For double ring, expand to previous node.
-
m_dring_prev - dring
-
m_ndring_prev - ndring
For double ring, expand to previous node.
- Parameters:
- p_ring - (IN) a pointer to your structure node
field - (IN) the ring structure field name in the node structure.
- Returns:
- 0 the ring is empty, or the previous node in the ring.
Alphabetic index
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