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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) 2007-2013, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file circuitlist.h
* \brief Header file for circuitlist.c.
**/
#ifndef TOR_CIRCUITLIST_H
#define TOR_CIRCUITLIST_H
#include "testsupport.h"
TOR_LIST_HEAD(global_circuitlist_s, circuit_t);
struct global_circuitlist_s* circuit_get_global_list(void);
const char *circuit_state_to_string(int state);
const char *circuit_purpose_to_controller_string(uint8_t purpose);
const char *circuit_purpose_to_controller_hs_state_string(uint8_t purpose);
const char *circuit_purpose_to_string(uint8_t purpose);
void circuit_dump_by_conn(connection_t *conn, int severity);
void circuit_dump_by_chan(channel_t *chan, int severity);
void circuit_set_p_circid_chan(or_circuit_t *circ, circid_t id,
channel_t *chan);
void circuit_set_n_circid_chan(circuit_t *circ, circid_t id,
channel_t *chan);
void channel_mark_circid_unusable(channel_t *chan, circid_t id);
void channel_mark_circid_usable(channel_t *chan, circid_t id);
void circuit_set_state(circuit_t *circ, uint8_t state);
void circuit_close_all_marked(void);
int32_t circuit_initial_package_window(void);
origin_circuit_t *origin_circuit_new(void);
or_circuit_t *or_circuit_new(circid_t p_circ_id, channel_t *p_chan);
circuit_t *circuit_get_by_circid_channel(circid_t circ_id,
channel_t *chan);
circuit_t *
circuit_get_by_circid_channel_even_if_marked(circid_t circ_id,
channel_t *chan);
int circuit_id_in_use_on_channel(circid_t circ_id, channel_t *chan);
circuit_t *circuit_get_by_edge_conn(edge_connection_t *conn);
void circuit_unlink_all_from_channel(channel_t *chan, int reason);
origin_circuit_t *circuit_get_by_global_id(uint32_t id);
origin_circuit_t *circuit_get_ready_rend_circ_by_rend_data(
const rend_data_t *rend_data);
origin_circuit_t *circuit_get_next_by_pk_and_purpose(origin_circuit_t *start,
const char *digest, uint8_t purpose);
or_circuit_t *circuit_get_rendezvous(const char *cookie);
or_circuit_t *circuit_get_intro_point(const char *digest);
origin_circuit_t *circuit_find_to_cannibalize(uint8_t purpose,
extend_info_t *info, int flags);
void circuit_mark_all_unused_circs(void);
void circuit_mark_all_dirty_circs_as_unusable(void);
void circuit_mark_for_close_(circuit_t *circ, int reason,
int line, const char *file);
int circuit_get_cpath_len(origin_circuit_t *circ);
crypt_path_t *circuit_get_cpath_hop(origin_circuit_t *circ, int hopnum);
void circuit_get_all_pending_on_channel(smartlist_t *out,
channel_t *chan);
int circuit_count_pending_on_channel(channel_t *chan);
#define circuit_mark_for_close(c, reason) \
circuit_mark_for_close_((c), (reason), __LINE__, SHORT_FILE__)
void assert_cpath_layer_ok(const crypt_path_t *cp);
void assert_circuit_ok(const circuit_t *c);
void circuit_free_all(void);
void circuits_handle_oom(size_t current_allocation);
void channel_note_destroy_pending(channel_t *chan, circid_t id);
void channel_note_destroy_not_pending(channel_t *chan, circid_t id);
#ifdef CIRCUITLIST_PRIVATE
STATIC void circuit_free(circuit_t *circ);
STATIC size_t n_cells_in_circ_queues(const circuit_t *c);
#endif
#endif
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