trunk/src/ways.c

/***************************************
 Way data type functions.

 Part of the Routino routing software.
 ******************/ /******************
 This file Copyright 2008-2011 Andrew M. Bishop

 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU Affero General Public License as published by
 the Free Software Foundation, either version 3 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 Affero General Public License for more details.

 You should have received a copy of the GNU Affero General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ***************************************/


#include <stdlib.h>

#include "ways.h"

#include "files.h"


/*++++++++++++++++++++++++++++++++++++++
  Load in a way list from a file.

  Ways *LoadWayList Returns the way list.

  const char *filename The name of the file to load.
  ++++++++++++++++++++++++++++++++++++++*/

Ways *LoadWayList(const char *filename)
{
 Ways *ways;

 ways=(Ways*)malloc(sizeof(Ways));

#if !SLIM

 ways->data=MapFile(filename);

 /* Copy the WaysFile structure from the loaded data */

 ways->file=*((WaysFile*)ways->data);

 /* Set the pointers in the Ways structure. */

 ways->ways =(Way *)(ways->data+sizeof(WaysFile));
 ways->names=(char*)(ways->data+sizeof(WaysFile)+ways->file.number*sizeof(Way));

#else

 ways->fd=ReOpenFile(filename);

 /* Copy the WaysFile header structure from the loaded data */

 ReadFile(ways->fd,&ways->file,sizeof(WaysFile));

 ways->incache[0]=NO_WAY;
 ways->incache[1]=NO_WAY;

 ways->namesoffset=sizeof(WaysFile)+ways->file.number*sizeof(Way);

 ways->nincache=~0;
 ways->ncached=NULL;

#endif

 return(ways);
}


/*++++++++++++++++++++++++++++++++++++++
  Return 0 if the two ways are the same (in respect of their types and limits),
           otherwise return positive or negative to allow sorting.

  int WaysCompare Returns a comparison.

  Way *way1 The first way.

  Way *way2 The second way.
  ++++++++++++++++++++++++++++++++++++++*/

int WaysCompare(Way *way1,Way *way2)
{
 if(way1==way2)
    return(0);

 if(way1->type!=way2->type)
    return((int)way1->type - (int)way2->type);

 if(way1->allow!=way2->allow)
    return((int)way1->allow - (int)way2->allow);

 if(way1->props!=way2->props)
    return((int)way1->props - (int)way2->props);

 if(way1->speed!=way2->speed)
    return((int)way1->speed - (int)way2->speed);

 if(way1->weight!=way2->weight)
    return((int)way1->weight - (int)way2->weight);

 if(way1->height!=way2->height)
    return((int)way1->height - (int)way2->height);

 if(way1->width!=way2->width)
    return((int)way1->width - (int)way2->width);

 if(way1->length!=way2->length)
    return((int)way1->length - (int)way2->length);

 return(0);
}
1	/***************************************
2	Way data type functions.
3
4	Part of the Routino routing software.
5	****************/ /****************
6	This file Copyright 2008-2011 Andrew M. Bishop
7
8	This program is free software: you can redistribute it and/or modify
9	it under the terms of the GNU Affero General Public License as published by
10	the Free Software Foundation, either version 3 of the License, or
11	(at your option) any later version.
12
13	This program is distributed in the hope that it will be useful,
14	but WITHOUT ANY WARRANTY; without even the implied warranty of
15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	GNU Affero General Public License for more details.
17
18	You should have received a copy of the GNU Affero General Public License
19	along with this program. If not, see <http://www.gnu.org/licenses/>.
20	***************************************/
21
22
23	#include <stdlib.h>
24
25	#include "ways.h"
26
27	#include "files.h"
28
29
30	/*++++++++++++++++++++++++++++++++++++++
31	Load in a way list from a file.
32
33	Ways *LoadWayList Returns the way list.
34
35	const char *filename The name of the file to load.
36	++++++++++++++++++++++++++++++++++++++*/
37
38	Ways LoadWayList(const char filename)
39	{
40	Ways *ways;
41
42	ways=(Ways*)malloc(sizeof(Ways));
43
44	#if !SLIM
45
46	ways->data=MapFile(filename);
47
48	/* Copy the WaysFile structure from the loaded data */
49
50	ways->file=((WaysFile)ways->data);
51
52	/* Set the pointers in the Ways structure. */
53
54	ways->ways =(Way *)(ways->data+sizeof(WaysFile));
55	ways->names=(char)(ways->data+sizeof(WaysFile)+ways->file.numbersizeof(Way));
56
57	#else
58
59	ways->fd=ReOpenFile(filename);
60
61	/* Copy the WaysFile header structure from the loaded data */
62
63	ReadFile(ways->fd,&ways->file,sizeof(WaysFile));
64
65	ways->incache[0]=NO_WAY;
66	ways->incache[1]=NO_WAY;
67
68	ways->namesoffset=sizeof(WaysFile)+ways->file.number*sizeof(Way);
69
70	ways->nincache=~0;
71	ways->ncached=NULL;
72
73	#endif
74
75	return(ways);
76	}
77
78
79	/*++++++++++++++++++++++++++++++++++++++
80	Return 0 if the two ways are the same (in respect of their types and limits),
81	otherwise return positive or negative to allow sorting.
82
83	int WaysCompare Returns a comparison.
84
85	Way *way1 The first way.
86
87	Way *way2 The second way.
88	++++++++++++++++++++++++++++++++++++++*/
89
90	int WaysCompare(Way way1,Way way2)
91	{
92	if(way1==way2)
93	return(0);
94
95	if(way1->type!=way2->type)
96	return((int)way1->type - (int)way2->type);
97
98	if(way1->allow!=way2->allow)
99	return((int)way1->allow - (int)way2->allow);
100
101	if(way1->props!=way2->props)
102	return((int)way1->props - (int)way2->props);
103
104	if(way1->speed!=way2->speed)
105	return((int)way1->speed - (int)way2->speed);
106
107	if(way1->weight!=way2->weight)
108	return((int)way1->weight - (int)way2->weight);
109
110	if(way1->height!=way2->height)
111	return((int)way1->height - (int)way2->height);
112
113	if(way1->width!=way2->width)
114	return((int)way1->width - (int)way2->width);
115
116	if(way1->length!=way2->length)
117	return((int)way1->length - (int)way2->length);
118
119	return(0);
120	}