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75 lines
2.8 KiB
C
75 lines
2.8 KiB
C
/* Copyright (c) 2017, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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#ifndef TOR_CONSDIFFMGR_H
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#define TOR_CONSDIFFMGR_H
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/**
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* Possible outcomes from trying to look up a given consensus diff.
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*/
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typedef enum consdiff_status_t {
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CONSDIFF_AVAILABLE,
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CONSDIFF_NOT_FOUND,
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CONSDIFF_IN_PROGRESS,
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} consdiff_status_t;
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typedef struct consdiff_cfg_t {
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int32_t cache_max_num;
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} consdiff_cfg_t;
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struct consensus_cache_entry_t; // from conscache.h
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int consdiffmgr_add_consensus(const char *consensus,
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const networkstatus_t *as_parsed);
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consdiff_status_t consdiffmgr_find_consensus(
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struct consensus_cache_entry_t **entry_out,
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consensus_flavor_t flavor,
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compress_method_t method);
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consdiff_status_t consdiffmgr_find_diff_from(
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struct consensus_cache_entry_t **entry_out,
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consensus_flavor_t flavor,
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int digest_type,
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const uint8_t *digest,
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size_t digestlen,
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compress_method_t method);
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int consensus_cache_entry_get_voter_id_digests(
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const struct consensus_cache_entry_t *ent,
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smartlist_t *out);
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int consensus_cache_entry_get_fresh_until(
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const struct consensus_cache_entry_t *ent,
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time_t *out);
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int consensus_cache_entry_get_valid_until(
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const struct consensus_cache_entry_t *ent,
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time_t *out);
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int consensus_cache_entry_get_valid_after(
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const struct consensus_cache_entry_t *ent,
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time_t *out);
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void consdiffmgr_rescan(void);
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int consdiffmgr_cleanup(void);
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void consdiffmgr_enable_background_compression(void);
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void consdiffmgr_configure(const consdiff_cfg_t *cfg);
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struct sandbox_cfg_elem;
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int consdiffmgr_register_with_sandbox(struct sandbox_cfg_elem **cfg);
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void consdiffmgr_free_all(void);
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int consdiffmgr_validate(void);
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#ifdef CONSDIFFMGR_PRIVATE
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STATIC unsigned n_diff_compression_methods(void);
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STATIC unsigned n_consensus_compression_methods(void);
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STATIC consensus_cache_t *cdm_cache_get(void);
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STATIC consensus_cache_entry_t *cdm_cache_lookup_consensus(
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consensus_flavor_t flavor, time_t valid_after);
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STATIC int cdm_entry_get_sha3_value(uint8_t *digest_out,
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consensus_cache_entry_t *ent,
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const char *label);
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STATIC int uncompress_or_copy(char **out, size_t *outlen,
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consensus_cache_entry_t *ent);
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#endif /* defined(CONSDIFFMGR_PRIVATE) */
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#endif /* !defined(TOR_CONSDIFFMGR_H) */
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