Filename | /home/micha/.plenv/versions/5.38.2/lib/perl5/site_perl/5.38.2/Time/Local.pm |
Statements | Executed 37 statements in 810µs |
Calls | P | F | Exclusive Time |
Inclusive Time |
Subroutine |
---|---|---|---|---|---|
1 | 1 | 1 | 9µs | 10µs | BEGIN@3 | Time::Local::
1 | 1 | 1 | 8µs | 10µs | _daygm | Time::Local::
1 | 1 | 1 | 3µs | 24µs | BEGIN@34 | Time::Local::
1 | 1 | 1 | 3µs | 12µs | BEGIN@6 | Time::Local::
1 | 1 | 1 | 3µs | 12µs | BEGIN@10 | Time::Local::
1 | 1 | 1 | 3µs | 19µs | BEGIN@35 | Time::Local::
1 | 1 | 1 | 2µs | 16µs | BEGIN@36 | Time::Local::
1 | 1 | 1 | 2µs | 2µs | BEGIN@5 | Time::Local::
0 | 0 | 0 | 0s | 0s | _is_leap_year | Time::Local::
0 | 0 | 0 | 0s | 0s | _timegm | Time::Local::
0 | 0 | 0 | 0s | 0s | timegm | Time::Local::
0 | 0 | 0 | 0s | 0s | timegm_modern | Time::Local::
0 | 0 | 0 | 0s | 0s | timegm_nocheck | Time::Local::
0 | 0 | 0 | 0s | 0s | timegm_posix | Time::Local::
0 | 0 | 0 | 0s | 0s | timelocal | Time::Local::
0 | 0 | 0 | 0s | 0s | timelocal_modern | Time::Local::
0 | 0 | 0 | 0s | 0s | timelocal_nocheck | Time::Local::
0 | 0 | 0 | 0s | 0s | timelocal_posix | Time::Local::
Line | State ments |
Time on line |
Calls | Time in subs |
Code |
---|---|---|---|---|---|
1 | package Time::Local; | ||||
2 | |||||
3 | 2 | 17µs | 2 | 12µs | # spent 10µs (9+2) within Time::Local::BEGIN@3 which was called:
# once (9µs+2µs) by Archive::Zip::Member::BEGIN@27 at line 3 # spent 10µs making 1 call to Time::Local::BEGIN@3
# spent 2µs making 1 call to strict::import |
4 | |||||
5 | 2 | 15µs | 1 | 2µs | # spent 2µs within Time::Local::BEGIN@5 which was called:
# once (2µs+0s) by Archive::Zip::Member::BEGIN@27 at line 5 # spent 2µs making 1 call to Time::Local::BEGIN@5 |
6 | 2 | 20µs | 2 | 22µs | # spent 12µs (3+9) within Time::Local::BEGIN@6 which was called:
# once (3µs+9µs) by Archive::Zip::Member::BEGIN@27 at line 6 # spent 12µs making 1 call to Time::Local::BEGIN@6
# spent 9µs making 1 call to Exporter::import |
7 | |||||
8 | 1 | 200ns | our $VERSION = '1.35'; | ||
9 | |||||
10 | 2 | 60µs | 2 | 21µs | # spent 12µs (3+9) within Time::Local::BEGIN@10 which was called:
# once (3µs+9µs) by Archive::Zip::Member::BEGIN@27 at line 10 # spent 12µs making 1 call to Time::Local::BEGIN@10
# spent 9µs making 1 call to parent::import |
11 | |||||
12 | 1 | 700ns | our @EXPORT = qw( timegm timelocal ); | ||
13 | 1 | 500ns | our @EXPORT_OK = qw( | ||
14 | timegm_modern | ||||
15 | timelocal_modern | ||||
16 | timegm_nocheck | ||||
17 | timelocal_nocheck | ||||
18 | timegm_posix | ||||
19 | timelocal_posix | ||||
20 | ); | ||||
21 | |||||
22 | 1 | 500ns | my @MonthDays = ( 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 ); | ||
23 | |||||
24 | # Determine breakpoint for rolling century | ||||
25 | 1 | 10µs | my $ThisYear = ( localtime() )[5]; | ||
26 | 1 | 900ns | my $Breakpoint = ( $ThisYear + 50 ) % 100; | ||
27 | 1 | 300ns | my $NextCentury = $ThisYear - $ThisYear % 100; | ||
28 | 1 | 100ns | $NextCentury += 100 if $Breakpoint < 50; | ||
29 | 1 | 100ns | my $Century = $NextCentury - 100; | ||
