From: Victor Stinner <victor.stinner@haypocalc.com>
Date: Wed, 25 May 2011 20:01:33 +0000 (+0200)
Subject: Fast path for IncrementalNewlineDecoder.decode() in io.TextIOWrapper.read(-1)
X-Git-Tag: v3.3.0a1~2183^2~102
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=fd8211372dc61374dd0280385285b64f190df28b;p=thirdparty%2FPython%2Fcpython.git

Fast path for IncrementalNewlineDecoder.decode() in io.TextIOWrapper.read(-1)

Copy/paste code from textiowrapper_read_chunk().
---

diff --git a/Modules/_io/textio.c b/Modules/_io/textio.c
index 35bd922b8eb9..70d062b16f13 100644
--- a/Modules/_io/textio.c
+++ b/Modules/_io/textio.c
@@ -1513,8 +1513,13 @@ textiowrapper_read(textio *self, PyObject *args)
         PyObject *decoded;
         if (bytes == NULL)
             goto fail;
-        decoded = PyObject_CallMethodObjArgs(self->decoder, _PyIO_str_decode,
-                                             bytes, Py_True, NULL);
+
+        if (Py_TYPE(self->decoder) == &PyIncrementalNewlineDecoder_Type)
+            decoded = _PyIncrementalNewlineDecoder_decode(self->decoder,
+                                                          bytes, 1);
+        else
+            decoded = PyObject_CallMethodObjArgs(
+                self->decoder, _PyIO_str_decode, bytes, Py_True, NULL);
         Py_DECREF(bytes);
         if (decoded == NULL)
             goto fail;