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Fix concurrent use of conection.poll()

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Close #1248
This commit is contained in:
Daniele Varrazzo 2021-06-03 00:06:31 +01:00
parent 359679b136
commit 22af61bc31
2 changed files with 7 additions and 0 deletions
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1
NEWS
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@ -4,6 +4,7 @@ Current release
What's new in psycopg 2.8.7 What's new in psycopg 2.8.7
^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^
- Fix concurrent use of `!conection.poll()` (:ticket:`1248`).
- Accept empty params as `~psycopg2.connect()` (:ticket:`#1250`). - Accept empty params as `~psycopg2.connect()` (:ticket:`#1250`).
- Fix attributes refcount in `Column` initialisation (:ticket:`#1252`). - Fix attributes refcount in `Column` initialisation (:ticket:`#1252`).
- Allow re-initialisation of static variables in the C module (:ticket:`#1267`). - Allow re-initialisation of static variables in the C module (:ticket:`#1267`).

6
psycopg/connection_int.c
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@ -904,8 +904,14 @@ _conn_poll_advance_read(connectionObject *self)
Dprintf("conn_poll: poll reading"); Dprintf("conn_poll: poll reading");
Py_BEGIN_ALLOW_THREADS;
pthread_mutex_lock(&(self->lock));
busy = pq_get_result_async(self); busy = pq_get_result_async(self);
pthread_mutex_unlock(&(self->lock));
Py_END_ALLOW_THREADS;
switch (busy) { switch (busy) {
case 0: /* result is ready */ case 0: /* result is ready */
Dprintf("conn_poll: async_status -> ASYNC_DONE"); Dprintf("conn_poll: async_status -> ASYNC_DONE");