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98 lines
2.7 KiB
98 lines
2.7 KiB
use std::any::{Any, TypeId};
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use std::collections::HashMap;
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use std::sync::Arc;
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use std::thread::JoinHandle;
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use std::time::Duration;
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use crate::asm::data::literal::Addr;
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use crate::asm::instr::op::EvalRes;
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use crate::runtime::frame::{CallStack, StackFrame};
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use crate::runtime::program::Program;
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use crate::runtime::fault::Fault;
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#[derive(Clone, Copy, Eq, PartialEq, Debug, Ord, PartialOrd)]
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pub struct ThreadToken(pub u32);
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pub struct RunThread {
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pub(crate) info: ThreadInfo,
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pub(crate) state: RunState,
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}
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pub struct ThreadInfo {
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/// Thread ID
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pub id: ThreadToken,
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/// Program to run
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pub program: Arc<Program>,
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/// Program to run
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pub cycle_time: Duration,
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}
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pub struct RunState {
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/// Active stack frame
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pub frame: StackFrame,
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/// Call stack
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pub call_stack: CallStack,
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/// Extension data
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ext_data: HashMap<TypeId, Box<dyn Any + Send>>,
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}
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impl RunState {
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pub fn ext_mut<T: Send + Default + 'static>(&mut self) -> &mut T {
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if !self.ext_data.contains_key(&TypeId::of::<T>()) {
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self.ext_data.insert(TypeId::of::<T>(), Box::new(T::default()));
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}
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self.ext_data.get_mut(&TypeId::of::<T>()).unwrap()
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.downcast_mut().unwrap()
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}
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}
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impl RunThread {
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pub fn new(id: ThreadToken, program: Arc<Program>, pc: Addr, args: &[u64]) -> Self {
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Self {
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info: ThreadInfo {
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id,
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program,
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cycle_time: Duration::default(),
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},
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state: RunState {
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frame: StackFrame::new(pc, args),
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call_stack: vec![],
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ext_data: Default::default(),
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},
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}
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}
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pub fn set_speed(&mut self, cycle_time : Duration) {
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self.info.cycle_time = cycle_time;
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}
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pub fn start(self) -> JoinHandle<()> {
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std::thread::spawn(move || {
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self.run();
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})
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}
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fn run(mut self) {
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'run: loop {
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match self.eval_op() {
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Ok(EvalRes { cycles, advance }) => {
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std::thread::sleep(self.info.cycle_time * (cycles as u32));
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trace!("Step {}; Status = {}", advance, self.state.frame.status);
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self.state.frame.pc.advance(advance);
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if self.state.frame.status.invalid {
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warn!("Operation failed with INVALID status!");
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}
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}
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Err(Fault::Halt) => {
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info!("Program ended.");
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break 'run;
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}
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Err(e) => {
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error!("Fault: {:?}", e);
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break 'run;
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}
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}
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}
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}
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}
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