From: Andrew Grigorev <ei-grad@yandex-team.ru>
Date: Thu, 24 May 2012 12:53:51 +0000 (+0400)
Subject: Split large chunks of data in IOStream.write.
X-Git-Tag: v2.3.0~17^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b8e44661464bd2e192322acbe73d08c83f4a1383;p=thirdparty%2Ftornado.git

Split large chunks of data in IOStream.write.

Closes #515.
---

diff --git a/tornado/iostream.py b/tornado/iostream.py
index f8fadf689..62f31fdc4 100644
--- a/tornado/iostream.py
+++ b/tornado/iostream.py
@@ -192,7 +192,11 @@ class IOStream(object):
         if data:
             # We use bool(_write_buffer) as a proxy for write_buffer_size>0,
             # so never put empty strings in the buffer.
-            self._write_buffer.append(data)
+            if len(data) > 128*1024:
+                for i in range(0, len(data), 128*1024):
+                    self._write_buffer.append(data[i:i+128*1024])
+            else:
+                self._write_buffer.append(data)
         self._write_callback = stack_context.wrap(callback)
         self._handle_write()
         if self._write_buffer: