ThreadLocalStorage.h

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/* ========================================
 
  Copyright (C) 2024-2025, Amlal El Mahrouss, licensed under the Apache 2.0 license.
 
======================================== */
 
#ifndef KERNELKIT_TLS_H
#define KERNELKIT_TLS_H
 
#include <NeKit/Config.h>
#include <NeKit/ErrorOr.h>

 
#define kCookieMag0Idx (0U)
#define kCookieMag1Idx (1U)
#define kCookieMag2Idx (2U)
 
#define kCookieMag0 'N'
#define kCookieMag1 'K'
#define kCookieMag2 'O'
 
#define kCookieMagLen (3U)
 
struct THREAD_INFORMATION_BLOCK;

struct PACKED THREAD_INFORMATION_BLOCK final {
  Kernel::Char    Cookie[kCookieMagLen]{0};  
  Kernel::VoidPtr UserData{nullptr};  
};

Kernel::Boolean tls_check_tib(THREAD_INFORMATION_BLOCK* the_tib);

template <typename T>
T* tls_new_ptr(void);

template <typename T>
Kernel::Boolean tls_delete_ptr(T* ptr);

template <typename T>
inline Kernel::Bool tls_delete_ptr(Kernel::ErrorOr<T> obj);

template <typename T>
inline Kernel::Bool tls_delete_ptr(Kernel::ErrorOr<T*> obj);
 
template <typename T, typename... Args>
T* tls_new_class(Args&&... args);

EXTERN_C Kernel::Void rt_install_tib(THREAD_INFORMATION_BLOCK* TIB, THREAD_INFORMATION_BLOCK* PIB);

EXTERN_C Kernel::Bool tls_check_syscall_impl(Kernel::VoidPtr TIB);
 
#include <KernelKit/ThreadLocalStorage.inl>
 
// last rev 7/7/24
 
#endif /* ifndef KERNELKIT_TLS_H */