Annotation of src/usr.bin/make/job.c, Revision 1.21
1.21 ! espie 1: /* $OpenBSD: job.c,v 1.20 1999/12/18 21:58:07 espie Exp $ */
1.6 millert 2: /* $NetBSD: job.c,v 1.16 1996/11/06 17:59:08 christos Exp $ */
1.1 deraadt 3:
4: /*
5: * Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
6: * Copyright (c) 1988, 1989 by Adam de Boor
7: * Copyright (c) 1989 by Berkeley Softworks
8: * All rights reserved.
9: *
10: * This code is derived from software contributed to Berkeley by
11: * Adam de Boor.
12: *
13: * Redistribution and use in source and binary forms, with or without
14: * modification, are permitted provided that the following conditions
15: * are met:
16: * 1. Redistributions of source code must retain the above copyright
17: * notice, this list of conditions and the following disclaimer.
18: * 2. Redistributions in binary form must reproduce the above copyright
19: * notice, this list of conditions and the following disclaimer in the
20: * documentation and/or other materials provided with the distribution.
21: * 3. All advertising materials mentioning features or use of this software
22: * must display the following acknowledgement:
23: * This product includes software developed by the University of
24: * California, Berkeley and its contributors.
25: * 4. Neither the name of the University nor the names of its contributors
26: * may be used to endorse or promote products derived from this software
27: * without specific prior written permission.
28: *
29: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
30: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
33: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
37: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
38: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39: * SUCH DAMAGE.
40: */
41:
42: #ifndef lint
43: #if 0
1.6 millert 44: static char sccsid[] = "@(#)job.c 8.2 (Berkeley) 3/19/94";
1.1 deraadt 45: #else
1.21 ! espie 46: static char rcsid[] = "$OpenBSD: job.c,v 1.20 1999/12/18 21:58:07 espie Exp $";
1.1 deraadt 47: #endif
48: #endif /* not lint */
49:
50: /*-
51: * job.c --
52: * handle the creation etc. of our child processes.
53: *
54: * Interface:
55: * Job_Make Start the creation of the given target.
56: *
57: * Job_CatchChildren Check for and handle the termination of any
58: * children. This must be called reasonably
59: * frequently to keep the whole make going at
60: * a decent clip, since job table entries aren't
61: * removed until their process is caught this way.
62: * Its single argument is TRUE if the function
63: * should block waiting for a child to terminate.
64: *
65: * Job_CatchOutput Print any output our children have produced.
66: * Should also be called fairly frequently to
67: * keep the user informed of what's going on.
68: * If no output is waiting, it will block for
69: * a time given by the SEL_* constants, below,
70: * or until output is ready.
71: *
72: * Job_Init Called to intialize this module. in addition,
73: * any commands attached to the .BEGIN target
74: * are executed before this function returns.
75: * Hence, the makefile must have been parsed
76: * before this function is called.
77: *
1.12 espie 78: * Job_End Cleanup any memory used.
79: *
1.1 deraadt 80: * Job_Full Return TRUE if the job table is filled.
81: *
82: * Job_Empty Return TRUE if the job table is completely
83: * empty.
84: *
85: * Job_ParseShell Given the line following a .SHELL target, parse
86: * the line as a shell specification. Returns
87: * FAILURE if the spec was incorrect.
88: *
1.12 espie 89: * Job_Finish Perform any final processing which needs doing.
1.1 deraadt 90: * This includes the execution of any commands
91: * which have been/were attached to the .END
92: * target. It should only be called when the
93: * job table is empty.
94: *
95: * Job_AbortAll Abort all currently running jobs. It doesn't
96: * handle output or do anything for the jobs,
97: * just kills them. It should only be called in
98: * an emergency, as it were.
99: *
100: * Job_CheckCommands Verify that the commands for a target are
101: * ok. Provide them if necessary and possible.
102: *
103: * Job_Touch Update a target without really updating it.
104: *
105: * Job_Wait Wait for all currently-running jobs to finish.
