Trie

The private trie structure. More...

Collaboration diagram for Trie:

Backend *	elektraTrieLookup (Trie *trie, const Key *key)
	Internal Datastructure for mountpoints. More...
int	elektraTrieClose (Trie *trie, Key *errorKey)
	Closes the trie and all opened backends within. More...

Detailed Description

The private trie structure.

A trie is a data structure which can handle the longest prefix matching very fast. This is exactly what needs to be done when using kdbGet() and kdbSet() in a hierarchy where backends are mounted - you need the backend mounted closest to the parentKey.

Function Documentation

int elektraTrieClose	(	Trie *	trie,
		Key *	errorKey
	)

Closes the trie and all opened backends within.

Parameters

trie	the trie to close
errorKey	the key used to report warnings

Return values

0	on success

Backend* elektraTrieLookup	(	Trie *	trie,
		const Key *	key
	)

Internal Datastructure for mountpoints.

Lookups a backend inside the trie.

Returns

the backend if found

0 otherwise

Parameters

trie	the trie object to work with
key	the name of this key will be looked up