godot-docs/classes/class_streampeertcp.rst

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.. _class_StreamPeerTCP:

StreamPeerTCP
=============

**Inherits:** :ref:`StreamPeerSocket<class_StreamPeerSocket>` **<** :ref:`StreamPeer<class_StreamPeer>` **<** :ref:`RefCounted<class_RefCounted>` **<** :ref:`Object<class_Object>`

A stream peer that handles TCP connections.

.. rst-class:: classref-introduction-group

Description
-----------

A stream peer that handles TCP connections. This object can be used to connect to TCP servers, or also is returned by a TCP server.

\ **Note:** When exporting to Android, make sure to enable the ``INTERNET`` permission in the Android export preset before exporting the project or using one-click deploy. Otherwise, network communication of any kind will be blocked by Android.

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Methods
-------

.. table::
   :widths: auto

   +---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Error<enum_@GlobalScope_Error>` | :ref:`bind<class_StreamPeerTCP_method_bind>`\ (\ port\: :ref:`int<class_int>`, host\: :ref:`String<class_String>` = "*"\ )                 |
   +---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Error<enum_@GlobalScope_Error>` | :ref:`connect_to_host<class_StreamPeerTCP_method_connect_to_host>`\ (\ host\: :ref:`String<class_String>`, port\: :ref:`int<class_int>`\ ) |
   +---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`String<class_String>`           | :ref:`get_connected_host<class_StreamPeerTCP_method_get_connected_host>`\ (\ ) |const|                                                     |
   +---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`int<class_int>`                 | :ref:`get_connected_port<class_StreamPeerTCP_method_get_connected_port>`\ (\ ) |const|                                                     |
   +---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`int<class_int>`                 | :ref:`get_local_port<class_StreamPeerTCP_method_get_local_port>`\ (\ ) |const|                                                             |
   +---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------+
   | |void|                                | :ref:`set_no_delay<class_StreamPeerTCP_method_set_no_delay>`\ (\ enabled\: :ref:`bool<class_bool>`\ )                                      |
   +---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------+

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----

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Method Descriptions
-------------------

.. _class_StreamPeerTCP_method_bind:

.. rst-class:: classref-method

:ref:`Error<enum_@GlobalScope_Error>` **bind**\ (\ port\: :ref:`int<class_int>`, host\: :ref:`String<class_String>` = "*"\ ) :ref:`🔗<class_StreamPeerTCP_method_bind>`

Opens the TCP socket, and binds it to the specified local address.

This method is generally not needed, and only used to force the subsequent call to :ref:`connect_to_host()<class_StreamPeerTCP_method_connect_to_host>` to use the specified ``host`` and ``port`` as source address. This can be desired in some NAT punchthrough techniques, or when forcing the source network interface.

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----

.. _class_StreamPeerTCP_method_connect_to_host:

.. rst-class:: classref-method

:ref:`Error<enum_@GlobalScope_Error>` **connect_to_host**\ (\ host\: :ref:`String<class_String>`, port\: :ref:`int<class_int>`\ ) :ref:`🔗<class_StreamPeerTCP_method_connect_to_host>`

Connects to the specified ``host:port`` pair. A hostname will be resolved if valid. Returns :ref:`@GlobalScope.OK<class_@GlobalScope_constant_OK>` on success.

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----

.. _class_StreamPeerTCP_method_get_connected_host:

.. rst-class:: classref-method

:ref:`String<class_String>` **get_connected_host**\ (\ ) |const| :ref:`🔗<class_StreamPeerTCP_method_get_connected_host>`

Returns the IP of this peer.

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----

.. _class_StreamPeerTCP_method_get_connected_port:

.. rst-class:: classref-method

:ref:`int<class_int>` **get_connected_port**\ (\ ) |const| :ref:`🔗<class_StreamPeerTCP_method_get_connected_port>`

Returns the port of this peer.

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----

.. _class_StreamPeerTCP_method_get_local_port:

.. rst-class:: classref-method

:ref:`int<class_int>` **get_local_port**\ (\ ) |const| :ref:`🔗<class_StreamPeerTCP_method_get_local_port>`

Returns the local port to which this peer is bound.

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----

.. _class_StreamPeerTCP_method_set_no_delay:

.. rst-class:: classref-method

|void| **set_no_delay**\ (\ enabled\: :ref:`bool<class_bool>`\ ) :ref:`🔗<class_StreamPeerTCP_method_set_no_delay>`

If ``enabled`` is ``true``, packets will be sent immediately. If ``enabled`` is ``false`` (the default), packet transfers will be delayed and combined using `Nagle's algorithm <https://en.wikipedia.org/wiki/Nagle%27s_algorithm>`__.

\ **Note:** It's recommended to leave this disabled for applications that send large packets or need to transfer a lot of data, as enabling this can decrease the total available bandwidth.

.. |virtual| replace:: :abbr:`virtual (This method should typically be overridden by the user to have any effect.)`
.. |required| replace:: :abbr:`required (This method is required to be overridden when extending its base class.)`
.. |const| replace:: :abbr:`const (This method has no side effects. It doesn't modify any of the instance's member variables.)`
.. |vararg| replace:: :abbr:`vararg (This method accepts any number of arguments after the ones described here.)`
.. |constructor| replace:: :abbr:`constructor (This method is used to construct a type.)`
.. |static| replace:: :abbr:`static (This method doesn't need an instance to be called, so it can be called directly using the class name.)`
.. |operator| replace:: :abbr:`operator (This method describes a valid operator to use with this type as left-hand operand.)`
.. |bitfield| replace:: :abbr:`BitField (This value is an integer composed as a bitmask of the following flags.)`
.. |void| replace:: :abbr:`void (No return value.)`