-
Notifications
You must be signed in to change notification settings - Fork 2k
/
server.cpp
5509 lines (4751 loc) · 139 KB
/
server.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "server.h"
#include <iostream>
#include <queue>
#include <algorithm>
#include "clientserver.h"
#include "ban.h"
#include "environment.h"
#include "map.h"
#include "jthread/jmutexautolock.h"
#include "main.h"
#include "constants.h"
#include "voxel.h"
#include "config.h"
#include "version.h"
#include "filesys.h"
#include "mapblock.h"
#include "serverobject.h"
#include "genericobject.h"
#include "settings.h"
#include "profiler.h"
#include "log.h"
#include "scripting_game.h"
#include "nodedef.h"
#include "itemdef.h"
#include "craftdef.h"
#include "emerge.h"
#include "mapgen.h"
#include "biome.h"
#include "content_mapnode.h"
#include "content_nodemeta.h"
#include "content_abm.h"
#include "content_sao.h"
#include "mods.h"
#include "sha1.h"
#include "base64.h"
#include "tool.h"
#include "sound.h" // dummySoundManager
#include "event_manager.h"
#include "hex.h"
#include "serverlist.h"
#include "util/string.h"
#include "util/pointedthing.h"
#include "util/mathconstants.h"
#include "rollback.h"
#include "util/serialize.h"
#include "util/thread.h"
#include "defaultsettings.h"
class ClientNotFoundException : public BaseException
{
public:
ClientNotFoundException(const char *s):
BaseException(s)
{}
};
class ServerThread : public SimpleThread
{
Server *m_server;
public:
ServerThread(Server *server):
SimpleThread(),
m_server(server)
{
}
void * Thread();
};
void * ServerThread::Thread()
{
ThreadStarted();
log_register_thread("ServerThread");
DSTACK(__FUNCTION_NAME);
BEGIN_DEBUG_EXCEPTION_HANDLER
while(getRun())
{
try{
//TimeTaker timer("AsyncRunStep() + Receive()");
{
//TimeTaker timer("AsyncRunStep()");
m_server->AsyncRunStep();
}
//infostream<<"Running m_server->Receive()"<<std::endl;
m_server->Receive();
}
catch(con::NoIncomingDataException &e)
{
}
catch(con::PeerNotFoundException &e)
{
infostream<<"Server: PeerNotFoundException"<<std::endl;
}
catch(ClientNotFoundException &e)
{
}
catch(con::ConnectionBindFailed &e)
{
m_server->setAsyncFatalError(e.what());
}
catch(LuaError &e)
{
m_server->setAsyncFatalError(e.what());
}
}
END_DEBUG_EXCEPTION_HANDLER(errorstream)
return NULL;
}
v3f ServerSoundParams::getPos(ServerEnvironment *env, bool *pos_exists) const
{
if(pos_exists) *pos_exists = false;
switch(type){
case SSP_LOCAL:
return v3f(0,0,0);
case SSP_POSITIONAL:
if(pos_exists) *pos_exists = true;
return pos;
case SSP_OBJECT: {
if(object == 0)
return v3f(0,0,0);
ServerActiveObject *sao = env->getActiveObject(object);
if(!sao)
return v3f(0,0,0);
if(pos_exists) *pos_exists = true;
return sao->getBasePosition(); }
}
return v3f(0,0,0);
}
void RemoteClient::GetNextBlocks(Server *server, float dtime,
std::vector<PrioritySortedBlockTransfer> &dest)
{
DSTACK(__FUNCTION_NAME);
/*u32 timer_result;
TimeTaker timer("RemoteClient::GetNextBlocks", &timer_result);*/
// Increment timers
m_nothing_to_send_pause_timer -= dtime;
m_nearest_unsent_reset_timer += dtime;
if(m_nothing_to_send_pause_timer >= 0)
return;
Player *player = server->m_env->getPlayer(peer_id);
// This can happen sometimes; clients and players are not in perfect sync.
