diff --git a/vendor/asyncudp/.github/FUNDING.yml b/vendor/asyncudp/.github/FUNDING.yml
new file mode 100644
index 0000000000..91d9b70351
--- /dev/null
+++ b/vendor/asyncudp/.github/FUNDING.yml
@@ -0,0 +1 @@
+github: eerimoq
diff --git a/vendor/asyncudp/.github/workflows/pythonpackage.yml b/vendor/asyncudp/.github/workflows/pythonpackage.yml
new file mode 100644
index 0000000000..9b3f5cd31d
--- /dev/null
+++ b/vendor/asyncudp/.github/workflows/pythonpackage.yml
@@ -0,0 +1,50 @@
+name: Test
+
+on:
+  push:
+  pull_request:
+
+jobs:
+
+  linux:
+
+    runs-on: ubuntu-20.04
+    strategy:
+      max-parallel: 4
+      matrix:
+        python-version: [3.7, 3.8, 3.9]
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v3
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Test
+      run: |
+        python -m unittest
+
+  release:
+    needs: [linux]
+    runs-on: ubuntu-20.04
+    if: startsWith(github.ref, 'refs/tags')
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v1
+    - name: Set up Python 3.9
+      uses: actions/setup-python@v3
+      with:
+        python-version: 3.9
+    - name: Install pypa/build
+      run: |
+        python -m pip install build --user
+    - name: Build a source tarball
+      run: |
+        git clean -dfx
+        python -m build --sdist --outdir dist/ .
+    - name: Publish distribution 📦 to PyPI
+      uses: pypa/gh-action-pypi-publish@master
+      with:
+        skip_existing: true
+        password: ${{secrets.pypi_password}}
diff --git a/vendor/asyncudp/.gitignore b/vendor/asyncudp/.gitignore
new file mode 100644
index 0000000000..d86d71d397
--- /dev/null
+++ b/vendor/asyncudp/.gitignore
@@ -0,0 +1,72 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+
+# C extensions
+*.so
+*.o
+a.out
+
+# Distribution / packaging
+.Python
+env/
+venv/
+.venv/
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*,cover
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Vim IDE
+*~
+*.swp
+*.swo
+
+# IntelliJ IDEA
+.idea/
+
+# pyenv
+.python-version
diff --git a/vendor/asyncudp/LICENSE b/vendor/asyncudp/LICENSE
new file mode 100644
index 0000000000..2d5c757d4d
--- /dev/null
+++ b/vendor/asyncudp/LICENSE
@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2021 Erik Moqvist
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
diff --git a/vendor/asyncudp/MANIFEST.in b/vendor/asyncudp/MANIFEST.in
new file mode 100644
index 0000000000..90b3902af1
--- /dev/null
+++ b/vendor/asyncudp/MANIFEST.in
@@ -0,0 +1,2 @@
+include LICENSE
+recursive-include tests *.py
\ No newline at end of file
diff --git a/vendor/asyncudp/README.rst b/vendor/asyncudp/README.rst
new file mode 100644
index 0000000000..5b8ea965aa
--- /dev/null
+++ b/vendor/asyncudp/README.rst
@@ -0,0 +1,56 @@
+Asyncio high level UDP sockets
+==============================
+
+Asyncio high level UDP sockets.
+
+Project homepage: https://github.com/eerimoq/asyncudp
+
+Documentation: https://asyncudp.readthedocs.org/en/latest
+
+Installation
+============
+
+.. code-block:: python
+
+   $ pip install asyncudp
+
+Example client
+==============
+
+.. code-block:: python
+
+   import asyncio
+   import asyncudp
+
+   async def main():
+       sock = await asyncudp.create_socket(remote_addr=('127.0.0.1', 9999))
+       sock.sendto(b'Hello!')
+       print(await sock.recvfrom())
+       sock.close()
+
+   asyncio.run(main())
+
+Example server
+==============
+
+.. code-block:: python
+
+   import asyncio
+   import asyncudp
+
+   async def main():
+       sock = await asyncudp.create_socket(local_addr=('127.0.0.1', 9999))
+
+       while True:
+           data, addr = await sock.recvfrom()
+           print(data, addr)
+           sock.sendto(data, addr)
+
+   asyncio.run(main())
+
+Test
+====
+
+.. code-block::
+
+   $ python3 -m unittest
diff --git a/vendor/asyncudp/asyncudp/__init__.py b/vendor/asyncudp/asyncudp/__init__.py
new file mode 100644
index 0000000000..2709e0ded9
--- /dev/null
+++ b/vendor/asyncudp/asyncudp/__init__.py
@@ -0,0 +1,125 @@
+import asyncio
+
+from .version import __version__
+
+
+class ClosedError(Exception):
+    pass
+
+
+class _SocketProtocol:
+
+    def __init__(self, packets_queue_max_size):
+        self._error = None
+        self._packets = asyncio.Queue(packets_queue_max_size)
+
+    def connection_made(self, transport):
+        pass
+
+    def connection_lost(self, transport):
+        self._packets.put_nowait(None)
+
+    def datagram_received(self, data, addr):
+        self._packets.put_nowait((data, addr))
+
+    def error_received(self, exc):
+        self._error = exc
+        self._packets.put_nowait(None)
+
+    async def recvfrom(self):
+        return await self._packets.get()
+
+    def raise_if_error(self):
+        if self._error is None:
+            return
+
+        error = self._error
+        self._error = None
+
+        raise error
+
+
+class Socket:
+    """A UDP socket. Use :func:`~asyncudp.create_socket()` to create an
+    instance of this class.
+
+    """
+
+    def __init__(self, transport, protocol):
+        self._transport = transport
+        self._protocol = protocol
+
+    def close(self):
+        """Close the socket.
