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-rw-r--r--src/common/compat_libevent.h54
1 files changed, 42 insertions, 12 deletions
diff --git a/src/common/compat_libevent.h b/src/common/compat_libevent.h
index 9ee7b49cfb..4b8b300112 100644
--- a/src/common/compat_libevent.h
+++ b/src/common/compat_libevent.h
@@ -1,10 +1,11 @@
-/* Copyright (c) 2009-2013, The Tor Project, Inc. */
+/* 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"
struct event;
struct event_base;
@@ -28,11 +29,9 @@ 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_event_free event_free
#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);
@@ -40,10 +39,11 @@ 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);
-void tor_event_free(struct event *ev);
#define tor_evdns_add_server_port evdns_add_server_port
#endif
+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,
@@ -52,12 +52,7 @@ periodic_timer_t *periodic_timer_new(struct event_base *base,
void *data);
void periodic_timer_free(periodic_timer_t *);
-#ifdef HAVE_EVENT_BASE_LOOPEXIT
#define tor_event_base_loopexit event_base_loopexit
-#else
-struct timeval;
-int tor_event_base_loopexit(struct event_base *base, struct timeval *tv);
-#endif
/** Defines a configuration for using libevent with Tor: passed as an argument
* to tor_libevent_initialize() to describe how we want to set up. */
@@ -72,10 +67,8 @@ typedef struct tor_libevent_cfg {
} tor_libevent_cfg;
void tor_libevent_initialize(tor_libevent_cfg *cfg);
-struct event_base *tor_libevent_get_base(void);
+MOCK_DECL(struct event_base *, tor_libevent_get_base, (void));
const char *tor_libevent_get_method(void);
-void tor_check_libevent_version(const char *m, int server,
- const char **badness_out);
void tor_check_libevent_header_compatibility(void);
const char *tor_libevent_get_version_str(void);
const char *tor_libevent_get_header_version_str(void);
@@ -98,5 +91,42 @@ void tor_gettimeofday_cache_set(const struct timeval *tv);
#endif
void tor_gettimeofday_cached_monotonic(struct timeval *tv);
+#ifdef COMPAT_LIBEVENT_PRIVATE
+/** A number representing a version of Libevent.
+
+ This is 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. 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.
+*/
+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