1 | /* thread.inl |
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2 | * |
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3 | * This file contains the macro implementation of the inlined |
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4 | * routines from the Thread handler. |
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5 | * |
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6 | * COPYRIGHT (c) 1989-1999. |
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7 | * On-Line Applications Research Corporation (OAR). |
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8 | * |
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9 | * The license and distribution terms for this file may be |
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10 | * found in the file LICENSE in this distribution or at |
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11 | * http://www.OARcorp.com/rtems/license.html. |
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12 | * |
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13 | * $Id$ |
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14 | */ |
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15 | |
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16 | #ifndef __THREAD_inl |
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17 | #define __THREAD_inl |
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18 | |
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19 | /*PAGE |
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20 | * |
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21 | * _Thread_Stop_multitasking |
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22 | * |
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23 | */ |
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24 | |
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25 | #define _Thread_Stop_multitasking() \ |
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26 | _Context_Switch( &_Thread_Executing->Registers, &_Thread_BSP_context ); |
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27 | |
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28 | /*PAGE |
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29 | * |
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30 | * _Thread_Is_executing |
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31 | * |
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32 | */ |
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33 | |
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34 | #define _Thread_Is_executing( _the_thread ) \ |
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35 | ( (_the_thread) == _Thread_Executing ) |
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36 | |
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37 | /*PAGE |
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38 | * |
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39 | * _Thread_Is_heir |
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40 | * |
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41 | */ |
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42 | |
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43 | #define _Thread_Is_heir( _the_thread ) \ |
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44 | ( (_the_thread) == _Thread_Heir ) |
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45 | |
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46 | /*PAGE |
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47 | * |
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48 | * _Thread_Is_executing_also_the_heir |
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49 | * |
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50 | */ |
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51 | |
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52 | #define _Thread_Is_executing_also_the_heir() \ |
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53 | ( _Thread_Executing == _Thread_Heir ) |
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54 | |
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55 | /*PAGE |
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56 | * |
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57 | * _Thread_Unblock |
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58 | * |
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59 | */ |
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60 | |
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61 | #define _Thread_Unblock( _the_thread ) \ |
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62 | _Thread_Clear_state( (_the_thread), STATES_BLOCKED ); |
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63 | |
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64 | /*PAGE |
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65 | * |
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66 | * _Thread_Restart_self |
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67 | * |
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68 | */ |
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69 | |
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70 | #if ( CPU_HARDWARE_FP == TRUE ) || ( CPU_SOFTWARE_FP == TRUE ) |
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71 | #define _Thread_Restart_self() \ |
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72 | { \ |
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73 | if ( _Thread_Executing->fp_context != NULL ) \ |
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74 | _Context_Restore_fp( &_Thread_Executing->fp_context ); \ |
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75 | \ |
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76 | _CPU_Context_Restart_self( &_Thread_Executing->Registers ); \ |
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77 | } |
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78 | #else |
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79 | #define _Thread_Restart_self() \ |
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80 | { \ |
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81 | _CPU_Context_Restart_self( &_Thread_Executing->Registers ); \ |
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82 | } |
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83 | #endif |
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84 | |
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85 | /*PAGE |
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86 | * |
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87 | * _Thread_Calculate_heir |
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88 | * |
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89 | */ |
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90 | |
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91 | #define _Thread_Calculate_heir() \ |
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92 | { \ |
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93 | Priority_Control highest; \ |
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94 | \ |
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95 | _Priority_Get_highest( highest ); \ |
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96 | \ |
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97 | _Thread_Heir = (Thread_Control *) _Thread_Ready_chain[ highest ].first; \ |
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98 | } |
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99 | |
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100 | /*PAGE |
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101 | * |
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102 | * _Thread_Is_allocated_fp |
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103 | * |
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104 | */ |
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105 | |
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106 | #if ( CPU_HARDWARE_FP == TRUE ) || ( CPU_SOFTWARE_FP == TRUE ) |
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107 | #define _Thread_Is_allocated_fp( _the_thread ) \ |
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108 | ( (_the_thread) == _Thread_Allocated_fp ) |
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109 | #endif |
