1 #include "locale_impl.h"
2 #include "pthread_impl.h"
5 locale_t __uselocale(locale_t new)
7 pthread_t self = __pthread_self();
8 locale_t old = self->locale;
9 locale_t global = &libc.global_locale;
11 if (new == LC_GLOBAL_LOCALE) new = global;
13 if (new && new != old) {
15 if (new == global) a_dec(&libc.uselocale_cnt);
16 else if (!new->ctype_utf8) adj++;
17 if (old == global) a_inc(&libc.uselocale_cnt);
18 else if (!old->ctype_utf8) adj--;
19 a_fetch_add(&libc.bytelocale_cnt_minus_1, adj);
23 return old == global ? LC_GLOBAL_LOCALE : old;
26 weak_alias(__uselocale, uselocale);