Reimplement Interruptible

.gitignore

@@ -14,5 +14,8 @@
 # Folder for Visual Studio Code
 /.vscode/
 
+# Files for RVM holdouts
+.ruby-gemset
+
 # misc
 .DS_Store

.rubocop.yml

@@ -4,7 +4,7 @@
 inherit_gem: { rubocop-rails-omakase: rubocop.yml }
 
 AllCops:
-  TargetRubyVersion: 3.0
+  TargetRubyVersion: 3.3
   Exclude:
     - "test/dummy/db/schema.rb"
     - "test/dummy/db/queue_schema.rb"

Gemfile.lock

@@ -54,13 +54,15 @@ GEM
     concurrent-ruby (1.3.4)
     connection_pool (2.4.1)
     crass (1.0.6)
+    date (3.4.1)
     debug (1.7.1)
       irb (>= 1.5.0)
       reline (>= 0.3.1)
     drb (2.2.1)
     erubi (1.13.0)
     et-orbi (1.2.11)
       tzinfo
+    fiddle (1.1.2)
     fugit (1.11.1)
       et-orbi (~> 1, >= 1.2.11)
       raabro (~> 1.4)
@@ -74,6 +76,7 @@ GEM
       reline (>= 0.4.2)
     json (2.8.2)
     language_server-protocol (3.17.0.3)
+    logger (1.6.0)
     loofah (2.23.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
@@ -90,12 +93,14 @@ GEM
       racc (~> 1.4)
     nokogiri (1.16.7-x86_64-linux)
       racc (~> 1.4)
+    ostruct (0.6.0)
     parallel (1.26.3)
     parser (3.3.6.0)
       ast (~> 2.4.1)
       racc
     pg (1.5.4)
-    psych (5.2.0)
+    psych (5.2.1)
+      date
       stringio
     puma (6.4.3)
       nio4r (~> 2.0)
@@ -175,16 +180,21 @@ GEM
 PLATFORMS
   arm64-darwin-22
   arm64-darwin-23
+  arm64-darwin-24
   x86_64-darwin-21
   x86_64-darwin-23
   x86_64-linux
 
 DEPENDENCIES
   debug
+  fiddle
+  logger
   mocha
   mysql2
+  ostruct
   pg
   puma
+  rdoc
   rubocop-rails-omakase
   solid_queue!
   sqlite3

lib/solid_queue/processes/interruptible.rb

@@ -7,31 +7,25 @@ def wake_up
     end
 
     private
-      SELF_PIPE_BLOCK_SIZE = 11
 
       def interrupt
-        self_pipe[:writer].write_nonblock(".")
-      rescue Errno::EAGAIN, Errno::EINTR
-        # Ignore writes that would block and retry
-        # if another signal arrived while writing
-        retry
+        queue << true
       end
 
       def interruptible_sleep(time)
-        if time > 0 && self_pipe[:reader].wait_readable(time)
-          loop { self_pipe[:reader].read_nonblock(SELF_PIPE_BLOCK_SIZE) }
-        end
-      rescue Errno::EAGAIN, Errno::EINTR
+        # Since this is invoked on the main thread, using some form of Async
+        # avoids a 35% slowdown (at least when running the test suite).
+        #
+        # Using Futures for architectural consistency with all the other Async in SolidQueue.
+        Concurrent::Promises.future(time) do |timeout|
+          if timeout > 0 && queue.pop(timeout:)
+            queue.clear # exiting the poll wait guarantees testing for SHUTDOWN before next poll
+          end
+        end.value
       end
 
