Filename | /2home/ss5/perl5/perlbrew/perls/perl-5.12.3/lib/5.12.3/Time/Local.pm |
Statements | Executed 44 statements in 888µs |
Calls | P | F | Exclusive Time |
Inclusive Time |
Subroutine |
---|---|---|---|---|---|
1 | 1 | 1 | 16µs | 76µs | BEGIN@8 | Time::Local::
1 | 1 | 1 | 16µs | 73µs | BEGIN@4 | Time::Local::
1 | 1 | 1 | 15µs | 19µs | _daygm | Time::Local::
1 | 1 | 1 | 12µs | 27µs | BEGIN@5 | Time::Local::
1 | 1 | 1 | 10µs | 14µs | BEGIN@6 | Time::Local::
1 | 1 | 1 | 8µs | 52µs | BEGIN@27 | Time::Local::
1 | 1 | 1 | 5µs | 29µs | BEGIN@29 | Time::Local::
1 | 1 | 1 | 5µs | 29µs | BEGIN@28 | Time::Local::
1 | 1 | 1 | 4µs | 4µs | CORE:pack (opcode) | 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_nocheck | Time::Local::
0 | 0 | 0 | 0s | 0s | timelocal | Time::Local::
0 | 0 | 0 | 0s | 0s | timelocal_nocheck | Time::Local::
Line | State ments |
Time on line |
Calls | Time in subs |
Code |
---|---|---|---|---|---|
1 | package Time::Local; | ||||
2 | |||||
3 | 1 | 600ns | require Exporter; | ||
4 | 3 | 41µs | 2 | 131µs | # spent 73µs (16+58) within Time::Local::BEGIN@4 which was called:
# once (16µs+58µs) by DateTime::BEGIN@49 at line 4 # spent 73µs making 1 call to Time::Local::BEGIN@4
# spent 58µs making 1 call to Exporter::import |
5 | 3 | 23µs | 2 | 41µs | # spent 27µs (12+14) within Time::Local::BEGIN@5 which was called:
# once (12µs+14µs) by DateTime::BEGIN@49 at line 5 # spent 27µs making 1 call to Time::Local::BEGIN@5
# spent 14µs making 1 call to Config::import |
6 | 3 | 20µs | 2 | 19µs | # spent 14µs (10+5) within Time::Local::BEGIN@6 which was called:
# once (10µs+5µs) by DateTime::BEGIN@49 at line 6 # spent 14µs making 1 call to Time::Local::BEGIN@6
# spent 5µs making 1 call to strict::import |
7 | |||||
8 | 3 | 87µs | 2 | 135µs | # spent 76µs (16+60) within Time::Local::BEGIN@8 which was called:
# once (16µs+60µs) by DateTime::BEGIN@49 at line 8 # spent 76µs making 1 call to Time::Local::BEGIN@8
# spent 60µs making 1 call to vars::import |
9 | 1 | 400ns | $VERSION = '1.1901_01'; | ||
10 | |||||
11 | 1 | 8µs | @ISA = qw( Exporter ); | ||
12 | 1 | 700ns | @EXPORT = qw( timegm timelocal ); | ||
13 | 1 | 600ns | @EXPORT_OK = qw( timegm_nocheck timelocal_nocheck ); | ||
14 | |||||
15 | 1 | 1µs | my @MonthDays = ( 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 ); | ||
16 | |||||
17 | # Determine breakpoint for rolling century | ||||
18 | 1 | 23µs | my $ThisYear = ( localtime() )[5]; | ||
19 | 1 | 2µs | my $Breakpoint = ( $ThisYear + 50 ) % 100; | ||
20 | 1 | 1µs | my $NextCentury = $ThisYear - $ThisYear % 100; | ||
21 | 1 | 200ns | $NextCentury += 100 if $Breakpoint < 50; | ||
22 | 1 | 200ns | my $Century = $NextCentury - 100; | ||
23 | 1 | 200ns | my $SecOff = 0; | ||
24 | |||||
25 | 1 | 400ns | my ( %Options, %Cheat ); | ||
26 | |||||
27 | 3 | 20µs | 2 | 95µs | # spent 52µs (8+44) within Time::Local::BEGIN@27 which was called:
# once (8µs+44µs) by DateTime::BEGIN@49 at line 27 # spent 52µs making 1 call to Time::Local::BEGIN@27
# spent 44µs making 1 call to constant::import |
28 | 3 | 20µs | 2 | 52µs | # spent 29µs (5+23) within Time::Local::BEGIN@28 which was called:
# once (5µs+23µs) by DateTime::BEGIN@49 at line 28 # spent 29µs making 1 call to Time::Local::BEGIN@28
# spent 23µs making 1 call to constant::import |
29 | 3 | 589µs | 2 | 52µs | # spent 29µs (5+23) within Time::Local::BEGIN@29 which was called:
# once (5µs+23µs) by DateTime::BEGIN@49 at line 29 # spent 29µs making 1 call to Time::Local::BEGIN@29
# spent 23µs making 1 call to constant::import |
30 | |||||
31 | # localtime()'s limit is the year 2**31 | ||||
32 | 1 | 100ns | my $MaxDay = 365 * (2**31); | ||
33 | |||||
34 | # Determine the EPOC day for this machine | ||||
35 | 1 | 100ns | my $Epoc = 0; | ||
36 | 1 | 2µs | if ( $^O eq 'vos' ) { | ||
37 | # work around posix-977 -- VOS doesn't handle dates in the range | ||||
38 | # 1970-1980. | ||||
39 | $Epoc = _daygm( 0, 0, 0, 1, 0, 70, 4, 0 ); | ||||
40 | } | ||||
41 | elsif ( $^O eq 'MacOS' ) { | ||||
42 | $MaxDay *=2 if $^O eq 'MacOS'; # time_t unsigned ... quick hack? | ||||
43 | # MacOS time() is seconds since 1 Jan 1904, localtime | ||||
44 | # so we need to calculate an offset to apply later | ||||
45 | $Epoc = 693901; | ||||
46 | $SecOff = timelocal( localtime(0)) - timelocal( gmtime(0) ) ; | ||||
47 | $Epoc += _daygm( gmtime(0) ); | ||||
48 | } | ||||
49 | else { | ||||
50 | 1 | 10µs | 1 | 19µs | $Epoc = _daygm( gmtime(0) ); # spent 19µs making 1 call to Time::Local::_daygm |
51 | } | ||||
52 | |||||
53 | 1 | 800ns | %Cheat = (); # clear the cache as epoc has changed | ||
54 | |||||
55 | # spent 19µs (15+4) within Time::Local::_daygm which was called:
# once (15µs+4µs) by DateTime::BEGIN@49 at line 50 | ||||
56 | |||||
57 | # This is written in such a byzantine way in order to avoid | ||||
58 | # lexical variables and sub calls, for speed | ||||
59 | return $_[3] + ( | ||||
60 | 4 | 21µs | 1 | 4µs | $Cheat{ pack( 'ss', @_[ 4, 5 ] ) } ||= do { # spent 4µs making 1 call to Time::Local::CORE:pack |
61 | my $month = ( $_[4] + 10 ) % 12; | ||||
62 | my $year = $_[5] + 1900 - int($month / 10); | ||||
63 | |||||
64 | ( ( 365 * $year ) | ||||
65 | + int( $year / 4 ) | ||||
66 | - int( $year / 100 ) | ||||
67 | + int( $year / 400 ) | ||||
68 | + int( ( ( $month * 306 ) + 5 ) / 10 ) | ||||
69 | ) | ||||
70 | - $Epoc; | ||||
71 | } | ||||
72 | ); | ||||
73 | } | ||||
74 | |||||
75 | sub _timegm { | ||||
76 | my $sec = | ||||
77 | $SecOff + $_[0] + ( SECS_PER_MINUTE * $_[1] ) + ( SECS_PER_HOUR * $_[2] ); | ||||
78 | |||||
79 | return $sec + ( SECS_PER_DAY * &_daygm ); | ||||
80 | } | ||||
81 | |||||
82 | sub timegm { | ||||
83 | my ( $sec, $min, $hour, $mday, $month, $year ) = @_; | ||||
84 | |||||
85 | if ( $year >= 1000 ) { | ||||
86 | $year -= 1900; | ||||
87 | } | ||||
88 | elsif ( $year < 100 and $year >= 0 ) { | ||||
89 | $year += ( $year > $Breakpoint ) ? $Century : $NextCentury; | ||||
90 | } | ||||
91 | |||||
92 | unless ( $Options{no_range_check} ) { | ||||
93 | croak "Month '$month' out of range 0..11" | ||||
94 | if $month > 11 | ||||
95 | or $month < 0; | ||||
96 | |||||
97 | my $md = $MonthDays[$month]; | ||||
98 | ++$md | ||||
