1 |
elmex |
1.1 |
/* |
2 |
|
|
* static char *rcsid_swap_c = |
3 |
|
|
* "$Id$"; |
4 |
|
|
*/ |
5 |
|
|
|
6 |
|
|
/* |
7 |
|
|
CrossFire, A Multiplayer game for X-windows |
8 |
|
|
|
9 |
|
|
Copyright (C) 2002 Mark Wedel & Crossfire Development Team |
10 |
|
|
Copyright (C) 1992 Frank Tore Johansen |
11 |
|
|
|
12 |
|
|
This program is free software; you can redistribute it and/or modify |
13 |
|
|
it under the terms of the GNU General Public License as published by |
14 |
|
|
the Free Software Foundation; either version 2 of the License, or |
15 |
|
|
(at your option) any later version. |
16 |
|
|
|
17 |
|
|
This program is distributed in the hope that it will be useful, |
18 |
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of |
19 |
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
20 |
|
|
GNU General Public License for more details. |
21 |
|
|
|
22 |
|
|
You should have received a copy of the GNU General Public License |
23 |
|
|
along with this program; if not, write to the Free Software |
24 |
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
25 |
|
|
|
26 |
|
|
The author can be reached via e-mail to crossfire-devel@real-time.com |
27 |
|
|
*/ |
28 |
|
|
|
29 |
|
|
#include <global.h> |
30 |
|
|
#ifndef __CEXTRACT__ |
31 |
|
|
#include <sproto.h> |
32 |
|
|
#endif |
33 |
|
|
#include <object.h> |
34 |
|
|
|
35 |
|
|
/* This writes out information on all the temporary maps. It is called by |
36 |
|
|
* swap_map below. |
37 |
|
|
*/ |
38 |
|
|
static void write_map_log(void) |
39 |
|
|
{ |
40 |
|
|
FILE *fp; |
41 |
|
|
mapstruct *map; |
42 |
|
|
char buf[MAX_BUF]; |
43 |
|
|
long current_time=time(NULL); |
44 |
|
|
|
45 |
|
|
sprintf(buf,"%s/temp.maps", settings.localdir); |
46 |
|
|
if (!(fp=fopen(buf,"w"))) { |
47 |
|
|
LOG(llevError,"Could not open %s for writing\n", buf); |
48 |
|
|
return; |
49 |
|
|
} |
50 |
|
|
for (map=first_map; map!=NULL; map=map->next) { |
51 |
|
|
/* If tmpname is null, it is probably a unique player map, |
52 |
|
|
* so don't save information on it. |
53 |
|
|
*/ |
54 |
|
|
if (map->in_memory != MAP_IN_MEMORY && (map->tmpname !=NULL) && |
55 |
|
|
(strncmp(map->path,"/random",7))) { |
56 |
|
|
/* the 0 written out is a leftover from the lock number for |
57 |
|
|
* unique items and second one is from encounter maps. |
58 |
|
|
* Keep using it so that old temp files continue |
59 |
|
|
* to work. |
60 |
|
|
*/ |
61 |
|
|
fprintf(fp,"%s:%s:%ld:0:0:%d:0:%d\n", map->path, map->tmpname, |
62 |
|
|
( |
63 |
|
|
map->reset_time == -1 |
64 |
|
|
? (long unsigned) -1 |
65 |
|
|
: map->reset_time-current_time |
66 |
|
|
), |
67 |
|
|
map->difficulty, |
68 |
|
|
map->darkness); |
69 |
|
|
} |
70 |
|
|
} |
71 |
|
|
fclose(fp); |
72 |
|
|
} |
73 |
|
|
|
74 |
|
|
void read_map_log(void) |
75 |
|
|
{ |
76 |
|
|
FILE *fp; |
77 |
|
|
mapstruct *map; |
78 |
|
|
char buf[MAX_BUF],*cp,*cp1; |
79 |
|
|
