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

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

   Copyright (C) 2006-2013 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) 2006-2013 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	#include "defs.h"
	21	#include "event-loop.h"
	22
	23	#include "gdb_string.h"
	24
	25	#include "gdb_select.h"
	26
	27	/* The strerror() function can return NULL for errno values that are
	28	out of range. Provide a "safe" version that always returns a
	29	printable string. */
	30
	31	char *
	32	safe_strerror (int errnum)
	33	{
	34	char *msg;
	35
	36	msg = strerror (errnum);
	37	if (msg == NULL)
	38	{
	39	static char buf[32];
	40
	41	xsnprintf (buf, sizeof buf, "(undocumented errno %d)", errnum);
	42	msg = buf;
	43	}
	44	return (msg);
	45	}
	46
	47	/* Wrapper for select. Nothing special needed on POSIX platforms. */
	48
	49	int
	50	gdb_select (int n, fd_set readfds, fd_set writefds, fd_set *exceptfds,
	51	struct timeval *timeout)
	52	{
	53	return select (n, readfds, writefds, exceptfds, timeout);
	54	}
	55
	56	/* Wrapper for the body of signal handlers. Nothing special needed on
	57	POSIX platforms. */
	58
	59	void
	60	gdb_call_async_signal_handler (struct async_signal_handler *handler,
	61	int immediate_p)
	62	{
	63	if (immediate_p)
	64	call_async_signal_handler (handler);
	65	else
	66	mark_async_signal_handler (handler);
	67	}