Merge branch 'master' into errors-moduleerrors-module

1 files changed, 0 insertions, 63 deletions

diff --git a/sandbox/trigger_double_dealloc.py b/sandbox/trigger_double_dealloc.py
deleted file mode 100644
index 1312aa3..0000000
--- a/sandbox/trigger_double_dealloc.py
+++ /dev/null
@@ -1,63 +0,0 @@
-from __future__ import print_function
-
-import psycopg2, psycopg2.extensions
-import threading
-import gc
-import time
-import sys
-
-# inherit psycopg2 connection class just so that
-# garbage collector enters the tp_clear code path
-# in delete_garbage()
-
-class my_connection(psycopg2.extensions.connection):
-    pass
-
-class db_user(threading.Thread):
-    def run(self):
-        conn2 = psycopg2.connect(sys.argv[1], connection_factory=my_connection)
-        cursor = conn2.cursor()
-        cursor.execute("UPDATE test_psycopg2_dealloc SET a = 3", async=1)
-
-        # the conn2 desctructor will block indefinitely
-        # on the completion of the query
-        # (and it will not be holding the GIL during that time)
-        print("begin conn2 del", file=sys.stderr)
-        del cursor, conn2
-        print("end conn2 del", file=sys.stderr)
-
-def main():
-    # lock out a db row
-    conn1 = psycopg2.connect(sys.argv[1], connection_factory=my_connection)
-    cursor = conn1.cursor()
-    cursor.execute("DROP TABLE IF EXISTS test_psycopg2_dealloc")
-    cursor.execute("CREATE TABLE test_psycopg2_dealloc (a int)")
-    cursor.execute("INSERT INTO test_psycopg2_dealloc VALUES (1)")
-    conn1.commit()
-    cursor.execute("UPDATE test_psycopg2_dealloc SET a = 2", async=1)
-
-    # concurrent thread trying to access the locked row
-    db_user().start()
-
-    # eventually, a gc.collect run will happen
-    # while the conn2 is inside conn_close()
-    # but this second dealloc won't get blocked
-    # as it will avoid conn_close()
-    for i in range(10):
-        if gc.collect():
-            print("garbage collection done", file=sys.stderr)
-            break
-        time.sleep(1)
-
-    # we now unlock the row by invoking
-    # the desctructor of conn1. This will permit the
-    # concurrent thread destructor of conn2 to
-    # continue and it will end up trying to free
-    # self->dsn a second time.
-    print("begin conn1 del", file=sys.stderr)
-    del cursor, conn1
-    print("end conn1 del", file=sys.stderr)
-
-
-if __name__ == '__main__':
-    main()