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 the class's name string */
205 uint8_t* ir_class_name
206 ( struct ir_class_t
* class )
207 { return class->name
; }
209 /* Return a pointer to the root class */
210 struct ir_class_t
* ir_class_root
212 { return &root_class
; }
214 /* Add a subclass to a class
215 Attempts to create a new subclass in the provided class, returning
216 the class if it already exists
218 struct ir_class_t
* ir_class_addchild
219 ( struct ir_class_t
* class,
222 { struct ir_class_t
* iter
;
223 if (class->nextchild
== NULL
)
225 iter
= class->nextchild
;
226 if (iter
->name
== NULL
)
227 eprintf("Null name pointer in class %p\n", iter
);
229 eprintf("Null child added to class %s\n", iter
->name
);
231 if (bytes_identical(iter
->name
, name
))
233 if (iter
->nextsib
!= NULL
)
234 { iter
= iter
->nextsib
;
238 iter
= struct_alloc(ir_class_t
);
239 iter
->nextsib
= class->nextchild
;
240 iter
->name
= name_alloc(name
);
241 return class->nextchild
= iter
;
244 /* Add a set to a class
245 Attempts to create a new root set in the specified class, returning
246 the set if it already exists
248 struct ir_set_t
* ir_class_addset
249 ( struct ir_class_t
* class,
252 { struct ir_set_t
* iter
;
253 if (class->root_set
== NULL
)
255 iter
= class->root_set
;
256 if (iter
->name
== NULL
)
257 eprintf("Null name pointer in class %p\n", iter
);
259 eprintf("Null set added to class %s\n", iter
->name
);
261 if (bytes_identical(iter
->name
, name
))
263 if (iter
->nextsib
!= NULL
)
264 { iter
= iter
->nextsib
;
268 iter
= struct_alloc(ir_set_t
);
269 iter
->nextsib
= class->root_set
;
270 iter
->name
= name_alloc(name
);
271 return class->root_set
= iter
;
274 /* Add a set to a set
275 Attempts to create a new subset of the specified set, returning the
276 child if it already exists
278 struct ir_set_t
* ir_set_addchild
279 ( struct ir_set_t
* set
,
282 { struct ir_set_t
* iter
;
283 if (set
->nextchild
== NULL
)
285 iter
= set
->nextchild
;
286 if (iter
->name
== NULL
)
287 eprintf("Null name pointer in set %p\n", iter
);
289 eprintf("Null child added to set %s\n", iter
->name
);
291 if (bytes_identical(iter
->name
, name
))
293 if (iter
->nextsib
!= NULL
)
294 { iter
= iter
->nextsib
;
298 iter
= struct_alloc(ir_set_t
);
299 iter
->nextsib
= set
->nextchild
;
300 iter
->name
= name_alloc(name
);
301 return set
->nextchild
= iter
;
304 /* Add a framebox to a set
305 Attempts to create a new framebox of the specified set, returning
306 the framebox if it already exists
309 struct ir_framebox_t
* ir_set_add_framebox
310 ( struct ir_set_t
* set
,
313 { struct ir_framebox_t
* iter
;
314 if (set
->frameboxes
== NULL
)
316 iter
= set
->frameboxes
;
318 if (bytes_identical(iter
->header
.data_name
, name
))
320 if (iter
->header
.nextsib
!= NULL
)
321 { iter
= (struct ir_framebox_t
*) iter
->header
.nextsib
;
325 iter
= struct_alloc(ir_framebox_t
);
326 iter
->header
.nextsib
= (union ir_setdata_t
*) set
->frameboxes
;
327 iter
->header
.data_name
= name_alloc(name
);
328 return set
->frameboxes
= iter
;
331 /* Match two null-terminated bytestrings
