fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
64 lines
2.3 KiB
64 lines
2.3 KiB
// 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.
|
|
#include "table/block_based/reader_common.h"
|
|
|
|
#include "monitoring/perf_context_imp.h"
|
|
#include "util/coding.h"
|
|
#include "util/crc32c.h"
|
|
#include "util/hash.h"
|
|
#include "util/string_util.h"
|
|
#include "util/xxhash.h"
|
|
|
|
namespace ROCKSDB_NAMESPACE {
|
|
void ForceReleaseCachedEntry(void* arg, void* h) {
|
|
Cache* cache = reinterpret_cast<Cache*>(arg);
|
|
Cache::Handle* handle = reinterpret_cast<Cache::Handle*>(h);
|
|
cache->Release(handle, true /* force_erase */);
|
|
}
|
|
|
|
Status VerifyBlockChecksum(ChecksumType type, const char* data,
|
|
size_t block_size, const std::string& file_name,
|
|
uint64_t offset) {
|
|
PERF_TIMER_GUARD(block_checksum_time);
|
|
// After block_size bytes is compression type (1 byte), which is part of
|
|
// the checksummed section.
|
|
size_t len = block_size + 1;
|
|
// And then the stored checksum value (4 bytes).
|
|
uint32_t stored = DecodeFixed32(data + len);
|
|
|
|
Status s;
|
|
uint32_t computed = 0;
|
|
switch (type) {
|
|
case kNoChecksum:
|
|
break;
|
|
case kCRC32c:
|
|
stored = crc32c::Unmask(stored);
|
|
computed = crc32c::Value(data, len);
|
|
break;
|
|
case kxxHash:
|
|
computed = XXH32(data, len, 0);
|
|
break;
|
|
case kxxHash64:
|
|
computed = Lower32of64(XXH64(data, len, 0));
|
|
break;
|
|
default:
|
|
s = Status::Corruption(
|
|
"unknown checksum type " + ToString(type) + " from footer of " +
|
|
file_name + ", while checking block at offset " + ToString(offset) +
|
|
" size " + ToString(block_size));
|
|
}
|
|
if (s.ok() && stored != computed) {
|
|
s = Status::Corruption(
|
|
"block checksum mismatch: stored = " + ToString(stored) +
|
|
", computed = " + ToString(computed) + " in " + file_name +
|
|
" offset " + ToString(offset) + " size " + ToString(block_size));
|
|
}
|
|
return s;
|
|
}
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
|