diff options
Diffstat (limited to 'src/common/compat_libevent.h')
| -rw-r--r-- | src/common/compat_libevent.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/common/compat_libevent.h b/src/common/compat_libevent.h index 39181efb7b..9530ca99d7 100644 --- a/src/common/compat_libevent.h +++ b/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 |