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/*
* This file is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2,
* as published by the Free Software Foundation.
*
* In addition to the permissions in the GNU General Public License,
* the authors give you unlimited permission to link the compiled
* version of this file into combinations with other programs,
* and to distribute those combinations without any restriction
* coming from the use of this file. (The General Public License
* restrictions do apply in other respects; for example, they cover
* modification of the file, and distribution when not linked into
* a combined executable.)
*
* This file is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef INCLUDE_git_thread_utils_h__
#define INCLUDE_git_thread_utils_h__
/*
* How TLS works is compiler+platform dependant
* Sources: http://en.wikipedia.org/wiki/Thread-Specific_Storage
* http://predef.sourceforge.net/precomp.html
*/
#ifdef GIT_THREADS
# define GIT_HAS_TLS 1
/* No TLS in Cygwin */
# if defined(__CHECKER__) || defined(__CYGWIN__)
# undef GIT_HAS_TLS
# define GIT_TLS
/* No TLS in Mach binaries for Mac OS X */
# elif defined(__APPLE__) && defined(__MACH__)
# undef GIT_TLS
# define GIT_TLS
/* Normal TLS for GCC */
# elif defined(__GNUC__) || \
defined(__SUNPRO_C) || \
defined(__SUNPRO_CC) || \
defined(__xlc__) || \
defined(__xlC__)
# define GIT_TLS __thread
/* ICC may run on Windows or Linux */
# elif defined(__INTEL_COMPILER)
# if defined(_WIN32) || defined(_WIN32_CE)
# define GIT_TLS __declspec(thread)
# else
# define GIT_TLS __thread
# endif
/* Declspec for MSVC in Win32 */
# elif defined(_WIN32) || \
defined(_WIN32_CE) || \
defined(__BORLANDC__)
# define GIT_TLS __declspec(thread)
/* Other platform; no TLS */
# else
# undef GIT_HAS_TLS
# define GIT_TLS /* nothing: tls vars are thread-global */
# endif
#else /* Disable TLS if libgit2 is not threadsafe */
# define GIT_TLS
#endif /* GIT_THREADS */
#endif /* INCLUDE_git_thread_utils_h__ */
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