+
+        """
+
+        self._transport.close()
+
+    def sendto(self, data, addr=None):
+        """Send given packet to given address ``addr``. Sends to
+        ``remote_addr`` given to the constructor if ``addr`` is
+        ``None``.
+
+        Raises an error if a connection error has occurred.
+
+        >>> sock.sendto(b'Hi!')
+
+        """
+
+        self._transport.sendto(data, addr)
+        self._protocol.raise_if_error()
+
+    async def recvfrom(self):
+        """Receive a UDP packet.
+
+        Raises ClosedError on connection error, often by calling the
+        close() method from another task. May raise other errors as
+        well.
+
+        >>> data, addr = sock.recvfrom()
+
+        """
+
+        packet = await self._protocol.recvfrom()
+        self._protocol.raise_if_error()
+
+        if packet is None:
+            raise ClosedError()
+
+        return packet
+
+    def getsockname(self):
+        """Get bound infomation.
+
+        >>> local_address, local_port = sock.getsockname()
+
+        """
+
+        return self._transport.get_extra_info('sockname')
+
+    async def __aenter__(self):
+        return self
+
+    async def __aexit__(self, *exc_info):
+        self.close()
+
+
+async def create_socket(local_addr=None,
+                        remote_addr=None,
+                        packets_queue_max_size=0,
+                        reuse_port=None):
+    """Create a UDP socket with given local and remote addresses.
+
+    >>> sock = await asyncudp.create_socket(local_addr=('127.0.0.1', 9999))
+
+    """
+
+    loop = asyncio.get_running_loop()
+    transport, protocol = await loop.create_datagram_endpoint(
+        lambda: _SocketProtocol(packets_queue_max_size),
+        local_addr=local_addr,
+        remote_addr=remote_addr,
+        reuse_port=reuse_port)
+
+    return Socket(transport, protocol)
diff --git a/vendor/asyncudp/asyncudp/version.py b/vendor/asyncudp/asyncudp/version.py
new file mode 100644
index 0000000000..9d1bb721be
--- /dev/null
+++ b/vendor/asyncudp/asyncudp/version.py
@@ -0,0 +1 @@
+__version__ = '0.10.0'
diff --git a/vendor/asyncudp/docs/Makefile b/vendor/asyncudp/docs/Makefile
new file mode 100644
index 0000000000..4fbb276295
--- /dev/null
+++ b/vendor/asyncudp/docs/Makefile
@@ -0,0 +1,192 @@
+# Makefile for Sphinx documentation
+#
+
+# You can set these variables from the command line.
+SPHINXOPTS    =
+SPHINXBUILD   = sphinx-build
+PAPER         =
+BUILDDIR      = _build
+
+# User-friendly check for sphinx-build
+ifeq ($(shell which $(SPHINXBUILD) >/dev/null 2>&1; echo $$?), 1)
+$(error The '$(SPHINXBUILD)' command was not found. Make sure you have Sphinx installed, then set the SPHINXBUILD environment variable to point to the full path of the '$(SPHINXBUILD)' executable. Alternatively you can add the directory with the executable to your PATH. If you don't have Sphinx installed, grab it from http://sphinx-doc.org/)
+endif
+
+# Internal variables.
+PAPEROPT_a4     = -D latex_paper_size=a4
+PAPEROPT_letter = -D latex_paper_size=letter
+ALLSPHINXOPTS   = -d $(BUILDDIR)/doctrees $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
+# the i18n builder cannot share the environment and doctrees with the others
+I18NSPHINXOPTS  = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
+
+.PHONY: help clean html dirhtml singlehtml pickle json htmlhelp qthelp devhelp epub latex latexpdf text man changes linkcheck doctest coverage gettext
+
+help:
+	@echo "Please use \`make <target>' where <target> is one of"
+	@echo "  html       to make standalone HTML files"
+	@echo "  dirhtml    to make HTML files named index.html in directories"
+	@echo "  singlehtml to make a single large HTML file"
+	@echo "  pickle     to make pickle files"
+	@echo "  json       to make JSON files"
+	@echo "  htmlhelp   to make HTML files and a HTML help project"
+	@echo "  qthelp     to make HTML files and a qthelp project"
+	@echo "  applehelp  to make an Apple Help Book"
+	@echo "  devhelp    to make HTML files and a Devhelp project"
+	@echo "  epub       to make an epub"
+	@echo "  latex      to make LaTeX files, you can set PAPER=a4 or PAPER=letter"
+	@echo "  latexpdf   to make LaTeX files and run them through pdflatex"
+	@echo "  latexpdfja to make LaTeX files and run them through platex/dvipdfmx"
+	@echo "  text       to make text files"
+	@echo "  man        to make manual pages"
+	@echo "  texinfo    to make Texinfo files"
+	@echo "  info       to make Texinfo files and run them through makeinfo"
+	@echo "  gettext    to make PO message catalogs"
+	@echo "  changes    to make an overview of all changed/added/deprecated items"
+	@echo "  xml        to make Docutils-native XML files"
+	@echo "  pseudoxml  to make pseudoxml-XML files for display purposes"
+	@echo "  linkcheck  to check all external links for integrity"
+	@echo "  doctest    to run all doctests embedded in the documentation (if enabled)"
+	@echo "  coverage   to run coverage check of the documentation (if enabled)"
+
+clean:
+	rm -rf $(BUILDDIR)/*
+
+html:
+	$(SPHINXBUILD) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html
+	@echo
+	@echo "Build finished. The HTML pages are in $(BUILDDIR)/html."
+
+dirhtml:
+	$(SPHINXBUILD) -b dirhtml $(ALLSPHINXOPTS) $(BUILDDIR)/dirhtml
+	@echo
+	@echo "Build finished. The HTML pages are in $(BUILDDIR)/dirhtml."
