From 2b47fd2eb615511ee1f2f29d496cd817e54740e1 Mon Sep 17 00:00:00 2001
From: Fedor Indutny <fedor@indutny.com>
Date: Sun, 1 Mar 2015 00:46:43 +0300
Subject: stream_base: `.writev()` has limited support

Only TCP and JSStream do support `.writev()` on all platforms at the
moment. Ensure that it won't be enabled everywhere.

Fix: https://github.com/iojs/io.js/issues/995
PR-URL: https://github.com/iojs/io.js/pull/1008
Reviewed-by: Bert Belder <bertbelder@gmail.com>
Reviewed-By: Rod Vagg <rod@vagg.org>
---
 src/stream_base-inl.h | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'src/stream_base-inl.h')

diff --git a/src/stream_base-inl.h b/src/stream_base-inl.h
index 2167bdeb13..490909456b 100644
--- a/src/stream_base-inl.h
+++ b/src/stream_base-inl.h
@@ -21,7 +21,9 @@ using v8::String;
 using v8::Value;
 
 template <class Base>
-void StreamBase::AddMethods(Environment* env, Handle<FunctionTemplate> t) {
+void StreamBase::AddMethods(Environment* env,
+                            Handle<FunctionTemplate> t,
+                            int flags) {
   HandleScope scope(env->isolate());
 
   enum PropertyAttribute attributes =
@@ -36,7 +38,8 @@ void StreamBase::AddMethods(Environment* env, Handle<FunctionTemplate> t) {
   env->SetProtoMethod(t, "readStart", JSMethod<Base, &StreamBase::ReadStart>);
   env->SetProtoMethod(t, "readStop", JSMethod<Base, &StreamBase::ReadStop>);
   env->SetProtoMethod(t, "shutdown", JSMethod<Base, &StreamBase::Shutdown>);
-  env->SetProtoMethod(t, "writev", JSMethod<Base, &StreamBase::Writev>);
+  if ((flags & kFlagHasWritev) != 0)
+    env->SetProtoMethod(t, "writev", JSMethod<Base, &StreamBase::Writev>);
   env->SetProtoMethod(t,
                       "writeBuffer",
                       JSMethod<Base, &StreamBase::WriteBuffer>);
-- 
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