124 lines
4.6 KiB
C++
124 lines
4.6 KiB
C++
/* except.h -*-C++-*-
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*
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*************************************************************************
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*
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* @copyright
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* Copyright (C) 2009-2013, Intel Corporation
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* All rights reserved.
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*
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* @copyright
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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
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, 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
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* 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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* @copyright
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
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* WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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**************************************************************************/
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/**
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* @file except.h
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*
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* @brief Common definitions for the various implementations of exception
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* handling.
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*/
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#ifndef INCLUDED_EXCEPT_DOT_H
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#define INCLUDED_EXCEPT_DOT_H
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#include <cilk/common.h>
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#include <internal/abi.h>
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#include "full_frame.h"
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__CILKRTS_BEGIN_EXTERN_C
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/**
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* OS-dependent information about an exception that's being moved between
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* strands.
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*/
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typedef struct pending_exception_info pending_exception_info;
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/**
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* Merge the right exception record into the left. The left is logically
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* earlier.
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*
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* On entry the left state is synched and can not have an unresolved
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* exception. The merge may result in an unresolved exception.
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*
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* If there is both a right and left exception, the right exception will
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* be disposed of in preference to the left exception, destructing the
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* exception object.
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*
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* @param w The worker that is preparing to resume execution.
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* @param left_exception The exception that would have happened earlier
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* if the code executed serially. Can be NULL if the left strand has not
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* raised an exception.
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* @param right_exception The exception that would have happened later
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* if the code executed serially. Can be NULL if the right strand has not
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* raised an exception.
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*
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* @return NULL if there both the right and left exception are NULL. This
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* indicates that there are no pending exceptions.
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* @return The pending exception that is to be raised to continue searching
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* for a catch block to handle the exception.
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*/
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COMMON_SYSDEP
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struct pending_exception_info *__cilkrts_merge_pending_exceptions(
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__cilkrts_worker *w,
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pending_exception_info *left_exception,
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pending_exception_info *right_exception);
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/**
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* Move the exception information from the worker to the full_frame.
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*
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* @param w The worker which is suspending work on a full_frame.
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* @param ff The full_frame which is being suspended.
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*/
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COMMON_SYSDEP
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void __cilkrts_save_exception_state(__cilkrts_worker *w,
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full_frame *ff);
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/**
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* Function to delete pending exception. This will delete the
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* exception object and then free the stack/fiber.
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*
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* @param w The worker we're running on.
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* @param pei The pending exception to be delete
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* @param delete_object Unused. Should always be 1.
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*/
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void delete_exception_obj (__cilkrts_worker *w,
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struct pending_exception_info *pei,
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int delete_object);
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#ifndef _WIN32
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/* gcc-style exception handling */
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NON_COMMON NORETURN __cilkrts_c_sync_except(__cilkrts_worker *w,
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__cilkrts_stack_frame *sf);
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NON_COMMON void __attribute__((nonnull))
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__cilkrts_gcc_rethrow(__cilkrts_stack_frame *sf);
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#endif
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__CILKRTS_END_EXTERN_C
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#endif // ! defined(INCLUDED_EXCEPT_DOT_H)
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