Action against software patentsGnome2 LogoW3C LogoRed Hat Logo
Made with Libxml2 Logo

Module dict from libxml2

API Menu
API Indexes
Related links

dictionary of reusable strings, just used to avoid allocation and freeing operations.

Table of Contents

Structure xmlDict
struct _xmlDict The content of this structure is not made public by the API.
Typedef xmlDict * xmlDictPtr
void	xmlDictCleanup			(void)
xmlDictPtr	xmlDictCreate		(void)
xmlDictPtr	xmlDictCreateSub	(xmlDictPtr sub)
const xmlChar *	xmlDictExists		(xmlDictPtr dict, 
const xmlChar * name,
int len)
void	xmlDictFree			(xmlDictPtr dict)
size_t	xmlDictGetUsage			(xmlDictPtr dict)
const xmlChar *	xmlDictLookup		(xmlDictPtr dict, 
const xmlChar * name,
int len)
int	xmlDictOwns			(xmlDictPtr dict, 
const xmlChar * str)
const xmlChar *	xmlDictQLookup		(xmlDictPtr dict, 
const xmlChar * prefix,
const xmlChar * name)
int	xmlDictReference		(xmlDictPtr dict)
size_t	xmlDictSetLimit			(xmlDictPtr dict, 
size_t limit)
int	xmlDictSize			(xmlDictPtr dict)
int	xmlInitializeDict		(void)

Description

Structure xmlDict

Structure xmlDict
struct _xmlDict { The content of this structure is not made public by the API. }

Function: xmlDictCleanup

void	xmlDictCleanup			(void)

Free the dictionary mutex. Do not call unless sure the library is not in use anymore !

Function: xmlDictCreate

xmlDictPtr	xmlDictCreate		(void)

Create a new dictionary

Returns:the newly created dictionary, or NULL if an error occurred.

Function: xmlDictCreateSub

xmlDictPtr	xmlDictCreateSub	(xmlDictPtr sub)

Create a new dictionary, inheriting strings from the read-only dictionary @sub. On lookup, strings are first searched in the new dictionary, then in @sub, and if not found are created in the new dictionary.

sub:an existing dictionary
Returns:the newly created dictionary, or NULL if an error occurred.

Function: xmlDictExists

const xmlChar *	xmlDictExists		(xmlDictPtr dict, 
const xmlChar * name,
int len)

Check if the @name exists in the dictionary @dict.

dict:the dictionary
name:the name of the userdata
len:the length of the name, if -1 it is recomputed
Returns:the internal copy of the name or NULL if not found.

Function: xmlDictFree

void	xmlDictFree			(xmlDictPtr dict)

Free the hash @dict and its contents. The userdata is deallocated with @f if provided.

dict:the dictionary

Function: xmlDictGetUsage

size_t	xmlDictGetUsage			(xmlDictPtr dict)

Get how much memory is used by a dictionary for strings Added in 2.9.0

dict:the dictionary
Returns:the amount of strings allocated

Function: xmlDictLookup

const xmlChar *	xmlDictLookup		(xmlDictPtr dict, 
const xmlChar * name,
int len)

Add the @name to the dictionary @dict if not present.

dict:the dictionary
name:the name of the userdata
len:the length of the name, if -1 it is recomputed
Returns:the internal copy of the name or NULL in case of internal error

Function: xmlDictOwns

int	xmlDictOwns			(xmlDictPtr dict, 
const xmlChar * str)

check if a string is owned by the disctionary

dict:the dictionary
str:the string
Returns:1 if true, 0 if false and -1 in case of error -1 in case of error

Function: xmlDictQLookup

const xmlChar *	xmlDictQLookup		(xmlDictPtr dict, 
const xmlChar * prefix,
const xmlChar * name)

Add the QName @prefix:@name to the hash @dict if not present.

dict:the dictionary
prefix:the prefix
name:the name
Returns:the internal copy of the QName or NULL in case of internal error

Function: xmlDictReference

int	xmlDictReference		(xmlDictPtr dict)

Increment the reference counter of a dictionary

dict:the dictionary
Returns:0 in case of success and -1 in case of error

Function: xmlDictSetLimit

size_t	xmlDictSetLimit			(xmlDictPtr dict, 
size_t limit)

Set a size limit for the dictionary Added in 2.9.0

dict:the dictionary
limit:the limit in bytes
Returns:the previous limit of the dictionary or 0

Function: xmlDictSize

int	xmlDictSize			(xmlDictPtr dict)

Query the number of elements installed in the hash @dict.

dict:the dictionary
Returns:the number of elements in the dictionary or -1 in case of error

Function: xmlInitializeDict

int	xmlInitializeDict		(void)

Do the dictionary mutex initialization. this function is deprecated

Returns:0 if initialization was already done, and 1 if that call led to the initialization

Daniel Veillard