mirror of https://github.com/facebook/rocksdb.git
62 lines
2.0 KiB
C++
62 lines
2.0 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under the BSD-style license found in the
|
|
// LICENSE file in the root directory of this source tree. An additional grant
|
|
// of patent rights can be found in the PATENTS file in the same directory.
|
|
// This source code is also licensed under the GPLv2 license found in the
|
|
// COPYING file in the root directory of this source tree.
|
|
//
|
|
// 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 <assert.h>
|
|
#include "rocksdb/write_buffer_manager.h"
|
|
#include "util/allocator.h"
|
|
#include "util/arena.h"
|
|
|
|
namespace rocksdb {
|
|
|
|
AllocTracker::AllocTracker(WriteBufferManager* write_buffer_manager)
|
|
: write_buffer_manager_(write_buffer_manager),
|
|
bytes_allocated_(0),
|
|
done_allocating_(false),
|
|
freed_(false) {}
|
|
|
|
AllocTracker::~AllocTracker() { FreeMem(); }
|
|
|
|
void AllocTracker::Allocate(size_t bytes) {
|
|
assert(write_buffer_manager_ != nullptr);
|
|
if (write_buffer_manager_->enabled()) {
|
|
bytes_allocated_.fetch_add(bytes, std::memory_order_relaxed);
|
|
write_buffer_manager_->ReserveMem(bytes);
|
|
}
|
|
}
|
|
|
|
void AllocTracker::DoneAllocating() {
|
|
if (write_buffer_manager_ != nullptr && !done_allocating_) {
|
|
if (write_buffer_manager_->enabled()) {
|
|
write_buffer_manager_->ScheduleFreeMem(
|
|
bytes_allocated_.load(std::memory_order_relaxed));
|
|
} else {
|
|
assert(bytes_allocated_.load(std::memory_order_relaxed) == 0);
|
|
}
|
|
done_allocating_ = true;
|
|
}
|
|
}
|
|
|
|
void AllocTracker::FreeMem() {
|
|
if (!done_allocating_) {
|
|
DoneAllocating();
|
|
}
|
|
if (write_buffer_manager_ != nullptr && !freed_) {
|
|
if (write_buffer_manager_->enabled()) {
|
|
write_buffer_manager_->FreeMem(
|
|
bytes_allocated_.load(std::memory_order_relaxed));
|
|
} else {
|
|
assert(bytes_allocated_.load(std::memory_order_relaxed) == 0);
|
|
}
|
|
freed_ = true;
|
|
}
|
|
}
|
|
} // namespace rocksdb
|