1 | /**************************************** |
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2 | * Computer Algebra System SINGULAR * |
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3 | ****************************************/ |
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4 | /* $Id: timer.cc,v 1.6 2008-03-19 17:44:13 Singular Exp $ */ |
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5 | |
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6 | /* |
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7 | * ABSTRACT - get the computing time |
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8 | */ |
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9 | |
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10 | #include "mod2.h" |
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11 | |
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12 | int timerv = 0; |
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13 | static double timer_resolution = TIMER_RESOLUTION; |
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14 | |
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15 | static double mintime = 0.5; |
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16 | |
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17 | void SetTimerResolution(int res) |
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18 | { |
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19 | timer_resolution = (double) res; |
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20 | } |
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21 | |
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22 | void SetMinDisplayTime(double mtime) |
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23 | { |
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24 | mintime = mtime; |
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25 | } |
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26 | |
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27 | #include <stdio.h> |
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28 | #include <math.h> |
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29 | #include <unistd.h> |
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30 | #include <float.h> |
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31 | #include <mylimits.h> |
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32 | #include <sys/types.h> |
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33 | |
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34 | #ifdef TIME_WITH_SYS_TIME |
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35 | # include <time.h> |
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36 | # ifdef HAVE_SYS_TIME_H |
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37 | # include <sys/time.h> |
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38 | # endif |
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39 | #else |
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40 | # ifdef HAVE_SYS_TIME_H |
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41 | # include <sys/time.h> |
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42 | # else |
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43 | # include <time.h> |
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44 | # endif |
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45 | #endif |
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46 | |
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47 | #ifdef HAVE_SYS_TIMES_H |
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48 | #include <sys/times.h> |
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49 | #endif |
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50 | |
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51 | |
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52 | // need to be adjusted on your machine: the number of ticks per second: HZ |
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53 | #ifndef HZ |
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54 | #include <sys/param.h> |
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55 | #endif |
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56 | |
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57 | #if !defined(HZ) && defined(CLOCKS_PER_SEC) |
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58 | #define HZ CLOCKS_PER_SEC |
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59 | #endif |
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60 | |
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61 | #if !defined(HZ) && defined(CLK_TCK) |
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62 | #define HZ CLK_TCK |
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63 | #endif |
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64 | |
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65 | #if !defined(HZ) && defined(HAVE_SYSCONF) |
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66 | #define HZ sysconf(_SC_CLK_TCK) |
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67 | #endif |
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68 | |
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69 | #ifndef HZ |
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70 | // last resort |
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71 | #ifdef sun |
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72 | #define HZ 60.0 |
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73 | #else |
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74 | #define HZ 100.0 |
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75 | #endif |
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76 | #endif |
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77 | |
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78 | #include "timer.h" |
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79 | #include "febase.h" |
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80 | /*3 |
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81 | * the start time of the timer |
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82 | */ |
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83 | static clock_t startl; |
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84 | static clock_t siStartTime; |
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85 | |
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86 | /*3 |
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87 | * temp structure to get the time |
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88 | */ |
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89 | static struct tms t_rec; |
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90 | |
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91 | /*0 implementation*/ |
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92 | |
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93 | int initTimer() |
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94 | { |
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95 | times(&t_rec); |
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96 | siStartTime = t_rec.tms_utime+t_rec.tms_stime; |
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97 | return (int)time(NULL); |
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98 | } |
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99 | |
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100 | void startTimer() |
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101 | { |
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102 | times(&t_rec); |
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103 | startl = t_rec.tms_utime+t_rec.tms_stime; |
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104 | } |
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105 | |
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106 | /*2 |
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107 | * returns the time since a fixed point in seconds |
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108 | */ |
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109 | int getTimer() |
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110 | { |
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111 | clock_t curr; |
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112 | |
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113 | times(&t_rec); |
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114 | curr = t_rec.tms_utime+t_rec.tms_stime - siStartTime; |
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115 | |
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116 | double f = ((double)curr) * timer_resolution / (double)HZ; |
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117 | return (int)(f+0.5); |
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118 | } |
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119 | |
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120 | /*2 |
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121 | * stops timer, writes string s and the time since last call of startTimer |
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122 | * if this time is > mintime sec |
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123 | */ |
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124 | #ifdef EXTEND_TIMER_D |
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125 | extern int iiOp; |
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126 | #endif |
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127 | void writeTime(const char* v) |
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128 | { |
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129 | clock_t curr; |
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130 | |
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131 | times(&t_rec); |
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132 | curr = t_rec.tms_utime+t_rec.tms_stime - startl; |
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133 | |
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134 | double f = ((double)curr) / (double)HZ; |
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135 | if (f > mintime) |
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136 | { |
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137 | #ifdef EXTEND_TIMER_D |
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138 | Print("//%s %.2f sec (%d) >>%s<<\n" ,v ,f,iiOp,my_yylinebuf); |
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139 | #else |
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140 | Print("//%s %.2f sec\n" ,v ,f); |
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141 | #endif |
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142 | } |
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143 | } |
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144 | |
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145 | #ifdef HAVE_RTIMER |
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146 | /*0 Real timer implementation*/ |
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147 | int rtimerv = 0; |
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148 | static struct timeval startRl; |
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149 | static struct timeval siStartRTime; |
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150 | static struct timezone tzp; |
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151 | void initRTimer() |
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152 | { |
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153 | gettimeofday(&startRl, &tzp); |
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154 | gettimeofday(&siStartRTime, &tzp); |
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155 | } |
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156 | |
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157 | void startRTimer() |
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158 | { |
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159 | gettimeofday(&siStartRTime, &tzp); |
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160 | } |
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161 | |
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162 | /*2 |
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163 | * returns the time since a fixed point in resolutions |
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164 | */ |
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165 | int getRTimer() |
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166 | { |
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167 | struct timeval now; |
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168 | |
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169 | gettimeofday(&now, &tzp); |
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170 | |
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171 | if (startRl.tv_usec > now.tv_usec) |
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172 | { |
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173 | now.tv_usec += 1000000; |
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174 | now.tv_sec --; |
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175 | } |
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176 | |
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177 | double f =((double) (now.tv_sec - startRl.tv_sec))*timer_resolution + |
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178 | ((double) (now.tv_usec - startRl.tv_usec))*timer_resolution / |
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179 | (double) 1000000; |
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180 | |
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181 | return (int)(f+0.5); |
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182 | } |
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183 | |
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184 | /*2 |
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185 | * stops timer, writes string s and the time since last call of startTimer |
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186 | * if this time is > mintime |
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187 | */ |
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188 | void writeRTime(const char* v) |
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189 | { |
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190 | struct timeval now; |
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191 | |
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192 | gettimeofday(&now, &tzp); |
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193 | |
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194 | if (siStartRTime.tv_usec > now.tv_usec) |
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195 | { |
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196 | now.tv_usec += 1000000; |
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197 | now.tv_sec --; |
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198 | } |
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199 | |
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200 | double f =((double) (now.tv_sec - siStartRTime.tv_sec)) + |
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201 | ((double) (now.tv_usec - siStartRTime.tv_usec)) / |
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202 | (double) 1000000; |
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203 | |
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204 | if (f > mintime) |
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205 | Print("//%s %.2f sec \n" ,v ,f); |
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206 | } |
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207 | #endif |
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