1 | /** |
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2 | * @file |
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3 | * |
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4 | * @ingroup ScoreSysState |
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5 | * |
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6 | * @brief System State Handler API |
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7 | */ |
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8 | |
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9 | /* |
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10 | * COPYRIGHT (c) 1989-2011. |
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11 | * On-Line Applications Research Corporation (OAR). |
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12 | * |
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13 | * The license and distribution terms for this file may be |
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14 | * found in the file LICENSE in this distribution or at |
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15 | * http://www.rtems.org/license/LICENSE. |
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16 | */ |
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17 | |
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18 | #ifndef _RTEMS_SCORE_SYSSTATE_H |
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19 | #define _RTEMS_SCORE_SYSSTATE_H |
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20 | |
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21 | #include <rtems/score/basedefs.h> |
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22 | |
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23 | #ifdef __cplusplus |
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24 | extern "C" { |
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25 | #endif |
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26 | |
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27 | /** |
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28 | * @defgroup ScoreSysState System State Handler |
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29 | * |
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30 | * @ingroup Score |
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31 | * |
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32 | * @brief Management of the internal system state of RTEMS. |
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33 | */ |
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34 | /**@{**/ |
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35 | |
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36 | /** |
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37 | * @brief System states. |
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38 | */ |
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39 | typedef enum { |
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40 | /** |
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41 | * @brief The system is before the end of the first phase of initialization. |
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42 | */ |
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43 | SYSTEM_STATE_BEFORE_INITIALIZATION, |
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44 | |
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45 | /** |
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46 | * @brief The system is between end of the first phase of initialization but |
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47 | * before multitasking is started. |
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48 | */ |
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49 | SYSTEM_STATE_BEFORE_MULTITASKING, |
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50 | |
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51 | /** |
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52 | * @brief The system is up and operating normally. |
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53 | */ |
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54 | SYSTEM_STATE_UP, |
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55 | |
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56 | /** |
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57 | * @brief The system reached its terminal state. |
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58 | */ |
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59 | SYSTEM_STATE_TERMINATED |
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60 | } System_state_Codes; |
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61 | |
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62 | #define SYSTEM_STATE_CODES_FIRST SYSTEM_STATE_BEFORE_INITIALIZATION |
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63 | |
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64 | #define SYSTEM_STATE_CODES_LAST SYSTEM_STATE_TERMINATED |
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65 | |
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66 | #if defined(RTEMS_MULTIPROCESSING) |
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67 | SCORE_EXTERN bool _System_state_Is_multiprocessing; |
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68 | #endif |
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69 | |
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70 | extern System_state_Codes _System_state_Current; |
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71 | |
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72 | RTEMS_INLINE_ROUTINE void _System_state_Set ( |
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73 | System_state_Codes state |
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74 | ) |
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75 | { |
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76 | _System_state_Current = state; |
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77 | } |
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78 | |
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79 | RTEMS_INLINE_ROUTINE void _System_state_Handler_initialization ( |
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80 | #if defined(RTEMS_MULTIPROCESSING) |
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81 | bool is_multiprocessing |
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82 | #else |
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83 | bool is_multiprocessing RTEMS_UNUSED |
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84 | #endif |
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85 | ) |
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86 | { |
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87 | _System_state_Set( SYSTEM_STATE_BEFORE_INITIALIZATION ); |
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88 | #if defined(RTEMS_MULTIPROCESSING) |
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89 | _System_state_Is_multiprocessing = is_multiprocessing; |
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90 | #endif |
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91 | } |
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92 | |
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93 | RTEMS_INLINE_ROUTINE System_state_Codes _System_state_Get ( void ) |
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94 | { |
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95 | return _System_state_Current; |
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96 | } |
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97 | |
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98 | RTEMS_INLINE_ROUTINE bool _System_state_Is_before_initialization ( |
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99 | System_state_Codes state |
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100 | ) |
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101 | { |
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102 | return (state == SYSTEM_STATE_BEFORE_INITIALIZATION); |
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103 | } |
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104 | |
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105 | RTEMS_INLINE_ROUTINE bool _System_state_Is_before_multitasking ( |
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106 | System_state_Codes state |
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107 | ) |
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108 | { |
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109 | return (state == SYSTEM_STATE_BEFORE_MULTITASKING); |
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110 | } |
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111 | |
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112 | RTEMS_INLINE_ROUTINE bool _System_state_Is_up ( |
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113 | System_state_Codes state |
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114 | ) |
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115 | { |
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116 | return (state == SYSTEM_STATE_UP); |
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117 | } |
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118 | |
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119 | RTEMS_INLINE_ROUTINE bool _System_state_Is_terminated ( |
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120 | System_state_Codes state |
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121 | ) |
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122 | { |
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123 | return (state == SYSTEM_STATE_TERMINATED); |
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124 | } |
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125 | |
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126 | /** @} */ |
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127 | |
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128 | #ifdef __cplusplus |
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129 | } |
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130 | #endif |
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131 | |
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132 | #endif |
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133 | /* end of include file */ |
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