implemented safety features to prevent system damage

src/sal/generic_linux.rs

@@ -6,6 +6,7 @@ use std::sync::Mutex;
 use tracing::{debug};
 
 use crate::sal::traits::{SensorBus, ActuatorBus, EnvironmentGuard, HardwareWatchdog, PreflightAuditor, AuditStep, AuditError, SafetyStatus, EnvironmentCtx};
+use crate::sal::safety::TdpLimitMicroWatts;
 use crate::sal::heuristic::discovery::SystemFactSheet;
 use crate::sal::heuristic::schema::HardwareDb;
 
@@ -15,7 +16,7 @@ pub struct GenericLinuxSal {
     db: HardwareDb,
     suppressed_services: Mutex<Vec<String>>,
     last_valid_temp: Mutex<(f32, Instant)>,
-    current_pl1: Mutex<f32>,
+    current_pl1: Mutex<u64>,
     last_energy: Mutex<(u64, Instant)>,
 
     // --- Original State for Restoration ---
@@ -35,7 +36,7 @@ impl GenericLinuxSal {
             db,
             suppressed_services: Mutex::new(Vec::new()),
             last_valid_temp: Mutex::new((0.0, Instant::now())),
-            current_pl1: Mutex::new(15.0),
+            current_pl1: Mutex::new(15_000_000),
             last_energy: Mutex::new((initial_energy, Instant::now())),
             fact_sheet: facts,
             ctx,
@@ -151,16 +152,16 @@ impl ActuatorBus for GenericLinuxSal {
         } else { Ok(()) }
     }
 
-    fn set_sustained_power_limit(&self, watts: f32) -> Result<()> {
+    fn set_sustained_power_limit(&self, limit: TdpLimitMicroWatts) -> Result<()> {
         let rapl_path = self.fact_sheet.rapl_paths.first().ok_or_else(|| anyhow!("No PL1 path"))?;
-        fs::write(rapl_path.join("constraint_0_power_limit_uw"), ((watts * 1_000_000.0) as u64).to_string())?;
-        *self.current_pl1.lock().unwrap() = watts;
+        fs::write(rapl_path.join("constraint_0_power_limit_uw"), limit.as_u64().to_string())?;
+        *self.current_pl1.lock().unwrap() = limit.as_u64();
         Ok(())
     }
 
-    fn set_burst_power_limit(&self, watts: f32) -> Result<()> {
+    fn set_burst_power_limit(&self, limit: TdpLimitMicroWatts) -> Result<()> {
         let rapl_path = self.fact_sheet.rapl_paths.first().ok_or_else(|| anyhow!("No PL2 path"))?;
-        fs::write(rapl_path.join("constraint_1_power_limit_uw"), ((watts * 1_000_000.0) as u64).to_string())?;
+        fs::write(rapl_path.join("constraint_1_power_limit_uw"), limit.as_u64().to_string())?;
         Ok(())
     }
 }