+
+singlehtml:
+	$(SPHINXBUILD) -b singlehtml $(ALLSPHINXOPTS) $(BUILDDIR)/singlehtml
+	@echo
+	@echo "Build finished. The HTML page is in $(BUILDDIR)/singlehtml."
+
+pickle:
+	$(SPHINXBUILD) -b pickle $(ALLSPHINXOPTS) $(BUILDDIR)/pickle
+	@echo
+	@echo "Build finished; now you can process the pickle files."
+
+json:
+	$(SPHINXBUILD) -b json $(ALLSPHINXOPTS) $(BUILDDIR)/json
+	@echo
+	@echo "Build finished; now you can process the JSON files."
+
+htmlhelp:
+	$(SPHINXBUILD) -b htmlhelp $(ALLSPHINXOPTS) $(BUILDDIR)/htmlhelp
+	@echo
+	@echo "Build finished; now you can run HTML Help Workshop with the" \
+	      ".hhp project file in $(BUILDDIR)/htmlhelp."
+
+qthelp:
+	$(SPHINXBUILD) -b qthelp $(ALLSPHINXOPTS) $(BUILDDIR)/qthelp
+	@echo
+	@echo "Build finished; now you can run "qcollectiongenerator" with the" \
+	      ".qhcp project file in $(BUILDDIR)/qthelp, like this:"
+	@echo "# qcollectiongenerator $(BUILDDIR)/qthelp/asyncudp.qhcp"
+	@echo "To view the help file:"
+	@echo "# assistant -collectionFile $(BUILDDIR)/qthelp/asyncudp.qhc"
+
+applehelp:
+	$(SPHINXBUILD) -b applehelp $(ALLSPHINXOPTS) $(BUILDDIR)/applehelp
+	@echo
+	@echo "Build finished. The help book is in $(BUILDDIR)/applehelp."
+	@echo "N.B. You won't be able to view it unless you put it in" \
+	      "~/Library/Documentation/Help or install it in your application" \
+	      "bundle."
+
+devhelp:
+	$(SPHINXBUILD) -b devhelp $(ALLSPHINXOPTS) $(BUILDDIR)/devhelp
+	@echo
+	@echo "Build finished."
+	@echo "To view the help file:"
+	@echo "# mkdir -p $$HOME/.local/share/devhelp/asyncudp"
+	@echo "# ln -s $(BUILDDIR)/devhelp $$HOME/.local/share/devhelp/asyncudp"
+	@echo "# devhelp"
+
+epub:
+	$(SPHINXBUILD) -b epub $(ALLSPHINXOPTS) $(BUILDDIR)/epub
+	@echo
+	@echo "Build finished. The epub file is in $(BUILDDIR)/epub."
+
+latex:
+	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	@echo
+	@echo "Build finished; the LaTeX files are in $(BUILDDIR)/latex."
+	@echo "Run \`make' in that directory to run these through (pdf)latex" \
+	      "(use \`make latexpdf' here to do that automatically)."
+
+latexpdf:
+	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	@echo "Running LaTeX files through pdflatex..."
+	$(MAKE) -C $(BUILDDIR)/latex all-pdf
+	@echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
+
+latexpdfja:
+	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	@echo "Running LaTeX files through platex and dvipdfmx..."
+	$(MAKE) -C $(BUILDDIR)/latex all-pdf-ja
+	@echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
+
+text:
+	$(SPHINXBUILD) -b text $(ALLSPHINXOPTS) $(BUILDDIR)/text
+	@echo
+	@echo "Build finished. The text files are in $(BUILDDIR)/text."
+
+man:
+	$(SPHINXBUILD) -b man $(ALLSPHINXOPTS) $(BUILDDIR)/man
+	@echo
+	@echo "Build finished. The manual pages are in $(BUILDDIR)/man."
+
+texinfo:
+	$(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
+	@echo
+	@echo "Build finished. The Texinfo files are in $(BUILDDIR)/texinfo."
+	@echo "Run \`make' in that directory to run these through makeinfo" \
+	      "(use \`make info' here to do that automatically)."
+
+info:
+	$(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
+	@echo "Running Texinfo files through makeinfo..."
+	make -C $(BUILDDIR)/texinfo info
+	@echo "makeinfo finished; the Info files are in $(BUILDDIR)/texinfo."
+
+gettext:
+	$(SPHINXBUILD) -b gettext $(I18NSPHINXOPTS) $(BUILDDIR)/locale
+	@echo
+	@echo "Build finished. The message catalogs are in $(BUILDDIR)/locale."
+
+changes:
+	$(SPHINXBUILD) -b changes $(ALLSPHINXOPTS) $(BUILDDIR)/changes
+	@echo
+	@echo "The overview file is in $(BUILDDIR)/changes."
+
+linkcheck:
+	$(SPHINXBUILD) -b linkcheck $(ALLSPHINXOPTS) $(BUILDDIR)/linkcheck
+	@echo
+	@echo "Link check complete; look for any errors in the above output " \
+	      "or in $(BUILDDIR)/linkcheck/output.txt."
+
+doctest:
+	$(SPHINXBUILD) -b doctest $(ALLSPHINXOPTS) $(BUILDDIR)/doctest
+	@echo "Testing of doctests in the sources finished, look at the " \
+	      "results in $(BUILDDIR)/doctest/output.txt."
+
+coverage:
+	$(SPHINXBUILD) -b coverage $(ALLSPHINXOPTS) $(BUILDDIR)/coverage
+	@echo "Testing of coverage in the sources finished, look at the " \
+	      "results in $(BUILDDIR)/coverage/python.txt."