30 | 1 | 0s | my $SecOff = 0; | ||
31 | |||||
32 | 1 | 100ns | my ( %Options, %Cheat ); | ||
33 | |||||
34 | 2 | 18µs | 2 | 45µs | # spent 24µs (3+21) within Time::Local::BEGIN@34 which was called:
# once (3µs+21µs) by Archive::Zip::Member::BEGIN@27 at line 34 # spent 24µs making 1 call to Time::Local::BEGIN@34
# spent 21µs making 1 call to constant::import |
35 | 2 | 12µs | 2 | 34µs | # spent 19µs (3+16) within Time::Local::BEGIN@35 which was called:
# once (3µs+16µs) by Archive::Zip::Member::BEGIN@27 at line 35 # spent 19µs making 1 call to Time::Local::BEGIN@35
# spent 16µs making 1 call to constant::import |
36 | 2 | 628µs | 2 | 30µs | # spent 16µs (2+14) within Time::Local::BEGIN@36 which was called:
# once (2µs+14µs) by Archive::Zip::Member::BEGIN@27 at line 36 # spent 16µs making 1 call to Time::Local::BEGIN@36
# spent 14µs making 1 call to constant::import |
37 | |||||
38 | my $MaxDay; | ||||
39 | 1 | 300ns | if ( $] < 5.012000 ) { | ||
40 | require Config; | ||||
41 | ## no critic (Variables::ProhibitPackageVars) | ||||
42 | |||||
43 | my $MaxInt; | ||||
44 | if ( $^O eq 'MacOS' ) { | ||||
45 | |||||
46 | # time_t is unsigned... | ||||
47 | $MaxInt = ( 1 << ( 8 * $Config::Config{ivsize} ) ) | ||||
48 | - 1; ## no critic qw(ProhibitPackageVars) | ||||
49 | } | ||||
50 | else { | ||||
51 | $MaxInt | ||||
52 | = ( ( 1 << ( 8 * $Config::Config{ivsize} - 2 ) ) - 1 ) * 2 | ||||
53 | + 1; ## no critic qw(ProhibitPackageVars) | ||||
54 | } | ||||
55 | |||||
56 | $MaxDay = int( ( $MaxInt - ( SECS_PER_DAY / 2 ) ) / SECS_PER_DAY ) - 1; | ||||
57 | } | ||||
58 | else { | ||||
59 | # recent localtime()'s limit is the year 2**31 | ||||
60 | 1 | 100ns | $MaxDay = 365 * ( 2**31 ); | ||
61 | |||||
62 | # On (some?) 32-bit platforms this overflows and we end up with a negative | ||||
63 | # $MaxDay, which totally breaks this module. This is the old calculation | ||||
64 | # we used from the days before Perl always had 64-bit time_t. | ||||
65 | 1 | 100ns | if ( $MaxDay < 0 ) { | ||
66 | require Config; | ||||
67 | ## no critic (Variables::ProhibitPackageVars) | ||||
68 | my $max_int | ||||
69 | = ( ( 1 << ( 8 * $Config::Config{intsize} - 2 ) ) - 1 ) * 2 + 1; | ||||
70 | $MaxDay | ||||
71 | = int( ( $max_int - ( SECS_PER_DAY / 2 ) ) / SECS_PER_DAY ) - 1; | ||||
72 | } | ||||
73 | } | ||||
74 | |||||
75 | # Determine the EPOC day for this machine | ||||
76 | 1 | 100ns | my $Epoc = 0; | ||
77 | 1 | 1µs | if ( $^O eq 'vos' ) { | ||
78 | |||||
79 | # work around posix-977 -- VOS doesn't handle dates in the range | ||||
80 | # 1970-1980. | ||||
81 | $Epoc = _daygm( 0, 0, 0, 1, 0, 70, 4, 0 ); | ||||
82 | } | ||||
83 | elsif ( $^O eq 'MacOS' ) { | ||||
84 | $MaxDay *= 2; # time_t unsigned ... quick hack? | ||||
85 | # MacOS time() is seconds since 1 Jan 1904, localtime | ||||
86 | # so we need to calculate an offset to apply later | ||||
87 | $Epoc = 693901; | ||||
88 | $SecOff = timelocal( localtime(0) ) - timelocal( gmtime(0) ); | ||||
89 | $Epoc += _daygm( gmtime(0) ); | ||||
90 | } | ||||
91 | else { | ||||
