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skip guild card file download if checksums match

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This commit is contained in:
Martin Michelsen
2022-07-30 13:08:22 -07:00
parent f4517ab92e
commit 286997188e
5 changed files with 30 additions and 10 deletions
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src/ReceiveCommands.cc
+7 -6
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@@ -1587,12 +1587,13 @@ void process_client_checksum_bb(shared_ptr<ServerState>, shared_ptr<Client> c,
constexpr size_t max_blocked = sizeof(GuildCardFileBB::blocked) / sizeof(GuildCardBB);
switch (command) {
case 0x01E8: { // Check guild card file checksum
check_size_v(data.size(), sizeof(C_GuildCardChecksum_01E8));
// TODO: Presumably this response tells the client whether the file needs
// to be downloaded at all. In the future, we could actually use the
// checksum to skip downloading if the file isn't modified, to save time.
S_GuildCardChecksumResponse_BB_02E8 cmd = {1, 0};
send_command_t(c, 0x02E8, 0x00000000, cmd);
const auto& cmd = check_size_t<C_GuildCardChecksum_01E8>(data);
uint32_t checksum = c->game_data.account()->guild_cards.checksum();
c->log.info("(Guild card file) Server checksum = %08" PRIX32 ", client checksum = %08" PRIX32,
checksum, cmd.checksum.load());
S_GuildCardChecksumResponse_BB_02E8 response = {
(cmd.checksum != checksum), 0};
send_command_t(c, 0x02E8, 0x00000000, response);
break;
}
case 0x03E8: // Download guild card file