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/* Copyright (c) 2001 Matej Pfajfar.
* Copyright (c) 2001-2004, Roger Dingledine.
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2019, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file dircollate.h
* \brief Header file for dircollate.c.
**/
#ifndef TOR_DIRCOLLATE_H
#define TOR_DIRCOLLATE_H
#include "lib/testsupport/testsupport.h"
#include "core/or/or.h"
typedef struct dircollator_s dircollator_t;
dircollator_t *dircollator_new(int n_votes, int n_authorities);
void dircollator_free_(dircollator_t *obj);
#define dircollator_free(c) \
FREE_AND_NULL(dircollator_t, dircollator_free_, (c))
void dircollator_add_vote(dircollator_t *dc, networkstatus_t *v);
void dircollator_collate(dircollator_t *dc, int consensus_method);
int dircollator_n_routers(dircollator_t *dc);
vote_routerstatus_t **dircollator_get_votes_for_router(dircollator_t *dc,
int idx);
#ifdef DIRCOLLATE_PRIVATE
struct ddmap_entry_s;
typedef HT_HEAD(double_digest_map, ddmap_entry_s) double_digest_map_t;
/** A dircollator keeps track of all the routerstatus entries in a
* set of networkstatus votes, and matches them by an appropriate rule. */
struct dircollator_s {
/** True iff we have run the collation algorithm. */
int is_collated;
/** The total number of votes that we received. */
int n_votes;
/** The total number of authorities we acknowledge. */
int n_authorities;
/** The index which the next vote to be added to this collator should
* receive. */
int next_vote_num;
/** Map from RSA-SHA1 identity digest to an array of <b>n_votes</b>
* vote_routerstatus_t* pointers, such that the i'th member of the
* array is the i'th vote's entry for that RSA-SHA1 ID.*/
digestmap_t *by_rsa_sha1;
/** Map from <ed, RSA-SHA1> pair to an array similar to that used in
* by_rsa_sha1 above. We include <NULL,RSA-SHA1> entries for votes that
* say that there is no Ed key. */
struct double_digest_map by_both_ids;
/** One of two outputs created by collation: a map from RSA-SHA1
* identity digest to an array of the vote_routerstatus_t objects. Entries
* only exist in this map for identities that we should include in the
* consensus. */
digestmap_t *by_collated_rsa_sha1;
/** One of two outputs created by collation: a sorted array of RSA-SHA1
* identity digests .*/
smartlist_t *all_rsa_sha1_lst;
};
#endif /* defined(DIRCOLLATE_PRIVATE) */
#endif /* !defined(TOR_DIRCOLLATE_H) */
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