92 | 1 | 3µs | 1 | 10µs | $Epoc = _daygm( gmtime(0) ); # spent 10µs making 1 call to Time::Local::_daygm |
93 | } | ||||
94 | |||||
95 | 1 | 500ns | %Cheat = (); # clear the cache as epoc has changed | ||
96 | |||||
97 | # spent 10µs (8+1) within Time::Local::_daygm which was called:
# once (8µs+1µs) by Archive::Zip::Member::BEGIN@27 at line 92 | ||||
98 | |||||
99 | # This is written in such a byzantine way in order to avoid | ||||
100 | # lexical variables and sub calls, for speed | ||||
101 | return $_[3] + ( | ||||
102 | 1 | 8µs | 1 | 1µs | $Cheat{ pack( 'ss', @_[ 4, 5 ] ) } ||= do { # spent 1µs making 1 call to CORE::pack |
103 | 1 | 300ns | my $month = ( $_[4] + 10 ) % 12; | ||
104 | 1 | 700ns | my $year = $_[5] + 1900 - int( $month / 10 ); | ||
105 | |||||
106 | 1 | 2µs | ( ( 365 * $year ) | ||
107 | + int( $year / 4 ) | ||||
108 | - int( $year / 100 ) | ||||
109 | + int( $year / 400 ) | ||||
110 | + int( ( ( $month * 306 ) + 5 ) / 10 ) ) | ||||
111 | - $Epoc; | ||||
112 | } | ||||
113 | ); | ||||
114 | } | ||||
115 | |||||
116 | sub _timegm { | ||||
117 | my $sec | ||||
118 | = $SecOff + $_[0] | ||||
119 | + ( SECS_PER_MINUTE * $_[1] ) | ||||
120 | + ( SECS_PER_HOUR * $_[2] ); | ||||
121 | |||||
122 | return $sec + ( SECS_PER_DAY * &_daygm ); | ||||
123 | } | ||||
124 | |||||
125 | sub timegm { | ||||
126 | my ( $sec, $min, $hour, $mday, $month, $year ) = @_; | ||||
127 | my $subsec = $sec - int($sec); | ||||
128 | $sec = int($sec); | ||||
129 | |||||
130 | if ( $Options{no_year_munging} ) { | ||||
131 | $year -= 1900; | ||||
132 | } | ||||
133 | elsif ( !$Options{posix_year} ) { | ||||
134 | if ( $year >= 1000 ) { | ||||
135 | $year -= 1900; | ||||
136 | } | ||||
137 | elsif ( $year < 100 and $year >= 0 ) { | ||||
138 | $year += ( $year > $Breakpoint ) ? $Century : $NextCentury; | ||||
139 | } | ||||
140 | } | ||||
141 | |||||
142 | unless ( $Options{no_range_check} ) { | ||||
143 | Carp::croak("Month '$month' out of range 0..11") | ||||
144 | if $month > 11 | ||||
145 | or $month < 0; | ||||
146 | |||||
147 | my $md = $MonthDays[$month]; | ||||
148 | ++$md | ||||
149 | if $month == 1 && _is_leap_year( $year + 1900 ); | ||||
150 | |||||
151 | Carp::croak("Day '$mday' out of range 1..$md") | ||||
152 | if $mday > $md or $mday < 1; | ||||
153 | Carp::croak("Hour '$hour' out of range 0..23") | ||||
154 | if $hour > 23 or $hour < 0; | ||||
155 | Carp::croak("Minute '$min' out of range 0..59") | ||||
156 | if $min > 59 or $min < 0; | ||||
157 | Carp::croak("Second '$sec' out of range 0..59") | ||||
158 | if $sec >= 60 or $sec < 0; | ||||
159 | } | ||||
160 | |||||
161 | my $days = _daygm( undef, undef, undef, $mday, $month, $year ); | ||||
162 | |||||
163 | if ( abs($days) > $MaxDay && !$Options{no_range_check} ) { | ||||
164 | my $msg = "Day too big - abs($days) > $MaxDay\n"; | ||||
165 | |||||
166 | $year += 1900; | ||||
167 | $msg | ||||
168 | .= "Cannot handle date ($sec, $min, $hour, $mday, $month, $year)"; | ||||
169 | |||||
170 | Carp::croak($msg); | ||||
171 | } | ||||
172 | |||||
173 | # Adding in the $subsec value last seems to prevent floating point errors | ||||
