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|
use Delta;
use DeltaReader;
use DeltaReceiver;
use ReceivedDelta;
use Snap;
use Storage;
use format;
use gamenet::msg::system;
use packer::Unpacker;
use receiver;
use snap;
use storage;
use warn::Warn;
use warn::wrap;
#[derive(Clone, Debug, Eq, PartialEq)]
pub enum Error {
Receiver(receiver::Error),
Snap(snap::Error),
Storage(storage::Error),
}
#[derive(Clone, Debug, Eq, PartialEq)]
pub enum Warning {
Receiver(receiver::Warning),
Snap(format::Warning),
Storage(storage::Warning),
}
impl From<receiver::Error> for Error {
fn from(err: receiver::Error) -> Error {
Error::Receiver(err)
}
}
impl From<snap::Error> for Error {
fn from(err: snap::Error) -> Error {
Error::Snap(err)
}
}
impl From<storage::Error> for Error {
fn from(err: storage::Error) -> Error {
Error::Storage(err)
}
}
impl From<receiver::Warning> for Warning {
fn from(w: receiver::Warning) -> Warning {
Warning::Receiver(w)
}
}
impl From<format::Warning> for Warning {
fn from(w: format::Warning) -> Warning {
Warning::Snap(w)
}
}
impl From<storage::Warning> for Warning {
fn from(w: storage::Warning) -> Warning {
Warning::Storage(w)
}
}
#[derive(Clone, Default)]
struct ManagerInner {
temp_delta: Delta,
reader: DeltaReader,
storage: Storage,
}
#[derive(Clone, Default)]
pub struct Manager {
inner: ManagerInner,
receiver: DeltaReceiver,
}
impl Manager {
pub fn new() -> Manager {
Default::default()
}
pub fn reset(&mut self) {
self.inner.storage.reset();
self.receiver.reset();
}
pub fn ack_tick(&self) -> Option<i32> {
self.inner.storage.ack_tick()
}
pub fn snap_empty<W, O>(&mut self, warn: &mut W, object_size: O, snap: system::SnapEmpty)
-> Result<Option<&Snap>, Error>
where W: Warn<Warning>,
O: FnMut(u16) -> Option<u32>,
{
let res = self.receiver.snap_empty(wrap(warn), snap);
self.inner.handle_msg(warn, object_size, res)
}
pub fn snap_single<W, O>(&mut self, warn: &mut W, object_size: O, snap: system::SnapSingle)
-> Result<Option<&Snap>, Error>
where W: Warn<Warning>,
O: FnMut(u16) -> Option<u32>,
{
let res = self.receiver.snap_single(wrap(warn), snap);
self.inner.handle_msg(warn, object_size, res)
}
pub fn snap<W, O>(&mut self, warn: &mut W, object_size: O, snap: system::Snap)
-> Result<Option<&Snap>, Error>
where W: Warn<Warning>,
O: FnMut(u16) -> Option<u32>,
{
let res = self.receiver.snap(wrap(warn), snap);
self.inner.handle_msg(warn, object_size, res)
}
}
impl ManagerInner {
fn handle_msg<W, O>(&mut self, warn: &mut W, object_size: O, res: Result<Option<ReceivedDelta>, receiver::Error>)
-> Result<Option<&Snap>, Error>
where W: Warn<Warning>,
O: FnMut(u16) -> Option<u32>,
{
Ok(match res? {
Some(delta) => Some(self.add_delta(warn, object_size, delta)?),
None => None,
})
}
fn add_delta<W, O>(&mut self, warn: &mut W, object_size: O, delta: ReceivedDelta)
-> Result<&Snap, Error>
where W: Warn<Warning>,
O: FnMut(u16) -> Option<u32>,
{
let crc = delta.data_and_crc.map(|d| d.1);
if let Some((data, _)) = delta.data_and_crc {
self.reader.read(wrap(warn), &mut self.temp_delta, object_size, &mut Unpacker::new(data))?;
} else {
self.temp_delta.clear();
}
Ok(self.storage.add_delta(wrap(warn), crc, delta.delta_tick, delta.tick, &self.temp_delta)?)
}
}
|
