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tessesframework/include/TessesFramework/Filesystem/VFS.hpp

344 lines
11 KiB
C++

#pragma once
#include "../Common.hpp"
#include "../Streams/Stream.hpp"
#include <TessesFramework/Common.hpp>
#include <TessesFramework/Date/Date.hpp>
#include <functional>
#include <memory>
#include "../Date/Date.hpp"
#include "VFSFix.hpp"
namespace Tesses::Framework::Filesystem
{
struct StatVFSData {
uint64_t BlockSize;
uint64_t FragmentSize;
uint64_t Blocks;
uint64_t BlocksFree;
uint64_t BlocksAvailable;
uint64_t TotalInodes;
uint64_t FreeInodes;
uint64_t AvailableInodes;
uint64_t Id;
uint64_t Flags;
uint64_t MaxNameLength;
};
constexpr uint32_t MODE_USER_READ = 0400;
constexpr uint32_t MODE_USER_WRITE = 0200;
constexpr uint32_t MODE_USER_EXEC = 0100;
constexpr uint32_t MODE_GROUP_READ = (MODE_USER_READ >> 3);
constexpr uint32_t MODE_GROUP_WRITE = (MODE_USER_WRITE >> 3);
constexpr uint32_t MODE_GROUP_EXEC = (MODE_USER_EXEC >> 3);
constexpr uint32_t MODE_OTHER_READ = (MODE_GROUP_READ >> 3);
constexpr uint32_t MODE_OTHER_WRITE = (MODE_GROUP_WRITE >> 3);
constexpr uint32_t MODE_OTHER_EXEC = (MODE_GROUP_EXEC >> 3);
constexpr uint32_t MODE_REGULAR = 0100000;
constexpr uint32_t MODE_DIRECTORY = 0040000;
constexpr uint32_t MODE_CHAR_DEVICE = 0020000;
constexpr uint32_t MODE_BLOCK_DEVICE = 0060000;
constexpr uint32_t MODE_SOCKET = 0140000;
constexpr uint32_t MODE_FIFO = 0010000;
constexpr uint32_t MODE_SYMLINK = 0120000;
struct StatData {
uint64_t Device;
uint64_t Inode;
uint32_t Mode;
uint64_t HardLinks;
uint32_t UserId;
uint32_t GroupId;
uint64_t DeviceId;
uint64_t Size;
uint64_t BlockSize;
uint64_t BlockCount;
Date::DateTime LastAccess;
Date::DateTime LastModified;
Date::DateTime LastStatus;
bool IsRegularFile()
{
return (Mode & MODE_REGULAR) > 0;
}
bool IsDirectory()
{
return (Mode & MODE_DIRECTORY) > 0;
}
bool IsCharDevice()
{
return (Mode & MODE_CHAR_DEVICE) > 0;
}
bool IsBlockDevice()
{
return (Mode & MODE_BLOCK_DEVICE) > 0;
}
bool IsSocket()
{
return (Mode & MODE_SOCKET) > 0;
}
bool IsFIFO()
{
return (Mode & MODE_FIFO) > 0;
}
bool IsSymlink()
{
return (Mode & MODE_SYMLINK) > 0;
}
bool IsSpecial()
{
if(IsRegularFile()) return false;
if(IsDirectory()) return false;
return true;
}
std::string ToSizeString(bool usesBin=true)
{
return TF_FileSize(this->Size, usesBin);
}
};
class VFSPath {
public:
static VFSPath CurrentDirectoryAsRelative();
bool relative;
static std::vector<std::string> SplitPath(std::string path);
std::vector<std::string> path;
VFSPath();
explicit VFSPath(const char* path) : VFSPath(std::string(path))
{}
VFSPath(std::vector<std::string> path);
VFSPath(std::string path);
VFSPath(VFSPath p, std::string subent);
VFSPath(VFSPath p, VFSPath p2);
//does not check for ?
static VFSPath ParseUriPath(std::string path);
VFSPath GetParent() const;
VFSPath CollapseRelativeParents() const;
std::string GetFileName() const;
bool HasExtension() const;
std::string GetExtension() const;
void ChangeExtension(std::string ext);
void RemoveExtension();
std::string ToString() const;
static VFSPath GetAbsoluteCurrentDirectory();
static void SetAbsoluteCurrentDirectory(VFSPath path);
VFSPath MakeAbsolute() const;
VFSPath MakeAbsolute(VFSPath curDir) const;
VFSPath MakeRelative() const;
VFSPath MakeRelative(VFSPath toMakeRelativeTo) const;
};
VFSPath operator/(VFSPath p, VFSPath p2);
VFSPath operator/(VFSPath p, std::string p2);
VFSPath operator/(std::string p, VFSPath p2);
VFSPath operator+(VFSPath p, VFSPath p2);
VFSPath operator+(VFSPath p, std::string p2);
VFSPath operator+(std::string p, VFSPath p2);
bool operator==(VFSPath p,VFSPath p2);
bool operator!=(VFSPath p,VFSPath p2);
bool operator==(std::string p,VFSPath p2);
bool operator!=(std::string p,VFSPath p2);
bool operator==(VFSPath p,std::string p2);
bool operator!=(VFSPath p,std::string p2);
class VFSPathEnumeratorData {
public:
VFSPathEnumeratorData(std::function<bool(VFSPath&)> moveNext, std::function<void()> destroy)
{
this->eof=false;
this->moveNext=moveNext;
this->destroy=destroy;
}
bool eof;
std::function<bool(VFSPath&)> moveNext;
std::function<void()> destroy;
~VFSPathEnumeratorData()
{
this->destroy();
}
};
