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ef2bb61018
* 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
117 lines
3.6 KiB
Ruby
117 lines
3.6 KiB
Ruby
require_relative './helper'
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return if not DidYouMean::TestHelper.ractor_compatible?
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class RactorCompatibilityTest < Test::Unit::TestCase
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def test_class_name_suggestion_works_in_ractor
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assert_ractor(<<~CODE, require_relative: "helper")
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class ::Book; end
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include DidYouMean::TestHelper
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error = Ractor.new {
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begin
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Boook
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rescue NameError => e
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e.corrections # It is important to call the #corrections method within Ractor.
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e
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end
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}.value
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assert_correction "Book", error.corrections
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CODE
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end
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def test_key_name_suggestion_works_in_ractor
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assert_ractor(<<~CODE, require_relative: "helper")
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include DidYouMean::TestHelper
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error = Ractor.new {
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begin
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hash = { "foo" => 1, bar: 2 }
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hash.fetch(:bax)
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rescue KeyError => e
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e.corrections # It is important to call the #corrections method within Ractor.
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e
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end
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}.value
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assert_correction ":bar", error.corrections
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assert_match "Did you mean? :bar", get_message(error)
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CODE
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end
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def test_method_name_suggestion_works_in_ractor
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assert_ractor(<<~CODE, require_relative: "helper")
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include DidYouMean::TestHelper
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error = Ractor.new {
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begin
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self.to__s
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rescue NoMethodError => e
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e.corrections # It is important to call the #corrections method within Ractor.
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e
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end
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}.value
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assert_correction :to_s, error.corrections
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assert_match "Did you mean? to_s", get_message(error)
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CODE
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end
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if defined?(::NoMatchingPatternKeyError)
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def test_pattern_key_name_suggestion_works_in_ractor
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assert_ractor(<<~CODE, require_relative: "helper")
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include DidYouMean::TestHelper
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error = Ractor.new {
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begin
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eval(<<~RUBY, binding, __FILE__, __LINE__)
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hash = {foo: 1, bar: 2, baz: 3}
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hash => {fooo:}
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fooo = 1 # suppress "unused variable: fooo" warning
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RUBY
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rescue NoMatchingPatternKeyError => e
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e.corrections # It is important to call the #corrections method within Ractor.
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e
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end
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}.value
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assert_correction ":foo", error.corrections
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assert_match "Did you mean? :foo", get_message(error)
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CODE
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end
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end
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def test_can_raise_other_name_error_in_ractor
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assert_ractor(<<~CODE, require_relative: "helper")
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class FirstNameError < NameError; end
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include DidYouMean::TestHelper
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error = Ractor.new {
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begin
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raise FirstNameError, "Other name error"
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rescue FirstNameError => e
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e.corrections # It is important to call the #corrections method within Ractor.
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e
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end
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}.value
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assert_not_match(/Did you mean\?/, error.message)
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CODE
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end
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def test_variable_name_suggestion_works_in_ractor
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assert_ractor(<<~CODE, require_relative: "helper")
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include DidYouMean::TestHelper
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error = Ractor.new {
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in_ractor = in_ractor = 1
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begin
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in_reactor
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rescue NameError => e
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e.corrections # It is important to call the #corrections method within Ractor.
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e
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end
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}.value
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assert_correction :in_ractor, error.corrections
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assert_match "Did you mean? in_ractor", get_message(error)
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CODE
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end
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end
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