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use lazy_static::*;
use std::collections::*;
use std::sync::*;
use std::thread::*;
lazy_static! {
static ref CONTEXT: Mutex<HashMap<ThreadId, StateContext>> = Mutex::new(HashMap::new());
}
#[derive(Debug, Clone, PartialEq)]
pub enum ExitCondition {
Goto,
Error,
Break,
Hold,
}
#[derive(Debug, Copy, Clone)]
pub enum ExecutionState {
Normal,
Loop,
}
#[derive(Debug)]
pub struct StateContext {
state: Vec<ExecutionState>,
rip: usize,
}
impl Default for StateContext {
fn default() -> Self {
Self {
state: Vec::default(),
rip: 0,
}
}
}
impl StateContext {
pub fn clear_rip() {
let thread_id = current().id();
let mut hashmap = CONTEXT.lock().unwrap();
if let Some(state_context) = hashmap.get_mut(&thread_id) {
state_context.rip = 0;
}
}
pub fn inc_rip() {
let thread_id = current().id();
let mut hashmap = CONTEXT.lock().unwrap();
hashmap
.entry(thread_id)
.or_insert_with(|| StateContext::default());
if let Some(state_context) = hashmap.get_mut(&thread_id) {
state_context.rip += 1;
}
}
pub fn get_rip() -> usize {
let thread_id = current().id();
let mut hashmap = CONTEXT.lock().unwrap();
hashmap
.entry(thread_id)
.or_insert_with(|| StateContext::default());
if let Some(state_context) = hashmap.get(&thread_id) {
state_context.rip
} else {
unreachable!();
}
}
}
impl StateContext {
pub fn clear_state() {
let thread_id = current().id();
let mut hashmap = CONTEXT.lock().unwrap();
hashmap
.entry(thread_id)
.or_insert_with(|| StateContext::default());
if let Some(state_context) = hashmap.get_mut(&thread_id) {
state_context.state.clear();
}
}
pub fn set_state(state: ExecutionState) {
let thread_id = current().id();
let mut hashmap = CONTEXT.lock().unwrap();
hashmap
.entry(thread_id)
.or_insert_with(|| StateContext::default());
if let Some(state_context) = hashmap.get_mut(&thread_id) {
match state {
ExecutionState::Loop => {
state_context.state.push(state);
}
ExecutionState::Normal => {
state_context.state.pop();
}
}
}
}
pub fn get_state() -> ExecutionState {
let thread_id = current().id();
let mut hashmap = CONTEXT.lock().unwrap();
hashmap
.entry(thread_id)
.or_insert_with(|| StateContext::default());
if let Some(state_context) = hashmap.get(&thread_id) {
if state_context.state.is_empty() {
return ExecutionState::Normal;
}
}
ExecutionState::Loop
}
}