if(player == NULL)
return;
// Won't send anything if already sending
if(m_blocks_sending.size() >= g_settings->getU16
("max_simultaneous_block_sends_per_client"))
{
//infostream<<"Not sending any blocks, Queue full."<<std::endl;
return;
}
//TimeTaker timer("RemoteClient::GetNextBlocks");
v3f playerpos = player->getPosition();
v3f playerspeed = player->getSpeed();
v3f playerspeeddir(0,0,0);
if(playerspeed.getLength() > 1.0*BS)
playerspeeddir = playerspeed / playerspeed.getLength();
// Predict to next block
v3f playerpos_predicted = playerpos + playerspeeddir*MAP_BLOCKSIZE*BS;
v3s16 center_nodepos = floatToInt(playerpos_predicted, BS);
v3s16 center = getNodeBlockPos(center_nodepos);
// Camera position and direction
v3f camera_pos = player->getEyePosition();
v3f camera_dir = v3f(0,0,1);
camera_dir.rotateYZBy(player->getPitch());
camera_dir.rotateXZBy(player->getYaw());
/*infostream<<"camera_dir=("<<camera_dir.X<<","<<camera_dir.Y<<","
<<camera_dir.Z<<")"<<std::endl;*/
/*
Get the starting value of the block finder radius.
*/
if(m_last_center != center)
{
m_nearest_unsent_d = 0;
m_last_center = center;
}
/*infostream<<"m_nearest_unsent_reset_timer="
<<m_nearest_unsent_reset_timer<<std::endl;*/
// Reset periodically to workaround for some bugs or stuff
if(m_nearest_unsent_reset_timer > 20.0)
{
m_nearest_unsent_reset_timer = 0;
m_nearest_unsent_d = 0;
//infostream<<"Resetting m_nearest_unsent_d for "
// <<server->getPlayerName(peer_id)<<std::endl;
}
//s16 last_nearest_unsent_d = m_nearest_unsent_d;
s16 d_start = m_nearest_unsent_d;
//infostream<<"d_start="<<d_start<<std::endl;
u16 max_simul_sends_setting = g_settings->getU16
("max_simultaneous_block_sends_per_client");
u16 max_simul_sends_usually = max_simul_sends_setting;
/*
Check the time from last addNode/removeNode.
Decrease send rate if player is building stuff.
*/
m_time_from_building += dtime;
if(m_time_from_building < g_settings->getFloat(
"full_block_send_enable_min_time_from_building"))
{
max_simul_sends_usually
= LIMITED_MAX_SIMULTANEOUS_BLOCK_SENDS;
}
/*
Number of blocks sending + number of blocks selected for sending
*/
u32 num_blocks_selected = m_blocks_sending.size();
/*
next time d will be continued from the d from which the nearest
unsent block was found this time.
This is because not necessarily any of the blocks found this
time are actually sent.
*/
s32 new_nearest_unsent_d = -1;
s16 d_max = g_settings->getS16("max_block_send_distance");
s16 d_max_gen = g_settings->getS16("max_block_generate_distance");
// Don't loop very much at a time
s16 max_d_increment_at_time = 2;
if(d_max > d_start + max_d_increment_at_time)
d_max = d_start + max_d_increment_at_time;
/*if(d_max_gen > d_start+2)
d_max_gen = d_start+2;*/
//infostream<<"Starting from "<<d_start<<std::endl;
s32 nearest_emerged_d = -1;
s32 nearest_emergefull_d = -1;
s32 nearest_sent_d = -1;
bool queue_is_full = false;
s16 d;
for(d = d_start; d <= d_max; d++)
{
/*errorstream<<"checking d="<<d<<" for "
<<server->getPlayerName(peer_id)<<std::endl;*/
//infostream<<"RemoteClient::SendBlocks(): d="<<d<<std::endl;
/*
If m_nearest_unsent_d was changed by the EmergeThread
(it can change it to 0 through SetBlockNotSent),
update our d to it.
