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// Copyright 2024-2025, Amlal El Mahrouss (amlal@nekernel.org)
// Licensed under the Apache License, Version 2.0 (see LICENSE file)
// Official repository: https://github.com/ne-foss-org/nekernel
#ifndef KERNELKIT_TLS_H
#define KERNELKIT_TLS_H
#include <NeKit/Config.h>
#include <NeKit/ErrorOr.h>
///! @brief Thread Local Storage for NeKernel.
#define kCookieMag0Idx (0U)
#define kCookieMag1Idx (1U)
#define kCookieMag2Idx (2U)
#define kCookieMag0 'N'
#define kCookieMag1 'K'
#define kCookieMag2 'O'
#define kCookieMagLen (3U)
namespace Kernel {
struct THREAD_INFORMATION_BLOCK;
/// @brief Thread Information Block.
/// Located in GS on AMD64, other architectures have their own stuff. (64x0, 32x0, ARM64)
struct PACKED THREAD_INFORMATION_BLOCK final {
Kernel::Char Cookie[kCookieMagLen]{0}; //! Thread Magic Number.
Kernel::VoidPtr UserData{nullptr}; //! Thread Information Record (User defined canary structure)
Char Pad{};
};
///! @brief Cookie Sanity check.
Kernel::Boolean tls_check_tib(THREAD_INFORMATION_BLOCK* the_tib);
///! @brief new ptr syscall.
template <typename T>
T* tls_new_ptr(void);
///! @brief delete ptr syscall.
template <typename T>
Kernel::Boolean tls_delete_ptr(T* ptr);
//! @brief Delete process pointer.
//! @param obj The pointer to delete.
template <typename T>
inline Kernel::Bool tls_delete_ptr(Kernel::ErrorOr<T> obj);
//! @brief Delete process pointer.
//! @param obj The pointer to delete.
template <typename T>
inline Kernel::Bool tls_delete_ptr(Kernel::ErrorOr<T*> obj);
template <typename T, typename... Args>
T* tls_new_class(Args&&... args);
/// @brief TLS install TIB and PIB. (syscall)
EXTERN_C Kernel::Void rt_install_tib(THREAD_INFORMATION_BLOCK* TIB, THREAD_INFORMATION_BLOCK* PIB);
/// @brief TLS check (syscall)
EXTERN_C Kernel::Bool tls_check_syscall_impl(Kernel::VoidPtr TIB);
} // namespace Kernel
#include "ThreadLocalStorage.inl"
// last rev 1/24/26
#endif /* ifndef KERNELKIT_TLS_H */
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