14 warn "Warning, threads::shared has already been loaded. ".
15 "To enable shared variables for these modules 'use threads' ".
16 "must be called before any of those modules are loaded\n"
17 if($threads::shared::threads_shared);
23 our @ISA = qw(Exporter DynaLoader);
25 our %EXPORT_TAGS = ( all => [qw()]);
27 our @EXPORT_OK = ( @{ $EXPORT_TAGS{'all'} } );
32 our $VERSION = '0.05';
36 return 1 if($_[0]->tid() == $_[1]->tid());
40 $threads::threads = 1;
42 bootstrap threads $VERSION;
44 # why document 'new' then use 'create' in the tests!
47 # Preloaded methods go here.
54 threads - Perl extension allowing use of interpreter based threads from perl
61 print "Thread started\n";
64 my $thread = threads->new("start_thread","argument");
66 $thread->new(sub { print "I am a thread"},"argument");
72 $thread = threads->self();
81 Perl 5.6 introduced something called interpreter threads. Interpreter
82 threads are different from "5005threads" (the thread model of Perl
83 5.005) by creating a new perl interpreter per thread and not sharing
84 any data or state between threads.
86 Prior to perl 5.8 this has only been available to people embedding
87 perl and for emulating fork() on windows.
89 The threads API is loosely based on the old Thread.pm API. It is very
90 important to note that variables are not shared between threads, all
91 variables are per default thread local. To use shared variables one
92 must use threads::shared.
94 It is also important to note that you preferably enable threads by
95 doing C<use threads> as early as possible and that it is not possible
96 to enable threading inside an eval ""; In particular, if you are
97 intending to share variables with threads::shared, you must
98 C<use threads> before you C<use threads::shared> and threads will emit
99 a warning if you do it the other way around.
103 =item $thread = new(function, LIST)
105 This will create a new thread with the entry point function and give
106 it LIST as parameters. It will return the corresponding threads
109 create() is an alias to new.
113 This will wait for the corresponding thread to join. When it finishes
114 join will return the return values of the entry point function. If a
115 thread has been detached, join will return without wait.
117 =item $thread->detach
119 Will throw away the return value from the thread and make it
124 This will return the object for the current thread.
128 This will return the id of the thread. threads->self->tid() is a
129 quick way to get current thread id.
138 =item Fix so the return value is returned when you join.
142 =item Fix memory leaks!
146 =head1 AUTHOR and COPYRIGHT
148 Arthur Bergman E<lt>arthur at contiller.seE<gt>
150 threads is released under the same license as Perl.
154 Richard Soderberg E<lt>rs at crystalflame.netE<gt>
155 Helping me out tons, trying to find reasons for races and other weird bugs!
157 Simon Cozens E<lt>simon at brecon.co.ukE<gt>
158 Being there to answer zillions of annoying questions
160 Rocco Caputo E<lt>troc at netrus.netE<gt>
162 Vipul Ved Prakash E<lt>mail at vipul.netE<gt>
163 Helping with debugging.
165 please join perl-ithreads@perl.org for more information
171 =item creating a thread from within a thread is unsafe under win32
173 =item PERL_OLD_SIGNALS are not threadsafe, will not be.
180 L<perl>, L<threads::shared>, L<perlcall>, L<perlembed>, L<perlguts>