128 lines
3.7 KiB
C++
128 lines
3.7 KiB
C++
#include "./chunk_picker_systems.hpp"
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#include <solanaceae/ngc_ft1/ngcft1_file_kind.hpp>
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#include "./components.hpp"
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#include "./chunk_picker.hpp"
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#include "./contact_components.hpp"
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#include <cassert>
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#include <iostream>
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namespace Systems {
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void chunk_picker_updates(
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Contact3Registry& cr,
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ObjectRegistry& os_reg,
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const entt::dense_map<Contact3, size_t>& peer_open_requests,
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const ReceivingTransfers& receiving_transfers,
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NGCFT1& nft, // TODO: remove this somehow
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const float delta
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) {
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std::vector<Contact3Handle> cp_to_remove;
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// first, update timers
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cr.view<ChunkPickerTimer>().each([&cr, delta](const Contact3 cv, ChunkPickerTimer& cpt) {
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cpt.timer -= delta;
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if (cpt.timer <= 0.f) {
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cr.emplace_or_replace<ChunkPickerUpdateTag>(cv);
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}
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});
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//std::cout << "number of chunkpickers: " << _cr.storage<ChunkPicker>().size() << ", of which " << _cr.storage<ChunkPickerUpdateTag>().size() << " need updating\n";
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// now check for potentially missing cp
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auto cput_view = cr.view<ChunkPickerUpdateTag>();
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cput_view.each([&cr, &cp_to_remove](const Contact3 cv) {
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Contact3Handle c{cr, cv};
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//std::cout << "cput :)\n";
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if (!c.all_of<Contact::Components::ToxGroupPeerEphemeral, Contact::Components::FT1Participation>()) {
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std::cout << "cput uh nuh :(\n";
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cp_to_remove.push_back(c);
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return;
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}
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if (!c.all_of<ChunkPicker>()) {
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std::cout << "creating new cp!!\n";
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c.emplace<ChunkPicker>();
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c.emplace_or_replace<ChunkPickerTimer>();
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}
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});
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// now update all cp that are tagged
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cr.view<ChunkPicker, ChunkPickerUpdateTag>().each([&cr, &os_reg, &peer_open_requests, &receiving_transfers, &nft, &cp_to_remove](const Contact3 cv, ChunkPicker& cp) {
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Contact3Handle c{cr, cv};
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if (!c.all_of<Contact::Components::ToxGroupPeerEphemeral, Contact::Components::FT1Participation, Components::FT1ChunkSHA1Cache, Components::FT1InfoSHA1>()) {
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cp_to_remove.push_back(c);
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return;
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}
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//std::cout << "cpu :)\n";
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// HACK: expensive, dont do every tick, only on events
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// do verification in debug instead?
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//cp.validateParticipation(c, _os.registry());
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size_t peer_open_request = 0;
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if (peer_open_requests.contains(c)) {
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peer_open_request += peer_open_requests.at(c);
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}
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auto new_requests = cp.updateChunkRequests(
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c,
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os_reg,
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receiving_transfers,
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peer_open_request
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);
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if (new_requests.empty()) {
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// updateChunkRequests updates the unfinished
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// TODO: pull out and check there?
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if (cp.participating_unfinished.empty()) {
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std::cout << "destroying empty useless cp\n";
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cp_to_remove.push_back(c);
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} else {
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// most likely will have something soon
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// TODO: mark dirty on have instead?
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c.get_or_emplace<ChunkPickerTimer>().timer = 10.f;
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}
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return;
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}
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assert(c.all_of<Contact::Components::ToxGroupPeerEphemeral>());
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const auto [group_number, peer_number] = c.get<Contact::Components::ToxGroupPeerEphemeral>();
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for (const auto [r_o, r_idx] : new_requests) {
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auto& cc = r_o.get<Components::FT1ChunkSHA1Cache>();
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const auto& info = r_o.get<Components::FT1InfoSHA1>();
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// request chunk_idx
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nft.NGC_FT1_send_request_private(
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group_number, peer_number,
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static_cast<uint32_t>(NGCFT1_file_kind::HASH_SHA1_CHUNK),
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info.chunks.at(r_idx).data.data(), info.chunks.at(r_idx).size()
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);
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std::cout << "SHA1_NGCFT1: requesting chunk [" << info.chunks.at(r_idx) << "] from " << group_number << ":" << peer_number << "\n";
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}
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// force update every minute
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// TODO: add small random bias to spread load
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c.get_or_emplace<ChunkPickerTimer>().timer = 60.f;
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});
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// unmark all marked
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cr.clear<ChunkPickerUpdateTag>();
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assert(cr.storage<ChunkPickerUpdateTag>().empty());
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for (const auto& c : cp_to_remove) {
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c.remove<ChunkPicker, ChunkPickerTimer>();
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}
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}
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} // Systems
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