Comments (5)
I think the best way is something like that
- we should define a macro like
def atomic_attribute(name)
# generates synchronized getter and setter
end
this macro is different form MRI, JRuby (where we can use your code) and Rubinius
- in our classes
class XXX
atomic_attribute :mutex
def initialize
self.mutex = Mutex.new
end
end
from concurrent-ruby.
Wouldn't there be a problem that all the atomic_attribute
s would share a single lock?
from concurrent-ruby.
The lock will be per-instance and usually we have only few atomic_attr, everything else is guarded by the ruby lock.
My idea is only to take your code and encapsulate it into an handy higher-level idea like the atomic_attr
from concurrent-ruby.
Lets call it volatile_attr
since this use-case does not involve CAS operations. Anyway I am not sure about this, we do not have any object using multiple locks in concurrent-ruby
, so we do not need volatile_attr
at this point. As a user I would also expect from volatile_attr
that it won't share a single lock (even though it is per instance), it may lead to unexpected deadlocks. I think adding volatile_attr
(or atomic_attr
) is another issue and without the JRuby support it would be more costly than just JRuby.reference0(self).synchronized { yield }
.
from concurrent-ruby.
will be addressed in #242
from concurrent-ruby.
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from concurrent-ruby.