Urho3D
Public Member Functions | Private Member Functions | Private Attributes | List of all members
Urho3D::NamedPipe Class Reference

Named pipe for interprocess communication. More...

#include </home/runner/work/rurho3d.github.io/rurho3d.github.io/urho3d_repo/Source/Urho3D/IO/NamedPipe.h>

Inheritance diagram for Urho3D::NamedPipe:
Urho3D::Object Urho3D::AbstractFile Urho3D::RefCounted Urho3D::Deserializer Urho3D::Serializer

Public Member Functions

 NamedPipe (Context *context)
 Construct.
 
 NamedPipe (Context *context, const String &name, bool isServer)
 Construct and open in either server or client mode.
 
 ~NamedPipe () override
 Destruct and close.
 
i32 Read (void *dest, i32 size) override
 Read bytes from the pipe without blocking if there is less data available. Return number of bytes actually read. More...
 
i64 Seek (i64 position) override
 Set position. No-op for pipes. More...
 
i32 Write (const void *data, i32 size) override
 Write bytes to the pipe. Return number of bytes actually written. More...
 
bool IsEof () const override
 Return whether pipe has no data available. More...
 
void SetName (const String &name) override
 Not supported. More...
 
bool Open (const String &name, bool isServer)
 Open the pipe in either server or client mode. If already open, the existing pipe is closed. For a client end to open successfully the server end must already to be open. Return true if successful.
 
void Close ()
 Close the pipe. Note that once a client has disconnected, the server needs to close and reopen the pipe so that another client can connect. At least on Windows this is not possible to detect automatically, so the communication protocol should include a "bye" message to handle this situation.
 
bool IsOpen () const
 Return whether is open.
 
bool IsServer () const
 Return whether is in server mode.
 
- 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
 Return type hash. More...
 
virtual const StringGetTypeName () const =0
 Return type name. More...
 
virtual const TypeInfoGetTypeInfo () 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 Vector< 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.
 
VariantMapGetEventDataMap () 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.
 
ContextGetContext () const
 Return execution context.
 
const VariantGetGlobalVar (StringHash key) const
 Return global variable based on key.
 
const VariantMapGetGlobalVars () const
 Return all global variables.
 
void SetGlobalVar (StringHash key, const Variant &value)
 Set global variable with the respective key and value.
 
ObjectGetSubsystem (StringHash type) const
 Return subsystem by type.
 
ObjectGetEventSender () const
 Return active event sender. Null outside event handling.
 
EventHandlerGetEventHandler () 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 StringGetCategory () const
 Return object category. Categories are (optionally) registered along with the object factory. Return an empty string if the object category is not registered.
 
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.
 
RefCountedoperator= (const RefCounted &rhs)=delete
 Prevent assignment.
 
void AddRef ()
 Increment reference count. Can also be called outside of a SharedPtr for traditional reference counting.
 
void ReleaseRef ()
 Decrement reference count and delete self if no more references. Can also be called outside of a SharedPtr for traditional reference counting.
 
int Refs () const
 Return reference count.
 
int WeakRefs () const
 Return weak reference count.
 
RefCountRefCountPtr ()
 Return pointer to the reference count structure.
 
- Public Member Functions inherited from Urho3D::AbstractFile
 AbstractFile ()
 Construct.
 
 AbstractFile (i64 size)
 Construct.
 
 ~AbstractFile () override=default
 Destruct.
 
virtual void SetName (const String &name)
 Change the file name. Used by the resource system. More...
 
const StringGetName () const override
 Return the file name. More...
 
- Public Member Functions inherited from Urho3D::Deserializer
 Deserializer ()
 Construct with zero size.
 
 Deserializer (i64 size)
 Construct with defined size.
 
virtual ~Deserializer ()
 Destruct.
 
virtual i32 Read (void *dest, i32 size)=0
 Read bytes from the stream. Return number of bytes actually read. More...
 
virtual i64 Seek (i64 position)=0
 Set position from the beginning of the stream. Return actual new position. More...
 
virtual const StringGetName () const
 Return name of the stream. More...
 
virtual hash32 GetChecksum ()
 Return a checksum if applicable. More...
 
virtual bool IsEof () const
 Return whether the end of stream has been reached. More...
 
i64 SeekRelative (i64 delta)
 Set position relative to current position. Return actual new position.
 
