CoCalc -- signal.c

GitHub Repository: att/ast
Path: blob/master/src/lib/libast/features/signal.c
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/***********************************************************************
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*                                                                      *
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*               This software is part of the ast package               *
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*          Copyright (c) 1985-2012 AT&T Intellectual Property          *
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*                      and is licensed under the                       *
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*                 Eclipse Public License, Version 1.0                  *
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*                    by AT&T Intellectual Property                     *
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*                                                                      *
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*                A copy of the License is available at                 *
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*          http://www.eclipse.org/org/documents/epl-v10.html           *
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*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
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*                                                                      *
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*              Information and Software Systems Research               *
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*                            AT&T Research                             *
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*                           Florham Park NJ                            *
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*                                                                      *
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*                 Glenn Fowler <[email protected]>                  *
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*                  David Korn <[email protected]>                   *
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*                   Phong Vo <[email protected]>                    *
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*                                                                      *
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***********************************************************************/
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#pragma prototyped
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/*
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 * Glenn Fowler
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 * AT&T Research
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 *
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 * generate signal features
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 */
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#include "FEATURE/standards"
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#define strsignal	______strsignal
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#include <signal.h>
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#undef	strsignal
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struct _m_
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{
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	char*		text;
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	char*		name;
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	int		value;
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};
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#define elementsof(x)	(sizeof(x)/sizeof(x[0]))
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static struct _m_ map[] =
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{
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#ifdef SIGABRT
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#define HAD_SIGABRT	1
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"Abort",			"ABRT",		SIGABRT,
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#endif
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#ifdef SIGAIO
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#define HAD_SIGAIO	1
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"Asynchronous I/O",		"AIO",		SIGAIO,
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#endif
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#ifdef SIGALRM
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#define HAD_SIGALRM	1
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"Alarm call",			"ALRM",		SIGALRM,
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#endif
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#ifdef SIGAPOLLO
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#define HAD_SIGAPOLLO	1
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"Apollo",			"APOLLO",	SIGAPOLLO,
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#endif
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#ifdef SIGBUS
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#define HAD_SIGBUS	1
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"Bus error",			"BUS",		SIGBUS,
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#endif
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#ifdef SIGCHLD
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#define HAD_SIGCHLD	1
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"Child status change",		"CHLD",		SIGCHLD,
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#endif
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#ifdef SIGCLD
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#define HAD_SIGCLD	1
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"Death of child", 		"CLD",		SIGCLD,
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#endif
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#ifdef SIGCONT
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#define HAD_SIGCONT	1
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"Stopped process continued",	"CONT",		SIGCONT,
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#endif
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#ifdef SIGDANGER
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#define HAD_SIGDANGER	1
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"System crash soon",		"DANGER",	SIGDANGER,
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#endif
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#ifdef SIGDEBUG
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#define HAD_SIGDEBUG	1
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"Debug trap",			"DEBUG",	SIGDEBUG,
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#endif
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#ifdef SIGDIL
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#define HAD_SIGDIL	1
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"DIL trap",			"DIL",		SIGDIL,
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#endif
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#ifdef SIGEMT
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#define HAD_SIGEMT	1
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"EMT trap",			"EMT",		SIGEMT,
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#endif
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#ifdef SIGERR
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#define HAD_SIGERR	1
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"ERR trap",			"ERR",		SIGERR,
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#endif
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#ifdef SIGEXIT
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#define HAD_SIGEXIT	1
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"Exit",				"EXIT",		SIGEXIT,
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#endif
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#ifdef SIGFPE
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#define HAD_SIGFPE	1
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"Floating exception",		"FPE",		SIGFPE,
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#endif
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#ifdef SIGFREEZE
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#define HAD_SIGFREEZE	1
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"CPR freeze",			"FREEZE",	SIGFREEZE,
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#endif
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#ifdef SIGHUP
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#define HAD_SIGHUP	1
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"Hangup",			"HUP",		SIGHUP,
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#endif
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#ifdef SIGILL
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#define HAD_SIGILL	1
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"Illegal instruction",		"ILL",		SIGILL,
