feat(kernel/sched): fixes and improvements on the scheduler's

implementation.

why?

- The previous one wasn't entierly correct on some parts.

Signed-off-by: Amlal El Mahrouss <amlal@nekernel.org>

2 files changed, 13 insertions, 7 deletions

diff --git a/dev/kernel/src/HardwareThreadScheduler.cc b/dev/kernel/src/HardwareThreadScheduler.cc
index 1df5ad7a..6cb83b3d 100644
--- a/dev/kernel/src/HardwareThreadScheduler.cc
+++ b/dev/kernel/src/HardwareThreadScheduler.cc
@@ -105,6 +105,8 @@ Void HardwareThread::Wake(const bool wakeup) noexcept {
 /// @retval false stack is invalid, previous code is running.
 /***********************************************************************************/
 Bool HardwareThread::Switch(HAL::StackFramePtr frame, const ThreadID& pid) {
+  if (this->IsBusy()) return NO;
+
   this->fStack = frame;
   this->fPID   = pid;
 
diff --git a/dev/kernel/src/UserProcessScheduler.cc b/dev/kernel/src/UserProcessScheduler.cc
index 24869d63..fe1a95ae 100644
--- a/dev/kernel/src/UserProcessScheduler.cc
+++ b/dev/kernel/src/UserProcessScheduler.cc
@@ -491,7 +491,7 @@ SizeT UserProcessScheduler::Run() noexcept {
         continue;
       }
 
-      kout << process.Name << " is being scheduled to run...\r";
+      kout << ((*process.Name) ? process.Name : "USER_PROCESS") << " will be scheduled...\r";
 
       this->CurrentProcess() = process;
 
@@ -499,17 +499,21 @@ SizeT UserProcessScheduler::Run() noexcept {
 
       if (process.PTime < process.RTime) {
         if (process.RTime < (Int32) AffinityKind::kVeryHigh)
-          process.PTime = (Int32) AffinityKind::kLowUsage;
+          process.RTime = (Int32) AffinityKind::kLowUsage;
         else if (process.RTime < (Int32) AffinityKind::kHigh)
-          process.PTime = (Int32) AffinityKind::kStandard;
+          process.RTime = (Int32) AffinityKind::kStandard;
         else if (process.RTime < (Int32) AffinityKind::kStandard)
-          process.PTime = (Int32) AffinityKind::kHigh;
+          process.RTime = (Int32) AffinityKind::kHigh;
+
+        process.PTime += process.RTime;
         process.RTime = 0UL;
-      } else {
-        ++process.RTime;
+      }
+
+      if (!UserProcessHelper::Switch(process.StackFrame, process.ProcessId)) {
+        continue;
       }
     } else {
-      kout << process.Name << " won't be scheduled to run...\r";
+      ++process.RTime;
       --process.PTime;
     }
   }