1 /* Provide a non-threads replacement for the POSIX raise function.
2 
3    Copyright (C) 2002-2003, 2005-2006, 2009-2012 Free Software Foundation, Inc.
4 
5    This program is free software: you can redistribute it and/or modify
6    it under the terms of the GNU General Public License as published by
7    the Free Software Foundation; either version 3 of the License, or
8    (at your option) any later version.
9 
10    This program is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13    GNU General Public License for more details.
14 
15    You should have received a copy of the GNU General Public License
16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
17 
18 /* written by Jim Meyering and Bruno Haible */
19 
20 #include <config.h>
21 
22 /* Specification.  */
23 #include <signal.h>
24 
25 #if HAVE_RAISE
26 /* Native Windows platform.  */
27 
28 # include <errno.h>
29 
30 # include "msvc-inval.h"
31 
32 # undef raise
33 
34 # if HAVE_MSVC_INVALID_PARAMETER_HANDLER
35 static int
raise_nothrow(int sig)36 raise_nothrow (int sig)
37 {
38   int result;
39 
40   TRY_MSVC_INVAL
41     {
42       result = raise (sig);
43     }
44   CATCH_MSVC_INVAL
45     {
46       result = -1;
47       errno = EINVAL;
48     }
49   DONE_MSVC_INVAL;
50 
51   return result;
52 }
53 # else
54 #  define raise_nothrow raise
55 # endif
56 
57 #else
58 /* An old Unix platform.  */
59 
60 # include <unistd.h>
61 
62 # define rpl_raise raise
63 
64 #endif
65 
66 int
rpl_raise(int sig)67 rpl_raise (int sig)
68 {
69 #if GNULIB_defined_signal_blocking && GNULIB_defined_SIGPIPE
70   if (sig == SIGPIPE)
71     return _gl_raise_SIGPIPE ();
72 #endif
73 
74 #if HAVE_RAISE
75   return raise_nothrow (sig);
76 #else
77   return kill (getpid (), sig);
78 #endif
79 }
80