1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
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)
|
