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Comparing Proc-FastSpawn/FastSpawn.pm (file contents):
Revision 1.3 by root, Tue Apr 2 03:53:50 2013 UTC vs.
Revision 1.4 by root, Thu Apr 4 08:00:38 2013 UTC

… …
109decided on a per file descriptor basis. This module does nothing to any 109decided on a per file descriptor basis. This module does nothing to any
110preexisting handles, but with this call, you can change the state of a 110preexisting handles, but with this call, you can change the state of a
111single file descriptor to either be inherited (C<$on> is true or missing) 111single file descriptor to either be inherited (C<$on> is true or missing)
112or not C<$on> is false). 112or not C<$on> is false).
113 113
114Free portability pro-tip: it seems native win32 perls ignore $^F and set
115all file handles to be inherited by default - but this fucntino can switch
116it off.
117
114=back 118=back
115 119
116=head1 PORTABILITY NOTES 120=head1 PORTABILITY NOTES
117 121
118On POSIX systems, this module currently calls vfork+exec, spawn, or 122On POSIX systems, this module currently calls vfork+exec, spawn, or

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