332 Return 1 if the two bytestrings are identical, else 0
336 ( const uint8_t* stra
,
343 } while (ca
&& ca
!= '_' && ca
== cb
);
347 /* Assign Setdata to Set
350 void ir_set_assign_data
351 ( struct ir_set_t
* set
,
352 union ir_setdata_t
* setdata
354 { struct ir_framebox_t
* framebox
;
355 struct ir_simplex_t
* simplex
;
356 switch (setdata
->header
.type
)
358 framebox
= ir_set_add_framebox(set
, setdata
->header
.data_name
);
359 if (framebox
->framesheets
[setdata
->framesheet
.frameinfo
.facing
].header
.data_name
!= NULL
)
360 wprintf("Duplicate framesheet [%i] %s\n",
361 setdata
->framesheet
.frameinfo
.facing
, setdata
->header
.data_name
);
362 framebox
->framesheets
[setdata
->framesheet
.frameinfo
.facing
] = setdata
->framesheet
;
365 framebox
= ir_set_add_framebox(set
, setdata
->header
.data_name
);
366 if (framebox
->mapsheets
[setdata
->mapsheet
.frameinfo
.facing
].header
.data_name
!= NULL
)
367 wprintf("Duplicate mapsheet [%i] %s\n",
368 setdata
->mapsheet
.frameinfo
.facing
, setdata
->header
.data_name
);
369 framebox
->mapsheets
[setdata
->mapsheet
.frameinfo
.facing
] = setdata
->mapsheet
;
372 if (set
->audio
== NULL
)
373 { set
->audio
= (struct ir_simplex_t
*) setdata
;
376 simplex
= set
->audio
;
377 while (simplex
->header
.nextsib
!= NULL
)
378 if (bytes_identical(simplex
->header
.data_name
, setdata
->header
.data_name
))
379 { wprintf("Duplicate audio %s\n", setdata
->header
.data_name
);
380 *simplex
= setdata
->audio
;
381 //setdata is now a pointer to redundant, unused memory.
385 simplex
= (struct ir_simplex_t
*) simplex
->header
.nextsib
;
386 setdata
->audio
.header
.nextsib
= (union ir_setdata_t
*) set
->audio
;
387 set
->audio
= (struct ir_simplex_t
*) setdata
;
390 setdata
->link
.header
.nextsib
= (union ir_setdata_t
*) set
->links
;
391 set
->links
= (struct ir_link_t
*) setdata
;
394 fprintf(stderr
, "Unknown setdata type %x\n", setdata
->header
.type
);
399 void ir_set_assign_ref
400 ( struct ir_set_t
* set
,
404 wprintf("Ref override: 0x%lx -> 0x%lx for set %s\n",
405 (long unsigned) set
->ref
, (long unsigned) ref
, set
->name
);
407 //TODO: reflist_add(set);
410 void ir_data_assign_path
411 ( union ir_setdata_t
* setdata
,
415 eprintf("Null path in data %s\n", setdata
->header
.data_name
);
416 if (setdata
->header
.src_filename
!= NULL
)
417 wprintf("Path override: %s -> %s for setdata %s\n",
418 setdata
->header
.src_filename
, path
, setdata
->header
.data_name
);
419 setdata
->header
.src_filename
= name_alloc(path
);
422 union ir_setdata_t
* ir_framesheet
423 ( const uint8_t* name
,
428 { return ir_framedata(FSDAT
, name
, d
, width
, height
); }
430 union ir_setdata_t
* ir_mapsheet
431 ( const uint8_t* name
,
436 { return ir_framedata(MSDAT
, name
, d
, width
, height
); }
439 union ir_setdata_t
* ir_framedata
446 { struct ir_framedata_t
* framedata
= struct_alloc(ir_framedata_t
);
448 eprint("Null name in set allocation\n");
449 framedata
->header
.type
= type
;
450 framedata
->header
.data_name
= name_alloc(name
);
451 framedata
->frameinfo
.facing
= d
;
452 framedata
->frameinfo
.w
= width
;
