1POSIX::AtFork(3)      User Contributed Perl Documentation     POSIX::AtFork(3)
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NAME

6       POSIX::AtFork - Hook registrations at fork(2)
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SYNOPSIS

9         # POSIX interface:
10         use POSIX::AtFork qw(:all);
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12         pthread_atfork(\&prepare, \&parent, \&child);
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14         # or per-hook interfaces:
15         POSIX::AtFork->add_to_prepare(\&prepare);
16         POSIX::AtFork->add_to_parent(\&parent);
17         POSIX::AtFork->add_to_child(\&child);
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19         # registered callbacks can be removed
20         POSIX::AtFork->delete_from_prepare(\&prepare);
21         POSIX::AtFork->delete_from_parent( \&parent);
22         POSIX::AtFork->delete_from_child(  \&child);
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DESCRIPTION

25       This module is an interface to pthread_atfork(3), which registeres
26       handlers called before and after fork(2).
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INTERFACE

29   pthread_atfork(\&prepare, \&parent, \&child)
30       Registeres hooks called before "fork()" (&prepare) and after (&parent
31       for the parent, &child for the child).
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33       All callbacks are called with the current opname, namely "fork",
34       "system", "backtick", and etc.
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36       This exportable function is an interface to pthread_atfork(3).
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38   POSIX::AtFork->add_to_prepare(\&hook)
39       The same as "pthread_atfork(\&hook, undef, undef)".
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41   POSIX::AtFork->add_to_parent(\&hook)
42       The same as "pthread_atfork(undef, \&hook, undef)".
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44   POSIX::Atfork->add_to_child(\&hook)
45       The same as "pthread_atfork(undef, undef, \&hook)".
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47   POSIX::AtFork->delete_from_prepare(\&hook)
48       Deletes &hook from the "prepare" hook list.
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50   POSIX::AtFork->delete_from_parent(\&hook)
51       Deletes &hook from the "parent" hook list.
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53   POSIX::AtFork->delete_from_child(\&hook)
54       Deletes &hook from the "child" hook list.
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SEE ALSO

57       pthread_atfork(3)
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59       fork(2)
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AUTHOR

62       Fuji, Goro (gfx)
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65       Copyright (C) 2010 by Fuji, Goro gfx <gfuji@cpan.org>.
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67       This library is free software; you can redistribute it and/or modify it
68       under the same terms as Perl itself,
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72perl v5.30.0                      2019-07-26                  POSIX::AtFork(3)
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