summaryrefslogtreecommitdiff
path: root/src/common/malloc.c
blob: 1a4729fa2b0bd62ee655082e4cb5ca871aaae682 (plain) (blame)
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
// Copyright (c) Athena Dev Teams - Licensed under GNU GPL
// For more information, see LICENCE in the main folder

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../common/malloc.h"
#include "../common/core.h"
#include "../common/showmsg.h"

#ifdef MINICORE
	#undef LOG_MEMMGR
#endif

void* aMalloc_(size_t size, const char *file, int line, const char *func)
{
	void *ret = MALLOC(size, file, line, func);
	// ShowMessage("%s:%d: in func %s: aMalloc %d\n",file,line,func,size);
	if (ret == NULL){
		ShowFatalError("%s:%d: in func %s: aMalloc error out of memory!\n",file,line,func);
		exit(1);
	}

	return ret;
}
void* aMallocA_(size_t size, const char *file, int line, const char *func)
{
	void *ret = MALLOCA(size, file, line, func);
	// ShowMessage("%s:%d: in func %s: aMallocA %d\n",file,line,func,size);
	if (ret == NULL){
		ShowFatalError("%s:%d: in func %s: aMallocA error out of memory!\n",file,line,func);
		exit(1);
	}

	return ret;
}
void* aCalloc_(size_t num, size_t size, const char *file, int line, const char *func)
{
	void *ret = CALLOC(num, size, file, line, func);
	// ShowMessage("%s:%d: in func %s: aCalloc %d %d\n",file,line,func,num,size);
	if (ret == NULL){
		ShowFatalError("%s:%d: in func %s: aCalloc error out of memory!\n", file, line, func);
		exit(1);
	}
	return ret;
}
void* aCallocA_(size_t num, size_t size, const char *file, int line, const char *func)
{
	void *ret = CALLOCA(num, size, file, line, func);
	// ShowMessage("%s:%d: in func %s: aCallocA %d %d\n",file,line,func,num,size);
	if (ret == NULL){
		ShowFatalError("%s:%d: in func %s: aCallocA error out of memory!\n",file,line,func);
		exit(1);
	}
	return ret;
}
void* aRealloc_(void *p, size_t size, const char *file, int line, const char *func)
{
	void *ret = REALLOC(p, size, file, line, func);
	// ShowMessage("%s:%d: in func %s: aRealloc %p %d\n",file,line,func,p,size);
	if (ret == NULL){
		ShowFatalError("%s:%d: in func %s: aRealloc error out of memory!\n",file,line,func);
		exit(1);
	}
	return ret;
}
char* aStrdup_(const char *p, const char *file, int line, const char *func)
{
	char *ret = STRDUP(p, file, line, func);
	// ShowMessage("%s:%d: in func %s: aStrdup %p\n",file,line,func,p);
	if (ret == NULL){
		ShowFatalError("%s:%d: in func %s: aStrdup error out of memory!\n", file, line, func);
		exit(1);
	}
	return ret;
}
void aFree_(void *p, const char *file, int line, const char *func)
{
	// ShowMessage("%s:%d: in func %s: aFree %p\n",file,line,func,p);
	if (p)
		FREE(p, file, line, func);

	p = NULL;
}

#ifdef GCOLLECT

void* _bcallocA(size_t size, size_t cnt)
{
	void *ret = MALLOCA(size * cnt);
	if (ret) //malloc_set(ret, 0, size * cnt);
		malloc_set(ret, 0, size*cnt);
	return ret;
}
void* _bcalloc(size_t size, size_t cnt)
{
	void *ret = MALLOC(size * cnt);
	if (ret) //malloc_set(ret, 0, size * cnt);
		malloc_set(ret, 0, size*cnt);
	return ret;
}
char* _bstrdup(const char *chr)
{
	int len = strlen(chr);
	char *ret = (char*)MALLOC(len + 1);
	if (ret) memcpy(ret, chr, len + 1);
	return ret;
}

