Raise libevent dependency to 2.0.10-stable or newer

Only some very ancient distributions don't ship with Libevent 2 anymore,
even the oldest supported Ubuntu LTS version has it. This allows us to
get rid of a lot of compat code.

1 files changed, 1 insertions, 31 deletions

diff --git a/src/common/compat_libevent.h b/src/common/compat_libevent.h
index 4b8b300112..e46c2d5a65 100644
--- a/src/common/compat_libevent.h
+++ b/src/common/compat_libevent.h
@@ -15,32 +15,17 @@ struct ev_token_bucket_cfg;
 struct bufferevent_rate_limit_group;
 #endif
 
-#ifdef HAVE_EVENT2_EVENT_H
 #include <event2/util.h>
-#elif !defined(EVUTIL_SOCKET_DEFINED)
-#define EVUTIL_SOCKET_DEFINED
-#define evutil_socket_t int
-#endif
 
 void configure_libevent_logging(void);
 void suppress_libevent_log_msg(const char *msg);
 
-#ifdef HAVE_EVENT2_EVENT_H
 #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));
-#else
-struct event *tor_event_new(struct event_base * base, evutil_socket_t sock,
-           short what, void (*cb)(evutil_socket_t, short, void *), void *arg);
-struct event *tor_evtimer_new(struct event_base * base,
-            void (*cb)(evutil_socket_t, short, void *), void *arg);
-struct event *tor_evsignal_new(struct event_base * base, int sig,
-            void (*cb)(evutil_socket_t, short, void *), void *arg);
-#define tor_evdns_add_server_port evdns_add_server_port
-#endif
 
 void tor_event_free(struct event *ev);
 
@@ -99,9 +84,7 @@ void tor_gettimeofday_cached_monotonic(struct timeval *tv);
     byte is unused.
 
     This is equivalent to the format of LIBEVENT_VERSION_NUMBER on Libevent
-    2.0.1 or later.  For versions of Libevent before 1.4.0, which followed the
-    format of "1.0, 1.0a, 1.0b", we define 1.0 to be equivalent to 1.0.0, 1.0a
-    to be equivalent to 1.0.1, and so on.
+    2.0.1 or later.
 */
 typedef uint32_t le_version_t;
 
@@ -109,23 +92,10 @@ typedef uint32_t le_version_t;
 /** Macros: returns the number of a libevent version as a le_version_t */
 #define V(major, minor, patch) \
   (((major) << 24) | ((minor) << 16) | ((patch) << 8))
-#define V_OLD(major, minor, patch) \
-  V((major), (minor), (patch)-'a'+1)
 /** @} */
 
-/** Represetns a version of libevent so old we can't figure out what version
- * it is. */
-#define LE_OLD V(0,0,0)
-/** Represents a version of libevent so weird we can't figure out what version
- * it is. */
-#define LE_OTHER V(0,0,99)
-
 STATIC void
 libevent_logging_callback(int severity, const char *msg);
-STATIC le_version_t
-tor_decode_libevent_version(const char *v);
-STATIC int
-le_versions_compatibility(le_version_t v);
 #endif
 
 #endif