Add tests for compat_libevent

src/common/compat_libevent.c

@@ -11,6 +11,7 @@
 
 #include "orconfig.h"
 #include "compat.h"
+#define COMPAT_LIBEVENT_PRIVATE
 #include "compat_libevent.h"
 
 #include "crypto.h"
@@ -28,39 +29,11 @@
 #include <event.h>
 #endif
 
-/** 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)
-
 /** A string which, if it appears in a libevent log, should be ignored. */
 static const char *suppress_msg = NULL;
 /** Callback function passed to event_set_log() so we can intercept
  * log messages from libevent. */
-static void
+STATIC void
 libevent_logging_callback(int severity, const char *msg)
 {
   char buf[1024];
@@ -291,7 +264,7 @@ tor_libevent_get_method(void)
 /** Return the le_version_t for the version of libevent specified in the
  * string <b>v</b>.  If the version is very new or uses an unrecognized
  * version, format, return LE_OTHER. */
-static le_version_t
+STATIC le_version_t
 tor_decode_libevent_version(const char *v)
 {
   unsigned major, minor, patchlevel;
@@ -322,7 +295,7 @@ tor_decode_libevent_version(const char *v)
  * Two different versions with different numbers are sure not to be binary
  * compatible.  Two different versions with the same numbers have a decent
  * chance of binary compatibility.*/
-static int
+STATIC int
 le_versions_compatibility(le_version_t v)
 {
   if (v == LE_OTHER)
@@ -653,4 +626,3 @@ tor_gettimeofday_cached_monotonic(struct timeval *tv)
     memcpy(&last_tv, tv, sizeof(struct timeval));
   }
 }
-

src/common/compat_libevent.h

@@ -91,5 +91,43 @@ 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