Feature| afetch update, scheduler rework

ableos/Cargo.lock

@@ -802,7 +802,7 @@ checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 [[package]]
 name = "versioning"
 version = "0.1.2"
-source = "git+https://git.ablecorp.us/able/versioning#ef472283e6e7a2e395ee56434087b3a6fad53ff2"
+source = "git+https://git.ablecorp.us/able/versioning#b86e53ab8461ee4f28807bf2254d543f6d8f4727"
 
 [[package]]
 name = "vga"

ableos/Cargo.toml

@@ -41,6 +41,8 @@ test-args = [
     "stdio",
 ]
 
+
+
 [dependencies]
 linked_list_allocator = "0.9.0"
 lliw = "0.2.0"

ableos/src/arch/riscv/mod.rs

@@ -70,3 +70,7 @@ pub fn shutdown() {}
 
 use crate::print;
 use crate::println;
+
+pub fn generate_process_pass() -> u128 {
+    123
+}

ableos/src/arch/x86_64/init.rs

@@ -1,5 +1,9 @@
 // #![allow(clippy::print_literal)]
-use crate::{logger, scheduler::SCHEDULER, serial_println};
+use crate::{
+    logger,
+    scheduler::{capabilities::Capabilities, SCHEDULER},
+    serial_println,
+};
 
 use super::{gdt, interrupts};
 
@@ -20,10 +24,17 @@ pub fn init() {
     }
     gdt::init();
 
-    use crate::scheduler::Priority::High;
+    use crate::scheduler::priority::Priority::High;
+    use crate::stdio::StdIO;
     let mut scheduler = SCHEDULER.lock();
-    let process_0 = scheduler.new_process(High);
+    let process_0 = scheduler.new_process(
+        Capabilities::empty(),
+        High,
+        "".to_string(),
+        StdIO::new(crate::stdio::Device::VTerm),
+    );
     scheduler.add_process(process_0);
+
     drop(scheduler);
 
     interrupts::init_idt();

ableos/src/arch/x86_64/mod.rs

@@ -47,3 +47,13 @@ pub fn sloop() -> ! {
         hlt();
     }
 }
+
+// TODO: Split up into the randomness and the password generation
+pub fn generate_process_pass() -> u128 {
+    // TODO: Move this into entropy_pool module
+    use rdrand::RdRand;
+    let gen = RdRand::new().unwrap();
+
+    let ret = (gen.try_next_u64().unwrap() as u128) << 64 | (gen.try_next_u64().unwrap() as u128);
+    ret
+}

ableos/src/driver_traits/serial.rs

@@ -1,4 +1,35 @@
-pub trait Serial {
+use kernel::device_interface::character::CharacterDevice;
-    fn print();
+
-    fn recieve();
+pub struct Serial {
+    pub base: usize,
+}
+impl CharacterDevice for Serial {
+    fn can_read(&self) -> bool {
+        true
+    }
+
+    fn can_write(&self) -> bool {
+        true
+    }
+
+    fn read_char(&mut self) -> Option<char> {
+        todo!()
+    }
+
+    fn write_char(&mut self, c: char) -> bool {
+        todo!()
+    }
+
+    fn reset(&mut self) {
+        todo!()
+    }
+
+    fn initialize(&mut self) -> bool {
+        false
+    }
+}
+pub fn new_serial_test() {
+    let mut serial = Serial { base: 0x3F8 };
+    serial.initialize();
+    serial.write_char('a');
 }

ableos/src/experiments/mod.rs

@@ -4,6 +4,7 @@ pub mod absi;
 pub mod clip;
 pub mod futex;
 // pub mod info;
+pub mod info;
 pub mod kinfo;
 pub mod mail;
 pub mod server;

ableos/src/kmain.rs

@@ -30,13 +30,10 @@ pub fn kernel_main() -> ! {
         log::set_max_level(log::LevelFilter::Off);
     }
     let mut scheduler = SCHEDULER.lock();
-    use crate::scheduler::Priority::*;
+    for proc in &scheduler.execution_queue {
-    let mut process_1 = scheduler.new_process(High);
+        trace!("{:?}", proc);
-    process_1.capabilities.files = FileAccess::Some(vec![]);
-    scheduler.add_process(process_1);
-    for ref_process in &scheduler.list {
-        trace!("{:?}", ref_process);
     }
+
     drop(scheduler);
 
