (needed for 4.1 protocol) Use my_sprintf instead of sprintf() + strlen() Added alloc_query() to be able to chare query initialization code with prepared statements. Cleanup handling of SHOW COUNT(*) WARNINGS and SELECT LAST_INSERT_ID() Note that the following test fails (will be fixed ASAP): sub_select, union, rpl_rotate_logs and rpl_mystery22
Diffstat (limited to 'sql/spatial.h')
-rw-r--r--sql/spatial.h145
1 files changed, 83 insertions, 62 deletions
diff --git a/sql/spatial.h b/sql/spatial.h
index c6e30a44fbf..3f09e86e823 100644
--- a/sql/spatial.h
+++ b/sql/spatial.h
@@ -1,8 +1,22 @@
+/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
+
#ifndef _spatial_h
#define _spatial_h
-#include "gstream.h"
-
const uint POINT_DATA_SIZE = 8+8;
const uint WKB_HEADER_SIZE = 1+4;
@@ -30,7 +44,8 @@ struct MBR
ymax=-DBL_MAX;
}
- MBR(const double &_xmin, const double &_ymin, const double &_xmax, const double &_ymax)
+ MBR(const double &_xmin, const double &_ymin,
+ const double &_xmax, const double &_ymax)
{
xmin=_xmin;
ymin=_ymin;
@@ -52,7 +67,8 @@ struct MBR
double ymax;
void add_xy(double x, double y)
- { /* Not using "else" for proper one point MBR calculation */
+ {
+ /* Not using "else" for proper one point MBR calculation */
if (x<xmin)
{
xmin=x;
@@ -72,10 +88,11 @@ struct MBR
}
void add_xy(const char *px, const char *py)
- { /* Not using "else" for proper one point MBR calculation */
+ {
double x, y;
float8get(x, px);
float8get(y, py);
+ /* Not using "else" for proper one point MBR calculation */
if (x<xmin)
{
xmin=x;
@@ -116,12 +133,14 @@ struct MBR
int equals(const MBR *mbr)
{
- return (mbr->xmin==xmin)&&(mbr->ymin==ymin)&&(mbr->xmax==xmax)&&(mbr->ymax==ymax);
+ return ((mbr->xmin == xmin) && (mbr->ymin == ymin) &&
+ (mbr->xmax == xmax) && (mbr->ymax == ymax));
}
int disjoint(const MBR *mbr)
{
- return (mbr->xmin>xmax)||(mbr->ymin>ymax)||(mbr->xmax<xmin)||(mbr->ymax<ymin);
+ return ((mbr->xmin > xmax) || (mbr->ymin > ymax) ||
+ (mbr->xmax < xmin) || (mbr->ymax < ymin));
}
int intersects(const MBR *mbr)
@@ -131,24 +150,24 @@ struct MBR
int touches(const MBR *mbr)
{
- return (((mbr->xmin==xmax) || (mbr->xmax==xmin)) &&
- ((mbr->ymin>=ymin) && (mbr->ymin<=ymax) ||
- (mbr->ymax>=ymin) && (mbr->ymax<=ymax))) ||
- (((mbr->ymin==ymax) || (mbr->ymax==ymin)) &&
- ((mbr->xmin>=xmin) && (mbr->xmin<=xmax) ||
- (mbr->xmax>=xmin)&&(mbr->xmax<=xmax)));
+ return ((((mbr->xmin == xmax) || (mbr->xmax == xmin)) &&
+ ((mbr->ymin >= ymin) && (mbr->ymin <= ymax) ||
+ (mbr->ymax >= ymin) && (mbr->ymax <= ymax))) ||
+ (((mbr->ymin == ymax) || (mbr->ymax == ymin)) &&
+ ((mbr->xmin >= xmin) && (mbr->xmin <= xmax) ||
+ (mbr->xmax >= xmin) && (mbr->xmax <= xmax))));
}
int within(const MBR *mbr)
{
- return (mbr->xmin<=xmin) && (mbr->ymin<=ymin) &&
- (mbr->xmax>=xmax) && (mbr->ymax>=ymax);
+ return ((mbr->xmin <= xmin) && (mbr->ymin <= ymin) &&
+ (mbr->xmax >= xmax) && (mbr->ymax >= ymax));
}
int contains(const MBR *mbr)
{
- return (mbr->xmin>=xmin) && (mbr->ymin>=ymin) &&
- (mbr->xmax<=xmax) && (mbr->ymax<=ymax);
+ return ((mbr->xmin >= xmin) && (mbr->ymin >= ymin) &&
+ (mbr->xmax <= xmax) && (mbr->ymax <= ymax));
}
bool inner_point(double x, double y) const
@@ -245,45 +264,46 @@ public:
