Re: [GHC] #1048: Add forkIO that starts in 'block' mode

2008-07-14 Thread GHC
#1048: Add forkIO that starts in 'block' mode
-+--
 Reporter:  ChrisKuklewicz   |  Owner:  simonmar   
 Type:  feature request  | Status:  closed 
 Priority:  normal   |  Milestone:  6.10 branch
Component:  libraries/base   |Version:  6.6
 Severity:  normal   | Resolution:  fixed  
 Keywords:  concurrency  | Difficulty:  Easy (1 hr)
 Testcase:   |   Architecture:  Multiple   
   Os:  Multiple |  
-+--
Changes (by simonmar):

  * status:  new = closed
  * resolution:  = fixed

Comment:

 Finished:
 {{{
 Wed Jul  9 06:55:58 PDT 2008  Simon Marlow [EMAIL PROTECTED]
   * forkOS: start the new thread in blocked mode iff the parent was
 (#1048)
   This matches the behaviour of forkIO
 }}}

-- 
Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1048#comment:5
GHC http://www.haskell.org/ghc/
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Re: [GHC] #1048: Add forkIO that starts in 'block' mode

2007-12-04 Thread GHC
#1048: Add forkIO that starts in 'block' mode
-+--
 Reporter:  ChrisKuklewicz   |  Owner:  simonmar   
 Type:  feature request  | Status:  new
 Priority:  normal   |  Milestone:  6.10 branch
Component:  libraries/base   |Version:  6.6
 Severity:  normal   | Resolution: 
 Keywords:  concurrency  | Difficulty:  Easy (1 hr)
 Testcase:   |   Architecture:  Multiple   
   Os:  Multiple |  
-+--
Comment (by simonmar):

 Partially done:

 {{{
 Tue Dec  4 03:09:47 PST 2007  Simon Marlow [EMAIL PROTECTED]
   * forkIO starts the new thread blocked if the parent is blocked (#1048)
 }}}

 I needed to fix various Ctrl-C problems in 6.8.1, and this seemed the
 least invasive way to do it.

 forkOS is not done, so leaving the ticket open for now.

-- 
Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1048#comment:4
GHC http://www.haskell.org/ghc/
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Re: [GHC] #1048: Add forkIO that starts in 'block' mode

2007-11-12 Thread GHC
#1048: Add forkIO that starts in 'block' mode
-+--
 Reporter:  ChrisKuklewicz   |  Owner: 
 Type:  feature request  | Status:  new
 Priority:  normal   |  Milestone:  6.10 branch
Component:  libraries/base   |Version:  6.6
 Severity:  normal   | Resolution: 
 Keywords:  concurrency  | Difficulty:  Easy (1 hr)
 Testcase:   |   Architecture:  Multiple   
   Os:  Multiple |  
-+--
Changes (by simonmar):

  * milestone:  6.8 branch = 6.10 branch

-- 
Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1048#comment:2
GHC http://www.haskell.org/ghc/
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Re: [GHC] #1048: Add forkIO that starts in 'block' mode

2007-11-12 Thread GHC
#1048: Add forkIO that starts in 'block' mode
-+--
 Reporter:  ChrisKuklewicz   |  Owner:  simonmar   
 Type:  feature request  | Status:  new
 Priority:  normal   |  Milestone:  6.10 branch
Component:  libraries/base   |Version:  6.6
 Severity:  normal   | Resolution: 
 Keywords:  concurrency  | Difficulty:  Easy (1 hr)
 Testcase:   |   Architecture:  Multiple   
   Os:  Multiple |  
-+--
Changes (by simonmar):

  * owner:  = simonmar

-- 
Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1048#comment:3
GHC http://www.haskell.org/ghc/
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Re: [GHC] #1048: Add forkIO that starts in 'block' mode

2007-01-26 Thread GHC
#1048: Add forkIO that starts in 'block' mode
-+--
 Reporter:  ChrisKuklewicz   |  Owner: 
 Type:  feature request  | Status:  new
 Priority:  normal   |  Milestone:  6.8
Component:  libraries/base   |Version:  6.6
 Severity:  normal   | Resolution: 
 Keywords:  concurrency  | Difficulty:  Easy (1 hr)
 Testcase:   |   Architecture:  Multiple   
   Os:  Multiple |  
-+--
Changes (by igloo):

  * milestone:  = 6.8

-- 
Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1048
GHC http://www.haskell.org/ghc/
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[GHC] #1048: Add forkIO that starts in 'block' mode

2006-12-13 Thread GHC
#1048: Add forkIO that starts in 'block' mode
+---
Reporter:  ChrisKuklewicz   |   Owner: 
Type:  feature request  |  Status:  new
Priority:  normal   |   Milestone: 
   Component:  libraries/base   | Version:  6.6
Severity:  normal   |Keywords:  concurrency
  Difficulty:  Easy (1 hr)  |Testcase: 
Architecture:  Multiple |  Os:  Multiple   
+---
The current forkIO starts in 'unblock' mode and the spawned thread can
 receive asynchronous exceptions (and die) before the passed (IO ()) action
 can start to run.

 Even if the user tried (forkIO (block io)) the new thread can be killed
 before entering the scope of block.

 Proposal: Add forkBlockedIO that spawns the new thread in a 'block' state.
 Alternative: Add forkInheritIO that spawns the new thread in the same
 block or unblock state as the parent thread is at the forkInheritIO call.
 Thus (forkBlockedIO = block . forkInheritIO) and (forkIO = unblock .
 forkInheritIO).

 Work around: At the moment a fresh MVar can immediately be used by the
 parent to wait until the child has signaled that it is executing withing
 the scope of the block (or exception handler, etc).

 This ought to also be extended to forkBlockedOS or forkInheritOS.

-- 
Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1048
GHC http://www.haskell.org/ghc/
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