1 /* Provide a non-threads replacement for the POSIX raise function. 2 3 Copyright (C) 2002-2003, 2005-2006, 2009-2020 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 <https://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 # if HAVE_MSVC_INVALID_PARAMETER_HANDLER 31 # include "msvc-inval.h" 32 # endif 33 34 # if HAVE_MSVC_INVALID_PARAMETER_HANDLER 35 /* Forward declaration. */ 36 static int raise_nothrow (int sig); 37 # else 38 # define raise_nothrow raise 39 # endif 40 41 #else 42 /* An old Unix platform. */ 43 44 # include <unistd.h> 45 46 #endif 47 48 int raise(int sig)49raise (int sig) 50 #undef raise 51 { 52 #if GNULIB_defined_signal_blocking && GNULIB_defined_SIGPIPE 53 if (sig == SIGPIPE) 54 return _gl_raise_SIGPIPE (); 55 #endif 56 57 #if HAVE_RAISE 58 return raise_nothrow (sig); 59 #else 60 return kill (getpid (), sig); 61 #endif 62 } 63 64 #if HAVE_RAISE && HAVE_MSVC_INVALID_PARAMETER_HANDLER 65 static int raise_nothrow(int sig)66raise_nothrow (int sig) 67 { 68 int result; 69 70 TRY_MSVC_INVAL 71 { 72 result = raise (sig); 73 } 74 CATCH_MSVC_INVAL 75 { 76 result = -1; 77 errno = EINVAL; 78 } 79 DONE_MSVC_INVAL; 80 81 return result; 82 } 83 #endif 84