// ==========================================================================
//                 SeqAn - The Library for Sequence Analysis
// ==========================================================================
// Copyright (c) 2006-2010, Knut Reinert, FU Berlin
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * 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.
//     * Neither the name of Knut Reinert or the FU Berlin nor the names of
//       its contributors may be used to endorse or promote products derived
//       from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 KNUT REINERT OR THE FU BERLIN 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.
//
// ==========================================================================
// Author: Manuel Holtgrewe <manuel.holtgrewe@fu-berlin.de>
// ==========================================================================
// This module contains simple, generic support code for parallelism in
// SeqAn. It mainly defines the macros SEQAN_ENABLE_PARALLELISM and
// SEQAN_PRAGMA_IF_PARALLEL.
// ==========================================================================

#ifndef SEQAN_BASIC_BASIC_PARALLELISM_H_
#define SEQAN_BASIC_BASIC_PARALLELISM_H_

/* By default, parallelism is enabled if OpenMP is activated.
 */
#if !defined(SEQAN_ENABLE_PARALLELISM)
#if defined(_OPENMP)
#define SEQAN_ENABLE_PARALLELISM 1
#else  // defined(_OPENMP)
#define SEQAN_ENABLE_PARALLELISM 0
#endif  // defined(_OPENMP)
#endif  // !defined(SEQAN_ENABLE_PARALLELISM)


/* The SEQAN_PRAGMA_IF_PARALLEL macro expands to a pragma as in the argument
 * if SEQAN_ENABLE_PARALLELISM is 1.
 */
#if SEQAN_ENABLE_PARALLELISM
// SEQAN_MKSTRING_() comes from basic_testing.h, so include before this header.
#define SEQAN_PRAGMA_IF_PARALLEL(arg) \
  Pragma_(SEQAN_MKSTRING_(arg))
#else  // SEQAN_ENABLE_PARALLELISM
#define SEQAN_PRAGMA_IF_PARALLEL
#endif  // SEQAN_ENABLE_PARALLELISM

#endif  // SEQAN_BASIC_BASIC_PARALLELISM_H_
