[deliverable/binutils-gdb.git] / gdb / inflow.h

/* Low level interface to ptrace, for GDB when running under Unix.

   Copyright (C) 2003-2020 Free Software Foundation, Inc.

   This file is part of GDB.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#ifndef INFLOW_H
#define INFLOW_H

#include <unistd.h>
#include <signal.h>
#include "gdbsupport/job-control.h"

/* RAII class used to ignore SIGTTOU in a scope.  */

class scoped_ignore_sigttou
{
public:
  scoped_ignore_sigttou ()
  {
#ifdef SIGTTOU
    if (job_control)
      m_osigttou = signal (SIGTTOU, SIG_IGN);
#endif
  }

  ~scoped_ignore_sigttou ()
  {
#ifdef SIGTTOU
    if (job_control)
      signal (SIGTTOU, m_osigttou);
#endif
  }

  DISABLE_COPY_AND_ASSIGN (scoped_ignore_sigttou);

private:
#ifdef SIGTTOU
  sighandler_t m_osigttou = NULL;
#endif
};

#endif /* inflow.h */
Commit	Line	Data
	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
	29	class scoped_ignore_sigttou
	30	{
	31	public:
	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
	50	private:
	51	#ifdef SIGTTOU
	52	sighandler_t m_osigttou = NULL;
	53	#endif
	54	};
	55
	56	#endif /* inflow.h */