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81 lines
2.4 KiB
C
81 lines
2.4 KiB
C
/*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, version 2,
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* as published by the Free Software Foundation.
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*
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* In addition to the permissions in the GNU General Public License,
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* the authors give you unlimited permission to link the compiled
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* version of this file into combinations with other programs,
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* and to distribute those combinations without any restriction
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* coming from the use of this file. (The General Public License
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* restrictions do apply in other respects; for example, they cover
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* modification of the file, and distribution when not linked into
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* a combined executable.)
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*
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* This file is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef INCLUDE_git_thread_utils_h__
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#define INCLUDE_git_thread_utils_h__
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/*
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* How TLS works is compiler+platform dependant
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* Sources: http://en.wikipedia.org/wiki/Thread-Specific_Storage
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* http://predef.sourceforge.net/precomp.html
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*/
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#define GIT_HAS_TLS 1
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#define GIT_HAS_PTHREAD 1
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#if defined(__APPLE__) && defined(__MACH__)
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# undef GIT_TLS
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#elif defined(__GNUC__) || \
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defined(__SUNPRO_C) || \
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defined(__SUNPRO_CC) || \
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defined(__xlc__) || \
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defined(__xlC__)
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# define GIT_TLS __thread
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#elif defined(__INTEL_COMPILER)
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# if defined(_WIN32) || defined(_WIN32_CE)
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# define GIT_TLS __declspec(thread)
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# undef GIT_HAS_PTHREAD
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# else
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# define GIT_TLS __thread
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# endif
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#elif defined(_WIN32) || \
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defined(_WIN32_CE) || \
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defined(__BORLANDC__)
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# define GIT_TLS __declspec(thread)
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# undef GIT_HAS_PTHREAD
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#else
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# undef GIT_HAS_TLS
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# undef GIT_HAS_PTHREAD
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# define GIT_TLS /* nothing: tls vars are thread-global */
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#endif
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/* sparse and cygwin don't grok thread-local variables */
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#if defined(__CHECKER__) || defined(__CYGWIN__)
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# undef GIT_HAS_TLS
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# undef GIT_TLS
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# define GIT_TLS
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#endif
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#ifdef GIT_HAS_PTHREAD
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# define GIT_THREADS 1
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#else
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# undef GIT_THREADS
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#endif
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#endif /* INCLUDE_git_thread_utils_h__ */
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