lib/fiddle.rb in fiddle-1.1.2 vs lib/fiddle.rb in fiddle-1.1.3

@@ -1,46 +1,77 @@
 # frozen_string_literal: true
 
-require 'fiddle.so'
+if RUBY_ENGINE == 'ruby'
+  require 'fiddle.so'
+else
+  require 'fiddle/ffi_backend'
+end
 require 'fiddle/closure'
 require 'fiddle/function'
 require 'fiddle/version'
 
 module Fiddle
   if WINDOWS
     # Returns the last win32 +Error+ of the current executing +Thread+ or nil
     # if none
     def self.win32_last_error
-      Thread.current[:__FIDDLE_WIN32_LAST_ERROR__]
+      if RUBY_ENGINE == 'jruby'
+        errno = FFI.errno
+        errno == 0 ? nil : errno
+      else
+        Thread.current[:__FIDDLE_WIN32_LAST_ERROR__]
+      end
     end
 
     # Sets the last win32 +Error+ of the current executing +Thread+ to +error+
     def self.win32_last_error= error
-      Thread.current[:__FIDDLE_WIN32_LAST_ERROR__] = error
+      if RUBY_ENGINE == 'jruby'
+        FFI.errno = error || 0
+      else
+        Thread.current[:__FIDDLE_WIN32_LAST_ERROR__] = error
+      end
     end
 
     # Returns the last win32 socket +Error+ of the current executing
     # +Thread+ or nil if none
     def self.win32_last_socket_error
-      Thread.current[:__FIDDLE_WIN32_LAST_SOCKET_ERROR__]
+      if RUBY_ENGINE == 'jruby'
+        errno = FFI.errno
+        errno == 0 ? nil : errno
+      else
+        Thread.current[:__FIDDLE_WIN32_LAST_SOCKET_ERROR__]
+      end
     end
 
     # Sets the last win32 socket +Error+ of the current executing
     # +Thread+ to +error+
     def self.win32_last_socket_error= error
-      Thread.current[:__FIDDLE_WIN32_LAST_SOCKET_ERROR__] = error
+      if RUBY_ENGINE == 'jruby'
+        FFI.errno = error || 0
+      else
+        Thread.current[:__FIDDLE_WIN32_LAST_SOCKET_ERROR__] = error
+      end
     end
   end
 
   # Returns the last +Error+ of the current executing +Thread+ or nil if none
   def self.last_error
-    Thread.current[:__FIDDLE_LAST_ERROR__]
+    if RUBY_ENGINE == 'jruby'
+      errno = FFI.errno
+      errno == 0 ? nil : errno
+    else
+      Thread.current[:__FIDDLE_LAST_ERROR__]
+    end
   end
 
   # Sets the last +Error+ of the current executing +Thread+ to +error+
   def self.last_error= error
-    Thread.current[:__DL2_LAST_ERROR__] = error
-    Thread.current[:__FIDDLE_LAST_ERROR__] = error
+    if RUBY_ENGINE == 'jruby'
+      FFI.errno = error || 0
+    else
+      Thread.current[:__DL2_LAST_ERROR__] = error
+      Thread.current[:__FIDDLE_LAST_ERROR__] = error
+    end
   end
 
   # call-seq: dlopen(library) => Fiddle::Handle
   #
   # Creates a new handler that opens +library+, and returns an instance of