i64 GetPosition () const
 Return current position.
 
i64 Tell () const
 Return current position.
 
i64 GetSize () const
 Return size.
 
long long ReadInt64 ()
 Read a 64-bit integer.
 
int ReadInt ()
 Read a 32-bit integer.
 
short ReadShort ()
 Read a 16-bit integer.
 
signed char ReadByte ()
 Read an 8-bit integer.
 
unsigned long long ReadUInt64 ()
 Read a 64-bit unsigned integer.
 
unsigned ReadUInt ()
 Read a 32-bit unsigned integer.
 
unsigned short ReadUShort ()
 Read a 16-bit unsigned integer.
 
u8 ReadUByte ()
 Read an 8-bit unsigned integer.
 
bool ReadBool ()
 Read a bool.
 
float ReadFloat ()
 Read a float.
 
double ReadDouble ()
 Read a double.
 
IntRect ReadIntRect ()
 Read an IntRect.
 
IntVector2 ReadIntVector2 ()
 Read an IntVector2.
 
IntVector3 ReadIntVector3 ()
 Read an IntVector3.
 
Rect ReadRect ()
 Read a Rect.
 
Vector2 ReadVector2 ()
 Read a Vector2.
 
Vector3 ReadVector3 ()
 Read a Vector3.
 
Vector3 ReadPackedVector3 (float maxAbsCoord)
 Read a Vector3 packed into 3 x 16 bits with the specified maximum absolute range.
 
Vector4 ReadVector4 ()
 Read a Vector4.
 
Quaternion ReadQuaternion ()
 Read a quaternion.
 
Quaternion ReadPackedQuaternion ()
 Read a quaternion with each component packed in 16 bits.
 
Matrix3 ReadMatrix3 ()
 Read a Matrix3.
 
Matrix3x4 ReadMatrix3x4 ()
 Read a Matrix3x4.
 
Matrix4 ReadMatrix4 ()
 Read a Matrix4.
 
Color ReadColor ()
 Read a color.
 
BoundingBox ReadBoundingBox ()
 Read a bounding box.
 
String ReadString ()
 Read a null-terminated string.
 
String ReadFileID ()
 Read a four-letter file ID.
 
StringHash ReadStringHash ()
 Read a 32-bit StringHash.
 
Vector< u8 > ReadBuffer ()
 Read a buffer with size encoded as VLE.
 
ResourceRef ReadResourceRef ()
 Read a resource reference.
 
ResourceRefList ReadResourceRefList ()
 Read a resource reference list.
 
Variant ReadVariant ()
 Read a variant.
 
Variant ReadVariant (VariantType type)
 Read a variant whose type is already known.
 
VariantVector ReadVariantVector ()
 Read a variant vector.
 
StringVector ReadStringVector ()
 Read a string vector.
 
VariantMap ReadVariantMap ()
 Read a variant map.
 
unsigned ReadVLE ()
 Read a variable-length encoded unsigned integer, which can use 29 bits maximum.
 
unsigned ReadNetID ()
 Read a 24-bit network object ID.
 
String ReadLine ()
 Read a text line.
 
- Public Member Functions inherited from Urho3D::Serializer
virtual ~Serializer ()
 Destruct.
 
virtual i32 Write (const void *data, i32 size)=0
 Write bytes to the stream. Return number of bytes actually written. More...
 
bool WriteInt64 (long long value)
 Write a 64-bit integer.
 
bool WriteInt (int value)
 Write a 32-bit integer.
 
bool WriteShort (short value)
 Write a 16-bit integer.
 
bool WriteByte (signed char value)
 Write an 8-bit integer.
 
bool WriteUInt64 (unsigned long long value)
 Write a 64-bit unsigned integer.
 
bool WriteUInt (unsigned value)
 Write a 32-bit unsigned integer.
 
bool WriteUShort (unsigned short value)
 Write a 16-bit unsigned integer.
 
bool WriteUByte (unsigned char value)
 Write an 8-bit unsigned integer.
 
bool WriteBool (bool value)
 Write a bool.
 
bool WriteFloat (float value)
 Write a float.
 
bool WriteDouble (double value)
 Write a double.
 
bool WriteIntRect (const IntRect &value)
 Write an IntRect.
 
bool WriteIntVector2 (const IntVector2 &value)
 Write an IntVector2.
 