class VFSPathEnumerator;
class VFSPathEnumeratorItterator
{
VFSPath e;
VFSPathEnumerator* enumerator;
public:
VFSPathEnumeratorItterator();
VFSPathEnumeratorItterator(VFSPathEnumerator* enumerator);
VFSPathEnumeratorItterator& operator++();
VFSPathEnumeratorItterator& operator++(int);
VFSPath& operator*();
VFSPath* operator->();
bool operator!=(VFSPathEnumeratorItterator right);
bool operator==(VFSPathEnumeratorItterator right);
};
class VFSPathEnumerator {
std::shared_ptr<VFSPathEnumeratorData> data;
public:
VFSPathEnumerator();
VFSPathEnumerator* MakePointer();
VFSPathEnumerator(std::function<bool(VFSPath&)> moveNext, std::function<void()> destroy);
VFSPath Current;
bool MoveNext();
bool IsDone();
VFSPathEnumeratorItterator begin();
VFSPathEnumeratorItterator end();
};
enum class FSWatcherEventType {
None = 0,
//IN_ACCESS
Accessed=1,
//IN_ATTRIB
AttributeChanged =2,
//IN_CLOSE_WRITE
Writen = 4,
//IN_CLOSE_NOWRITE
Read = 8,
//IN_CREATE
Created = 16,
//IN_DELETE
Deleted = 32,
//IN_DELETE_SELF
WatchEntryDeleted = 64,
//IN_MODIFY
Modified = 128,
//IN_MOVE_SELF
WatchEntryMoved = 256,
//IN_MOVED_FROM
MoveOld = 512,
//IN_MOVED_TO
MoveNew = 1024,
//IN_OPEN
Opened = 2048,
//IN_CLOSE
Closed = Writen | Read,
//IN_MOVE
Moved = MoveOld | MoveNew,
//IN_ALL_EVENTS
All = Accessed | AttributeChanged | Created | Deleted | WatchEntryDeleted | Modified | WatchEntryMoved | Opened | Closed | Moved
};
struct FSWatcherEvent {
//the file or source on move
VFSPath src;
//the dest when moving
VFSPath dest;
FSWatcherEventType type;
bool isDir;
bool IsEvent(FSWatcherEventType e);
std::string ToString();
};
class VFS;
class FSWatcher {
private:
std::shared_ptr<VFS> vfs;
VFSPath path;
protected:
std::atomic<bool> enabled=false;
virtual void SetEnabledImpl(bool enabled);
public:
FSWatcher(std::shared_ptr<VFS> vfs, VFSPath path);
std::function<void(FSWatcherEvent&)> event;
FSWatcherEventType events = FSWatcherEventType::All;
bool GetEnabled();
void SetEnabled(bool val);
std::shared_ptr<VFS> GetFilesystem();
const VFSPath& GetPath();
virtual ~FSWatcher() = default;
static std::shared_ptr<FSWatcher> Create(std::shared_ptr<VFS> vfs, VFSPath path);
};
enum class FIFOCreationResult {
Success=0,
Exists = 1,
ReadOnlyFS = 2,
Denied = 3,
OutOfInodes = 4,
UnknownError = 5,
Unsupported = 255
};
class VFS {
public:
virtual std::shared_ptr<Tesses::Framework::Streams::Stream> OpenFile(VFSPath path, std::string mode)=0;
virtual void CreateDirectory(VFSPath path);
virtual void DeleteDirectory(VFSPath path);
bool DirectoryExists(VFSPath path);
bool RegularFileExists(VFSPath path);
bool SymlinkExists(VFSPath path);
bool CharacterDeviceExists(VFSPath path);
bool BlockDeviceExists(VFSPath path);
bool SocketFileExists(VFSPath path);
bool FIFOFileExists(VFSPath path);
bool FileExists(VFSPath path);
bool SpecialFileExists(VFSPath path);
virtual void CreateSymlink(VFSPath existingFile, VFSPath symlinkFile);
virtual void CreateHardlink(VFSPath existingFile, VFSPath newName);
virtual void DeleteFile(VFSPath path);
virtual void DeleteDirectoryRecurse(VFSPath path);
virtual VFSPathEnumerator EnumeratePaths(VFSPath path) = 0;
virtual void MoveFile(VFSPath src, VFSPath dest);
virtual void MoveDirectory(VFSPath src, VFSPath dest);
virtual VFSPath ReadLink(VFSPath path);
virtual std::string VFSPathToSystem(VFSPath path)=0;
virtual VFSPath SystemToVFSPath(std::string path)=0;
void GetDate(VFSPath path, Date::DateTime& lastWrite, Date::DateTime& lastAccess);
virtual void SetDate(VFSPath path, Date::DateTime lastWrite, Date::DateTime lastAccess);
virtual bool Stat(VFSPath path, StatData& data) = 0;
virtual bool StatVFS(VFSPath path, StatVFSData& data);
virtual void Chmod(VFSPath path, uint32_t mode);
virtual void Chown(VFSPath path, uint32_t userId, uint32_t groupId);
virtual void Lock(VFSPath path);
virtual void Unlock(VFSPath path);
virtual FIFOCreationResult CreateFIFO(VFSPath path, uint32_t mode);
virtual ~VFS();
virtual void Close();
protected:
virtual std::shared_ptr<FSWatcher> CreateWatcher(std::shared_ptr<VFS> vfs, VFSPath path);
friend class FSWatcher;
};
namespace Literals
{
inline VFSPath operator""_tpath(const char* path)
{
return VFSPath(path);
}
}
}