Use thread pool singleton #25

	on:
	workflow_dispatch:
	push:
	# branches: [ "master", "api-v2", "asio" ]
	paths:
	- '**.h'
	- '**.md'
	- '**doxygen.yml'
	- '**doxyfile'
	pull_request:
	# branches: [ "master", "api-v2", "asio" ]
	paths:
	- '**.h'
	- '**.md'
	- '**doxygen.yml'
	- '**doxyfile'

	name: Build doxygen documentation
	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- name: Install Doxygen and Dot
	run: sudo apt install doxygen graphviz

	- name: Run doxygen
	run: doxygen doxyfile

	- name: Upload artifact
	uses: actions/upload-pages-artifact@v2
	with:
	path: docs/html

	deploy:
	runs-on: ubuntu-latest
	needs:
	- build

	permissions:
	pages: write
	id-token: write

	environment:
	name: github-pages
	url: ${{ steps.deployment.outputs.page_url }}

	steps:
	- name: Deploy to Github Pages
	id: deployment
	uses: actions/deploy-pages@v2

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