libdictionary.c File Reference

#include <search.h>
#include <stdlib.h>
#include <string.h>
#include <pthread.h>
#include "libdictionary.h"

Functions
void	dictionary_init (dictionary_t *d)
	Must be called first, initializes the dictionary data structure.
int	dictionary_add (dictionary_t *d, const char *key, const char *value)
	Adds a (key, value) pair to the dictionary.
const char *	dictionary_get (dictionary_t *d, const char *key)
	Retrieves the value from the dictionary for a given key.
int	dictionary_parse (dictionary_t *d, char *key_value)
	Parses the key_value string and add the parsed key and value to the dictionary.
int	dictionary_remove (dictionary_t *d, const char *key)
	Removes the (key, value) entry from the dictionary.
void	dictionary_destroy (dictionary_t *d)
	Frees all internal memory associated with the dictionary.
void	dictionary_destroy_all (dictionary_t *d)
	Frees all internal memory associated with the dictionary and key/values pairs.

Detailed Description

Function Documentation

int dictionary_add	(	dictionary_t *	d,
		const char *	key,
		const char *	value
	)

Adds a (key, value) pair to the dictionary.

Returns

0 on success or KEY_EXISTS if the key already exists in the dictionary.

void dictionary_destroy

(

dictionary_t *

d

)

Frees all internal memory associated with the dictionary.

Must be called last.

void dictionary_destroy_all

(

dictionary_t *

d

)

Frees all internal memory associated with the dictionary and key/values pairs.

Must be called last.

const char* dictionary_get	(	dictionary_t *	d,
		const char *	key
	)

Retrieves the value from the dictionary for a given key.

Returns

The stored value associated with the key if the key exists in the dictionary. If the key does not exist, this function will return NULL.

void dictionary_init

(

dictionary_t *

d

)

Must be called first, initializes the dictionary data structure.

Same as MP1.

int dictionary_parse	(	dictionary_t *	d,
		char *	key_value
	)

Parses the key_value string and add the parsed key and value to the dictionary.

If successful, the key_value string will be modified in-place in order to be added to the dictionary.

This function only accepts key_value strings in the general format of "Key: Value".

Returns

On success, the return value is zero. If the key already exists in the dictionary, KEY_EXISTS is returned; if the format of key_value is illegal, ILLEGAL_FORMAL is returned.

int dictionary_remove	(	dictionary_t *	d,
		const char *	key
	)

Removes the (key, value) entry from the dictionary.

Returns

0 on success or NO_KEY_EXISTS if the key was not present in the dictionary. This function does not free the memory used by key or value.