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George Hotz
68 lines
2.2 KiB
C++
68 lines
2.2 KiB
C++
// $Id$
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# ifndef CPPAD_LOCAL_SET_GET_IN_PARALLEL_HPP
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# define CPPAD_LOCAL_SET_GET_IN_PARALLEL_HPP
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/* --------------------------------------------------------------------------
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CppAD: C++ Algorithmic Differentiation: Copyright (C) 2003-16 Bradley M. Bell
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CppAD is distributed under multiple licenses. This distribution is under
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the terms of the
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Eclipse Public License Version 1.0.
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A copy of this license is included in the COPYING file of this distribution.
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Please visit http://www.coin-or.org/CppAD/ for information on other licenses.
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-------------------------------------------------------------------------- */
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# include <cassert>
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# include <cppad/configure.hpp>
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namespace CppAD { namespace local { // BEGIN_CPPAD_LOCAL_NAMESPACE
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/*!
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\file set_get_in_parallel.hpp
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File used to set and get user in_parallel routine.
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*/
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/*!
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Set and call the routine that determine if we are in parallel execution mode.
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\return
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value retuned by most recent setting for in_parallel_new.
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If set is true,
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or the most recent setting is CPPAD_NULL (its initial value),
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the return value is false.
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Otherwise the function corresponding to the most recent setting
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is called and its value returned by set_get_in_parallel.
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\param in_parallel_new [in]
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If set is false, in_parallel_new it is not used.
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Otherwise, the current value of in_parallel_new becomes the
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most recent setting for in_parallel_user.
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\param set
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If set is true, then parallel_new is becomes the most
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recent setting for this set_get_in_parallel.
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In this case, it is assumed that we are currently in sequential execution mode.
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*/
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static bool set_get_in_parallel(
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bool (*in_parallel_new)(void) ,
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bool set = false )
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{ static bool (*in_parallel_user)(void) = CPPAD_NULL;
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if( set )
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{ in_parallel_user = in_parallel_new;
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// Doing a raw assert in this case because set_get_in_parallel is used
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// by ErrorHandler and hence cannot use ErrorHandler.
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// CPPAD_ASSERT_UNKNOWN( in_parallel_user() == false )
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assert(in_parallel_user == CPPAD_NULL || in_parallel_user() == false);
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return false;
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}
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//
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if( in_parallel_user == CPPAD_NULL )
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return false;
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//
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return in_parallel_user();
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}
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} } // END_CPPAD_LOCAL_NAMESPACE
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# endif
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