Signals.h

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/* ========================================
 
  Copyright (C) 2024-2025, Amlal El Mahrouss, licensed under the Apache 2.0 license.
 
======================================== */
 
#pragma once
 
#include <NeKit/Config.h>
#include <NeKit/KernelPanic.h>
 
#define SIGBAD 0  /* bad signal*/
#define SIGKILL 1 /* kill */
#define SIGPAUS 2 /* pause */
#define SIGEXEC 3 /* execute */
#define SIGTRAP 4 /* trap */
#define SIGABRT 5 /* abort */
#define SIGCONT 6 /* continue */
#define SIGSEG 7  /* process fault */
#define SIGBREK 8
#define SIGATCH 9
#define SIGDTCH 10

 
namespace Kernel {
typedef SizeT rt_signal_kind;

inline constexpr auto kUserSignalSeed = 0x0895034fUL;

inline constexpr auto kKernelSignalSeed = 0x0895034f9fUL;

template <rt_signal_kind Sig, SizeT Seed = kUserSignalSeed>
inline rt_signal_kind sig_generate_unique() {
  STATIC_PASS(Sig > SIGBAD, "Signal is zero (invalid)");
  return Sig ^ Seed;
}

template <SizeT Seed>
inline BOOL sig_matches_seed(rt_signal_kind sig) {
  return (sig & 0xFF000000) == (Seed & 0xFF000000);
}

inline BOOL sig_validate_unique(rt_signal_kind sig) {
  return sig > SIGBAD && sig > SIGDTCH;
}
}  // namespace Kernel