mirror of
https://github.com/facebook/rocksdb.git
synced 2024-11-28 05:43:50 +00:00
4e60663b31
Summary: In C++, `extern` is redundant in a number of cases: * "Global" function declarations and definitions * "Global" variable definitions when already declared `extern` For consistency and simplicity, I've removed these in code that *we own*. In a couple of cases, I removed obsolete declarations, and for MagicNumber constants, I have consolidated the declarations into a header file (format.h) as standard best practice would prescribe. Pull Request resolved: https://github.com/facebook/rocksdb/pull/12300 Test Plan: no functional changes, CI Reviewed By: ajkr Differential Revision: D53148629 Pulled By: pdillinger fbshipit-source-id: fb8d927959892e03af09b0c0d542b0a3b38fd886
37 lines
1.4 KiB
C++
37 lines
1.4 KiB
C++
// 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).
|
|
//
|
|
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file. See the AUTHORS file for names of contributors.
|
|
#pragma once
|
|
|
|
#include "rocksdb/advanced_cache.h"
|
|
#include "rocksdb/table.h"
|
|
|
|
namespace ROCKSDB_NAMESPACE {
|
|
class Footer;
|
|
|
|
// Release the cached entry and decrement its ref count.
|
|
void ForceReleaseCachedEntry(void* arg, void* h);
|
|
|
|
inline MemoryAllocator* GetMemoryAllocator(
|
|
const BlockBasedTableOptions& table_options) {
|
|
return table_options.block_cache.get()
|
|
? table_options.block_cache->memory_allocator()
|
|
: nullptr;
|
|
}
|
|
|
|
// Assumes block has a trailer past `data + block_size` as in format.h.
|
|
// `file_name` provided for generating diagnostic message in returned status.
|
|
// `offset` might be required for proper verification (also used for message).
|
|
//
|
|
// Returns Status::OK() on checksum match, or Status::Corruption() on checksum
|
|
// mismatch.
|
|
Status VerifyBlockChecksum(const Footer& footer, const char* data,
|
|
size_t block_size, const std::string& file_name,
|
|
uint64_t offset);
|
|
} // namespace ROCKSDB_NAMESPACE
|