57 int pt_iscache_init(struct pt_image_section_cache *iscache, const char *name)  in pt_iscache_init()  argument
59 	if (!iscache)  in pt_iscache_init()
62 	memset(iscache, 0, sizeof(*iscache));  in pt_iscache_init()
63 	iscache->limit = UINT64_MAX;  in pt_iscache_init()
65 		iscache->name = dupstr(name);  in pt_iscache_init()
66 		if (!iscache->name)  in pt_iscache_init()
74 		errcode = mtx_init(&iscache->lock, mtx_plain);  in pt_iscache_init()
83 void pt_iscache_fini(struct pt_image_section_cache *iscache)  in pt_iscache_fini()  argument
85 	if (!iscache)  in pt_iscache_fini()
88 	(void) pt_iscache_clear(iscache);  in pt_iscache_fini()
89 	free(iscache->name);  in pt_iscache_fini()
93 	mtx_destroy(&iscache->lock);  in pt_iscache_fini()
98 static inline int pt_iscache_lock(struct pt_image_section_cache *iscache)  in pt_iscache_lock()  argument
100 	if (!iscache)  in pt_iscache_lock()
107 		errcode = mtx_lock(&iscache->lock);  in pt_iscache_lock()
116 static inline int pt_iscache_unlock(struct pt_image_section_cache *iscache)  in pt_iscache_unlock()  argument
118 	if (!iscache)  in pt_iscache_unlock()
125 		errcode = mtx_unlock(&iscache->lock);  in pt_iscache_unlock()
139 static int pt_iscache_expand(struct pt_image_section_cache *iscache)  in pt_iscache_expand()  argument
144 	if (!iscache)  in pt_iscache_expand()
147 	capacity = iscache->capacity;  in pt_iscache_expand()
154 	entries = realloc(iscache->entries, target * sizeof(*entries));  in pt_iscache_expand()
158 	iscache->capacity = target;  in pt_iscache_expand()
159 	iscache->entries = entries;  in pt_iscache_expand()
163 static int pt_iscache_find_locked(struct pt_image_section_cache *iscache,  in pt_iscache_find_locked()  argument
169 	if (!iscache || !filename)  in pt_iscache_find_locked()
172 	end = iscache->size;  in pt_iscache_find_locked()
179 		entry = &iscache->entries[idx];  in pt_iscache_find_locked()
230 static int pt_iscache_lru_prune(struct pt_image_section_cache *iscache,  in pt_iscache_lru_prune()  argument
236 	if (!iscache || !tail)  in pt_iscache_lru_prune()
239 	limit = iscache->limit;  in pt_iscache_lru_prune()
242 	pnext = &iscache->lru;  in pt_iscache_lru_prune()
250 		iscache->used = used - lru->size;  in pt_iscache_lru_prune()
267 static int pt_isache_lru_new(struct pt_image_section_cache *iscache,  in pt_isache_lru_new()  argument
274 	if (!iscache)  in pt_isache_lru_new()
284 	limit = iscache->limit;  in pt_isache_lru_new()
301 	lru->next = iscache->lru;  in pt_isache_lru_new()
302 	iscache->lru = lru;  in pt_isache_lru_new()
304 	used = iscache->used;  in pt_isache_lru_new()
309 	iscache->used = total;  in pt_isache_lru_new()
320 static int pt_iscache_lru_add(struct pt_image_section_cache *iscache,  in pt_iscache_lru_add()  argument
325 	if (!iscache)  in pt_iscache_lru_add()
328 	pnext = &iscache->lru;  in pt_iscache_lru_add()
336 		lru->next = iscache->lru;  in pt_iscache_lru_add()
337 		iscache->lru = lru;  in pt_iscache_lru_add()
343 	return pt_isache_lru_new(iscache, section);  in pt_iscache_lru_add()
351 static int pt_iscache_lru_remove(struct pt_image_section_cache *iscache,  in pt_iscache_lru_remove()  argument
356 	if (!iscache)  in pt_iscache_lru_remove()
359 	pnext = &iscache->lru;  in pt_iscache_lru_remove()
381 static int pt_iscache_lru_resize(struct pt_image_section_cache *iscache,  in pt_iscache_lru_resize()  argument
388 	if (!iscache)  in pt_iscache_lru_resize()
391 	status = pt_iscache_lru_add(iscache, section);  in pt_iscache_lru_resize()
395 	lru = iscache->lru;  in pt_iscache_lru_resize()
407 		if (iscache->limit < memsize)  in pt_iscache_lru_resize()
