205 lines
6.7 KiB
Diff
205 lines
6.7 KiB
Diff
diff --git a/libc/bionic/locale.cpp b/libc/bionic/locale.cpp
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new file mode 100644
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index 0000000..4fade84
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--- /dev/null
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+++ b/libc/bionic/locale.cpp
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@@ -0,0 +1,156 @@
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+/*
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+ * Copyright (C) 2008 The Android Open Source Project
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+ * All rights reserved.
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+ *
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+ * Redistribution and use in source and binary forms, with or without
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+ * modification, are permitted provided that the following conditions
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+ * are met:
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+ * * Redistributions of source code must retain the above copyright
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+ * notice, this list of conditions and the following disclaimer.
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+ * * Redistributions in binary form must reproduce the above copyright
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+ * notice, this list of conditions and the following disclaimer in
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+ * the documentation and/or other materials provided with the
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+ * distribution.
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+ *
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+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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+ * SUCH DAMAGE.
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+ */
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+
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+#include <locale.h>
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+#include <pthread.h>
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+#include <stdlib.h>
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+
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+// We currently support a single locale, the "C" locale (also known as "POSIX").
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+
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+struct __locale_t {
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+ // Because we only support one locale, these are just tokens with no data.
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+};
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+
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+static pthread_once_t gLocaleOnce = PTHREAD_ONCE_INIT;
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+static lconv gLocale;
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+
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+static pthread_once_t gUselocaleKeyOnce = PTHREAD_ONCE_INIT;
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+static pthread_key_t gUselocaleKey;
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+
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+static void __locale_init() {
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+ gLocale.decimal_point = const_cast<char*>(".");
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+
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+ char* not_available = const_cast<char*>("");
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+ gLocale.thousands_sep = not_available;
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+ gLocale.grouping = not_available;
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+ gLocale.int_curr_symbol = not_available;
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+ gLocale.currency_symbol = not_available;
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+ gLocale.mon_decimal_point = not_available;
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+ gLocale.mon_thousands_sep = not_available;
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+ gLocale.mon_grouping = not_available;
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+ gLocale.positive_sign = not_available;
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+ gLocale.negative_sign = not_available;
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+
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+ gLocale.int_frac_digits = CHAR_MAX;
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+ gLocale.frac_digits = CHAR_MAX;
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+ gLocale.p_cs_precedes = CHAR_MAX;
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+ gLocale.p_sep_by_space = CHAR_MAX;
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+ gLocale.n_cs_precedes = CHAR_MAX;
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+ gLocale.n_sep_by_space = CHAR_MAX;
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+ gLocale.p_sign_posn = CHAR_MAX;
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+ gLocale.n_sign_posn = CHAR_MAX;
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+ gLocale.int_p_cs_precedes = CHAR_MAX;
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+ gLocale.int_p_sep_by_space = CHAR_MAX;
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+ gLocale.int_n_cs_precedes = CHAR_MAX;
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+ gLocale.int_n_sep_by_space = CHAR_MAX;
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+ gLocale.int_p_sign_posn = CHAR_MAX;
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+ gLocale.int_n_sign_posn = CHAR_MAX;
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+}
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+
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+static void __uselocale_key_init() {
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+ pthread_key_create(&gUselocaleKey, NULL);
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+}
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+
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+static bool __is_supported_locale(const char* locale) {
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+ return (strcmp(locale, "") == 0 || strcmp(locale, "C") == 0 || strcmp(locale, "POSIX") == 0);
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+}
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+
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+static locale_t __new_locale() {
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+ return reinterpret_cast<locale_t>(malloc(sizeof(__locale_t)));
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+}
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+
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+lconv* localeconv() {
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+ pthread_once(&gLocaleOnce, __locale_init);
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+ return &gLocale;
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+}
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+
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+locale_t duplocale(locale_t l) {
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+ locale_t clone = __new_locale();
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+ if (clone != NULL && l != LC_GLOBAL_LOCALE) {
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+ *clone = *l;
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+ }
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+ return clone;
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+}
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+
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+void freelocale(locale_t l) {
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+ free(l);
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+}
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+
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+locale_t newlocale(int category_mask, const char* locale_name, locale_t /*base*/) {
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+ // Is 'category_mask' valid?
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+ if ((category_mask & ~LC_ALL_MASK) != 0) {
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+ errno = EINVAL;
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+ return NULL;
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+ }
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+
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+ if (!__is_supported_locale(locale_name)) {
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+ errno = ENOENT;
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+ return NULL;
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+ }
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+
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+ return __new_locale();
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+}
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+
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+char* setlocale(int category, char const* locale_name) {
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+ // Is 'category' valid?
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+ if (category < LC_CTYPE || category > LC_IDENTIFICATION) {
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+ errno = EINVAL;
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+ return NULL;
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+ }
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+
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+ // Caller just wants to query the current locale?
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+ if (locale_name == NULL) {
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+ return const_cast<char*>("C");
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+ }
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+
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+ // Caller wants one of the mandatory POSIX locales?
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+ if (__is_supported_locale(locale_name)) {
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+ return const_cast<char*>("C");
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+ }
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+
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+ // We don't support any other locales.
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+ errno = ENOENT;
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+ return NULL;
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+}
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+
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+locale_t uselocale(locale_t new_locale) {
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+ pthread_once(&gUselocaleKeyOnce, __uselocale_key_init);
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+
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+ locale_t old_locale = static_cast<locale_t>(pthread_getspecific(gUselocaleKey));
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+
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+ // If this is the first call to uselocale(3) on this thread, we return LC_GLOBAL_LOCALE.
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+ if (old_locale == NULL) {
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+ old_locale = LC_GLOBAL_LOCALE;
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+ }
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+
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+ if (new_locale != NULL) {
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+ pthread_setspecific(gUselocaleKey, new_locale);
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+ }
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+
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+ return old_locale;
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+}
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diff --git a/libc/include/xlocale.h b/libc/include/xlocale.h
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new file mode 100644
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index 0000000..f7eb8f4
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--- /dev/null
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+++ b/libc/include/xlocale.h
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@@ -0,0 +1,36 @@
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+/*
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+ * Copyright (C) 2014 The Android Open Source Project
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+ * All rights reserved.
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+ *
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+ * Redistribution and use in source and binary forms, with or without
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+ * modification, are permitted provided that the following conditions
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+ * are met:
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+ * * Redistributions of source code must retain the above copyright
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+ * notice, this list of conditions and the following disclaimer.
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+ * * Redistributions in binary form must reproduce the above copyright
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+ * notice, this list of conditions and the following disclaimer in
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+ * the documentation and/or other materials provided with the
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+ * distribution.
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+ *
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+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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+ * SUCH DAMAGE.
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+ */
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+
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+#ifndef _XLOCALE_H_
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+#define _XLOCALE_H_
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+
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+/* If we just use void* here, GCC exposes that in error messages. */
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+struct __locale_t;
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+typedef struct __locale_t* locale_t;
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+
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+#endif /* _XLOCALE_H_ */
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