106: */
107:
108: #include <sys/types.h>
109: #include <sys/stat.h>
110: #include <sys/file.h>
111: #include <sys/time.h>
112: #include <sys/wait.h>
113: #include <fcntl.h>
114: #include <errno.h>
1.3 niklas 115: #include <utime.h>
1.1 deraadt 116: #include <stdio.h>
117: #include <string.h>
118: #include <signal.h>
119: #include "make.h"
120: #include "hash.h"
121: #include "dir.h"
122: #include "job.h"
123: #include "pathnames.h"
1.2 deraadt 124: #ifdef REMOTE
125: #include "rmt.h"
1.6 millert 126: # define STATIC
1.2 deraadt 127: #else
128: # define STATIC static
129: #endif
1.1 deraadt 130:
131: extern int errno;
132:
133: /*
1.6 millert 134: * error handling variables
1.1 deraadt 135: */
136: static int errors = 0; /* number of errors reported */
137: static int aborting = 0; /* why is the make aborting? */
138: #define ABORT_ERROR 1 /* Because of an error */
139: #define ABORT_INTERRUPT 2 /* Because it was interrupted */
140: #define ABORT_WAIT 3 /* Waiting for jobs to finish */
141:
1.6 millert 142: /*
1.2 deraadt 143: * XXX: Avoid SunOS bug... FILENO() is fp->_file, and file
144: * is a char! So when we go above 127 we turn negative!
145: */
146: #define FILENO(a) ((unsigned) fileno(a))
1.1 deraadt 147:
148: /*
149: * post-make command processing. The node postCommands is really just the
150: * .END target but we keep it around to avoid having to search for it
151: * all the time.
152: */
153: static GNode *postCommands; /* node containing commands to execute when
154: * everything else is done */
155: static int numCommands; /* The number of commands actually printed
156: * for a target. Should this number be
157: * 0, no shell will be executed. */
158:
159: /*
160: * Return values from JobStart.
161: */
162: #define JOB_RUNNING 0 /* Job is running */
163: #define JOB_ERROR 1 /* Error in starting the job */
164: #define JOB_FINISHED 2 /* The job is already finished */
165: #define JOB_STOPPED 3 /* The job is stopped */
166:
167: /*
168: * tfile is the name of a file into which all shell commands are put. It is
1.7 millert 169: * used over by removing it before the child shell is executed. The XXXXXXXXXX
170: * in the string are replaced by mkstemp(3).
1.1 deraadt 171: */
1.7 millert 172: static char tfile[sizeof(TMPPAT)];
1.1 deraadt 173:
174:
175: /*
176: * Descriptions for various shells.
177: */
178: static Shell shells[] = {
179: /*
180: * CSH description. The csh can do echo control by playing
181: * with the setting of the 'echo' shell variable. Sadly,
182: * however, it is unable to do error control nicely.
183: */
184: {
185: "csh",
186: TRUE, "unset verbose", "set verbose", "unset verbose", 10,
187: FALSE, "echo \"%s\"\n", "csh -c \"%s || exit 0\"",
188: "v", "e",
189: },
190: /*
191: * SH description. Echo control is also possible and, under
192: * sun UNIX anyway, one can even control error checking.
193: */
194: {
195: "sh",
196: TRUE, "set -", "set -v", "set -", 5,
1.2 deraadt 197: TRUE, "set -e", "set +e",
198: #ifdef OLDBOURNESHELL
1.1 deraadt 199: FALSE, "echo \"%s\"\n", "sh -c '%s || exit 0'\n",
1.2 deraadt 200: #endif
1.1 deraadt 201: "v", "e",
202: },
203: /*
204: * UNKNOWN.
205: */
206: {
1.2 deraadt 207: (char *) 0,
208: FALSE, (char *) 0, (char *) 0, (char *) 0, 0,
209: FALSE, (char *) 0, (char *) 0,
210: (char *) 0, (char *) 0,
1.1 deraadt 211: }
212: };
213: static Shell *commandShell = &shells[DEFSHELL];/* this is the shell to
214: * which we pass all
215: * commands in the Makefile.
