set semaphore limit 256

heyinc · Aug 4, 2023 · 4fde394 · 4fde394
1 parent 87e0d5d
commit 4fde394
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/lib/execjs/pcruntime/context_process_runtime.rb b/lib/execjs/pcruntime/context_process_runtime.rb
@@ -211,7 +211,9 @@ def initialize(name, command, runner_path = File.expand_path('runner.js', __dir_
         @runner_path = runner_path
         @binary = nil
         @deprecated = deprecated
-        @semaphore = Semaphore.new 100
+        # macOS limits the number of file descriptors 256,
+        # so, set semaphore limit half of it
+        @semaphore = Semaphore.new 128
       end
 
       # implementation of ExecJS::Runtime#available?