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111 lines
4.2 KiB
111 lines
4.2 KiB
/* /////////////////////////////////////////////////////////////////////////
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* File: pantheios/internal/threading.h
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*
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* Purpose: Detects whether the library is being built single- or
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* multi-threaded.
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*
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* Created: 20th November 2007
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* Updated: 18th March 2012
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*
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* Home: http://www.pantheios.org/
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*
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* Copyright (c) 2007-2012, Matthew Wilson and Synesis Software
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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 are
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* met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* 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 the
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* documentation and/or other materials provided with the distribution.
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* - Neither the names of Matthew Wilson and Synesis Software nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* ////////////////////////////////////////////////////////////////////// */
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/** \file pantheios/internal/threading.h
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*
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* \brief [C, C++] INTERNAL FILE: Detects whether the library is being built
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* single- or multi-threaded.
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*/
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#ifndef PANTHEIOS_INCL_PANTHEIOS_INTERNAL_H_THREADING
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#define PANTHEIOS_INCL_PANTHEIOS_INTERNAL_H_THREADING
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/* /////////////////////////////////////////////////////////////////////////
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* Includes
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*/
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#ifndef PANTHEIOS_INCL_PANTHEIOS_H_PANTHEIOS
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# include <pantheios/pantheios.h>
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#endif /* !PANTHEIOS_INCL_PANTHEIOS_H_PANTHEIOS */
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#ifndef PLATFORMSTL_INCL_PLATFORMSTL_H_PLATFORMSTL
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# include <platformstl/platformstl.h>
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#endif /* !PLATFORMSTL_INCL_PLATFORMSTL_H_PLATFORMSTL */
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#ifndef PLATFORMSTL_INCL_PLATFORMSTL_SYNCH_UTIL_H_FEATURES
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# include <platformstl/synch/util/features.h>
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#endif /* !PLATFORMSTL_INCL_PLATFORMSTL_SYNCH_UTIL_H_FEATURES */
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/* /////////////////////////////////////////////////////////////////////////
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* Feature discrimination
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*/
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#ifdef PANTHEIOS_MT
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# undef PANTHEIOS_MT
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#endif /* PANTHEIOS_MT */
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#ifdef PANTHEIOS_MT_HAS_ATOMIC_INTEGER_OPERATIONS
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# undef PANTHEIOS_MT_HAS_ATOMIC_INTEGER_OPERATIONS
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#endif /* PANTHEIOS_MT_HAS_ATOMIC_INTEGER_OPERATIONS */
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/* Detect whether we're multithreaded */
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#if defined(PANTHEIOS_FORCE_MT)
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# define PANTHEIOS_MT
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#elif !defined(PANTHEIOS_NO_MT)
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# if defined(PLATFORMSTL_OS_IS_UNIX)
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# if defined(UNIXSTL_USING_PTHREADS)
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# define PANTHEIOS_MT
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# endif /* UNIXSTL_USING_PTHREADS */
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# elif defined(PLATFORMSTL_OS_IS_WINDOWS)
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# if defined(__MT__) || \
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defined(_REENTRANT) || \
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defined(_MT)
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# define PANTHEIOS_MT
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# endif /* ?? mt ?? */
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# else /* ? OS */
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# error Platform is not yet discriminated
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# endif /* OS */
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#endif /* PANTHEIOS_FORCE_MT || PANTHEIOS_NO_MT */
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/* Detect whether, if we're multithreaded, we're using atomic integer ops */
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#ifdef PANTHEIOS_MT
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# if defined(PLATFORMSTL_HAS_ATOMIC_INTEGER_OPERATIONS) && \
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!defined(PANTHEIOS_FORCE_NO_ATOMIC_INTEGER_OPERATIONS)
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# define PANTHEIOS_MT_HAS_ATOMIC_INTEGER_OPERATIONS
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# endif
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#endif /* PANTHEIOS_MT */
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/* ////////////////////////////////////////////////////////////////////// */
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#endif /* PANTHEIOS_INCL_PANTHEIOS_INTERNAL_H_THREADING */
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/* ///////////////////////////// end of file //////////////////////////// */
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