Merged revisions 65654 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r65654 | martin.v.loewis | 2008-08-12 16:49:50 +0200 (Tue, 12 Aug 2008) | 6 lines

  Issue #3139: Make buffer-interface thread-safe wrt. PyArg_ParseTuple,
  by denying s# to parse objects that have a releasebuffer procedure,
  and introducing s*.

  More module might need to get converted to use s*.
........
diff --git a/Modules/_struct.c b/Modules/_struct.c
index 43be9ed..4a257c0 100644
--- a/Modules/_struct.c
+++ b/Modules/_struct.c
@@ -1567,11 +1567,11 @@
 		PyErr_Format(StructError,
 			     "unpack requires a bytes argument of length %zd",
 			     soself->s_size);
-                PyObject_ReleaseBuffer(input, &vbuf);
+                PyBuffer_Release(&vbuf);
 		return NULL;
 	}
 	result = s_unpack_internal(soself, vbuf.buf);
-	PyObject_ReleaseBuffer(input, &vbuf);
+	PyBuffer_Release(&vbuf);
 	return result;
 }
 
@@ -1609,11 +1609,11 @@
 		PyErr_Format(StructError,
 			"unpack_from requires a buffer of at least %zd bytes",
 			soself->s_size);
-                PyObject_ReleaseBuffer(input, &vbuf);
+                PyBuffer_Release(&vbuf);
 		return NULL;
 	}
 	result = s_unpack_internal(soself, (char*)vbuf.buf + offset);
-	PyObject_ReleaseBuffer(input, &vbuf);
+	PyBuffer_Release(&vbuf);
 	return result;
 }