| // 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). |
| |
| #include "util/sst_file_manager_impl.h" |
| |
| #include <vector> |
| |
| #include "port/port.h" |
| #include "rocksdb/env.h" |
| #include "rocksdb/sst_file_manager.h" |
| #include "util/mutexlock.h" |
| #include "util/sync_point.h" |
| |
| namespace rocksdb { |
| |
| #ifndef ROCKSDB_LITE |
| SstFileManagerImpl::SstFileManagerImpl(Env* env, std::shared_ptr<Logger> logger, |
| const std::string& trash_dir, |
| int64_t rate_bytes_per_sec) |
| : env_(env), |
| logger_(logger), |
| total_files_size_(0), |
| max_allowed_space_(0), |
| delete_scheduler_(env, trash_dir, rate_bytes_per_sec, logger.get(), |
| this) {} |
| |
| SstFileManagerImpl::~SstFileManagerImpl() {} |
| |
| Status SstFileManagerImpl::OnAddFile(const std::string& file_path) { |
| uint64_t file_size; |
| Status s = env_->GetFileSize(file_path, &file_size); |
| if (s.ok()) { |
| MutexLock l(&mu_); |
| OnAddFileImpl(file_path, file_size); |
| } |
| TEST_SYNC_POINT("SstFileManagerImpl::OnAddFile"); |
| return s; |
| } |
| |
| Status SstFileManagerImpl::OnDeleteFile(const std::string& file_path) { |
| { |
| MutexLock l(&mu_); |
| OnDeleteFileImpl(file_path); |
| } |
| TEST_SYNC_POINT("SstFileManagerImpl::OnDeleteFile"); |
| return Status::OK(); |
| } |
| |
| Status SstFileManagerImpl::OnMoveFile(const std::string& old_path, |
| const std::string& new_path, |
| uint64_t* file_size) { |
| { |
| MutexLock l(&mu_); |
| if (file_size != nullptr) { |
| *file_size = tracked_files_[old_path]; |
| } |
| OnAddFileImpl(new_path, tracked_files_[old_path]); |
| OnDeleteFileImpl(old_path); |
| } |
| TEST_SYNC_POINT("SstFileManagerImpl::OnMoveFile"); |
| return Status::OK(); |
| } |
| |
| void SstFileManagerImpl::SetMaxAllowedSpaceUsage(uint64_t max_allowed_space) { |
| MutexLock l(&mu_); |
| max_allowed_space_ = max_allowed_space; |
| } |
| |
| bool SstFileManagerImpl::IsMaxAllowedSpaceReached() { |
| MutexLock l(&mu_); |
| if (max_allowed_space_ <= 0) { |
| return false; |
| } |
| return total_files_size_ >= max_allowed_space_; |
| } |
| |
| uint64_t SstFileManagerImpl::GetTotalSize() { |
| MutexLock l(&mu_); |
| return total_files_size_; |
| } |
| |
| std::unordered_map<std::string, uint64_t> |
| SstFileManagerImpl::GetTrackedFiles() { |
| MutexLock l(&mu_); |
| return tracked_files_; |
| } |
| |
| int64_t SstFileManagerImpl::GetDeleteRateBytesPerSecond() { |
| return delete_scheduler_.GetRateBytesPerSecond(); |
| } |
| |
| void SstFileManagerImpl::SetDeleteRateBytesPerSecond(int64_t delete_rate) { |
| return delete_scheduler_.SetRateBytesPerSecond(delete_rate); |
| } |
| |
| Status SstFileManagerImpl::ScheduleFileDeletion(const std::string& file_path) { |
| return delete_scheduler_.DeleteFile(file_path); |
| } |
| |
| void SstFileManagerImpl::WaitForEmptyTrash() { |
| delete_scheduler_.WaitForEmptyTrash(); |
| } |
| |
| void SstFileManagerImpl::OnAddFileImpl(const std::string& file_path, |
| uint64_t file_size) { |
| auto tracked_file = tracked_files_.find(file_path); |
| if (tracked_file != tracked_files_.end()) { |
| // File was added before, we will just update the size |
| total_files_size_ -= tracked_file->second; |
| total_files_size_ += file_size; |
| } else { |
| total_files_size_ += file_size; |
| } |
| tracked_files_[file_path] = file_size; |
| } |
| |
| void SstFileManagerImpl::OnDeleteFileImpl(const std::string& file_path) { |
| auto tracked_file = tracked_files_.find(file_path); |
| if (tracked_file == tracked_files_.end()) { |
| // File is not tracked |
| return; |
| } |
| |
| total_files_size_ -= tracked_file->second; |
| tracked_files_.erase(tracked_file); |
| } |
| |
| SstFileManager* NewSstFileManager(Env* env, std::shared_ptr<Logger> info_log, |
| std::string trash_dir, |
| int64_t rate_bytes_per_sec, |
| bool delete_existing_trash, Status* status) { |
| SstFileManagerImpl* res = |
| new SstFileManagerImpl(env, info_log, trash_dir, rate_bytes_per_sec); |
| |
| Status s; |
| if (trash_dir != "") { |
| s = env->CreateDirIfMissing(trash_dir); |
| if (s.ok() && delete_existing_trash) { |
| std::vector<std::string> files_in_trash; |
| s = env->GetChildren(trash_dir, &files_in_trash); |
| if (s.ok()) { |
| for (const std::string& trash_file : files_in_trash) { |
| if (trash_file == "." || trash_file == "..") { |
| continue; |
| } |
| |
| std::string path_in_trash = trash_dir + "/" + trash_file; |
| res->OnAddFile(path_in_trash); |
| Status file_delete = res->ScheduleFileDeletion(path_in_trash); |
| if (s.ok() && !file_delete.ok()) { |
| s = file_delete; |
| } |
| } |
| } |
| } |
| } |
| |
| if (status) { |
| *status = s; |
| } |
| |
| return res; |
| } |
| |
| #else |
| |
| SstFileManager* NewSstFileManager(Env* env, std::shared_ptr<Logger> info_log, |
| std::string trash_dir, |
| int64_t rate_bytes_per_sec, |
| bool delete_existing_trash, Status* status) { |
| if (status) { |
| *status = |
| Status::NotSupported("SstFileManager is not supported in ROCKSDB_LITE"); |
| } |
| return nullptr; |
| } |
| |
| #endif // ROCKSDB_LITE |
| |
| } // namespace rocksdb |
| |