2 \brief IR Memory Implementation
3 \details Intermediary memory management
6 ----------------------------------------------------------------------------*/
8 #include <stdlib.h> //exit, malloc
9 #include <stdio.h> //print
10 #include <stdarg.h> //va_args
11 #include <stdint.h> //uint64_t
12 #include <string.h> //memset, str*
14 #include <unistd.h> //u8_* functions
15 #include <unitypes.h> //uint8_t as a char
16 #include <unistr.h> //u32_cpy
24 int ir_condenser(void);
25 /* Memory allocation structures */
26 enum dtype
{ FSDAT
, MSDAT
, ADAT
, LDAT
, FBDAT
};
28 struct pagenode_header_t
{
29 struct pagenode_t
* next
;
33 struct pagenode_header_t header
;
37 struct pagenode_t
* root
, * head
;
42 { struct ir_namelist_t
* nextsib
;
46 { struct ir_class_t
* root_class
;
47 struct ir_namelist_t
* namelist
, * namelist_head
;
50 { struct ir_classld_t
* classld
;
52 struct ir_namelist_t
* namelist
, * namelist_head
;
55 struct ir_setdata_header_t
57 uint8_t* src_filename
, * data_name
;
58 union ir_setdata_t
* nextsib
;
61 { int facing
, w
, h
; };
63 { struct ir_setdata_header_t header
;
64 struct ir_frameinfo_t frameinfo
;
67 { struct ir_setdata_header_t header
;
68 struct ir_framedata_t framesheets
[FACING_MAX
];
69 struct ir_framedata_t mapsheets
[FACING_MAX
];
71 struct ir_simplex_t
{ struct ir_setdata_header_t header
; };
73 { struct ir_setdata_header_t header
;
74 struct ir_classld_t
* classld
;
75 struct ir_setld_t
* setld
;
79 { struct ir_setdata_header_t header
;
80 struct ir_framebox_t framebox
;
81 struct ir_framedata_t framesheet
;
82 struct ir_framedata_t mapsheet
;
83 struct ir_simplex_t audio
;
84 struct ir_link_t link
;
87 { struct ir_class_t
* nextchild
, * nextsib
;
88 struct ir_set_t
* root_set
;
92 { struct ir_set_t
* nextchild
, * nextsib
;
93 struct ir_class_t
* class;
96 struct ir_framebox_t
* frameboxes
;
97 struct ir_simplex_t
* audio
;
98 struct ir_link_t
* links
;
102 int init_pagelist(struct pagelist_t
*,size_t);
104 struct ir_framebox_t
* ir_set_add_framebox(struct ir_set_t
*,const uint8_t*);
106 void ir_free_pagenodes(struct pagenode_t
*);
108 int bytes_identical(const uint8_t*,const uint8_t*);
110 void* stack_alloc(size_t);
112 uint8_t* name_alloc(const uint8_t*);
114 union ir_setdata_t
* ir_framedata (enum dtype
,const uint8_t*,apc_facing
,int,int);
115 /* Function-Like Macros */
116 #define do_warn() do { \
118 #define wprint(str) do { \
119 fprintf(stderr, str); \
122 #define wprintf(fmt,...) do { \
123 fprintf(stderr, fmt, __VA_ARGS__); \
126 #define do_error() do { \
129 #define eprint(str) do { \
130 fprintf(stderr, str); \
133 #define eprintf(fmt,...) do { \
134 fprintf(stderr, fmt, __VA_ARGS__); \
137 #define struct_alloc(_T) ((struct _T*) stack_alloc(sizeof(struct _T)))
138 #define DATA_PAGESIZE (sys_pagesize)
139 #define NAME_PAGESIZE (APC_NAME_MAX * 1024)
140 #define PL_HEADERSIZE (sizeof(struct pagenode_header_t))
141 #define PL_HEADSIZE(_PL) (_PL.head->header.head - _PL.head->root)
142 #define PL_HEADMEM(_PL) (_PL.pagesize - PL_HEADERSIZE - PL_HEADSIZE(_PL))
147 struct pagelist_t datapages
, namepages
;
149 struct ir_class_t root_class
= { .name
= (uint8_t*)"." };
154 { if (init_pagelist(&datapages
, (size_t)DATA_PAGESIZE
))
155 eprint("Memory allocation error\n");
156 if (init_pagelist(&namepages