216: * It is set by the
217: * Job_ParseShell function */
1.2 deraadt 218: static char *shellPath = NULL, /* full pathname of
1.1 deraadt 219: * executable image */
1.12 espie 220: *shellName = NULL, /* last component of shell */
221: *shellArgv = NULL; /* Custom shell args */
1.1 deraadt 222:
223:
224: static int maxJobs; /* The most children we can run at once */
225: static int maxLocal; /* The most local ones we can have */
1.2 deraadt 226: STATIC int nJobs; /* The number of children currently running */
227: STATIC int nLocal; /* The number of local children */
228: STATIC Lst jobs; /* The structures that describe them */
229: STATIC Boolean jobFull; /* Flag to tell when the job table is full. It
1.1 deraadt 230: * is set TRUE when (1) the total number of
231: * running jobs equals the maximum allowed or
232: * (2) a job can only be run locally, but
233: * nLocal equals maxLocal */
234: #ifndef RMT_WILL_WATCH
1.8 deraadt 235: static fd_set *outputsp; /* Set of descriptors of pipes connected to
1.1 deraadt 236: * the output channels of children */
1.8 deraadt 237: static int outputsn;
1.1 deraadt 238: #endif
239:
1.2 deraadt 240: STATIC GNode *lastNode; /* The node for which output was most recently
1.1 deraadt 241: * produced. */
1.2 deraadt 242: STATIC char *targFmt; /* Format string to use to head output from a
1.1 deraadt 243: * job when it's not the most-recent job heard
244: * from */
1.2 deraadt 245:
246: #ifdef REMOTE
247: # define TARG_FMT "--- %s at %s ---\n" /* Default format */
248: # define MESSAGE(fp, gn) \
249: (void) fprintf(fp, targFmt, gn->name, gn->rem.hname);
250: #else
251: # define TARG_FMT "--- %s ---\n" /* Default format */
252: # define MESSAGE(fp, gn) \
253: (void) fprintf(fp, targFmt, gn->name);
254: #endif
1.1 deraadt 255:
256: /*
257: * When JobStart attempts to run a job remotely but can't, and isn't allowed
258: * to run the job locally, or when Job_CatchChildren detects a job that has
259: * been migrated home, the job is placed on the stoppedJobs queue to be run
1.6 millert 260: * when the next job finishes.
1.1 deraadt 261: */
1.2 deraadt 262: STATIC Lst stoppedJobs; /* Lst of Job structures describing
1.1 deraadt 263: * jobs that were stopped due to concurrency
264: * limits or migration home */
265:
266:
267: #if defined(USE_PGRP) && defined(SYSV)
1.2 deraadt 268: # define KILL(pid, sig) killpg(-(pid), (sig))
1.1 deraadt 269: #else
270: # if defined(USE_PGRP)
1.2 deraadt 271: # define KILL(pid, sig) killpg((pid), (sig))
1.1 deraadt 272: # else
1.2 deraadt 273: # define KILL(pid, sig) kill((pid), (sig))
1.1 deraadt 274: # endif
275: #endif
276:
1.6 millert 277: /*
1.2 deraadt 278: * Grmpf... There is no way to set bits of the wait structure
279: * anymore with the stupid W*() macros. I liked the union wait
280: * stuff much more. So, we devise our own macros... This is
281: * really ugly, use dramamine sparingly. You have been warned.
282: */
283: #define W_SETMASKED(st, val, fun) \
284: { \
285: int sh = (int) ~0; \
286: int mask = fun(sh); \
287: \
288: for (sh = 0; ((mask >> sh) & 1) == 0; sh++) \
289: continue; \
290: *(st) = (*(st) & ~mask) | ((val) << sh); \
291: }
292:
293: #define W_SETTERMSIG(st, val) W_SETMASKED(st, val, WTERMSIG)
294: #define W_SETEXITSTATUS(st, val) W_SETMASKED(st, val, WEXITSTATUS)
295:
296:
1.1 deraadt 297: static int JobCondPassSig __P((ClientData, ClientData));
298: static void JobPassSig __P((int));
299: static int JobCmpPid __P((ClientData, ClientData));
300: static int JobPrintCommand __P((ClientData, ClientData));
301: static int JobSaveCommand __P((ClientData, ClientData));
1.2 deraadt 302: static void JobClose __P((Job *));
303: #ifdef REMOTE
304: static int JobCmpRmtID __P((Job *, int));
305: # ifdef RMT_WILL_WATCH
306: static void JobLocalInput __P((int, Job *));
307: # endif
308: #else
309: static void JobFinish __P((Job *, int *));
1.1 deraadt 310: static void JobExec __P((Job *, char **));
1.2 deraadt 311: #endif
1.1 deraadt 312: static void JobMakeArgv __P((Job *, char **));
313: static void JobRestart __P((Job *));
314: static int JobStart __P((GNode *, int, Job *));
1.6 millert 315: static char *JobOutput __P((Job *, char *, char *, int));
1.1 deraadt 316: static void JobDoOutput __P((Job *, Boolean));
317: static Shell *JobMatchShell __P((char *));
1.2 deraadt 318: static void JobInterrupt __P((int, int));
319: static void JobRestartJobs __P((void));
1.1 deraadt 320:
321: /*-
322: *-----------------------------------------------------------------------
323: * JobCondPassSig --
324: * Pass a signal to a job if the job is remote or if USE_PGRP
325: * is defined.