     // start_facepalm();
@@ -54,29 +51,18 @@ pub fn cpu_socket_startup() {
 }
 
 pub fn log_version_data() {
-    info!("{} v{:?}", RELEASE_TYPE, KERNEL_VERSION);
+    info!("{} v{}", RELEASE_TYPE, KERNEL_VERSION);
     info!(
-        "Brand String: ",
+        "Brand String: {}",
-        // master().unwrap().brand_string().unwrap()
+        master().unwrap().brand_string().unwrap()
     );
 }
 
-// TODO: Split up into the randomness and the password generation
+use crate::info::master;
-pub fn generate_process_pass() -> u128 {
-    // TODO: Move this into entropy_pool module
-    // use rdrand::RdRand;
-    // let gen = RdRand::new().unwrap();
-
-    // TODO: Split off into process module
-    // let ret = (gen.try_next_u64().unwrap() as u128) << 64 | (gen.try_next_u64().unwrap() as u128);
-    // ret
-    123
-}
 
 use kernel::KERNEL_VERSION;
 
+use crate::scheduler::SCHEDULER;
 use crate::{
-    boot_conf::KernelConfig,
+    boot_conf::KernelConfig, scheduler::capabilities::FileAccess, systeminfo::RELEASE_TYPE,
-    scheduler::{capabilities::FileAccess, SCHEDULER},
-    systeminfo::RELEASE_TYPE,
 };

ableos/src/lib.rs

@@ -110,3 +110,5 @@ pub mod prelude;
 
 #[prelude_import]
 pub use prelude::rust_2021::*;
+
+pub mod stdio;

ableos/src/rhai_shell/balloon.txt

@@ -0,0 +1,11 @@
+    ,-""""-.         OS: AbleOS
+  ,'      _ `.       Host: {}
+ /       )_)  \      Kernel: AKern-{}-v{}
+:              :     Uptime: {}
+\              /     Packages: None
+ \            /      Shell: RhaiShell
+  `.        ,'       Resolution: 640x480
+    `.    ,'         Terminal: VGABuffer
+      `.,'           CPU: {}
+       /\`.   ,-._   GPU: VGA Compatible 
+           `-'       Memory: {}/{}

ableos/src/rhai_shell/mod.rs

@@ -35,9 +35,12 @@ lazy_static::lazy_static!(
 );
 
 use rhai::Engine;
+use x86_64::instructions::interrupts::{disable, enable};
 
+use crate::info::master;
 use crate::time::fetch_time;
 use crate::wasm_jumploader::interp;
+use crate::{allocator, ALLOCATOR};
 use crate::{
     arch::{shutdown, sloop},
     systeminfo::{KERNEL_VERSION, RELEASE_TYPE},
@@ -49,14 +52,24 @@ pub fn afetch() {
 
     let tick_time = fetch_time();
 
-    println!(
+    disable();
-        "OS: AbleOS
+    let allocator = ALLOCATOR.lock();
-Host: {}
+    let size = allocator.size();
-Kernel: AKern-{}-v{}
+    let used = allocator.used();
-Uptime: {}",
+    enable();
-        kstate.hostname, RELEASE_TYPE, KERNEL_VERSION, tick_time
-    );
 
+    // let mem = format!("{}/{}", used, size);
+    println!(
+        include_str!("balloon.txt"),
+        kstate.hostname,
+        RELEASE_TYPE,
+        KERNEL_VERSION,
+        tick_time,
+        master().unwrap().brand_string().unwrap(),
+        // mem
+        used,
+        size
+    );
     drop(kstate);
 }
 pub fn set_hostname(name: String) {

ableos/src/scheduler/mod.rs

@@ -1,197 +1,96 @@
-// #![warn(missing_docs)]
+use crate::{arch::generate_process_pass, stdio::StdIO};
 
-//! The standard ableOS scheduler named
+use crate::scheduler::capabilities::Capabilities;
-//!
-//! # Notes
-//! The scheduler is also responsible for choosing the priority of a process.
-//! The scheduler is responsible for choosing which process to execute next.
 
