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Diffstat (limited to 'gl/lib/raise.c')
-rw-r--r-- | gl/lib/raise.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/gl/lib/raise.c b/gl/lib/raise.c new file mode 100644 index 0000000..385ddd3 --- /dev/null +++ b/gl/lib/raise.c @@ -0,0 +1,83 @@ +/* Provide a non-threads replacement for the POSIX raise function. + + Copyright (C) 2002-2003, 2005-2006, 2009-2022 Free Software Foundation, Inc. + + This file is free software: you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + This file 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 Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. */ + +/* written by Jim Meyering and Bruno Haible */ + +#include <config.h> + +/* Specification. */ +#include <signal.h> + +#if HAVE_RAISE +/* Native Windows platform. */ + +# include <errno.h> + +# if HAVE_MSVC_INVALID_PARAMETER_HANDLER +# include "msvc-inval.h" +# endif + +# if HAVE_MSVC_INVALID_PARAMETER_HANDLER +/* Forward declaration. */ +static int raise_nothrow (int sig); +# else +# define raise_nothrow raise +# endif + +#else +/* An old Unix platform. */ + +# include <unistd.h> + +#endif + +int +raise (int sig) +#undef raise +{ +#if GNULIB_defined_signal_blocking && GNULIB_defined_SIGPIPE + if (sig == SIGPIPE) + return _gl_raise_SIGPIPE (); +#endif + +#if HAVE_RAISE + return raise_nothrow (sig); +#else + return kill (getpid (), sig); +#endif +} + +#if HAVE_RAISE && HAVE_MSVC_INVALID_PARAMETER_HANDLER +static int +raise_nothrow (int sig) +{ + int result; + + TRY_MSVC_INVAL + { + result = raise (sig); + } + CATCH_MSVC_INVAL + { + result = -1; + errno = EINVAL; + } + DONE_MSVC_INVAL; + + return result; +} +#endif |