99 | if $month == 1 && _is_leap_year( $year + 1900 ); | ||||
100 | |||||
101 | croak "Day '$mday' out of range 1..$md" if $mday > $md or $mday < 1; | ||||
102 | croak "Hour '$hour' out of range 0..23" if $hour > 23 or $hour < 0; | ||||
103 | croak "Minute '$min' out of range 0..59" if $min > 59 or $min < 0; | ||||
104 | croak "Second '$sec' out of range 0..59" if $sec > 59 or $sec < 0; | ||||
105 | } | ||||
106 | |||||
107 | my $days = _daygm( undef, undef, undef, $mday, $month, $year ); | ||||
108 | |||||
109 | unless ($Options{no_range_check} or abs($days) < $MaxDay) { | ||||
110 | my $msg = ''; | ||||
111 | $msg .= "Day too big - $days > $MaxDay\n" if $days > $MaxDay; | ||||
112 | |||||
113 | $year += 1900; | ||||
114 | $msg .= "Cannot handle date ($sec, $min, $hour, $mday, $month, $year)"; | ||||
115 | |||||
116 | croak $msg; | ||||
117 | } | ||||
118 | |||||
119 | return $sec | ||||
120 | + $SecOff | ||||
121 | + ( SECS_PER_MINUTE * $min ) | ||||
122 | + ( SECS_PER_HOUR * $hour ) | ||||
123 | + ( SECS_PER_DAY * $days ); | ||||
124 | } | ||||
125 | |||||
126 | sub _is_leap_year { | ||||
127 | return 0 if $_[0] % 4; | ||||
128 | return 1 if $_[0] % 100; | ||||
129 | return 0 if $_[0] % 400; | ||||
130 | |||||
131 | return 1; | ||||
132 | } | ||||
133 | |||||
134 | sub timegm_nocheck { | ||||
135 | local $Options{no_range_check} = 1; | ||||
136 | return &timegm; | ||||
137 | } | ||||
138 | |||||
139 | sub timelocal { | ||||
140 | my $ref_t = &timegm; | ||||
141 | my $loc_for_ref_t = _timegm( localtime($ref_t) ); | ||||
142 | |||||
143 | my $zone_off = $loc_for_ref_t - $ref_t | ||||
144 | or return $loc_for_ref_t; | ||||
145 | |||||
146 | # Adjust for timezone | ||||
147 | my $loc_t = $ref_t - $zone_off; | ||||
148 | |||||
149 | # Are we close to a DST change or are we done | ||||
150 | my $dst_off = $ref_t - _timegm( localtime($loc_t) ); | ||||
151 | |||||
152 | # If this evaluates to true, it means that the value in $loc_t is | ||||
153 | # the _second_ hour after a DST change where the local time moves | ||||
154 | # backward. | ||||
155 | if ( ! $dst_off && | ||||
156 | ( ( $ref_t - SECS_PER_HOUR ) - _timegm( localtime( $loc_t - SECS_PER_HOUR ) ) < 0 ) | ||||
157 | ) { | ||||
158 | return $loc_t - SECS_PER_HOUR; | ||||
159 | } | ||||
160 | |||||
161 | # Adjust for DST change | ||||
162 | $loc_t += $dst_off; | ||||
163 | |||||
164 | return $loc_t if $dst_off > 0; | ||||
165 | |||||
166 | # If the original date was a non-extent gap in a forward DST jump, | ||||
167 | # we should now have the wrong answer - undo the DST adjustment | ||||
168 | my ( $s, $m, $h ) = localtime($loc_t); | ||||
169 | $loc_t -= $dst_off if $s != $_[0] || $m != $_[1] || $h != $_[2]; | ||||
170 | |||||
171 | return $loc_t; | ||||
172 | } | ||||
173 | |||||
174 | sub timelocal_nocheck { | ||||
175 | local $Options{no_range_check} = 1; | ||||
176 | return &timelocal; | ||||
177 | } | ||||
178 | |||||
179 | 1 | 14µs | 1; | ||
180 | |||||
181 | __END__ | ||||
# spent 4µs within Time::Local::CORE:pack which was called:
# once (4µs+0s) by Time::Local::_daygm at line 60 |