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91028c63bc
code which initialized them. - Reading/changing the errno variable is no longer done directly, but involves accessor functions. - References to the HUGE_VAL quantity now involve an accessor function, too. - Changed the manner in which the __huge_val constant is initialized by the __math_init() function. git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@14824 87f5fb63-7c3d-0410-a384-fd976d0f7a62
110 lines
2.8 KiB
C
110 lines
2.8 KiB
C
/*
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* $Id: signal_raise.c,v 1.4 2005-02-03 16:56:15 obarthel Exp $
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*
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* :ts=4
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*
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* Portable ISO 'C' (1994) runtime library for the Amiga computer
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* Copyright (c) 2002-2005 by Olaf Barthel <olsen@sourcery.han.de>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Neither the name of Olaf Barthel nor the names of contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SIGNAL_HEADERS_H
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#include "signal_headers.h"
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#endif /* _SIGNAL_HEADERS_H */
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/****************************************************************************/
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int
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raise(int sig)
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{
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int result = -1;
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ENTER();
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SHOWVALUE(sig);
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assert( SIGABRT <= sig && sig <= SIGTERM );
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if(sig < SIGABRT || sig > SIGTERM)
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{
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SHOWMSG("unknown signal number");
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__set_errno(EINVAL);
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goto out;
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}
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if(FLAG_IS_CLEAR(__signals_blocked,(1 << sig)))
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{
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int table_entry = sig - SIGABRT;
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signal_handler_t handler;
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handler = __signal_handler_table[table_entry];
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/* Revert to the default handler to prevent recursion. */
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__signal_handler_table[table_entry] = SIG_DFL;
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if(handler == SIG_DFL)
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{
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char break_string[80];
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SHOWMSG("this is the default handler");
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/* Don't trigger a recursion. */
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__check_abort_enabled = FALSE;
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Fault(ERROR_BREAK,NULL,break_string,(LONG)sizeof(break_string));
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__print_termination_message((sig == SIGINT) ? break_string : NULL);
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SHOWMSG("bye, bye...");
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/* Note that we drop into the exit() function which
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* does not trigger the exit trap.
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*/
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_exit(EXIT_FAILURE);
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}
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else if (handler != SIG_IGN)
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{
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SHOWMSG("calling the handler");
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(*handler)(sig);
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SHOWMSG("done.");
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}
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}
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else
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{
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SHOWMSG("that signal is blocked");
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}
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result = 0;
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out:
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RETURN(result);
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return(result);
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}
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