int do_los, darkness, lock; |
80 |
|
|
long sec = seconds(); |
81 |
|
|
|
82 |
|
|
|
83 |
|
|
sprintf(buf,"%s/temp.maps", settings.localdir); |
84 |
|
|
if (!(fp=fopen(buf,"r"))) { |
85 |
|
|
LOG(llevDebug,"Could not open %s for reading\n", buf); |
86 |
|
|
return; |
87 |
|
|
} |
88 |
|
|
while (fgets(buf, MAX_BUF, fp)!=NULL) { |
89 |
|
|
map=get_linked_map(); |
90 |
|
|
/* scanf doesn't work all that great on strings, so we break |
91 |
|
|
* out that manually. strdup is used for tmpname, since other |
92 |
|
|
* routines will try to free that pointer. |
93 |
|
|
*/ |
94 |
|
|
cp=strchr(buf,':'); |
95 |
|
|
*cp++='\0'; |
96 |
|
|
strcpy(map->path, buf); |
97 |
|
|
cp1=strchr(cp,':'); |
98 |
|
|
*cp1++='\0'; |
99 |
|
|
map->tmpname=strdup_local(cp); |
100 |
|
|
|
101 |
|
|
/* Lock is left over from the lock items - we just toss it now. |
102 |
|
|
* We use it twice - second one is from encounter, but as we |
103 |
|
|
* don't care about the value, this works fine |
104 |
|
|
*/ |
105 |
|
|
sscanf(cp1,"%d:%d:%d:%hd:%d:%d\n", |
106 |
|
|
&map->reset_time, &lock, |
107 |
|
|
&lock, &map->difficulty, &do_los, |
108 |
|
|
&darkness); |
109 |
|
|
|
110 |
|
|
|
111 |
|
|
map->in_memory=MAP_SWAPPED; |
112 |
|
|
map->darkness=darkness; |
113 |
|
|
|
114 |
|
|
/* When the reset time is saved out, it is adjusted so that |
115 |
|
|
* the current time is subtracted (thus, it is saved as number |
116 |
|
|
* of seconds from current time that it should reset). We need |
117 |
|
|
* to add in the current seconds for this to work right. |
118 |
|
|
* On metalforge, strange behavior was observed with really high |
119 |
|
|
* reset times - I don't know how they got to that state, |
120 |
|
|
* but easy enough to do some sanity checking here. |
121 |
|
|
*/ |
122 |
|
|
map->reset_time += sec; |
123 |
|
|
if (map->reset_time > (sec + MAP_MAXRESET)) |
124 |
|
|
map->reset_time = 0; |
125 |
|
|
|
126 |
|
|
} |
127 |
|
|
fclose(fp); |
128 |
|
|
} |
129 |
|
|
|
130 |
|
|
void swap_map(mapstruct *map) { |
131 |
|
|
player *pl; |
132 |
|
|
|
133 |
|
|
if(map->in_memory != MAP_IN_MEMORY) { |
134 |
|
|
LOG(llevError,"Tried to swap out map which was not in memory.\n"); |
135 |
|
|
return; |
136 |
|
|
} |
137 |
|
|
for(pl=first_player;pl!=NULL;pl=pl->next) |
138 |
|
|
if(pl->ob == NULL || (!(QUERY_FLAG(pl->ob,FLAG_REMOVED)) && pl->ob->map == map)) |
139 |
|
|
break; |
140 |
|
|
|
141 |
|
|
if(pl != NULL) { |
142 |
|
|
LOG(llevDebug,"Wanted to swap out map with player.\n"); |
143 |
|
|
return; |
144 |
|
|
} |
145 |
|
|
remove_all_pets(map); /* Give them a chance to follow */ |
146 |
|
|
|
147 |
|
|
/* Update the reset time. Only do this is STAND_STILL is not set */ |
148 |
|
|
if (!map->fixed_resettime) |
149 |
|
|
set_map_reset_time(map); |
150 |
|
|
|
151 |
|
|
/* If it is immediate reset time, don't bother saving it - just get |
152 |
|
|
* rid of it right away. |
