144         : start(start), size(size), free(1), prev(nullptr), next(nullptr) {  in chunk_t()
148         int                 free : 4;  member
342         if (cur->free && (cur->size >= (size+extra))) {  in alloc()
355         free_chunk->free = 0;  in alloc()
389             LOG_FATAL_IF(cur->free,  in dealloc()
395             cur->free = 1;  in dealloc()
399                 if (p && (p->free || !cur->size)) {  in dealloc()
406             } while (cur && cur->free);  in dealloc()
409                 if (!freed->free) {  in dealloc()
413             LOG_FATAL_IF(!freed->free,  in dealloc()
467                     int(cur->free) ? "F" : "A",  in dump_l()
472         if (!cur->free)  in dump_l()