420 	used = iscache->used;  in pt_iscache_lru_resize()
424 	iscache->used = used;  in pt_iscache_lru_resize()
426 	return (iscache->limit < used) ? 1 : 0;  in pt_iscache_lru_resize()
435 static int pt_iscache_lru_clear(struct pt_image_section_cache *iscache)  in pt_iscache_lru_clear()  argument
440 	errcode = pt_iscache_lock(iscache);  in pt_iscache_lru_clear()
444 	lru = iscache->lru;  in pt_iscache_lru_clear()
445 	iscache->lru = NULL;  in pt_iscache_lru_clear()
446 	iscache->used = 0ull;  in pt_iscache_lru_clear()
448 	errcode = pt_iscache_unlock(iscache);  in pt_iscache_lru_clear()
463 pt_iscache_find_section_locked(const struct pt_image_section_cache *iscache,  in pt_iscache_find_section_locked()  argument
471 	if (!iscache || !filename)  in pt_iscache_find_section_locked()
475 	match = end = iscache->size;  in pt_iscache_find_section_locked()
480 		entry = &iscache->entries[idx];  in pt_iscache_find_section_locked()
524 int pt_iscache_add(struct pt_image_section_cache *iscache,  in pt_iscache_add()  argument
532 	if (!iscache || !section)  in pt_iscache_add()
572 	errcode = pt_section_attach(section, iscache);  in pt_iscache_add()
576 	errcode = pt_iscache_lock(iscache);  in pt_iscache_add()
601 		match = pt_iscache_find_section_locked(iscache, filename,  in pt_iscache_add()
609 		if (iscache->size <= match)  in pt_iscache_add()
612 		entry = &iscache->entries[match];  in pt_iscache_add()
622 				errcode = pt_iscache_unlock(iscache);  in pt_iscache_add()
626 				errcode = pt_section_detach(section, iscache);  in pt_iscache_add()
651 		errcode = pt_iscache_unlock(iscache);  in pt_iscache_add()
657 		errcode = pt_section_detach(section, iscache);  in pt_iscache_add()
663 		errcode = pt_section_attach(sec, iscache);  in pt_iscache_add()
669 		errcode = pt_iscache_lock(iscache);  in pt_iscache_add()
683 		errcode = pt_iscache_lru_remove(iscache, section);  in pt_iscache_add()
707 	if (iscache->capacity <= iscache->size) {  in pt_iscache_add()
709 		if (iscache->capacity < iscache->size) {  in pt_iscache_add()
714 		errcode = pt_iscache_expand(iscache);  in pt_iscache_add()
719 		if (iscache->capacity <= iscache->size) {  in pt_iscache_add()
730 	idx = iscache->size++;  in pt_iscache_add()
732 	iscache->entries[idx].section = section;  in pt_iscache_add()
733 	iscache->entries[idx].laddr = laddr;  in pt_iscache_add()
735 	errcode = pt_iscache_unlock(iscache);  in pt_iscache_add()
742 	(void) pt_iscache_unlock(iscache);  in pt_iscache_add()
745 	(void) pt_section_detach(section, iscache);  in pt_iscache_add()
748 	(void) pt_iscache_lru_clear(iscache);  in pt_iscache_add()
756 int pt_iscache_find(struct pt_image_section_cache *iscache,  in pt_iscache_find()  argument
762 	errcode = pt_iscache_lock(iscache);  in pt_iscache_find()
766 	isid = pt_iscache_find_locked(iscache, filename, offset, size, laddr);  in pt_iscache_find()
768 	errcode = pt_iscache_unlock(iscache);  in pt_iscache_find()
775 int pt_iscache_lookup(struct pt_image_section_cache *iscache,  in pt_iscache_lookup()  argument
781 	if (!iscache || !section || !laddr)  in pt_iscache_lookup()
793 	errcode = pt_iscache_lock(iscache);  in pt_iscache_lookup()
797 	if (iscache->size <= index)  in pt_iscache_lookup()
802 		entry = &iscache->entries[index];  in pt_iscache_lookup()
809 	errcode = pt_iscache_unlock(iscache);  in pt_iscache_lookup()
816 int pt_iscache_clear(struct pt_image_section_cache *iscache)  in pt_iscache_clear()  argument
823 	if (!iscache)  in pt_iscache_clear()
826 	errcode = pt_iscache_lock(iscache);  in pt_iscache_clear()
830 	entries = iscache->entries;  in pt_iscache_clear()
831 	end = iscache->size;  in pt_iscache_clear()