+
+xml:
+	$(SPHINXBUILD) -b xml $(ALLSPHINXOPTS) $(BUILDDIR)/xml
+	@echo
+	@echo "Build finished. The XML files are in $(BUILDDIR)/xml."
+
+pseudoxml:
+	$(SPHINXBUILD) -b pseudoxml $(ALLSPHINXOPTS) $(BUILDDIR)/pseudoxml
+	@echo
+	@echo "Build finished. The pseudo-XML files are in $(BUILDDIR)/pseudoxml."
diff --git a/vendor/asyncudp/docs/conf.py b/vendor/asyncudp/docs/conf.py
new file mode 100644
index 0000000000..d4733a2a41
--- /dev/null
+++ b/vendor/asyncudp/docs/conf.py
@@ -0,0 +1,291 @@
+# -*- coding: utf-8 -*-
+#
+# asyncudp documentation build configuration file, created by
+# sphinx-quickstart on Sat Apr 25 11:54:09 2015.
+#
+# This file is execfile()d with the current directory set to its
+# containing dir.
+#
+# Note that not all possible configuration values are present in this
+# autogenerated file.
+#
+# All configuration values have a default; values that are commented out
+# serve to show the default.
+
+import sys
+import os
+import shlex
+
+# If extensions (or modules to document with autodoc) are in another directory,
+# add these directories to sys.path here. If the directory is relative to the
+# documentation root, use os.path.abspath to make it absolute, like shown here.
+sys.path.insert(0, os.path.abspath('..'))
+
+import asyncudp
+
+# -- General configuration ------------------------------------------------
+
+# If your documentation needs a minimal Sphinx version, state it here.
+#needs_sphinx = '1.0'
+
+# Add any Sphinx extension module names here, as strings. They can be
+# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
+# ones.
+extensions = [
+    'sphinx.ext.autodoc',
+    'sphinx.ext.viewcode',
+]
+
+# Add any paths that contain templates here, relative to this directory.
+templates_path = ['_templates']
+
+# The suffix(es) of source filenames.
+# You can specify multiple suffix as a list of string:
+# source_suffix = ['.rst', '.md']
+source_suffix = '.rst'
+
+# The encoding of source files.
+#source_encoding = 'utf-8-sig'
+
+# The master toctree document.
+master_doc = 'index'
+
+# General information about the project.
+project = u'asyncudp'
+copyright = u'2019, Erik Moqvist'
+author = u'Erik Moqvist'
+
+# The version info for the project you're documenting, acts as replacement for
+# |version| and |release|, also used in various other places throughout the
+# built documents.
+#
+# The short X.Y version.
+version = asyncudp.__version__
+# The full version, including alpha/beta/rc tags.
+release = asyncudp.__version__
+
+# The language for content autogenerated by Sphinx. Refer to documentation
+# for a list of supported languages.
+#
+# This is also used if you do content translation via gettext catalogs.
+# Usually you set "language" from the command line for these cases.
+language = None
+
+# There are two options for replacing |today|: either, you set today to some
+# non-false value, then it is used:
+#today = ''
+# Else, today_fmt is used as the format for a strftime call.
+#today_fmt = '%B %d, %Y'
+
+# List of patterns, relative to source directory, that match files and
+# directories to ignore when looking for source files.
+exclude_patterns = ['_build']
+
+# The reST default role (used for this markup: `text`) to use for all
+# documents.
+#default_role = None
+
+# If true, '()' will be appended to :func: etc. cross-reference text.
+#add_function_parentheses = True
+
+# If true, the current module name will be prepended to all description
+# unit titles (such as .. function::).
+#add_module_names = True
+
+# If true, sectionauthor and moduleauthor directives will be shown in the
+# output. They are ignored by default.
+#show_authors = False
+
+# The name of the Pygments (syntax highlighting) style to use.
+pygments_style = 'sphinx'
+
+# A list of ignored prefixes for module index sorting.
+#modindex_common_prefix = []
+
+# If true, keep warnings as "system message" paragraphs in the built documents.
+#keep_warnings = False
+
+# If true, `todo` and `todoList` produce output, else they produce nothing.
+todo_include_todos = False
+
+
+# -- Options for HTML output ----------------------------------------------
+
+# The theme to use for HTML and HTML Help pages.  See the documentation for
+# a list of builtin themes.
+html_theme = 'sphinx_rtd_theme'
+
+# Theme options are theme-specific and customize the look and feel of a theme
+# further.  For a list of options available for each theme, see the
+# documentation.
+#html_theme_options = {}
+
+# Add any paths that contain custom themes here, relative to this directory.
+#html_theme_path = []
+
+# The name for this set of Sphinx documents.  If None, it defaults to
+# "<project> v<release> documentation".
+#html_title = None
+
+# A shorter title for the navigation bar.  Default is the same as html_title.
+#html_short_title = None
+
+# The name of an image file (relative to this directory) to place at the top
+# of the sidebar.
+#html_logo = None
+
+# The name of an image file (within the static path) to use as favicon of the
+# docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
+# pixels large.
+#html_favicon = None
+
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+html_static_path = ['_static']
+
+# Add any extra paths that contain custom files (such as robots.txt or
+# .htaccess) here, relative to this directory. These files are copied
+# directly to the root of the documentation.
+#html_extra_path = []
+
+# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
+# using the given strftime format.
+#html_last_updated_fmt = '%b %d, %Y'
+
+# If true, SmartyPants will be used to convert quotes and dashes to
+# typographically correct entities.
+#html_use_smartypants = True
+
+# Custom sidebar templates, maps document names to template names.
+#html_sidebars = {}
+
+# Additional templates that should be rendered to pages, maps page names to
+# template names.