174 | # from creeping in. | ||||
175 | return ( | ||||
176 | ( | ||||
177 | $sec + $SecOff | ||||
178 | + ( SECS_PER_MINUTE * $min ) | ||||
179 | + ( SECS_PER_HOUR * $hour ) | ||||
180 | + ( SECS_PER_DAY * $days ) | ||||
181 | ) + $subsec | ||||
182 | ); | ||||
183 | } | ||||
184 | |||||
185 | sub _is_leap_year { | ||||
186 | return 0 if $_[0] % 4; | ||||
187 | return 1 if $_[0] % 100; | ||||
188 | return 0 if $_[0] % 400; | ||||
189 | |||||
190 | return 1; | ||||
191 | } | ||||
192 | |||||
193 | sub timegm_nocheck { | ||||
194 | local $Options{no_range_check} = 1; | ||||
195 | return &timegm; | ||||
196 | } | ||||
197 | |||||
198 | sub timegm_modern { | ||||
199 | local $Options{no_year_munging} = 1; | ||||
200 | return &timegm; | ||||
201 | } | ||||
202 | |||||
203 | sub timegm_posix { | ||||
204 | local $Options{posix_year} = 1; | ||||
205 | return &timegm; | ||||
206 | } | ||||
207 | |||||
208 | sub timelocal { | ||||
209 | my $sec = shift; | ||||
210 | my $subsec = $sec - int($sec); | ||||
211 | $sec = int($sec); | ||||
212 | unshift @_, $sec; | ||||
213 | |||||
214 | my $ref_t = &timegm; | ||||
215 | my $loc_for_ref_t = _timegm( localtime($ref_t) ); | ||||
216 | |||||
217 | my $zone_off = $loc_for_ref_t - $ref_t | ||||
218 | or return $loc_for_ref_t + $subsec; | ||||
219 | |||||
220 | # Adjust for timezone | ||||
221 | my $loc_t = $ref_t - $zone_off; | ||||
222 | |||||
223 | # Are we close to a DST change or are we done | ||||
224 | my $dst_off = $ref_t - _timegm( localtime($loc_t) ); | ||||
225 | |||||
226 | # If this evaluates to true, it means that the value in $loc_t is | ||||
227 | # the _second_ hour after a DST change where the local time moves | ||||
228 | # backward. | ||||
229 | if ( | ||||
230 | !$dst_off | ||||
231 | && ( ( $ref_t - SECS_PER_HOUR ) | ||||
232 | - _timegm( localtime( $loc_t - SECS_PER_HOUR ) ) < 0 ) | ||||
233 | ) { | ||||
234 | return ( $loc_t - SECS_PER_HOUR ) + $subsec; | ||||
235 | } | ||||
236 | |||||
237 | # Adjust for DST change | ||||
238 | $loc_t += $dst_off; | ||||
239 | |||||
240 | return $loc_t + $subsec if $dst_off > 0; | ||||
241 | |||||
242 | # If the original date was a non-existent gap in a forward DST jump, we | ||||
243 | # should now have the wrong answer - undo the DST adjustment | ||||
244 | my ( $s, $m, $h ) = localtime($loc_t); | ||||
245 | $loc_t -= $dst_off if $s != $_[0] || $m != $_[1] || $h != $_[2]; | ||||
246 | |||||
247 | return $loc_t + $subsec; | ||||
248 | } | ||||
249 | |||||
250 | sub timelocal_nocheck { | ||||
251 | local $Options{no_range_check} = 1; | ||||
252 | return &timelocal; | ||||
253 | } | ||||
254 | |||||
255 | sub timelocal_modern { | ||||
256 | local $Options{no_year_munging} = 1; | ||||
257 | return &timelocal; | ||||
258 | } | ||||
259 | |||||
260 | sub timelocal_posix { | ||||
261 | local $Options{posix_year} = 1; | ||||
262 | return &timelocal; | ||||
263 | } | ||||
264 | |||||
265 | 1 | 11µs | 1; | ||
266 | |||||
267 | # ABSTRACT: Efficiently compute time from local and GMT time | ||||
268 | |||||
269 | __END__ |