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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 rephist.h
* \brief Header file for rephist.c.
**/
#ifndef TOR_REPHIST_H
#define TOR_REPHIST_H
void rep_hist_init(void);
void rep_hist_dump_stats(time_t now, int severity);
void rep_hist_note_bytes_read(uint64_t num_bytes, time_t when);
void rep_hist_note_bytes_written(uint64_t num_bytes, time_t when);
void rep_hist_make_router_pessimal(const char *id, time_t when);
void rep_hist_note_dir_bytes_read(uint64_t num_bytes, time_t when);
void rep_hist_note_dir_bytes_written(uint64_t num_bytes, time_t when);
MOCK_DECL(int, rep_hist_bandwidth_assess, (void));
char *rep_hist_get_bandwidth_lines(void);
void rep_hist_update_state(or_state_t *state);
int rep_hist_load_state(or_state_t *state, char **err);
void rep_history_clean(time_t before);
void rep_hist_note_router_reachable(const char *id, const tor_addr_t *at_addr,
const uint16_t at_port, time_t when);
void rep_hist_note_router_unreachable(const char *id, time_t when);
int rep_hist_record_mtbf_data(time_t now, int missing_means_down);
int rep_hist_load_mtbf_data(time_t now);
time_t rep_hist_downrate_old_runs(time_t now);
long rep_hist_get_uptime(const char *id, time_t when);
double rep_hist_get_stability(const char *id, time_t when);
double rep_hist_get_weighted_fractional_uptime(const char *id, time_t when);
long rep_hist_get_weighted_time_known(const char *id, time_t when);
int rep_hist_have_measured_enough_stability(void);
void rep_hist_exit_stats_init(time_t now);
void rep_hist_reset_exit_stats(time_t now);
void rep_hist_exit_stats_term(void);
char *rep_hist_format_exit_stats(time_t now);
time_t rep_hist_exit_stats_write(time_t now);
void rep_hist_note_exit_bytes(uint16_t port, size_t num_written,
size_t num_read);
void rep_hist_note_exit_stream_opened(uint16_t port);
void rep_hist_buffer_stats_init(time_t now);
void rep_hist_buffer_stats_add_circ(circuit_t *circ,
time_t end_of_interval);
time_t rep_hist_buffer_stats_write(time_t now);
void rep_hist_buffer_stats_term(void);
void rep_hist_add_buffer_stats(double mean_num_cells_in_queue,
double mean_time_cells_in_queue, uint32_t processed_cells);
char *rep_hist_format_buffer_stats(time_t now);
void rep_hist_reset_buffer_stats(time_t now);
void rep_hist_desc_stats_init(time_t now);
void rep_hist_note_desc_served(const char * desc);
void rep_hist_desc_stats_term(void);
time_t rep_hist_desc_stats_write(time_t now);
void rep_hist_conn_stats_init(time_t now);
void rep_hist_note_or_conn_bytes(uint64_t conn_id, size_t num_read,
size_t num_written, time_t when);
void rep_hist_reset_conn_stats(time_t now);
char *rep_hist_format_conn_stats(time_t now);
time_t rep_hist_conn_stats_write(time_t now);
void rep_hist_conn_stats_term(void);
void rep_hist_note_circuit_handshake_requested(uint16_t type);
void rep_hist_note_circuit_handshake_assigned(uint16_t type);
void rep_hist_log_circuit_handshake_stats(time_t now);
void rep_hist_hs_stats_init(time_t now);
void rep_hist_hs_stats_term(void);
time_t rep_hist_hs_stats_write(time_t now);
char *rep_hist_get_hs_stats_string(void);
void rep_hist_seen_new_rp_cell(void);
void rep_hist_stored_maybe_new_hs(const crypto_pk_t *pubkey);
void rep_hist_free_all(void);
void rep_hist_note_negotiated_link_proto(unsigned link_proto,
int started_here);
void rep_hist_log_link_protocol_counts(void);
extern uint64_t rephist_total_alloc;
extern uint32_t rephist_total_num;
#ifdef TOR_UNIT_TESTS
extern int onion_handshakes_requested[MAX_ONION_HANDSHAKE_TYPE+1];
extern int onion_handshakes_assigned[MAX_ONION_HANDSHAKE_TYPE+1];
extern struct bw_array_t *write_array;
#endif
#ifdef REPHIST_PRIVATE
typedef struct bw_array_t bw_array_t;
STATIC uint64_t find_largest_max(bw_array_t *b);
STATIC void commit_max(bw_array_t *b);
STATIC void advance_obs(bw_array_t *b);
#endif
/**
* Represents the type of a cell for padding accounting
*/
typedef enum padding_type_t {
/** A RELAY_DROP cell */
PADDING_TYPE_DROP,
/** A CELL_PADDING cell */
PADDING_TYPE_CELL,
/** Total counts of padding and non-padding together */
PADDING_TYPE_TOTAL,
/** Total cell counts for all padding-enabled channels */
PADDING_TYPE_ENABLED_TOTAL,
/** CELL_PADDING counts for all padding-enabled channels */
PADDING_TYPE_ENABLED_CELL
} padding_type_t;
/** The amount of time over which the padding cell counts were counted */
#define REPHIST_CELL_PADDING_COUNTS_INTERVAL (24*60*60)
void rep_hist_padding_count_read(padding_type_t type);
void rep_hist_padding_count_write(padding_type_t type);
char *rep_hist_get_padding_count_lines(void);
void rep_hist_reset_padding_counts(void);
void rep_hist_prep_published_padding_counts(time_t now);
void rep_hist_padding_count_timers(uint64_t num_timers);
#endif /* !defined(TOR_REPHIST_H) */
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