Subsystem for file and directory operations and access control. More...

#include </var/dev/u3d/stable/Source/Urho3D/IO/FileSystem.h>

Inheritance diagram for Urho3D::FileSystem:

Collaboration diagram for Urho3D::FileSystem:

Public Member Functions
	FileSystem (Context *context)
	Construct.

	~FileSystem () override
	Destruct.

bool	SetCurrentDir (const String &pathName)

bool	CreateDir (const String &pathName)
	Create a directory.

void	SetExecuteConsoleCommands (bool enable)

int	SystemCommand (const String &commandLine, bool redirectStdOutToLog=false)
	Run a program using the command interpreter, block until it exits and return the exit code. Will fail if any allowed paths are defined.

int	SystemRun (const String &fileName, const Vector< String > &arguments)
	Run a specific program, block until it exits and return the exit code. Will fail if any allowed paths are defined.

unsigned	SystemCommandAsync (const String &commandLine)
	Run a program using the command interpreter asynchronously. Return a request ID or M_MAX_UNSIGNED if failed. The exit code will be posted together with the request ID in an AsyncExecFinished event. Will fail if any allowed paths are defined.

unsigned	SystemRunAsync (const String &fileName, const Vector< String > &arguments)
	Run a specific program asynchronously. Return a request ID or M_MAX_UNSIGNED if failed. The exit code will be posted together with the request ID in an AsyncExecFinished event. Will fail if any allowed paths are defined.

bool	SystemOpen (const String &fileName, const String &mode=String::EMPTY)
	Open a file in an external program, with mode such as "edit" optionally specified. Will fail if any allowed paths are defined.

bool	Copy (const String &srcFileName, const String &destFileName)
	Copy a file. Return true if successful.

bool	Rename (const String &srcFileName, const String &destFileName)
	Rename a file. Return true if successful.

bool	Delete (const String &fileName)
	Delete a file. Return true if successful.

void	RegisterPath (const String &pathName)
	Register a path as allowed to access. If no paths are registered, all are allowed. Registering allowed paths is considered securing the Urho3D execution environment: running programs and opening files externally through the system will fail afterward.

bool	SetLastModifiedTime (const String &fileName, unsigned newTime)
	Set a file's last modified time as seconds since 1.1.1970. Return true on success.

String	GetCurrentDir () const

bool	GetExecuteConsoleCommands () const

bool	HasRegisteredPaths () const
	Return whether paths have been registered.

bool	CheckAccess (const String &pathName) const
	Check if a path is allowed to be accessed. If no paths are registered, all are allowed.

unsigned	GetLastModifiedTime (const String &fileName) const
	Returns the file's last modified time as seconds since 1.1.1970, or 0 if can not be accessed.

bool	FileExists (const String &fileName) const
	Check if a file exists.

bool	DirExists (const String &pathName) const
	Check if a directory exists.

void	ScanDir (Vector< String > &result, const String &pathName, const String &filter, unsigned flags, bool recursive) const
	Scan a directory for specified files.

String	GetProgramDir () const

String	GetUserDocumentsDir () const

String	GetAppPreferencesDir (const String &org, const String &app) const
	Return the application preferences directory.

String	GetTemporaryDir () const

Public Member Functions inherited from Urho3D::Object
	Object (Context *context)
	Construct.

	~Object () override
	Destruct. Clean up self from event sender & receiver structures.

virtual StringHash	GetType () const =0

virtual const String &	GetTypeName () const =0

virtual const TypeInfo *	GetTypeInfo () const =0
	Return type info.

virtual void	OnEvent (Object *sender, StringHash eventType, VariantMap &eventData)
	Handle event.

bool	IsInstanceOf (StringHash type) const
	Check current instance is type of specified type.

bool	IsInstanceOf (const TypeInfo *typeInfo) const
	Check current instance is type of specified type.

template<typename T >
bool	IsInstanceOf () const
	Check current instance is type of specified class.

template<typename T >
T *	Cast ()
	Cast the object to specified most derived class.

template<typename T >
const T *	Cast () const
	Cast the object to specified most derived class.

void	SubscribeToEvent (StringHash eventType, EventHandler *handler)
	Subscribe to an event that can be sent by any sender.

void	SubscribeToEvent (Object sender, StringHash eventType, EventHandler handler)
	Subscribe to a specific sender's event.

void	SubscribeToEvent (StringHash eventType, const std::function< void(StringHash, VariantMap &)> &function, void *userData=nullptr)
	Subscribe to an event that can be sent by any sender.

void	SubscribeToEvent (Object sender, StringHash eventType, const std::function< void(StringHash, VariantMap &)> &function, void userData=nullptr)
	Subscribe to a specific sender's event.

void	UnsubscribeFromEvent (StringHash eventType)
	Unsubscribe from an event.

void	UnsubscribeFromEvent (Object *sender, StringHash eventType)
	Unsubscribe from a specific sender's event.

void	UnsubscribeFromEvents (Object *sender)
	Unsubscribe from a specific sender's events.

void	UnsubscribeFromAllEvents ()
	Unsubscribe from all events.

void	UnsubscribeFromAllEventsExcept (const PODVector< StringHash > &exceptions, bool onlyUserData)
	Unsubscribe from all events except those listed, and optionally only those with userdata (script registered events).

void	SendEvent (StringHash eventType)
	Send event to all subscribers.

void	SendEvent (StringHash eventType, VariantMap &eventData)
	Send event with parameters to all subscribers.

