name=

static VALUE
rb_thread_setname(VALUE thread, VALUE name)
{
#ifdef SET_ANOTHER_THREAD_NAME
    const char *s = "";
#endif
    rb_thread_t *th;
    GetThreadPtr(thread, th);
    if (!NIL_P(name)) {
        rb_encoding *enc;
        StringValueCStr(name);
        enc = rb_enc_get(name);
        if (!rb_enc_asciicompat(enc)) {
            rb_raise(rb_eArgError, "ASCII incompatible encoding (%s)",
                     rb_enc_name(enc));
        }
        name = rb_str_new_frozen(name);
#ifdef SET_ANOTHER_THREAD_NAME
        s = RSTRING_PTR(name);
#endif
    }
    th->name = name;
#if defined(SET_ANOTHER_THREAD_NAME)
    if (threadptr_initialized(th)) {
        SET_ANOTHER_THREAD_NAME(th->thread_id, s);
    }
#endif
    return name;
}