326: *
327: * Results:
328: * === 0
329: *
330: * Side Effects:
331: * None, except the job may bite it.
332: *
333: *-----------------------------------------------------------------------
334: */
335: static int
336: JobCondPassSig(jobp, signop)
337: ClientData jobp; /* Job to biff */
338: ClientData signop; /* Signal to send it */
339: {
340: Job *job = (Job *) jobp;
341: int signo = *(int *) signop;
342: #ifdef RMT_WANTS_SIGNALS
343: if (job->flags & JOB_REMOTE) {
1.2 deraadt 344: (void) Rmt_Signal(job, signo);
1.1 deraadt 345: } else {
346: KILL(job->pid, signo);
347: }
348: #else
349: /*
350: * Assume that sending the signal to job->pid will signal any remote
351: * job as well.
352: */
1.2 deraadt 353: if (DEBUG(JOB)) {
1.6 millert 354: (void) fprintf(stdout,
1.2 deraadt 355: "JobCondPassSig passing signal %d to child %d.\n",
356: signo, job->pid);
357: (void) fflush(stdout);
358: }
1.1 deraadt 359: KILL(job->pid, signo);
360: #endif
1.2 deraadt 361: return 0;
1.1 deraadt 362: }
363:
364: /*-
365: *-----------------------------------------------------------------------
366: * JobPassSig --
367: * Pass a signal on to all remote jobs and to all local jobs if
368: * USE_PGRP is defined, then die ourselves.
369: *
370: * Results:
371: * None.
372: *
373: * Side Effects:
374: * We die by the same signal.
1.6 millert 375: *
1.1 deraadt 376: *-----------------------------------------------------------------------
377: */
378: static void
379: JobPassSig(signo)
380: int signo; /* The signal number we've received */
381: {
1.2 deraadt 382: sigset_t nmask, omask;
1.3 niklas 383: struct sigaction act;
1.6 millert 384:
1.2 deraadt 385: if (DEBUG(JOB)) {
386: (void) fprintf(stdout, "JobPassSig(%d) called.\n", signo);
387: (void) fflush(stdout);
388: }
389: Lst_ForEach(jobs, JobCondPassSig, (ClientData) &signo);
1.1 deraadt 390:
391: /*
392: * Deal with proper cleanup based on the signal received. We only run
393: * the .INTERRUPT target if the signal was in fact an interrupt. The other
394: * three termination signals are more of a "get out *now*" command.
395: */
396: if (signo == SIGINT) {
1.2 deraadt 397: JobInterrupt(TRUE, signo);
1.1 deraadt 398: } else if ((signo == SIGHUP) || (signo == SIGTERM) || (signo == SIGQUIT)) {
1.2 deraadt 399: JobInterrupt(FALSE, signo);
1.1 deraadt 400: }
1.6 millert 401:
1.1 deraadt 402: /*
403: * Leave gracefully if SIGQUIT, rather than core dumping.
404: */
405: if (signo == SIGQUIT) {
406: Finish(0);
407: }
1.6 millert 408:
1.1 deraadt 409: /*
410: * Send ourselves the signal now we've given the message to everyone else.
411: * Note we block everything else possible while we're getting the signal.
412: * This ensures that all our jobs get continued when we wake up before
413: * we take any other signal.