, (size_t)NAME_PAGESIZE
))
157 eprint("Memory allocation error\n");
163 ( struct pagelist_t
* pl
,
166 { pl
->pagesize
= size
;
167 pl
->root
= (struct pagenode_t
*) calloc(size
,1);
168 if (pl
->root
== NULL
)
170 pl
->root
->header
.head
= pl
->root
->root
;
176 Recursively clean pagenode linked list
180 { ir_free_pagenodes(datapages
.root
);
181 ir_free_pagenodes(namepages
.root
);
185 void ir_free_pagenodes
186 ( struct pagenode_t
* pagenode
)
187 { if (pagenode
->header
.next
!= NULL
)
188 ir_free_pagenodes(pagenode
->header
.next
);
204 /* Return a pointer to the root class */
205 struct ir_class_t
* ir_class_root
207 { return &root_class
; }
209 /* Add a subclass to a class
210 Attempts to create a new subclass in the provided class, returning
211 the class if it already exists
213 struct ir_class_t
* ir_class_addchild
214 ( struct ir_class_t
* class,
217 { struct ir_class_t
* iter
;
218 printf("Class %s, addchild %s\n", class->name
, name
);
219 if (class->nextchild
== NULL
)
221 iter
= class->nextchild
;
222 if (iter
->name
== NULL
)
223 eprintf("Null name pointer in class %p\n", iter
);
225 eprintf("Null child added to class %s\n", iter
->name
);
227 if (bytes_identical(iter
->name
, name
))
229 if (iter
->nextsib
!= NULL
)
230 { iter
= iter
->nextsib
;
234 iter
= struct_alloc(ir_class_t
);
235 iter
->nextsib
= class->nextchild
;
236 iter
->name
= name_alloc(name
);
237 return class->nextchild
= iter
;
240 /* Add a set to a class
241 Attempts to create a new root set in the specified class, returning
242 the set if it already exists
244 struct ir_set_t
* ir_class_addset
245 ( struct ir_class_t
* class,
248 { struct ir_set_t
* iter
;
249 printf("Class %s, addset %s\n", class->name
, name
);
250 if (class->root_set
== NULL
)
252 iter
= class->root_set
;
253 if (iter
->name
== NULL
)
254 eprintf("Null name pointer in class %p\n", iter
);
256 eprintf("Null set added to class %s\n", iter
->name
);
258 if (bytes_identical(iter
->name
, name
))
260 if (iter
->nextsib
!= NULL
)
261 { iter
= iter
->nextsib
;
265 iter
= struct_alloc(ir_set_t
);
266 iter
->nextsib
= class->root_set
;
267 iter
->name
= name_alloc(name
);
268 return class->root_set
= iter
;
271 /* Add a set to a set
272 Attempts to create a new subset of the specified set, returning the
273 child if it already exists
275 struct ir_set_t
* ir_set_addchild
276 ( struct ir_set_t
* set
,
279 { struct ir_set_t
* iter
;
280 printf("Set %s, addchild %s\n", set
->name
, name
);
281 if (set
->nextchild
== NULL
)
283 iter
= set
->nextchild
;
284 if (iter
->name
== NULL
)
285 eprintf("Null name pointer in set %p\n", iter
);
287 eprintf("Null child added to set %s\n", iter
->name
);
289 if (bytes_identical(iter
->name
, name
))
291 if (iter
->nextsib
!= NULL
)
292 { iter
= iter
->nextsib
;
296 iter
= struct_alloc(ir_set_t
);
297 iter
->nextsib
= set
->nextchild
;
298 iter
->name
= name_alloc(name
);
299 return set
->nextchild
= iter
;
302 /* Add a framebox to a set
303 Attempts to create a new framebox of the specified set, returning
304 the framebox if it already exists
307 struct ir_framebox_t
* ir_set_add_framebox
308 ( struct ir_set_t
* set
,
311 { struct ir_framebox_t
* iter
;
312 if (set
->frameboxes
== NULL
)
314 iter
= set
->frameboxes
;
316 if (bytes_identical(iter
->header