+#html_additional_pages = {}
+
+# If false, no module index is generated.
+#html_domain_indices = True
+
+# If false, no index is generated.
+#html_use_index = True
+
+# If true, the index is split into individual pages for each letter.
+#html_split_index = False
+
+# If true, links to the reST sources are added to the pages.
+#html_show_sourcelink = True
+
+# If true, "Created using Sphinx" is shown in the HTML footer. Default is True.
+#html_show_sphinx = True
+
+# If true, "(C) Copyright ..." is shown in the HTML footer. Default is True.
+#html_show_copyright = True
+
+# If true, an OpenSearch description file will be output, and all pages will
+# contain a <link> tag referring to it.  The value of this option must be the
+# base URL from which the finished HTML is served.
+#html_use_opensearch = ''
+
+# This is the file name suffix for HTML files (e.g. ".xhtml").
+#html_file_suffix = None
+
+# Language to be used for generating the HTML full-text search index.
+# Sphinx supports the following languages:
+#   'da', 'de', 'en', 'es', 'fi', 'fr', 'hu', 'it', 'ja'
+#   'nl', 'no', 'pt', 'ro', 'ru', 'sv', 'tr'
+#html_search_language = 'en'
+
+# A dictionary with options for the search language support, empty by default.
+# Now only 'ja' uses this config value
+#html_search_options = {'type': 'default'}
+
+# The name of a javascript file (relative to the configuration directory) that
+# implements a search results scorer. If empty, the default will be used.
+#html_search_scorer = 'scorer.js'
+
+# Output file base name for HTML help builder.
+htmlhelp_basename = 'asyncudpdoc'
+
+# -- Options for LaTeX output ---------------------------------------------
+
+latex_elements = {
+# The paper size ('letterpaper' or 'a4paper').
+#'papersize': 'letterpaper',
+
+# The font size ('10pt', '11pt' or '12pt').
+#'pointsize': '10pt',
+
+# Additional stuff for the LaTeX preamble.
+#'preamble': '',
+
+# Latex figure (float) alignment
+#'figure_align': 'htbp',
+}
+
+# Grouping the document tree into LaTeX files. List of tuples
+# (source start file, target name, title,
+#  author, documentclass [howto, manual, or own class]).
+latex_documents = [
+  (master_doc, 'asyncudp.tex', u'asyncudp Documentation',
+   u'Erik Moqvist', 'manual'),
+]
+
+# The name of an image file (relative to this directory) to place at the top of
+# the title page.
+#latex_logo = None
+
+# For "manual" documents, if this is true, then toplevel headings are parts,
+# not chapters.
+#latex_use_parts = False
+
+# If true, show page references after internal links.
+#latex_show_pagerefs = False
+
+# If true, show URL addresses after external links.
+#latex_show_urls = False
+
+# Documents to append as an appendix to all manuals.
+#latex_appendices = []
+
+# If false, no module index is generated.
+#latex_domain_indices = True
+
+
+# -- Options for manual page output ---------------------------------------
+
+# One entry per manual page. List of tuples
+# (source start file, name, description, authors, manual section).
+man_pages = [
+    (master_doc, 'asyncudp', u'Asyncudp Documentation',
+     [author], 1)
+]
+
+# If true, show URL addresses after external links.
+#man_show_urls = False
+
+
+# -- Options for Texinfo output -------------------------------------------
+
+# Grouping the document tree into Texinfo files. List of tuples
+# (source start file, target name, title, author,
+#  dir menu entry, description, category)
+texinfo_documents = [
+  (master_doc, 'asyncudp', u'Asyncudp Documentation',
+   author, 'asyncudp', 'One line description of project.',
+   'Miscellaneous'),
+]
+
+# Documents to append as an appendix to all manuals.
+#texinfo_appendices = []
+
+# If false, no module index is generated.
+#texinfo_domain_indices = True
+
+# How to display URL addresses: 'footnote', 'no', or 'inline'.
+#texinfo_show_urls = 'footnote'
+
+# If true, do not generate a @detailmenu in the "Top" node's menu.
+#texinfo_no_detailmenu = False
+
+autodoc_member_order = 'bysource'
diff --git a/vendor/asyncudp/docs/index.rst b/vendor/asyncudp/docs/index.rst
new file mode 100644
index 0000000000..4f8c752f82
--- /dev/null
+++ b/vendor/asyncudp/docs/index.rst
@@ -0,0 +1,55 @@
+.. asyncudp documentation master file, created by
+   sphinx-quickstart on Sat Apr 25 11:54:09 2015.
+   You can adapt this file completely to your liking, but it should at least
+   contain the root `toctree` directive.
+
+.. include:: ../README.rst
+
+Examples
+========
+
+Client
+------
+
+.. code-block:: python
+
+   import asyncio
+   import asyncudp
+
+   async def main():
+       sock = await asyncudp.create_socket(remote_addr=('127.0.0.1', 9999))
+       sock.sendto(b'Hello!')
+       print(await sock.recvfrom())
+       sock.close()
+
+   asyncio.run(main())
+
+Server
+------
+
+.. code-block:: python
+
+   import asyncio
+   import asyncudp
+
+   async def main():
+       sock = await asyncudp.create_socket(local_addr=('127.0.0.1', 9999))
+
+       while True:
+           data, addr = await sock.recvfrom()
+           print(data, addr)
+           sock.sendto(data, addr)
+
+   asyncio.run(main())
+
+Functions and classes
+=====================
+
+.. autofunction:: asyncudp.create_socket
+
+.. autoclass:: asyncudp.Socket
+
+   .. automethod:: asyncudp.Socket.close
+   .. automethod:: asyncudp.Socket.sendto
+   .. automethod:: asyncudp.Socket.recvfrom
+   .. automethod:: asyncudp.Socket.getsockname
diff --git a/vendor/asyncudp/docs/make.bat b/vendor/asyncudp/docs/make.bat
new file mode 100644
index 0000000000..a54309f782
--- /dev/null
+++ b/vendor/asyncudp/docs/make.bat
@@ -0,0 +1,263 @@
+@ECHO OFF
+
+REM Command file for Sphinx documentation
+
+if "%SPHINXBUILD%" == "" (
+	set SPHINXBUILD=sphinx-build
+)
+set BUILDDIR=_build
+set ALLSPHINXOPTS=-d %BUILDDIR%/doctrees %SPHINXOPTS% .
