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Diffstat (limited to 'gcc-4.9/libcilkrts/runtime/pedigrees.h')
-rw-r--r-- | gcc-4.9/libcilkrts/runtime/pedigrees.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/gcc-4.9/libcilkrts/runtime/pedigrees.h b/gcc-4.9/libcilkrts/runtime/pedigrees.h new file mode 100644 index 000000000..3f6ebb977 --- /dev/null +++ b/gcc-4.9/libcilkrts/runtime/pedigrees.h @@ -0,0 +1,130 @@ +/* pedigrees.h -*-C++-*- + * + ************************************************************************* + * + * @copyright + * Copyright (C) 2009-2013, 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. + **************************************************************************/ + +#ifndef INCLUDED_PEDIGREES_DOT_H +#define INCLUDED_PEDIGREES_DOT_H + + +#include <cilk/common.h> +#include <internal/abi.h> + +#include "rts-common.h" +#include "global_state.h" +#include "os.h" + +__CILKRTS_BEGIN_EXTERN_C + +/** + * @file pedigrees.h + * + * @brief pedigrees.h declares common routines related to pedigrees + * and the pedigree API. + */ + + +/** + * @brief Sets the leaf pedigree node for the current user thread. + * + * A typical implementation stores this pedigree node in thread-local + * storage. + * + * Preconditions: + * - Current thread should be a user thread. + * + * @param leaf The pedigree node to store as a leaf. + */ +COMMON_PORTABLE +void __cilkrts_set_pedigree_leaf(__cilkrts_pedigree* leaf); + + +/** + * Load the pedigree leaf node from thread-local storage into the + * current user worker. This method should execute as a part of + * binding the user thread to a worker. + * + * Preconditions: + * + * - w should be the worker for the current thread + * - w should be a user thread. + */ +COMMON_PORTABLE +void load_pedigree_leaf_into_user_worker(__cilkrts_worker *w); + +/** + * Save the pedigree leaf node from the worker into thread-local + * storage. This method should execute as part of unbinding a user + * thread from a worker. + * + * Preconditions: + * + * - w should be the worker for the current thread + * - w should be a user thread. + */ +COMMON_PORTABLE +void save_pedigree_leaf_from_user_worker(__cilkrts_worker *w); + + + +/** + * Update pedigree for a worker when leaving a frame. + * + * If this is the frame of a spawn helper (indicated by the + * CILK_FRAME_DETACHED flag) we must update the pedigree. The + * pedigree points to nodes allocated on the stack. Failing to + * update it will result in a accvio/segfault if the pedigree is + * walked. This must happen for all spawn helper frames, even if + * we're processing an exception. + */ +COMMON_PORTABLE +inline void update_pedigree_on_leave_frame(__cilkrts_worker *w, + __cilkrts_stack_frame *sf) +{ + // Update the worker's pedigree information if this is an ABI 1 or later + // frame + if (CILK_FRAME_VERSION_VALUE(sf->flags) >= 1) + { + w->pedigree.rank = sf->spawn_helper_pedigree.rank + 1; + w->pedigree.parent = sf->spawn_helper_pedigree.parent; + } +} + + + +__CILKRTS_END_EXTERN_C + +#endif // ! defined(INCLUDED_PEDIGREES_DOT_H) |