Else update m_nearest_unsent_d
*/
/*if(m_nearest_unsent_d != last_nearest_unsent_d)
{
d = m_nearest_unsent_d;
last_nearest_unsent_d = m_nearest_unsent_d;
}*/
/*
Get the border/face dot coordinates of a "d-radiused"
box
*/
std::list<v3s16> list;
getFacePositions(list, d);
std::list<v3s16>::iterator li;
for(li=list.begin(); li!=list.end(); ++li)
{
v3s16 p = *li + center;
/*
Send throttling
- Don't allow too many simultaneous transfers
- EXCEPT when the blocks are very close
Also, don't send blocks that are already flying.
*/
// Start with the usual maximum
u16 max_simul_dynamic = max_simul_sends_usually;
// If block is very close, allow full maximum
if(d <= BLOCK_SEND_DISABLE_LIMITS_MAX_D)
max_simul_dynamic = max_simul_sends_setting;
// Don't select too many blocks for sending
if(num_blocks_selected >= max_simul_dynamic)
{
queue_is_full = true;
goto queue_full_break;
}
// Don't send blocks that are currently being transferred
if(m_blocks_sending.find(p) != m_blocks_sending.end())
continue;
/*
Do not go over-limit
*/
if(p.X < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
|| p.X > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
|| p.Y < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
|| p.Y > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
|| p.Z < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE
|| p.Z > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE)
continue;
// If this is true, inexistent block will be made from scratch
bool generate = d <= d_max_gen;
{
/*// Limit the generating area vertically to 2/3
if(abs(p.Y - center.Y) > d_max_gen - d_max_gen / 3)
generate = false;*/
// Limit the send area vertically to 1/2
if(abs(p.Y - center.Y) > d_max / 2)
continue;
}
#if 0
/*
If block is far away, don't generate it unless it is
near ground level.
*/
if(d >= 4)
{
#if 1
// Block center y in nodes
f32 y = (f32)(p.Y * MAP_BLOCKSIZE + MAP_BLOCKSIZE/2);
// Don't generate if it's very high or very low
if(y < -64 || y > 64)
generate = false;
#endif
#if 0
v2s16 p2d_nodes_center(
MAP_BLOCKSIZE*p.X,
MAP_BLOCKSIZE*p.Z);
// Get ground height in nodes
s16 gh = server->m_env->getServerMap().findGroundLevel(
p2d_nodes_center);
// If differs a lot, don't generate
if(fabs(gh - y) > MAP_BLOCKSIZE*2)
generate = false;
// Actually, don't even send it
//continue;
#endif
}
#endif
//infostream<<"d="<<d<<std::endl;
#if 1
/*
Don't generate or send if not in sight
FIXME This only works if the client uses a small enough
FOV setting. The default of 72 degrees is fine.
*/
float camera_fov = (72.0*M_PI/180) * 4./3.;
if(isBlockInSight(p, camera_pos, camera_dir, camera_fov, 10000*BS) == false)
{
continue;
}
#endif
/*
Don't send already sent blocks
*/
{
if(m_blocks_sent.find(p) != m_blocks_sent.end())
{
continue;
}
}
/*
Check if map has this block
*/
MapBlock *block = server->m_env->getMap().getBlockNoCreateNoEx(p);
bool surely_not_found_on_disk = false;
bool block_is_invalid = false;
if(block != NULL)
{
// Reset usage timer, this block will be of use in the future.
block->resetUsageTimer();
// Block is dummy if data doesn't exist.
// It means it has been not found from disk and not generated
if(block->isDummy())
{
surely_not_found_on_disk = true;
}
// Block is valid if lighting is up-to-date and data exists
if(block->isValid() == false)
{
block_is_invalid = true;
}
/*if(block->isFullyGenerated() == false)
{
block_is_invalid = true;
}*/
#if 0
v2s16 p2d(p.X, p.Z);
ServerMap *map = (ServerMap*)(&server->m_env->getMap());
v2s16 chunkpos = map->sector_to_chunk(p2d);
if(map->chunkNonVolatile(chunkpos) == false)
block_is_invalid = true;
#endif
if(block->isGenerated() == false)
block_is_invalid = true;
#if 1
/*
If block is not close, don't send it unless it is near
ground level.
