4.115
Last change
on this file since c499856 was
c499856,
checked in by Chris Johns <chrisj@…>, on 03/20/14 at 21:10:47
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Change all references of rtems.com to rtems.org.
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Property mode set to
100644
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File size:
978 bytes
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1 | /** |
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2 | * @file |
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3 | * |
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4 | * @ingroup ScoreFreechain |
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5 | * |
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6 | * @brief Freechain Handler Implementation |
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7 | */ |
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8 | |
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9 | /* |
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10 | * Copyright (c) 2013 Gedare Bloom. |
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11 | * |
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12 | * The license and distribution terms for this file may be |
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13 | * found in the file LICENSE in this distribution or at |
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14 | * http://www.rtems.org/license/LICENSE. |
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15 | */ |
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16 | |
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17 | #if HAVE_CONFIG_H |
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18 | #include "config.h" |
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19 | #endif |
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20 | |
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21 | #include <rtems/score/freechain.h> |
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22 | #include <rtems/score/chainimpl.h> |
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23 | |
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24 | void _Freechain_Initialize( |
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25 | Freechain_Control *freechain, |
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26 | Freechain_Extend extend |
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27 | ) |
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28 | { |
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29 | _Chain_Initialize_empty( &freechain->Freechain ); |
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30 | freechain->extend = extend; |
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31 | } |
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32 | |
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33 | void *_Freechain_Get(Freechain_Control *freechain) |
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34 | { |
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35 | if ( _Chain_Is_empty( &freechain->Freechain ) ) { |
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36 | if ( !( *freechain->extend )( freechain ) ) { |
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37 | return NULL; |
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38 | } |
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39 | } |
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40 | |
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41 | return _Chain_Get_first_unprotected( &freechain->Freechain ); |
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42 | } |
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43 | |
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44 | void _Freechain_Put( Freechain_Control *freechain, void *node ) |
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45 | { |
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46 | _Chain_Prepend_unprotected( &freechain->Freechain, node ); |
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47 | } |
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