From: Tim Peters <tim.peters@gmail.com>
Date: Wed, 10 Jan 2001 05:42:18 +0000 (+0000)
Subject: Windows mmap should (as the docs probably <wink> say) create a mapping
X-Git-Tag: v2.1a1~354
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=0d9f9dcf67c4c044f27cbbc7d3852951869dee53;p=python

Windows mmap should (as the docs probably <wink> say) create a mapping
without a name when the optional tagname arg isn't specified.  Was
actually creating a mapping with an empty string as the name.
---

diff --git a/Modules/mmapmodule.c b/Modules/mmapmodule.c
index b245c895d6..332b2dab55 100644
--- a/Modules/mmapmodule.c
+++ b/Modules/mmapmodule.c
@@ -907,7 +907,7 @@ new_mmap_object(PyObject *self, PyObject *args)
 	m_obj->pos = (size_t) 0;
 
 	/* set the tag name */
-	if (tagname != NULL) {
+	if (tagname != NULL && *tagname != '\0') {
 		m_obj->tagname = PyMem_Malloc(strlen(tagname)+1);
 		if (m_obj->tagname == NULL) {
 			PyErr_NoMemory();
@@ -924,7 +924,7 @@ new_mmap_object(PyObject *self, PyObject *args)
 					       PAGE_READWRITE,
 					       0,
 					       m_obj->size,
-					       tagname);
+					       m_obj->tagname);
 	if (m_obj->map_handle != NULL) {
 		m_obj->data = (char *) MapViewOfFile (m_obj->map_handle,
 						      FILE_MAP_WRITE,