size_t get_data_size() const { return (this->*m_vmt->get_data_size)(); }
int init_from_text(GTextReadStream *trs, String *wkb)
- { return (this->*m_vmt->init_from_text)(trs, wkb); }
+ { return (this->*m_vmt->init_from_text)(trs, wkb); }
int get_data_as_text(String *txt) const
- { return (this->*m_vmt->get_data_as_text)(txt); }
+ { return (this->*m_vmt->get_data_as_text)(txt); }
int get_mbr(MBR *mbr) const { return (this->*m_vmt->get_mbr)(mbr); }
int dimension(uint32 *dim) const
- { return (this->*m_vmt->dimension)(dim); }
+ { return (this->*m_vmt->dimension)(dim); }
int get_x(double *x) const { return (this->*m_vmt->get_x)(x); }
int get_y(double *y) const { return (this->*m_vmt->get_y)(y); }
int length(double *len) const { return (this->*m_vmt->length)(len); }
int area(double *ar) const { return (this->*m_vmt->area)(ar); }
- int is_closed(int *closed) const { return (this->*m_vmt->is_closed)(closed); }
+ int is_closed(int *closed) const
+ { return (this->*m_vmt->is_closed)(closed); }
int num_interior_ring(uint32 *n_int_rings) const
- { return (this->*m_vmt->num_interior_ring)(n_int_rings); }
+ { return (this->*m_vmt->num_interior_ring)(n_int_rings); }
int num_points(uint32 *n_points) const
- { return (this->*m_vmt->num_points)(n_points); }
+ { return (this->*m_vmt->num_points)(n_points); }
int num_geometries(uint32 *num) const
- { return (this->*m_vmt->num_geometries)(num); }
+ { return (this->*m_vmt->num_geometries)(num); }
int start_point(String *point) const
- { return (this->*m_vmt->start_point)(point); }
+ { return (this->*m_vmt->start_point)(point); }
int end_point(String *point) const
- { return (this->*m_vmt->end_point)(point); }
+ { return (this->*m_vmt->end_point)(point); }
int exterior_ring(String *ring) const
- { return (this->*m_vmt->exterior_ring)(ring); }
+ { return (this->*m_vmt->exterior_ring)(ring); }
int centroid(String *point) const
- { return (this->*m_vmt->centroid)(point); }
+ { return (this->*m_vmt->centroid)(point); }
int point_n(uint32 num, String *result) const
- { return (this->*m_vmt->point_n)(num, result); }
+ { return (this->*m_vmt->point_n)(num, result); }
int interior_ring_n(uint32 num, String *result) const
- { return (this->*m_vmt->interior_ring_n)(num, result); }
+ { return (this->*m_vmt->interior_ring_n)(num, result); }
int geometry_n(uint32 num, String *result) const
- { return (this->*m_vmt->geometry_n)(num, result); }
+ { return (this->*m_vmt->geometry_n)(num, result); }
public:
int create_from_wkb(const char *data, uint32 data_len);
@@ -301,11 +321,11 @@ public:
int as_wkt(String *wkt) const
{
- if(wkt->reserve(strlen(get_class_info()->m_name) + 2, 512))
+ if (wkt->reserve(strlen(get_class_info()->m_name) + 2, 512))
return 1;
wkt->qs_append(get_class_info()->m_name);
wkt->qs_append('(');
- if(get_data_as_text(wkt))
+ if (get_data_as_text(wkt))
return 1;
wkt->qs_append(')');
return 0;
@@ -330,35 +350,37 @@ protected:
bool no_data(const char *cur_data, uint32 data_amount) const
{
- return cur_data + data_amount > m_data_end;
+ return (cur_data + data_amount > m_data_end);
}
const char *m_data;
const char *m_data_end;
};
+#define SIZEOF_STORED_DOUBLE 8
+
/***************************** Point *******************************/
