diff -ur thrift-0.9.0/lib/cpp/src/thrift/transport/THttpTransport.cpp thrift-0.9.0-http-refill/lib/cpp/src/thrift/transport/THttpTransport.cpp
--- thrift-0.9.0/lib/cpp/src/thrift/transport/THttpTransport.cpp	2012-10-12 00:58:06.000000000 +0000
+++ thrift-0.9.0-http-refill/lib/cpp/src/thrift/transport/THttpTransport.cpp	2015-06-19 10:50:02.818636967 +0000
@@ -80,7 +80,10 @@
   uint32_t size;
 
   // Get more data!
-  refill();
+  uint32_t avail = httpBufLen_ - httpPos_;
+  if (avail == 0) {
+    refill();
+  }
 
   if (readHeaders_) {
     readHeaders();