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1 /* |
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2 |
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3 Copyright (C) 1999 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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21 |
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22 */ |
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23 |
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24 #if !defined (octave_time_h) |
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25 #define octave_time_h 1 |
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26 |
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27 #include <cmath> |
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28 |
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29 #include <string> |
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30 |
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31 #include "systime.h" |
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32 |
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33 class octave_base_tm; |
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34 |
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35 class |
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36 octave_time |
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37 { |
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38 public: |
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39 |
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40 octave_time (void) |
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41 : ot_unix_time (0), ot_usec (0) { stamp (); } |
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42 |
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43 octave_time (time_t t) |
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44 : ot_unix_time (t), ot_usec (0) { } |
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45 |
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46 octave_time (double d) |
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47 : ot_unix_time (static_cast<time_t> (d)), ot_usec (0) |
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48 { |
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49 double ip; |
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50 ot_usec = static_cast<int> (std::modf (d, &ip) * 1e6); |
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51 } |
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52 |
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53 octave_time (const octave_base_tm& tm); |
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54 |
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55 octave_time (const octave_time& ot) |
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56 : ot_unix_time (ot.ot_unix_time), ot_usec (ot.ot_usec) { } |
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57 |
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58 octave_time& operator = (const octave_time& ot) |
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59 { |
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60 if (this != &ot) |
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61 { |
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62 ot_unix_time = ot.ot_unix_time; |
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63 ot_usec = ot.ot_usec; |
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64 } |
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65 |
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66 return *this; |
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67 } |
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68 |
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69 ~octave_time (void) { } |
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70 |
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71 void stamp (void); |
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72 |
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73 operator double () const { return ot_unix_time + ot_usec / 1e6; } |
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74 |
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75 operator time_t () const { return ot_unix_time; } |
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76 |
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77 time_t unix_time (void) const { return ot_unix_time; } |
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78 |
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79 int usec (void) const { return ot_usec; } |
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80 |
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81 std::string ctime (void) const; |
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82 |
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83 private: |
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84 |
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85 // Seconds since the epoch. |
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86 time_t ot_unix_time; |
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87 |
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88 // Additional microseconds. |
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89 int ot_usec; |
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90 }; |
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91 |
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92 inline bool |
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93 operator == (const octave_time& t1, const octave_time& t2) |
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94 { |
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95 return (t1.unix_time () == t2.unix_time () && t1.usec () == t2.usec ()); |
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96 } |
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97 |
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98 inline bool |
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99 operator != (const octave_time& t1, const octave_time& t2) |
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100 { |
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101 return ! (t1 == t2); |
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102 } |
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103 |
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104 inline bool |
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105 operator < (const octave_time& t1, const octave_time& t2) |
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106 { |
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107 if (t1.unix_time () < t2.unix_time ()) |
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108 return true; |
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109 else if (t1.unix_time () > t2.unix_time ()) |
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110 return false; |
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111 else if (t1.usec () < t2.usec ()) |
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112 return true; |
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113 else |
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114 return false; |
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115 } |
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116 |
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117 inline bool |
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118 operator <= (const octave_time& t1, const octave_time& t2) |
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119 { |
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120 return (t1 < t2 || t1 == t2); |
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121 } |
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122 |
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123 inline bool |
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124 operator > (const octave_time& t1, const octave_time& t2) |
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125 { |
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126 if (t1.unix_time () > t2.unix_time ()) |
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127 return true; |
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128 else if (t1.unix_time () < t2.unix_time ()) |
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129 return false; |
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130 else if (t1.usec () > t2.usec ()) |
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131 return true; |
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132 else |
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133 return false; |
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134 } |
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135 |
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136 inline bool |
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137 operator >= (const octave_time& t1, const octave_time& t2) |
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138 { |
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139 return (t1 > t2 || t1 == t2); |
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140 } |
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141 |
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142 class |
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143 octave_base_tm |
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144 { |
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145 public: |
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146 |
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147 octave_base_tm (void) |
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148 : tm_usec (0), tm_sec (0), tm_min (0), tm_hour (0), |
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149 tm_mday (0), tm_mon (0), tm_year (0), tm_wday (0), |
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150 tm_yday (0), tm_isdst (0), tm_zone ("unknown") |
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151 { } |
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152 |
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153 octave_base_tm (const octave_base_tm& tm) |
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154 : tm_usec (tm.tm_usec), tm_sec (tm.tm_sec), tm_min (tm.tm_min), |
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155 tm_hour (tm.tm_hour), tm_mday (tm.tm_mday), tm_mon (tm.tm_mon), |
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156 tm_year (tm.tm_year), tm_wday (tm.tm_wday), tm_yday (tm.tm_yday), |
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157 tm_isdst (tm.tm_isdst), tm_zone (tm.tm_zone) |
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158 { } |
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159 |
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160 octave_base_tm& operator = (const octave_base_tm& tm) |
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161 { |
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162 if (this != &tm) |
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163 { |
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164 tm_usec = tm.tm_usec; |
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165 tm_sec = tm.tm_sec; |
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166 tm_min = tm.tm_min; |
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167 tm_hour = tm.tm_hour; |
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168 tm_mday = tm.tm_mday; |
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169 tm_mon = tm.tm_mon; |
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170 tm_year = tm.tm_year; |
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171 tm_wday = tm.tm_wday; |
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172 tm_yday = tm.tm_yday; |
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173 tm_isdst = tm.tm_isdst; |
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174 tm_zone = tm.tm_zone; |
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175 } |
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176 |
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177 return *this; |
