1 | #include "globals.h"
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2 | #include "oscam-time.h"
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3 |
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4 | static enum clock_type clock_type = CLOCK_TYPE_UNKNOWN;
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5 |
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6 | #if defined(CLOCKFIX)
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7 | struct timeval lasttime; // holds previous time to detect systemtime adjustments due to eg transponder change on dvb receivers
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8 | #endif
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9 |
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10 | int64_t comp_timeb(struct timeb *tpa, struct timeb *tpb)
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11 | {
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12 | return (int64_t)(((int64_t)(tpa->time - tpb->time) * 1000ull) + ((int64_t) tpa->millitm - (int64_t) tpb->millitm));
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13 | }
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14 |
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15 | int64_t comp_timebus(struct timeb *tpa, struct timeb *tpb)
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16 | {
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17 | return (int64_t)(((int64_t)(tpa->time - tpb->time) * 1000000ull) + ((int64_t) tpa->millitm - (int64_t) tpb->millitm));
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18 | }
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19 |
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20 | /* Checks if year is a leap year. If so, 1 is returned, else 0. */
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21 | static int8_t is_leap(unsigned int y)
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22 | {
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23 | return (y % 4) == 0 && ((y % 100) != 0 || (y % 400) == 0);
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24 | }
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25 |
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26 | /* Drop-in replacement for timegm function as some plattforms strip the function from their libc.. */
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27 | time_t cs_timegm(struct tm *tm)
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28 | {
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29 | time_t result = 0;
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30 | int32_t i;
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31 |
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32 | if(tm->tm_mon > 12 || tm->tm_mon < 0 || tm->tm_mday > 31 || tm->tm_min > 60 || tm->tm_sec > 60 || tm->tm_hour > 24)
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33 | {
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34 | return 0;
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35 | }
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36 |
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37 | for(i = 70; i < tm->tm_year; ++i)
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38 | {
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39 | result += is_leap(i + 1900) ? 366 : 365;
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40 | }
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41 |
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42 | for(i = 0; i < tm->tm_mon; ++i)
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43 | {
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44 | if(i == 0 || i == 2 || i == 4 || i == 6 || i == 7 || i == 9 || i == 11) { result += 31; }
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45 | else if(i == 3 || i == 5 || i == 8 || i == 10) { result += 30; }
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46 | else if(is_leap(tm->tm_year + 1900)) { result += 29; }
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47 | else { result += 28; }
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48 | }
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49 |
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50 | result += tm->tm_mday - 1;
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51 | result *= 24;
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52 | result += tm->tm_hour;
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53 | result *= 60;
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54 | result += tm->tm_min;
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55 | result *= 60;
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56 | result += tm->tm_sec;
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57 | return result;
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58 | }
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59 |
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60 | /* Drop-in replacement for gmtime_r as some plattforms strip the function from their libc. */
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61 | struct tm *cs_gmtime_r(const time_t *timep, struct tm *r)
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62 | {
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63 | static const int16_t daysPerMonth[13] =
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64 | {
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65 | 0,
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66 | 31,
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67 | 31 + 28,
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68 | 31 + 28 + 31,
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69 | 31 + 28 + 31 + 30,
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70 | 31 + 28 + 31 + 30 + 31,
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71 | 31 + 28 + 31 + 30 + 31 + 30,
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72 | 31 + 28 + 31 + 30 + 31 + 30 + 31,
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73 | 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31,
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74 | 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30,
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75 | 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31,
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76 | 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30,
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77 | 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31
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78 | };
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79 |
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80 | time_t i;
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81 | time_t work = * timep % 86400;
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82 | r->tm_sec = work % 60;
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83 | work /= 60;
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84 | r->tm_min = work % 60;
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85 | r->tm_hour = work / 60;
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86 | work = * timep / 86400;
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87 | r->tm_wday = (4 + work) % 7;
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88 |
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89 | for(i = 1970; ; ++i)
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90 | {
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91 | time_t k = is_leap(i) ? 366 : 365;