#endif

#ifdef USE_MEMMGR

/* USE_MEMMGR */

/*
 * �������}�l�[�W��
 *     malloc , free �̏����������I�ɏo����悤�ɂ������́B
 *     ���G�ȏ������s���Ă���̂ŁA�኱�d���Ȃ邩������܂���B
 *
 * �f�[�^�\���Ȃǁi��������ł����܂���^^; �j
 *     �E�������𕡐��́u�u���b�N�v�ɕ����āA����Ƀu���b�N�𕡐��́u���j�b�g�v
 *       �ɕ����Ă��܂��B���j�b�g�̃T�C�Y�́A�P�u���b�N�̗e�ʂ𕡐��‚ɋϓ��z��
 *       �������̂ł��B���Ƃ��΁A�P���j�b�g32KB�̏ꍇ�A�u���b�N�P�‚�32Byte�̃�
 *       �j�b�g���A1024�W�܂��ďo���Ă�����A64Byte�̃��j�b�g�� 512�W�܂���
 *       �o���Ă����肵�܂��B�ipadding,unit_head �������j
 *
 *     �E�u���b�N���m�̓����N���X�g(block_prev,block_next) �ł‚Ȃ���A�����T�C
 *       �Y�����ƒu���b�N���m�������N���X�g(samesize_prev,samesize_nect) �ł‚�
 *       �����Ă��܂��B����ɂ��A�s�v�ƂȂ����������̍ė��p�������I�ɍs���܂��B
 */

/* �u���b�N�ɓ���f�[�^�� */
#define BLOCK_DATA_SIZE	80*1024

/* ��x�Ɋm�ۂ���u���b�N�̐��B */
#define BLOCK_ALLOC		32

/* �u���b�N�̃A���C�����g */
#define BLOCK_ALIGNMENT	64

/* �u���b�N */
struct block {
	int    block_no;		/* �u���b�N�ԍ� */
	struct block* block_prev;		/* �O�Ɋm�ۂ����̈� */
	struct block* block_next;		/* ���Ɋm�ۂ����̈� */
	int    samesize_no;     /* �����T�C�Y�̔ԍ� */
	struct block* samesize_prev;	/* �����T�C�Y�̑O�̗̈� */
	struct block* samesize_next;	/* �����T�C�Y�̎��̗̈� */
	size_t unit_size;		/* ���j�b�g�̃o�C�g�� 0=���g�p */
	size_t unit_hash;		/* ���j�b�g�̃n�b�V�� */
	int    unit_count;		/* ���j�b�g�̐� */
	int    unit_used;		/* �g�p�ς݃��j�b�g */
	char   data[BLOCK_DATA_SIZE];
};

struct unit_head {
	struct block* block;
	size_t size;
	const  char* file;
	int    line;
	unsigned int checksum;
};

struct chunk {
	char *block;
	struct chunk *next;
};

static struct block* block_first  = NULL;
static struct block* block_last   = NULL;
static struct block* block_unused = NULL;

/* ���j�b�g�ւ̃n�b�V���B80KB/64Byte = 1280�� */
static struct block* unit_first[BLOCK_DATA_SIZE/BLOCK_ALIGNMENT];		/* �ŏ� */
static struct block* unit_unfill[BLOCK_DATA_SIZE/BLOCK_ALIGNMENT];	/* ���܂��ĂȂ� */
static struct block* unit_last[BLOCK_DATA_SIZE/BLOCK_ALIGNMENT];		/* �Ō� */

/* ���������g���񂹂Ȃ��̈�p�̃f�[�^ */
struct unit_head_large {
	struct unit_head_large* prev;
	struct unit_head_large* next;
	struct unit_head        unit_head;
};
static struct unit_head_large *unit_head_large_first = NULL;

static struct chunk *chunk_first = NULL;

static struct block* block_malloc(void);
static void   block_free(struct block* p);
static void memmgr_info(void);
static unsigned int memmgr_usage_bytes = 0;

void* _mmalloc(size_t size, const char *file, int line, const char *func ) {
	int i;
	struct block *block;
	size_t size_hash;

	if (((long) size) < 0) {
		printf("_mmalloc: %d\n", size);
		return 0;
	}
	
	size_hash = (size+BLOCK_ALIGNMENT-1) / BLOCK_ALIGNMENT;
	if(size == 0) {
		return NULL;
	}
	memmgr_usage_bytes += size;

