From 4221b90c3febbe03a4b47e47248263741a0fdd4a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bartek=20Iwa=C5=84czuk?= <biwanczuk@gmail.com>
Date: Mon, 14 Oct 2019 23:46:27 +0200
Subject: perf: eager poll async ops in Isolate (#3046)

---
 core/libdeno/api.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'core/libdeno')

diff --git a/core/libdeno/api.cc b/core/libdeno/api.cc
index 18dc1d43e..061638cb5 100644
--- a/core/libdeno/api.cc
+++ b/core/libdeno/api.cc
@@ -165,7 +165,7 @@ void deno_respond(Deno* d_, void* user_data, deno_op_id op_id, deno_buf buf) {
   if (d->current_args_ != nullptr) {
     // Synchronous response.
     // Note op_id is not passed back in the case of synchronous response.
-    if (buf.data_ptr != nullptr) {
+    if (buf.data_ptr != nullptr && buf.data_len > 0) {
       auto ab = deno::ImportBuf(d, buf);
       d->current_args_->GetReturnValue().Set(ab);
     }
-- 
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