832 	lru = iscache->lru;  in pt_iscache_clear()
834 	iscache->entries = NULL;  in pt_iscache_clear()
835 	iscache->capacity = 0;  in pt_iscache_clear()
836 	iscache->size = 0;  in pt_iscache_clear()
837 	iscache->lru = NULL;  in pt_iscache_clear()
838 	iscache->used = 0ull;  in pt_iscache_clear()
840 	errcode = pt_iscache_unlock(iscache);  in pt_iscache_clear()
856 		errcode = pt_section_detach(section, iscache);  in pt_iscache_clear()
871 	struct pt_image_section_cache *iscache;  in pt_iscache_alloc()  local
873 	iscache = malloc(sizeof(*iscache));  in pt_iscache_alloc()
874 	if (iscache)  in pt_iscache_alloc()
875 		pt_iscache_init(iscache, name);  in pt_iscache_alloc()
877 	return iscache;  in pt_iscache_alloc()
880 void pt_iscache_free(struct pt_image_section_cache *iscache)  in pt_iscache_free()  argument
882 	if (!iscache)  in pt_iscache_free()
885 	pt_iscache_fini(iscache);  in pt_iscache_free()
886 	free(iscache);  in pt_iscache_free()
889 int pt_iscache_set_limit(struct pt_image_section_cache *iscache, uint64_t limit)  in pt_iscache_set_limit()  argument
894 	if (!iscache)  in pt_iscache_set_limit()
900 	errcode = pt_iscache_lock(iscache);  in pt_iscache_set_limit()
904 	iscache->limit = limit;  in pt_iscache_set_limit()
905 	if (limit < iscache->used)  in pt_iscache_set_limit()
906 		status = pt_iscache_lru_prune(iscache, &tail);  in pt_iscache_set_limit()
908 	errcode = pt_iscache_unlock(iscache);  in pt_iscache_set_limit()
916 const char *pt_iscache_name(const struct pt_image_section_cache *iscache)  in pt_iscache_name()  argument
918 	if (!iscache)  in pt_iscache_name()
921 	return iscache->name;  in pt_iscache_name()
924 int pt_iscache_add_file(struct pt_image_section_cache *iscache,  in pt_iscache_add_file()  argument
931 	if (!iscache || !filename)  in pt_iscache_add_file()
934 	errcode = pt_iscache_lock(iscache);  in pt_iscache_add_file()
938 	match = pt_iscache_find_section_locked(iscache, filename, offset,  in pt_iscache_add_file()
941 		(void) pt_iscache_unlock(iscache);  in pt_iscache_add_file()
952 	if (match < iscache->size) {  in pt_iscache_add_file()
955 		entry = &iscache->entries[match];  in pt_iscache_add_file()
957 			errcode = pt_iscache_unlock(iscache);  in pt_iscache_add_file()
968 			(void) pt_iscache_unlock(iscache);  in pt_iscache_add_file()
972 		errcode = pt_iscache_unlock(iscache);  in pt_iscache_add_file()
978 		errcode = pt_iscache_unlock(iscache);  in pt_iscache_add_file()
989 	isid = pt_iscache_add(iscache, section, vaddr);  in pt_iscache_add_file()
1002 int pt_iscache_read(struct pt_image_section_cache *iscache, uint8_t *buffer,  in pt_iscache_read()  argument
1009 	if (!iscache || !buffer || !size)  in pt_iscache_read()
1012 	errcode = pt_iscache_lookup(iscache, &section, &laddr, isid);  in pt_iscache_read()
1050 int pt_iscache_notify_map(struct pt_image_section_cache *iscache,  in pt_iscache_notify_map()  argument
1058 	errcode = pt_iscache_lock(iscache);  in pt_iscache_notify_map()
1062 	status = pt_iscache_lru_add(iscache, section);  in pt_iscache_notify_map()
1064 		status = pt_iscache_lru_prune(iscache, &tail);  in pt_iscache_notify_map()
1066 	errcode = pt_iscache_unlock(iscache);  in pt_iscache_notify_map()
1074 int pt_iscache_notify_resize(struct pt_image_section_cache *iscache,  in pt_iscache_notify_resize()  argument
1082 	errcode = pt_iscache_lock(iscache);  in pt_iscache_notify_resize()
1086 	status = pt_iscache_lru_resize(iscache, section, memsize);  in pt_iscache_notify_resize()
1088 		status = pt_iscache_lru_prune(iscache, &tail);  in pt_iscache_notify_resize()
1090 	errcode = pt_iscache_unlock(iscache);  in pt_iscache_notify_resize()