/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8                               :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 Justine Alexandra Roberts Tunney                              │
│                                                                              │
│ Permission to use, copy, modify, and/or distribute this software for         │
│ any purpose with or without fee is hereby granted, provided that the         │
│ above copyright notice and this permission notice appear in all copies.      │
│                                                                              │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
│ PERFORMANCE OF THIS SOFTWARE.                                                │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/atomic.h"
#include "libc/calls/sig.internal.h"
#include "libc/limits.h"
#include "libc/nt/files.h"
#include "libc/nt/memory.h"
#include "libc/nt/runtime.h"
#include "libc/nt/thunk/msabi.h"
#include "libc/runtime/internal.h"
#ifdef __x86_64__

__msabi extern typeof(DeleteFile) *const __imp_DeleteFileW;
__msabi extern typeof(TerminateProcess) *const __imp_TerminateProcess;
__msabi extern typeof(UnmapViewOfFile) *const __imp_UnmapViewOfFile;

/**
 * Terminates the calling process and all of its threads.
 */
textwindows dontinstrument void TerminateThisProcess(uint32_t dwWaitStatus) {

  // delete sig file
  char16_t path[128];
  atomic_ulong *real;
  atomic_ulong fake = 0;
  real = __sig.process;
  __sig.process = &fake;
  __imp_UnmapViewOfFile(real);
  __imp_DeleteFileW(__sig_process_path(path, __pid, false));

  // "When a process terminates itself, TerminateProcess stops execution
  // of the calling thread and does not return." -Quoth MSDN
  __imp_TerminateProcess(-1, dwWaitStatus);
  __builtin_unreachable();
}

#endif /* __x86_64__ */