153 |
|
|
*/ |
154 |
|
|
if (map->reset_time <= seconds()) { |
155 |
|
|
LOG(llevDebug,"Resetting map %s.\n",map->path); |
156 |
|
|
/* Lauwenmark : Here we handle the MAPRESET global event */ |
157 |
|
|
execute_global_event(EVENT_MAPRESET, map); |
158 |
|
|
delete_map(map); |
159 |
|
|
return; |
160 |
|
|
} |
161 |
|
|
|
162 |
|
|
if (new_save_map (map, 0) == -1) { |
163 |
|
|
LOG(llevError, "Failed to swap map %s.\n", map->path); |
164 |
|
|
/* need to reset the in_memory flag so that delete map will also |
165 |
|
|
* free the objects with it. |
166 |
|
|
*/ |
167 |
|
|
map->in_memory = MAP_IN_MEMORY; |
168 |
|
|
delete_map(map); |
169 |
|
|
} else { |
170 |
|
|
execute_global_event(EVENT_MAPOUT, map); |
171 |
|
|
free_map(map,1); |
172 |
|
|
} |
173 |
|
|
|
174 |
|
|
if (settings.recycle_tmp_maps == TRUE) |
175 |
|
|
write_map_log(); |
176 |
|
|
} |
177 |
|
|
|
178 |
|
|
void check_active_maps(void) { |
179 |
|
|
mapstruct *map, *next; |
180 |
|
|
|
181 |
|
|
for(map=first_map;map!=NULL;map=next) { |
182 |
|
|
next = map->next; |
183 |
|
|
if(map->in_memory != MAP_IN_MEMORY) |
184 |
|
|
continue; |
185 |
|
|
if(!map->timeout) |
186 |
|
|
continue; |
187 |
|
|
if( --(map->timeout) > 0) |
188 |
|
|
continue; |
189 |
|
|
/* If LWM is set, we only swap maps out when we run out of objects */ |
190 |
|
|
#ifndef MAX_OBJECTS_LWM |
191 |
|
|
swap_map(map); |
192 |
|
|
#endif |
193 |
|
|
} |
194 |
|
|
} |
195 |
|
|
|
196 |
|
|
/* |
197 |
|
|
* map_least_timeout() returns the map with the lowest timeout variable (not 0) |
198 |
|
|
*/ |
199 |
|
|
|
200 |
|
|
mapstruct *map_least_timeout(char *except_level) { |
201 |
|
|
mapstruct *map, *chosen=NULL; |
202 |
|
|
int timeout = MAP_MAXTIMEOUT + 1; |
203 |
|
|
for(map = first_map;map != NULL; map = map->next) |
204 |
|
|
if(map->in_memory == MAP_IN_MEMORY && strcmp (map->path, except_level) && |
205 |
|
|
map->timeout && map->timeout < timeout) |
206 |
|
|
chosen = map, timeout = map->timeout; |
207 |
|
|
return chosen; |
208 |
|
|
} |
209 |
|
|
|
210 |
|
|
/* |
211 |
|
|
* swap_below_max() tries to swap out maps which are still in memory because |
212 |
|
|
* of MAP_TIMEOUT until used objects is below MAX_OBJECTS or there are |
213 |
|
|
* no more maps to swap. |
214 |
|
|
*/ |
215 |
|
|
|
216 |
|
|
void swap_below_max(char *except_level) { |
217 |
|
|
mapstruct *map; |
218 |
|
|
|
219 |
|
|
if(nrofallocobjects - nroffreeobjects < MAX_OBJECTS) |
220 |
|
|
return; |
221 |
|
|
for(;;) { |
222 |
|
|
#ifdef MAX_OBJECTS_LWM |
223 |
|
|
if(nrofallocobjects - nroffreeobjects < MAX_OBJECTS_LWM) |
224 |
|
|
return; |
225 |
|
|
#else |
226 |
|
|
if(nrofallocobjects - nroffreeobjects < MAX_OBJECTS) |
227 |
|
|
return; |
228 |
|
|
#endif |
229 |
|
|
if ((map = map_least_timeout(except_level)) == NULL) |
230 |
|
|
return; |
231 |
|
|
LOG(llevDebug,"Trying to swap out %s before its time.\n", map->path); |