+use kernel::proccess::PID;
 pub mod capabilities;
+pub mod priority;
 pub mod proc;
-
+use priority::Priority;
-mod new_sched;
+use proc::Process;
-use proc::{Process, PID};
+/// Add additional wake conditions to the list
-
+#[derive(Clone, Debug)]
-#[cfg(test)]
+pub enum WakeCondition {
-mod tests;
+    /// Wake when the process has been blocked for a certain amount of time  
-
+    TimerInterrupt(u64),
-use crate::kmain::generate_process_pass;
+    SocketRead(PID),
-
+    SocketWrite(PID),
-use self::capabilities::Capabilities;
+    SocketOpen(PID),
-
+    SocketClose(PID),
-lazy_static::lazy_static!(
+    // HardwareEvent,
-        /// The standard implementation for ableOS
-        pub static ref SCHEDULER: spin::Mutex<Scheduler> = spin::Mutex::new(Scheduler::new());
-
-);
-
-/// Scheduler priority model
-#[derive(Clone, Copy, Debug)]
-pub enum Priority {
-    /// Exclusively Kernel space | 20 Timer Tick execution time
-    High,
-    /// Kernel / User space | 15 Timer Tick execution time
-    Medium,
-    /// low priority userspace code | 10 Timer Tick execution time
-    Low,
 }
 
+// NOTE: Define what is a sleeping process in the context of the ableOS kernel.
+// Blocked processes are processes that are waiting for a certain event to occur.
 #[derive(Clone, Debug)]
-pub enum FileAccessTypes {
+pub struct BlockedProcess {
-    All,
+    pub pid: PID,
-    Some(Vec<u8>),
+    pub wake_condition: WakeCondition,
-    None,
 }
 
-///  This structure handles the process scheduling and execution
-///
-/// # Example
-/// ```
-/// use crate::scheduler::Priority;
-/// use crate::scheduler::Scheduler;
-///
-/// let mut scheduler = Scheduler::new();
-///
-/// let pid = scheduler.new_process(Priority::High);
-/// scheduler.run_process(pid);
-/// ```
-#[derive(Clone, Debug)]
 pub struct Scheduler {
-    /// The highest free process ID
     pub free_pid: PID,
-    /// The execution time of the current process in ticks
     pub process_exec_time: u64,
-    /// The list of processes
+    pub execution_queue: Vec<Process>,
-    pub list: Vec<Process>,
+    pub sleeping_queue: Vec<BlockedProcess>,
+    pub blocked_queue: Vec<BlockedProcess>,
+    // / All timed processes sorted by wake time
 }
-
 impl Scheduler {
     /// Create a new scheduler
-    ///
-    /// # Example
-    /// ```
-    /// use ableos::scheduler::Priority;
-    /// let mut scheduler = Scheduler::new();
-    /// ```
     pub fn new() -> Self {
         Self {
-            free_pid: PID(0),
+            free_pid: 0,
             process_exec_time: 0,
-            list: Vec::new(),
+            execution_queue: Vec::new(),
+            sleeping_queue: Vec::new(),
+            blocked_queue: Vec::new(),
         }
     }
 
     /// Change the current process to the next process in the list
-    ///
-    /// # Example
-    ///
-    /// ```
-    /// let mut scheduler = scheduler();
-    /// let mut process = scheduler.next_process();
-    /// ```
-    ///
-    /// # Panics
-    ///
-    /// Panics if there are no processes in the list
     pub fn next_process(&mut self) {
         self.process_exec_time = 0;
-        let previous_task = self.list[0].clone();
+        let previous_task = self.execution_queue[0].clone();
-        self.list.remove(0);
+        self.execution_queue.remove(0);
-        self.list.push(previous_task);
+        self.execution_queue.push(previous_task);
     }
 
