1 | /* sysstates.h |
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2 | * |
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3 | * This include file contains information regarding the system state. |
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4 | * |
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5 | * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. |
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6 | * On-Line Applications Research Corporation (OAR). |
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7 | * All rights assigned to U.S. Government, 1994. |
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8 | * |
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9 | * This material may be reproduced by or for the U.S. Government pursuant |
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10 | * to the copyright license under the clause at DFARS 252.227-7013. This |
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11 | * notice must appear in all copies of this file and its derivatives. |
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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 __RTEMS_SYSTEM_STATE_h |
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17 | #define __RTEMS_SYSTEM_STATE_h |
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18 | |
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19 | #ifdef __cplusplus |
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20 | extern "C" { |
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21 | #endif |
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22 | |
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23 | /* types */ |
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24 | |
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25 | /* enumerated constants */ |
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26 | |
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27 | /* |
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28 | * The following type defines the possible system states. |
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29 | */ |
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30 | |
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31 | typedef enum { |
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32 | SYSTEM_STATE_BEFORE_INITIALIZATION, /* start -> end of 1st init part */ |
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33 | SYSTEM_STATE_BEFORE_MULTITASKING, /* end of 1st -> beginning of 2nd */ |
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34 | SYSTEM_STATE_BEGIN_MULTITASKING, /* beginning of 2nd -> end of SYSI */ |
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35 | SYSTEM_STATE_UP, /* normal operation */ |
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36 | SYSTEM_STATE_FAILED /* fatal error occurred */ |
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37 | } System_state_Codes; |
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38 | |
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39 | #define SYSTEM_STATE_CODES_FIRST SYSTEM_STATE_BEFORE_INITIALIZATION |
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40 | #define SYSTEM_STATE_CODES_LAST SYSTEM_STATE_FAILED |
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41 | |
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42 | /* |
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43 | * The following variable indicates whether or not this is |
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44 | * an multiprocessing system. |
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45 | */ |
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46 | |
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47 | EXTERN boolean _System_state_Is_multiprocessing; |
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48 | |
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49 | /* |
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50 | * The following variable contains the current system state. |
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51 | */ |
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52 | |
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53 | EXTERN System_state_Codes _System_state_Current; |
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54 | |
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55 | /* |
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56 | * _System_state_Handler_initialization |
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57 | * |
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58 | * DESCRIPTION: |
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59 | * |
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60 | * This routine initializes the system state handler. |
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61 | */ |
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62 | |
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63 | STATIC INLINE void _System_state_Handler_initialization ( |
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64 | boolean is_multiprocessing |
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65 | ); |
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66 | |
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67 | /* |
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68 | * _System_state_Set |
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69 | * |
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70 | * DESCRIPTION: |
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71 | * |
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72 | * This routine sets the current system state to that specified by |
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73 | * the called. |
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74 | */ |
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75 | |
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76 | STATIC INLINE void _System_state_Set ( |
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77 | System_state_Codes state |
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78 | ); |
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79 | |
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80 | /* |
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81 | * _System_state_Get |
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82 | * |
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83 | * DESCRIPTION: |
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84 | * |
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85 | * This function returns the current system state. |
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86 | */ |
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87 | |
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88 | STATIC INLINE System_state_Codes _System_state_Get ( void ); |
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89 | |
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90 | /* |
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91 | * _System_state_Is_before_initialization |
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92 | * |
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93 | * DESCRIPTION: |
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94 | * |
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95 | * This function returns TRUE if the state is equal to the |
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96 | * "before initialization" state, and FALSE otherwise. |
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97 | */ |
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98 | |
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99 | STATIC INLINE boolean _System_state_Is_before_initialization ( |
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100 | System_state_Codes state |
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101 | ); |
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102 | |
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103 | /* |
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104 | * _System_state_Is_before_multitasking |
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105 | * |
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106 | * DESCRIPTION: |
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107 | * |
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108 | * This function returns TRUE if the state is equal to the |
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109 | * "before multitasking" state, and FALSE otherwise. |
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110 | */ |
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111 | |
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112 | STATIC INLINE boolean _System_state_Is_before_multitasking ( |
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113 | System_state_Codes state |
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114 | ); |
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115 | |
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116 | /* |
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117 | * _System_state_Is_begin_multitasking |
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118 | * |
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119 | * DESCRIPTION: |
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120 | * |
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121 | * This function returns TRUE if the state is equal to the |
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122 | * "begin multitasking" state, and FALSE otherwise. |
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123 | */ |
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124 | |
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125 | STATIC INLINE boolean _System_state_Is_begin_multitasking ( |
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126 | System_state_Codes state |
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127 | ); |
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128 | |
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129 | /* |
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130 | * _System_state_Is_up |
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131 | * |
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132 | * DESCRIPTION: |
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133 | * |
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134 | * This function returns TRUE if the state is equal to the |
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135 | * "up" state, and FALSE otherwise. |
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136 | */ |
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137 | |
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138 | STATIC INLINE boolean _System_state_Is_up ( |
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139 | System_state_Codes state |
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140 | ); |
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141 | |
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142 | /* |
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143 | * _System_state_Is_failed |
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144 | * |
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145 | * DESCRIPTION: |
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146 | * |
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147 | * This function returns TRUE if the state is equal to the |
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148 | * "failed" state, and FALSE otherwise. |
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149 | */ |
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150 | |
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151 | STATIC INLINE boolean _System_state_Is_failed ( |
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152 | System_state_Codes state |
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153 | ); |
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154 | |
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155 | #include <rtems/score/sysstate.inl> |
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156 | |
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157 | #ifdef __cplusplus |
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158 | } |
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159 | #endif |
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160 | |
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161 | #endif |
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162 | /* end of include file */ |
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