src/common/compat_libevent.h

   1 /* Copyright (c) 2009, The Tor Project, Inc. */
   2 /* See LICENSE for licensing information */
   3
   4 #ifndef _TOR_COMPAT_LIBEVENT_H
   5 #define _TOR_COMPAT_LIBEVENT_H
   6
   7 #include "orconfig.h"
   8
   9 struct event;
  10 struct event_base;
  11
  12
  13 #ifdef HAVE_EVENT2_EVENT_H
  14 #include <event2/util.h>
  15 #else
  16 #ifndef EVUTIL_SOCKET_DEFINED
  17 #define EVUTIL_SOCKET_DEFINED
  18 #define evutil_socket_t int
  19 #endif
  20 #endif
  21
  22 void configure_libevent_logging(void);
  23 void suppress_libevent_log_msg(const char *msg);
  24
  25 #ifdef HAVE_EVENT2_EVENT_H
  26 #define tor_event_new     event_new
  27 #define tor_evtimer_new   evtimer_new
  28 #define tor_evsignal_new  evsignal_new
  29 #define tor_event_free    event_free
  30 #define tor_evdns_add_server_port(sock, tcp, cb, data) \
  31   evdns_add_server_port_with_base(tor_libevent_get_base(), \
  32   (sock),(tcp),(cb),(data));
  33
  34 #else
  35 struct event *tor_event_new(struct event_base * base, evutil_socket_t sock,
  36            short what, void (*cb)(evutil_socket_t, short, void *), void *arg);
  37 struct event *tor_evtimer_new(struct event_base * base,
  38             void (*cb)(evutil_socket_t, short, void *), void *arg);
  39 struct event *tor_evsignal_new(struct event_base * base, int sig,
  40             void (*cb)(evutil_socket_t, short, void *), void *arg);
  41 void tor_event_free(struct event *ev);
  42 #define tor_evdns_add_server_port evdns_add_server_port
  43 #endif
  44
  45 typedef struct periodic_timer_t periodic_timer_t;
  46
  47 periodic_timer_t *periodic_timer_new(struct event_base *base,
  48              const struct timeval *tv,
  49              void (*cb)(periodic_timer_t *timer, void *data),
  50              void *data);
  51 void periodic_timer_free(periodic_timer_t *);
  52
  53 #ifdef HAVE_EVENT_BASE_LOOPEXIT
  54 #define tor_event_base_loopexit event_base_loopexit
  55 #else
  56 struct timeval;
  57 int tor_event_base_loopexit(struct event_base *base, struct timeval *tv);
  58 #endif
  59
  60 void tor_libevent_initialize(void);
  61 struct event_base *tor_libevent_get_base(void);
  62 const char *tor_libevent_get_method(void);
  63 void tor_check_libevent_version(const char *m, int server,
  64                                 const char **badness_out);
  65 void tor_check_libevent_header_compatibility(void);
  66 const char *tor_libevent_get_version_str(void);
  67
  68 #endif
  69