414: */
1.3 niklas 415: sigemptyset(&nmask);
416: sigaddset(&nmask, signo);
417: sigprocmask(SIG_SETMASK, &nmask, &omask);
1.10 deraadt 418: memset(&act, 0, sizeof act);
1.3 niklas 419: act.sa_handler = SIG_DFL;
420: sigemptyset(&act.sa_mask);
421: act.sa_flags = 0;
422: sigaction(signo, &act, NULL);
1.2 deraadt 423:
424: if (DEBUG(JOB)) {
425: (void) fprintf(stdout,
426: "JobPassSig passing signal to self, mask = %x.\n",
427: ~0 & ~(1 << (signo-1)));
428: (void) fflush(stdout);
429: }
430: (void) signal(signo, SIG_DFL);
1.1 deraadt 431:
1.2 deraadt 432: (void) KILL(getpid(), signo);
1.1 deraadt 433:
434: signo = SIGCONT;
435: Lst_ForEach(jobs, JobCondPassSig, (ClientData) &signo);
436:
1.2 deraadt 437: (void) sigprocmask(SIG_SETMASK, &omask, NULL);
1.3 niklas 438: sigprocmask(SIG_SETMASK, &omask, NULL);
439: act.sa_handler = JobPassSig;
440: sigaction(signo, &act, NULL);
1.1 deraadt 441: }
442:
443: /*-
444: *-----------------------------------------------------------------------
445: * JobCmpPid --
446: * Compare the pid of the job with the given pid and return 0 if they
447: * are equal. This function is called from Job_CatchChildren via
448: * Lst_Find to find the job descriptor of the finished job.
449: *
450: * Results:
451: * 0 if the pid's match
452: *
453: * Side Effects:
454: * None
455: *-----------------------------------------------------------------------
456: */
457: static int
1.2 deraadt 458: JobCmpPid(job, pid)
1.1 deraadt 459: ClientData job; /* job to examine */
460: ClientData pid; /* process id desired */
461: {
1.6 millert 462: return *(int *) pid - ((Job *) job)->pid;
1.1 deraadt 463: }
464:
1.2 deraadt 465: #ifdef REMOTE
466: /*-
467: *-----------------------------------------------------------------------
468: * JobCmpRmtID --
469: * Compare the rmtID of the job with the given rmtID and return 0 if they
1.6 millert 470: * are equal.
1.2 deraadt 471: *
472: * Results:
473: * 0 if the rmtID's match
474: *
475: * Side Effects:
476: * None.
477: *-----------------------------------------------------------------------
478: */
479: static int
480: JobCmpRmtID(job, rmtID)
481: ClientData job; /* job to examine */
482: ClientData rmtID; /* remote id desired */
483: {
484: return(*(int *) rmtID - *(int *) job->rmtID);
485: }
486: #endif
487:
1.1 deraadt 488: /*-
489: *-----------------------------------------------------------------------
490: * JobPrintCommand --
491: * Put out another command for the given job. If the command starts
492: * with an @ or a - we process it specially. In the former case,
493: * so long as the -s and -n flags weren't given to make, we stick
494: * a shell-specific echoOff command in the script. In the latter,
495: * we ignore errors for the entire job, unless the shell has error
496: * control.
497: * If the command is just "..." we take all future commands for this
498: * job to be commands to be executed once the entire graph has been
499: * made and return non-zero to signal that the end of the commands
500: * was reached. These commands are later attached to the postCommands
501: * node and executed by Job_End when all things are done.
502: * This function is called from JobStart via Lst_ForEach.
503: *
504: * Results:
505: * Always 0, unless the command was "..."
506: *
507: * Side Effects:
508: * If the command begins with a '-' and the shell has no error control,
509: * the JOB_IGNERR flag is set in the job descriptor.
510: * If the command is "..." and we're not ignoring such things,
511: * tailCmds is set to the successor node of the cmd.
512: * numCommands is incremented if the command is actually printed.
513: *-----------------------------------------------------------------------
514: */
515: static int
1.2 deraadt 516: JobPrintCommand(cmdp, jobp)
1.1 deraadt 517: ClientData cmdp; /* command string to print */
518: ClientData jobp; /* job for which to print it */
519: {
520: Boolean noSpecials; /* true if we shouldn't worry about
521: * inserting special commands into
522: * the input stream. */
523: Boolean shutUp = FALSE; /* true if we put a no echo command
524: * into the command file */
525: Boolean errOff = FALSE; /* true if we turned error checking
526: * off before printing the command
527: * and need to turn it back on */
528: char *cmdTemplate; /* Template to use when printing the
529: * command */
530: char *cmdStart; /* Start of expanded command */
531: LstNode cmdNode; /* Node for replacing the command */
532: char *cmd = (char *) cmdp;
1.6 millert 533: Job *job = (Job *) jobp;
1.1 deraadt 534:
1.2 deraadt 535: noSpecials = (noExecute && !(job->node->type & OP_MAKE));
1.1 deraadt 536:
1.2 deraadt 537: if (strcmp(cmd, "...") == 0) {
1.6 millert 538: job->node->type |= OP_SAVE_CMDS;
1.1 deraadt 539: if ((job->flags & JOB_IGNDOTS) == 0) {
1.2 deraadt 540: job->tailCmds = Lst_Succ(Lst_Member(job->node->commands,
541: (ClientData)cmd));
1.6 millert 542: return 1;
1.2 deraadt 543: }
1.6 millert 544: return 0;
1.1 deraadt 545: }
546:
1.2 deraadt 547: #define DBPRINTF(fmt, arg) if (DEBUG(JOB)) { \
548: (void) fprintf(stdout, fmt, arg); \
549: (void) fflush(stdout); \
550: } \
551: (void) fprintf(job->cmdFILE, fmt, arg); \
552: (void) fflush(job->cmdFILE);
1.1 deraadt 553:
554: numCommands += 1;
555:
556: /*
557: * For debugging, we replace each command with the result of expanding
558: * the variables in the command.