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#endif
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#ifdef SIGINT
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#define HAD_SIGINT	1
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"Interrupt",			"INT",		SIGINT,
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#endif
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#ifdef SIGIO
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#define HAD_SIGIO	1
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"IO possible",			"IO",		SIGIO,
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#endif
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#ifdef SIGIOT
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#define HAD_SIGIOT	1
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"IOT trap",			"IOT",		SIGIOT,
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#endif
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#ifdef SIGKILL
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#define HAD_SIGKILL	1
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"Killed",			"KILL",		SIGKILL,
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#endif
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#ifdef SIGLAB
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#define HAD_SIGLAB	1
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"Security label changed",	"LAB",		SIGLAB,
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#endif
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#ifdef SIGLOST
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#define HAD_SIGLOST	1
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"Resources lost",		"LOST",		SIGLOST,
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#endif
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#ifdef SIGLWP
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#define HAD_SIGLWP	1
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"Thread event",			"LWP",		SIGLWP,
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#endif
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#ifdef SIGMIGRATE
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#define HAD_SIGMIGRATE	1
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"Migrate process",		"MIGRATE",	SIGMIGRATE,
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#endif
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#ifdef SIGPHONE
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#define HAD_SIGPHONE	1
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"Phone status change",		"PHONE",	SIGPHONE,
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#endif
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#ifdef SIGPIPE
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#define HAD_SIGPIPE	1
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"Broken pipe",			"PIPE",		SIGPIPE,
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#endif
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#ifdef SIGPOLL
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#define HAD_SIGPOLL	1
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"Poll event",			"POLL",		SIGPOLL,
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#endif
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#ifdef SIGPROF
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#define HAD_SIGPROF	1
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"Profile timer alarm",		"PROF",		SIGPROF,
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#endif
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#ifdef SIGPWR
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#define HAD_SIGPWR	1
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"Power fail",			"PWR",		SIGPWR,
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#endif
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#ifdef SIGQUIT
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#define HAD_SIGQUIT	1
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"Quit",				"QUIT",		SIGQUIT,
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#endif
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#ifdef SIGSEGV
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#define HAD_SIGSEGV	1
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"Memory fault",			"SEGV",		SIGSEGV,
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#endif
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#ifdef SIGSOUND
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#define HAD_SIGSOUND	1
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"Sound completed",		"SOUND",	SIGSOUND,
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#endif
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#ifdef SIGSSTOP
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#define HAD_SIGSSTOP	1
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"Sendable stop",		"SSTOP",	SIGSSTOP,
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#endif
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#ifdef SIGSTKFLT
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#define HAD_SIGSTKFLT	1
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"Stack fault",			"STKFLT",	SIGSTKFLT,
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#endif
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#ifdef gould
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#define HAD_gould	1
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"Stack overflow",		"STKOV",	28,
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#endif
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#ifdef SIGSTOP
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#define HAD_SIGSTOP	1
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"Stopped (signal)",		"STOP",		SIGSTOP,
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#endif
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#ifdef SIGSYS
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#define HAD_SIGSYS	1
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"Bad system call", 		"SYS",		SIGSYS,
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#endif
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#ifdef SIGTERM
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#define HAD_SIGTERM	1
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"Terminated",			"TERM",		SIGTERM,
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#endif
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#ifdef SIGTHAW
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#define HAD_SIGTHAW	1
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"CPR thaw",			"THAW",		SIGTHAW,
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#endif
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#ifdef SIGTINT
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#define HAD_SIGTINT	1
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"Interrupt (terminal)",		"TINT",		SIGTINT,
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#endif
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#ifdef SIGTRAP
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#define HAD_SIGTRAP	1
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"Trace trap",			"TRAP",		SIGTRAP,
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#endif
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#ifdef SIGTSTP
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#define HAD_SIGTSTP	1
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"Stopped",			"TSTP",		SIGTSTP,
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#endif
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#ifdef SIGTTIN
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#define HAD_SIGTTIN	1
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"Stopped (tty input)",		"TTIN",		SIGTTIN,
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#endif
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#ifdef SIGTTOU
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#define HAD_SIGTTOU	1
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"Stopped (tty output)",		"TTOU",		SIGTTOU,
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#endif
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#ifdef SIGURG
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#define HAD_SIGURG	1
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"Urgent IO",			"URG",		SIGURG,
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#endif
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#ifdef SIGUSR1
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#define HAD_SIGUSR1	1
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"User signal 1",		"USR1",		SIGUSR1,
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#endif
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#ifdef SIGUSR2
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#define HAD_SIGUSR2	1
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"User signal 2",		"USR2",		SIGUSR2,
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#endif
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#ifdef SIGVTALRM
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#define HAD_SIGVTALRM	1