.data_name
, name
))
318 if (iter
->header
.nextsib
!= NULL
)
319 { iter
= (struct ir_framebox_t
*) iter
->header
.nextsib
;
323 iter
= struct_alloc(ir_framebox_t
);
324 iter
->header
.nextsib
= (union ir_setdata_t
*) set
->frameboxes
;
325 iter
->header
.data_name
= name_alloc(name
);
326 return set
->frameboxes
= iter
;
329 /* Match two null-terminated bytestrings
330 Return 1 if the two bytestrings are identical, else 0
334 ( const uint8_t* stra
,
341 } while (ca
&& ca
!= '_' && ca
== cb
);
345 /* Assign Setdata to Set
348 void ir_set_assign_data
349 ( struct ir_set_t
* set
,
350 union ir_setdata_t
* setdata
352 { struct ir_framebox_t
* framebox
;
353 struct ir_simplex_t
* simplex
;
354 switch (setdata
->header
.type
)
356 framebox
= ir_set_add_framebox(set
, setdata
->header
.data_name
);
357 if (framebox
->framesheets
[setdata
->framesheet
.frameinfo
.facing
].header
.data_name
!= NULL
)
358 wprintf("Duplicate framesheet [%i] %s\n",
359 setdata
->framesheet
.frameinfo
.facing
, setdata
->header
.data_name
);
360 framebox
->framesheets
[setdata
->framesheet
.frameinfo
.facing
] = setdata
->framesheet
;
363 framebox
= ir_set_add_framebox(set
, setdata
->header
.data_name
);
364 if (framebox
->mapsheets
[setdata
->mapsheet
.frameinfo
.facing
].header
.data_name
!= NULL
)
365 wprintf("Duplicate mapsheet [%i] %s\n",
366 setdata
->mapsheet
.frameinfo
.facing
, setdata
->header
.data_name
);
367 framebox
->mapsheets
[setdata
->mapsheet
.frameinfo
.facing
] = setdata
->mapsheet
;
370 if (set
->audio
== NULL
)
371 { set
->audio
= (struct ir_simplex_t
*) setdata
;
374 simplex
= set
->audio
;
375 while (simplex
->header
.nextsib
!= NULL
)
376 if (bytes_identical(simplex
->header
.data_name
, setdata
->header
.data_name
))
377 { wprintf("Duplicate audio %s\n", setdata
->header
.data_name
);
378 *simplex
= setdata
->audio
;
379 //setdata is now a pointer to redundant, unused memory.
383 simplex
= (struct ir_simplex_t
*) simplex
->header
.nextsib
;
384 setdata
->audio
.header
.nextsib
= (union ir_setdata_t
*) set
->audio
;
385 set
->audio
= (struct ir_simplex_t
*) setdata
;
388 setdata
->link
.header
.nextsib
= (union ir_setdata_t
*) set
->links
;
389 set
->links
= (struct ir_link_t
*) setdata
;
392 fprintf(stderr
, "Unknown setdata type %x\n", setdata
->header
.type
);
397 void ir_set_assign_ref
398 ( struct ir_set_t
* set
,
402 wprintf("Ref override: 0x%lx -> 0x%lx for set %s\n",
403 (long unsigned) set
->ref
, (long unsigned) ref
, set
->name
);
405 //TODO: reflist_add(set);
408 void ir_data_assign_path
409 ( union ir_setdata_t
* setdata
,
413 eprintf("Null path in data %s\n", setdata
->header
.data_name
);
414 if (setdata
->header
.src_filename
!= NULL
)
415 wprintf("Path override: %s -> %s for setdata %s\n",
416 setdata
->header
.src_filename
, path
, setdata
->header
.data_name
);
417 setdata
->header
.src_filename
= name_alloc(path
);
420 union ir_setdata_t
* ir_framesheet
421 ( const uint8_t* name
,
426 { return ir_framedata(FSDAT
, name
, d
, width
, height
); }
428 union ir_setdata_t
* ir_mapsheet
429 ( const uint8_t* name
,
434 { return ir_framedata(MSDAT
, name
, d
, width
, height
); }
437 union ir_setdata_t
* ir_framedata
444 { struct ir_framedata_t
* framedata
= struct_alloc(ir_framedata_t
);
446 eprint("Null name in set allocation\n");
