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For /usr/local/src/github.com/foswiki/core/bin/view
  Run on Sun Dec 4 17:17:59 2011
Reported on Sun Dec 4 17:27:16 2011

Filename/usr/share/perl/5.14/Time/Local.pm
StatementsExecuted 56 statements in 2.03ms
Subroutines
Calls P F Exclusive
Time
Inclusive
Time
Subroutine
22146µs55µsTime::Local::::_daygmTime::Local::_daygm
11142µs205µsTime::Local::::BEGIN@4Time::Local::BEGIN@4
11132µs51µsTime::Local::::timegmTime::Local::timegm
11126µs173µsTime::Local::::BEGIN@27Time::Local::BEGIN@27
11125µs200µsTime::Local::::BEGIN@8Time::Local::BEGIN@8
11124µs63µsTime::Local::::BEGIN@5Time::Local::BEGIN@5
11117µs29µsTime::Local::::BEGIN@6Time::Local::BEGIN@6
11116µs106µsTime::Local::::BEGIN@28Time::Local::BEGIN@28
11116µs111µsTime::Local::::BEGIN@29Time::Local::BEGIN@29
2119µs9µsTime::Local::::CORE:packTime::Local::CORE:pack (opcode)
0000s0sTime::Local::::_is_leap_yearTime::Local::_is_leap_year
0000s0sTime::Local::::_timegmTime::Local::_timegm
0000s0sTime::Local::::timegm_nocheckTime::Local::timegm_nocheck
0000s0sTime::Local::::timelocalTime::Local::timelocal
0000s0sTime::Local::::timelocal_nocheckTime::Local::timelocal_nocheck
Call graph for these subroutines as a Graphviz dot language file.
Line State
ments
Time
on line
Calls Time
in subs
Code
1package Time::Local;
2
312µsrequire Exporter;
4265µs2368µs
# spent 205µs (42+163) within Time::Local::BEGIN@4 which was called: # once (42µs+163µs) by Foswiki::Time::parseTime at line 4
use Carp;
# spent 205µs making 1 call to Time::Local::BEGIN@4 # spent 163µs making 1 call to Exporter::import
5255µs2102µs
# spent 63µs (24+39) within Time::Local::BEGIN@5 which was called: # once (24µs+39µs) by Foswiki::Time::parseTime at line 5
use Config;
# spent 63µs making 1 call to Time::Local::BEGIN@5 # spent 39µs making 1 call to Config::import
6249µs242µs
# spent 29µs (17+12) within Time::Local::BEGIN@6 which was called: # once (17µs+12µs) by Foswiki::Time::parseTime at line 6
use strict;
# spent 29µs making 1 call to Time::Local::BEGIN@6 # spent 12µs making 1 call to strict::import
7
82178µs2375µs
# spent 200µs (25+175) within Time::Local::BEGIN@8 which was called: # once (25µs+175µs) by Foswiki::Time::parseTime at line 8
use vars qw( $VERSION @ISA @EXPORT @EXPORT_OK );
# spent 200µs making 1 call to Time::Local::BEGIN@8 # spent 175µs making 1 call to vars::import
912µs$VERSION = '1.2000';
10
11137µs@ISA = qw( Exporter );
1213µs@EXPORT = qw( timegm timelocal );
1312µs@EXPORT_OK = qw( timegm_nocheck timelocal_nocheck );
14
1513µsmy @MonthDays = ( 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 );
16
17# Determine breakpoint for rolling century
18125µsmy $ThisYear = ( localtime() )[5];
1913µsmy $Breakpoint = ( $ThisYear + 50 ) % 100;
2012µsmy $NextCentury = $ThisYear - $ThisYear % 100;
2111µs$NextCentury += 100 if $Breakpoint < 50;
2211µsmy $Century = $NextCentury - 100;
2311µsmy $SecOff = 0;
24
2512µsmy ( %Options, %Cheat );
26
27260µs2320µs
# spent 173µs (26+147) within Time::Local::BEGIN@27 which was called: # once (26µs+147µs) by Foswiki::Time::parseTime at line 27
use constant SECS_PER_MINUTE => 60;
# spent 173µs making 1 call to Time::Local::BEGIN@27 # spent 147µs making 1 call to constant::import
28247µs2195µs
# spent 106µs (16+90) within Time::Local::BEGIN@28 which was called: # once (16µs+90µs) by Foswiki::Time::parseTime at line 28
use constant SECS_PER_HOUR => 3600;
# spent 106µs making 1 call to Time::Local::BEGIN@28 # spent 90µs making 1 call to constant::import
2921.34ms2206µs
# spent 111µs (16+95) within Time::Local::BEGIN@29 which was called: # once (16µs+95µs) by Foswiki::Time::parseTime at line 29
use constant SECS_PER_DAY => 86400;
# spent 111µs making 1 call to Time::Local::BEGIN@29 # spent 95µs making 1 call to constant::import
30
3111µsmy $MaxDay;
3213µsif ($] < 5.012000) {
33 my $MaxInt;
34 if ( $^O eq 'MacOS' ) {
35 # time_t is unsigned...
