mirror of https://github.com/stella-emu/stella.git
95 lines
2.9 KiB
C++
95 lines
2.9 KiB
C++
//============================================================================
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//
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// SSSS tt lll lll
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// SS SS tt ll ll
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// SS tttttt eeee ll ll aaaa
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// SSSS tt ee ee ll ll aa
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// SS tt eeeeee ll ll aaaaa -- "An Atari 2600 VCS Emulator"
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// SS SS tt ee ll ll aa aa
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// SSSS ttt eeeee llll llll aaaaa
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//
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// Copyright (c) 1995-2020 by Bradford W. Mott, Stephen Anthony
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// and the Stella Team
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//
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// See the file "License.txt" for information on usage and redistribution of
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// this file, and for a DISCLAIMER OF ALL WARRANTIES.
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//============================================================================
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#ifndef FS_NODE_POSIX_HXX
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#define FS_NODE_POSIX_HXX
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#include "FSNode.hxx"
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#ifdef BSPF_MACOS
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#include <sys/types.h>
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#endif
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#include <cassert>
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#include <cstdio>
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#include <cstring>
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#include <cstdlib>
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#include <unistd.h>
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#ifndef MAXPATHLEN // No MAXPATHLEN, as happens on Hurd
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#define MAXPATHLEN 1024
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#endif
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/*
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* Implementation of the Stella file system API based on POSIX (for Linux and macOS)
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*
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* Parts of this class are documented in the base interface class, AbstractFSNode.
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*/
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class FilesystemNodePOSIX : public AbstractFSNode
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{
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public:
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/**
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* Creates a FilesystemNodePOSIX with the root node as path.
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*/
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FilesystemNodePOSIX();
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/**
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* Creates a FilesystemNodePOSIX for a given path.
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*
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* @param path String with the path the new node should point to.
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* @param verify true if the isValid and isDirectory/isFile flags should
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* be verified during the construction.
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*/
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explicit FilesystemNodePOSIX(const string& path, bool verify = true);
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bool exists() const override { return access(_path.c_str(), F_OK) == 0; }
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const string& getName() const override { return _displayName; }
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void setName(const string& name) override { _displayName = name; }
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const string& getPath() const override { return _path; }
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string getShortPath() const override;
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bool hasParent() const override;
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bool isDirectory() const override { return _isDirectory; }
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bool isFile() const override { return _isFile; }
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bool isReadable() const override { return access(_path.c_str(), R_OK) == 0; }
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bool isWritable() const override { return access(_path.c_str(), W_OK) == 0; }
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bool makeDir() override;
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bool rename(const string& newfile) override;
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bool getChildren(AbstractFSList& list, ListMode mode) const override;
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AbstractFSNodePtr getParent() const override;
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protected:
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string _path;
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string _displayName;
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bool _isValid{true};
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bool _isFile{false};
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bool _isDirectory{true};
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private:
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/**
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* Tests and sets the _isValid and _isDirectory/_isFile flags,
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* using the stat() function.
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*/
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void setFlags();
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};
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#endif
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