VariantMap &	GetEventDataMap () const
	Return a preallocated map for event data. Used for optimization to avoid constant re-allocation of event data maps.

template<typename... Args>
void	SendEvent (StringHash eventType, Args... args)
	Send event with variadic parameter pairs to all subscribers. The parameter pairs is a list of paramID and paramValue separated by comma, one pair after another.

Context *	GetContext () const
	Return execution context.

const Variant &	GetGlobalVar (StringHash key) const

const VariantMap &	GetGlobalVars () const

void	SetGlobalVar (StringHash key, const Variant &value)

Object *	GetSubsystem (StringHash type) const
	Return subsystem by type.

Object *	GetEventSender () const
	Return active event sender. Null outside event handling.

EventHandler *	GetEventHandler () const
	Return active event handler. Null outside event handling.

bool	HasSubscribedToEvent (StringHash eventType) const
	Return whether has subscribed to an event without specific sender.

bool	HasSubscribedToEvent (Object *sender, StringHash eventType) const
	Return whether has subscribed to a specific sender's event.

bool	HasEventHandlers () const
	Return whether has subscribed to any event.

template<class T >
T *	GetSubsystem () const
	Template version of returning a subsystem.

const String &	GetCategory () const

void	SetBlockEvents (bool block)
	Block object from sending and receiving events.

bool	GetBlockEvents () const
	Return sending and receiving events blocking status.

Public Member Functions inherited from Urho3D::RefCounted
	RefCounted ()
	Construct. Allocate the reference count structure and set an initial self weak reference.

virtual	~RefCounted ()
	Destruct. Mark as expired and also delete the reference count structure if no outside weak references exist.

	RefCounted (const RefCounted &rhs)=delete
	Prevent copy construction.

RefCounted &	operator= (const RefCounted &rhs)=delete
	Prevent assignment.

void	AddRef ()

void	ReleaseRef ()

int	Refs () const

int	WeakRefs () const

RefCount *	RefCountPtr ()
	Return pointer to the reference count structure.

Private Member Functions
	URHO3D_OBJECT (FileSystem, Object)

void	ScanDirInternal (Vector< String > &result, String path, const String &startPath, const String &filter, unsigned flags, bool recursive) const
	Scan directory, called internally. More...

void	HandleBeginFrame (StringHash eventType, VariantMap &eventData)
	Handle begin frame event to check for completed async executions.

void	HandleConsoleCommand (StringHash eventType, VariantMap &eventData)
	Handle a console command event.

Private Attributes
HashSet< String >	allowedPaths_
	Allowed directories.

List< AsyncExecRequest * >	asyncExecQueue_
	Async execution queue.

unsigned	nextAsyncExecID_ {1}
	Next async execution ID.

bool	executeConsoleCommands_ {}
	Flag for executing engine console commands as OS-specific system command. Default to true.

Additional Inherited Members
Static Public Member Functions inherited from Urho3D::Object
static const TypeInfo *	GetTypeInfoStatic ()
	Return type info static.

Protected Attributes inherited from Urho3D::Object
Context *	context_
	Execution context.

Detailed Description

Subsystem for file and directory operations and access control.

Member Function Documentation

◆ GetCurrentDir()

String Urho3D::FileSystem::GetCurrentDir ( ) const

Return the absolute current working directory.

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◆ GetExecuteConsoleCommands()

bool Urho3D::FileSystem::GetExecuteConsoleCommands ( ) const

inline

Return whether is executing engine console commands as OS-specific system command.

◆ GetProgramDir()

String Urho3D::FileSystem::GetProgramDir ( ) const

Return the program's directory.

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◆ GetTemporaryDir()

String Urho3D::FileSystem::GetTemporaryDir ( ) const

Return path of temporary directory. Path always ends with a forward slash.

◆ GetUserDocumentsDir()

String Urho3D::FileSystem::GetUserDocumentsDir ( ) const

Return the user documents directory.

◆ ScanDirInternal()

void Urho3D::FileSystem::ScanDirInternal	(	Vector< String > &	result,
		String	path,
		const String &	startPath,
		const String &	filter,
		unsigned	flags,
		bool	recursive
	)		const

private

Scan directory, called internally.

Todo:: Filename may be unnormalized Unicode on Mac OS X. Re-normalize as necessary

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◆ SetCurrentDir()

bool Urho3D::FileSystem::SetCurrentDir ( const String & pathName )

Set the current working directory.

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◆ SetExecuteConsoleCommands()

void Urho3D::FileSystem::SetExecuteConsoleCommands ( bool enable )

Set whether to execute engine console commands as OS-specific system command.

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The documentation for this class was generated from the following files:

/var/dev/u3d/stable/Source/Urho3D/IO/FileSystem.h
/var/dev/u3d/stable/Source/Urho3D/IO/FileSystem.cpp

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ GetCurrentDir()

◆ GetExecuteConsoleCommands()

◆ GetProgramDir()

◆ GetTemporaryDir()

◆ GetUserDocumentsDir()

◆ ScanDirInternal()

◆ SetCurrentDir()

◆ SetExecuteConsoleCommands()