Add bin and edit workflow

2026-09-16 13:11:16 -06:00
parent c8ac4fcae5
commit 4cee170d66
17576 changed files with 895740 additions and 2 deletions
@@ -0,0 +1,52 @@
+require 'concurrent/utility/engine'
+require 'concurrent/thread_safe/util'
+
+module Concurrent
+
+  # @!macro concurrent_hash
+  #
+  #   A thread-safe subclass of Hash. This version locks against the object
+  #   itself for every method call, ensuring only one thread can be reading
+  #   or writing at a time. This includes iteration methods like `#each`,
+  #   which takes the lock repeatedly when reading an item.
+  #
+  #   @see http://ruby-doc.org/core/Hash.html Ruby standard library `Hash`
+
+  # @!macro internal_implementation_note
+  HashImplementation = case
+                       when Concurrent.on_cruby?
+                         # Hash is not fully thread-safe on CRuby, see
+                         # https://bugs.ruby-lang.org/issues/19237
+                         # https://github.com/ruby/ruby/commit/ffd52412ab
+                         # https://github.com/ruby-concurrency/concurrent-ruby/issues/929
+                         # So we will need to add synchronization here (similar to Concurrent::Map).
+                         ::Hash
+
+                       when Concurrent.on_jruby?
+                         require 'jruby/synchronized'
+
+                         class JRubyHash < ::Hash
+                           include JRuby::Synchronized
+                         end
+                         JRubyHash
+
+                       when Concurrent.on_truffleruby?
+                         require 'concurrent/thread_safe/util/data_structures'
+
+                         class TruffleRubyHash < ::Hash
+                         end
+
+                         ThreadSafe::Util.make_synchronized_on_truffleruby TruffleRubyHash
+                         TruffleRubyHash
+
+                       else
+                         warn 'Possibly unsupported Ruby implementation'
+                         ::Hash
+                       end
+  private_constant :HashImplementation
+
+  # @!macro concurrent_hash
+  class Hash < HashImplementation
+  end
+
+end