Block is near ground level if night-time mesh
differs from day-time mesh.
*/
if(d >= 4)
{
if(block->getDayNightDiff() == false)
continue;
}
#endif
}
/*
If block has been marked to not exist on disk (dummy)
and generating new ones is not wanted, skip block.
*/
if(generate == false && surely_not_found_on_disk == true)
{
// get next one.
continue;
}
/*
Add inexistent block to emerge queue.
*/
if(block == NULL || surely_not_found_on_disk || block_is_invalid)
{
/* //TODO: Get value from somewhere
// Allow only one block in emerge queue
//if(server->m_emerge_queue.peerItemCount(peer_id) < 1)
// Allow two blocks in queue per client
//if(server->m_emerge_queue.peerItemCount(peer_id) < 2)
u32 max_emerge = 5;
// Make it more responsive when needing to generate stuff
if(surely_not_found_on_disk)
max_emerge = 1;
if(server->m_emerge_queue.peerItemCount(peer_id) < max_emerge)
{
//infostream<<"Adding block to emerge queue"<<std::endl;
// Add it to the emerge queue and trigger the thread
u8 flags = 0;
if(generate == false)
flags |= BLOCK_EMERGE_FLAG_FROMDISK;
server->m_emerge_queue.addBlock(peer_id, p, flags);
server->m_emergethread.trigger();
if(nearest_emerged_d == -1)
nearest_emerged_d = d;
} else {
if(nearest_emergefull_d == -1)
nearest_emergefull_d = d;
goto queue_full_break;
}
*/
if (server->m_emerge->enqueueBlockEmerge(peer_id, p, generate)) {
if (nearest_emerged_d == -1)
nearest_emerged_d = d;
} else {
if (nearest_emergefull_d == -1)
nearest_emergefull_d = d;
goto queue_full_break;
}
// get next one.
continue;
}
if(nearest_sent_d == -1)
nearest_sent_d = d;
/*
Add block to send queue
*/
/*errorstream<<"sending from d="<<d<<" to "
<<server->getPlayerName(peer_id)<<std::endl;*/
PrioritySortedBlockTransfer q((float)d, p, peer_id);
dest.push_back(q);
num_blocks_selected += 1;
}
}
queue_full_break:
//infostream<<"Stopped at "<<d<<std::endl;
// If nothing was found for sending and nothing was queued for
// emerging, continue next time browsing from here
if(nearest_emerged_d != -1){
new_nearest_unsent_d = nearest_emerged_d;
} else if(nearest_emergefull_d != -1){
new_nearest_unsent_d = nearest_emergefull_d;
} else {
if(d > g_settings->getS16("max_block_send_distance")){
new_nearest_unsent_d = 0;
m_nothing_to_send_pause_timer = 2.0;
/*infostream<<"GetNextBlocks(): d wrapped around for "
<<server->getPlayerName(peer_id)
<<"; setting to 0 and pausing"<<std::endl;*/
} else {
if(nearest_sent_d != -1)
new_nearest_unsent_d = nearest_sent_d;
else
new_nearest_unsent_d = d;
}
}
if(new_nearest_unsent_d != -1)
m_nearest_unsent_d = new_nearest_unsent_d;
/*timer_result = timer.stop(true);
if(timer_result != 0)
infostream<<"GetNextBlocks timeout: "<<timer_result<<" (!=0)"<<std::endl;*/
}
void RemoteClient::GotBlock(v3s16 p)
{
if(m_blocks_sending.find(p) != m_blocks_sending.end())
m_blocks_sending.erase(p);
else
{
/*infostream<<"RemoteClient::GotBlock(): Didn't find in"
" m_blocks_sending"<<std::endl;*/
m_excess_gotblocks++;
}
m_blocks_sent.insert(p);
}
void RemoteClient::SentBlock(v3s16 p)
{
if(m_blocks_sending.find(p) == m_blocks_sending.end())
m_blocks_sending[p] = 0.0;
else
infostream<<"RemoteClient::SentBlock(): Sent block"
" already in m_blocks_sending"<<std::endl;
}
void RemoteClient::SetBlockNotSent(v3s16 p)
{
m_nearest_unsent_d = 0;
