Transfer Buffer through "remote"

atom/browser/lib/rpc-server.coffee

@@ -7,6 +7,7 @@ v8Util = process.atomBinding 'v8_util'
 valueToMeta = (sender, value) ->
   meta = type: typeof value
 
+  meta.type = 'buffer' if Buffer.isBuffer value
   meta.type = 'value' if value is null
   meta.type = 'array' if Array.isArray value
 
@@ -26,6 +27,8 @@ valueToMeta = (sender, value) ->
 
     meta.members = []
     meta.members.push {name: prop, type: typeof field} for prop, field of value
+  else if meta.type is 'buffer'
+    meta.value = Array::slice.call value, 0
   else
     meta.type = 'value'
     meta.value = value
@@ -43,6 +46,7 @@ unwrapArgs = (sender, args) ->
       when 'value' then meta.value
       when 'remote-object' then objectsRegistry.get meta.id
       when 'array' then unwrapArgs sender, meta.value
+      when 'buffer' then new Buffer(meta.value)
       when 'object'
         ret = v8Util.createObjectWithName meta.name
         for member in meta.members

atom/renderer/api/lib/remote.coffee

@@ -10,6 +10,8 @@ wrapArgs = (args) ->
   valueToMeta = (value) ->
     if Array.isArray value
       type: 'array', value: wrapArgs(value)
+    else if Buffer.isBuffer value
+      type: 'buffer', value: Array::slice.call(value, 0)
     else if value? and typeof value is 'object' and v8Util.getHiddenValue value, 'atomId'
       type: 'remote-object', id: v8Util.getHiddenValue value, 'atomId'
     else if value? and typeof value is 'object'
@@ -30,6 +32,7 @@ metaToValue = (meta) ->
   switch meta.type
     when 'value' then meta.value
     when 'array' then (metaToValue(el) for el in meta.members)
+    when 'buffer' then new Buffer(meta.value)
     when 'error'
       throw new Error("#{meta.message}\n#{meta.stack}")
     else