559: */
1.2 deraadt 560: cmdNode = Lst_Member(job->node->commands, (ClientData)cmd);
1.16 espie 561: cmdStart = cmd = Var_Subst(cmd, job->node, FALSE);
1.2 deraadt 562: Lst_Replace(cmdNode, (ClientData)cmdStart);
1.1 deraadt 563:
564: cmdTemplate = "%s\n";
565:
566: /*
567: * Check for leading @' and -'s to control echoing and error checking.
568: */
569: while (*cmd == '@' || *cmd == '-') {
570: if (*cmd == '@') {
571: shutUp = TRUE;
572: } else {
573: errOff = TRUE;
574: }
575: cmd++;
576: }
577:
578: while (isspace((unsigned char) *cmd))
579: cmd++;
580:
581: if (shutUp) {
1.2 deraadt 582: if (!(job->flags & JOB_SILENT) && !noSpecials &&
1.1 deraadt 583: commandShell->hasEchoCtl) {
1.2 deraadt 584: DBPRINTF("%s\n", commandShell->echoOff);
1.1 deraadt 585: } else {
586: shutUp = FALSE;
587: }
588: }
589:
590: if (errOff) {
1.2 deraadt 591: if ( !(job->flags & JOB_IGNERR) && !noSpecials) {
1.1 deraadt 592: if (commandShell->hasErrCtl) {
593: /*
594: * we don't want the error-control commands showing
595: * up either, so we turn off echoing while executing
596: * them. We could put another field in the shell
597: * structure to tell JobDoOutput to look for this
598: * string too, but why make it any more complex than
599: * it already is?
600: */
1.2 deraadt 601: if (!(job->flags & JOB_SILENT) && !shutUp &&
1.1 deraadt 602: commandShell->hasEchoCtl) {
1.2 deraadt 603: DBPRINTF("%s\n", commandShell->echoOff);
604: DBPRINTF("%s\n", commandShell->ignErr);
605: DBPRINTF("%s\n", commandShell->echoOn);
1.1 deraadt 606: } else {
1.2 deraadt 607: DBPRINTF("%s\n", commandShell->ignErr);
1.1 deraadt 608: }
609: } else if (commandShell->ignErr &&
1.2 deraadt 610: (*commandShell->ignErr != '\0'))
1.1 deraadt 611: {
612: /*
613: * The shell has no error control, so we need to be
614: * weird to get it to ignore any errors from the command.
615: * If echoing is turned on, we turn it off and use the
616: * errCheck template to echo the command. Leave echoing
617: * off so the user doesn't see the weirdness we go through
618: * to ignore errors. Set cmdTemplate to use the weirdness
619: * instead of the simple "%s\n" template.
620: */
1.2 deraadt 621: if (!(job->flags & JOB_SILENT) && !shutUp &&
1.1 deraadt 622: commandShell->hasEchoCtl) {
1.2 deraadt 623: DBPRINTF("%s\n", commandShell->echoOff);
624: DBPRINTF(commandShell->errCheck, cmd);
1.1 deraadt 625: shutUp = TRUE;
626: }
627: cmdTemplate = commandShell->ignErr;
628: /*
1.6 millert 629: * The error ignoration (hee hee) is already taken care
1.1 deraadt 630: * of by the ignErr template, so pretend error checking
631: * is still on.
