mirror of
https://github.com/facebook/rocksdb.git
synced 2024-11-27 11:43:49 +00:00
fdf882ded2
Summary: When dynamically linking two binaries together, different builds of RocksDB from two sources might cause errors. To provide a tool for user to solve the problem, the RocksDB namespace is changed to a flag which can be overridden in build time. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6433 Test Plan: Build release, all and jtest. Try to build with ROCKSDB_NAMESPACE with another flag. Differential Revision: D19977691 fbshipit-source-id: aa7f2d0972e1c31d75339ac48478f34f6cfcfb3e
39 lines
1 KiB
C++
39 lines
1 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).
|
|
//
|
|
|
|
#pragma once
|
|
|
|
#include "rocksdb/memory_allocator.h"
|
|
|
|
namespace ROCKSDB_NAMESPACE {
|
|
|
|
struct CustomDeleter {
|
|
CustomDeleter(MemoryAllocator* a = nullptr) : allocator(a) {}
|
|
|
|
void operator()(char* ptr) const {
|
|
if (allocator) {
|
|
allocator->Deallocate(reinterpret_cast<void*>(ptr));
|
|
} else {
|
|
delete[] ptr;
|
|
}
|
|
}
|
|
|
|
MemoryAllocator* allocator;
|
|
};
|
|
|
|
using CacheAllocationPtr = std::unique_ptr<char[], CustomDeleter>;
|
|
|
|
inline CacheAllocationPtr AllocateBlock(size_t size,
|
|
MemoryAllocator* allocator) {
|
|
if (allocator) {
|
|
auto block = reinterpret_cast<char*>(allocator->Allocate(size));
|
|
return CacheAllocationPtr(block, allocator);
|
|
}
|
|
return CacheAllocationPtr(new char[size]);
|
|
}
|
|
|
|
} // namespace ROCKSDB_NAMESPACE
|