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92 | if(work >= k)
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93 | {
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94 | work -= k;
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95 | }
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96 | else
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97 | {
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98 | break;
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99 | }
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100 | }
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101 |
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102 | r->tm_year = i - 1900;
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103 | r->tm_yday = work;
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104 | r->tm_mday = 1;
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105 |
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106 | if(is_leap(i) && work > 58)
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107 | {
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108 | if(work == 59)
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109 | {
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110 | r->tm_mday = 2; /* 29.2. */
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111 | }
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112 | work -= 1;
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113 | }
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114 |
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115 | for(i = 11; i && daysPerMonth[i] > work; --i) { ; }
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116 | r->tm_mon = i;
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117 | r->tm_mday += work - daysPerMonth[i];
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118 | return r;
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119 | }
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120 |
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121 | /* Drop-in replacement for ctime_r as some plattforms strip the function from their libc. */
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122 | char *cs_ctime_r(const time_t *timep, char *buf)
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123 | {
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124 | struct tm t;
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125 | localtime_r(timep, &t);
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126 | strftime(buf, 26, "%c\n", &t);
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127 | return buf;
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128 | }
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129 |
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130 | void cs_ftime(struct timeb *tp)
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131 | {
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132 | struct timeval tv;
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133 | gettimeofday(&tv, NULL);
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134 | #if defined(CLOCKFIX)
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135 | if (tv.tv_sec > lasttime.tv_sec || (tv.tv_sec == lasttime.tv_sec && tv.tv_usec >= lasttime.tv_usec)) // check for time issues!
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136 | {
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137 | lasttime = tv; // register this valid time
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138 | }
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139 | else
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140 | {
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141 | tv = lasttime;
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142 | settimeofday(&tv, NULL); // set time back to last known valid time
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143 | //fprintf(stderr, "*** WARNING: BAD TIME AFFECTING WHOLE OSCAM ECM HANDLING, SYSTEMTIME SET TO LAST KNOWN VALID TIME **** \n");
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144 | }
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145 | #endif
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146 | tp->time = tv.tv_sec;
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147 | tp->millitm = tv.tv_usec / 1000;
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148 | }
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149 |
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150 | void cs_ftimeus(struct timeb *tp)
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151 | {
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152 | struct timeval tv;
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153 | gettimeofday(&tv, NULL);
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154 | #if defined(CLOCKFIX)
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155 | if (tv.tv_sec > lasttime.tv_sec || (tv.tv_sec == lasttime.tv_sec && tv.tv_usec >= lasttime.tv_usec)) // check for time issues!
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156 | {
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157 | lasttime = tv; // register this valid time
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158 | }
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159 | else
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160 | {
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161 | tv = lasttime;
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162 | settimeofday(&tv, NULL); // set time back to last known valid time
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163 | //fprintf(stderr, "*** WARNING: BAD TIME AFFECTING WHOLE OSCAM ECM HANDLING, SYSTEMTIME SET TO LAST KNOWN VALID TIME **** \n");
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164 | }
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165 | #endif
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166 | tp->time = tv.tv_sec;
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167 | tp->millitm = tv.tv_usec;
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168 | }
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169 |
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170 | void cs_sleepms(uint32_t msec)
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171 | {
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172 | // does not interfere with signals like sleep and usleep do
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173 | struct timespec req_ts;
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174 | req_ts.tv_sec = msec / 1000;
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175 | req_ts.tv_nsec = (msec % 1000) * 1000000L;
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176 | int32_t olderrno = errno; // Some OS (especially MacOSX) seem to set errno to ETIMEDOUT when sleeping
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177 | while (1)
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178 | {
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179 | /* Sleep for the time specified in req_ts. If interrupted by a
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180 | signal, place the remaining time left to sleep back into req_ts. */
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181 | int rval = nanosleep (&req_ts, &req_ts);
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182 | if (rval == 0)
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183 | {
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184 | break; // Completed the entire sleep time; all done.
