Function create_mspace

system/lib/dlmalloc.c:5524–5541

}

mspace create_mspace(size_t capacity, int locked) {
    mstate m = 0;
    size_t msize;
    ensure_initialization();
    msize = pad_request(sizeof(struct malloc_state));
    if (capacity < (size_t) -(msize + TOP_FOOT_SIZE + mparams.page_size)) {
        size_t rs = ((capacity == 0)? mparams.granularity :
                     (capacity + TOP_FOOT_SIZE + msize));
        size_t tsize = granularity_align(rs);
        char* tbase = (char*)(CALL_MMAP(tsize));
        if (tbase != CMFAIL) {
            m = init_user_mstate(tbase, tsize);
            m->seg.sflags = USE_MMAP_BIT;
            set_lock(m, locked);
        }
    }
    return (mspace)m;
}

mspace create_mspace_with_base(void* base, size_t capacity, int locked) {
    mstate m = 0;