bool WriteIntVector3 (const IntVector3 &value)
 Write an IntVector3.
 
bool WriteRect (const Rect &value)
 Write a Rect.
 
bool WriteVector2 (const Vector2 &value)
 Write a Vector2.
 
bool WriteVector3 (const Vector3 &value)
 Write a Vector3.
 
bool WritePackedVector3 (const Vector3 &value, float maxAbsCoord)
 Write a Vector3 packed into 3 x 16 bits with the specified maximum absolute range.
 
bool WriteVector4 (const Vector4 &value)
 Write a Vector4.
 
bool WriteQuaternion (const Quaternion &value)
 Write a quaternion.
 
bool WritePackedQuaternion (const Quaternion &value)
 Write a quaternion with each component packed in 16 bits.
 
bool WriteMatrix3 (const Matrix3 &value)
 Write a Matrix3.
 
bool WriteMatrix3x4 (const Matrix3x4 &value)
 Write a Matrix3x4.
 
bool WriteMatrix4 (const Matrix4 &value)
 Write a Matrix4.
 
bool WriteColor (const Color &value)
 Write a color.
 
bool WriteBoundingBox (const BoundingBox &value)
 Write a bounding box.
 
bool WriteString (const String &value)
 Write a null-terminated string.
 
bool WriteFileID (const String &value)
 Write a four-letter file ID. If the string is not long enough, spaces will be appended.
 
bool WriteStringHash (const StringHash &value)
 Write a 32-bit StringHash.
 
bool WriteBuffer (const Vector< unsigned char > &value)
 Write a buffer, with size encoded as VLE.
 
bool WriteResourceRef (const ResourceRef &value)
 Write a resource reference.
 
bool WriteResourceRefList (const ResourceRefList &value)
 Write a resource reference list.
 
bool WriteVariant (const Variant &value)
 Write a variant.
 
bool WriteVariantData (const Variant &value)
 Write a variant without the type information.
 
bool WriteVariantVector (const VariantVector &value)
 Write a variant vector.
 
bool WriteStringVector (const StringVector &value)
 Write a variant vector.
 
bool WriteVariantMap (const VariantMap &value)
 Write a variant map.
 
bool WriteVLE (unsigned value)
 Write a variable-length encoded unsigned integer, which can use 29 bits maximum.
 
bool WriteNetID (unsigned value)
 Write a 24-bit network object ID.
 
bool WriteLine (const String &value)
 Write a text line. Char codes 13 & 10 will be automatically appended.
 

Private Member Functions

 URHO3D_OBJECT (NamedPipe, Object)
 

Private Attributes

bool isServer_
 Server mode flag.
 
int readHandle_
 Pipe handle.
 
int writeHandle_
 

Additional Inherited Members

- Static Public Member Functions inherited from Urho3D::Object
static const TypeInfoGetTypeInfoStatic ()
 Return type info static.
 
- Protected Attributes inherited from Urho3D::Object
Contextcontext_
 Execution context.
 
- Protected Attributes inherited from Urho3D::AbstractFile
String name_
 File name.
 
- Protected Attributes inherited from Urho3D::Deserializer
i64 position_
 Stream position.
 
i64 size_
 Stream size.
 

Detailed Description

Named pipe for interprocess communication.

Member Function Documentation

◆ IsEof()

bool Urho3D::NamedPipe::IsEof ( ) const
overridevirtual

Return whether pipe has no data available.

Reimplemented from Urho3D::Deserializer.

◆ Read()

i32 Urho3D::NamedPipe::Read ( void *  dest,
i32  size 
)
overridevirtual

Read bytes from the pipe without blocking if there is less data available. Return number of bytes actually read.

Implements Urho3D::Deserializer.

◆ Seek()

i64 Urho3D::NamedPipe::Seek ( i64  position)
overridevirtual

Set position. No-op for pipes.

Implements Urho3D::Deserializer.

◆ SetName()

void Urho3D::NamedPipe::SetName ( const String name)
overridevirtual

Not supported.

Reimplemented from Urho3D::AbstractFile.

◆ Write()

i32 Urho3D::NamedPipe::Write ( const void *  data,
i32  size 
)
overridevirtual

Write bytes to the pipe. Return number of bytes actually written.

Implements Urho3D::Serializer.


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