Create a connection pool.

factory:

a function that produces ready connections

dbapi_module:

the DB-API compliant module that connections come from

blocking:

determines behavior when exceeding the maximum (false means report an error; otherwise block and wait until the number of connections decreases)

maxusage:

maximum number of reuses of a single connection (None means unlimited reuse) When this maximum usage number of the connection is reached, the connection is automatically reset (closed and reopened).

Get a solid, cached connection for the current thread

Get a solid, unpooled solid DB-API 2 connection.

Close all connections in the pool.

@@: This can't close connections in other threads, but should be able to.

Pool is being garbage collected