[deliverable/binutils-gdb.git] / gdb / posix-hdep.c

/* Host support routines for MinGW, for GDB, the GNU debugger.

   Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011
   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/>.  */

#include "defs.h"
#include "event-loop.h"

#include "gdb_string.h"

#include "gdb_select.h"

/* The strerror() function can return NULL for errno values that are
   out of range.  Provide a "safe" version that always returns a
   printable string.  */

char *
safe_strerror (int errnum)
{
  char *msg;

  msg = strerror (errnum);
  if (msg == NULL)
    {
      static char buf[32];

      xsnprintf (buf, sizeof buf, "(undocumented errno %d)", errnum);
      msg = buf;
    }
  return (msg);
}

/* Wrapper for select.  Nothing special needed on POSIX platforms.  */

int
gdb_select (int n, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
	    struct timeval *timeout)
{
  return select (n, readfds, writefds, exceptfds, timeout);
}

/* Wrapper for the body of signal handlers.  Nothing special needed on
   POSIX platforms.  */

void
gdb_call_async_signal_handler (struct async_signal_handler *handler,
			       int immediate_p)
{
  if (immediate_p)
    call_async_signal_handler (handler);
  else
    mark_async_signal_handler (handler);
}
Commit	Line	Data
	1	/* Host support routines for MinGW, for GDB, the GNU debugger.
	2
	3	Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011
	4	Free Software Foundation, Inc.
	5
	6	This file is part of GDB.
	7
	8	This program is free software; you can redistribute it and/or modify
	9	it under the terms of the GNU General Public License as published by
	10	the Free Software Foundation; either version 3 of the License, or
	11	(at your option) any later version.
	12
	13	This program is distributed in the hope that it will be useful,
	14	but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	GNU General Public License for more details.
	17
	18	You should have received a copy of the GNU General Public License
	19	along with this program. If not, see <http://www.gnu.org/licenses/>. */
	20
	21	#include "defs.h"
	22	#include "event-loop.h"
	23
	24	#include "gdb_string.h"
	25
	26	#include "gdb_select.h"
	27
	28	/* The strerror() function can return NULL for errno values that are
	29	out of range. Provide a "safe" version that always returns a
	30	printable string. */
	31
	32	char *
	33	safe_strerror (int errnum)
	34	{
	35	char *msg;
	36
	37	msg = strerror (errnum);
	38	if (msg == NULL)
	39	{
	40	static char buf[32];
	41
	42	xsnprintf (buf, sizeof buf, "(undocumented errno %d)", errnum);
	43	msg = buf;
	44	}
	45	return (msg);
	46	}
	47
	48	/* Wrapper for select. Nothing special needed on POSIX platforms. */
	49
	50	int
	51	gdb_select (int n, fd_set readfds, fd_set writefds, fd_set *exceptfds,
	52	struct timeval *timeout)
	53	{
	54	return select (n, readfds, writefds, exceptfds, timeout);
	55	}
	56
	57	/* Wrapper for the body of signal handlers. Nothing special needed on
	58	POSIX platforms. */
	59
	60	void
	61	gdb_call_async_signal_handler (struct async_signal_handler *handler,
	62	int immediate_p)
	63	{
	64	if (immediate_p)
	65	call_async_signal_handler (handler);
	66	else
	67	mark_async_signal_handler (handler);
	68	}