/** As memdup, but returns the memory from <b>area</b>. */
void *
memarea_memdup(memarea_t *area, const void *s, size_t n)
{
char *result = memarea_alloc(area, n);
memcpy(result, s, n);
return result;
}
/** As memarea_alloc(), but clears the memory it returns. */
void *
memarea_alloc_zero(memarea_t *area, size_t sz)
{
void *result = memarea_alloc(area, sz);
memset(result, 0, sz);
return result;
}
thread_list_t *new_thread_list(int tid){
thread_list_t *list = memarea_alloc(sizeof(thread_list_t));
if (list) {
list->tid = tid;
}
return list;
}
group_list_t *new_group_list(char *name){
group_list_t *list = memarea_alloc(sizeof(group_list_t));
if (list) {
list->name = malloc(strlen(name));
strcpy(list->name, name);
list->thread_list = NULL;
}
return list;
}
/** As strndup, but returns the memory from <b>area</b>. */
char *
memarea_strndup(memarea_t *area, const char *s, size_t n)
{
size_t ln = 0;
char *result;
tor_assert(n < SIZE_T_CEILING);
for (ln = 0; ln < n && s[ln]; ++ln)
;
result = memarea_alloc(area, ln+1);
memcpy(result, s, ln);
result[ln]='\0';
return result;
}
/** As strndup, but returns the memory from <b>area</b>. */
char *
memarea_strndup(memarea_t *area, const char *s, size_t n)
{
size_t ln;
char *result;
const char *cp, *end = s+n;
for (cp = s; cp < end && *cp; ++cp)
;
/* cp now points to s+n, or to the 0 in the string. */
ln = cp-s;
result = memarea_alloc(area, ln+1);
memcpy(result, s, ln);
result[ln]='\0';
return result;
}