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185 | }
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186 | else if (errno == EINTR)
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187 | {
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188 | continue; // Interrupted by a signal. Try again.
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189 | }
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190 | else
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191 | {
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192 | break; // Some other error; bail out.
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193 | }
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194 | }
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195 | errno = olderrno;
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196 | }
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197 |
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198 | void cs_sleepus(uint32_t usec)
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199 | {
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200 | // does not interfere with signals like sleep and usleep do
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201 | struct timespec req_ts;
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202 | req_ts.tv_sec = usec / 1000000;
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203 | req_ts.tv_nsec = (usec % 1000000) * 1000L;
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204 | int32_t olderrno = errno; // Some OS (especially MacOSX) seem to set errno to ETIMEDOUT when sleeping
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205 |
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206 | while (1)
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207 | {
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208 | /* Sleep for the time specified in req_ts. If interrupted by a
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209 | signal, place the remaining time left to sleep back into req_ts. */
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210 | int rval = nanosleep (&req_ts, &req_ts);
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211 | if (rval == 0)
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212 | {
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213 | break; // Completed the entire sleep time; all done.
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214 | }
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215 | else if (errno == EINTR)
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216 | {
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217 | continue; // Interrupted by a signal. Try again.
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218 | }
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219 | else
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220 | {
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221 | break; // Some other error; bail out.
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222 | }
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223 | }
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224 | errno = olderrno;
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225 | }
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226 |
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227 | void add_ms_to_timespec(struct timespec *timeout, int32_t msec)
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228 | {
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229 | struct timespec now;
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230 | int64_t nanosecs, secs;
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231 | const int64_t NANOSEC_PER_MS = 1000000;
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232 | const int64_t NANOSEC_PER_SEC = 1000000000;
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233 | cs_gettime(&now);
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234 | nanosecs = (int64_t) (msec * NANOSEC_PER_MS + now.tv_nsec);
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235 | if (nanosecs >= NANOSEC_PER_SEC)
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236 | {
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237 | secs = now.tv_sec + (nanosecs / NANOSEC_PER_SEC);
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238 | nanosecs %= NANOSEC_PER_SEC;
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239 | }
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240 | else
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241 | {
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242 | secs = now.tv_sec;
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243 | }
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244 | timeout->tv_sec = (long)secs;
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245 | timeout->tv_nsec = (long)nanosecs;
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246 | }
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247 |
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248 | void add_ms_to_timeb(struct timeb *tb, int32_t ms)
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249 | {
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250 | if (ms >= 1000){
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251 | tb->time += ms / 1000;
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252 | tb->millitm += (ms % 1000);
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253 | }
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254 | else{
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255 | tb->millitm += ms;
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256 | }
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257 | if(tb->millitm >= 1000)
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258 | {
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259 | tb->millitm %= 1000;
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260 | tb->time++;
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261 | }
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262 | }
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263 |
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264 | int64_t add_ms_to_timeb_diff(struct timeb *tb, int32_t ms)
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265 | {
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266 | struct timeb tb_now;
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267 | add_ms_to_timeb(tb, ms);
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268 | cs_ftime(&tb_now);
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269 | return comp_timeb(tb, &tb_now);
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270 | }
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271 |
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272 | #if defined(__UCLIBC__)
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273 | #define __UCLIBC_VER (__UCLIBC_MAJOR__ * 10000 + __UCLIBC_MINOR__ * 100 + __UCLIBC_SUBLEVEL__)
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274 | #else
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275 | #define __UCLIBC_VER 999999
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276 | #endif
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277 |
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278 | #if defined(__GLIBC__)
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279 | #define __GLIBCVER (__GLIBC__ * 100 + __GLIBC_MINOR__)
