121 lines
2.9 KiB
C++
121 lines
2.9 KiB
C++
/* Copyright (C) 2009 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* 'tree' of VFS directories and files
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*/
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#ifndef INCLUDED_VFS_TREE
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#define INCLUDED_VFS_TREE
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#include "lib/file/file_system.h" // FileInfo
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#include "lib/file/common/file_loader.h" // PIFileLoader
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#include "lib/file/common/real_directory.h" // PRealDirectory
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class VfsFile
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{
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public:
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VfsFile(const std::string& name, size_t size, time_t mtime, size_t priority, const PIFileLoader& provider);
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const std::string& Name() const
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{
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return m_name;
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}
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size_t Size() const
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{
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return m_size;
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}
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time_t MTime() const
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{
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return m_mtime;
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}
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bool IsSupersededBy(const VfsFile& file) const;
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void GenerateDescription(char* text, size_t maxChars) const;
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LibError Load(const shared_ptr<u8>& buf) const;
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private:
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std::string m_name;
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size_t m_size;
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time_t m_mtime;
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size_t m_priority;
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PIFileLoader m_loader;
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};
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class VfsDirectory
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{
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public:
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VfsDirectory();
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/**
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* @return address of existing or newly inserted file; remains
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* valid until ClearR is called (i.e. VFS is rebuilt).
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**/
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VfsFile* AddFile(const VfsFile& file);
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/**
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* @return address of existing or newly inserted subdirectory; remains
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* valid until ClearR is called (i.e. VFS is rebuilt).
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**/
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VfsDirectory* AddSubdirectory(const std::string& name);
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VfsFile* GetFile(const std::string& name);
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VfsDirectory* GetSubdirectory(const std::string& name);
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void GetEntries(FileInfos* files, DirectoryNames* subdirectories) const;
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void DisplayR(size_t depth) const;
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void ClearR();
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/**
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* side effect: the next ShouldPopulate() will return true.
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**/
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void SetAssociatedDirectory(const PRealDirectory& realDirectory);
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const PRealDirectory& AssociatedDirectory() const
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{
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return m_realDirectory;
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}
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/**
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* @return whether this directory should be populated from its
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* AssociatedDirectory(). note that calling this is a promise to
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* do so if true is returned -- the flag is immediately reset.
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**/
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bool ShouldPopulate();
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private:
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typedef std::map<std::string, VfsFile> VfsFiles;
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VfsFiles m_files;
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typedef std::map<std::string, VfsDirectory> VfsSubdirectories;
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VfsSubdirectories m_subdirectories;
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PRealDirectory m_realDirectory;
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volatile uintptr_t m_shouldPopulate; // (cpu_CAS can't be used on bool)
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};
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#endif // #ifndef INCLUDED_VFS_TREE
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