Allow specifying name for fixed thread pool

Author: keelerm84

lib/ldclient-rb/events.rb

@@ -243,10 +243,10 @@ def initialize(inbox, sdk_key, config, diagnostic_accumulator, event_sender)
       @events_in_last_batch = 0
 
       outbox = EventBuffer.new(config.capacity, config.logger)
-      flush_workers = NonBlockingThreadPool.new(MAX_FLUSH_WORKERS)
+      flush_workers = NonBlockingThreadPool.new(MAX_FLUSH_WORKERS, 'EventDispatcher/FlushWorkers')
 
       if !@diagnostic_accumulator.nil?
-        diagnostic_event_workers = NonBlockingThreadPool.new(1)
+        diagnostic_event_workers = NonBlockingThreadPool.new(1, 'EventDispatcher/DiagnosticEventWorkers')
         init_event = @diagnostic_accumulator.create_init_event(config)
         send_diagnostic_event(init_event, diagnostic_event_workers)
       else

lib/ldclient-rb/non_blocking_thread_pool.rb

@@ -8,9 +8,9 @@ module LaunchDarkly
   # than blocking. Also provides a way to wait for all jobs to finish without shutting down.
   # @private
   class NonBlockingThreadPool
-    def initialize(capacity)
+    def initialize(capacity, name = 'LD/NonBlockingThreadPool')
       @capacity = capacity
-      @pool = Concurrent::FixedThreadPool.new(capacity, name: "LD/NonBlockingThreadPool")
+      @pool = Concurrent::FixedThreadPool.new(capacity, name: name)
       @semaphore = Concurrent::Semaphore.new(capacity)
     end