if(m_blocks_sending.find(p) != m_blocks_sending.end())
m_blocks_sending.erase(p);
if(m_blocks_sent.find(p) != m_blocks_sent.end())
m_blocks_sent.erase(p);
}
void RemoteClient::SetBlocksNotSent(std::map<v3s16, MapBlock*> &blocks)
{
m_nearest_unsent_d = 0;
for(std::map<v3s16, MapBlock*>::iterator
i = blocks.begin();
i != blocks.end(); ++i)
{
v3s16 p = i->first;
if(m_blocks_sending.find(p) != m_blocks_sending.end())
m_blocks_sending.erase(p);
if(m_blocks_sent.find(p) != m_blocks_sent.end())
m_blocks_sent.erase(p);
}
}
/*
Server
*/
Server::Server(
const std::string &path_world,
const SubgameSpec &gamespec,
bool simple_singleplayer_mode
):
m_path_world(path_world),
m_gamespec(gamespec),
m_simple_singleplayer_mode(simple_singleplayer_mode),
m_async_fatal_error(""),
m_env(NULL),
m_con(PROTOCOL_ID, 512, CONNECTION_TIMEOUT,
g_settings->getBool("enable_ipv6") && g_settings->getBool("ipv6_server"), this),
m_banmanager(NULL),
m_rollback(NULL),
m_rollback_sink_enabled(true),
m_enable_rollback_recording(false),
m_emerge(NULL),
m_script(NULL),
m_itemdef(createItemDefManager()),
m_nodedef(createNodeDefManager()),
m_craftdef(createCraftDefManager()),
m_event(new EventManager()),
m_thread(NULL),
m_time_of_day_send_timer(0),
m_uptime(0),
m_shutdown_requested(false),
m_ignore_map_edit_events(false),
m_ignore_map_edit_events_peer_id(0)
{
m_liquid_transform_timer = 0.0;
m_liquid_transform_every = 1.0;
m_print_info_timer = 0.0;
m_masterserver_timer = 0.0;
m_objectdata_timer = 0.0;
m_emergethread_trigger_timer = 0.0;
m_savemap_timer = 0.0;
m_env_mutex.Init();
m_con_mutex.Init();
m_step_dtime_mutex.Init();
m_step_dtime = 0.0;
if(path_world == "")
throw ServerError("Supplied empty world path");
if(!gamespec.isValid())
throw ServerError("Supplied invalid gamespec");
infostream<<"Server created for gameid \""<<m_gamespec.id<<"\"";
if(m_simple_singleplayer_mode)
infostream<<" in simple singleplayer mode"<<std::endl;
else
infostream<<std::endl;
infostream<<"- world: "<<m_path_world<<std::endl;
infostream<<"- game: "<<m_gamespec.path<<std::endl;
// Initialize default settings and override defaults with those provided
// by the game
set_default_settings(g_settings);
Settings gamedefaults;
getGameMinetestConfig(gamespec.path, gamedefaults);
override_default_settings(g_settings, &gamedefaults);
// Create server thread
m_thread = new ServerThread(this);
// Create emerge manager
m_emerge = new EmergeManager(this);
// Create ban manager
std::string ban_path = m_path_world+DIR_DELIM+"ipban.txt";
m_banmanager = new BanManager(ban_path);
// Create rollback manager
std::string rollback_path = m_path_world+DIR_DELIM+"rollback.txt";
m_rollback = createRollbackManager(rollback_path, this);
// Create world if it doesn't exist
if(!initializeWorld(m_path_world, m_gamespec.id))
throw ServerError("Failed to initialize world");
ModConfiguration modconf(m_path_world);
m_mods = modconf.getMods();
std::vector<ModSpec> unsatisfied_mods = modconf.getUnsatisfiedMods();
// complain about mods with unsatisfied dependencies
if(!modconf.isConsistent())
{
for(std::vector<ModSpec>::iterator it = unsatisfied_mods.begin();
it != unsatisfied_mods.end(); ++it)
{
ModSpec mod = *it;
errorstream << "mod \"" << mod.name << "\" has unsatisfied dependencies: ";
