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72 lines
1.5 KiB
C
72 lines
1.5 KiB
C
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/*
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* Summary: Chained hash tables
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* Description: This module implements the hash table support used in
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* various places in the library.
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*
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* Copy: See Copyright for the status of this software.
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*
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* Author: Bjorn Reese <bjorn.reese@systematic.dk>
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*/
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#ifndef __XEN_HASH_H__
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#define __XEN_HASH_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* The hash table.
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*/
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typedef struct _xenHashTable xenHashTable;
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typedef xenHashTable *xenHashTablePtr;
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/*
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* function types:
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*/
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/**
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* xenHashDeallocator:
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* @payload: the data in the hash
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* @name: the name associated
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*
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* Callback to free data from a hash.
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*/
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typedef void (*xenHashDeallocator)(void *payload, char *name);
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/*
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* Constructor and destructor.
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*/
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xenHashTablePtr xenHashCreate (int size);
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void
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xenHashFree (xenHashTablePtr table,
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xenHashDeallocator f);
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int xenHashSize (xenHashTablePtr table);
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/*
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* Add a new entry to the hash table.
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*/
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int xenHashAddEntry (xenHashTablePtr table,
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const char *name,
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void *userdata);
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int xenHashUpdateEntry(xenHashTablePtr table,
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const char *name,
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void *userdata,
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xenHashDeallocator f);
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/*
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* Remove an entry from the hash table.
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*/
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int xenHashRemoveEntry(xenHashTablePtr table,
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const char *name,
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xenHashDeallocator f);
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/*
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* Retrieve the userdata.
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*/
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void * xenHashLookup (xenHashTablePtr table,
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const char *name);
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#ifdef __cplusplus
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}
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#endif
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#endif /* ! __XEN_HASH_H__ */
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