How write a synchronized class

[Guillaume dorchies]

Hello

How do to write a synchronized class like in java for Ruby

I try with a Mutex but if a method call another method of the same
instance I obtain a Deadlock.


Thanks
Guillaume

 

[Tim Pease]

Hello

How do to write a synchronized class like in java for Ruby

I try with a Mutex but if a method call another method of the same
instance I obtain a Deadlock.

I wrote a reentrant mutex class at one point in time ...

http://gist.github.com/108117

Give it a shot and see if it fixes your deadlock issue.

Blessings,
TwP

 

[Guillaume dorchies]

Thank you It's exactly that I need

 

[Robert Klemme]

I wrote a reentrant mutex class at one point in time ...

http://gist.github.com/108117

Give it a shot and see if it fixes your deadlock issue.

Sorry, but you could have saved yourself the effort because it's part
of the standard library:

17:45:59 $ ruby19 -r monitor -e 'm=Monitor.new;m.synchronize {
m.synchronize { p 1 } }'
1
17:46:05 $ ruby19 -r thread -e 'm=Mutex.new;m.synchronize {
m.synchronize { p 1 } }'
<internalrelude>:6:in `lock': deadlock; recursive locking (ThreadError)
from <internalrelude>:6:in `synchronize'
from -e:1:in `block in <main>'
from <internalrelude>:8:in `synchronize'
from -e:1:in `<main>'
17:46:17 $ ruby19 -r monitor -e 'm=Monitor.new;m.synchronize {
m.synchronize { p 1 } }'
1
17:46:23 $

Kind regards

robert