for(std::set<std::string>::iterator dep_it = mod.unsatisfied_depends.begin();
dep_it != mod.unsatisfied_depends.end(); ++dep_it)
errorstream << " \"" << *dep_it << "\"";
errorstream << std::endl;
}
}
Settings worldmt_settings;
std::string worldmt = m_path_world + DIR_DELIM + "world.mt";
worldmt_settings.readConfigFile(worldmt.c_str());
std::vector<std::string> names = worldmt_settings.getNames();
std::set<std::string> load_mod_names;
for(std::vector<std::string>::iterator it = names.begin();
it != names.end(); ++it)
{
std::string name = *it;
if(name.compare(0,9,"load_mod_")==0 && worldmt_settings.getBool(name))
load_mod_names.insert(name.substr(9));
}
// complain about mods declared to be loaded, but not found
for(std::vector<ModSpec>::iterator it = m_mods.begin();
it != m_mods.end(); ++it)
load_mod_names.erase((*it).name);
for(std::vector<ModSpec>::iterator it = unsatisfied_mods.begin();
it != unsatisfied_mods.end(); ++it)
load_mod_names.erase((*it).name);
if(!load_mod_names.empty())
{
errorstream << "The following mods could not be found:";
for(std::set<std::string>::iterator it = load_mod_names.begin();
it != load_mod_names.end(); ++it)
errorstream << " \"" << (*it) << "\"";
errorstream << std::endl;
}
// Path to builtin.lua
std::string builtinpath = getBuiltinLuaPath() + DIR_DELIM + "builtin.lua";
// Lock environment
JMutexAutoLock envlock(m_env_mutex);
JMutexAutoLock conlock(m_con_mutex);
// Initialize scripting
infostream<<"Server: Initializing Lua"<<std::endl;
m_script = new GameScripting(this);
// Load and run builtin.lua
infostream<<"Server: Loading builtin.lua [\""
<<builtinpath<<"\"]"<<std::endl;
bool success = m_script->loadMod(builtinpath, "__builtin");
if(!success){
errorstream<<"Server: Failed to load and run "
<<builtinpath<<std::endl;
throw ModError("Failed to load and run "+builtinpath);
}
// Print 'em
infostream<<"Server: Loading mods: ";
for(std::vector<ModSpec>::iterator i = m_mods.begin();
i != m_mods.end(); i++){
const ModSpec &mod = *i;
infostream<<mod.name<<" ";
}
infostream<<std::endl;
// Load and run "mod" scripts
for(std::vector<ModSpec>::iterator i = m_mods.begin();
i != m_mods.end(); i++){
const ModSpec &mod = *i;
std::string scriptpath = mod.path + DIR_DELIM + "init.lua";
infostream<<" ["<<padStringRight(mod.name, 12)<<"] [\""
<<scriptpath<<"\"]"<<std::endl;
bool success = m_script->loadMod(scriptpath, mod.name);
if(!success){
errorstream<<"Server: Failed to load and run "
<<scriptpath<<std::endl;
throw ModError("Failed to load and run "+scriptpath);
}
}
// Read Textures and calculate sha1 sums
fillMediaCache();
// Apply item aliases in the node definition manager
m_nodedef->updateAliases(m_itemdef);
// Initialize Environment
ServerMap *servermap = new ServerMap(path_world, this, m_emerge);
m_env = new ServerEnvironment(servermap, m_script, this, m_emerge);
// Run some callbacks after the MG params have been set up but before activation
MapgenParams *mgparams = servermap->getMapgenParams();
m_script->environment_OnMapgenInit(mgparams);
// Initialize mapgens
m_emerge->initMapgens(mgparams);
// Give environment reference to scripting api
m_script->initializeEnvironment(m_env);
// Register us to receive map edit events
servermap->addEventReceiver(this);