+set I18NSPHINXOPTS=%SPHINXOPTS% .
+if NOT "%PAPER%" == "" (
+	set ALLSPHINXOPTS=-D latex_paper_size=%PAPER% %ALLSPHINXOPTS%
+	set I18NSPHINXOPTS=-D latex_paper_size=%PAPER% %I18NSPHINXOPTS%
+)
+
+if "%1" == "" goto help
+
+if "%1" == "help" (
+	:help
+	echo.Please use `make ^<target^>` where ^<target^> is one of
+	echo.  html       to make standalone HTML files
+	echo.  dirhtml    to make HTML files named index.html in directories
+	echo.  singlehtml to make a single large HTML file
+	echo.  pickle     to make pickle files
+	echo.  json       to make JSON files
+	echo.  htmlhelp   to make HTML files and a HTML help project
+	echo.  qthelp     to make HTML files and a qthelp project
+	echo.  devhelp    to make HTML files and a Devhelp project
+	echo.  epub       to make an epub
+	echo.  latex      to make LaTeX files, you can set PAPER=a4 or PAPER=letter
+	echo.  text       to make text files
+	echo.  man        to make manual pages
+	echo.  texinfo    to make Texinfo files
+	echo.  gettext    to make PO message catalogs
+	echo.  changes    to make an overview over all changed/added/deprecated items
+	echo.  xml        to make Docutils-native XML files
+	echo.  pseudoxml  to make pseudoxml-XML files for display purposes
+	echo.  linkcheck  to check all external links for integrity
+	echo.  doctest    to run all doctests embedded in the documentation if enabled
+	echo.  coverage   to run coverage check of the documentation if enabled
+	goto end
+)
+
+if "%1" == "clean" (
+	for /d %%i in (%BUILDDIR%\*) do rmdir /q /s %%i
+	del /q /s %BUILDDIR%\*
+	goto end
+)
+
+
+REM Check if sphinx-build is available and fallback to Python version if any
+%SPHINXBUILD% 2> nul
+if errorlevel 9009 goto sphinx_python
+goto sphinx_ok
+
+:sphinx_python
+
+set SPHINXBUILD=python -m sphinx.__init__
+%SPHINXBUILD% 2> nul
+if errorlevel 9009 (
+	echo.
+	echo.The 'sphinx-build' command was not found. Make sure you have Sphinx
+	echo.installed, then set the SPHINXBUILD environment variable to point
+	echo.to the full path of the 'sphinx-build' executable. Alternatively you
+	echo.may add the Sphinx directory to PATH.
+	echo.
+	echo.If you don't have Sphinx installed, grab it from
+	echo.http://sphinx-doc.org/
+	exit /b 1
+)
+
+:sphinx_ok
+
+
+if "%1" == "html" (
+	%SPHINXBUILD% -b html %ALLSPHINXOPTS% %BUILDDIR%/html
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The HTML pages are in %BUILDDIR%/html.
+	goto end
+)
+
+if "%1" == "dirhtml" (
+	%SPHINXBUILD% -b dirhtml %ALLSPHINXOPTS% %BUILDDIR%/dirhtml
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The HTML pages are in %BUILDDIR%/dirhtml.
+	goto end
+)
+
+if "%1" == "singlehtml" (
+	%SPHINXBUILD% -b singlehtml %ALLSPHINXOPTS% %BUILDDIR%/singlehtml
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The HTML pages are in %BUILDDIR%/singlehtml.
+	goto end
+)
+
+if "%1" == "pickle" (
+	%SPHINXBUILD% -b pickle %ALLSPHINXOPTS% %BUILDDIR%/pickle
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; now you can process the pickle files.
+	goto end
+)
+
+if "%1" == "json" (
+	%SPHINXBUILD% -b json %ALLSPHINXOPTS% %BUILDDIR%/json
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; now you can process the JSON files.
+	goto end
+)
+
+if "%1" == "htmlhelp" (
+	%SPHINXBUILD% -b htmlhelp %ALLSPHINXOPTS% %BUILDDIR%/htmlhelp
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; now you can run HTML Help Workshop with the ^
+.hhp project file in %BUILDDIR%/htmlhelp.
+	goto end
+)
+
+if "%1" == "qthelp" (
+	%SPHINXBUILD% -b qthelp %ALLSPHINXOPTS% %BUILDDIR%/qthelp
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; now you can run "qcollectiongenerator" with the ^
+.qhcp project file in %BUILDDIR%/qthelp, like this:
+	echo.^> qcollectiongenerator %BUILDDIR%\qthelp\asyncudp.qhcp
+	echo.To view the help file:
+	echo.^> assistant -collectionFile %BUILDDIR%\qthelp\asyncudp.ghc
+	goto end
+)
+
+if "%1" == "devhelp" (
+	%SPHINXBUILD% -b devhelp %ALLSPHINXOPTS% %BUILDDIR%/devhelp
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished.
+	goto end
+)
+
+if "%1" == "epub" (
+	%SPHINXBUILD% -b epub %ALLSPHINXOPTS% %BUILDDIR%/epub
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The epub file is in %BUILDDIR%/epub.
