1 | /* |
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2 | ------------------------------------------------------------------------ |
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3 | $Id$ |
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4 | ------------------------------------------------------------------------ |
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5 | |
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6 | COPYRIGHT (c) 1997 |
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7 | Objective Design Systems Ltd Pty (ODS) |
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8 | All rights reserved (R) Objective Design Systems Ltd Pty |
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9 | |
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10 | The license and distribution terms for this file may be found in the |
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11 | 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 | ------------------------------------------------------------------------ |
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15 | |
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16 | rtemsTaskMode class. |
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17 | |
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18 | This class allows the user to query or change the mode of an RTEMS |
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19 | task. |
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20 | |
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21 | This object only operates on the currently executing task. |
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22 | |
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23 | The standard flags defined in RTEMS are used. |
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24 | |
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25 | Methods are provided to operate on a group of modes which are |
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26 | required to be changed in a single operation. The mode and mask is |
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27 | specified by ORing the required flags. |
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28 | |
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29 | Methods are provided for accessing and controlling a specific |
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30 | mode. The returned value will only contain the requested mode's flags, |
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31 | and only the that mode will be changed when setting a mode. |
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32 | |
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33 | ------------------------------------------------------------------------ */ |
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34 | |
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35 | #if !defined(_rtemsTaskMode_h_) |
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36 | #define _rtemsTaskMode_h_ |
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37 | |
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38 | #include <rtems++/rtemsStatusCode.h> |
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39 | |
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40 | /* ---- |
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41 | rtemsTaskMode |
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42 | */ |
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43 | |
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44 | class rtemsTaskMode |
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45 | : public rtemsStatusCode |
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46 | { |
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47 | public: |
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48 | |
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49 | rtemsTaskMode() {}; |
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50 | |
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51 | // group mode control, OR the values together |
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52 | inline const rtems_status_code get_mode(rtems_mode& mode); |
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53 | inline const rtems_status_code set_mode(const rtems_mode mode, |
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54 | const rtems_mode mask); |
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55 | inline const rtems_status_code set_mode(const rtems_mode mode, |
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56 | const rtems_mode mask, |
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57 | rtems_mode& old_mode); |
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58 | |
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59 | // preemption control |
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60 | inline const rtems_status_code get_preemption_state(rtems_mode& preemption); |
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61 | inline const rtems_status_code set_preemption_state(const rtems_mode preemption); |
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62 | inline const rtems_status_code set_preemption_state(const rtems_mode preemption, |
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63 | rtems_mode& old_preemption); |
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64 | inline const boolean preemption_set(const rtems_mode preemption); |
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65 | |
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66 | // timeslice control |
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67 | inline const rtems_status_code get_timeslice_state(rtems_mode& timeslice); |
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68 | inline const rtems_status_code set_timeslice_state(const rtems_mode timeslice); |
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69 | inline const rtems_status_code set_timeslice_state(const rtems_mode timeslice, |
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70 | rtems_mode& old_timeslice); |
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71 | inline const boolean timeslice_set(const rtems_mode preemption); |
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72 | |
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73 | // async-sub-routine control |
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74 | inline const rtems_status_code get_asr_state(rtems_mode& asr); |
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75 | inline const rtems_status_code set_asr_state(const rtems_mode asr); |
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76 | inline const rtems_status_code set_asr_state(const rtems_mode asr, |
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77 | rtems_mode& old_asr); |
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78 | inline const boolean asr_set(const rtems_mode preemption); |
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79 | |
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80 | // interrupt mask control |
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81 | inline const rtems_status_code get_interrupt_level(rtems_interrupt_level& level); |
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82 | inline const rtems_status_code set_interrupt_level(const rtems_interrupt_level level); |
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83 | inline const rtems_status_code set_interrupt_level(const rtems_interrupt_level level, |
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84 | rtems_interrupt_level& old_level); |
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85 | }; |
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86 | |
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87 | const rtems_status_code rtemsTaskMode::get_mode(rtems_mode& mode) |
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88 | { |
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89 | return set_status_code(rtems_task_mode(0, RTEMS_CURRENT_MODE, &mode)); |
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90 | } |
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91 | |
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92 | const rtems_status_code rtemsTaskMode::set_mode(const rtems_mode mode, |
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93 | const rtems_mode mask) |
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94 | { |
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95 | rtems_mode old_mode; |
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96 | return set_status_code(rtems_task_mode(mode, mask, &old_mode)); |
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97 | } |
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98 | |
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99 | const rtems_status_code rtemsTaskMode::set_mode(const rtems_mode mode, |
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100 | const rtems_mode mask, |
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101 | rtems_mode& old_mode) |
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102 | { |
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103 | return set_status_code(rtems_task_mode(mode, mask, &old_mode)); |
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104 | } |
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105 | |