232 |
|
|
map->timeout=0; |
233 |
|
|
swap_map(map); |
234 |
|
|
} |
235 |
|
|
} |
236 |
|
|
|
237 |
|
|
/* |
238 |
|
|
* players_on_map(): will be replaced by map->players when I'm satisfied |
239 |
|
|
* that the variable is always correct. |
240 |
|
|
* If show_all is true, we show everyone. If not, we don't show hidden |
241 |
|
|
* players (dms) |
242 |
|
|
*/ |
243 |
|
|
|
244 |
|
|
int players_on_map(mapstruct *m, int show_all) { |
245 |
|
|
player *pl; |
246 |
|
|
int nr=0; |
247 |
|
|
for(pl=first_player;pl!=NULL;pl=pl->next) |
248 |
|
|
if(pl->ob != NULL && !QUERY_FLAG(pl->ob,FLAG_REMOVED) && pl->ob->map==m && |
249 |
|
|
(show_all || !pl->hidden)) |
250 |
|
|
nr++; |
251 |
|
|
return nr; |
252 |
|
|
} |
253 |
|
|
|
254 |
|
|
/* |
255 |
|
|
* flush_old_maps(): |
256 |
|
|
* Removes tmp-files of maps which are going to be reset next time |
257 |
|
|
* they are visited. |
258 |
|
|
* This is very useful if the tmp-disk is very full. |
259 |
|
|
*/ |
260 |
|
|
void flush_old_maps(void) { |
261 |
|
|
|
262 |
|
|
mapstruct *m, *oldmap; |
263 |
|
|
long sec; |
264 |
|
|
sec = seconds(); |
265 |
|
|
|
266 |
|
|
m= first_map; |
267 |
|
|
while (m) { |
268 |
|
|
/* There can be cases (ie death) where a player leaves a map and the timeout |
269 |
|
|
* is not set so it isn't swapped out. |
270 |
|
|
*/ |
271 |
|
|
if ((m->in_memory == MAP_IN_MEMORY) && (m->timeout==0) && |
272 |
|
|
!players_on_map(m,TRUE)) { |
273 |
|
|
set_map_timeout(m); |
274 |
|
|
} |
275 |
|
|
|
276 |
|
|
/* per player unique maps are never really reset. However, we do want |
277 |
|
|
* to perdiocially remove the entries in the list of active maps - this |
278 |
|
|
* generates a cleaner listing if a player issues the map commands, and |
279 |
|
|
* keeping all those swapped out per player unique maps also has some |
280 |
|
|
* memory and cpu consumption. |
281 |
|
|
* We do the cleanup here because there are lots of places that call |
282 |
|
|
* swap map, and doing it within swap map may cause problems as |
283 |
|
|
* the functions calling it may not expect the map list to change |
284 |
|
|
* underneath them. |
285 |
|
|
*/ |
286 |
|
|
if ((m->unique || m->templatemap) && m->in_memory == MAP_SWAPPED) { |
287 |
|
|
LOG(llevDebug,"Resetting map %s.\n",m->path); |
288 |
|
|
oldmap = m; |
289 |
|
|
m = m->next; |
290 |
|
|
delete_map(oldmap); |
291 |
|
|
} |
292 |
|
|
else if(m->in_memory != MAP_SWAPPED || m->tmpname == NULL || |
293 |
|
|
sec < m->reset_time) { |
294 |
|
|
m = m->next; |
295 |
|
|
} |
296 |
|
|
else { |
297 |
|
|
LOG(llevDebug,"Resetting map %s.\n",m->path); |
298 |
|
|
/* Lauwenmark : Here we handle the MAPRESET global event */ |
299 |
|
|
execute_global_event(EVENT_MAPRESET, m); |
300 |
|
|
clean_tmp_map(m); |
301 |
|
|
oldmap = m; |
302 |
|
|
m = m->next; |
303 |
|
|
delete_map(oldmap); |
304 |
|
|
} |
305 |
|
|
} |
306 |
|
|
} |