intern.c File Reference

Library for pooling common strings. More...

#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <wchar.h>
#include <unistd.h>
#include "fallback.h"
#include "util.h"
#include "wutil.h"
#include "common.h"
#include "intern.h"

Functions
const wchar_t *	intern (const wchar_t *in)
	Return an identical copy of the specified string from a pool of unique strings.
const wchar_t *	intern_static (const wchar_t *in)
	Insert the specified string literal into the pool of unique strings.
static void	clear_value (void *key, void *data)
	Free the specified key/value pair.
void	intern_free_all ()
	Free all interned strings.
Variables
static hash_table_t *	intern_table = 0
	Table of interned strings.
static hash_table_t *	intern_static_table = 0
	Table of static interned strings.

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Detailed Description

Library for pooling common strings.

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Function Documentation

static void clear_value	(	void *	key,
		void *	data
	)			[static]

Free the specified key/value pair.

Should only be called by intern_free_all at shutdown

References debug().

Referenced by intern_free_all().

const wchar_t* intern

(

const wchar_t *

in

)

Return an identical copy of the specified string from a pool of unique strings.

If the string was not in the pool, add a copy.

Parameters:

in

the string to return an interned copy of

References DIE_MEM, hash_get(), hash_init(), hash_put(), hash_wcs_cmp(), and hash_wcs_func().

Referenced by autoload_names(), builtin_source(), complete_get_exact_entry(), function_add(), history_create_mode(), input_mapping_add(), main(), parse_util_load_internal(), and parser_push_block().

void intern_free_all

(

)

Free all interned strings.

Only call this at shutdown.

References clear_value(), hash_destroy(), and hash_foreach().

Referenced by main().

const wchar_t* intern_static

(

const wchar_t *

in

)

Insert the specified string literal into the pool of unique strings.

The string will not first be copied, and it will not be free'd on exit.

Parameters:

in

the string to add to the interned pool

References DIE_MEM, hash_get(), hash_init(), hash_put(), hash_wcs_cmp(), and hash_wcs_func().

Referenced by builtin_init(), and builtin_source().