1/* Low level interface to ptrace, for GDB when running under Unix. 2 3 Copyright (C) 2003-2020 Free Software Foundation, Inc. 4 5 This file is part of GDB. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 19 20#ifndef INFLOW_H 21#define INFLOW_H 22 23#include <unistd.h> 24#include <signal.h> 25#include "gdbsupport/job-control.h" 26 27/* RAII class used to ignore SIGTTOU in a scope. */ 28 29class scoped_ignore_sigttou 30{ 31public: 32 scoped_ignore_sigttou () 33 { 34#ifdef SIGTTOU 35 if (job_control) 36 m_osigttou = signal (SIGTTOU, SIG_IGN); 37#endif 38 } 39 40 ~scoped_ignore_sigttou () 41 { 42#ifdef SIGTTOU 43 if (job_control) 44 signal (SIGTTOU, m_osigttou); 45#endif 46 } 47 48 DISABLE_COPY_AND_ASSIGN (scoped_ignore_sigttou); 49 50private: 51#ifdef SIGTTOU 52 sighandler_t m_osigttou = NULL; 53#endif 54}; 55 56#endif /* inflow.h */ 57