97 lines
2.5 KiB
C
97 lines
2.5 KiB
C
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/***
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*abort.c - abort a program by raising SIGABRT
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*
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* Copyright (c) 1989-2001, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* defines abort() - print a message and raise SIGABRT.
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*
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*Revision History:
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* 06-30-89 PHG module created, based on asm version
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* 03-13-90 GJF Made calling type _CALLTYPE1, added #include
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* <cruntime.h> and fixed the copyright. Also, cleaned
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* up the formatting a bit.
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* 07-26-90 SBM Removed bogus leading underscore from _NMSG_WRITE
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* 10-04-90 GJF New-style function declarator.
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* 10-11-90 GJF Now does raise(SIGABRT). Also changed _NMSG_WRITE()
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* interface.
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* 04-10-91 PNT Added _MAC_ conditional
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* 08-26-92 GJF Include unistd.h for POSIX build.
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* 04-06-93 SKS Replace _CRTAPI* with __cdecl
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* 01-05-94 CFW Removed _MAC_ conditional.
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* 03-29-95 BWT Include stdio.h for POSIX to get fflush prototype.
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*
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*******************************************************************************/
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#include <cruntime.h>
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#ifdef _POSIX_
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#include <unistd.h>
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#include <stdio.h>
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#endif
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#include <stdlib.h>
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#include <internal.h>
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#include <rterr.h>
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#include <signal.h>
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/***
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*void abort() - abort the current program by raising SIGABRT
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*
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*Purpose:
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* print out an abort message and raise the SIGABRT signal. If the user
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* hasn't defined an abort handler routine, terminate the program
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* with exit status of 3 without cleaning up.
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*
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* Multi-thread version does not raise SIGABRT -- this isn't supported
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* under multi-thread.
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*
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*Entry:
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* None.
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*
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*Exit:
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* Does not return.
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*
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*Uses:
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*
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*Exceptions:
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*
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*******************************************************************************/
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void __cdecl abort (
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void
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)
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{
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_NMSG_WRITE(_RT_ABORT); /* write the abort message */
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#ifdef _POSIX_
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{
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sigset_t set;
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fflush(NULL);
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signal(SIGABRT, SIG_DFL);
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sigemptyset(&set);
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sigaddset(&set, SIGABRT);
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sigprocmask(SIG_UNBLOCK, &set, NULL);
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}
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#endif /* _POSIX_ */
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raise(SIGABRT); /* raise abort signal */
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/* We usually won't get here, but it's possible that
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SIGABRT was ignored. So hose the program anyway. */
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#ifdef _POSIX_
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/* SIGABRT was ignored or handled, and the handler returned
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normally. We need open streams to be flushed here. */
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exit(3);
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#else /* not _POSIX_ */
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_exit(3);
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#endif /* _POSIX */
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}
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