class GPoint: public Geometry
{
public:
- size_t get_data_size() const;
- int init_from_text(GTextReadStream *trs, String *wkb);
- int get_data_as_text(String *txt) const;
- int get_mbr(MBR *mbr) const;
+ size_t get_data_size() const;
+ int init_from_text(GTextReadStream *trs, String *wkb);
+ int get_data_as_text(String *txt) const;
+ int get_mbr(MBR *mbr) const;
int get_xy(double *x, double *y) const
{
const char *data = m_data;
- if(no_data(data, sizeof(double)) * 2) return 1;
+ if (no_data(data, SIZEOF_STORED_DOUBLE * 2)) return 1;
float8get(*x, data);
- float8get(*y, data + sizeof(double));
+ float8get(*y, data + SIZEOF_STORED_DOUBLE);
return 0;
}
int get_x(double *x) const
{
- if(no_data(m_data, sizeof(double))) return 1;
+ if (no_data(m_data, SIZEOF_STORED_DOUBLE)) return 1;
float8get(*x, m_data);
return 0;
}
@@ -366,8 +388,8 @@ public:
int get_y(double *y) const
{
const char *data = m_data;
- if(no_data(data, sizeof(double)) * 2) return 1;
- float8get(*y, data + sizeof(double));
+ if (no_data(data, SIZEOF_STORED_DOUBLE * 2)) return 1;
+ float8get(*y, data + SIZEOF_STORED_DOUBLE);
return 0;
}
@@ -399,11 +421,11 @@ public:
class GPolygon: public Geometry
{
public:
- size_t get_data_size() const;
- int init_from_text(GTextReadStream *trs, String *wkb);
- int get_data_as_text(String *txt) const;
- int get_mbr(MBR *mbr) const;
-
+ size_t get_data_size() const;
+ int init_from_text(GTextReadStream *trs, String *wkb);
+ int get_data_as_text(String *txt) const;
+ int get_mbr(MBR *mbr) const;
+
int area(double *ar) const;
int exterior_ring(String *result) const;
int num_interior_ring(uint32 *n_int_rings) const;
@@ -431,11 +453,11 @@ public:
class GMultiLineString: public Geometry
{
public:
- size_t get_data_size() const;
- int init_from_text(GTextReadStream *trs, String *wkb);
- int get_data_as_text(String *txt) const;
- int get_mbr(MBR *mbr) const;
-
+ size_t get_data_size() const;
+ int init_from_text(GTextReadStream *trs, String *wkb);
+ int get_data_as_text(String *txt) const;
+ int get_mbr(MBR *mbr) const;
+
int length(double *len) const;
int is_closed(int *closed) const;
int dimension(uint32 *dim) const { *dim = 1; return 0; }
@@ -446,10 +468,10 @@ public:
class GMultiPolygon: public Geometry
{
public:
- size_t get_data_size() const;
- int init_from_text(GTextReadStream *trs, String *wkb);
- int get_data_as_text(String *txt) const;
- int get_mbr(MBR *mbr) const;
+ size_t get_data_size() const;
+ int init_from_text(GTextReadStream *trs, String *wkb);
+ int get_data_as_text(String *txt) const;
+ int get_mbr(MBR *mbr) const;
int area(double *ar) const;
int centroid(String *result) const;
@@ -462,14 +484,13 @@ public:
class GGeometryCollection: public Geometry
{
public:
- size_t get_data_size() const;
- int init_from_text(GTextReadStream *trs, String *wkb);
- int get_data_as_text(String *txt) const;
- int get_mbr(MBR *mbr) const;
+ size_t get_data_size() const;
+ int init_from_text(GTextReadStream *trs, String *wkb);
+ int get_data_as_text(String *txt) const;
+ int get_mbr(MBR *mbr) const;
int num_geometries(uint32 *num) const;
int geometry_n(uint32 num, String *result) const;
-
int dimension(uint32 *dim) const;
};