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| | #include "locale_impl.h"
#include "pthread_impl.h"
#include "libc.h"
locale_t __uselocale(locale_t new)
{
pthread_t self = __pthread_self();
locale_t old = self->locale;
locale_t global = &libc.global_locale;
if (new == LC_GLOBAL_LOCALE) new = global;
if (new && new != old) {
int adj = 0;
if (new == global) a_dec(&libc.uselocale_cnt);
else if (!new->ctype_utf8) adj++;
if (old == global) a_inc(&libc.uselocale_cnt);
else if (!old->ctype_utf8) adj--;
a_fetch_add(&libc.bytelocale_cnt_minus_1, adj);
self->locale = new;
}
return old == global ? LC_GLOBAL_LOCALE : old;
}
weak_alias(__uselocale, uselocale);
|