ronag / tasket

tasket

Example:

tasket::executor executor;

broadcast_node<void*> end;

generator_node<void*, std::string> in(executor, [&](tasket::pull_type<void*>& source, tasket::push_type<std::optional<std::string>>& sink)
{
	std::ifstream infile("infile.txt");

	while (true)
	{
		std::string str;
		{					
			tasket::scoped_oversubscription oversubscribe;
			if (!std::getline(infile, str))
				break;
		}
		sink(str);
	}
	sink(nullptr);
});

generator_node<std::optional<std::string>>, char> transform(executor, [&](tasket::pull_type<std::optional<std::string>>>& source, tasket::push_type<char>& sink)
{
	for (auto str : source)
	{
		if (!str)
			continue;

		for (auto c : *str)
		{
			sink(c);
			sink(' ');
		}
	}
	sink(nullptr);
});

generator_node<std::string, void*> out(executor, [&](tasket::pull_type<std::optional<std::string>>>& source, tasket::push_type<void*>& sink)
{
	std::ofstream outfile("outfile.txt");

	for (auto c : source)
	{
		if (!c)
			continue;

		tasket::scoped_oversubscription oversubscribe;
		outfile << *c;
	}
	sink(nullptr);
});

make_edge(in, transform);
make_edge(transform, out);
make_edge(out, end);

in.try_put(nullpt, nullptr); // Start

executor.wait();