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 if (class->nextchild
== NULL
)
219 return class->nextchild
= struct_alloc(ir_class_t
);
220 iter
= class->nextchild
;
222 if (bytes_identical(iter
->name
, name
))
224 if (iter
->nextsib
!= NULL
)
225 { iter
= iter
->nextsib
;
228 iter
= struct_alloc(ir_class_t
);
229 iter
->nextsib
= class->nextchild
;
230 iter
->name
= name_alloc(name
);
231 return class->nextchild
= iter
;
234 /* Add a set to a class
235 Attempts to create a new root set in the specified class, returning
236 the set if it already exists
238 struct ir_set_t
* ir_class_addset
239 ( struct ir_class_t
* class,
242 { struct ir_set_t
* iter
;
243 if (class->root_set
== NULL
)
244 return class->root_set
= struct_alloc(ir_set_t
);
245 iter
= class->root_set
;
247 if (bytes_identical(iter
->name
, name
))
249 if (iter
->nextsib
!= NULL
)
250 { iter
= iter
->nextsib
;
253 iter
= struct_alloc(ir_set_t
);
254 iter
->nextsib
= class->root_set
;
255 iter
->name
= name_alloc(name
);
256 return class->root_set
= iter
;
259 /* Add a set to a set
260 Attempts to create a new subset of the specified set, returning the
261 child if it already exists
263 struct ir_set_t
* ir_set_addchild
264 ( struct ir_set_t
* set
,
267 { struct ir_set_t
* iter
;
268 if (set
->nextchild
== NULL
)
269 return set
->nextchild
= struct_alloc(ir_set_t
);
270 iter
= set
->nextchild
;
272 if (bytes_identical(iter
->name
, name
))
274 if (iter
->nextsib
!= NULL
)
275 { iter
= iter
->nextsib
;
278 iter
= struct_alloc(ir_set_t
);
279 iter
->nextsib
= set
->nextchild
;
280 iter
->name
= name_alloc(name
);
281 return set
->nextchild
= iter
;
284 /* Add a framebox to a set
285 Attempts to create a new framebox of the specified set, returning
286 the framebox if it already exists
289 struct ir_framebox_t
* ir_set_add_framebox
290 ( struct ir_set_t
* set
,
293 { struct ir_framebox_t
* iter
;
294 if (set
->frameboxes
== NULL
)
295 return set
->frameboxes
= struct_alloc(ir_framebox_t
);
296 iter
= set
->frameboxes
;
298 if (bytes_identical(iter
->header
.data_name
, name
))
300 if (iter
->header
.nextsib
!= NULL
)
301 { iter
= (struct ir_framebox_t
*) iter
->header
.nextsib
;
304 iter
= struct_alloc(ir_framebox_t
);
305 iter
->header
.nextsib
= (union ir_setdata_t
*) set
->frameboxes
;
306 iter
->header
.data_name
= name_alloc(name
);
307 return set
->frameboxes
= iter
;
310 /* Match two null-terminated bytestrings
311 Return 1 if the two bytestrings are identical, else 0
315 ( const uint8_t* stra
,
322 } while (ca
&& ca
!= '_' && ca
== cb
);
326 /* Assign Setdata to Set
329 void ir_set_assign_data
330 ( struct ir_set_t
* set
,
331 union ir_setdata_t
* setdata
333 { struct ir_framebox_t
* framebox
;
334 struct ir_simplex_t
* simplex
;
335 switch (setdata
->header
.type
)
337 framebox
= ir_set_add_framebox(set
, setdata
->header
.data_name
);
338 if (framebox
->framesheets
[setdata
->framesheet
.frameinfo
.facing
].header
.data_name
!= NULL
)
339 wprintf("Duplicate framesheet [%i] %s\n",
340 setdata
->framesheet
.frameinfo
.facing
, setdata
->header
.data_name
);
341 framebox
->framesheets
[setdata
->framesheet
.frameinfo
.facing
] = setdata
->framesheet
;
344 framebox
= ir_set_add_framebox(set
, setdata
->header
.data_name
);
345 if (framebox
->mapsheets
[setdata
->mapsheet
.frameinfo
.facing
].header
.data_name
!= NULL
)
346 wprintf("Duplicate mapsheet [%i] %s\n",
347 setdata
->mapsheet
.frameinfo
.facing
, setdata
->header
.data_name
);
348 framebox
->mapsheets
[setdata
->mapsheet
.frameinfo
.facing
] = setdata
->mapsheet
;
351 if (set
->audio
== NULL
)
352 { set
->audio
= (struct ir_simplex_t
*) setdata
;
355 simplex
= set
->audio
;
356 while (simplex
->header
.nextsib
!= NULL
)
357 if (bytes_identical(simplex
->header
.data_name
, setdata
->header
.data_name
))
358 { wprintf("Duplicate audio %s\n", setdata
->header
.data_name
);
359 *simplex
= setdata
->audio
;
360 //setdata is now a pointer to redundant, unused memory.
