| 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 | } |