+	goto end
+)
+
+if "%1" == "latex" (
+	%SPHINXBUILD% -b latex %ALLSPHINXOPTS% %BUILDDIR%/latex
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; the LaTeX files are in %BUILDDIR%/latex.
+	goto end
+)
+
+if "%1" == "latexpdf" (
+	%SPHINXBUILD% -b latex %ALLSPHINXOPTS% %BUILDDIR%/latex
+	cd %BUILDDIR%/latex
+	make all-pdf
+	cd %~dp0
+	echo.
+	echo.Build finished; the PDF files are in %BUILDDIR%/latex.
+	goto end
+)
+
+if "%1" == "latexpdfja" (
+	%SPHINXBUILD% -b latex %ALLSPHINXOPTS% %BUILDDIR%/latex
+	cd %BUILDDIR%/latex
+	make all-pdf-ja
+	cd %~dp0
+	echo.
+	echo.Build finished; the PDF files are in %BUILDDIR%/latex.
+	goto end
+)
+
+if "%1" == "text" (
+	%SPHINXBUILD% -b text %ALLSPHINXOPTS% %BUILDDIR%/text
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The text files are in %BUILDDIR%/text.
+	goto end
+)
+
+if "%1" == "man" (
+	%SPHINXBUILD% -b man %ALLSPHINXOPTS% %BUILDDIR%/man
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The manual pages are in %BUILDDIR%/man.
+	goto end
+)
+
+if "%1" == "texinfo" (
+	%SPHINXBUILD% -b texinfo %ALLSPHINXOPTS% %BUILDDIR%/texinfo
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The Texinfo files are in %BUILDDIR%/texinfo.
+	goto end
+)
+
+if "%1" == "gettext" (
+	%SPHINXBUILD% -b gettext %I18NSPHINXOPTS% %BUILDDIR%/locale
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The message catalogs are in %BUILDDIR%/locale.
+	goto end
+)
+
+if "%1" == "changes" (
+	%SPHINXBUILD% -b changes %ALLSPHINXOPTS% %BUILDDIR%/changes
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.The overview file is in %BUILDDIR%/changes.
+	goto end
+)
+
+if "%1" == "linkcheck" (
+	%SPHINXBUILD% -b linkcheck %ALLSPHINXOPTS% %BUILDDIR%/linkcheck
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Link check complete; look for any errors in the above output ^
+or in %BUILDDIR%/linkcheck/output.txt.
+	goto end
+)
+
+if "%1" == "doctest" (
+	%SPHINXBUILD% -b doctest %ALLSPHINXOPTS% %BUILDDIR%/doctest
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Testing of doctests in the sources finished, look at the ^
+results in %BUILDDIR%/doctest/output.txt.
+	goto end
+)
+
+if "%1" == "coverage" (
+	%SPHINXBUILD% -b coverage %ALLSPHINXOPTS% %BUILDDIR%/coverage
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Testing of coverage in the sources finished, look at the ^
+results in %BUILDDIR%/coverage/python.txt.
+	goto end
+)
+
+if "%1" == "xml" (
+	%SPHINXBUILD% -b xml %ALLSPHINXOPTS% %BUILDDIR%/xml
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The XML files are in %BUILDDIR%/xml.
+	goto end
+)
+
+if "%1" == "pseudoxml" (
+	%SPHINXBUILD% -b pseudoxml %ALLSPHINXOPTS% %BUILDDIR%/pseudoxml
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The pseudo-XML files are in %BUILDDIR%/pseudoxml.
+	goto end
+)
+
+:end
diff --git a/vendor/asyncudp/examples/client.py b/vendor/asyncudp/examples/client.py
new file mode 100644
index 0000000000..471b95b79c
--- /dev/null
+++ b/vendor/asyncudp/examples/client.py
@@ -0,0 +1,12 @@
+import asyncio
+import asyncudp
+
+
+async def main():
+    sock = await asyncudp.create_socket(remote_addr=('127.0.0.1', 9999))
+    sock.sendto(b'Hello!')
