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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
commit | e6918187568dbd01842d8d1d2c808ce16a894239 (patch) | |
tree | 64f88b554b444a49f656b6c656111a145cbbaa28 /src/rocksdb/java/rocksjni/lru_cache.cc | |
parent | Initial commit. (diff) | |
download | ceph-e6918187568dbd01842d8d1d2c808ce16a894239.tar.xz ceph-e6918187568dbd01842d8d1d2c808ce16a894239.zip |
Adding upstream version 18.2.2.upstream/18.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/rocksdb/java/rocksjni/lru_cache.cc | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/rocksdb/java/rocksjni/lru_cache.cc b/src/rocksdb/java/rocksjni/lru_cache.cc new file mode 100644 index 000000000..56dffa2f0 --- /dev/null +++ b/src/rocksdb/java/rocksjni/lru_cache.cc @@ -0,0 +1,49 @@ +// 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 "bridge" between Java and C++ for +// ROCKSDB_NAMESPACE::LRUCache. + +#include "cache/lru_cache.h" + +#include <jni.h> + +#include "include/org_rocksdb_LRUCache.h" +#include "rocksjni/cplusplus_to_java_convert.h" + +/* + * Class: org_rocksdb_LRUCache + * Method: newLRUCache + * Signature: (JIZD)J + */ +jlong Java_org_rocksdb_LRUCache_newLRUCache(JNIEnv* /*env*/, jclass /*jcls*/, + jlong jcapacity, + jint jnum_shard_bits, + jboolean jstrict_capacity_limit, + jdouble jhigh_pri_pool_ratio, + jdouble jlow_pri_pool_ratio) { + auto* sptr_lru_cache = new std::shared_ptr<ROCKSDB_NAMESPACE::Cache>( + ROCKSDB_NAMESPACE::NewLRUCache( + static_cast<size_t>(jcapacity), static_cast<int>(jnum_shard_bits), + static_cast<bool>(jstrict_capacity_limit), + static_cast<double>(jhigh_pri_pool_ratio), + nullptr /* memory_allocator */, rocksdb::kDefaultToAdaptiveMutex, + rocksdb::kDefaultCacheMetadataChargePolicy, + static_cast<double>(jlow_pri_pool_ratio))); + return GET_CPLUSPLUS_POINTER(sptr_lru_cache); +} + +/* + * Class: org_rocksdb_LRUCache + * Method: disposeInternal + * Signature: (J)V + */ +void Java_org_rocksdb_LRUCache_disposeInternal(JNIEnv* /*env*/, + jobject /*jobj*/, + jlong jhandle) { + auto* sptr_lru_cache = + reinterpret_cast<std::shared_ptr<ROCKSDB_NAMESPACE::Cache>*>(jhandle); + delete sptr_lru_cache; // delete std::shared_ptr +} |