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106 | const rtems_status_code rtemsTaskMode::get_preemption_state(rtems_mode& preemption) |
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107 | { |
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108 | set_status_code(rtems_task_mode(0, RTEMS_CURRENT_MODE, &preemption)); |
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109 | preemption &= RTEMS_PREEMPT_MASK; |
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110 | return last_status_code(); |
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111 | } |
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112 | |
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113 | const rtems_status_code rtemsTaskMode::set_preemption_state(const rtems_mode preemption) |
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114 | { |
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115 | rtems_mode old_mode; |
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116 | return set_status_code(rtems_task_mode(preemption, RTEMS_PREEMPT_MASK, &old_mode)); |
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117 | } |
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118 | |
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119 | const rtems_status_code rtemsTaskMode::set_preemption_state(const rtems_mode preemption, |
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120 | rtems_mode& old_preemption) |
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121 | { |
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122 | set_status_code(rtems_task_mode(preemption, RTEMS_PREEMPT_MASK, &old_preemption)); |
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123 | old_preemption &= RTEMS_PREEMPT_MASK; |
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124 | return last_status_code(); |
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125 | } |
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126 | |
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127 | const boolean rtemsTaskMode::preemption_set(const rtems_mode preemption) |
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128 | { |
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129 | return (preemption & RTEMS_PREEMPT_MASK) ? false : true; |
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130 | } |
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131 | |
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132 | const rtems_status_code rtemsTaskMode::get_timeslice_state(rtems_mode& timeslice) |
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133 | { |
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134 | set_status_code(rtems_task_mode(0, RTEMS_CURRENT_MODE, ×lice)); |
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135 | timeslice &= RTEMS_TIMESLICE_MASK; |
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136 | return last_status_code(); |
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137 | } |
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138 | |
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139 | const rtems_status_code rtemsTaskMode::set_timeslice_state(const rtems_mode timeslice) |
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140 | { |
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141 | rtems_mode old_mode; |
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142 | return set_status_code(rtems_task_mode(timeslice, RTEMS_TIMESLICE_MASK, &old_mode)); |
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143 | } |
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144 | |
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145 | const rtems_status_code rtemsTaskMode::set_timeslice_state(const rtems_mode timeslice, |
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146 | rtems_mode& old_timeslice) |
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147 | { |
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148 | set_status_code(rtems_task_mode(timeslice, RTEMS_TIMESLICE_MASK, &old_timeslice)); |
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149 | old_timeslice &= RTEMS_TIMESLICE_MASK; |
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150 | return last_status_code(); |
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151 | } |
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152 | |
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153 | const boolean rtemsTaskMode::timeslice_set(const rtems_mode timeslice) |
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154 | { |
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155 | return (timeslice & RTEMS_TIMESLICE_MASK) ? true : false; |
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156 | } |
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157 | |
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158 | const rtems_status_code rtemsTaskMode::get_asr_state(rtems_mode& asr) |
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159 | { |
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160 | set_status_code(rtems_task_mode(0, RTEMS_CURRENT_MODE, &asr)); |
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161 | asr &= RTEMS_ASR_MASK; |
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162 | return last_status_code(); |
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163 | } |
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164 | |
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165 | const rtems_status_code rtemsTaskMode::set_asr_state(const rtems_mode asr) |
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166 | { |
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167 | rtems_mode old_mode; |
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168 | return set_status_code(rtems_task_mode(asr, RTEMS_ASR_MASK, &old_mode)); |
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169 | } |
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170 | |
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171 | const rtems_status_code rtemsTaskMode::set_asr_state(const rtems_mode asr, |
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172 | rtems_mode& old_asr) |
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173 | { |
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174 | set_status_code(rtems_task_mode(asr, RTEMS_ASR_MASK, &old_asr)); |
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175 | old_asr &= RTEMS_ASR_MASK; |
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176 | return last_status_code(); |
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177 | } |
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178 | |
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179 | const boolean rtemsTaskMode::asr_set(const rtems_mode asr) |
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180 | { |
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181 | return (asr & RTEMS_ASR_MASK) ? true : false; |
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182 | } |
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183 | |
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184 | const rtems_status_code rtemsTaskMode::get_interrupt_level(rtems_interrupt_level& level) |
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185 | { |
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186 | rtems_mode mode; |
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187 | set_status_code(rtems_task_mode(0, RTEMS_CURRENT_MODE, &mode)); |
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188 | level = mode & RTEMS_INTERRUPT_MASK; |
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189 | return last_status_code(); |
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190 | } |
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191 | |
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192 | const rtems_status_code rtemsTaskMode::set_interrupt_level(const rtems_interrupt_level level) |
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193 | { |
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194 | rtems_mode old_mode; |
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195 | return set_status_code(rtems_task_mode(level, RTEMS_INTERRUPT_MASK, &old_mode)); |
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196 | } |
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197 | |
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198 | const rtems_status_code rtemsTaskMode::set_interrupt_level(rtems_interrupt_level level, |
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199 | rtems_interrupt_level& old_level) |
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200 | { |
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201 | set_status_code(rtems_task_mode(level, RTEMS_INTERRUPT_MASK, &old_level)); |
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202 | old_level = old_level & RTEMS_INTERRUPT_MASK; |
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203 | return last_status_code(); |
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204 | } |
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205 | |
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206 | #endif // _rtemsTaskMode_h_ |
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207 | |
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208 | |
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209 | |
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210 | |
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