1 | /** |
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2 | * @file |
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3 | * |
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4 | * @brief RTEMS Tasks MP Send Process Packet |
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5 | * @ingroup ClassicTaskMP Task MP Support |
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6 | */ |
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7 | |
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8 | /* |
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9 | * COPYRIGHT (c) 1989-2008. |
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10 | * On-Line Applications Research Corporation (OAR). |
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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.com/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/system.h> |
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22 | #include <rtems/rtems/status.h> |
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23 | #include <rtems/score/mpci.h> |
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24 | #include <rtems/score/mppkt.h> |
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25 | #include <rtems/score/object.h> |
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26 | #include <rtems/rtems/options.h> |
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27 | #include <rtems/rtems/tasks.h> |
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28 | #include <rtems/score/thread.h> |
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29 | #include <rtems/score/watchdog.h> |
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30 | #include <rtems/rtems/support.h> |
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31 | |
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32 | RTEMS_STATIC_ASSERT( |
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33 | sizeof(RTEMS_tasks_MP_Packet) <= MP_PACKET_MINIMUM_PACKET_SIZE, |
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34 | RTEMS_tasks_MP_Packet |
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35 | ); |
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36 | |
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37 | /* |
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38 | * _RTEMS_tasks_MP_Send_process_packet |
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39 | * |
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40 | */ |
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41 | |
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42 | void _RTEMS_tasks_MP_Send_process_packet ( |
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43 | RTEMS_tasks_MP_Remote_operations operation, |
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44 | Objects_Id task_id, |
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45 | rtems_name name |
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46 | ) |
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47 | { |
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48 | RTEMS_tasks_MP_Packet *the_packet; |
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49 | |
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50 | switch ( operation ) { |
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51 | |
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52 | case RTEMS_TASKS_MP_ANNOUNCE_CREATE: |
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53 | case RTEMS_TASKS_MP_ANNOUNCE_DELETE: |
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54 | |
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55 | the_packet = _RTEMS_tasks_MP_Get_packet(); |
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56 | the_packet->Prefix.the_class = MP_PACKET_TASKS; |
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57 | the_packet->Prefix.length = sizeof ( RTEMS_tasks_MP_Packet ); |
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58 | the_packet->Prefix.to_convert = sizeof ( RTEMS_tasks_MP_Packet ); |
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59 | the_packet->operation = operation; |
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60 | the_packet->Prefix.id = task_id; |
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61 | the_packet->name = name; |
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62 | |
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63 | _MPCI_Send_process_packet( MPCI_ALL_NODES, &the_packet->Prefix ); |
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64 | break; |
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65 | |
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66 | case RTEMS_TASKS_MP_SUSPEND_REQUEST: |
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67 | case RTEMS_TASKS_MP_SUSPEND_RESPONSE: |
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68 | case RTEMS_TASKS_MP_RESUME_REQUEST: |
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69 | case RTEMS_TASKS_MP_RESUME_RESPONSE: |
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70 | case RTEMS_TASKS_MP_SET_PRIORITY_REQUEST: |
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71 | case RTEMS_TASKS_MP_SET_PRIORITY_RESPONSE: |
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72 | case RTEMS_TASKS_MP_GET_NOTE_REQUEST: |
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73 | case RTEMS_TASKS_MP_GET_NOTE_RESPONSE: |
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74 | case RTEMS_TASKS_MP_SET_NOTE_REQUEST: |
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75 | case RTEMS_TASKS_MP_SET_NOTE_RESPONSE: |
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76 | break; |
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77 | } |
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78 | } |
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79 | |
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80 | /* |
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81 | * _RTEMS_tasks_MP_Send_request_packet |
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82 | * |
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83 | */ |
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84 | |
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85 | rtems_status_code _RTEMS_tasks_MP_Send_request_packet ( |
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86 | RTEMS_tasks_MP_Remote_operations operation, |
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87 | Objects_Id task_id, |
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88 | rtems_task_priority new_priority, |
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89 | uint32_t notepad, |
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90 | uint32_t note |
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91 | ) |
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92 | { |
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93 | RTEMS_tasks_MP_Packet *the_packet; |
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94 | |
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95 | switch ( operation ) { |
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96 | |
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97 | case RTEMS_TASKS_MP_SUSPEND_REQUEST: |
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98 | case RTEMS_TASKS_MP_RESUME_REQUEST: |
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99 | case RTEMS_TASKS_MP_SET_PRIORITY_REQUEST: |
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100 | case RTEMS_TASKS_MP_GET_NOTE_REQUEST: |
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101 | case RTEMS_TASKS_MP_SET_NOTE_REQUEST: |
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102 | |
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103 | the_packet = _RTEMS_tasks_MP_Get_packet(); |
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104 | the_packet->Prefix.the_class = MP_PACKET_TASKS; |
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105 | the_packet->Prefix.length = sizeof ( RTEMS_tasks_MP_Packet ); |
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106 | the_packet->Prefix.to_convert = sizeof ( RTEMS_tasks_MP_Packet ); |
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107 | the_packet->operation = operation; |
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108 | the_packet->Prefix.id = task_id; |
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109 | the_packet->the_priority = new_priority; |
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110 | the_packet->notepad = notepad; |
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111 | the_packet->note = note; |
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112 | |
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113 | return _MPCI_Send_request_packet( |
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114 | _Objects_Get_node( task_id ), |
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115 | &the_packet->Prefix, |
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116 | STATES_READY /* Not used */ |
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117 | ); |
