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|
//! Contains the necessary ingredients to start a graf karto world server.
use crate::net::server::ConnectionManager;
use crate::net::Cargo;
use crate::world::World;
use std::io;
use std::net::{Ipv4Addr, Ipv6Addr, SocketAddr};
use std::sync::atomic::{AtomicBool, Ordering};
use std::sync::Arc;
use std::thread::{self, JoinHandle};
/// The default port the dedicated graf karto server runs on.
pub const DEFAULT_PORT: u16 = 44309;
fn unspecified(port: u16, ipv4: bool) -> SocketAddr {
if ipv4 {
SocketAddr::new(Ipv4Addr::UNSPECIFIED.into(), port)
} else {
SocketAddr::new(Ipv6Addr::UNSPECIFIED.into(), port)
}
}
/// Starts a thread for the server and tries to bind to the specified port. If the
/// port cannot be bound to it fails returning an error, otherwise the join handle
/// for the server thread is returned.
pub fn start_with_port(port: u16, ipv4: bool) -> Result<JoinHandle<()>, io::Error> {
let addr = unspecified(port, ipv4);
let conn_man = ConnectionManager::start(addr)?;
Ok(start(conn_man).0)
}
/// Starts a thread on any free system port. Returns an error in case that's not
/// possible.
pub fn start_any_port(ipv4: bool) -> Result<(JoinHandle<()>, Arc<AtomicBool>, u16), io::Error> {
let addr = unspecified(0, ipv4);
let conn_man = ConnectionManager::start(addr)?;
let port = conn_man.port();
let (handle, running) = start(conn_man);
Ok((handle, running, port))
}
fn start(conn_man: ConnectionManager<Cargo>) -> (JoinHandle<()>, Arc<AtomicBool>) {
info!("Server started on port {}", conn_man.port());
let running = Arc::new(AtomicBool::new(true));
let running_cl = running.clone();
let mut world = World::new();
let handle = thread::spawn(move || {
while running_cl.load(Ordering::Relaxed) {
if let Some((_user, cargo)) = conn_man.next_packet() {
match cargo {
Cargo::AddRoom(room) => {
let room_id = world.push_room(room.clone());
conn_man.broadcast(Cargo::SetRoom((room_id, room)));
}
Cargo::AddIcon(icon) => {
let icon_id = world.push_icon(icon.clone());
conn_man.broadcast(Cargo::SetIcon((icon_id, icon)));
}
Cargo::AddWall(wall) => {
let wall_id = world.push_wall(wall.clone());
conn_man.broadcast(Cargo::SetWall((wall_id, wall)));
}
Cargo::SetRoom((id, new)) => {
if let Some(old) = world.get_room_mut(id) {
*old = new;
} else {
error!(
"Unable to change room. Room with id `{}` does not exist.",
id
);
}
}
Cargo::SetIcon((id, new)) => {
if let Some(old) = world.get_icon_mut(id) {
*old = new;
} else {
error!(
"Unable to change icon. Icon with id `{}` does not exist.",
id
);
}
}
Cargo::SetWall((id, new)) => {
if let Some(old) = world.get_wall_mut(id) {
*old = new;
} else {
error!(
"Unable to change wall. Wall with id `{}` does not exist.",
id
);
}
}
Cargo::ClearAll => {
world.clear();
conn_man.broadcast(Cargo::ClearAll);
}
Cargo::Remove(id) => {
if world.remove(id) {
conn_man.broadcast(Cargo::Remove(id));
} else {
error!("Unable to remove item. No item with id `{}` found.", id);
}
}
Cargo::ApplyMatrix((_id, _matrix)) => unimplemented!(),
Cargo::AddMapData(_) | Cargo::UpdateMapData(_) => {
error!("This packet is not allowed in the client -> server direction");
}
}
}
}
});
(handle, running)
}
|