-    /// Creates a new process
+    pub fn add_process(&mut self, mut process: Process) {
-    ///
+        process.pid = self.free_pid;
-    /// # Arguments
+        self.free_pid += 1;
-    ///
+        self.execution_queue.push(process);
-    /// * `priority` - The priority of the process
+    }
-    ///
+
-    /// # Example
+    pub fn new_process(
-    ///
+        &mut self,
-    /// ```
+        capabilities: Capabilities,
-    /// let mut scheduler = scheduler();
+        priority: Priority,
-    /// let mut process = scheduler.new_process(Priority::Medium);
+        working_dir: String,
-    /// ```
+        stdio: StdIO,
-    pub fn new_process(&mut self, priority: Priority) -> Process {
+    ) -> Process {
-        let process = Process {
+        let mut process = Process {
-            id: self.free_pid.clone(),
+            pid: 0,
-            password: generate_process_pass(),
-            capabilities: Capabilities::empty(),
             priority,
-            working_dir: "todo!()".to_string(),
+            working_dir,
+            stdio,
+            password: generate_process_pass(),
+            capabilities,
         };
-        // self.free_pid.0 += 1;
-        // self.list.push(process);
         process
     }
-    /// Add a created process to the scheduler
-    ///
-    /// # Arguments
-    ///
-    /// * `process` - The process to add
-    ///
-    /// # Example
-    ///
-    /// ```
-    /// let mut scheduler = Scheduler::new();
-    /// let mut process = scheduler.new_process(Priority::Medium);
-    /// scheduler.add_process(process);
-    /// ```
-    pub fn add_process(&mut self, process: Process) {
-        self.list.push(process);
 
-        self.free_pid.0 += 1;
+    pub fn sleep_process(&mut self, process: &mut Process) {
-    }
+        let sleeping_process = BlockedProcess {
-    /// Terminate the process with the matching PID
+            pid: process.pid,
-    ///
+            wake_condition: WakeCondition::TimerInterrupt(0),
-    /// # Arguments
+        };
-    ///
-    /// * `pid` - The PID of the process to terminate
-    ///
-    /// # Example
-    ///
-    /// ```
-    /// let mut scheduler = scheduler();
-    /// let mut process = scheduler.new_process(Priority::Medium);
-    /// scheduler.terminate_process(process.id);
-    /// ```
-    pub fn term_process(&mut self, pid: PID) {
-        let mut process_index = 0;
-        for x in &self.list {
-            if x.id == pid {
-                self.list.remove(process_index);
-                break;
-            }
-            process_index += 1
-        }
-    }
-    /// Bump the current process' execution time
-    ///
-    /// # Example
-    ///
-    /// ```
-    /// let mut scheduler = scheduler();
-    /// let mut process = scheduler.new_process(Priority::Medium);
-    /// scheduler.bump_exec();
-    /// ```
-    pub fn bump_exec(&mut self) {
-        self.process_exec_time += 1;
 
-        use Priority::*;
+        self.sleeping_queue.push(sleeping_process.clone());
-        if self.list.len() > 0 {
+        self.execution_queue.remove(0);
-            match (self.process_exec_time, self.list[0].priority) {
-                (20, High) => {
-                    self.next_process();
-                }
-                (15, Medium) => {
-                    self.next_process();
-                }
-                (10, Low) => {
-                    self.next_process();
-                }
-
-                (_, _) => {}
-            }
-        }
     }
 }
+
+lazy_static::lazy_static! {
+    pub static ref SCHEDULER: spin::Mutex<Scheduler> = spin::Mutex::new(Scheduler::new());
+}