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118 | break; |
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119 | |
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120 | case RTEMS_TASKS_MP_ANNOUNCE_CREATE: |
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121 | case RTEMS_TASKS_MP_ANNOUNCE_DELETE: |
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122 | case RTEMS_TASKS_MP_SUSPEND_RESPONSE: |
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123 | case RTEMS_TASKS_MP_RESUME_RESPONSE: |
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124 | case RTEMS_TASKS_MP_SET_PRIORITY_RESPONSE: |
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125 | case RTEMS_TASKS_MP_GET_NOTE_RESPONSE: |
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126 | case RTEMS_TASKS_MP_SET_NOTE_RESPONSE: |
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127 | break; |
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128 | |
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129 | } |
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130 | /* |
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131 | * The following line is included to satisfy compilers which |
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132 | * produce warnings when a function does not end with a return. |
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133 | */ |
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134 | return RTEMS_SUCCESSFUL; |
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135 | } |
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136 | |
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137 | /* |
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138 | * _RTEMS_tasks_MP_Send_response_packet |
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139 | * |
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140 | */ |
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141 | |
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142 | void _RTEMS_tasks_MP_Send_response_packet ( |
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143 | RTEMS_tasks_MP_Remote_operations operation, |
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144 | Thread_Control *the_thread |
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145 | ) |
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146 | { |
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147 | RTEMS_tasks_MP_Packet *the_packet; |
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148 | |
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149 | switch ( operation ) { |
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150 | |
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151 | case RTEMS_TASKS_MP_SUSPEND_RESPONSE: |
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152 | case RTEMS_TASKS_MP_RESUME_RESPONSE: |
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153 | case RTEMS_TASKS_MP_SET_PRIORITY_RESPONSE: |
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154 | case RTEMS_TASKS_MP_GET_NOTE_RESPONSE: |
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155 | case RTEMS_TASKS_MP_SET_NOTE_RESPONSE: |
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156 | |
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157 | the_packet = (RTEMS_tasks_MP_Packet *) the_thread->receive_packet; |
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158 | |
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159 | /* |
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160 | * The packet being returned already contains the class, length, and |
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161 | * to_convert fields, therefore they are not set in this routine. |
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162 | */ |
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163 | the_packet->operation = operation; |
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164 | the_packet->Prefix.id = the_packet->Prefix.source_tid; |
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165 | |
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166 | _MPCI_Send_response_packet( |
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167 | _Objects_Get_node( the_packet->Prefix.source_tid ), |
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168 | &the_packet->Prefix |
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169 | ); |
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170 | break; |
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171 | |
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172 | case RTEMS_TASKS_MP_ANNOUNCE_CREATE: |
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173 | case RTEMS_TASKS_MP_ANNOUNCE_DELETE: |
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174 | case RTEMS_TASKS_MP_SUSPEND_REQUEST: |
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175 | case RTEMS_TASKS_MP_RESUME_REQUEST: |
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176 | case RTEMS_TASKS_MP_SET_PRIORITY_REQUEST: |
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177 | case RTEMS_TASKS_MP_GET_NOTE_REQUEST: |
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178 | case RTEMS_TASKS_MP_SET_NOTE_REQUEST: |
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179 | break; |
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180 | |
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181 | } |
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182 | } |
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183 | |
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184 | /* |
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185 | * |
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186 | * _RTEMS_tasks_MP_Process_packet |
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187 | * |
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188 | */ |
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189 | |
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190 | void _RTEMS_tasks_MP_Process_packet ( |
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191 | rtems_packet_prefix *the_packet_prefix |
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192 | ) |
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193 | { |
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194 | RTEMS_tasks_MP_Packet *the_packet; |
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195 | Thread_Control *the_thread; |
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196 | bool ignored; |
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197 | |
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198 | the_packet = (RTEMS_tasks_MP_Packet *) the_packet_prefix; |
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199 | |
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200 | switch ( the_packet->operation ) { |
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201 | |
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202 | case RTEMS_TASKS_MP_ANNOUNCE_CREATE: |
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203 | |
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204 | ignored = _Objects_MP_Allocate_and_open( |
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205 | &_RTEMS_tasks_Information, |
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206 | the_packet->name, |
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207 | the_packet->Prefix.id, |
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208 | true |
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209 | ); |
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210 | |
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211 | _MPCI_Return_packet( the_packet_prefix ); |
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212 | break; |
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213 | |
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214 | case RTEMS_TASKS_MP_ANNOUNCE_DELETE: |
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215 | |
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216 | _Objects_MP_Close( &_RTEMS_tasks_Information, the_packet->Prefix.id ); |
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217 | |
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218 | _MPCI_Return_packet( the_packet_prefix ); |
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219 | break; |
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220 | |
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221 | case RTEMS_TASKS_MP_SUSPEND_REQUEST: |
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222 | |
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223 | the_packet->Prefix.return_code = rtems_task_suspend( |
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224 | the_packet->Prefix.id |
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225 | ); |
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226 | |
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227 | _RTEMS_tasks_MP_Send_response_packet( |
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228 | RTEMS_TASKS_MP_SUSPEND_RESPONSE, |
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229 | _Thread_Executing |
