tor/src/common/compat_libevent.h
2016-08-12 16:11:28 -04:00

76 lines
2.4 KiB
C

/* Copyright (c) 2009-2016, The Tor Project, Inc. */
/* See LICENSE for licensing information */
#ifndef TOR_COMPAT_LIBEVENT_H
#define TOR_COMPAT_LIBEVENT_H
#include "orconfig.h"
#include "testsupport.h"
#include <event2/event.h>
void configure_libevent_logging(void);
void suppress_libevent_log_msg(const char *msg);
#define tor_event_new event_new
#define tor_evtimer_new evtimer_new
#define tor_evsignal_new evsignal_new
#define tor_evdns_add_server_port(sock, tcp, cb, data) \
evdns_add_server_port_with_base(tor_libevent_get_base(), \
(sock),(tcp),(cb),(data));
void tor_event_free(struct event *ev);
typedef struct periodic_timer_t periodic_timer_t;
periodic_timer_t *periodic_timer_new(struct event_base *base,
const struct timeval *tv,
void (*cb)(periodic_timer_t *timer, void *data),
void *data);
void periodic_timer_free(periodic_timer_t *);
#define tor_event_base_loopexit event_base_loopexit
/** Defines a configuration for using libevent with Tor: passed as an argument
* to tor_libevent_initialize() to describe how we want to set up. */
typedef struct tor_libevent_cfg {
/** How many CPUs should we use (not currently useful). */
int num_cpus;
/** How many milliseconds should we allow between updating bandwidth limits?
* (Not currently useful). */
int msec_per_tick;
} tor_libevent_cfg;
void tor_libevent_initialize(tor_libevent_cfg *cfg);
MOCK_DECL(struct event_base *, tor_libevent_get_base, (void));
const char *tor_libevent_get_method(void);
void tor_check_libevent_header_compatibility(void);
const char *tor_libevent_get_version_str(void);
const char *tor_libevent_get_header_version_str(void);
int tor_init_libevent_rng(void);
void tor_gettimeofday_cached(struct timeval *tv);
void tor_gettimeofday_cache_clear(void);
#ifdef TOR_UNIT_TESTS
void tor_gettimeofday_cache_set(const struct timeval *tv);
#endif
#ifdef COMPAT_LIBEVENT_PRIVATE
/** Macro: returns the number of a Libevent version as a 4-byte number,
with the first three bytes representing the major, minor, and patchlevel
respectively of the library. The fourth byte is unused.
This is equivalent to the format of LIBEVENT_VERSION_NUMBER on Libevent
2.0.1 or later. */
#define V(major, minor, patch) \
(((major) << 24) | ((minor) << 16) | ((patch) << 8))
STATIC void
libevent_logging_callback(int severity, const char *msg);
#endif
#endif