-      # Self-pipe for signal-handling (http://cr.yp.to/docs/selfpipe.html)
-      def self_pipe
-        @self_pipe ||= create_self_pipe
-      end
-
-      def create_self_pipe
-        reader, writer = IO.pipe
-        { reader: reader, writer: writer }
+      def queue
+        @queue ||= Queue.new
       end
   end
 end

solid_queue.gemspec

@@ -44,4 +44,8 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "pg"
   spec.add_development_dependency "sqlite3"
   spec.add_development_dependency "rubocop-rails-omakase"
+  spec.add_development_dependency "ostruct"
+  spec.add_development_dependency "logger"
+  spec.add_development_dependency "fiddle"
+  spec.add_development_dependency "rdoc"
 end

test/dummy/config/initializers/enable_yjit.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+# Ideally, tests should be configured as close to production settings as
+# possible and YJIT is likely to be enabled. While it's highly unlikely
+# YJIT would cause issues, enabling it confirms this assertion.
+#
+# Configured via initializer to align with Rails 7.1 default in gemspec
+if defined?(RubyVM::YJIT.enable)
+  Rails.application.config.after_initialize do
+    RubyVM::YJIT.enable
+  end
+end

test/integration/concurrency_controls_test.rb

@@ -85,7 +85,7 @@ class ConcurrencyControlsTest < ActiveSupport::TestCase
   test "run several jobs over the same record sequentially, with some of them failing" do
     ("A".."F").each_with_index do |name, i|
       # A, C, E will fail, for i= 0, 2, 4
-      SequentialUpdateResultJob.perform_later(@result, name: name, pause: 0.2.seconds, exception: (RuntimeError if i.even?))
+      SequentialUpdateResultJob.perform_later(@result, name: name, pause: 0.2.seconds, exception: (ExpectedTestError if i.even?))
     end
 
     ("G".."K").each do |name|

test/integration/instrumentation_test.rb

@@ -162,7 +162,7 @@ class InstrumentationTest < ActiveSupport::TestCase
 
   test "errors when deregistering processes are included in deregister_process events" do
     previous_thread_report_on_exception, Thread.report_on_exception = Thread.report_on_exception, false
-    error = RuntimeError.new("everything is broken")
+    error = ExpectedTestError.new("everything is broken")
     SolidQueue::Process.any_instance.expects(:destroy!).raises(error).at_least_once
 
     events = subscribed("deregister_process.solid_queue") do
@@ -182,7 +182,7 @@ class InstrumentationTest < ActiveSupport::TestCase
   end
 
   test "retrying failed job emits retry event" do
-    RaisingJob.perform_later(RuntimeError, "A")
+    RaisingJob.perform_later(ExpectedTestError, "A")
     job = SolidQueue::Job.last
 
     worker = SolidQueue::Worker.new.tap(&:start)
@@ -198,7 +198,7 @@ class InstrumentationTest < ActiveSupport::TestCase
   end
 
   test "retrying failed jobs in bulk emits retry_all" do
-    3.times { RaisingJob.perform_later(RuntimeError, "A") }
+    3.times { RaisingJob.perform_later(ExpectedTestError, "A") }
     AddToBufferJob.perform_later("A")
 
     jobs = SolidQueue::Job.last(4)
@@ -392,7 +392,7 @@ class InstrumentationTest < ActiveSupport::TestCase
   test "thread errors emit thread_error events" do
     previous_thread_report_on_exception, Thread.report_on_exception = Thread.report_on_exception, false
 
-    error = RuntimeError.new("everything is broken")
+    error = ExpectedTestError.new("everything is broken")
     SolidQueue::ClaimedExecution::Result.expects(:new).raises(error).at_least_once
 
     AddToBufferJob.perform_later "hey!"

test/integration/jobs_lifecycle_test.rb

@@ -4,11 +4,13 @@
 
 class JobsLifecycleTest < ActiveSupport::TestCase
   setup do
+    SolidQueue.on_thread_error = silent_on_thread_error_for([ ExpectedTestError, RaisingJob::DefaultError ])
     @worker = SolidQueue::Worker.new(queues: "background", threads: 3)
     @dispatcher = SolidQueue::Dispatcher.new(batch_size: 10, polling_interval: 0.2)
   end
 
   teardown do
+    SolidQueue.on_thread_error = @on_thread_error
     @worker.stop
     @dispatcher.stop
 
