Bayonnne specific static keydata class. More...

#include <bayonne.h>

Inheritance diagram for ost::StaticKeydata:

Collaboration diagram for ost::StaticKeydata:

Public Member Functions
	StaticKeydata (const char path, Keydata::Define defkeys=NULL, const char *homepath=NULL)

const char *	getString (const char *id)

long	getValue (const char *id)

bool	getBoolean (const char *id)

unsigned	getIndex (char **data, unsigned max)
	Get an index array of ALL keywords that are stored by the current keydata object. More...

void	load (const char *keypath)
	Load additional key values into the currrent object from the specfied config source (a config file/section pair). More...

void	load (Define *pairs)
	Load default keywords into the current object. More...

void	loadPrefix (const char prefix, const char keypath)
	Load additional key values into the currrent object from the specfied config source (a config file/section pair). More...

void	loadFile (const char filepath, const char keys=NULL, const char *pre=NULL)
	Load additional keys into the current object using a real filename that is directly passed rather than a computed key path. More...

void	unlink (void)
	Unlink the keydata object from the cache file stream. More...

int	getCount (const char *sym)
	Get a count of the number of data "values" that is associated with a specific keyword. More...

unsigned	getCount (void)
	Get the count of keyword indexes that are actually available so one can allocate a table to receive getIndex. More...

const char *	getFirst (const char *sym)
	Get the first data value for a given keyword. More...

const char *	getLast (const char *sym)
	Get the last (most recently set) value for a given keyword. More...

bool	isKey (const char *sym)
	Find if a given key exists. More...

const char *	getString (const char sym, const char def=NULL)
	Get a string value, with an optional default if missing. More...

long	getLong (const char *sym, long def=0)
	Get a long value, with an optional default if missing. More...

bool	getBool (const char *key)
	Get a bool value. More...

double	getDouble (const char *key, double def=0.)
	Get a floating value. More...

void	setValue (const char sym, const char data)
	Set (replace) the value of a given keyword. More...

const char const	getList (const char *sym)
	Return a list of all values set for the given keyword returned in order. More...

void	clrValue (const char *sym)
	Clear all values associated with a given keyword. More...

const char *	operator[] (const char *keyword)
	A convient notation for accessing the keydata as an associative array of keyword/value pairs through the [] operator. More...

Static Public Member Functions
static void	end (void)
	static member to end keydata i/o allocations. More...

Protected Member Functions
Keysym *	getSymbol (const char *sym, bool create)

virtual void *	first (size_t size)
	Allocate first workspace from paged memory. More...

char *	first (char *str)
	Allocate a string from the memory pager pool and copy the string into it's new memory area. More...

virtual void *	alloc (size_t size)
	Allocate memory from either the currently active page, or allocate a new page for the object. More...

char *	alloc (const char *str)
	Allocate a string from the memory pager pool and copy the string inti it's new memory area. More...

void	purge (void)
	purge the current memory pool. More...

void	clean (void)
	Clean for memory cleanup before exiting. More...

int	getPages (void)
	Return the total number of pages that have been allocated for this memory pool. More...

Detailed Description

Bayonnne specific static keydata class.

This is used for configuration keys which cannot be reloaded at runtime.

Author: David Sugar dyfet.nosp@m.@gnu.nosp@m.telep.nosp@m.hony.nosp@m..org Static Keydata

Definition at line 159 of file bayonne.h.

Constructor & Destructor Documentation

ost::StaticKeydata::StaticKeydata	(	const char *	path,
		Keydata::Define *	defkeys = `NULL`,
		const char *	homepath = `NULL`
	)

Member Function Documentation

virtual void* MemPager::alloc ( size_t size )

protectedvirtualinherited

Allocate memory from either the currently active page, or allocate a new page for the object.

Parameters

size	size of memory to allocate.

Returns: pointer to allocated memory.

Reimplemented in SharedMemPager.

char* MemPager::alloc ( const char * str )

protectedinherited

Allocate a string from the memory pager pool and copy the string inti it's new memory area.

This checks only the last active page for available space before allocating a new page.

Parameters

str	string to allocate and copy into paged memory pool.

Returns: copy of string from allocated memory.

void MemPager::clean ( void )

protectedinherited

Clean for memory cleanup before exiting.

void Keydata::clrValue ( const char * sym )

inherited

Clear all values associated with a given keyword.

This does not de-allocate the keyword from memory, however.

Returns: keyword name to clear.

static void Keydata::end ( void )

staticinherited

static member to end keydata i/o allocations.

virtual void* MemPager::first ( size_t size )

protectedvirtualinherited

Allocate first workspace from paged memory.

This method scans all currently allocated blocks for available space before adding new pages and hence is both slower and more efficient.

Parameters

size	size of memory to allocate.

Returns: pointer to allocated memory.

Reimplemented in SharedMemPager.

char* MemPager::first ( char * str )

protectedinherited

Allocate a string from the memory pager pool and copy the string into it's new memory area.

This method allocates memory by first searching for an available page, and then allocating a new page if no space is found.

Parameters

str	string to allocate and copy into paged memory pool.

Returns: copy of string from allocated memory.

bool Keydata::getBool ( const char * key )

inherited

Get a bool value.

