Add thread structure

src/kernel/mod.rs

@@ -1,2 +1,3 @@
+mod process;
 mod thread;
 mod scheduler;

src/kernel/process.rs

@@ -0,0 +1,4 @@
+
+pub struct Process {
+
+}

src/kernel/thread.rs

@@ -0,0 +1,97 @@
+use super::process::Process;
+use crate::{simulator::machine::{NUM_INT_REGS, NUM_FP_REGS}, utility::system::ObjectType};
+
+
+struct SimulatorContext {
+    // todo
+}
+
+struct ThreadContext {
+    pub int_registers: [i64; NUM_INT_REGS],
+    pub float_registers: [i64; NUM_FP_REGS],
+    pc: i64,
+}
+
+pub struct Thread {
+    name: String,
+    process: Option<Process>,
+    simulation_context: SimulatorContext,
+    thread_context: ThreadContext,
+    stack_pointer: i32,
+    object_type: ObjectType
+}
+
+impl Thread {
+
+    pub fn new(name: String) -> Self {
+        Self {
+            name,
+            process: None,
+            simulation_context: SimulatorContext {  },
+            thread_context: ThreadContext { 
+                int_registers: [0; NUM_INT_REGS], 
+                float_registers: [0; NUM_FP_REGS], 
+                pc: 0 
+            },
+            stack_pointer: 0,
+            object_type: ObjectType::THREAD_TYPE
+        }
+    }
+
+    /// Start a thread, attaching it to a process
+    pub fn start(&self, owner: &Process, func: i64, arg: i64) -> i32 {
+        todo!();
+    }
+
+    /// Wait for another thread to finish its execution
+    pub fn join(&self, id_thread: &Thread) {
+        todo!();
+    }
+
+    /// Relinquish the CPU if any other thread is runnable.
+    /// 
+    /// Cannot use yield as a function name -> reserved name in rust
+    pub fn t_yield(&self) {
+        todo!();
+    }
+
+    /// Put the thread to sleep and relinquish the processor
+    pub fn sleep(&self) {
+        todo!();
+    }
+
+    /// Finish the execution of the thread and prepare its deallocation
+    pub fn finish(&self) {
+        todo!();
+    }
+    
+    /// Check if a thread has overflowed its stack
+    pub fn check_overflow(&self) {
+        todo!();
+    }
+
+    pub fn init_simulator_context(&self, initial_pc_reg: i64, initial_sp: i64, arg: i64) {
+        todo!();
+    }
+
+    pub fn save_processor_state(&self) {
+        todo!();
+    }
+
+    pub fn restore_processor_state(&self) {
+        todo!();
+    }
+
+    pub fn save_simulator_state(&self) {
+        todo!();
+    }
+
+    pub fn restore_simulator_state(&self) {
+        todo!();
+    }
+
+    pub fn get_name(&self) -> String {
+        self.name.clone()
+    }
+
+}

src/simulator/machine.rs

@@ -6,6 +6,9 @@ use super::{decode::{Instruction, decode}};
 use super::global::*;
 use std::fs::File;
 
+pub const NUM_INT_REGS: usize = 32;
+pub const NUM_FP_REGS: usize = 32;
+
 /// doit disparaitre
 const MEM_SIZE : usize = 0x500000;
 

src/utility/mod.rs

@@ -1 +1,2 @@
 pub mod list;
+pub mod system;

src/utility/system.rs

@@ -0,0 +1,9 @@
+
+pub enum ObjectType {
+    SEMAPHORE_TYPE,
+    LOCK_TYPE,
+    CONDITION_TYPE,
+    FILE_TYPE,
+    THREAD_TYPE,
+    INVALID_TYPE
+}