cosmopolitan/libc/mem/mem.h

#ifndef COSMOPOLITAN_LIBC_MEM_MEM_H_
#define COSMOPOLITAN_LIBC_MEM_MEM_H_

#define M_TRIM_THRESHOLD (-1)
#define M_GRANULARITY    (-2)
#define M_MMAP_THRESHOLD (-3)

COSMOPOLITAN_C_START_
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § dynamic memory                                            ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/

void free(void *) libcesque;
void *malloc(size_t) attributeallocsize((1)) mallocesque;
void *calloc(size_t, size_t) attributeallocsize((1, 2)) mallocesque;
void *memalign(size_t, size_t) attributeallocalign((1))
    attributeallocsize((2)) returnspointerwithnoaliases libcesque __wur;
void *realloc(void *, size_t) reallocesque;
void *realloc_in_place(void *, size_t) reallocesque;
void *reallocarray(void *, size_t, size_t) __wur;
void *valloc(size_t) attributeallocsize((1)) vallocesque;
void *pvalloc(size_t) vallocesque;
char *strdup(const char *) paramsnonnull() mallocesque;
char *strndup(const char *, size_t) paramsnonnull() mallocesque;
void *aligned_alloc(size_t, size_t) attributeallocalign((1))
    attributeallocsize((2)) returnspointerwithnoaliases libcesque __wur;
int posix_memalign(void **, size_t, size_t) libcesque;

int mallopt(int, int) libcesque;
int malloc_trim(size_t) libcesque;
size_t bulk_free(void **, size_t) libcesque;
size_t malloc_usable_size(void *) libcesque;
void **independent_calloc(size_t, size_t, void **) libcesque;
void **independent_comalloc(size_t, size_t *, void **) libcesque;

wchar_t *wcsdup(const wchar_t *) strlenesque __wur;

struct mallinfo {
  size_t arena;    /* non-mmapped space allocated from system */
  size_t ordblks;  /* number of free chunks */
  size_t smblks;   /* always 0 */
  size_t hblks;    /* always 0 */
  size_t hblkhd;   /* space in mmapped regions */
  size_t usmblks;  /* maximum total allocated space */
  size_t fsmblks;  /* always 0 */
  size_t uordblks; /* total allocated space */
  size_t fordblks; /* total free space */
  size_t keepcost; /* releasable (via malloc_trim) space */
};

struct mallinfo mallinfo(void) libcesque;

size_t malloc_footprint(void) libcesque;
size_t malloc_max_footprint(void) libcesque;
size_t malloc_footprint_limit(void) libcesque;
size_t malloc_set_footprint_limit(size_t) libcesque;
void malloc_inspect_all(void (*)(void *, void *, size_t, void *), void *);

COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_MEM_MEM_H_ */