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178 } |
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179 |
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180 virtual ~octave_base_tm (void) { } |
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181 |
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182 int usec (void) const { return tm_usec; } |
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183 int sec (void) const { return tm_sec; } |
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184 int min (void) const { return tm_min; } |
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185 int hour (void) const { return tm_hour; } |
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186 int mday (void) const { return tm_mday; } |
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187 int mon (void) const { return tm_mon; } |
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188 int year (void) const { return tm_year; } |
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189 int wday (void) const { return tm_wday; } |
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190 int yday (void) const { return tm_yday; } |
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191 int isdst (void) const { return tm_isdst; } |
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192 std::string zone (void) const { return tm_zone; } |
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193 |
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194 octave_base_tm& usec (int v); |
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195 octave_base_tm& sec (int v); |
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196 octave_base_tm& min (int v); |
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197 octave_base_tm& hour (int v); |
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198 octave_base_tm& mday (int v); |
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199 octave_base_tm& mon (int v); |
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200 octave_base_tm& year (int v); |
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201 octave_base_tm& wday (int v); |
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202 octave_base_tm& yday (int v); |
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203 octave_base_tm& isdst (int v); |
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204 octave_base_tm& zone (const std::string& s); |
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205 |
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206 std::string strftime (const std::string& fmt) const; |
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207 |
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208 std::string asctime (void) const |
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209 { return strftime ("%a %b %d %H:%M:%S %Y\n"); } |
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210 |
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211 protected: |
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212 |
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213 // Microseconds after the second (0, 999999). |
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214 int tm_usec; |
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215 |
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216 // Seconds after the minute (0, 61). |
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217 int tm_sec; |
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218 |
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219 // Minutes after the hour (0, 59). |
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220 int tm_min; |
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221 |
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222 // Hours since midnight (0, 23). |
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223 int tm_hour; |
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224 |
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225 // Day of the month (1, 31). |
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226 int tm_mday; |
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227 |
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228 // Months since January (0, 11). |
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229 int tm_mon; |
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230 |
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231 // Years since 1900. |
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232 int tm_year; |
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233 |
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234 // Days since Sunday (0, 6). |
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235 int tm_wday; |
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236 |
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237 // Days since January 1 (0, 365). |
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238 int tm_yday; |
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239 |
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240 // Daylight Savings Time flag. |
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241 int tm_isdst; |
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242 |
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243 // Time zone. |
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244 std::string tm_zone; |
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245 |
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246 void init (void *p); |
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247 }; |
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248 |
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249 class |
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250 octave_localtime : public octave_base_tm |
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251 { |
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252 public: |
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253 |
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254 octave_localtime (void) |
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255 : octave_base_tm () { init (octave_time ()); } |
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256 |
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257 octave_localtime (const octave_time& ot) |
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258 : octave_base_tm () { init (ot); } |
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259 |
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260 octave_localtime (const octave_localtime& t) |
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261 : octave_base_tm (t) { } |
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262 |
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263 octave_localtime& operator = (const octave_localtime& t) |
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264 { |
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265 octave_base_tm::operator = (t); |
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266 return *this; |
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267 } |
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268 |
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269 ~octave_localtime (void) { } |
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270 |
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271 private: |
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272 |
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273 void init (const octave_time& ot); |
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274 }; |
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275 |
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276 class |
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277 octave_gmtime : public octave_base_tm |
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278 { |
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279 public: |
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280 |
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281 octave_gmtime (void) |
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282 : octave_base_tm () { init (octave_time ()); } |
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283 |
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284 octave_gmtime (const octave_time& ot) |
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285 : octave_base_tm () { init (ot); } |
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286 |
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287 octave_gmtime& operator = (const octave_gmtime& t) |
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288 { |
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289 octave_base_tm::operator = (t); |
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290 return *this; |
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291 } |
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292 |
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293 ~octave_gmtime (void) { } |
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294 |
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295 private: |
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296 |
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297 void init (const octave_time& ot); |
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298 }; |
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299 |
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300 class |
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301 octave_strptime : public octave_base_tm |
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302 { |
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303 public: |
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304 |
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305 octave_strptime (const std::string& str, const std::string& fmt) |
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306 : octave_base_tm () { init (str, fmt); } |
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307 |
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308 octave_strptime (const octave_strptime& s) |
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309 : octave_base_tm (s) { nchars = s.nchars; } |
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310 |
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311 octave_strptime& operator = (const octave_strptime& s) |
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312 { |
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313 octave_base_tm::operator = (s); |
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314 nchars = s.nchars; |
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315 return *this; |
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316 } |
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317 |
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318 int characters_converted (void) const { return nchars; } |
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319 |
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320 ~octave_strptime (void) { } |
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321 |
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322 private: |
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323 |
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324 int nchars; |
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325 |
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326 void init (const std::string& str, const std::string& fmt); |
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327 }; |
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328 |
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329 #endif |
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330 |
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331 /* |
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332 ;;; Local Variables: *** |
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333 ;;; mode: C++ *** |
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334 ;;; End: *** |
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335 */ |
