File indexing completed on 2024-04-14 04:47:36

 /*
     SPDX-FileCopyrightText: 2019 Nicolas Carion <french.ebook.lover@gmail.com>
     SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
 */
 #pragma once
 
 #if !defined(_WIN32) && (defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__)))
 #include <cstdio>
 #include <cstdlib>
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <type_traits>
 #include <unistd.h>
 #include <utility>
 // copied from cppreference as possible implementation
 namespace detail {
 template <class F, class... Args> inline auto INVOKE(F &&f, Args &&... args) -> decltype(std::forward<F>(f)(std::forward<Args>(args)...))
 {
     return std::forward<F>(f)(std::forward<Args>(args)...);
 }
 
 template <class Base, class T, class Derived> inline auto INVOKE(T Base::*pmd, Derived &&ref) -> decltype(std::forward<Derived>(ref).*pmd)
 {
     return std::forward<Derived>(ref).*pmd;
 }
 
 template <class PMD, class Pointer> inline auto INVOKE(PMD pmd, Pointer &&ptr) -> decltype((*std::forward<Pointer>(ptr)).*pmd)
 {
     return (*std::forward<Pointer>(ptr)).*pmd;
 }
 
 template <class Base, class T, class Derived, class... Args>
 inline auto INVOKE(T Base::*pmf, Derived &&ref, Args &&... args) -> decltype((std::forward<Derived>(ref).*pmf)(std::forward<Args>(args)...))
 {
     return (std::forward<Derived>(ref).*pmf)(std::forward<Args>(args)...);
 }
 
 template <class PMF, class Pointer, class... Args>
 inline auto INVOKE(PMF pmf, Pointer &&ptr, Args &&... args) -> decltype(((*std::forward<Pointer>(ptr)).*pmf)(std::forward<Args>(args)...))
 {
     return ((*std::forward<Pointer>(ptr)).*pmf)(std::forward<Args>(args)...);
 }
 } // namespace detail
 
 namespace util {
 template <class F, class... ArgTypes> decltype(auto) invoke(F &&f, ArgTypes &&... args)
 {
     return detail::INVOKE(std::forward<F>(f), std::forward<ArgTypes>(args)...);
 }
 } // namespace util
 
 void Disable_Console_Output();
 
 template <class F, class... Args> bool ABORTS(F &&f, Args &&... args)
 {
     // pipe
     int fd[2];
     pipe(fd);
 
     // spawn a new process
     auto child_pid = fork();
     bool aborted = false;
 
     // if the fork succeeded
     if (child_pid >= 0) {
 
         // if we are in the child process
         if (child_pid == 0) {
             close(fd[0]);
 
             // call the function that we expect to abort
             Disable_Console_Output();
             util::invoke(std::forward<F>(f), std::forward<Args>(args)...);
 
             char succ[] = "1";
             write(fd[1], succ, 2);
 
             // if the function didn't abort, we'll exit cleanly
             std::exit(EXIT_SUCCESS);
         } else {
             close(fd[1]);
             char buff[128];
             int n = read(fd[0], buff, 127);
             aborted = n == 0;
         }
     }
 
     return aborted;
 }
 #else
 template <class F, class... Args> bool ABORTS(F &&, Args &&...)
 {
     return true;
 }
 #endif