447 framedata
->header
.type
= type
;
448 framedata
->header
.data_name
= name_alloc(name
);
449 framedata
->frameinfo
.facing
= d
;
450 framedata
->frameinfo
.w
= width
;
451 framedata
->frameinfo
.h
= height
;
452 return (union ir_setdata_t
*) framedata
;
455 union ir_setdata_t
* ir_audio
456 ( const uint8_t* name
)
457 { struct ir_simplex_t
* audio
= struct_alloc(ir_simplex_t
);
459 eprint("Null audio\n");
460 audio
->header
.type
= ADAT
;
461 audio
->header
.data_name
= name_alloc(name
);
462 return (union ir_setdata_t
*) audio
;
466 /* Create classld that points to a class */
467 struct ir_classld_t
* ir_classld_from_class
468 ( struct ir_class_t
* class )
469 { struct ir_classld_t
* classld
;
471 eprint("Null class in classld\n");
472 classld
= struct_alloc(ir_classld_t
);
473 classld
->root_class
= class;
477 struct ir_setld_t
* ir_setld_from_ref
479 { struct ir_setld_t
* setld
;
480 setld
= struct_alloc(ir_setld_t
);
485 struct ir_setld_t
* ir_setld_from_classld
486 ( struct ir_classld_t
* classld
,
489 { struct ir_setld_t
* setld
;
490 setld
= struct_alloc(ir_setld_t
);
491 setld
->namelist
= struct_alloc(ir_namelist_t
);
492 setld
->namelist_head
= setld
->namelist
;
493 setld
->namelist_head
->name
= name_alloc(name
);
494 setld
->classld
= classld
;
498 struct ir_setld_t
* ir_setld_addchild
499 ( struct ir_setld_t
* setld
,
502 { if (setld
->namelist
== NULL
)
503 { setld
->namelist
= struct_alloc(ir_namelist_t
);
504 setld
->namelist_head
= setld
->namelist
;
507 { setld
->namelist_head
->nextsib
= struct_alloc(ir_namelist_t
);
508 setld
->namelist_head
= setld
->namelist_head
->nextsib
;
510 setld
->namelist_head
->name
= name_alloc(name
);
514 union ir_setdata_t
* ir_link
515 ( enum ltype link_type
,
516 struct ir_setld_t
* setld
,
519 { struct ir_link_t
* link
;
520 link
= struct_alloc(ir_link_t
);
521 link
->header
.type
= LDAT
;
522 link
->type
= link_type
;
523 link
->classld
= setld
->classld
;
525 if (link_type
!= OLINK
&& name
!= NULL
)
526 link
->header
.data_name
= name_alloc(name
);
527 return (union ir_setdata_t
*) link
;
534 { if (!bytes
) //valid behavior to attain current head
535 return datapages
.head
->header
.head
;
536 if (PL_HEADMEM(datapages
) < bytes
)
537 { datapages
.head
->header
.next
= (struct pagenode_t
*) calloc(datapages
.pagesize
,1);
538 if (datapages
.head
->header
.next
== NULL
)
539 eprint("Memory allocation error \n");
540 datapages
.head
= datapages
.head
->header
.next
;
541 datapages
.head
->header
.head
= datapages
.head
->root
;
543 datapages
.head
->header
.head
+= bytes
;
544 return (void*) datapages
.head
->header
.head
- bytes
;
549 ( const uint8_t* name_src
)
550 { const uint8_t* iter
;
554 name
= (uint8_t*)namepages
.head
->header
.head
;
556 for (head_mem
= PL_HEADMEM(namepages
); *iter
&& *iter
!= '_' && head_mem
; head_mem
--)
557 *(namepages
.head
->header
.head
)++ = *iter
++;
558 if (head_mem
== 0) //not enough room
559 { namepages
.head
->header
.next
= (struct pagenode_t
*) calloc(namepages
.pagesize
,1);
560 if (namepages
.head
->header
.next
== NULL
)
561 eprint("Memory allocation error\n");
562 namepages
.head
= namepages
.head
->header
.next
;
563 namepages
.head
->header
.head
= namepages
.head
->root
;
566 *(namepages
.head
->header
.head
)++ = '\0';