Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 89 insertions, 0 deletions

diff --git a/src/rocksdb/java/rocksjni/writebatchhandlerjnicallback.h b/src/rocksdb/java/rocksjni/writebatchhandlerjnicallback.h
new file mode 100644
index 000000000..a4c61f8bd
--- /dev/null
+++ b/src/rocksdb/java/rocksjni/writebatchhandlerjnicallback.h
@@ -0,0 +1,89 @@
+// Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).
+//
+// This file implements the callback "bridge" between Java and C++ for
+// ROCKSDB_NAMESPACE::WriteBatch::Handler.
+
+#ifndef JAVA_ROCKSJNI_WRITEBATCHHANDLERJNICALLBACK_H_
+#define JAVA_ROCKSJNI_WRITEBATCHHANDLERJNICALLBACK_H_
+
+#include <functional>
+#include <jni.h>
+#include <memory>
+#include "rocksjni/jnicallback.h"
+#include "rocksdb/write_batch.h"
+
+namespace ROCKSDB_NAMESPACE {
+/**
+ * This class acts as a bridge between C++
+ * and Java. The methods in this class will be
+ * called back from the RocksDB storage engine (C++)
+ * which calls the appropriate Java method.
+ * This enables Write Batch Handlers to be implemented in Java.
+ */
+class WriteBatchHandlerJniCallback : public JniCallback, public WriteBatch::Handler {
+ public:
+    WriteBatchHandlerJniCallback(
+      JNIEnv* env, jobject jWriteBackHandler);
+    Status PutCF(uint32_t column_family_id, const Slice& key,
+        const Slice& value);
+    void Put(const Slice& key, const Slice& value);
+    Status MergeCF(uint32_t column_family_id, const Slice& key,
+        const Slice& value);
+    void Merge(const Slice& key, const Slice& value);
+    Status DeleteCF(uint32_t column_family_id, const Slice& key);
+    void Delete(const Slice& key);
+    Status SingleDeleteCF(uint32_t column_family_id, const Slice& key);
+    void SingleDelete(const Slice& key);
+    Status DeleteRangeCF(uint32_t column_family_id, const Slice& beginKey,
+        const Slice& endKey);
+    void DeleteRange(const Slice& beginKey, const Slice& endKey);
+    void LogData(const Slice& blob);
+    Status PutBlobIndexCF(uint32_t column_family_id, const Slice& key,
+                          const Slice& value);
+    Status MarkBeginPrepare(bool);
+    Status MarkEndPrepare(const Slice& xid);
+    Status MarkNoop(bool empty_batch);
+    Status MarkRollback(const Slice& xid);
+    Status MarkCommit(const Slice& xid);
+    bool Continue();
+
+ private:
+    JNIEnv* m_env;
+    jmethodID m_jPutCfMethodId;
+    jmethodID m_jPutMethodId;
+    jmethodID m_jMergeCfMethodId;
+    jmethodID m_jMergeMethodId;
+    jmethodID m_jDeleteCfMethodId;
+    jmethodID m_jDeleteMethodId;
+    jmethodID m_jSingleDeleteCfMethodId;
+    jmethodID m_jSingleDeleteMethodId;
+    jmethodID m_jDeleteRangeCfMethodId;
+    jmethodID m_jDeleteRangeMethodId;
+    jmethodID m_jLogDataMethodId;
+    jmethodID m_jPutBlobIndexCfMethodId;
+    jmethodID m_jMarkBeginPrepareMethodId;
+    jmethodID m_jMarkEndPrepareMethodId;
+    jmethodID m_jMarkNoopMethodId;
+    jmethodID m_jMarkRollbackMethodId;
+    jmethodID m_jMarkCommitMethodId;
+    jmethodID m_jContinueMethodId;
+    /**
+     * @return A pointer to a ROCKSDB_NAMESPACE::Status or nullptr if an
+     * unexpected exception occurred
+     */
+    std::unique_ptr<ROCKSDB_NAMESPACE::Status> kv_op(
+        const Slice& key, const Slice& value,
+        std::function<void(jbyteArray, jbyteArray)> kvFn);
+    /**
+     * @return A pointer to a ROCKSDB_NAMESPACE::Status or nullptr if an
+     * unexpected exception occurred
+     */
+    std::unique_ptr<ROCKSDB_NAMESPACE::Status> k_op(
+        const Slice& key, std::function<void(jbyteArray)> kFn);
+};
+}  // namespace ROCKSDB_NAMESPACE
+
+#endif  // JAVA_ROCKSJNI_WRITEBATCHHANDLERJNICALLBACK_H_