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/* Copyright (c) 2017, The Tor Project, Inc. */
/* See LICENSE for licensing information */
#ifndef TOR_CONSDIFFMGR_H
#define TOR_CONSDIFFMGR_H
/**
* Possible outcomes from trying to look up a given consensus diff.
*/
typedef enum consdiff_status_t {
CONSDIFF_AVAILABLE,
CONSDIFF_NOT_FOUND,
CONSDIFF_IN_PROGRESS,
} consdiff_status_t;
typedef struct consdiff_cfg_t {
uint32_t cache_max_age_hours;
uint32_t cache_max_num;
} consdiff_cfg_t;
struct consensus_cache_entry_t; // from conscache.h
int consdiffmgr_add_consensus(const char *consensus,
const networkstatus_t *as_parsed);
consdiff_status_t consdiffmgr_find_diff_from(
struct consensus_cache_entry_t **entry_out,
consensus_flavor_t flavor,
int digest_type,
const uint8_t *digest,
size_t digestlen);
void consdiffmgr_rescan(void);
int consdiffmgr_cleanup(void);
void consdiffmgr_configure(const consdiff_cfg_t *cfg);
void consdiffmgr_free_all(void);
#ifdef CONSDIFFMGR_PRIVATE
STATIC consensus_cache_t *cdm_cache_get(void);
STATIC consensus_cache_entry_t *cdm_cache_lookup_consensus(
consensus_flavor_t flavor, time_t valid_after);
#endif
#endif
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