From c4870d08fa4bfb2613bf22a0b7cf306b388f58a4 Mon Sep 17 00:00:00 2001 From: Amlal El Mahrouss Date: Sat, 29 Mar 2025 05:03:14 +0100 Subject: ddk: refactor: reorganize kit into a standard kernel kit. sched: refactor: refactor scheduler file names, for future additions. xcoff: refactor: document and improve XCOFF for NeFS (regarding Ne's FW) codemgr: refactor: make a difference between kernel and user processes. refactor: document project overall. Signed-off-by: Amlal El Mahrouss --- dev/kernel/KernelKit/ProcessScheduler.inl | 62 +++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 dev/kernel/KernelKit/ProcessScheduler.inl (limited to 'dev/kernel/KernelKit/ProcessScheduler.inl') diff --git a/dev/kernel/KernelKit/ProcessScheduler.inl b/dev/kernel/KernelKit/ProcessScheduler.inl new file mode 100644 index 00000000..b624e623 --- /dev/null +++ b/dev/kernel/KernelKit/ProcessScheduler.inl @@ -0,0 +1,62 @@ +/* ------------------------------------------- + + Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved. + + FILE: ProcessScheduler.inl + PURPOSE: Low level/Ring-3 Process scheduler. + +------------------------------------------- */ + +namespace Kernel +{ + /***********************************************************************************/ + /** @brief Free pointer from usage. */ + /***********************************************************************************/ + + template + Boolean UserProcess::Delete(ErrorOr ptr, const SizeT& sz) + { + if (!ptr) + return No; + + if (!this->ProcessMemoryHeap) + { + kout << "Process's heap is empty.\r"; + return No; + } + + ProcessMemoryHeapList* entry = this->ProcessMemoryHeap; + + while (entry != nullptr) + { + if (entry->MemoryEntry == ptr.Leak().Leak()) + { + this->UsedMemory -= entry->MemoryEntrySize; + +#ifdef __NE_AMD64__ + auto pd = hal_read_cr3(); + + hal_write_cr3(this->VMRegister); + + auto ret = mm_delete_heap(entry->MemoryEntry); + + hal_write_cr3(pd); + + return ret == kErrorSuccess; +#else + Bool ret = mm_delete_heap(ptr.Leak().Leak()); + + return ret == kErrorSuccess; +#endif + } + + entry = entry->MemoryNext; + } + + kout << "Invalid Pointer: Trying to free a pointer which doesn't exist.\r"; + + this->Crash(); + + return No; + } +} // namespace Kernel -- cgit v1.2.3