fix ci error about test_event_listener_basic

Signed-off-by: fredchenbj <[email protected]>

Author: fredbjer

librocksdb_sys/src/lib.rs

@@ -151,6 +151,8 @@ pub struct DBWriteStallInfo(c_void);
 pub struct DBStatusPtr(c_void);
 #[repr(C)]
 pub struct DBMapProperty(c_void);
+#[repr(C)]
+pub struct DBCompactionReason(c_void);
 
 #[derive(Copy, Clone, Debug, Eq, PartialEq)]
 #[repr(C)]
@@ -1774,7 +1776,7 @@ extern "C" {
     pub fn crocksdb_compactionjobinfo_total_output_bytes(info: *const DBCompactionJobInfo) -> u64;
     pub fn crocksdb_compactionjobinfo_compaction_reason(
         info: *const DBCompactionJobInfo,
-    ) -> CompactionReason;
+    ) -> *const DBCompactionReason;
 
     pub fn crocksdb_externalfileingestioninfo_cf_name(
         info: *const DBIngestionInfo,

src/event_listener.rs

@@ -126,7 +126,10 @@ impl CompactionJobInfo {
     }
 
     pub fn compaction_reason(&self) -> CompactionReason {
-        unsafe { crocksdb_ffi::crocksdb_compactionjobinfo_compaction_reason(&self.0) }
+        unsafe {
+            *(crocksdb_ffi::crocksdb_compactionjobinfo_compaction_reason(&self.0)
+                as *const CompactionReason)
+        }
     }
 }