Profile of IO/File.pm

Filename	/usr/lib/perl/5.10/IO/File.pm
Statements	Executed 32 statements in 1.41ms

Subroutines
Calls	P	F	Exclusive Time	Inclusive Time	Subroutine
1	1	1	1.02ms	5.69ms	IO::File::::BEGIN@11IO::File::BEGIN@11
1	1	1	356µs	547µs	IO::File::::BEGIN@10IO::File::BEGIN@10
68	1	1	92µs	92µs	IO::File::::CORE:matchIO::File::CORE:match (opcode)
1	1	1	33µs	33µs	IO::File::::BEGIN@5IO::File::BEGIN@5
1	1	1	18µs	103µs	IO::File::::BEGIN@9IO::File::BEGIN@9
1	1	1	16µs	99µs	IO::File::::BEGIN@8IO::File::BEGIN@8
1	1	1	14µs	14µs	IO::File::::BEGIN@12IO::File::BEGIN@12
1	1	1	14µs	20µs	IO::File::::BEGIN@6IO::File::BEGIN@6
0	0	0	0s	0s	IO::File::::binmodeIO::File::binmode
0	0	0	0s	0s	IO::File::::newIO::File::new
0	0	0	0s	0s	IO::File::::openIO::File::open

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

Line	State ments	Time on line	Calls	Time in subs	Code
1					#
2
3					package IO::File;
4
5	3	62µs	1	33µs	# spent 33µs within IO::File::BEGIN@5 which was called: # once (33µs+0s) by Storable::BEGIN@23 at line 5 use 5.006_001; # spent 33µs making 1 call to IO::File::BEGIN@5
6	3	69µs	2	26µs	# spent 20µs (14+6) within IO::File::BEGIN@6 which was called: # once (14µs+6µs) by Storable::BEGIN@23 at line 6 use strict; # spent 20µs making 1 call to IO::File::BEGIN@6 # spent 6µs making 1 call to strict::import
7	1	1µs			our($VERSION, @EXPORT, @EXPORT_OK, @ISA);
8	3	40µs	2	182µs	# spent 99µs (16+83) within IO::File::BEGIN@8 which was called: # once (16µs+83µs) by Storable::BEGIN@23 at line 8 use Carp; # spent 99µs making 1 call to IO::File::BEGIN@8 # spent 83µs making 1 call to Exporter::import
9	3	44µs	2	188µs	# spent 103µs (18+85) within IO::File::BEGIN@9 which was called: # once (18µs+85µs) by Storable::BEGIN@23 at line 9 use Symbol; # spent 103µs making 1 call to IO::File::BEGIN@9 # spent 85µs making 1 call to Exporter::import
10	3	202µs	1	547µs	# spent 547µs (356+191) within IO::File::BEGIN@10 which was called: # once (356µs+191µs) by Storable::BEGIN@23 at line 10 use SelectSaver; # spent 547µs making 1 call to IO::File::BEGIN@10
11	3	167µs	2	5.77ms	# spent 5.69ms (1.02+4.67) within IO::File::BEGIN@11 which was called: # once (1.02ms+4.67ms) by Storable::BEGIN@23 at line 11 use IO::Seekable; # spent 5.69ms making 1 call to IO::File::BEGIN@11 # spent 72µs making 1 call to Exporter::import
12	3	494µs	1	14µs	# spent 14µs within IO::File::BEGIN@12 which was called: # once (14µs+0s) by Storable::BEGIN@23 at line 12 use File::Spec; # spent 14µs making 1 call to IO::File::BEGIN@12
13
14	1	1µs			require Exporter;
15
16	1	24µs			@ISA = qw(IO::Handle IO::Seekable Exporter);
17
18	1	2µs			$VERSION = "1.14";
19
20	1	2µs			@EXPORT = @IO::Seekable::EXPORT;
21
22	1	3µs			eval {
23					# Make all Fcntl O_XXX constants available for importing
24	1	1µs			require Fcntl;
25	1	261µs	68	92µs	my @O = grep /^O_/, @Fcntl::EXPORT; # spent 92µs making 68 calls to IO::File::CORE:match, avg 1µs/call
26	1	6µs	1	336µs	Fcntl->import(@O); # first we import what we want to export # spent 336µs making 1 call to Exporter::import
27	1	14µs			push(@EXPORT, @O);
28					};
29
30					################################################
31					## Constructor
32					##
33
34					sub new {
35					my $type = shift;
36					my $class = ref($type) \|\| $type \|\| "IO::File";
37					@_ >= 0 && @_ <= 3
38					or croak "usage: new $class [FILENAME [,MODE [,PERMS]]]";
39					my $fh = $class->SUPER::new();
40					if (@_) {
41					$fh->open(@_)
42					or return undef;
43					}
44					$fh;
45					}
46
47					################################################
48					## Open
49					##
50
51					sub open {
52					@_ >= 2 && @_ <= 4 or croak 'usage: $fh->open(FILENAME [,MODE [,PERMS]])';
53					my ($fh, $file) = @_;
54					if (@_ > 2) {
55					my ($mode, $perms) = @_[2, 3];
56					if ($mode =~ /^\d+$/) {
57					defined $perms or $perms = 0666;
58					return sysopen($fh, $file, $mode, $perms);
59					} elsif ($mode =~ /:/) {
60					return open($fh, $mode, $file) if @_ == 3;
61					croak 'usage: $fh->open(FILENAME, IOLAYERS)';
62					} else {
63					return open($fh, IO::Handle::_open_mode_string($mode), $file);
64					}
65					}
66					open($fh, $file);
67					}
68
69					################################################
70					## Binmode
71					##
72
73					sub binmode {
74					( @_ == 1 or @_ == 2 ) or croak 'usage $fh->binmode([LAYER])';
75
76					my($fh, $layer) = @_;
77
78					return binmode $$fh unless $layer;
79					return binmode $$fh, $layer;
80					}
81
82	1	13µs			1;

					# spent 92µs within IO::File::CORE:match which was called 68 times, avg 1µs/call: # 68 times (92µs+0s) by Storable::BEGIN@23 at line 25, avg 1µs/call sub IO::File::CORE:match; # opcode