[#42344] [ruby-trunk - Feature #5964][Open] Make Symbols an Alternate Syntax for Strings — Tom Wardrop <tom@...>

23 messages 2012/02/03

[#42443] [ruby-trunk - Bug #5985][Open] miniruby skews "make benchmark" results — Eric Wong <normalperson@...>

21 messages 2012/02/08

[#42444] [ruby-trunk - Bug #5986][Open] Segmentation Fault — Luis Matta <levmatta@...>

16 messages 2012/02/08

[#42471] [ruby-trunk - Feature #5995][Open] calling io_advise_internal() in read_all() — Masaki Matsushita <glass.saga@...>

20 messages 2012/02/10

[#42560] [ruby-trunk - Bug #6011][Open] ruby-1.9.3-p0/lib/webrick/utils.rb:184: [BUG] Segmentation fault — Vit Ondruch <v.ondruch@...>

12 messages 2012/02/13

[#42579] [ruby-trunk - Bug #6012][Open] Proc#source_location also return the column — Roger Pack <rogerpack2005@...>

14 messages 2012/02/14

[#42685] [ruby-trunk - Bug #6036][Open] Test failures in Fedora Rawhide/17 — Bohuslav Kabrda <bkabrda@...>

14 messages 2012/02/16

[#42697] [ruby-trunk - Bug #6040][Open] Transcoding test failure: Big5 to UTF8 not defined (MinGW) — Luis Lavena <luislavena@...>

10 messages 2012/02/16

[#42813] [ruby-trunk - Feature #6065][Open] Allow Bignum marshalling/unmarshalling from C API — Martin Bosslet <Martin.Bosslet@...>

22 messages 2012/02/23

[#42815] [ruby-trunk - Bug #6066][Open] Fix "control may reach end of non-void function" warnings for clang — Eric Hodel <drbrain@...7.net>

15 messages 2012/02/23

[#42857] [ruby-trunk - Feature #6074][Open] Allow alias arguments to have a comma — Thomas Sawyer <transfire@...>

20 messages 2012/02/24

[#42891] [ruby-trunk - Feature #6083][Open] Hide a Bignum definition — Koichi Sasada <redmine@...>

23 messages 2012/02/25

[#42906] [ruby-trunk - Bug #6085][Open] Treatment of Wrong Number of Arguments — Marc-Andre Lafortune <ruby-core@...>

14 messages 2012/02/25

[#42949] [ruby-trunk - Bug #6089][Open] Test suite fails with OpenSSL 1.0.1 — Vit Ondruch <v.ondruch@...>

13 messages 2012/02/26

[ruby-core:42309] [ruby-trunk - Feature #5788] Thread#at_exit

From: Masaki Matsushita <glass.saga@...>
Date: 2012-02-01 13:58:23 UTC
List: ruby-core #42309
Issue #5788 has been updated by Masaki Matsushita.

File patch3.diff added

=begin
I modified the patch.
* use mutex on define_at_exit to avoid race.
* mark th->at_exit and th->at_exit_lock in rb_thread_mark().
=end

----------------------------------------
Feature #5788: Thread#at_exit
https://bugs.ruby-lang.org/issues/5788

Author: Masaki Matsushita
Status: Feedback
Priority: Normal
Assignee: 
Category: core
Target version: 


=begin
I propose a new method Thread#at_exit.
It is to register a block which will be called when the thread ends.

 p Thread.main #=> #<Thread:0x007f828fa97fe0 run>
 p t = Thread.new{ # do something } #=> #<Thread:0x007f828fc9e500 run>
 t.at_exit{ p Thread.current }
 t.join #=> #<Thread:0x007f828fc9e500 run>
 
Thread.main.at_exit is equal to Kernel.at_exit.

I think this method is useful for waiting plural running threads end.

Without Thread#at_exit:
 t1 = Thread.new{ sleep 1 }
 t2 = Thread.new{ sleep 2 }
 
 [t1, t2].each do |t|
   Thread.new do
     t.join
     puts "Thread ended!"
   end
 end

 [t1, t2].each(&:join)

To handle threads' end immediately, the same number of threads as ones to wait is needed.

For example, Ruby's standard library thwait.rb does so.

With Thread#at_exit:
 t1 = Thread.new{ sleep 1 }
 t2 = Thread.new{ sleep 2 }

 [t1, t2].each do |t|
   # It runs when interpreter ends.
   t.at_exit{ puts "Thread ended!" }
 end

New threads are not necessary.

I made a patch.
Patched ruby passes test-all.
=end



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