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110 | |
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111 | /*PAGE |
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112 | * |
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113 | * _Thread_Deallocate_fp |
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114 | * |
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115 | */ |
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116 | |
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117 | #if ( CPU_HARDWARE_FP == TRUE ) || ( CPU_SOFTWARE_FP == TRUE ) |
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118 | #define _Thread_Deallocate_fp() \ |
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119 | _Thread_Allocated_fp = NULL |
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120 | #endif |
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121 | |
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122 | /*PAGE |
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123 | * |
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124 | * _Thread_Disable_dispatch |
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125 | * |
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126 | */ |
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127 | |
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128 | #define _Thread_Disable_dispatch() \ |
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129 | _Thread_Dispatch_disable_level += 1 |
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130 | |
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131 | /*PAGE |
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132 | * |
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133 | * _Thread_Enable_dispatch |
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134 | * |
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135 | */ |
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136 | |
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137 | #if ( CPU_INLINE_ENABLE_DISPATCH == TRUE ) |
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138 | #define _Thread_Enable_dispatch() \ |
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139 | { if ( (--_Thread_Dispatch_disable_level) == 0 ) \ |
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140 | _Thread_Dispatch(); \ |
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141 | } |
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142 | #endif |
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143 | |
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144 | #if ( CPU_INLINE_ENABLE_DISPATCH == FALSE ) |
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145 | void _Thread_Enable_dispatch( void ); |
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146 | #endif |
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147 | |
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148 | /*PAGE |
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149 | * |
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150 | * _Thread_Unnest_dispatch |
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151 | * |
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152 | */ |
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153 | |
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154 | #define _Thread_Unnest_dispatch() \ |
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155 | _Thread_Dispatch_disable_level -= 1 |
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156 | |
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157 | /*PAGE |
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158 | * |
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159 | * _Thread_Is_dispatching_enabled |
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160 | * |
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161 | */ |
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162 | |
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163 | #define _Thread_Is_dispatching_enabled() \ |
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164 | ( _Thread_Dispatch_disable_level == 0 ) |
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165 | |
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166 | /*PAGE |
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167 | * |
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168 | * _Thread_Is_context_switch_necessary |
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169 | * |
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170 | */ |
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171 | |
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172 | #define _Thread_Is_context_switch_necessary() \ |
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173 | ( _Context_Switch_necessary == TRUE ) |
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174 | |
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175 | /*PAGE |
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176 | * |
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177 | * _Thread_Dispatch_initialization |
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178 | * |
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179 | */ |
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180 | |
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181 | #define _Thread_Dispatch_initialization() \ |
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182 | _Thread_Dispatch_disable_level = 1 |
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183 | |
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184 | /*PAGE |
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185 | * |
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186 | * _Thread_Is_null |
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187 | * |
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188 | */ |
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189 | |
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190 | #define _Thread_Is_null( _the_thread ) \ |
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191 | ( (_the_thread) == NULL ) |
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192 | |
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193 | /* |
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194 | * _Thread_Is_proxy_blocking |
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195 | * |
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196 | */ |
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197 | |
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198 | #define _Thread_Is_proxy_blocking( _code ) \ |
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199 | ( (_code) == THREAD_STATUS_PROXY_BLOCKING ) |
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200 | |
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201 | /* |
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202 | * _Thread_Internal_allocate |
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203 | * |
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204 | */ |
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205 | |
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206 | #define _Thread_Internal_allocate() \ |
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207 | ((Thread_Control *) _Objects_Allocate( &_Thread_Internal_information )) |
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208 | |
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209 | /* |
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210 | * _Thread_Internal_free |
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211 | * |
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212 | */ |
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213 | |
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214 | #define _Thread_Internal_free( _the_task ) \ |
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215 | _Objects_Free( &_Thread_Internal_information, &(_the_task)->Object ) |
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216 | |
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217 | #endif |
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218 | /* end of include file */ |
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