364 simplex
= (struct ir_simplex_t
*) simplex
->header
.nextsib
;
365 setdata
->audio
.header
.nextsib
= (union ir_setdata_t
*) set
->audio
;
366 set
->audio
= (struct ir_simplex_t
*) setdata
;
369 setdata
->link
.header
.nextsib
= (union ir_setdata_t
*) set
->links
;
370 set
->links
= (struct ir_link_t
*) setdata
;
373 fprintf(stderr
, "Unknown setdata type %x\n", setdata
->header
.type
);
378 void ir_set_assign_ref
379 ( struct ir_set_t
* set
,
383 wprintf("Ref override: 0x%lx -> 0x%lx for set %s\n",
384 (long unsigned) set
->ref
, (long unsigned) ref
, set
->name
);
386 //TODO: reflist_add(set);
389 void ir_data_assign_path
390 ( union ir_setdata_t
* setdata
,
393 { if (setdata
->header
.src_filename
!= NULL
)
394 wprintf("Path override: %s -> %s for setdata %s\n",
395 setdata
->header
.src_filename
, path
, setdata
->header
.data_name
);
396 setdata
->header
.src_filename
= name_alloc(path
);
399 union ir_setdata_t
* ir_framesheet
400 ( const uint8_t* name
,
405 { return ir_framedata(FSDAT
, name
, d
, width
, height
); }
407 union ir_setdata_t
* ir_mapsheet
408 ( const uint8_t* name
,
413 { return ir_framedata(MSDAT
, name
, d
, width
, height
); }
416 union ir_setdata_t
* ir_framedata
423 { struct ir_framedata_t
* framedata
= struct_alloc(ir_framedata_t
);
424 framedata
->header
.type
= type
;
425 framedata
->header
.data_name
= name_alloc(name
);
426 framedata
->frameinfo
.facing
= d
;
427 framedata
->frameinfo
.w
= width
;
428 framedata
->frameinfo
.h
= height
;
429 return (union ir_setdata_t
*) framedata
;
432 union ir_setdata_t
* ir_audio
433 ( const uint8_t* name
)
434 { struct ir_simplex_t
* audio
= struct_alloc(ir_simplex_t
);
435 audio
->header
.type
= ADAT
;
436 audio
->header
.data_name
= name_alloc(name
);
437 return (union ir_setdata_t
*) audio
;
441 /* Create classld that points to a class */
442 struct ir_classld_t
* ir_classld_from_class
443 ( struct ir_class_t
* class )
444 { struct ir_classld_t
* classld
;
445 classld
= struct_alloc(ir_classld_t
);
446 classld
->root_class
= class;
450 struct ir_setld_t
* ir_setld_from_ref
452 { struct ir_setld_t
* setld
;
453 setld
= struct_alloc(ir_setld_t
);
458 struct ir_setld_t
* ir_setld_from_classld
459 ( struct ir_classld_t
* classld
,
462 { struct ir_setld_t
* setld
;
463 setld
= struct_alloc(ir_setld_t
);
464 setld
->namelist
= struct_alloc(ir_namelist_t
);
465 setld
->namelist_head
= setld
->namelist
;
466 setld
->namelist_head
->name
= name_alloc(name
);
467 setld
->classld
= classld
;
471 struct ir_setld_t
* ir_setld_addchild
472 ( struct ir_setld_t
* setld
,
475 { if (setld
->namelist
== NULL
)
476 { setld
->namelist
= struct_alloc(ir_namelist_t
);
477 setld
->namelist_head
= setld
->namelist
;
480 { setld
->namelist_head
->nextsib
= struct_alloc(ir_namelist_t
);
481 setld
->namelist_head
= setld
->namelist_head
->nextsib
;
483 setld
->namelist_head
->name
= name_alloc(name
);
487 union ir_setdata_t
* ir_link
488 ( enum ltype link_type
,
489 struct ir_setld_t
* setld
,
492 { struct ir_link_t
* link
;
493 link
= struct_alloc(ir_link_t
);
494 link
->header
.type
= LDAT
;
495 link
->type
= link_type
;
496 link
->classld
= setld
->classld
;
498 if (link_type
!= OLINK
&& name
!= NULL
)
499 link
->header
.data_name
= name_alloc(name
);
500 return (union ir_setdata_t
*) link
;
507 { if (!bytes
) //valid behavior to attain current head
508 return datapages
.head
->header
.head
;
509 if (PL_HEADMEM(datapages
) < bytes
)
510 { datapages
.head
->header
.next
= (struct pagenode_t
*) calloc(datapages
.pagesize
,1);
511 if (datapages
.head
->header
.next
== NULL
)
512 eprint("Memory allocation error \n");
513 datapages
.head
= datapages
.head
->header
.next
;
514 datapages
.head
->header
.head
= datapages
.head
->root
;
516 datapages
.head
->header
.head
+= bytes
;
517 return (void*) datapages
.head
->header
.head
- bytes
;
522 ( const uint8_t* name_src
)
523 { const uint8_t* iter
;
527 name
= (uint8_t*)namepages
.head
->header
.head
;
529 for (head_mem
= PL_HEADMEM(namepages
); *iter
&& *iter
!= '_' && head_mem
; head_mem
--)
530 *(namepages
.head
->header
.head
)++ = *iter
++;
531 if (head_mem
== 0) //not enough room
532 { namepages
.head
->header
.next
= (struct pagenode_t
*) calloc(namepages
.pagesize
,1);
533 if (namepages
.head
->header
.next
== NULL
)
534 eprint("Memory allocation error\n");
535 namepages
.head
= namepages
.head
->header
.next
;
536 namepages
.head
->header
.head
= namepages
.head
->root
;
539 *(namepages
.head
->header
.head
)++ = '\0';