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280 | #else
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281 | #define __GLIBCVER 9999
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282 | #endif
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283 |
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284 | // Assume we have HAVE_pthread_condattr_setclock if CLOCK_MONOTONIC is defined
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285 | #if defined(CLOCKFIX) && defined(CLOCK_MONOTONIC)
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286 | #define HAVE_pthread_condattr_setclock 1
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287 | #endif
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288 |
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289 | #if defined(HAVE_pthread_condattr_setclock)
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290 | // UCLIBC 0.9.31 does not have pthread_condattr_setclock
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291 | #if __UCLIBC_VER < 932
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292 | #undef HAVE_pthread_condattr_setclock
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293 | #endif
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294 | // glibc 2.3.6 in ppc old toolchain do not have pthread_condattr_setclock
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295 | #if __GLIBCVER < 204
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296 | #undef HAVE_pthread_condattr_setclock
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297 | #endif
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298 | // android's libc not have pthread_condattr_setclock
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299 | #if __BIONIC__
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300 | #undef HAVE_pthread_condattr_setclock
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301 | #endif
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302 | #endif
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303 |
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304 | void __cs_pthread_cond_init(const char *n, pthread_cond_t *cond)
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305 | {
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306 | pthread_condattr_t attr;
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307 | SAFE_CONDATTR_INIT_R(&attr, n); // init condattr with defaults
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308 | #if 0
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309 | #if defined(HAVE_pthread_condattr_setclock)
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310 | enum clock_type ctype = cs_getclocktype();
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311 | SAFE_CONDATTR_SETCLOCK_R(&attr, (ctype == CLOCK_TYPE_MONOTONIC) ? CLOCK_MONOTONIC : CLOCK_REALTIME, n);
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312 | #endif
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313 | #endif
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314 | SAFE_COND_INIT_R(cond, &attr, n); // init thread with right clock assigned
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315 | pthread_condattr_destroy(&attr);
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316 | }
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317 |
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318 | void __cs_pthread_cond_init_nolog(const char *n, pthread_cond_t *cond)
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319 | {
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320 | pthread_condattr_t attr;
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321 | SAFE_CONDATTR_INIT_NOLOG_R(&attr, n); // init condattr with defaults
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322 | #if 0
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323 | #if defined(HAVE_pthread_condattr_setclock)
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324 | enum clock_type ctype = cs_getclocktype();
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325 | SAFE_CONDATTR_SETCLOCK_NOLOG_R(&attr, (ctype == CLOCK_TYPE_MONOTONIC) ? CLOCK_MONOTONIC : CLOCK_REALTIME, n);
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326 | #endif
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327 | #endif
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328 | SAFE_COND_INIT_NOLOG_R(cond, &attr, n); // init thread with right clock assigned
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329 | pthread_condattr_destroy(&attr);
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330 | }
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331 |
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332 |
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333 | void sleepms_on_cond(const char *n, pthread_mutex_t *mutex, pthread_cond_t *cond, uint32_t msec)
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334 | {
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335 | struct timespec ts;
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336 | add_ms_to_timespec(&ts, msec);
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337 | SAFE_MUTEX_LOCK_R(mutex, n);
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338 | SAFE_COND_TIMEDWAIT_R(cond, mutex, &ts, n); // sleep on sleep_cond
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339 | SAFE_MUTEX_UNLOCK_R(mutex, n);
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340 | }
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341 |
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342 | void cs_pthread_cond_init(const char *n, pthread_mutex_t *mutex, pthread_cond_t *cond)
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343 | {
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344 | SAFE_MUTEX_INIT_R(mutex, NULL, n);
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345 | __cs_pthread_cond_init(n, cond);
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346 | }
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347 |
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348 | void cs_pthread_cond_init_nolog(const char *n, pthread_mutex_t *mutex, pthread_cond_t *cond)
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349 | {
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350 | SAFE_MUTEX_INIT_NOLOG_R(mutex, NULL, n);
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351 | __cs_pthread_cond_init(n, cond);
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352 | }
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353 |
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354 | enum clock_type cs_getclocktype(void) {
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355 | if (clock_type == CLOCK_TYPE_UNKNOWN) {
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356 | struct timespec ts;
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357 | cs_gettime(&ts); // init clock type
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358 | }
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359 | return clock_type;
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360 | }
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361 |
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362 | time_t cs_walltime(struct timeb *tp)
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363 | {
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364 | // we dont need to fetch time again and calculate if oscam is already using realtimeclock!
