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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
commit | e6918187568dbd01842d8d1d2c808ce16a894239 (patch) | |
tree | 64f88b554b444a49f656b6c656111a145cbbaa28 /src/rocksdb/db/trim_history_scheduler.cc | |
parent | Initial commit. (diff) | |
download | ceph-b26c4052f3542036551aa9dec9caa4226e456195.tar.xz ceph-b26c4052f3542036551aa9dec9caa4226e456195.zip |
Adding upstream version 18.2.2.upstream/18.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/rocksdb/db/trim_history_scheduler.cc | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/src/rocksdb/db/trim_history_scheduler.cc b/src/rocksdb/db/trim_history_scheduler.cc new file mode 100644 index 000000000..d7ca0899f --- /dev/null +++ b/src/rocksdb/db/trim_history_scheduler.cc @@ -0,0 +1,54 @@ +// 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 "db/trim_history_scheduler.h" + +#include <cassert> + +#include "db/column_family.h" + +namespace ROCKSDB_NAMESPACE { + +void TrimHistoryScheduler::ScheduleWork(ColumnFamilyData* cfd) { + std::lock_guard<std::mutex> lock(checking_mutex_); + cfd->Ref(); + cfds_.push_back(cfd); + is_empty_.store(false, std::memory_order_relaxed); +} + +ColumnFamilyData* TrimHistoryScheduler::TakeNextColumnFamily() { + std::lock_guard<std::mutex> lock(checking_mutex_); + while (true) { + if (cfds_.empty()) { + return nullptr; + } + ColumnFamilyData* cfd = cfds_.back(); + cfds_.pop_back(); + if (cfds_.empty()) { + is_empty_.store(true, std::memory_order_relaxed); + } + + if (!cfd->IsDropped()) { + // success + return cfd; + } + cfd->UnrefAndTryDelete(); + } +} + +bool TrimHistoryScheduler::Empty() { + bool is_empty = is_empty_.load(std::memory_order_relaxed); + return is_empty; +} + +void TrimHistoryScheduler::Clear() { + ColumnFamilyData* cfd; + while ((cfd = TakeNextColumnFamily()) != nullptr) { + cfd->UnrefAndTryDelete(); + } + assert(Empty()); +} + +} // namespace ROCKSDB_NAMESPACE |