1 | /* userext.inl |
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2 | * |
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3 | * This file contains the macro implementation of the inlined routines |
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4 | * from the User Extension Handler |
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5 | * |
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6 | * COPYRIGHT (c) 1989-1997. |
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7 | * On-Line Applications Research Corporation (OAR). |
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8 | * Copyright assigned to U.S. Government, 1994. |
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9 | * |
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10 | * The license and distribution terms for this file may in |
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11 | * the file LICENSE in this distribution or at |
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12 | * http://www.OARcorp.com/rtems/license.html. |
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13 | * |
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14 | * $Id$ |
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15 | */ |
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16 | |
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17 | #ifndef __USER_EXTENSIONS_inl |
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18 | #define __USER_EXTENSIONS_inl |
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19 | |
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20 | /*PAGE |
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21 | * |
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22 | * _User_extensions_Handler_initialization |
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23 | * |
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24 | */ |
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25 | |
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26 | #define _User_extensions_Handler_initialization( _initial_extensions ) \ |
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27 | { \ |
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28 | _Chain_Initialize_empty( &_User_extensions_List ); \ |
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29 | \ |
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30 | if ( (_initial_extensions) ) { \ |
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31 | _User_extensions_Initial.Callouts = *(_initial_extensions); \ |
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32 | _Chain_Append( \ |
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33 | &_User_extensions_List, &_User_extensions_Initial.Node ); \ |
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34 | } \ |
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35 | } |
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36 | |
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37 | /*PAGE |
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38 | * |
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39 | * _User_extensions_Add_set |
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40 | */ |
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41 | |
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42 | #define _User_extensions_Add_set( _the_extension, _extension_table ) \ |
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43 | do { \ |
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44 | (_the_extension)->Callouts = *(_extension_table); \ |
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45 | \ |
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46 | _Chain_Append( &_User_extensions_List, &(_the_extension)->Node ); \ |
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47 | } while ( 0 ) |
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48 | |
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49 | /*PAGE |
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50 | * |
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51 | * _User_extensions_Add_API_set |
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52 | */ |
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53 | |
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54 | #define _User_extensions_Add_API_set( _the_extension ) \ |
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55 | _Chain_Prepend( &_User_extensions_List, &(_the_extension)->Node ) |
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56 | |
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57 | |
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58 | /*PAGE |
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59 | * |
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60 | * _User_extensions_Remove_set |
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61 | */ |
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62 | |
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63 | #define _User_extensions_Remove_set( _the_extension ) \ |
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64 | _Chain_Extract( &(_the_extension)->Node ) |
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65 | |
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66 | /*PAGE |
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67 | * |
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68 | * _User_extensions_Run_list_forward |
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69 | * |
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70 | * NOTE: No parentheses around macro names here to avoid |
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71 | * messing up the name and function call expansion. |
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72 | */ |
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73 | |
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74 | #define _User_extensions_Run_list_forward( _name, _arguments ) \ |
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75 | do { \ |
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76 | Chain_Node *the_node; \ |
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77 | User_extensions_Control *the_extension; \ |
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78 | \ |
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79 | for ( the_node = _User_extensions_List.first ; \ |
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80 | !_Chain_Is_tail( &_User_extensions_List, the_node ) ; \ |
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81 | the_node = the_node->next ) { \ |
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82 | the_extension = (User_extensions_Control *) the_node; \ |
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83 | \ |
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84 | if ( the_extension->Callouts.## _name != NULL ) \ |
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85 | (*the_extension->Callouts.## _name) _arguments; \ |
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86 | \ |
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87 | } \ |
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88 | \ |
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89 | } while ( 0 ) |
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90 | |
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91 | /*PAGE |
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92 | * |
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93 | * _User_extensions_Run_list_backward |
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94 | * |
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95 | * NOTE: No parentheses around macro names here to avoid |
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96 | * messing up the name and function call expansion. |
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97 | */ |
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98 | |
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99 | #define _User_extensions_Run_list_backward( _name, _arguments ) \ |
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100 | do { \ |
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101 | Chain_Node *the_node; \ |
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102 | User_extensions_Control *the_extension; \ |
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103 | \ |
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104 | for ( the_node = _User_extensions_List.last ; \ |
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105 | !_Chain_Is_head( &_User_extensions_List, the_node ) ; \ |
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106 | the_node = the_node->previous ) { \ |
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107 | the_extension = (User_extensions_Control *) the_node; \ |
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108 | \ |
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109 | if ( the_extension->Callouts.## _name != NULL ) \ |
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110 | (*the_extension->Callouts.## _name) _arguments; \ |
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111 | \ |
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112 | } \ |
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113 | \ |
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114 | } while ( 0 ) |
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115 | |
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116 | /*PAGE |
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117 | * |
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118 | * _User_extensions_Thread_switch |
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119 | * |
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120 | */ |
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121 | |
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122 | #define _User_extensions_Thread_switch( _executing, _heir ) \ |
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123 | _User_extensions_Run_list_forward(thread_switch, (_executing, _heir) ) |
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124 | |
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125 | #endif |
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126 | /* end of include file */ |
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