1 | /* time.c |
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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 | #include <time.h> |
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7 | |
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8 | #include <rtems/system.h> |
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9 | #include <rtems/score/tod.h> |
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10 | |
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11 | /* |
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12 | * Seconds from January 1, 1970 to January 1, 1988. Used to account for |
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13 | * differences between POSIX API and RTEMS core. |
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14 | */ |
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15 | |
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16 | #define POSIX_TIME_SECONDS_1970_THROUGH_1988 \ |
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17 | (((1987 - 1970 + 1) * TOD_SECONDS_PER_NON_LEAP_YEAR) + \ |
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18 | (4 * TOD_SECONDS_PER_DAY)) |
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19 | |
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20 | /* |
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21 | * 4.5.1 Get System Time, P1003.1b-1993, p. 91 |
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22 | */ |
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23 | |
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24 | time_t time( |
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25 | time_t *tloc |
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26 | ) |
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27 | { |
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28 | time_t seconds_since_epoch; |
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29 | |
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30 | if ( !_TOD_Is_set() ) { |
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31 | /* XXX set errno */ |
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32 | return -1; |
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33 | } |
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34 | |
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35 | /* |
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36 | * Internally the RTEMS epoch is 1988. This must be taken into account. |
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37 | */ |
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38 | |
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39 | seconds_since_epoch = _TOD_Seconds_since_epoch; |
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40 | |
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41 | seconds_since_epoch += POSIX_TIME_SECONDS_1970_THROUGH_1988; |
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42 | |
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43 | if ( tloc ) |
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44 | *tloc = seconds_since_epoch; |
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45 | |
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46 | return seconds_since_epoch; |
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47 | } |
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48 | |
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49 | #ifdef NOT_IMPLEMENTED_YET |
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50 | /* |
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51 | * 14.2.1 Clocks, P1003.1b-1993, p. 263 |
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52 | */ |
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53 | |
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54 | int clock_settime( |
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55 | clockid_t clock_id, |
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56 | const struct timespec *tp |
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57 | ) |
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58 | { |
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59 | return POSIX_NOT_IMPLEMENTED(); |
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60 | } |
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61 | |
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62 | /* |
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63 | * 14.2.1 Clocks, P1003.1b-1993, p. 263 |
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64 | */ |
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65 | |
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66 | int clock_gettime( |
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67 | clockid_t clock_id, |
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68 | struct timespec *tp |
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69 | ) |
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70 | { |
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71 | return POSIX_NOT_IMPLEMENTED(); |
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72 | } |
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73 | |
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74 | /* |
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75 | * 14.2.1 Clocks, P1003.1b-1993, p. 263 |
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76 | */ |
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77 | |
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78 | int clock_getres( |
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79 | clockid_t clock_id, |
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80 | struct timespec *res |
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81 | ) |
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82 | { |
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83 | return POSIX_NOT_IMPLEMENTED(); |
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84 | } |
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85 | |
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86 | /* |
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87 | * 14.2.2 Create a Per-Process Timer, P1003.1b-1993, p. 264 |
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88 | */ |
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89 | |
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90 | int timer_create( |
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91 | clockid_t clock_id, |
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92 | struct sigevent *evp, |
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93 | timer_t *timerid |
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94 | ) |
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95 | { |
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96 | return POSIX_NOT_IMPLEMENTED(); |
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97 | } |
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98 | |
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99 | /* |
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100 | * 14.2.3 Delete a Per_process Timer, P1003.1b-1993, p. 266 |
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101 | */ |
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102 | |
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103 | int timer_delete( |
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104 | timer_t timerid |
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105 | ) |
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106 | { |
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107 | return POSIX_NOT_IMPLEMENTED(); |
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108 | } |
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109 | |
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110 | /* |
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111 | * 14.2.4 Per-Process Timers, P1003.1b-1993, p. 267 |
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112 | */ |
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113 | |
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114 | int timer_settime( |
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115 | timer_t timerid, |
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116 | int flags, |
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117 | const struct itimerspec *value, |
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118 | struct itimerspec *ovalue |
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119 | ) |
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120 | { |
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121 | return POSIX_NOT_IMPLEMENTED(); |
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122 | } |
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123 | |
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124 | /* |
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125 | * 14.2.4 Per-Process Timers, P1003.1b-1993, p. 267 |
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126 | */ |
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127 | |
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128 | int timer_gettime( |
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129 | timer_t timerid, |
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130 | struct itimerspec *value |
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131 | ) |
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132 | { |
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133 | return POSIX_NOT_IMPLEMENTED(); |
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134 | } |
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135 | |
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136 | /* |
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137 | * 14.2.4 Per-Process Timers, P1003.1b-1993, p. 267 |
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138 | */ |
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139 | |
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140 | int timer_getoverrun( |
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141 | timer_t timerid |
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142 | ) |
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143 | { |
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144 | return POSIX_NOT_IMPLEMENTED(); |
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145 | } |
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146 | |
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147 | /* |
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148 | * 14.2.5 High Resolution Sleep, P1003.1b-1993, p. 269 |
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149 | */ |
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150 | |
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151 | int nanosleep( |
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152 | const struct timespec *rqtp, |
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153 | struct timespec *rmtp |
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154 | ) |
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155 | { |
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156 | return POSIX_NOT_IMPLEMENTED(); |
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157 | } |
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158 | |
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159 | /* |
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160 | * 20.1.3 Accessing a Process CPU-time CLock, P1003.4b/D8, p. 55 |
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161 | */ |
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162 | |
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163 | int clock_getcpuclockid( |
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164 | pid_t pid, |
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165 | clockid_t *clock_id |
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166 | ) |
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167 | { |
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168 | return POSIX_NOT_IMPLEMENTED(); |
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169 | } |
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170 | |
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171 | /* |
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172 | * 20.1.5 CPU-time Clock Attribute Access, P1003.4b/D8, p. 58 |
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173 | */ |
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174 | |
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175 | int clock_setenable_attr( |
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176 | clockid_t clock_id, |
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177 | int attr |
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178 | ) |
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179 | { |
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180 | return POSIX_NOT_IMPLEMENTED(); |
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181 | } |
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182 | |
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183 | /* |
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184 | * 20.1.5 CPU-time Clock Attribute Access, P1003.4b/D8, p. 58 |
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185 | */ |
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186 | |
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187 | int clock_getenable_attr( |
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188 | clockid_t clock_id, |
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189 | int *attr |
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190 | ) |
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191 | { |
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192 | return POSIX_NOT_IMPLEMENTED(); |
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193 | } |
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194 | |
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195 | #endif |
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