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230 | ); |
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231 | break; |
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232 | |
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233 | case RTEMS_TASKS_MP_SUSPEND_RESPONSE: |
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234 | case RTEMS_TASKS_MP_RESUME_RESPONSE: |
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235 | case RTEMS_TASKS_MP_SET_NOTE_RESPONSE: |
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236 | |
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237 | the_thread = _MPCI_Process_response( the_packet_prefix ); |
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238 | |
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239 | _MPCI_Return_packet( the_packet_prefix ); |
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240 | break; |
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241 | |
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242 | case RTEMS_TASKS_MP_RESUME_REQUEST: |
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243 | |
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244 | the_packet->Prefix.return_code = rtems_task_resume( |
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245 | the_packet->Prefix.id |
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246 | ); |
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247 | |
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248 | _RTEMS_tasks_MP_Send_response_packet( |
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249 | RTEMS_TASKS_MP_RESUME_RESPONSE, |
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250 | _Thread_Executing |
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251 | ); |
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252 | break; |
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253 | |
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254 | case RTEMS_TASKS_MP_SET_PRIORITY_REQUEST: |
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255 | |
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256 | the_packet->Prefix.return_code = rtems_task_set_priority( |
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257 | the_packet->Prefix.id, |
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258 | the_packet->the_priority, |
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259 | &the_packet->the_priority |
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260 | ); |
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261 | |
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262 | _RTEMS_tasks_MP_Send_response_packet( |
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263 | RTEMS_TASKS_MP_SET_PRIORITY_RESPONSE, |
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264 | _Thread_Executing |
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265 | ); |
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266 | break; |
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267 | |
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268 | case RTEMS_TASKS_MP_SET_PRIORITY_RESPONSE: |
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269 | |
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270 | the_thread = _MPCI_Process_response( the_packet_prefix ); |
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271 | |
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272 | *(rtems_task_priority *)the_thread->Wait.return_argument = |
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273 | the_packet->the_priority; |
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274 | |
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275 | _MPCI_Return_packet( the_packet_prefix ); |
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276 | break; |
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277 | |
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278 | case RTEMS_TASKS_MP_GET_NOTE_REQUEST: |
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279 | |
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280 | the_packet->Prefix.return_code = rtems_task_get_note( |
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281 | the_packet->Prefix.id, |
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282 | the_packet->notepad, |
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283 | &the_packet->note |
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284 | ); |
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285 | |
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286 | _RTEMS_tasks_MP_Send_response_packet( |
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287 | RTEMS_TASKS_MP_GET_NOTE_RESPONSE, |
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288 | _Thread_Executing |
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289 | ); |
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290 | break; |
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291 | |
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292 | case RTEMS_TASKS_MP_GET_NOTE_RESPONSE: |
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293 | |
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294 | the_thread = _MPCI_Process_response( the_packet_prefix ); |
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295 | |
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296 | *(uint32_t *)the_thread->Wait.return_argument = the_packet->note; |
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297 | |
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298 | _MPCI_Return_packet( the_packet_prefix ); |
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299 | break; |
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300 | |
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301 | case RTEMS_TASKS_MP_SET_NOTE_REQUEST: |
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302 | |
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303 | the_packet->Prefix.return_code = rtems_task_set_note( |
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304 | the_packet->Prefix.id, |
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305 | the_packet->notepad, |
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306 | the_packet->note |
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307 | ); |
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308 | |
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309 | _RTEMS_tasks_MP_Send_response_packet( |
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310 | RTEMS_TASKS_MP_SET_NOTE_RESPONSE, |
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311 | _Thread_Executing |
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312 | ); |
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313 | break; |
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314 | } |
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315 | } |
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316 | |
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317 | /* |
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318 | * _RTEMS_tasks_MP_Send_object_was_deleted |
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319 | * |
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320 | * This routine is not neededby the Tasks since a task |
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321 | * cannot be globally deleted. |
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322 | * |
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323 | */ |
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324 | |
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325 | /* |
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326 | * _RTEMS_tasks_MP_Send_extract_proxy |
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327 | * |
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328 | * This routine is not neededby the Tasks since a task |
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329 | * cannot be globally deleted. |
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330 | * |
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331 | */ |
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332 | |
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333 | /* |
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334 | * _RTEMS_tasks_MP_Get_packet |
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335 | * |
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336 | */ |
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337 | |
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338 | RTEMS_tasks_MP_Packet *_RTEMS_tasks_MP_Get_packet ( void ) |
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339 | { |
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340 | return (RTEMS_tasks_MP_Packet *) _MPCI_Get_packet(); |
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341 | } |
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342 | |
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343 | /* end of file */ |
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