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refactor(network): extract packet header decoding into function

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zhenyan121
2026-06-26 19:20:14 +08:00
parent db7b67f265
commit c7c6ee9a61
2 changed files with 14 additions and 23 deletions
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19
src/gameplay/network_client.cpp
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@@ -45,29 +45,24 @@ asio::awaitable<void> NetworkClient::connect(std::string ip, int port) {
asio::awaitable<void> NetworkClient::read_loop() {
try {
while (true) {
std::array<char, HEADER_LEN> header;
co_await asio::async_read(m_socket, asio::buffer(header),
std::array<char, HEADER_LEN> header_buffer;
co_await asio::async_read(m_socket, asio::buffer(header_buffer),
asio::use_awaitable);
uint32_t total_len_net;
std::memcpy(&total_len_net, header.data(), sizeof(total_len_net));
uint32_t total_len = ntohl(total_len_net);
auto header = decode_packet_header(header_buffer);
uint32_t total_len = HEADER_LEN + header.compressed_size;
uint16_t cmd_id_net;
std::memcpy(&cmd_id_net, header.data() + 4, sizeof(cmd_id_net));
uint16_t cmd_id = ntohs(cmd_id_net);
if (total_len < HEADER_LEN || total_len > MAX_PACKET_SIZE) {
throw std::runtime_error("invalid packet length");
}
uint32_t body_len = total_len - HEADER_LEN;
std::vector<uint8_t> body_data(body_len);
if (body_len > 0) {
std::vector<uint8_t> body_data(header.compressed_size);
if (header.compressed_size > 0) {
co_await asio::async_read(m_socket, asio::buffer(body_data),
asio::use_awaitable);
}
constexpr auto& to_num = std::to_underlying<PacketEnum>;
switch (cmd_id) {
switch (header.cmd) {
case to_num(PacketEnum::LOGIN_RSP): {
LoginRsp rsp;
Logger::info("Client: Receive Login rsp");