// If file exists, load environment metadata
if(fs::PathExists(m_path_world+DIR_DELIM+"env_meta.txt"))
{
infostream<<"Server: Loading environment metadata"<<std::endl;
m_env->loadMeta(m_path_world);
}
// Load players
infostream<<"Server: Loading players"<<std::endl;
m_env->deSerializePlayers(m_path_world);
/*
Add some test ActiveBlockModifiers to environment
*/
add_legacy_abms(m_env, m_nodedef);
m_liquid_transform_every = g_settings->getFloat("liquid_update");
}
Server::~Server()
{
infostream<<"Server destructing"<<std::endl;
/*
Send shutdown message
*/
{
JMutexAutoLock conlock(m_con_mutex);
std::wstring line = L"*** Server shutting down";
/*
Send the message to clients
*/
for(std::map<u16, RemoteClient*>::iterator
i = m_clients.begin();
i != m_clients.end(); ++i)
{
// Get client and check that it is valid
RemoteClient *client = i->second;
assert(client->peer_id == i->first);
if(client->serialization_version == SER_FMT_VER_INVALID)
continue;
try{
SendChatMessage(client->peer_id, line);
}
catch(con::PeerNotFoundException &e)
{}
}
}
{
JMutexAutoLock envlock(m_env_mutex);
JMutexAutoLock conlock(m_con_mutex);
/*
Execute script shutdown hooks
*/
m_script->on_shutdown();
}
{
JMutexAutoLock envlock(m_env_mutex);
/*
Save players
*/
infostream<<"Server: Saving players"<<std::endl;
m_env->serializePlayers(m_path_world);
/*
Save environment metadata
*/
infostream<<"Server: Saving environment metadata"<<std::endl;
m_env->saveMeta(m_path_world);
}
/*
Stop threads
*/
stop();
delete m_thread;
//shutdown all emerge threads first!
delete m_emerge;
/*
Delete clients
*/
{
JMutexAutoLock clientslock(m_con_mutex);
for(std::map<u16, RemoteClient*>::iterator
i = m_clients.begin();
i != m_clients.end(); ++i)
{
// Delete client
delete i->second;
}
}
// Delete things in the reverse order of creation
delete m_env;
delete m_rollback;
delete m_banmanager;
delete m_event;
delete m_itemdef;
delete m_nodedef;
delete m_craftdef;
// Deinitialize scripting
infostream<<"Server: Deinitializing scripting"<<std::endl;
delete m_script;
// Delete detached inventories
{
for(std::map<std::string, Inventory*>::iterator
i = m_detached_inventories.begin();
i != m_detached_inventories.end(); i++){
delete i->second;
}
}
}
void Server::start(unsigned short port)
{
DSTACK(__FUNCTION_NAME);
infostream<<"Starting server on port "<<port<<"..."<<std::endl;
// Stop thread if already running
m_thread->stop();
// Initialize connection
m_con.SetTimeoutMs(30);
m_con.Serve(port);
// Start thread
m_thread->setRun(true);
m_thread->Start();
// ASCII art for the win!
actionstream
<<" .__ __ __ "<<std::endl
<<" _____ |__| ____ _____/ |_ ____ _______/ |_ "<<std::endl
<<" / \\| |/ \\_/ __ \\ __\\/ __ \\ / ___/\\ __\\"<<std::endl
<<"| Y Y \\ | | \\ ___/| | \\ ___/ \\___ \\ | | "<<std::endl
<<"|__|_| /__|___| /\\___ >__| \\___ >____ > |__| "<<std::endl
<<" \\/ \\/ \\/ \\/ \\/ "<<std::endl;
actionstream<<"World at ["<<m_path_world<<"]"<<std::endl;
actionstream<<"Server for gameid=\""<<m_gamespec.id
<<"\" listening on port "<<port<<"."<<std::endl;
}
void Server::stop()
{
DSTACK(__FUNCTION_NAME);
infostream<<"Server: Stopping and waiting threads"<<std::endl;
// Stop threads (set run=false first so both start stopping)
m_thread->setRun(false);
//m_emergethread.setRun(false);
m_thread->stop();