Export ExternalSstFileInfo and impl Send and Sync for Env (#165)

src/lib.rs

@@ -37,8 +37,8 @@ pub use librocksdb_sys::{self as crocksdb_ffi, new_bloom_filter, CompactionPrior
                          DBCompactionStyle, DBCompressionType, DBEntryType, DBInfoLogLevel,
                          DBRecoveryMode, DBStatisticsHistogramType, DBStatisticsTickerType};
 pub use merge_operator::MergeOperands;
-pub use rocksdb::{BackupEngine, CFHandle, DBIterator, DBVector, Env, Kv, Range, SeekKey,
-                  SequentialFile, SstFileWriter, Writable, WriteBatch, DB};
+pub use rocksdb::{BackupEngine, CFHandle, DBIterator, DBVector, Env, ExternalSstFileInfo, Kv,
+                  Range, SeekKey, SequentialFile, SstFileWriter, Writable, WriteBatch, DB};
 pub use rocksdb_options::{BlockBasedOptions, ColumnFamilyOptions, CompactOptions, DBOptions,
                           EnvOptions, FifoCompactionOptions, HistogramData,
                           IngestExternalFileOptions, RateLimiter, ReadOptions, RestoreOptions,

src/rocksdb.rs

@@ -1855,6 +1855,9 @@ pub struct Env {
     pub inner: *mut DBEnv,
 }
 
+unsafe impl Send for Env {}
+unsafe impl Sync for Env {}
+
 impl Default for Env {
     fn default() -> Env {
         unsafe {