1Crypt::Random::Source::UBsaesre:C:oHnatnrdilbeu(t3epdmC)Preyrplt:D:oRcaunmdeonmt:a:tSioounrce::Base::Handle(3pm)
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3
4

NAME

6       Crypt::Random::Source::Base::Handle - IO::Handle based random data
7       sources
8

VERSION

10       version 0.14
11

SYNOPSIS

13           use Moo;
14           extends qw(Crypt::Random::Source::Base::Handle);
15
16           sub open_handle {
17               # invoked as needed
18           }
19
20
21           # this class can also be used directly
22           Crypt::Random::Source::Base::Handle->new( handle => $file_handle );
23
24
25           # it supports some standard methods:
26
27           $p->blocking(0);
28
29           $p->read( my $buf, $n ); # no error handling here
30

DESCRIPTION

32       This is a concrete base class for all IO::Handle based random data
33       sources.
34
35       It implements error handling
36

ATTRIBUTES

38   handle
39       An IO::Handle or file handle to read from.
40
41   blocking
42       This is actually handled by "handle", and is documented in IO::Handle.
43
44   allow_under_read
45       Whether or not under reading is considered an error.
46
47       Defaults to false.
48
49   reread_attempts
50       The number of attempts to make at rereading if the handle did not
51       provide enough bytes on the first attempt.
52
53       Defaults to 1.
54
55       Only used if "allow_under_read" is enabled.
56

METHODS

58   get
59       See "get" in Crypt::Random::Source::Base.
60
61       When "blocking" or "allow_under_read" are set to a true value this
62       method may return fewer bytes than requested.
63
64   read
65       This delegates directly to "handle".
66
67       It DOES NOT provide the same validation as "get" would have, so no
68       checking for underreads is done.
69
70   close
71       Close the handle and clear it.
72
73   _read
74       "$self->handle->read" but with additional error checking and different
75       calling conventions.
76
77   _read_too_short
78       Called by "_read" when not enough data was read from the handle.
79       Normally it will either die with an error or attempt to reread. When
80       "allow_under_read" is true it will just return the partial buffer.
81
82   open_handle
83       Abstract method, should return an IO::Handle to use.
84

SUPPORT

86       Bugs may be submitted through the RT bug tracker
87       <https://rt.cpan.org/Public/Dist/Display.html?Name=Crypt-Random-Source>
88       (or bug-Crypt-Random-Source@rt.cpan.org <mailto:bug-Crypt-Random-
89       Source@rt.cpan.org>).
90

AUTHOR

92       XXXX XXX'XX (Yuval Kogman) <nothingmuch@woobling.org>
93

95       This software is copyright (c) 2008 by Yuval Kogman.
96
97       This is free software; you can redistribute it and/or modify it under
98       the same terms as the Perl 5 programming language system itself.
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102perl v5.30.1                      2020-C0r1y-p2t9::Random::Source::Base::Handle(3pm)
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