goto VER_PV;
}
#endif
-
#ifdef USE_LOCALE_NUMERIC
+
{
- const char * const cur_numeric = setlocale(LC_NUMERIC, NULL);
- assert(cur_numeric);
-
- /* XS code can set the locale without us knowing. To protect the
- * version number parsing, which requires the radix character to be a
- * dot, update our records as to what the locale is, so that our
- * existing macro mechanism can correctly change it to a dot and back
- * if necessary. This code is extremely unlikely to be in a loop, so
- * the extra work will have a negligible performance impact. See [perl
- * #121930].
- *
- * If the current locale is a standard one, but we are expecting it to
- * be a different, underlying locale, update our records to make the
- * underlying locale this (standard) one. If the current locale is not
- * a standard one, we should be expecting a non-standard one, the same
- * one that we have recorded as the underlying locale. If not, update
- * our records. */
- if (strEQ(cur_numeric, "C") || strEQ(cur_numeric, "POSIX")) {
- if (! PL_numeric_standard) {
- new_numeric(cur_numeric);
- }
- }
- else if (PL_numeric_standard
- || ! PL_numeric_name
- || strNE(PL_numeric_name, cur_numeric))
- {
- new_numeric(cur_numeric);
+ /* This may or may not be called from code that has switched
+ * locales without letting perl know, therefore we have to find it
+ * from first principals. See [perl #121930]. */
+
+ /* In windows, or not threaded, or not thread-safe, if it isn't C,
+ * set it to C. */
+
+# ifndef USE_POSIX_2008_LOCALE
+
+ const char * locale_name_on_entry;
+
+ LC_NUMERIC_LOCK(0); /* Start critical section */
+
+ locale_name_on_entry = setlocale(LC_NUMERIC, NULL);
+ if ( strNE(locale_name_on_entry, "C")
+ && strNE(locale_name_on_entry, "POSIX"))
+ {
+ setlocale(LC_NUMERIC, "C");
+ }
+ else { /* This value indicates to the restore code that we didn't
+ change the locale */
+ locale_name_on_entry = NULL;
+ }
+
+# else
+
+ const locale_t locale_obj_on_entry = uselocale((locale_t) 0);
+ const char * locale_name_on_entry = NULL;
+ DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
+
+ if (locale_obj_on_entry == LC_GLOBAL_LOCALE) {
+
+ /* in the global locale, we can call system setlocale and if it
+ * isn't C, set it to C. */
+ LC_NUMERIC_LOCK(0);
+
+ locale_name_on_entry = setlocale(LC_NUMERIC, NULL);
+ if ( strNE(locale_name_on_entry, "C")
+ && strNE(locale_name_on_entry, "POSIX"))
+ {
+ setlocale(LC_NUMERIC, "C");
+ }
+ else { /* This value indicates to the restore code that we
+ didn't change the locale */
+ locale_name_on_entry = NULL;
}
}
+ else if (locale_obj_on_entry == PL_underlying_numeric_obj) {
+ /* Here, the locale appears to have been changed to use the
+ * program's underlying locale. Just use our mechanisms to
+ * switch back to C. It might be possible for this pointer to
+ * actually refer to something else if it got released and
+ * reused somehow. But it doesn't matter, our mechanisms will
+ * work even so */
+ STORE_LC_NUMERIC_SET_STANDARD();
+ }
+ else if (locale_obj_on_entry != PL_C_locale_obj) {
+ /* The C object should be unchanged during a program's
+ * execution, so it should be safe to assume it means what it
+ * says, so if we are in it, no locale change is required.
+ * Otherwise, simply use the thread-safe operation. */
+ uselocale(PL_C_locale_obj);
+ }
+
+# endif
+
+ /* Prevent recursed calls from trying to change back */
+ LOCK_LC_NUMERIC_STANDARD();
+
#endif
- { /* Braces needed because macro just below declares a variable */
- DECLARATION_FOR_LC_NUMERIC_MANIPULATION;
- STORE_LC_NUMERIC_SET_STANDARD();
- LOCK_NUMERIC_STANDARD();
+
if (sv) {
- Perl_sv_catpvf(aTHX_ sv, "%.9"NVff, SvNVX(ver));
+ Perl_sv_catpvf(aTHX_ sv, "%.9" NVff, SvNVX(ver));
len = SvCUR(sv);
buf = SvPVX(sv);
}
else {
- len = my_snprintf(tbuf, sizeof(tbuf), "%.9"NVff, SvNVX(ver));
+ len = my_snprintf(tbuf, sizeof(tbuf), "%.9" NVff, SvNVX(ver));
buf = tbuf;
}
- UNLOCK_NUMERIC_STANDARD();
- RESTORE_LC_NUMERIC();
+
+#ifdef USE_LOCALE_NUMERIC
+
+ UNLOCK_LC_NUMERIC_STANDARD();
+
+# ifndef USE_POSIX_2008_LOCALE
+
+ if (locale_name_on_entry) {
+ setlocale(LC_NUMERIC, locale_name_on_entry);
+ }
+
+ LC_NUMERIC_UNLOCK; /* End critical section */
+
+# else
+
+ if (locale_name_on_entry) {
+ setlocale(LC_NUMERIC, locale_name_on_entry);
+ LC_NUMERIC_UNLOCK;
+ }
+ else if (locale_obj_on_entry == PL_underlying_numeric_obj) {
+ RESTORE_LC_NUMERIC();
+ }
+ else if (locale_obj_on_entry != PL_C_locale_obj) {
+ uselocale(locale_obj_on_entry);
+ }
+
+# endif
+
}
+
+#endif /* USE_LOCALE_NUMERIC */
+
while (buf[len-1] == '0' && len > 0) len--;
if ( buf[len-1] == '.' ) len--; /* eat the trailing decimal */
version = savepvn(buf, len);
SV * tsv = *av_fetch(av, 0, 0);
digit = SvIV(tsv);
}
- sv = Perl_newSVpvf(aTHX_ "v%"IVdf, (IV)digit);
+ sv = Perl_newSVpvf(aTHX_ "v%" IVdf, (IV)digit);
for ( i = 1 ; i <= len ; i++ ) {
SV * tsv = *av_fetch(av, i, 0);
digit = SvIV(tsv);
- Perl_sv_catpvf(aTHX_ sv, ".%"IVdf, (IV)digit);
+ Perl_sv_catpvf(aTHX_ sv, ".%" IVdf, (IV)digit);
}
if ( len <= 2 ) { /* short version, must be at least three */
https://perl5.git.perl.org / perl5.git / blobdiff