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-rw-r--r--contrib/tcsh/tc.sched.c288
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diff --git a/contrib/tcsh/tc.sched.c b/contrib/tcsh/tc.sched.c
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--- a/contrib/tcsh/tc.sched.c
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-/* $Header: /src/pub/tcsh/tc.sched.c,v 3.16 1998/10/25 15:10:40 christos Exp $ */
-/*
- * tc.sched.c: Scheduled command execution
- *
- * Karl Kleinpaste: Computer Consoles Inc. 1984
- */
-/*-
- * Copyright (c) 1980, 1991 The Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-#include "sh.h"
-
-RCSID("$Id: tc.sched.c,v 3.16 1998/10/25 15:10:40 christos Exp $")
-
-#include "ed.h"
-#include "tc.h"
-
-extern int just_signaled;
-
-struct sched_event {
- struct sched_event *t_next;
- time_t t_when;
- Char **t_lex;
-};
-static struct sched_event *sched_ptr = NULL;
-
-
-time_t
-sched_next()
-{
- if (sched_ptr)
- return (sched_ptr->t_when);
- return ((time_t) - 1);
-}
-
-/*ARGSUSED*/
-void
-dosched(v, c)
- register Char **v;
- struct command *c;
-{
- register struct sched_event *tp, *tp1, *tp2;
- time_t cur_time;
- int count, hours, minutes, dif_hour, dif_min;
- Char *cp;
- bool relative; /* time specified as +hh:mm */
- struct tm *ltp;
-
- USE(c);
-/* This is a major kludge because of a gcc linker */
-/* Problem. It may or may not be needed for you */
-#ifdef _MINIX
- char kludge[10];
- extern char *sprintf();
- sprintf(kludge, CGETS(24, 1, "kludge"));
-#endif /* _MINIX */
-
- v++;
- cp = *v++;
- if (cp == NULL) {
- Char *fmt;
- if ((fmt = varval(STRsched)) == STRNULL)
- fmt = str2short("%h\t%T\t%R\n");
- /* print list of scheduled events */
- for (count = 1, tp = sched_ptr; tp; count++, tp = tp->t_next) {
- Char buf[BUFSIZE], sbuf[BUFSIZE];
- blkexpand(tp->t_lex, buf);
- tprintf(FMT_SCHED, sbuf, fmt, sizeof(sbuf),
- short2str(buf), tp->t_when, (ptr_t) &count);
- for (cp = sbuf; *cp;)
- xputchar(*cp++);
- }
- return;
- }
-
- if (*cp == '-') {
- /* remove item from list */
- if (!sched_ptr)
- stderror(ERR_NOSCHED);
- if (*v)
- stderror(ERR_SCHEDUSAGE);
- count = atoi(short2str(++cp));
- if (count <= 0)
- stderror(ERR_SCHEDUSAGE);
- tp = sched_ptr;
- tp1 = 0;
- while (--count) {
- if (tp->t_next == 0)
- break;
- else {
- tp1 = tp;
- tp = tp->t_next;
- }
- }
- if (count)
- stderror(ERR_SCHEDEV);
- if (tp1 == 0)
- sched_ptr = tp->t_next;
- else
- tp1->t_next = tp->t_next;
- blkfree(tp->t_lex);
- xfree((ptr_t) tp);
- return;
- }
-
- /* else, add an item to the list */
- if (!*v)
- stderror(ERR_SCHEDCOM);
- relative = 0;
- if (!Isdigit(*cp)) { /* not abs. time */
- if (*cp != '+')
- stderror(ERR_SCHEDUSAGE);
- cp++, relative++;
- }
- minutes = 0;
- hours = atoi(short2str(cp));
- while (*cp && *cp != ':' && *cp != 'a' && *cp != 'p')
- cp++;
- if (*cp && *cp == ':')
- minutes = atoi(short2str(++cp));
- if ((hours < 0) || (minutes < 0) ||
- (hours > 23) || (minutes > 59))
- stderror(ERR_SCHEDTIME);
- while (*cp && *cp != 'p' && *cp != 'a')
- cp++;
- if (*cp && relative)
- stderror(ERR_SCHEDREL);
- if (*cp == 'p')