@@ -29,16 +31,16 @@ class JobsLifecycleTest < ActiveSupport::TestCase
   end
 
   test "enqueue and run jobs that fail without retries" do
-    RaisingJob.perform_later(RuntimeError, "A")
-    RaisingJob.perform_later(RuntimeError, "B")
+    RaisingJob.perform_later(ExpectedTestError, "A")
+    RaisingJob.perform_later(ExpectedTestError, "B")
     jobs = SolidQueue::Job.last(2)
 
     @dispatcher.start
     @worker.start
 
     wait_for_jobs_to_finish_for(3.seconds)
 
-    message = "raised RuntimeError for the 1st time"
+    message = "raised ExpectedTestError for the 1st time"
     assert_equal [ "A: #{message}", "B: #{message}" ], JobBuffer.values.sort
 
     assert_empty SolidQueue::Job.finished

test/integration/processes_lifecycle_test.rb

@@ -144,11 +144,11 @@ class ProcessesLifecycleTest < ActiveSupport::TestCase
   test "process some jobs that raise errors" do
     2.times { enqueue_store_result_job("no error", :background) }
     2.times { enqueue_store_result_job("no error", :default) }
-    error1 = enqueue_store_result_job("error", :background, exception: RuntimeError)
+    error1 = enqueue_store_result_job("error", :background, exception: ExpectedTestError)
     enqueue_store_result_job("no error", :background, pause: 0.03)
-    error2 = enqueue_store_result_job("error", :background, exception: RuntimeError, pause: 0.05)
+    error2 = enqueue_store_result_job("error", :background, exception: ExpectedTestError, pause: 0.05)
     2.times { enqueue_store_result_job("no error", :default, pause: 0.01) }
-    error3 = enqueue_store_result_job("error", :default, exception: RuntimeError)
+    error3 = enqueue_store_result_job("error", :default, exception: ExpectedTestError)
 
     wait_for_jobs_to_finish_for(2.second, except: [ error1, error2, error3 ])
 

test/models/solid_queue/failed_execution_test.rb

@@ -7,23 +7,25 @@ class SolidQueue::FailedExecutionTest < ActiveSupport::TestCase
   end
 
   test "run job that fails" do
-    RaisingJob.perform_later(RuntimeError, "A")
+    RaisingJob.perform_later(ExpectedTestError, "A")
     @worker.start
 
     assert_equal 1, SolidQueue::FailedExecution.count
     assert SolidQueue::Job.last.failed?
   end
 
   test "run job that fails with a SystemStackError (stack level too deep)" do
-    InfiniteRecursionJob.perform_later
-    @worker.start
+    silence_on_thread_error_for(SystemStackError) do
+      InfiniteRecursionJob.perform_later
+      @worker.start
 
-    assert_equal 1, SolidQueue::FailedExecution.count
-    assert SolidQueue::Job.last.failed?
+      assert_equal 1, SolidQueue::FailedExecution.count
+      assert SolidQueue::Job.last.failed?
+    end
   end
 
   test "retry failed job" do
-    RaisingJob.perform_later(RuntimeError, "A")
+    RaisingJob.perform_later(ExpectedTestError, "A")
     @worker.start
 
     assert_difference -> { SolidQueue::FailedExecution.count }, -1 do
@@ -34,7 +36,7 @@ class SolidQueue::FailedExecutionTest < ActiveSupport::TestCase
   end
 
   test "retry failed jobs in bulk" do
-    1.upto(5) { |i| RaisingJob.perform_later(RuntimeError, i) }
+    1.upto(5) { |i| RaisingJob.perform_later(ExpectedTestError, i) }
     1.upto(3) { |i| AddToBufferJob.perform_later(i) }
 