	/* �u���b�N���𒴂���̈�̊m�ۂɂ́Amalloc() ��p���� */
	/* ���̍ہAunit_head.block �� NULL �������ċ�ʂ��� */
	if(size_hash * BLOCK_ALIGNMENT > BLOCK_DATA_SIZE - sizeof(struct unit_head)) {
		struct unit_head_large* p = (struct unit_head_large*)MALLOC(sizeof(struct unit_head_large)+size,file,line,func);
		if(p != NULL) {
			p->unit_head.block = NULL;
			p->unit_head.size  = size;
			p->unit_head.file  = file;
			p->unit_head.line  = line;
			p->prev = NULL;
			if (unit_head_large_first == NULL)
				p->next = NULL;
			else {
				unit_head_large_first->prev = p;
				p->next = unit_head_large_first;
			}
			unit_head_large_first = p;
			*(int*)((char*)p + sizeof(struct unit_head_large) - sizeof(int) + size) = 0xdeadbeaf;
			return (char *)p + sizeof(struct unit_head_large) - sizeof(int);
		} else {
			ShowFatalError("Memory manager::memmgr_alloc failed (allocating %d+%d bytes at %s:%d).\n", sizeof(struct unit_head_large), size, file, line);
			exit(1);
		}
	}

	/* ����T�C�Y�̃u���b�N���m�ۂ���Ă��Ȃ����A�V���Ɋm�ۂ��� */
	if(unit_unfill[size_hash] == NULL) {
		block = block_malloc();
		if(unit_first[size_hash] == NULL) {
			/* ����m�� */
			unit_first[size_hash] = block;
			unit_last[size_hash] = block;
			block->samesize_no = 0;
			block->samesize_prev = NULL;
			block->samesize_next = NULL;
		} else {
			/* �A����� */
			unit_last[size_hash]->samesize_next = block;
			block->samesize_no   = unit_last[size_hash]->samesize_no + 1;
			block->samesize_prev = unit_last[size_hash];
			block->samesize_next = NULL;
			unit_last[size_hash] = block;
		}
		unit_unfill[size_hash] = block;
		block->unit_size  = size_hash * BLOCK_ALIGNMENT + sizeof(struct unit_head);
		block->unit_count = (int)(BLOCK_DATA_SIZE / block->unit_size);
		block->unit_used  = 0;
		block->unit_hash  = size_hash;
		/* ���g�pFlag�𗧂Ă� */
		for(i=0;i<block->unit_count;i++) {
			((struct unit_head*)(&block->data[block->unit_size * i]))->block = NULL;
		}
	}
	/* ���j�b�g�g�p�����Z */
	block = unit_unfill[size_hash];
	block->unit_used++;

	/* ���j�b�g����S�Ďg���ʂ����� */
	if(block->unit_count == block->unit_used) {
		do {
			unit_unfill[size_hash] = unit_unfill[size_hash]->samesize_next;
		} while(
			unit_unfill[size_hash] != NULL &&
			unit_unfill[size_hash]->unit_count == unit_unfill[size_hash]->unit_used
		);
	}

	/* �u���b�N�̒��̋󂫃��j�b�g�{�� */
	for(i=0;i<block->unit_count;i++) {
		struct unit_head *head = (struct unit_head*)(&block->data[block->unit_size * i]);
		if(head->block == NULL) {
			head->block = block;
			head->size  = size;
			head->line  = line;
			head->file  = file;
			*(int*)((char*)head + sizeof(struct unit_head) - sizeof(int) + size) = 0xdeadbeaf;
			return (char *)head + sizeof(struct unit_head) - sizeof(int);
		}
	}
	// �����ɗ��Ă͂����Ȃ��B
	ShowFatalError("Memory manager::memmgr_malloc() serious error (allocating %d+%d bytes at %s:%d)\n", sizeof(struct unit_head_large), size, file, line);
	memmgr_info();
	exit(1);
	return NULL;
};

void* _mcalloc(size_t num, size_t size, const char *file, int line, const char *func ) {
	void *p = _mmalloc(num * size,file,line,func);
	//malloc_set(p,0,num * size);
	malloc_set(p,0,num*size);
	return p;
}

void* _mrealloc(void *memblock, size_t size, const char *file, int line, const char *func ) {
	size_t old_size;
	if(memblock == NULL) {
		return _mmalloc(size,file,line,func);
	}

	old_size = ((struct unit_head *)((char *)memblock - sizeof(struct unit_head) + sizeof(int)))->size;
	if(old_size > size) {
		// �T�C�Y�k�� -> ���̂܂ܕԂ��i�蔲���j
		return memblock;
	}  else {
		// �T�C�Y�g��
		void *p = _mmalloc(size,file,line,func);
		if(p != NULL) {
			memcpy(p,memblock,old_size);
		}
		_mfree(memblock,file,line,func);
		return p;
	}
}

