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e0cf3b9a3c
One of the aspects of CloudABI is that it aims to help you write code that is thread-safe out of the box. This is very important if you want to write libraries that are easy to reuse. For CloudABI we decided to not provide the thread-unsafe functions. So far this is working out pretty well, as thread-unsafety issues are detected really early on. The following patch adds a knob to libc++, _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS, that can be set to disable thread-unsafe functions that can easily be avoided in practice. The following functions are not thread-safe: - <clocale>: locale handles should be preferred over setlocale(). - <cstdlib>: mbrlen(), mbrtowc() and wcrtomb() should be preferred over their non-restartable counterparts. - <ctime>: asctime(), ctime(), gmtime() and localtime() are not thread-safe. The first two are also deprecated by POSIX. Differential Revision: http://reviews.llvm.org/D8703 Reviewed by: marshall llvm-svn: 240527
56 lines
985 B
C++
56 lines
985 B
C++
// -*- C++ -*-
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//===--------------------------- clocale ----------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_CLOCALE
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#define _LIBCPP_CLOCALE
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/*
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clocale synopsis
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Macros:
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LC_ALL
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LC_COLLATE
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LC_CTYPE
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LC_MONETARY
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LC_NUMERIC
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LC_TIME
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NULL
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namespace std
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{
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struct lconv;
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char* setlocale(int category, const char* locale);
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lconv* localeconv();
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} // std
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*/
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#include <__config>
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#include <locale.h>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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#pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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using ::lconv;
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#ifndef _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS
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using ::setlocale;
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#endif
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using ::localeconv;
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP_CLOCALE
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