     @worker.start

test/test_helper.rb

@@ -24,11 +24,20 @@ def write(...)
 end
 
 Logger::LogDevice.prepend(BlockLogDeviceTimeoutExceptions)
+class ExpectedTestError < RuntimeError; end
+
 
 class ActiveSupport::TestCase
   include ProcessesTestHelper, JobsTestHelper
 
+  setup do
+    # Could be cleaner with one several minitest gems, but didn't want to add new dependency
+    @_on_thread_error = SolidQueue.on_thread_error
+    SolidQueue.on_thread_error = silent_on_thread_error_for(ExpectedTestError)
+  end
+
   teardown do
+    SolidQueue.on_thread_error = @_on_thread_error
     JobBuffer.clear
 
     if SolidQueue.supervisor_pidfile && File.exist?(SolidQueue.supervisor_pidfile)
@@ -69,4 +78,28 @@ def wait_while_with_timeout!(timeout, &block)
     def skip_active_record_query_cache(&block)
       SolidQueue::Record.uncached(&block)
     end
+
+    # Silences specified exceptions during the execution of a block
+    #
+    # @param [Exception, Array<Exception>] expected an Exception or an array of Exceptions to ignore
+    # @yield Executes the provided block with specified exception(s) silenced
+    def silence_on_thread_error_for(expected, &block)
+      SolidQueue.with(on_thread_error: silent_on_thread_error_for(expected)) do
+        block.call
+      end
+    end
+
+    # Does not call on_thread_error for expected exceptions
+    # @param [Exception, Array<Exception>] expected an Exception or an array of Exceptions to ignore
+    def silent_on_thread_error_for(expected)
+      current_proc = SolidQueue.on_thread_error
+
+      ->(exception) do
+        expected_exceptions = Array(expected)
+
+        unless expected_exceptions.any? { exception.instance_of?(_1) }
+          current_proc.call(exception)
+        end
+      end
+    end
 end

test/unit/worker_test.rb

@@ -28,14 +28,14 @@ class WorkerTest < ActiveSupport::TestCase
     original_on_thread_error, SolidQueue.on_thread_error = SolidQueue.on_thread_error, ->(error) { errors << error.message }
     previous_thread_report_on_exception, Thread.report_on_exception = Thread.report_on_exception, false
 
-    SolidQueue::ReadyExecution.expects(:claim).raises(RuntimeError.new("everything is broken")).at_least_once
+    SolidQueue::ReadyExecution.expects(:claim).raises(ExpectedTestError.new("everything is broken")).at_least_once
 
     AddToBufferJob.perform_later "hey!"
 
     worker = SolidQueue::Worker.new(queues: "background", threads: 3, polling_interval: 0.2).tap(&:start)
     sleep(1)
 
-    assert_raises RuntimeError do
+    assert_raises ExpectedTestError do
       worker.stop
     end
 
@@ -51,7 +51,7 @@ class WorkerTest < ActiveSupport::TestCase
     subscriber = ErrorBuffer.new
     Rails.error.subscribe(subscriber)
 
-    SolidQueue::ClaimedExecution::Result.expects(:new).raises(RuntimeError.new("everything is broken")).at_least_once
+    SolidQueue::ClaimedExecution::Result.expects(:new).raises(ExpectedTestError.new("everything is broken")).at_least_once
 
     AddToBufferJob.perform_later "hey!"
 
@@ -71,15 +71,15 @@ class WorkerTest < ActiveSupport::TestCase
     subscriber = ErrorBuffer.new
     Rails.error.subscribe(subscriber)
 
-    RaisingJob.perform_later(RuntimeError, "B")
+    RaisingJob.perform_later(ExpectedTestError, "B")
 
     @worker.start
 
     wait_for_jobs_to_finish_for(1.second)
     @worker.wake_up
 
     assert_equal 1, subscriber.errors.count
-    assert_equal "This is a RuntimeError exception", subscriber.messages.first
+    assert_equal "This is a ExpectedTestError exception", subscriber.messages.first
   ensure
     Rails.error.unsubscribe(subscriber) if Rails.error.respond_to?(:unsubscribe)
   end