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365 | if (clock_type != CLOCK_TYPE_MONOTONIC)
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366 | return tp->time;
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367 |
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368 | struct timespec ts;
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369 | struct timeval tv;
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370 |
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371 | cs_gettime(&ts);
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372 | gettimeofday(&tv, NULL);
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373 | int64_t skew = tv.tv_sec - ts.tv_sec;
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374 | return(tp->time + skew);
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375 | }
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376 |
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377 | /* Return real time clock value calculated based on cs_gettime(). Use this instead of time() */
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378 | time_t cs_time(void)
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379 | {
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380 | struct timeb tb;
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381 | cs_ftime(&tb);
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382 | return cs_walltime(&tb);
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383 | }
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384 |
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385 | #ifdef __MACH__
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386 | #include <mach/clock.h>
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387 | #include <mach/mach.h>
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388 | #endif
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389 |
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390 | void cs_gettime(struct timespec *ts)
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391 | {
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392 | struct timeval tv;
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393 | gettimeofday(&tv, NULL);
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394 | #if defined(CLOCKFIX)
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395 | if (tv.tv_sec > lasttime.tv_sec || (tv.tv_sec == lasttime.tv_sec && tv.tv_usec >= lasttime.tv_usec)) // check for time issues!
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396 | {
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397 | lasttime = tv; // register this valid time
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398 | }
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399 | else
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400 | {
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401 | tv = lasttime;
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402 | settimeofday(&tv, NULL); // set time back to last known valid time
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403 | //fprintf(stderr, "*** WARNING: BAD TIME AFFECTING WHOLE OSCAM ECM HANDLING, SYSTEMTIME SET TO LAST KNOWN VALID TIME **** \n");
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404 | }
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405 | #endif
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406 | ts->tv_sec = tv.tv_sec;
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407 | ts->tv_nsec = tv.tv_usec * 1000;
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408 | clock_type = CLOCK_TYPE_REALTIME;
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409 | return;
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410 | #if 0
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411 | #if !defined(CLOCKFIX) || (!defined(CLOCK_MONOTONIC) && !defined(__MACH__))
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412 | struct timeval tv;
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413 | gettimeofday(&tv, NULL);
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414 | ts->tv_sec = tv.tv_sec;
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415 | ts->tv_nsec = tv.tv_usec * 1000;
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416 | clock_type = CLOCK_TYPE_REALTIME;
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417 | return;
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418 | #elif defined (__MACH__)
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419 | // OS X does not have clock_gettime, use clock_get_time
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420 | clock_serv_t cclock;
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421 | mach_timespec_t mts;
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422 | host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
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423 | clock_get_time(cclock, &mts);
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424 | mach_port_deallocate(mach_task_self(), cclock);
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425 | ts->tv_sec = mts.tv_sec;
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426 | ts->tv_nsec = mts.tv_nsec;
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427 | clock_type = CLOCK_TYPE_REALTIME;
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428 | #else
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429 | if (clock_type == CLOCK_TYPE_REALTIME) // monotonic returned error
|
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430 | {
|
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431 | clock_gettime(CLOCK_REALTIME, ts);
|
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432 | return;
|
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433 | }
|
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434 | int32_t ret = clock_gettime(CLOCK_MONOTONIC, ts);
|
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435 | clock_type = CLOCK_TYPE_MONOTONIC;
|
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436 | if ((ret < 0 && errno == EINVAL)) // Error fetching time from this source (Shouldn't happen on modern Linux)
|
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437 | {
|
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438 | clock_gettime(CLOCK_REALTIME, ts);
|
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439 | clock_type = CLOCK_TYPE_REALTIME;
|
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440 | }
|
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441 | #endif
|
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442 | #endif
|
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443 | }
|
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