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"Virtual timer alarm",		"VTALRM",	SIGVTALRM,
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#endif
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#ifdef SIGWAITING
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#define HAD_SIGWAITING	1
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"All threads blocked",		"WAITING",	SIGWAITING,
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#endif
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#ifdef SIGWINCH
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#define HAD_SIGWINCH	1
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"Window change", 		"WINCH",	SIGWINCH,
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#endif
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#ifdef SIGWIND
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#define HAD_SIGWIND	1
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"Window change",		"WIND",		SIGWIND,
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#endif
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#ifdef SIGWINDOW
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#define HAD_SIGWINDOW	1
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"Window change",		"WINDOW",	SIGWINDOW,
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#endif
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#ifdef SIGXCPU
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#define HAD_SIGXCPU	1
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"CPU time limit",		"XCPU",		SIGXCPU,
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#endif
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#ifdef SIGXFSZ
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#define HAD_SIGXFSZ	1
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"File size limit",		"XFSZ",		SIGXFSZ,
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#endif
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#include "FEATURE/siglist"
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0
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};
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#define RANGE_MIN	(1<<14)
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#define RANGE_MAX	(1<<13)
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#define RANGE_RT	(1<<12)
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#define RANGE_SIG	(~(RANGE_MIN|RANGE_MAX|RANGE_RT))
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static int		mapindex[1024];
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#if _lib_strsignal
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extern char*		strsignal(int);
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#endif
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int
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main()
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{
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	register int	i;
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	register int	j;
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	register int	k;
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	int		m;
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	int		n;
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#if _lib_strsignal
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	char*		s;
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#endif
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	k = 0;
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	for (i = 0; map[i].name; i++)
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		if ((j = map[i].value) > 0 && j < elementsof(mapindex) && !mapindex[j])
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		{
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			if (j > k)
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				k = j;
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			mapindex[j] = i;
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		}
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#ifdef SIGRTMIN
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	i = SIGRTMIN;
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#ifdef SIGRTMAX
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	j = SIGRTMAX;
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#else
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	j = i;
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#endif
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	if (j >= elementsof(mapindex))
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		j = elementsof(mapindex) - 1;
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	if (i <= j && i > 0 && i < elementsof(mapindex) && j > 0 && j < elementsof(mapindex))
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	{
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		if (j > k)
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			k = j;
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		mapindex[i] = RANGE_MIN | RANGE_RT;
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		n = 1;
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		while (++i < j)
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			mapindex[i] = RANGE_RT | n++;
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		mapindex[j] = RANGE_MAX | RANGE_RT | n;
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	}
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#endif
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	printf("#pragma prototyped\n");
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	printf("#define SIG_MAX	%d\n", k);
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	printf("\n");
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	printf("static const char* const	sig_name[] =\n");
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	printf("{\n");
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	for (i = 0; i <= k; i++)
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		if (!(j = mapindex[i]))
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			printf("	\"%d\",\n", i);
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		else if (j & RANGE_RT)
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		{
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			if (j & RANGE_MIN)
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				printf("	\"RTMIN\",\n");
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			else if (j & RANGE_MAX)
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				printf("	\"RTMAX\",\n");
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			else
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			{
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				m = j & RANGE_SIG;
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				if (m > n / 2)
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					printf("	\"RTMAX-%d\",\n", n - m);
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				else
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					printf("	\"RTMIN+%d\",\n", m);
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			}
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		}
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		else
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			printf("	\"%s\",\n", map[j].name);
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	printf("	0\n");
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	printf("};\n");
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	printf("\n");
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	printf("static const char* const	sig_text[] =\n");
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	printf("{\n");
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	for (i = 0; i <= k; i++)
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		if (!(j = mapindex[i]))
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			printf("	\"Signal %d\",\n", i);
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		else if (j & RANGE_RT)
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			printf("	\"Realtime priority %d%s\",\n", j & RANGE_SIG, (j & RANGE_MIN) ? " (lo)" : (j & RANGE_MAX) ? " (hi)" : "");
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		else if (map[j].text)
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			printf("	\"%s\",\n", map[j].text);
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#if _lib_strsignal
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		else if (s = strsignal(i))
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			printf("	\"%s\",\n", s);
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#endif
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		else
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			printf("	\"Signal %d\",\n", i);
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	printf("	0\n");
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	printf("};\n");
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	return 0;
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}
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