Cleanup of xlocale:

- Address performance regressions encountered by das@ by caching per-thread
  data in TLS where available.
- Add a __NO_TLS flag to cdefs.h to indicate where not available.
- Reorganise the xlocale.h definitions into xlocale/*.h so that they can be
  included from multiple places.
- Export the POSIX2008 subset of xlocale when POSIX2008 says it should be
  exported, independently of whether xlocale.h is included.
- Fix the bug where programs using ctype functions always assumed ASCII unless
  recompiled.
- Fix some style(9) violations.

Reviewed by:	brooks (mentor)
Approved by:	dim (mentor)

1 files changed, 61 insertions, 0 deletions

diff --git a/include/xlocale/_string.h b/include/xlocale/_string.h
new file mode 100644
index 0000000..2627280
--- /dev/null
+++ b/include/xlocale/_string.h
@@ -0,0 +1,61 @@
+/*-
+ * Copyright (c) 2011, 2012 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _LOCALE_T_DEFINED
+#define _LOCALE_T_DEFINED
+typedef struct	_xlocale *locale_t;
+#endif
+
+/*
+ * This file is included from both string.h and xlocale.h.  We need to expose
+ * the declarations unconditionally if we are included from xlocale.h, but only
+ * if we are in POSIX2008 mode if included from string.h.
+ */
+
+#ifndef _XLOCALE_STRING1_H
+#define _XLOCALE_STRING1_H
+
+/*
+ * POSIX2008 functions
+ */
+int	 strcoll_l(const char *, const char *, locale_t);
+size_t	 strxfrm_l(char *, const char *, size_t, locale_t);
+#endif /* _XLOCALE_STRING1_H */
+
+/*
+ * xlocale extensions
+ */
+#ifdef _XLOCALE_H_
+#ifndef _XLOCALE_STRING2_H
+#define _XLOCALE_STRING2_H
+int	 strcasecmp_l(const char *, const char *, locale_t);
+char	*strcasestr_l(const char *, const char *, locale_t);
+int	 strncasecmp_l(const char *, const char *, size_t, locale_t);
+
+#endif /* _XLOCALE_STRING2_H */
+#endif /* _XLOCALE_H_ */