char* _mstrdup(const char *p, const char *file, int line, const char *func ) {
	if(p == NULL) {
		return NULL;
	} else {
		size_t len = strlen(p);
		char *string  = (char *)_mmalloc(len + 1,file,line,func);
		memcpy(string,p,len+1);
		return string;
	}
}

void _mfree(void *ptr, const char *file, int line, const char *func ) {
	struct unit_head *head;
	size_t size_hash;

	if (ptr == NULL)
		return; 

	head = (struct unit_head *)((char *)ptr - sizeof(struct unit_head) + sizeof(int));
	size_hash = (head->size+BLOCK_ALIGNMENT-1) / BLOCK_ALIGNMENT;

	if(head->block == NULL) {
		if(size_hash * BLOCK_ALIGNMENT > BLOCK_DATA_SIZE - sizeof(struct unit_head)) {
			/* malloc() �Œ��Ɋm�ۂ��ꂽ�̈� */
			struct unit_head_large *head_large = (struct unit_head_large *)((char *)ptr - sizeof(struct unit_head_large) + sizeof(int));
			if(
				*(int*)((char*)head_large + sizeof(struct unit_head_large) - sizeof(int) + head->size)
				!= 0xdeadbeaf)
			{
				ShowError("Memory manager: args of aFree is overflowed pointer %s line %d\n", file, line);
			}
			if(head_large->prev) {
				head_large->prev->next = head_large->next;
			} else {
				unit_head_large_first  = head_large->next;
			}
			if(head_large->next) {
				head_large->next->prev = head_large->prev;
			}
			head->block = NULL;
			memmgr_usage_bytes -= head->size;
			FREE(head_large,file,line,func);
		} else {
			ShowError("Memory manager: args of aFree is freed pointer %s:%d@%s\n", file, line, func);
		}
		ptr = NULL;
		return;
	} else {
		/* ���j�b�g��� */
		struct block *block = head->block;
		if((unsigned long)block % sizeof(struct block) != 0) {
			ShowError("Memory manager: args of aFree is not valid pointer %s line %d\n", file, line);
		} else if(*(int*)((char*)head + sizeof(struct unit_head) - sizeof(int) + head->size) != 0xdeadbeaf) {
			ShowError("Memory manager: args of aFree is overflowed pointer %s line %d\n", file, line);
		} else {
			head->block = NULL;
			memmgr_usage_bytes -= head->size;
			if(--block->unit_used == 0) {
				/* �u���b�N�̉�� */
				if(unit_unfill[block->unit_hash] == block) {
					/* �󂫃��j�b�g�Ɏw�肳��Ă��� */
					do {
						unit_unfill[block->unit_hash] = unit_unfill[block->unit_hash]->samesize_next;
					} while(
						unit_unfill[block->unit_hash] != NULL &&
						unit_unfill[block->unit_hash]->unit_count == unit_unfill[block->unit_hash]->unit_used
					);
				}
				if(block->samesize_prev == NULL && block->samesize_next == NULL) {
					/* �Ɨ��u���b�N�̉�� */
					unit_first[block->unit_hash]  = NULL;
					unit_last[block->unit_hash]   = NULL;
					unit_unfill[block->unit_hash] = NULL;
				} else if(block->samesize_prev == NULL) {
					/* �擪�u���b�N�̉�� */
					unit_first[block->unit_hash] = block->samesize_next;
					(block->samesize_next)->samesize_prev = NULL;
				} else if(block->samesize_next == NULL) {
					/* ���[�u���b�N�̉�� */
					unit_last[block->unit_hash] = block->samesize_prev; 
					(block->samesize_prev)->samesize_next = NULL;
				} else {
					/* ���ԃu���b�N�̉�� */
					(block->samesize_next)->samesize_prev = block->samesize_prev;
					(block->samesize_prev)->samesize_next = block->samesize_next;
				}
				block_free(block);
			} else {
				/* �󂫃��j�b�g�̍Đݒ� */
				if(
					unit_unfill[block->unit_hash] == NULL ||
					unit_unfill[block->unit_hash]->samesize_no > block->samesize_no
				) {
					unit_unfill[block->unit_hash] = block;
				}
			}
			ptr = NULL;
		}
	}
}

