From 81027667166d9624ee12f45f011426678d1bbbf4 Mon Sep 17 00:00:00 2001
From: Amlal El Mahrouss <amlal@nekernel.org>
Date: Thu, 29 May 2025 17:19:57 +0200
Subject: feat: Improve libSystem's architecture and implementation.

fix: Fix NeKit's Ref, and ErrorOr classes.

fix: Fix userland tools.

next:

 - Finish the latest tickets and then release nekernel 0.0.3

Signed-off-by: Amlal El Mahrouss <amlal@nekernel.org>
---
 dev/kernel/src/HardwareThreadScheduler.cc | 4 ++--
 dev/kernel/src/KString.cc                 | 2 +-
 dev/kernel/src/Pmm.cc                     | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

(limited to 'dev/kernel/src')

diff --git a/dev/kernel/src/HardwareThreadScheduler.cc b/dev/kernel/src/HardwareThreadScheduler.cc
index 78bad9d6..e3255326 100644
--- a/dev/kernel/src/HardwareThreadScheduler.cc
+++ b/dev/kernel/src/HardwareThreadScheduler.cc
@@ -20,7 +20,7 @@ namespace Kernel {
 /// @note Those symbols are needed in order to switch and validate the stack.
 /***********************************************************************************/
 
-EXTERN_C Bool hal_check_stack(HAL::StackFramePtr frame);
+EXTERN_C Bool hal_check_task(HAL::StackFramePtr frame);
 EXTERN_C Bool mp_register_task(HAL::StackFramePtr frame, ProcessID pid);
 
 STATIC HardwareThreadScheduler kHardwareThreadScheduler;
@@ -96,7 +96,7 @@ Bool HardwareThread::Switch(HAL::StackFramePtr frame) {
     return NO;
   }
 
-  if (!hal_check_stack(frame)) {
+  if (!hal_check_task(frame)) {
     return NO;
   }
 
diff --git a/dev/kernel/src/KString.cc b/dev/kernel/src/KString.cc
index 9f332cdf..f5732280 100644
--- a/dev/kernel/src/KString.cc
+++ b/dev/kernel/src/KString.cc
@@ -64,7 +64,7 @@ bool KString::operator!=(const Char* rhs) const {
 }
 
 ErrorOr<KString> KStringBuilder::Construct(const Char* data) {
-  if (!data || *data == 0) return {};
+  if (!data || *data == 0) return ErrorOr<KString>(new KString(0));
 
   KString* view = new KString(rt_string_len(data));
   (*view) += data;
diff --git a/dev/kernel/src/Pmm.cc b/dev/kernel/src/Pmm.cc
index b9fba20e..7f5050f9 100644
--- a/dev/kernel/src/Pmm.cc
+++ b/dev/kernel/src/Pmm.cc
@@ -35,7 +35,7 @@ Ref<PTEWrapper> Pmm::RequestPage(Boolean user, Boolean readWrite) {
 
   if (pt.fPresent) {
     kout << "[PMM]: Allocation failed.\r";
-    return {};
+    return {pt};
   }
 
   return Ref<PTEWrapper>(pt);
-- 
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