mirror of
https://github.com/ClickHouse/ClickHouse.git
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b79ead9c84
* Replicate poco into base/poco/ * De-register poco submodule * Build poco from ClickHouse * Exclude poco from stylecheck * Exclude poco from whitespace check * Exclude poco from typo check * Remove x bit from sources/headers (the style check complained) * Exclude poco from duplicate include check * Fix fasttest * Remove contrib/poco-cmake/* * Simplify poco build descriptions * Remove poco stuff not used by ClickHouse * Glob poco sources * Exclude poco from clang-tidy
155 lines
2.4 KiB
C++
155 lines
2.4 KiB
C++
//
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// PurgeStrategy.cpp
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//
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// Library: Foundation
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// Package: Logging
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// Module: FileChannel
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//
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// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#include "Poco/PurgeStrategy.h"
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#include "Poco/Path.h"
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#include "Poco/DirectoryIterator.h"
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#include "Poco/Timestamp.h"
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namespace Poco {
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//
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// PurgeStrategy
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//
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PurgeStrategy::PurgeStrategy()
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{
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}
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PurgeStrategy::~PurgeStrategy()
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{
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}
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void PurgeStrategy::list(const std::string& path, std::vector<File>& files)
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{
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Path p(path);
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p.makeAbsolute();
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Path parent = p.parent();
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std::string baseName = p.getFileName();
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baseName.append(".");
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DirectoryIterator it(parent);
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DirectoryIterator end;
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while (it != end)
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{
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if (it.name().compare(0, baseName.size(), baseName) == 0
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&& it.name().find(".incomplete") == std::string::npos)
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{
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files.push_back(*it);
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}
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++it;
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}
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}
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//
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// PurgeByAgeStrategy
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//
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PurgeByAgeStrategy::PurgeByAgeStrategy(const Timespan& age): _age(age)
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{
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}
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PurgeByAgeStrategy::~PurgeByAgeStrategy()
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{
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}
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void PurgeByAgeStrategy::purge(const std::string& path)
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{
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std::vector<File> files;
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list(path, files);
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for (std::vector<File>::iterator it = files.begin(); it != files.end(); ++it)
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{
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if (it->getLastModified().isElapsed(_age.totalMicroseconds()))
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{
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it->remove();
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}
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}
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}
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//
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// PurgeByCountStrategy
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//
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PurgeByCountStrategy::PurgeByCountStrategy(int count): _count(count)
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{
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poco_assert(count > 0);
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}
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PurgeByCountStrategy::~PurgeByCountStrategy()
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{
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}
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void PurgeByCountStrategy::purge(const std::string& path)
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{
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std::vector<File> files;
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list(path, files);
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while (files.size() > _count)
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{
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std::vector<File>::iterator it = files.begin();
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std::vector<File>::iterator purgeIt = it;
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Timestamp purgeTS = purgeIt->getLastModified();
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++it;
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while (it != files.end())
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{
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Timestamp md(it->getLastModified());
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if (md <= purgeTS)
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{
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purgeTS = md;
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purgeIt = it;
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}
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++it;
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}
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purgeIt->remove();
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files.erase(purgeIt);
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}
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}
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void PurgeOneFileStrategy::purge(const std::string& path)
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{
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std::vector<File> files;
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list(path, files);
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if (files.empty())
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{
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File(path).setSize(0);
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return;
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}
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auto purge_it = files.begin();
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auto it = files.begin();
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for (++it; it != files.end(); ++it)
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if (it->getLastModified() < purge_it->getLastModified())
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purge_it = it;
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purge_it->remove();
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}
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} // namespace Poco
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