mirror of https://github.com/etcd-io/bbolt.git
31 lines
761 B
Go
31 lines
761 B
Go
package bolt
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import (
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"unsafe"
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)
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type nodeid uint16
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// lnode represents a node on a leaf page.
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type lnode struct {
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flags uint16
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keySize uint16
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dataSize uint32
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data uintptr // Pointer to the beginning of the data.
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}
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// key returns a byte slice that of the node key.
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func (n *lnode) key() []byte {
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return (*[MaxKeySize]byte)(unsafe.Pointer(&n.data))[:n.keySize]
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}
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// data returns a byte slice that of the node data.
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func (n *lnode) data() []byte {
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return (*[MaxKeySize]byte)(unsafe.Pointer(&n.data))[n.keySize : n.keySize+n.dataSize]
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}
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// lnodeSize returns the number of bytes required to store a key+data as a leaf node.
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func lnodeSize(key []byte, data []byte) int {
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return int(unsafe.Offsetof((*lnode)(nil)).data) + len(key) + len(data)
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}
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