# 6.16. ODPI-C Enumeration dpiPoolGetMode

This enumeration identifies the mode to use when getting sessions from a session pool.

Value | Description
--- | ---
DPI_MODE_POOL_GET_FORCEGET | Specifies that a new session should be created if all of the sessions in the pool are busy, even if this exceeds the maximum sessions allowable for the session pool (see `dpiPoolCreateParams.maxSessions`).
DPI_MODE_POOL_GET_NOWAIT | Specifies that the caller should return immediately, regardless of whether a session is available in the pool. If a session is not available an error is returned.
DPI_MODE_POOL_GET_TIMEDWAIT | Specifies that the caller should block until a session is available from the pool, but only for the specified length of time defined in `dpiPoolCreateParams.waitTimeout`. If a session is not available within the specified period of time an error is returned.
DPI_MODE_POOL_GET_WAIT | Specifies that the caller should block until a session is available from the pool.