36 $MaxInt = ( 1 << ( 8 * $Config{ivsize} ) ) - 1;
37 }
38 else {
39 $MaxInt = ( ( 1 << ( 8 * $Config{ivsize} - 2 ) ) - 1 ) * 2 + 1;
40 }
41
42 $MaxDay = int( ( $MaxInt - ( SECS_PER_DAY / 2 ) ) / SECS_PER_DAY ) - 1;
43}
44else {
45 # recent localtime()'s limit is the year 2**31
4612µs $MaxDay = 365 * (2**31);
47}
48
49# Determine the EPOC day for this machine
5011µsmy $Epoc = 0;
5119µsif ( $^O eq 'vos' ) {
52 # work around posix-977 -- VOS doesn't handle dates in the range
53 # 1970-1980.
54 $Epoc = _daygm( 0, 0, 0, 1, 0, 70, 4, 0 );
55}
56elsif ( $^O eq 'MacOS' ) {
57 $MaxDay *=2 if $^O eq 'MacOS'; # time_t unsigned ... quick hack?
58 # MacOS time() is seconds since 1 Jan 1904, localtime
59 # so we need to calculate an offset to apply later
60 $Epoc = 693901;
61 $SecOff = timelocal( localtime(0)) - timelocal( gmtime(0) ) ;
62 $Epoc += _daygm( gmtime(0) );
63}
64else {
6519µs135µs $Epoc = _daygm( gmtime(0) );
# spent 35µs making 1 call to Time::Local::_daygm
66}
67
6813µs%Cheat = (); # clear the cache as epoc has changed
69
70
# spent 55µs (46+9) within Time::Local::_daygm which was called 2 times, avg 27µs/call: # once (29µs+6µs) by Foswiki::Time::parseTime at line 65 # once (17µs+2µs) by Time::Local::timegm at line 122
sub _daygm {
71
72 # This is written in such a byzantine way in order to avoid
73 # lexical variables and sub calls, for speed
74 return $_[3] + (
75244µs29µs $Cheat{ pack( 'ss', @_[ 4, 5 ] ) } ||= do {
# spent 9µs making 2 calls to Time::Local::CORE:pack, avg 4µs/call
7624µs my $month = ( $_[4] + 10 ) % 12;
7726µs my $year = $_[5] + 1900 - int($month / 10);
78
7927µs ( ( 365 * $year )
80 + int( $year / 4 )
81 - int( $year / 100 )
82 + int( $year / 400 )
83 + int( ( ( $month * 306 ) + 5 ) / 10 )
84 )
85 - $Epoc;
86 }
87 );
88}
89
90sub _timegm {
91 my $sec =
92 $SecOff + $_[0] + ( SECS_PER_MINUTE * $_[1] ) + ( SECS_PER_HOUR * $_[2] );
93
94 return $sec + ( SECS_PER_DAY * &_daygm );
95}
96
97
# spent 51µs (32+19) within Time::Local::timegm which was called: # once (32µs+19µs) by Foswiki::Time::parseTime at line 223 of /usr/local/src/github.com/foswiki/core/lib/Foswiki/Time.pm
sub timegm {
9812µs my ( $sec, $min, $hour, $mday, $month, $year ) = @_;
99
10012µs if ( $year >= 1000 ) {
101 $year -= 1900;
102 }
103 elsif ( $year < 100 and $year >= 0 ) {
104 $year += ( $year > $Breakpoint ) ? $Century : $NextCentury;
105 }
106
10713µs unless ( $Options{no_range_check} ) {
10811µs croak "Month '$month' out of range 0..11"
109 if $month > 11
110 or $month < 0;
111
11211µs my $md = $MonthDays[$month];
