void
redis_connection::tcp_client_disconnection_handler() {
__CPP_REDIS_LOG(debug, "cpp_redis::network::redis_connection has been disconnected");
/**
* clear buffer
*/
m_buffer.clear();
/**
* clear builder
*/
m_builder.reset();
/**
* call disconnection handler
*/
call_disconnection_handler();
}
void
tcp_client::on_write_available(fd_t) {
__TACOPIE_LOG(info, "write available");
write_result result;
auto callback = process_write(result);
if (!result.success) {
__TACOPIE_LOG(warn, "write operation failure");
disconnect();
}
if (callback) { callback(result); }
if (!result.success) { call_disconnection_handler(); }
}
void
redis_connection::tcp_client_receive_handler(const tcp_client_iface::read_result &result) {
if (!result.success) { return; }
try {
__CPP_REDIS_LOG(debug, "cpp_redis::network::redis_connection receives packet, attempts to build reply");
m_builder << std::string(result.buffer.begin(), result.buffer.end());
}
catch (const redis_error &) {
__CPP_REDIS_LOG(error,
"cpp_redis::network::redis_connection could not build reply (invalid format), disconnecting");
call_disconnection_handler();
return;
}
while (m_builder.reply_available()) {
__CPP_REDIS_LOG(debug, "cpp_redis::network::redis_connection reply fully built");
auto reply = m_builder.get_front();
m_builder.pop_front();
if (m_reply_callback) {
__CPP_REDIS_LOG(debug, "cpp_redis::network::redis_connection executes reply callback");
m_reply_callback(*this, reply);
}
}
try {
tcp_client_iface::read_request request = {__CPP_REDIS_READ_SIZE,
std::bind(&redis_connection::tcp_client_receive_handler, this,
std::placeholders::_1)};
m_client->async_read(request);
}
catch (const std::exception &) {
/**
* Client disconnected in the meantime
*/
}
}