/* ���݂̏󋵂�\������ */
static void memmgr_info(void) {
	int i;
	struct block *p;
	ShowInfo("** Memory Manager Information **\n");
	if(block_first == NULL) {
		ShowMessage("Uninitialized.\n");
		return;
	}
	ShowMessage(
		"Blocks: %04u , BlockSize: %06u Byte , Used: %08uKB\n",
		block_last->block_no+1,sizeof(struct block),
		(block_last->block_no+1) * sizeof(struct block) / 1024
	);
	p = block_first;
	for(i=0;i<=block_last->block_no;i++) {
		ShowMessage("    Block #%04u : ",p->block_no);
		if(p->unit_size == 0) {
			ShowMessage("unused.\n");
		} else {
			ShowMessage(
				"size: %05u byte. used: %04u/%04u prev:",
				p->unit_size - sizeof(struct unit_head),p->unit_used,p->unit_count
			);
			if(p->samesize_prev == NULL) {
				ShowMessage("NULL");
			} else {
				ShowMessage("%04u",(p->samesize_prev)->block_no);
			}
			ShowMessage(" next:");
			if(p->samesize_next == NULL) {
				ShowMessage("NULL");
			} else {
				ShowMessage("%04u",(p->samesize_next)->block_no);
			}
			ShowMessage("\n");
		}
		p = p->block_next;
	}
}

/* �u���b�N���m�ۂ��� */
static struct block* block_malloc(void) {
	if(block_unused != NULL) {
		/* �u���b�N�p�̗̈�͊m�ۍς� */
		struct block* ret = block_unused;
		do {
			block_unused = block_unused->block_next;
		} while(block_unused != NULL && block_unused->unit_size != 0);
		return ret;
	} else {
		/* �u���b�N�p�̗̈��V���Ɋm�ۂ��� */
		int i;
		int block_no;
		struct block* p;
		struct chunk* chunk;
		char *pb = (char *)CALLOC(sizeof(struct block),BLOCK_ALLOC+1,file,line,func);
		if(pb == NULL) {
			ShowFatalError("Memory manager::block_alloc failed.\n");
			exit(1);
		}

		// store original block address in chunk
		chunk = (struct chunk *)MALLOC(sizeof(struct chunk),file,line,func);
		if (chunk == NULL) {
			ShowFatalError("Memory manager::block_alloc failed.\n");
			exit(1);
		}
		chunk->block = pb;
		chunk->next = (chunk_first) ? chunk_first : NULL;
		chunk_first = chunk;

		// �u���b�N�̃|�C���^�̐擪��sizeof(block) �A���C�����g�ɑ�����
		// ���̃A�h���X��free() ���邱�Ƃ͂Ȃ��̂ŁA���ڃ|�C���^��ύX���Ă���B
		pb += sizeof(struct block) - ((unsigned long)pb % sizeof(struct block));
		p   = (struct block*)pb;
		if(block_first == NULL) {
			/* ����m�� */
			block_no     = 0;
			block_first  = p;
		} else {
			block_no      = block_last->block_no + 1;
			block_last->block_next = p;
			p->block_prev = block_last;
		}
		block_last = &p[BLOCK_ALLOC - 1];
		/* �u���b�N��A�������� */
		for(i=0;i<BLOCK_ALLOC;i++) {
			if(i != 0) {
				p[i].block_prev = &p[i-1];
			}
			if(i != BLOCK_ALLOC -1) {
				p[i].block_next = &p[i+1];
			}
			p[i].block_no = block_no + i;
		}

		/* ���g�p�u���b�N�ւ̃|�C���^���X�V */
		block_unused = &p[1];
		p->unit_size = 1;
		return p;
	}
}

static void block_free(struct block* p) {
	/* free() �����ɁA���g�p�t���O��t���邾�� */
	p->unit_size = 0;
	/* ���g�p�|�C���^�[���X�V���� */
	if(block_unused == NULL) {
		block_unused = p;
	} else if(block_unused->block_no > p->block_no) {
		block_unused = p;
	}
}

unsigned int memmgr_usage (void)
{
	return memmgr_usage_bytes / 1024;
}

#ifdef LOG_MEMMGR
static char memmer_logfile[128];
static FILE *log_fp;

static void memmgr_log (char *buf)
{
	if (!log_fp) {
		log_fp = fopen(memmer_logfile,"w");
		if (!log_fp) log_fp = stdout;
		fprintf(log_fp, "Memory manager: Memory leaks found (Revision %s).\n", get_svn_revision());
	}
	fprintf(log_fp, buf);
	return;
}
#endif

static void memmgr_final (void)
{
	struct block *block = block_first;
	struct chunk *chunk = chunk_first, *chunk2;
	struct unit_head_large *large = unit_head_large_first, *large2;
	int i;

