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Handle ok poll() without a cursor having executed queries

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Close #887
This commit is contained in:
Daniele Varrazzo 2019-04-05 18:04:55 +01:00
parent 34d45aea87
commit 755a128ffb
3 changed files with 12 additions and 7 deletions
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7
NEWS
View File

@ -1,6 +1,13 @@
Current release
---------------
What's new in psycopg 2.8.1
---------------------------
- Fixed "there's no async cursor" error polling a connection with no cursor
(:ticket:`#887`).
What's new in psycopg 2.8
-------------------------

8
psycopg/connection_int.c
View File

@ -1045,12 +1045,6 @@ static cursorObject *
_conn_get_async_cursor(connectionObject *self) {
PyObject *py_curs;
if (!(self->async_cursor)) {
PyErr_SetString(PyExc_SystemError,
"unexpectedly, there's no async cursor here");
goto error;
}
if (!(py_curs = PyWeakref_GetObject(self->async_cursor))) {
PyErr_SetString(PyExc_SystemError,
"got null dereferencing cursor weakref");
@ -1108,7 +1102,7 @@ conn_poll(connectionObject *self)
Dprintf("conn_poll: status -> CONN_STATUS_*");
res = _conn_poll_query(self);
if (res == PSYCO_POLL_OK && self->async) {
if (res == PSYCO_POLL_OK && self->async && self->async_cursor) {
cursorObject *curs;
/* An async query has just finished: parse the tuple in the

4
tests/test_async.py
View File

@ -495,6 +495,10 @@ class AsyncTests(ConnectingTestCase):
self.assert_(polls >= 8, polls)
def test_poll_noop(self):
self.conn.poll()
self.conn.poll()
def test_suite():
return unittest.TestLoader().loadTestsFromName(__name__)