ft_malloc 
Projet plutôt UNIX
Description
Une librairie de gestion de l'allocation dynamique de la mémoire. Intégration des fonctions suivantes:
void free(void *ptr);
void *malloc(size_t size);
void *realloc(void *ptr, size_t size);
void show_alloc_mem();
Fonctions autorisées
- mmap
- munmap
- getpagesize
- getrlimit
- libpthread
- libft
Structure
[tiny][small]:
Arenas: => arena are getpagesize() aligned
[size|flags][next] => 16bits;
[null]
or:
[size|flags][next] => 16bits;
[...] => payload are sizeof(void *) aligned
[...]
[...]
[...]
[size|flags][next] => 16bits;
[...]
[...]
[large]:
[size|flags][next] => 16bits;
[...]
[...]
[...]
[...]
[size|flags][next] => 16bits;
[...]
[...]
flags = Mmap'd | PrevInUse
Debug flags
-DDCALLTRACE=[1-4]
Print call trace
-DDHEXMEM=[1-...]
Print hex memory for x bytes
-DDEBUG
show_allocation_mem after malloc, realloc, free call