- hours += 12;
- (void) time(&cur_time);
- ltp = localtime(&cur_time);
- if (relative) {
- dif_hour = hours;
- dif_min = minutes;
- }
- else {
- if ((dif_hour = hours - ltp->tm_hour) < 0)
- dif_hour += 24;
- if ((dif_min = minutes - ltp->tm_min) < 0) {
- dif_min += 60;
- if ((--dif_hour) < 0)
- dif_hour = 23;
- }
- }
- tp = (struct sched_event *) xcalloc(1, sizeof *tp);
-#ifdef _SX
- tp->t_when = cur_time - ltp->tm_sec + dif_hour * 3600 + dif_min * 60;
-#else /* _SX */
- tp->t_when = cur_time - ltp->tm_sec + dif_hour * 3600L + dif_min * 60L;
-#endif /* _SX */
- /* use of tm_sec: get to beginning of minute. */
- if (!sched_ptr || tp->t_when < sched_ptr->t_when) {
- tp->t_next = sched_ptr;
- sched_ptr = tp;
- }
- else {
- tp1 = sched_ptr->t_next;
- tp2 = sched_ptr;
- while (tp1 && tp->t_when >= tp1->t_when) {
- tp2 = tp1;
- tp1 = tp1->t_next;
- }
- tp->t_next = tp1;
- tp2->t_next = tp;
- }
- tp->t_lex = saveblk(v);
-}
-
-/*
- * Execute scheduled events
- */
-/*ARGSUSED*/
-void
-sched_run(n)
- int n;
-{
- time_t cur_time;
- register struct sched_event *tp, *tp1;
- struct wordent cmd, *nextword, *lastword;
- struct command *t;
- Char **v, *cp;
- extern Char GettingInput;
-#ifdef BSDSIGS
- sigmask_t omask;
-
- omask = sigblock(sigmask(SIGINT)) & ~sigmask(SIGINT);
-#else
- (void) sighold(SIGINT);
-#endif
-
- USE(n);
-
- (void) time(&cur_time);
- tp = sched_ptr;
-
- /* bugfix by: Justin Bur at Universite de Montreal */
- /*
- * this test wouldn't be necessary if this routine were not called before
- * each prompt (in sh.c). But it is, to catch missed alarms. Someone
- * ought to fix it all up. -jbb
- */
- if (!(tp && tp->t_when < cur_time)) {
-#ifdef BSDSIGS
- (void) sigsetmask(omask);
-#else
- (void) sigrelse(SIGINT);
-#endif
- return;
- }
-
- if (GettingInput)
- (void) Cookedmode();
-
- while (tp && tp->t_when < cur_time) {
- if (seterr) {
- xfree((ptr_t) seterr);
- seterr = NULL;
- }
- cmd.word = STRNULL;
- lastword = &cmd;
- v = tp->t_lex;
- for (cp = *v; cp; cp = *++v) {
- nextword = (struct wordent *) xcalloc(1, sizeof cmd);
- nextword->word = Strsave(cp);
- lastword->next = nextword;
- nextword->prev = lastword;
- lastword = nextword;
- }
- lastword->next = &cmd;
- cmd.prev = lastword;
- tp1 = tp;
- sched_ptr = tp = tp1->t_next; /* looping termination cond: */
- blkfree(tp1->t_lex); /* straighten out in case of */
- xfree((ptr_t) tp1); /* command blow-up. */
-
- /* expand aliases like process() does. */
- alias(&cmd);
- /* build a syntax tree for the command. */
- t = syntax(cmd.next, &cmd, 0);
- if (seterr)
- stderror(ERR_OLD);
- /* execute the parse tree. */
- execute(t, -1, NULL, NULL);
- /* done. free the lex list and parse tree. */
- freelex(&cmd), freesyn(t);
- }
- if (GettingInput && !just_signaled) { /* PWP */
- (void) Rawmode();
- ClearLines(); /* do a real refresh since something may */
- ClearDisp(); /* have printed to the screen */
- Refresh();
- }
- just_signaled = 0;
-
-#ifdef BSDSIGS
- (void) sigsetmask(omask);
-#else
- (void) sigrelse(SIGINT);
-#endif
-}
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