Gabriel Kaszewski
41f7e7db10
Init now only starts servers. The session server holds ProcessCreate cap and launches apps on demand. Snake is no longer in the boot manifest.
78 lines
2.3 KiB
Rust
78 lines
2.3 KiB
Rust
use server_framework::{Decode, Encode};
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub struct AppId(u16);
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impl AppId {
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pub const fn new(id: u16) -> Self { Self(id) }
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pub const fn raw(&self) -> u16 { self.0 }
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}
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#[derive(Debug, PartialEq)]
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pub enum SessionRequest {
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Launch { app: AppId },
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Kill { app: AppId },
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ListApps,
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ActiveApp,
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}
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#[derive(Debug, PartialEq)]
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pub enum SessionResponse {
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Launched { app: AppId },
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Killed,
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AppList { count: usize },
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Active { app: AppId },
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NotFound,
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Error,
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}
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impl Encode for SessionRequest {
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fn encode(&self) -> [usize; 4] {
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match self {
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SessionRequest::Launch { app } => [0, app.raw() as usize, 0, 0],
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SessionRequest::Kill { app } => [1, app.raw() as usize, 0, 0],
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SessionRequest::ListApps => [2, 0, 0, 0],
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SessionRequest::ActiveApp => [3, 0, 0, 0],
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}
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}
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}
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impl Decode for SessionRequest {
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fn decode(words: [usize; 4]) -> Option<Self> {
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match words[0] {
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0 => Some(SessionRequest::Launch { app: AppId::new(words[1] as u16) }),
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1 => Some(SessionRequest::Kill { app: AppId::new(words[1] as u16) }),
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2 => Some(SessionRequest::ListApps),
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3 => Some(SessionRequest::ActiveApp),
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_ => None,
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}
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}
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}
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impl Encode for SessionResponse {
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fn encode(&self) -> [usize; 4] {
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match self {
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SessionResponse::Launched { app } => [0, app.raw() as usize, 0, 0],
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SessionResponse::Killed => [1, 0, 0, 0],
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SessionResponse::AppList { count } => [2, *count, 0, 0],
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SessionResponse::Active { app } => [3, app.raw() as usize, 0, 0],
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SessionResponse::NotFound => [4, 0, 0, 0],
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SessionResponse::Error => [5, 0, 0, 0],
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}
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}
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}
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impl Decode for SessionResponse {
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fn decode(words: [usize; 4]) -> Option<Self> {
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match words[0] {
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0 => Some(SessionResponse::Launched { app: AppId::new(words[1] as u16) }),
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1 => Some(SessionResponse::Killed),
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2 => Some(SessionResponse::AppList { count: words[1] }),
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3 => Some(SessionResponse::Active { app: AppId::new(words[1] as u16) }),
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4 => Some(SessionResponse::NotFound),
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5 => Some(SessionResponse::Error),
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_ => None,
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}
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}
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}
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