ableos/src/scheduler/new_sched.rs

@@ -1,86 +0,0 @@
-use crate::{
-    kmain::generate_process_pass,
-    scheduler::capabilities::Capabilities,
-    scheduler::proc::{Process, PID},
-    scheduler::Priority,
-};
-/// Add additional wake conditions to the list
-pub enum WakeCondition {
-    /// Wake when the process has been blocked for a certain amount of time  
-    TimerInterrupt(u64),
-    SocketRead(PID),
-    SocketWrite(PID),
-    SocketOpen(PID),
-    SocketClose(PID),
-    // HardwareEvent,
-}
-
-// NOTE: Define what is a sleeping process in the context of the ableOS kernel.
-// Blocked processes are processes that are waiting for a certain event to occur.
-pub struct BlockedProcess {
-    pub pid: PID,
-    pub wake_time: u64,
-}
-
-pub struct Scheduler {
-    pub free_pid: PID,
-    pub process_exec_time: u64,
-    pub execution_queue: Vec<Process>,
-    pub sleeping_queue: Vec<Process>,
-    // pub blocked_queue: Vec<BlockedProcess>,
-    // / All timed processes sorted by wake time
-    // pub timed_blocked_queue: Vec<BlockedProcess>,
-}
-impl Scheduler {
-    /// Create a new scheduler
-    pub fn new() -> Self {
-        Self {
-            free_pid: PID(0),
-            process_exec_time: 0,
-            execution_queue: Vec::new(),
-            sleeping_queue: Vec::new(),
-        }
-    }
-
-    /// Change the current process to the next process in the list
-    pub fn next_process(&mut self) {
-        self.process_exec_time = 0;
-        let previous_task = self.execution_queue[0].clone();
-        self.execution_queue.remove(0);
-        self.execution_queue.push(previous_task);
-    }
-
-    /// Creates a new process
-    /// # Arguments
-    /// * `priority` - The priority of the process
-    /// # Example
-    ///
-    /// ```
-    /// let mut scheduler = scheduler();
-    /// let mut process = scheduler.new_process(Priority::Medium);
-    /// ```
-    ///
-    /// TODO: Add a priority queue
-    /// TODO: Add a process queue
-    pub fn new_process(&mut self, priority: Priority) -> Process {
-        let process = Process {
-            id: self.free_pid,
-            password: generate_process_pass(),
-            priority,
-            capabilities: Capabilities::empty(),
-            working_dir: "todo!()".to_string(),
-        };
-        self.free_pid.0 += 1;
-        process
-    }
-
-    pub fn sleep_process(&mut self, process: &mut Process) {
-        let sleeping_process = BlockedProcess {
-            pid: process.id,
-            wake_time: 0,
-        };
-
-        self.sleeping_queue.push(process.clone());
-        self.execution_queue.remove(0);
-    }
-}

ableos/src/scheduler/priority.rs

@@ -0,0 +1,10 @@
+/// Scheduler priority model
+#[derive(Clone, Copy, Debug)]
+pub enum Priority {
+    /// Exclusively Kernel space | 20 Timer Tick execution time
+    High,
+    /// Kernel / User space | 15 Timer Tick execution time
+    Medium,
+    /// low priority userspace code | 10 Timer Tick execution time
+    Low,
+}

ableos/src/scheduler/proc.rs

@@ -1,17 +1,15 @@
 //! Process definition and general utilities surrounding them
 
-use super::{capabilities::Capabilities, Priority};
+use super::capabilities::Capabilities;
-
+use super::priority::Priority;
-/// Process Identification
+use crate::stdio::StdIO;
-#[derive(Clone, Copy, PartialEq, Debug)]
+use kernel::proccess::PID;
-#[repr(C)]
-pub struct PID(pub usize);
 
 /// A process
 #[derive(Clone, Debug)]
 pub struct Process {
     /// Internal PID
-    pub id: PID,
+    pub pid: PID,
 
     /// Process password
     pub password: u128,
@@ -20,8 +18,9 @@ pub struct Process {
     /// A process's priority
     pub priority: Priority,
 
-    ///
+    /// A process's current working directory
     pub working_dir: String,
+    pub stdio: StdIO,
 }
 
