stream_wrap: use `uv_try_write` where possible

Use `uv_try_write` for string and buffer writes, thus avoiding to do
allocations and copying in some of the cases.

2 files changed, 8 insertions, 3 deletions

diff --git a/benchmark/net/tcp-raw-pipe.js b/benchmark/net/tcp-raw-pipe.js
index 91c69e9b6c9..bda683985d4 100644
--- a/benchmark/net/tcp-raw-pipe.js
+++ b/benchmark/net/tcp-raw-pipe.js
@@ -51,7 +51,7 @@ function server() {
       if (nread < 0)
         fail(nread, 'read');
 
-      var writeReq = {};
+      var writeReq = { async: false };
       err = clientHandle.writeBuffer(writeReq, buffer);
 
       if (err)
diff --git a/benchmark/net/tcp-raw-s2c.js b/benchmark/net/tcp-raw-s2c.js
index 6fb65685272..500be1b72bb 100644
--- a/benchmark/net/tcp-raw-s2c.js
+++ b/benchmark/net/tcp-raw-s2c.js
@@ -68,7 +68,7 @@ function server() {
       write();
 
     function write() {
-      var writeReq = { oncomplete: afterWrite };
+      var writeReq = { async: false, oncomplete: afterWrite };
       var err;
       switch (type) {
         case 'buf':
@@ -82,8 +82,13 @@ function server() {
           break;
       }
 
-      if (err)
+      if (err) {
         fail(err, 'write');
+      } else if (!writeReq.async) {
+        process.nextTick(function() {
+          afterWrite(null, clientHandle, writeReq);
+        });
+      }
     }
 
     function afterWrite(err, handle, req) {