453 framedata
->frameinfo
.h
= height
;
454 return (union ir_setdata_t
*) framedata
;
457 union ir_setdata_t
* ir_audio
458 ( const uint8_t* name
)
459 { struct ir_simplex_t
* audio
= struct_alloc(ir_simplex_t
);
461 eprint("Null audio\n");
462 audio
->header
.type
= ADAT
;
463 audio
->header
.data_name
= name_alloc(name
);
464 return (union ir_setdata_t
*) audio
;
468 /* Create classld that points to a class */
469 struct ir_classld_t
* ir_classld_from_class
470 ( struct ir_class_t
* class )
471 { struct ir_classld_t
* classld
;
473 eprint("Null class in classld\n");
474 classld
= struct_alloc(ir_classld_t
);
475 classld
->root_class
= class;
479 struct ir_setld_t
* ir_setld_from_ref
481 { struct ir_setld_t
* setld
;
482 setld
= struct_alloc(ir_setld_t
);
487 struct ir_setld_t
* ir_setld_from_classld
488 ( struct ir_classld_t
* classld
,
491 { struct ir_setld_t
* setld
;
492 setld
= struct_alloc(ir_setld_t
);
493 setld
->namelist
= struct_alloc(ir_namelist_t
);
494 setld
->namelist_head
= setld
->namelist
;
495 setld
->namelist_head
->name
= name_alloc(name
);
496 setld
->classld
= classld
;
500 struct ir_setld_t
* ir_setld_addchild
501 ( struct ir_setld_t
* setld
,
504 { if (setld
->namelist
== NULL
)
505 { setld
->namelist
= struct_alloc(ir_namelist_t
);
506 setld
->namelist_head
= setld
->namelist
;
509 { setld
->namelist_head
->nextsib
= struct_alloc(ir_namelist_t
);
510 setld
->namelist_head
= setld
->namelist_head
->nextsib
;
512 setld
->namelist_head
->name
= name_alloc(name
);
516 union ir_setdata_t
* ir_link
517 ( enum ltype link_type
,
518 struct ir_setld_t
* setld
,
521 { struct ir_link_t
* link
;
522 link
= struct_alloc(ir_link_t
);
523 link
->header
.type
= LDAT
;
524 link
->type
= link_type
;
525 link
->classld
= setld
->classld
;
527 if (link_type
!= OLINK
&& name
!= NULL
)
528 link
->header
.data_name
= name_alloc(name
);
529 return (union ir_setdata_t
*) link
;
536 { if (!bytes
) //valid behavior to attain current head
537 return datapages
.head
->header
.head
;
538 if (PL_HEADMEM(datapages
) < bytes
)
539 { datapages
.head
->header
.next
= (struct pagenode_t
*) calloc(datapages
.pagesize
,1);
540 if (datapages
.head
->header
.next
== NULL
)
541 eprint("Memory allocation error \n");
542 datapages
.head
= datapages
.head
->header
.next
;
543 datapages
.head
->header
.head
= datapages
.head
->root
;
545 datapages
.head
->header
.head
+= bytes
;
546 return (void*) datapages
.head
->header
.head
- bytes
;
551 ( const uint8_t* name_src
)
552 { const uint8_t* iter
;
556 name
= (uint8_t*)namepages
.head
->header
.head
;
558 for (head_mem
= PL_HEADMEM(namepages
); *iter
&& *iter
!= '_' && head_mem
; head_mem
--)
559 *(namepages
.head
->header
.head
)++ = *iter
++;
560 if (head_mem
== 0) //not enough room
561 { namepages
.head
->header
.next
= (struct pagenode_t
*) calloc(namepages
.pagesize
,1);
562 if (namepages
.head
->header
.next
== NULL
)
563 eprint("Memory allocation error\n");
564 namepages
.head
= namepages
.head
->header
.next
;
565 namepages
.head
->header
.head
= namepages
.head
->root
;
568 *(namepages
.head
->header
.head
)++ = '\0';