diff options
| author | Amlal El Mahrouss <amlal.elmahrouss@icloud.com> | 2025-03-23 19:13:48 +0100 |
|---|---|---|
| committer | Amlal El Mahrouss <amlal.elmahrouss@icloud.com> | 2025-03-23 19:15:17 +0100 |
| commit | a13e1c0911c0627184bc38f18c7fdda64447b3ad (patch) | |
| tree | 073a62c09bf216e85a3f310376640fa1805147f9 /dev/kernel/KernelKit/MemoryMgr.h | |
| parent | 149fa096eb306d03686b3b67e813cf1a78e08cd0 (diff) | |
meta(kernel): Reworked repository's filesystem structure.
Removing useless parts of the project too.
Signed-off-by: Amlal El Mahrouss <amlal.elmahrouss@icloud.com>
Diffstat (limited to 'dev/kernel/KernelKit/MemoryMgr.h')
| -rw-r--r-- | dev/kernel/KernelKit/MemoryMgr.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/dev/kernel/KernelKit/MemoryMgr.h b/dev/kernel/KernelKit/MemoryMgr.h new file mode 100644 index 00000000..93718493 --- /dev/null +++ b/dev/kernel/KernelKit/MemoryMgr.h @@ -0,0 +1,87 @@ +/* ------------------------------------------- + + Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved. + +------------------------------------------- */ + +#ifndef INC_KERNEL_HEAP_H +#define INC_KERNEL_HEAP_H + +/// @date 30/01/24 +/// @file: MemoryMgr.h +/// @brief: heap allocation support. + +#include <NewKit/KernelPanic.h> +#include <KernelKit/LPC.h> +#include <HintsKit/CompilerHint.h> + +namespace NeOS +{ + /// @brief Declare pointer as free. + /// @param heap_ptr the pointer. + /// @return a status code regarding the deallocation. + Int32 mm_delete_heap(VoidPtr heap_ptr); + + /// @brief Declare a new size for heap_ptr. + /// @param heap_ptr the pointer. + /// @return unsupported always returns nullptr. + VoidPtr mm_realloc_heap(VoidPtr heap_ptr, SizeT new_sz); + + /// @brief Check if pointer is a valid Kernel pointer. + /// @param heap_ptr the pointer + /// @return if it exists it returns true. + Boolean mm_is_valid_heap(VoidPtr heap_ptr); + + /// @brief Allocate chunk of memory. + /// @param sz Size of pointer + /// @param wr Read Write bit. + /// @param user User enable bit. + /// @return The newly allocated pointer, or nullptr. + VoidPtr mm_new_heap(const SizeT sz, const Bool wr, const Bool user); + + /// @brief Protect the heap with a CRC value. + /// @param heap_ptr pointer. + /// @return if it valid: point has crc now., otherwise fail. + Boolean mm_protect_heap(VoidPtr heap_ptr); + + /// @brief Makes a Kernel page. + /// @param heap_ptr the page pointer. + /// @return status code + Int32 mm_make_page(VoidPtr heap_ptr); + + /// @brief Overwrites and set the flags of a heap header. + /// @param heap_ptr the pointer to update. + /// @param flags the flags to set. + Int32 mm_make_flags(VoidPtr heap_ptr, UInt64 flags); + + /// @brief Gets the flags of a heap header. + /// @param heap_ptr the pointer to get. + UInt64 mm_get_flags(VoidPtr heap_ptr); + + /// @brief Allocate C++ class. + /// @param cls The class to allocate. + /// @param args The args to pass. + template <typename T, typename... Args> + inline BOOL mm_new_class(_Input _Output T** cls, _Input Args&&... args) + { + if (*cls) + { + err_global_get() = NeOS::kErrorInvalidData; + return NO; + } + + *cls = new T(move(args)...); + return *cls; + } + + /// @brief Delete and nullify C++ class. + /// @param cls The class to delete. + template <typename T> + inline Void mm_delete_class(_Input _Output T** cls) + { + delete *cls; + *cls = nullptr; + } +} // namespace NeOS + +#endif // !INC_KERNEL_HEAP_H |
