Initial checkin of gRPC to third_party/

third_party/grpc/src/ruby/lib/grpc/core/time_consts.rb

Index: third_party/grpc/src/ruby/lib/grpc/core/time_consts.rb
diff --git a/third_party/protobuf/ruby/lib/google/protobuf/message_exts.rb b/third_party/grpc/src/ruby/lib/grpc/core/time_consts.rb
similarity index 55%
copy from third_party/protobuf/ruby/lib/google/protobuf/message_exts.rb
copy to third_party/grpc/src/ruby/lib/grpc/core/time_consts.rb
index e10266ba2f3637d655c2de89c285558c987c613b..c8eae7806b349b78affbcb279cc46210740d4c44 100644
--- a/third_party/protobuf/ruby/lib/google/protobuf/message_exts.rb
+++ b/third_party/grpc/src/ruby/lib/grpc/core/time_consts.rb
@@ -1,6 +1,5 @@
-# Protocol Buffers - Google's data interchange format
-# Copyright 2008 Google Inc.  All rights reserved.
-# https://developers.google.com/protocol-buffers/
+# Copyright 2015-2016, Google Inc.
+# All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
@@ -28,26 +27,45 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-module Google
-  module Protobuf
-    module MessageExts
+require 'grpc/grpc'
 
-      #this is only called in jruby; mri loades the ClassMethods differently
-      def self.included(klass)
-        klass.extend(ClassMethods)
-      end
-
-      module ClassMethods
-      end
-
-      def to_json
-        self.class.encode_json(self)
-      end
-
-      def to_proto
-        self.class.encode(self)
+# GRPC contains the General RPC module.
+module GRPC
+  module Core
+    # TimeConsts is a module from the C extension.
+    #
+    # Here it's re-opened to add a utility func.
+    module TimeConsts
+      # Converts a time delta to an absolute deadline.
+      #
+      # Assumes timeish is a relative time, and converts its to an absolute,
+      # with following exceptions:
+      #
+      # * if timish is one of the TimeConsts.TimeSpec constants the value is
+      # preserved.
+      # * timish < 0 => TimeConsts.INFINITE_FUTURE
+      # * timish == 0 => TimeConsts.ZERO
+      #
+      # @param timeish [Number|TimeSpec]
+      # @return timeish [Number|TimeSpec]
+      def from_relative_time(timeish)
+        if timeish.is_a? TimeSpec
+          timeish
+        elsif timeish.nil?
+          TimeConsts::ZERO
+        elsif !timeish.is_a? Numeric
+          fail(TypeError,
+               "Cannot make an absolute deadline from #{timeish.inspect}")
+        elsif timeish < 0
+          TimeConsts::INFINITE_FUTURE
+        elsif timeish.zero?
+          TimeConsts::ZERO
+        else
+          Time.now + timeish
+        end
       end
 
+      module_function :from_relative_time
     end
   end
 end