+    print(await sock.recvfrom())
+    sock.close()
+
+
+asyncio.run(main())
diff --git a/vendor/asyncudp/examples/server.py b/vendor/asyncudp/examples/server.py
new file mode 100644
index 0000000000..b6b1534b95
--- /dev/null
+++ b/vendor/asyncudp/examples/server.py
@@ -0,0 +1,14 @@
+import asyncio
+import asyncudp
+
+
+async def main():
+    sock = await asyncudp.create_socket(local_addr=('127.0.0.1', 9999))
+
+    while True:
+        data, addr = await sock.recvfrom()
+        print(data, addr)
+        sock.sendto(data, addr)
+
+
+asyncio.run(main())
diff --git a/vendor/asyncudp/setup.py b/vendor/asyncudp/setup.py
new file mode 100644
index 0000000000..3e6fdf0a78
--- /dev/null
+++ b/vendor/asyncudp/setup.py
@@ -0,0 +1,29 @@
+#!/usr/bin/env python3
+
+import re
+import setuptools
+from setuptools import find_packages
+
+
+def find_version():
+    return re.search(r"^__version__ = '(.*)'$",
+                     open('asyncudp/version.py', 'r').read(),
+                     re.MULTILINE).group(1)
+
+
+setuptools.setup(
+    name='asyncudp',
+    version=find_version(),
+    description='Asyncio high level UDP sockets.',
+    long_description=open('README.rst', 'r').read(),
+    author='Erik Moqvist',
+    author_email='erik.moqvist@gmail.com',
+    license='MIT',
+    classifiers=[
+        'License :: OSI Approved :: MIT License',
+        'Programming Language :: Python :: 3',
+    ],
+    keywords=['asyncio'],
+    url='https://github.com/eerimoq/asyncudp',
+    packages=find_packages(exclude=['tests']),
+    test_suite="tests")
diff --git a/vendor/asyncudp/tests/__init__.py b/vendor/asyncudp/tests/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/vendor/asyncudp/tests/test_asyncudp.py b/vendor/asyncudp/tests/test_asyncudp.py
new file mode 100644
index 0000000000..d69f0d8547
--- /dev/null
+++ b/vendor/asyncudp/tests/test_asyncudp.py
@@ -0,0 +1,148 @@
+import asyncio
+import unittest
+
+import asyncudp
+
+
+class AsyncudpTest(unittest.TestCase):
+
+    def test_local_addresses(self):
+        asyncio.run(self.local_addresses())
+
+    async def local_addresses(self):
+        server_addr = ('127.0.0.1', 13000)
+        client_addr = ('127.0.0.1', 13001)
+
+        server = await asyncudp.create_socket(local_addr=server_addr)
+        client = await asyncudp.create_socket(local_addr=client_addr)
+
+        client.sendto(b'local_addresses to server', server_addr)
+        data, addr = await server.recvfrom()
+
+        self.assertEqual(data, b'local_addresses to server')
+        self.assertEqual(addr, client_addr)
+
+        server.sendto(b'local_addresses to client', client_addr)
+        data, addr = await client.recvfrom()
+
+        self.assertEqual(data, b'local_addresses to client')
+        self.assertEqual(addr, server_addr)
+
+        server.close()
+        client.close()
+
+    def test_getsockname(self):
+        asyncio.run(self.getsockname())
+
+    async def getsockname(self):
+        addr = ('127.0.0.1', 0)
+        socket = await asyncudp.create_socket(local_addr=addr)
+        actual_addr, actual_port = socket.getsockname()
+        self.assertTrue(actual_port > 0)
+        self.assertEqual(actual_addr, '127.0.0.1')
+        socket.close()
+
+    def test_remote_address(self):
+        asyncio.run(self.remote_address())
+
+    async def remote_address(self):
+        server_addr = ('127.0.0.1', 13000)
+        client_addr = ('127.0.0.1', 13001)
+
+        server = await asyncudp.create_socket(local_addr=server_addr)
+        client = await asyncudp.create_socket(local_addr=client_addr,
+                                              remote_addr=server_addr)
+
+        client.sendto(b'remote_address to server')
+        data, addr = await server.recvfrom()
+
+        self.assertEqual(data, b'remote_address to server')
+        self.assertEqual(addr, client_addr)
+
+        server.close()
+        client.close()
+
+    def test_cancel(self):
+        asyncio.run(self.cancel())
+
+    async def server_main(self, event):
+        server = await asyncudp.create_socket(local_addr=('127.0.0.1', 13000))
+
+        try:
+            await server.recvfrom()
+        except asyncio.CancelledError:
+            server.close()
+            event.set()
+
+    async def cancel(self):
+        event = asyncio.Event()
+        task = asyncio.create_task(self.server_main(event))
+        await asyncio.sleep(1.0)
+        task.cancel()
+        await event.wait()
+
+    def test_context(self):
+        asyncio.run(self.context())
+
+    async def context(self):
+        server_addr = ('127.0.0.1', 13000)
+        client_addr = ('127.0.0.1', 13001)
+
+        server = await asyncudp.create_socket(local_addr=server_addr)
+        client = await asyncudp.create_socket(local_addr=client_addr)
+
+        async with server, client:
+            client.sendto(b'local_addresses to server', server_addr)
+            data, addr = await server.recvfrom()
+
+            self.assertEqual(data, b'local_addresses to server')
+            self.assertEqual(addr, client_addr)
+
+            server.sendto(b'local_addresses to client', client_addr)
+            data, addr = await client.recvfrom()
+
+            self.assertEqual(data, b'local_addresses to client')
+            self.assertEqual(addr, server_addr)
+
+            self.assertEqual(server._transport.is_closing(), False)
+            self.assertEqual(client._transport.is_closing(), False)
+
+        self.assertEqual(server._transport.is_closing(), True)
+        self.assertEqual(client._transport.is_closing(), True)
+
+    def test_packets_queue_max_size(self):
+        asyncio.run(self.packets_queue_max_size())
+
+    async def packets_queue_max_size(self):
+        server = await asyncudp.create_socket(local_addr=('127.0.0.1', 0),
+                                              packets_queue_max_size=1)
+        server_addr = server.getsockname()
+        client = await asyncudp.create_socket(remote_addr=server_addr)
+
+        client.sendto(b'local_addresses to server 1')
+        client.sendto(b'local_addresses to server 2')
+        await asyncio.sleep(1.0)
+        data, _ = await server.recvfrom()
+        self.assertEqual(data, b'local_addresses to server 1')
+
+        client.sendto(b'local_addresses to server 3')
+        data, _ = await server.recvfrom()
+        self.assertEqual(data, b'local_addresses to server 3')
+
+        server.close()
+        client.close()
+
+    def test_create_socket_reuse_port(self):
+        asyncio.run(self.create_socket_reuse_port())
+
+    async def create_socket_reuse_port(self):
+        sock = await asyncudp.create_socket(local_addr=('127.0.0.1', 13003),
+                                            reuse_port=True)
+
+        with self.assertRaises(OSError):
+            await asyncudp.create_socket(local_addr=('127.0.0.1', 13003))
+
+        sock.close()
+        sock2 = await asyncudp.create_socket(local_addr=('127.0.0.1', 13003),
+                                             reuse_port=True)
+        sock2.close()