#ifdef LOG_MEMMGR
	int count = 0;
	char buf[128];
#endif
	
	while (block) {
		if (block->unit_size) {
			for (i = 0; i < block->unit_count; i++) {
				struct unit_head *head = (struct unit_head*)(&block->data[block->unit_size * i]);
				if(head->block != NULL)
				{
				#ifdef LOG_MEMMGR
					sprintf (buf,
						"%04d : %s line %d size %d\n", ++count,
						head->file, head->line, head->size);
					memmgr_log (buf);
				#endif
					// get block pointer and free it [celest]
					_mfree ((char *)head + sizeof(struct unit_head) - sizeof(int), ALC_MARK);
				}
			}
		}
		//if (block->block_no >= block2->block_no + BLOCK_ALLOC - 1) {
			// reached a new block array
			//block = block->block_next;

		/* Okay wise guys... this is how block2 was allocated: [Skotlex]
		struct block* p;
		char *pb = (char *) CALLOC (sizeof(struct block),BLOCK_ALLOC + 1);
		pb += sizeof(struct block) - ((unsigned long)pb % sizeof(struct block));
		p   = (struct block*)pb;
		
		The reason we get an invalid pointer is that we allocated pb, not p.
		So how do you get pb when you only have p? 
		The answer is, you can't, because the original pointer was lost when
		memory-aligning the block. So we either forget this FREE or use a
		self-reference...
		Since we are already quitting, it might be ok to just not free the block
		as it is. 
		 */
		// didn't realise that before o.o -- block chunks are now freed below [celest]
		//	FREE(block2);
			//block2 = block;
			//continue;
		//}
		block = block->block_next;
	}

	// free the allocated block chunks
	chunk = chunk_first;
	while (chunk) {
		chunk2 = chunk->next;
		FREE(chunk->block,file,line,func);
		FREE(chunk,file,line,func);
		chunk = chunk2;
	}

	while(large) {
		large2 = large->next;
	#ifdef LOG_MEMMGR
		sprintf (buf,
			"%04d : %s line %d size %d\n", ++count,
			large->unit_head.file, large->unit_head.line, large->unit_head.size);
		memmgr_log (buf);
	#endif
		FREE(large,file,line,func);
		large = large2;
	}
#ifdef LOG_MEMMGR
	if(count == 0) {
		ShowInfo("Memory manager: No memory leaks found.\n");
	} else {
		ShowWarning("Memory manager: Memory leaks found and fixed.\n");
		fclose(log_fp);
	}
#endif
	return;
}

static void memmgr_init (void)
{
	#ifdef LOG_MEMMGR
		sprintf(memmer_logfile, "log/%s.leaks", SERVER_NAME);
		ShowStatus("Memory manager initialised: "CL_WHITE"%s"CL_RESET"\n", memmer_logfile);
	#endif
	return;
}
#endif

#if defined(MEMSET_TURBO) && defined(_WIN32)
	void malloc_set(void *dest, int value, int count){
		_asm
			{
				mov eax, value
				mov ecx, count
				mov ebx, ecx
				mov edi, dest
				shr ecx, 2
				test ecx, ecx
				jz ByteOp
				shl ecx, 2
				sub ebx, ecx
				shr ecx, 2
				rep stosd
				test ebx, ebx
				jz Done
				ByteOp:
				mov ecx, ebx
				rep stosb
				Done:
			}
	}
	// Sets 32-bit aligned memory.
	void malloc_tsetdword(void *dest, int value, int count){
		_asm
			{
				mov edi, dest
				mov ecx, count
				shr ecx, 2
				mov eax, value
				rep stosd
			}
	}

	// Sets 16-bit aligned memory.
	void malloc_tsetword(void *dest, short value, int count){
		_asm
			{
				mov edi, dest
				mov ecx, count
				shr ecx, 1
				mov ax, value
				rep stosw
			}
	}
#endif

/*======================================
 * Initialise
 *--------------------------------------
 */

unsigned int malloc_usage (void)
{
#ifdef USE_MEMMGR
	return memmgr_usage ();
#else
	return 0;
#endif
}

void malloc_final (void)
{
#ifdef USE_MEMMGR
	memmgr_final ();
#endif
	return;
}

void malloc_init (void)
{
#ifdef USE_MEMMGR
	memmgr_init ();
#endif
	return;
}