Parameters

sym	keyword name.

Returns: true or false.

bool ost::StaticKeydata::getBoolean ( const char * id )

inline

Definition at line 170 of file bayonne.h.

int Keydata::getCount ( const char * sym )

inherited

Get a count of the number of data "values" that is associated with a specific keyword.

Each value is from an accumulation of "<code>load()</code>" requests.

Parameters

sym	keyword symbol name.

Returns: count of values associated with keyword.

unsigned Keydata::getCount ( void )

inherited

Get the count of keyword indexes that are actually available so one can allocate a table to receive getIndex.

Returns: number of keywords found.

double Keydata::getDouble	(	const char *	key,
		double	def = `0.`
	)

inherited

Get a floating value.

Parameters

sym	keyword name.
default	if not set.

Returns: value of key.

const char* Keydata::getFirst ( const char * sym )

inherited

Get the first data value for a given keyword.

This will typically be the /etc set global default.

Parameters

sym	keyword symbol name.

Returns: first set value for this symbol.

unsigned Keydata::getIndex	(	char **	data,
		unsigned	max
	)

inherited

Get an index array of ALL keywords that are stored by the current keydata object.

Returns: number of keywords found.

Parameters

data	pointer of array to hold keyword strings.
max	number of entries the array can hold.

const char* Keydata::getLast ( const char * sym )

inherited

Get the last (most recently set) value for a given keyword.

This is typically the value actually used.

Parameters

sym	keyword symbol name.

Returns: last set value for this symbol.

const char* const* Keydata::getList ( const char * sym )

inherited

Return a list of all values set for the given keyword returned in order.

Returns: list pointer of array holding all keyword values.

Parameters

sym	keyword name to fetch.

long Keydata::getLong	(	const char *	sym,
		long	def = `0`
	)

inherited

Get a long value, with an optional default if missing.

Parameters

sym	keyword name.
default	if not present.

Returns: long value of key.

int MemPager::getPages ( void )

inlineinherited

Return the total number of pages that have been allocated for this memory pool.

Returns: number of pages allocated.

Definition at line 181 of file misc.h.

const char* ost::StaticKeydata::getString ( const char * id )

inline

Definition at line 164 of file bayonne.h.

const char* Keydata::getString	(	const char *	sym,
		const char *	def = `NULL`
	)

inherited

Get a string value, with an optional default if missing.

Parameters

sym	keyword name.
default	if not present.

Returns: string value of key.

Keysym* Keydata::getSymbol	(	const char *	sym,
		bool	create
	)

protectedinherited

long ost::StaticKeydata::getValue ( const char * id )

inline

Definition at line 167 of file bayonne.h.

bool Keydata::isKey ( const char * sym )

inherited

Find if a given key exists.

Parameters

sym	keyword to find.

Returns: true if exists.

void Keydata::load ( const char * keypath )

inherited

Load additional key values into the currrent object from the specfied config source (a config file/section pair).

These values will overlay the current keywords when matches are found. This can be used typically in a derived config object class constructor to first load a /etc section, and then load a matching user specific entry from ~/. to override default system values with user specific keyword values.

Parameters

keypath (filepath/section)

void Keydata::load ( Define * pairs )

inherited

Load default keywords into the current object.

This only loads keyword entries which have not already been defined to reduce memory usage. This form of Load is also commonly used in the constructor of a derived Keydata class.

Parameters

pairs list of NULL terminated default keyword/value pairs.

void Keydata::loadFile	(	const char *	filepath,
		const char *	keys = `NULL`,
		const char *	pre = `NULL`
	)

inherited

Load additional keys into the current object using a real filename that is directly passed rather than a computed key path.

This also uses a [keys] section as passed to the object.

Parameters

filepath	to load from
keys	section to parse from, or NULL to parse from head
pre	optional key prefix

void Keydata::loadPrefix	(	const char *	prefix,
		const char *	keypath
	)

inherited

Load additional key values into the currrent object from the specfied config source (a config file/section pair).

These values will overlay the current keywords when matches are found. This can be used typically in a derived config object class constructor to first load a /etc section, and then load a matching user specific entry from ~/. to override default system values with user specific keyword values. This varient puts a prefix in front of the key name.

Parameters

prefix
keypath	(filepath/section)

const char* Keydata::operator[] ( const char * keyword )

inlineinherited

A convient notation for accessing the keydata as an associative array of keyword/value pairs through the [] operator.

Definition at line 611 of file misc.h.

void MemPager::purge ( void )

protectedinherited

purge the current memory pool.

void Keydata::setValue	(	const char *	sym,
		const char *	data
	)

inherited

Set (replace) the value of a given keyword.

This new value will become the value returned from getLast(), while the prior value will still be stored and found from getList().

Parameters

sym	keyword name to set.
data	string to store for the keyword.

void Keydata::unlink ( void )

inherited

Unlink the keydata object from the cache file stream.

This should be used if you plan to keepa Keydata object after it is loaded once all keydata objects have been loaded, otherwise the cfgFile stream will remain open. You can also use endKeydata().

The documentation for this class was generated from the following file:

bayonne.h

Public Member Functions

Static Public Member Functions

Protected Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation