Profile of DateTime/TimeZone/Local.pm

Filename	/usr/share/perl5/DateTime/TimeZone/Local.pm
Statements	Executed 19 statements in 1.52ms

Subroutines
Calls	P	F	Exclusive Time	Inclusive Time	Subroutine
1	1	1	29µs	39µs	DateTime::TimeZone::Local::::BEGIN@3DateTime::TimeZone::Local::BEGIN@3
1	1	1	19µs	56µs	DateTime::TimeZone::Local::::BEGIN@4DateTime::TimeZone::Local::BEGIN@4
1	1	1	18µs	18µs	DateTime::TimeZone::Local::::BEGIN@10DateTime::TimeZone::Local::BEGIN@10
1	1	1	16µs	81µs	DateTime::TimeZone::Local::::BEGIN@6DateTime::TimeZone::Local::BEGIN@6
1	1	1	11µs	11µs	DateTime::TimeZone::Local::::BEGIN@9DateTime::TimeZone::Local::BEGIN@9
0	0	0	0s	0s	DateTime::TimeZone::Local::::FromEnvDateTime::TimeZone::Local::FromEnv
0	0	0	0s	0s	DateTime::TimeZone::Local::::TimeZoneDateTime::TimeZone::Local::TimeZone
0	0	0	0s	0s	DateTime::TimeZone::Local::_IsValidName
0	0	0	0s	0s	DateTime::TimeZone::Local::_load_subclass

Call graph for these subroutines as a Graphviz dot language file.

Line	State ments	Time on line	Calls	Time in subs	Code
1					package DateTime::TimeZone::Local;
2
3	3	53µs	2	48µs	# spent 39µs (29+9) within DateTime::TimeZone::Local::BEGIN@3 which was called: # once (29µs+9µs) by DateTime::TimeZone::BEGIN@12 at line 3 use strict; # spent 39µs making 1 call to DateTime::TimeZone::Local::BEGIN@3 # spent 9µs making 1 call to strict::import
4	3	53µs	2	92µs	# spent 56µs (19+36) within DateTime::TimeZone::Local::BEGIN@4 which was called: # once (19µs+36µs) by DateTime::TimeZone::BEGIN@12 at line 4 use warnings; # spent 56µs making 1 call to DateTime::TimeZone::Local::BEGIN@4 # spent 36µs making 1 call to warnings::import
5
6	3	107µs	2	145µs	# spent 81µs (16+64) within DateTime::TimeZone::Local::BEGIN@6 which was called: # once (16µs+64µs) by DateTime::TimeZone::BEGIN@12 at line 6 use vars qw( $VERSION ); # spent 81µs making 1 call to DateTime::TimeZone::Local::BEGIN@6 # spent 64µs making 1 call to vars::import
7	1	2µs			$VERSION = '0.01';
8
9	3	47µs	1	11µs	# spent 11µs within DateTime::TimeZone::Local::BEGIN@9 which was called: # once (11µs+0s) by DateTime::TimeZone::BEGIN@12 at line 9 use DateTime::TimeZone; # spent 11µs making 1 call to DateTime::TimeZone::Local::BEGIN@9
10	3	701µs	1	18µs	# spent 18µs within DateTime::TimeZone::Local::BEGIN@10 which was called: # once (18µs+0s) by DateTime::TimeZone::BEGIN@12 at line 10 use File::Spec; # spent 18µs making 1 call to DateTime::TimeZone::Local::BEGIN@10
11
12					sub TimeZone {
13					my $class = shift;
14
15					my $subclass = $class->_load_subclass();
16
17					for my $meth ( $subclass->Methods() ) {
18					my $tz = $subclass->$meth();
19
20					return $tz if $tz;
21					}
22
23					die "Cannot determine local time zone\n";
24					}
25
26					{
27					# Stolen from File::Spec. My theory is that other folks can write
28					# the non-existent modules if they feel a need, and release them
29					# to CPAN separately.
30	2	549µs			my %subclass = (
31					MSWin32 => 'Win32',
32					VMS => 'VMS',
33					MacOS => 'Mac',
34					os2 => 'OS2',
35					epoc => 'Epoc',
36					NetWare => 'Win32',
37					symbian => 'Win32',
38					dos => 'OS2',
39					cygwin => 'Unix',
40					);
41
42					sub _load_subclass {
43					my $class = shift;
44
45					my $os_name = $subclass{$^O} \|\| $^O;
46					my $subclass = $class . '::' . $os_name;
47
48					return $subclass if $subclass->can('Methods');
49
50					local $@;
51					local $SIG{__DIE__};
52					eval "use $subclass";
53					if ( my $e = $@ ) {
54					if ( $e =~ /locate.+$os_name/ ) {
55					$subclass = $class . '::' . 'Unix';
56
57					eval "use $subclass";
58					my $e2 = $@;
59					die $e2 if $e2;
60					}
61					else {
62					die $e;
63					}
64					}
65
66					return $subclass;
67					}
68					}
69
70					sub FromEnv {
71					my $class = shift;
72
73					foreach my $var ( $class->EnvVars() ) {
74					if ( $class->_IsValidName( $ENV{$var} ) ) {
75					my $tz;
76					{
77					local $@;
78					local $SIG{__DIE__};
79					$tz = eval { DateTime::TimeZone->new( name => $ENV{$var} ) };
80					}
81					return $tz if $tz;
82					}
83					}
84
85					return;
86					}
87
88					sub _IsValidName {
89					shift;
90
91					return 0 unless defined $_[0];
92					return 0 if $_[0] eq 'local';
93
94					return $_[0] =~ m{^[\w/\-\+]+$};
95					}
96
97	1	12µs			1;
98
99					__END__