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fix: optimize turtle monster move wrapped parsing

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Kelsi 2026-03-14 22:01:26 -07:00
parent bce1f4d211
commit f44ef7b9ea
2 changed files with 44 additions and 24 deletions
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49
src/game/game_handler.cpp
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@ -16290,6 +16290,22 @@ void GameHandler::handleMonsterMove(network::Packet& packet) {
LOG_WARNING(msg, " (occurrence=", failCount, ")");
}
};
auto logWrappedFallbackUsed = [&]() {
static uint32_t wrappedFallbackCount = 0;
++wrappedFallbackCount;
if (wrappedFallbackCount <= 10 || (wrappedFallbackCount % 100) == 0) {
LOG_WARNING("SMSG_MONSTER_MOVE parsed via wrapped-subpacket fallback",
" (occurrence=", wrappedFallbackCount, ")");
}
};
auto logWrappedUncompressedFallbackUsed = [&]() {
static uint32_t wrappedUncompressedFallbackCount = 0;
++wrappedUncompressedFallbackCount;
if (wrappedUncompressedFallbackCount <= 10 || (wrappedUncompressedFallbackCount % 100) == 0) {
LOG_WARNING("SMSG_MONSTER_MOVE parsed via uncompressed wrapped-subpacket fallback",
" (occurrence=", wrappedUncompressedFallbackCount, ")");
}
};
auto stripWrappedSubpacket = [&](const std::vector<uint8_t>& bytes, std::vector<uint8_t>& stripped) -> bool {
if (bytes.size() < 3) return false;
uint8_t subSize = bytes[0];
@ -16331,22 +16347,31 @@ void GameHandler::handleMonsterMove(network::Packet& packet) {
std::vector<uint8_t> stripped;
bool hasWrappedForm = stripWrappedSubpacket(decompressed, stripped);
// Try unwrapped payload first (common form), then wrapped-subpacket fallback.
network::Packet decompPacket(packet.getOpcode(), decompressed);
if (!packetParsers_->parseMonsterMove(decompPacket, data)) {
if (!hasWrappedForm) {
logMonsterMoveParseFailure("Failed to parse SMSG_MONSTER_MOVE (decompressed " +
std::to_string(destLen) + " bytes)");
return;
}
bool parsed = false;
if (hasWrappedForm) {
network::Packet wrappedPacket(packet.getOpcode(), stripped);
if (!packetParsers_->parseMonsterMove(wrappedPacket, data)) {
if (packetParsers_->parseMonsterMove(wrappedPacket, data)) {
parsed = true;
logWrappedFallbackUsed();
}
}
if (!parsed) {
network::Packet decompPacket(packet.getOpcode(), decompressed);
if (packetParsers_->parseMonsterMove(decompPacket, data)) {
parsed = true;
}
}
if (!parsed) {
if (hasWrappedForm) {
logMonsterMoveParseFailure("Failed to parse SMSG_MONSTER_MOVE (decompressed " +
std::to_string(destLen) + " bytes, wrapped payload " +
std::to_string(stripped.size()) + " bytes)");
return;
} else {
logMonsterMoveParseFailure("Failed to parse SMSG_MONSTER_MOVE (decompressed " +
std::to_string(destLen) + " bytes)");
}
LOG_WARNING("SMSG_MONSTER_MOVE parsed via wrapped-subpacket fallback");
return;
}
} else if (!packetParsers_->parseMonsterMove(packet, data)) {
// Some realms occasionally embed an extra [size|opcode] wrapper even when the
@ -16355,7 +16380,7 @@ void GameHandler::handleMonsterMove(network::Packet& packet) {
if (stripWrappedSubpacket(rawData, stripped)) {
network::Packet wrappedPacket(packet.getOpcode(), stripped);
if (packetParsers_->parseMonsterMove(wrappedPacket, data)) {
LOG_WARNING("SMSG_MONSTER_MOVE parsed via uncompressed wrapped-subpacket fallback");
logWrappedUncompressedFallbackUsed();
} else {
logMonsterMoveParseFailure("Failed to parse SMSG_MONSTER_MOVE");
return;