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This reverts commit https://github.com/ruby/psych/commit/1a4d383efe0b.
https://github.com/ruby/psych/commit/2f51c02280
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https://github.com/ruby/psych/commit/1a4d383efe
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* Added `Ractor::Port`
* `Ractor::Port#receive` (support multi-threads)
* `Rcator::Port#close`
* `Ractor::Port#closed?`
* Added some methods
* `Ractor#join`
* `Ractor#value`
* `Ractor#monitor`
* `Ractor#unmonitor`
* Removed some methods
* `Ractor#take`
* `Ractor.yield`
* Change the spec
* `Racotr.select`
You can wait for multiple sequences of messages with `Ractor::Port`.
```ruby
ports = 3.times.map{ Ractor::Port.new }
ports.map.with_index do |port, ri|
Ractor.new port,ri do |port, ri|
3.times{|i| port << "r#{ri}-#{i}"}
end
end
p ports.each{|port| pp 3.times.map{port.receive}}
```
In this example, we use 3 ports, and 3 Ractors send messages to them respectively.
We can receive a series of messages from each port.
You can use `Ractor#value` to get the last value of a Ractor's block:
```ruby
result = Ractor.new do
heavy_task()
end.value
```
You can wait for the termination of a Ractor with `Ractor#join` like this:
```ruby
Ractor.new do
some_task()
end.join
```
`#value` and `#join` are similar to `Thread#value` and `Thread#join`.
To implement `#join`, `Ractor#monitor` (and `Ractor#unmonitor`) is introduced.
This commit changes `Ractor.select()` method.
It now only accepts ports or Ractors, and returns when a port receives a message or a Ractor terminates.
We removes `Ractor.yield` and `Ractor#take` because:
* `Ractor::Port` supports most of similar use cases in a simpler manner.
* Removing them significantly simplifies the code.
We also change the internal thread scheduler code (thread_pthread.c):
* During barrier synchronization, we keep the `ractor_sched` lock to avoid deadlocks.
This lock is released by `rb_ractor_sched_barrier_end()`
which is called at the end of operations that require the barrier.
* fix potential deadlock issues by checking interrupts just before setting UBF.
https://bugs.ruby-lang.org/issues/21262
Notes:
Merged: https://github.com/ruby/ruby/pull/13445
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In future versions of Psych, the `load` method will be mostly the same
as the `safe_load` method. In other words, the `load` method won't
allow arbitrary object deserialization (which can be used to escalate to
an RCE). People that need to load *trusted* documents can use the
`unsafe_load` method.
This commit introduces the `unsafe_load` method so that people can
incrementally upgrade. For example, if they try to upgrade to 4.0.0 and
something breaks, they can downgrade, audit callsites, change to
`safe_load` or `unsafe_load` as required, and then upgrade to 4.0.0
smoothly.
https://github.com/ruby/psych/commit/cb50aa8d3f
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https://github.com/ruby/psych/commit/cc5f957327
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Because ruby/psych still uses minitest. minitest didn't support
assert_ractor provided by test suite of ruby/ruby repo.
https://github.com/ruby/psych/commit/7da26358f1
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Using `compare_by_identity` gives a 4x performance boost on cache hits.
Benchmark in https://github.com/JuanitoFatas/fast-ruby/issues/189
Notes:
Merged: https://github.com/ruby/ruby/pull/3953
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Config is Ractor-local.
Benchmarking reveals that using `Ractor.local_storage` for storing cache
is similar to accessing a constant (~15% slower).
Notes:
Merged: https://github.com/ruby/ruby/pull/3953
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