Mappings between identifiers and 16-bit ints. More...

#include "orconfig.h"
#include "lib/container/smartlist.h"
#include "lib/container/namemap.h"
#include "lib/container/namemap_st.h"
#include "lib/log/util_bug.h"
#include "lib/malloc/malloc.h"
#include "lib/string/printf.h"
#include "ext/siphash.h"
#include <string.h>

Functions
static int	mapped_name_eq (const mapped_name_t a, const mapped_name_t b)

static unsigned	mapped_name_hash (const mapped_name_t *a)

	HT_PROTOTYPE (namemap_ht, mapped_name_t, node, mapped_name_hash, mapped_name_eq)

	HT_GENERATE2 (namemap_ht, mapped_name_t, node, mapped_name_hash, mapped_name_eq, 0.6, tor_reallocarray_, tor_free_)

void	namemap_init (namemap_t *map)

const char *	namemap_get_name (const namemap_t *map, unsigned id)

const char *	namemap_fmt_name (const namemap_t *map, unsigned id)

static unsigned	namemap_get_id_unchecked (const namemap_t map, const char name, size_t namelen)

unsigned	namemap_get_id (const namemap_t map, const char name)

unsigned	namemap_get_or_create_id (namemap_t map, const char name)

size_t	namemap_get_size (const namemap_t *map)

void	namemap_clear (namemap_t *map)

Detailed Description

Mappings between identifiers and 16-bit ints.

Definition in file namemap.c.

Function Documentation

◆ mapped_name_eq()

static int mapped_name_eq	(	const mapped_name_t *	a,
		const mapped_name_t *	b
	)

inlinestatic

Helper for namemap hashtable implementation: compare two entries.

Definition at line 25 of file namemap.c.

◆ mapped_name_hash()

static unsigned mapped_name_hash ( const mapped_name_t * a )

inlinestatic

Helper for namemap hashtable implementation: hash an entry.

Definition at line 32 of file namemap.c.

◆ namemap_clear()

void namemap_clear ( namemap_t * map )

Release all storage held in map.

Definition at line 177 of file namemap.c.

◆ namemap_fmt_name()

const char* namemap_fmt_name	(	const namemap_t *	map,
		unsigned	id
	)

Return the name that map associates with a given id, or a pointer to a statically allocated string describing the value of id if no such name exists.

Definition at line 70 of file namemap.c.

◆ namemap_get_id()

unsigned namemap_get_id	(	const namemap_t *	map,
		const char *	name
	)

Return the identifier currently associated by map with the name name, or NAMEMAP_ERR if no such identifier exists.

Definition at line 114 of file namemap.c.

◆ namemap_get_id_unchecked()

static unsigned namemap_get_id_unchecked	(	const namemap_t *	map,
		const char *	name,
		size_t	namelen
	)

static

Helper: As namemap_get_id(), but requires that name is namelen characters long, and that namelen is no more than MAX_NAMEMAP_NAME_LEN.

Definition at line 89 of file namemap.c.

Referenced by namemap_get_id().

◆ namemap_get_name()

const char* namemap_get_name	(	const namemap_t *	map,
		unsigned	id
	)

Return the name that map associates with a given id, or NULL if there is no such name.

Definition at line 54 of file namemap.c.

Referenced by namemap_fmt_name().

◆ namemap_get_or_create_id()

unsigned namemap_get_or_create_id	(	namemap_t *	map,
		const char *	name
	)

Return the identifier associated by map with the name name, allocating a new identifier in map if none exists.

Return NAMEMAP_ERR if name is too long, or if there are no more identifiers we can allocate.

Definition at line 133 of file namemap.c.

◆ namemap_get_size()

size_t namemap_get_size ( const namemap_t * map )

Return the number of entries in 'names'

Definition at line 165 of file namemap.c.

◆ namemap_init()

void namemap_init ( namemap_t * map )

Set up an uninitialized map.

Definition at line 44 of file namemap.c.

Functions