gcc/libcilkrts/runtime/local_state.c

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/* local_state.c -*-C++-*-
*
*************************************************************************
*
* @copyright
* Copyright (C) 2010-2013, Intel Corporation
* All rights reserved.
*
* @copyright
* 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 Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* @copyright
* 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 THE COPYRIGHT
* HOLDER OR CONTRIBUTORS 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.
*
**************************************************************************/
#include "local_state.h"
#include "bug.h"
#include "full_frame.h"
void run_scheduling_stack_fcn(__cilkrts_worker *w)
{
scheduling_stack_fcn_t fcn = w->l->post_suspend;
full_frame *ff2 = w->l->frame_ff;
__cilkrts_stack_frame *sf2 = w->l->suspended_stack;
w->l->post_suspend = 0;
w->l->suspended_stack = 0;
// Conceptually, after clearing w->l->frame_ff,
// w no longer owns the full frame ff.
// The next time another (possibly different) worker takes
// ownership of ff will be at a provably_good_steal on ff.
w->l->frame_ff = NULL;
CILK_ASSERT(fcn);
CILK_ASSERT(ff2);
fcn(w, ff2, sf2);
// After we run the scheduling stack function, we shouldn't
// (still) not have a full frame.
CILK_ASSERT(NULL == w->l->frame_ff);
}
/* End local_state.c */