 impl Process {}

ableos/src/scheduler/tests.rs

@@ -1,49 +0,0 @@
-use super::*;
-
-use crate::scheduler::{
-    capabilities::{ControllerAccess, FileAccess, KeyboardAccess, MouseAccess, SoundCardAccess},
-    proc::PID,
-    Priority::*,
-    Scheduler,
-};
-
-// #[test]
-fn test_new_process() {
-    let mut scheduler = Scheduler::new();
-    scheduler.new_process(High);
-    assert_eq!(scheduler.list.len(), 1);
-}
-
-// #[test]
-fn test_next_process() {
-    let mut scheduler = Scheduler::new();
-    scheduler.new_process(High);
-    scheduler.next_process();
-    assert_eq!(scheduler.list.len(), 0);
-}
-
-// #[test]
-fn test_term_process() {
-    let mut scheduler = Scheduler::new();
-    scheduler.new_process(High);
-    scheduler.term_process(PID(1));
-    assert_eq!(scheduler.list.len(), 0);
-}
-
-// #[test]
-fn test_bump_exec() {
-    let mut scheduler = Scheduler::new();
-    scheduler.new_process(High);
-    scheduler.bump_exec();
-    assert_eq!(scheduler.process_exec_time, 1);
-}
-
-// #[test]
-fn test_capabilities() {
-    let caps = Capabilities::empty();
-    assert_eq!(caps.files, FileAccess::None);
-    assert_eq!(caps.mouse, MouseAccess::No);
-    assert_eq!(caps.keyboard, KeyboardAccess::No);
-    assert_eq!(caps.controllers, ControllerAccess::None);
-    assert_eq!(caps.sound_cards, SoundCardAccess::None);
-}

ableos/src/scratchpad.rs

@@ -2,13 +2,17 @@ use acpi::AcpiTables;
 
 use crate::rhai_shell::shell;
 
+use crate::stdio::StdIO;
 /// Experimental scratchpad for testing.
 pub fn scratchpad() {
-    // pci_fun();
+    let mut stdio = StdIO::new(crate::stdio::Device::Serial);
+    stdio.write();
 
     shell();
 }
 
+use core::fmt::Write;
+
 pub fn pci_fun() {}
 
 pub fn acpi() {

ableos/src/stdio.rs

@@ -0,0 +1,34 @@
+use core::fmt::Arguments;
+use core::fmt::Error;
+use core::fmt::Write;
+
+use crate::kprintln;
+
+#[derive(Debug, Clone, Copy)]
+pub enum Device {
+    VTerm,
+    Serial,
+}
+#[derive(Debug, Clone, Copy)]
+pub struct StdIO {
+    device: Device,
+}
+
+impl StdIO {
+    pub fn new(device: Device) -> StdIO {
+        StdIO { device }
+    }
+    pub fn write(&mut self) {
+        match self.device {
+            Device::VTerm => {
+                println!("Hello, world!");
+            }
+            Device::Serial => {
+                serial_println!("Hello, world!");
+            }
+        }
+    }
+    pub fn read(&mut self) {
+        todo!();
+    }
+}

kernel/Cargo.lock

@@ -1,22 +0,0 @@
-# This file is automatically @generated by Cargo.
-# It is not intended for manual editing.
-version = 3
-
-[[package]]
-name = "kernel"
-version = "0.1.2"
-dependencies = [
- "lazy_static",
- "versioning",
-]
-
-[[package]]
-name = "lazy_static"
-version = "1.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
-
-[[package]]
-name = "versioning"
-version = "0.1.2"
-source = "git+https://git.ablecorp.us/able/versioning#ef472283e6e7a2e395ee56434087b3a6fad53ff2"

kernel/src/lib.rs

@@ -8,6 +8,7 @@ pub mod device_interface;
 pub mod messaging;
 pub mod panic;
 pub mod proccess;
+pub mod syscalls;
 pub mod time;
 
 use core::sync::atomic::{AtomicU64, Ordering::Relaxed};

kernel/src/proccess.rs

@@ -2,3 +2,12 @@
 
 /// A process ID
 pub type PID = u64;
+
+#[repr(C)]
+/// Signals that can be sent to a process
+pub enum Signals {
+    /// Terminate the process
+    Terminate,
+    /// Shutdown the process and allow it to shutdown cleanly
+    Quit,
+}

kernel/src/syscalls.rs

@@ -0,0 +1,24 @@
+//!
+
+use crate::proccess::{Signals, PID};
+/// All possible system calls
+pub enum Syscall {
+    /// Create a new process and return its PID
+    CreateProcess,
+    /// Send a signal to a process
+    SendSignal(PID, Signals),
+
+    /// Get the current process ID
+    GetPID,
+    /// Get the current time
+    GetTime,
+    /// Set the time
+    SetTime,
+    /*
+    ListInodes,
+    CreateInode,
+    RemoveInode,
+    OpenInode,
+    CloseInode,
+    */
+}