11311µs ++$md
114 if $month == 1 && _is_leap_year( $year + 1900 );
115
11611µs croak "Day '$mday' out of range 1..$md" if $mday > $md or $mday < 1;
11711µs croak "Hour '$hour' out of range 0..23" if $hour > 23 or $hour < 0;
11811µs croak "Minute '$min' out of range 0..59" if $min > 59 or $min < 0;
11912µs croak "Second '$sec' out of range 0..59" if $sec > 59 or $sec < 0;
120 }
121
12215µs119µs my $days = _daygm( undef, undef, undef, $mday, $month, $year );
# spent 19µs making 1 call to Time::Local::_daygm
123
12412µs unless ($Options{no_range_check} or abs($days) < $MaxDay) {
125 my $msg = '';
126 $msg .= "Day too big - $days > $MaxDay\n" if $days > $MaxDay;
127
128 $year += 1900;
129 $msg .= "Cannot handle date ($sec, $min, $hour, $mday, $month, $year)";
130
131 croak $msg;
132 }
133
13418µs return $sec
135 + $SecOff
136 + ( SECS_PER_MINUTE * $min )
137 + ( SECS_PER_HOUR * $hour )
138 + ( SECS_PER_DAY * $days );
139}
140
141sub _is_leap_year {
142 return 0 if $_[0] % 4;
143 return 1 if $_[0] % 100;
144 return 0 if $_[0] % 400;
145
146 return 1;
147}
148
149sub timegm_nocheck {
150 local $Options{no_range_check} = 1;
151 return &timegm;
152}
153
154sub timelocal {
155 my $ref_t = &timegm;
156 my $loc_for_ref_t = _timegm( localtime($ref_t) );
157
158 my $zone_off = $loc_for_ref_t - $ref_t
159 or return $loc_for_ref_t;
160
161 # Adjust for timezone
162 my $loc_t = $ref_t - $zone_off;
163
164 # Are we close to a DST change or are we done
165 my $dst_off = $ref_t - _timegm( localtime($loc_t) );
166
167 # If this evaluates to true, it means that the value in $loc_t is
168 # the _second_ hour after a DST change where the local time moves
169 # backward.
170 if ( ! $dst_off &&
171 ( ( $ref_t - SECS_PER_HOUR ) - _timegm( localtime( $loc_t - SECS_PER_HOUR ) ) < 0 )
172 ) {
173 return $loc_t - SECS_PER_HOUR;
174 }
175
176 # Adjust for DST change
177 $loc_t += $dst_off;
178
179 return $loc_t if $dst_off > 0;
180
181 # If the original date was a non-extent gap in a forward DST jump,
182 # we should now have the wrong answer - undo the DST adjustment
183 my ( $s, $m, $h ) = localtime($loc_t);
184 $loc_t -= $dst_off if $s != $_[0] || $m != $_[1] || $h != $_[2];
185
186 return $loc_t;
187}
188
189sub timelocal_nocheck {
190 local $Options{no_range_check} = 1;
191 return &timelocal;
192}
193
194136µs1;
195
196__END__
 
# spent 9µs within Time::Local::CORE:pack which was called 2 times, avg 4µs/call: # 2 times (9µs+0s) by Time::Local::_daygm at line 75, avg 4µs/call
sub Time::Local::CORE:pack; # opcode