trunk/src/ways.c

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

 Part of the Routino routing software.
 ******************/ /******************
 This file Copyright 2008-2014 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=SlimMapFile(filename);

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

 SlimFetch(ways->fd,&ways->file,sizeof(WaysFile),0);

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

 ways->cache=NewWayCache();

#endif

 return(ways);
}


/*++++++++++++++++++++++++++++++++++++++
  Destroy the way list.

  Ways *ways The way list to destroy.
  ++++++++++++++++++++++++++++++++++++++*/

void DestroyWayList(Ways *ways)
{
#if !SLIM

 ways->data=UnmapFile(ways->data);

#else

 ways->fd=SlimUnmapFile(ways->fd);

 DeleteWayCache(ways->cache);

#endif

 free(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 *way1p The first way.

  Way *way2p The second way.
  ++++++++++++++++++++++++++++++++++++++*/

int WaysCompare(Way *way1p,Way *way2p)
{
 if(way1p==way2p)
    return(0);

 if(way1p->type!=way2p->type)
    return((int)way1p->type - (int)way2p->type);

 if(way1p->allow!=way2p->allow)
    return((int)way1p->allow - (int)way2p->allow);

 if(way1p->props!=way2p->props)
    return((int)way1p->props - (int)way2p->props);

 if(way1p->speed!=way2p->speed)
    return((int)way1p->speed - (int)way2p->speed);

 if(way1p->weight!=way2p->weight)
    return((int)way1p->weight - (int)way2p->weight);

 if(way1p->height!=way2p->height)
    return((int)way1p->height - (int)way2p->height);

 if(way1p->width!=way2p->width)
    return((int)way1p->width - (int)way2p->width);

 if(way1p->length!=way2p->length)
    return((int)way1p->length - (int)way2p->length);

 return(0);
}
1	/***************************************
2	Way data type functions.
3
4	Part of the Routino routing software.
5	****************/ /****************
6	This file Copyright 2008-2014 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=SlimMapFile(filename);
60
61	/* Copy the WaysFile header structure from the loaded data */
62
63	SlimFetch(ways->fd,&ways->file,sizeof(WaysFile),0);
64
65	ways->namesoffset=sizeof(WaysFile)+ways->file.number*sizeof(Way);
66
67	ways->cache=NewWayCache();
68
69	#endif
70
71	return(ways);
72	}
73
74
75	/*++++++++++++++++++++++++++++++++++++++
76	Destroy the way list.
77
78	Ways *ways The way list to destroy.
79	++++++++++++++++++++++++++++++++++++++*/
80
81	void DestroyWayList(Ways *ways)
82	{
83	#if !SLIM
84
85	ways->data=UnmapFile(ways->data);
86
87	#else
88
89	ways->fd=SlimUnmapFile(ways->fd);
90
91	DeleteWayCache(ways->cache);
92
93	#endif
94
95	free(ways);
96	}
97
98
99	/*++++++++++++++++++++++++++++++++++++++
100	Return 0 if the two ways are the same (in respect of their types and limits),
101	otherwise return positive or negative to allow sorting.
102
103	int WaysCompare Returns a comparison.
104
105	Way *way1p The first way.
106
107	Way *way2p The second way.
108	++++++++++++++++++++++++++++++++++++++*/
109
110	int WaysCompare(Way way1p,Way way2p)
111	{
112	if(way1p==way2p)
113	return(0);
114
115	if(way1p->type!=way2p->type)
116	return((int)way1p->type - (int)way2p->type);
117
118	if(way1p->allow!=way2p->allow)
119	return((int)way1p->allow - (int)way2p->allow);
120
121	if(way1p->props!=way2p->props)
122	return((int)way1p->props - (int)way2p->props);
123
124	if(way1p->speed!=way2p->speed)
125	return((int)way1p->speed - (int)way2p->speed);
126
127	if(way1p->weight!=way2p->weight)
128	return((int)way1p->weight - (int)way2p->weight);
129
130	if(way1p->height!=way2p->height)
131	return((int)way1p->height - (int)way2p->height);
132
133	if(way1p->width!=way2p->width)
134	return((int)way1p->width - (int)way2p->width);
135
136	if(way1p->length!=way2p->length)
137	return((int)way1p->length - (int)way2p->length);
138
139	return(0);
140	}