[Python-checkins] cpython: overlapped.c: Fix usage of the union
victor.stinner
python-checkins at python.org
Thu Jan 30 19:07:03 CET 2014
http://hg.python.org/cpython/rev/73dbb884eb09
changeset: 88837:73dbb884eb09
user: Victor Stinner <victor.stinner at gmail.com>
date: Thu Jan 30 19:06:44 2014 +0100
summary:
overlapped.c: Fix usage of the union
* read_buffer can only be used for TYPE_READ and TYPE_ACCEPT types
* write_buffer can only be used for TYPE_WRITE type
files:
Modules/overlapped.c | 20 +++++++++++---------
1 files changed, 11 insertions(+), 9 deletions(-)
diff --git a/Modules/overlapped.c b/Modules/overlapped.c
--- a/Modules/overlapped.c
+++ b/Modules/overlapped.c
@@ -45,9 +45,9 @@
/* Type of operation */
DWORD type;
union {
- /* Buffer used for reading (optional) */
+ /* Buffer used for reading: TYPE_READ and TYPE_ACCEPT */
PyObject *read_buffer;
- /* Buffer used for writing (optional) */
+ /* Buffer used for writing: TYPE_WRITE */
Py_buffer write_buffer;
};
} OverlappedObject;
@@ -568,13 +568,15 @@
if (self->overlapped.hEvent != NULL)
CloseHandle(self->overlapped.hEvent);
- if (self->write_buffer.obj)
- PyBuffer_Release(&self->write_buffer);
-
switch (self->type) {
- case TYPE_READ:
- case TYPE_ACCEPT:
- Py_CLEAR(self->read_buffer);
+ case TYPE_READ:
+ case TYPE_ACCEPT:
+ Py_CLEAR(self->read_buffer);
+ break;
+ case TYPE_WRITE:
+ if (self->write_buffer.obj)
+ PyBuffer_Release(&self->write_buffer);
+ break;
}
PyObject_Del(self);
SetLastError(olderr);
@@ -648,7 +650,7 @@
case ERROR_MORE_DATA:
break;
case ERROR_BROKEN_PIPE:
- if (self->read_buffer != NULL)
+ if ((self->type == TYPE_READ || self->type == TYPE_ACCEPT) && self->read_buffer != NULL)
break;
/* fall through */
default:
--
Repository URL: http://hg.python.org/cpython
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