Profile of FileHandle.pm

Filename	/usr/lib/x86_64-linux-gnu/perl-base/FileHandle.pm
Statements	Executed 73 statements in 439µs

Subroutines
Calls	P	F	Exclusive Time	Inclusive Time	Subroutine
1	1	1	13µs	13µs	FileHandle::::BEGIN@3FileHandle::BEGIN@3
1	1	1	9µs	198µs	FileHandle::::importFileHandle::import
1	1	1	4µs	9µs	FileHandle::::BEGIN@46FileHandle::BEGIN@46
1	1	1	4µs	5µs	FileHandle::::BEGIN@4FileHandle::BEGIN@4
0	0	0	0s	0s	FileHandle::::pipeFileHandle::pipe

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

Line	State ments	Time on line	Calls	Time in subs	Code
1					package FileHandle;
2
3	2	29µs	1	13µs	# spent 13µs within FileHandle::BEGIN@3 which was called: # once (13µs+0s) by IPC::Cmd::BEGIN@5 at line 3 use 5.006; # spent 13µs making 1 call to FileHandle::BEGIN@3
4	2	82µs	2	6µs	# spent 5µs (4+1) within FileHandle::BEGIN@4 which was called: # once (4µs+1µs) by IPC::Cmd::BEGIN@5 at line 4 use strict; # spent 5µs making 1 call to FileHandle::BEGIN@4 # spent 1µs making 1 call to strict::import
5					our($VERSION, @ISA, @EXPORT, @EXPORT_OK);
6
7	1	300ns			$VERSION = "2.03";
8
9	1	79µs			require IO::File;
10	1	5µs			@ISA = qw(IO::File);
11
12	1	300ns			@EXPORT = qw(_IOFBF _IOLBF _IONBF);
13
14	1	900ns			@EXPORT_OK = qw(
15					pipe
16
17					autoflush
18					output_field_separator
19					output_record_separator
20					input_record_separator
21					input_line_number
22					format_page_number
23					format_lines_per_page
24					format_lines_left
25					format_name
26					format_top_name
27					format_line_break_characters
28					format_formfeed
29
30					print
31					printf
32					getline
33					getlines
34					);
35
36					#
37					# Everything we're willing to export, we must first import.
38					#
39	1	12µs	1	63µs	IO::Handle->import( grep { !defined(&$_) } @EXPORT, @EXPORT_OK ); # spent 63µs making 1 call to Exporter::import
40
41					#
42					# Some people call "FileHandle::function", so all the functions
43					# that were in the old FileHandle class must be imported, too.
44					#
45					{
46	3	184µs	2	13µs	# spent 9µs (4+4) within FileHandle::BEGIN@46 which was called: # once (4µs+4µs) by IPC::Cmd::BEGIN@5 at line 46 no strict 'refs'; # spent 9µs making 1 call to FileHandle::BEGIN@46 # spent 4µs making 1 call to strict::unimport
47
48	1	2µs			my %import = (
49					'IO::Handle' =>
50					[qw(DESTROY new_from_fd fdopen close fileno getc ungetc gets
51					eof flush error clearerr setbuf setvbuf _open_mode_string)],
52					'IO::Seekable' =>
53					[qw(seek tell getpos setpos)],
54					'IO::File' =>
55					[qw(new new_tmpfile open)]
56					);
57	1	2µs			for my $pkg (keys %import) {
58	3	1µs			for my $func (@{$import{$pkg}}) {
59					my $c = *{"${pkg}::$func"}{CODE}
60	22	11µs			or die "${pkg}::$func missing";
61	22	13µs			*$func = $c;
62					}
63					}
64					}
65
66					#
67					# Specialized importer for Fcntl magic.
68					#
69					# spent 198µs (9+189) within FileHandle::import which was called: # once (9µs+189µs) by IPC::Cmd::BEGIN@5 at line 36 of IPC/Cmd.pm sub import {
70	1	200ns			my $pkg = shift;
71	1	1µs	1	6µs	my $callpkg = caller; # spent 6µs making 1 call to Contextual::Return::__ANON__[Contextual/Return.pm:30]
72	1	200ns			require Exporter;
73	1	1µs	1	10µs	Exporter::export($pkg, $callpkg, @_); # spent 10µs making 1 call to Exporter::export
74
75					#
76					# If the Fcntl extension is available,
77					# export its constants.
78					#
79	1	2µs			eval {
80	1	300ns			require Fcntl;
81	1	700ns	1	5µs	Exporter::export('Fcntl', $callpkg); # spent 5µs making 1 call to Exporter::export
82					};
83					}
84
85					################################################
86					# This is the only exported function we define;
87					# the rest come from other classes.
88					#
89
90					sub pipe {
91					my $r = IO::Handle->new;
92					my $w = IO::Handle->new;
93					CORE::pipe($r, $w) or return undef;
94					($r, $w);
95					}
96
97					# Rebless standard file handles
98	1	400ns			bless STDIN{IO}, "FileHandle" if ref STDIN{IO} eq "IO::Handle";
99	1	100ns			bless STDOUT{IO}, "FileHandle" if ref STDOUT{IO} eq "IO::Handle";
100	1	200ns			bless STDERR{IO}, "FileHandle" if ref STDERR{IO} eq "IO::Handle";
101
102	1	11µs			1;
103
104					__END__