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AyeZeeBB
94a616feb9
Follow-up to #225. The session still waits 30 minutes in all for a map (checking, the two-minute question, download, install, apply, join), and servers and lobbies still let a player go at 30 minutes. But a download that has begun is no longer cut off at 27 minutes: a large map on a slow connection never came at all that way. - Once the download has begun, the session's deadline is the session's alone. The download goes on (up to its own four hours, as before #225), installs and is applied, and the player is told to join again; no rejoin is tried past the deadline, where the server would turn them away. "Map still downloading" says so when the session stops waiting. - Before the download, the deadline still ends the check and the question. Declining or cancelling still stops it and removes the partial file. - A download whose session has gone is not cancelled by joining another session; a new map need is turned away until it is done. - The 27-minute transfer budget and its completion reserve are gone from map_fetch_policy.h, with their tests; the map download tests cover the new behaviour. - The HTTPS timeout test compiles with warnings as errors (a signed and unsigned comparison), and get_text's stale-file removal is indented again. - README: map downloads described as they now are.
63 lines
3.4 KiB
C++
63 lines
3.4 KiB
C++
#include "Extension/Multiplayer/Net/map_fetch_policy.h"
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#include "Extension/Multiplayer/Net/protocol.h"
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#include <array>
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#include <cstdint>
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#include <iostream>
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#include <limits>
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#include <stdexcept>
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namespace policy = dingosdk::multiplayer::map_fetch_policy;
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void require(bool condition, const char* message) {
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if (!condition) throw std::runtime_error(message);
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}
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int main() {
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try {
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require(policy::second_us == 1000000, "microsecond units");
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require(policy::session_us == 1800 * policy::second_us, "30 minute session");
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require(dingosdk::multiplayer::map_fetch_limit_us == policy::session_us,
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"host protocol and local downloader share the session budget");
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require(policy::confirmation_us == 120 * policy::second_us, "2 minute confirmation");
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require(policy::installed_load_us == 30 * policy::second_us, "30 second installed-map load");
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require(!policy::expired(0, 0) && !policy::expired(0, std::numeric_limits<std::uint64_t>::max()),
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"zero means no deadline");
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require(!policy::host_expired(0, policy::session_us), "host zero means no fetch");
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require(policy::remaining(0, 100) == 0, "zero remaining saturates");
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// Arbitrary process clock epochs must not affect durations or host/client agreement.
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for (const auto origin : std::array<std::uint64_t, 3>{1, 500000000000ull, 800000000000000ull}) {
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for (const auto duration : std::array{
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policy::session_us, policy::confirmation_us, policy::installed_load_us}) {
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const auto deadline = origin + duration;
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require(!policy::expired(deadline, deadline - 1), "before boundary");
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require(policy::expired(deadline, deadline), "exact boundary");
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require(policy::expired(deadline, deadline + 1), "after boundary");
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require(policy::remaining(deadline, deadline - 1) == 1, "last microsecond");
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require(policy::remaining(deadline, deadline) == 0, "exact remaining");
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require(policy::remaining(deadline, deadline + 1) == 0, "remaining never underflows");
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}
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const auto overall = origin + policy::session_us;
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require(!policy::host_expired(origin, origin - 1), "host rejects earlier clock");
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require(!policy::host_expired(origin, overall - 1), "host before boundary");
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require(policy::host_expired(origin, overall), "host exact boundary");
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require(policy::host_expired(origin, overall + 1), "host after boundary");
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require(policy::host_expired(origin, overall) == policy::expired(overall, overall),
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"host and downloader share duration");
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}
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constexpr auto host_clock = 90000000000000ull;
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constexpr auto client_clock = 700000000000ull;
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for (const auto elapsed : std::array{
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policy::session_us - 1, policy::session_us, policy::session_us + 1}) {
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require(policy::host_expired(host_clock, host_clock + elapsed) ==
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policy::expired(client_clock + policy::session_us, client_clock + elapsed),
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"independent host/client epochs yield the same expiration");
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}
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std::cout << "Map fetch policy boundary tests passed\n";
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return 0;
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} catch (const std::exception& error) {
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std::cerr << error.what() << '\n';
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return 1;
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}
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}
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