632: */
633: errOff = FALSE;
634: } else {
635: errOff = FALSE;
636: }
637: } else {
638: errOff = FALSE;
639: }
640: }
1.6 millert 641:
1.2 deraadt 642: DBPRINTF(cmdTemplate, cmd);
1.6 millert 643:
1.1 deraadt 644: if (errOff) {
645: /*
646: * If echoing is already off, there's no point in issuing the
647: * echoOff command. Otherwise we issue it and pretend it was on
648: * for the whole command...
649: */
650: if (!shutUp && !(job->flags & JOB_SILENT) && commandShell->hasEchoCtl){
1.2 deraadt 651: DBPRINTF("%s\n", commandShell->echoOff);
1.1 deraadt 652: shutUp = TRUE;
653: }
1.2 deraadt 654: DBPRINTF("%s\n", commandShell->errCheck);
1.1 deraadt 655: }
656: if (shutUp) {
1.2 deraadt 657: DBPRINTF("%s\n", commandShell->echoOn);
1.1 deraadt 658: }
1.2 deraadt 659: return 0;
1.1 deraadt 660: }
661:
662: /*-
663: *-----------------------------------------------------------------------
664: * JobSaveCommand --
665: * Save a command to be executed when everything else is done.
666: * Callback function for JobFinish...
667: *
668: * Results:
669: * Always returns 0
670: *
671: * Side Effects:
672: * The command is tacked onto the end of postCommands's commands list.
673: *
674: *-----------------------------------------------------------------------
675: */
676: static int
1.2 deraadt 677: JobSaveCommand(cmd, gn)
1.1 deraadt 678: ClientData cmd;
679: ClientData gn;
680: {
1.16 espie 681: cmd = (ClientData) Var_Subst((char *) cmd, (GNode *) gn, FALSE);
1.20 espie 682: Lst_AtEnd(postCommands->commands, cmd);
1.2 deraadt 683: return(0);
684: }
685:
686:
687: /*-
688: *-----------------------------------------------------------------------
689: * JobClose --
690: * Called to close both input and output pipes when a job is finished.
691: *
692: * Results:
693: * Nada
694: *
695: * Side Effects:
696: * The file descriptors associated with the job are closed.
697: *
698: *-----------------------------------------------------------------------
699: */
700: static void
701: JobClose(job)
702: Job *job;
703: {
704: if (usePipes) {
705: #ifdef RMT_WILL_WATCH
706: Rmt_Ignore(job->inPipe);
707: #else
1.8 deraadt 708: FD_CLR(job->inPipe, outputsp);
1.2 deraadt 709: #endif
710: if (job->outPipe != job->inPipe) {
711: (void) close(job->outPipe);
712: }
713: JobDoOutput(job, TRUE);
714: (void) close(job->inPipe);
715: } else {
716: (void) close(job->outFd);
717: JobDoOutput(job, TRUE);
718: }
1.1 deraadt 719: }
720:
721: /*-
722: *-----------------------------------------------------------------------
723: * JobFinish --
724: * Do final processing for the given job including updating
725: * parents and starting new jobs as available/necessary. Note
726: * that we pay no attention to the JOB_IGNERR flag here.
727: * This is because when we're called because of a noexecute flag
728: * or something, jstat.w_status is 0 and when called from
729: * Job_CatchChildren, the status is zeroed if it s/b ignored.
730: *
731: * Results:
732: * None
733: *
734: * Side Effects:
735: * Some nodes may be put on the toBeMade queue.
736: * Final commands for the job are placed on postCommands.
737: *
1.6 millert 738: * If we got an error and are aborting (aborting == ABORT_ERROR) and
1.1 deraadt 739: * the job list is now empty, we are done for the day.
1.6 millert 740: * If we recognized an error (errors !=0), we set the aborting flag
1.1 deraadt 741: * to ABORT_ERROR so no more jobs will be started.
742: *-----------------------------------------------------------------------
743: */
744: /*ARGSUSED*/
745: static void
1.2 deraadt 746: JobFinish(job, status)
747: Job *job; /* job to finish */
748: int *status; /* sub-why job went away */
749: {
750: Boolean done;
751:
752: if ((WIFEXITED(*status) &&
753: (((WEXITSTATUS(*status) != 0) && !(job->flags & JOB_IGNERR)))) ||
754: (WIFSIGNALED(*status) && (WTERMSIG(*status) != SIGCONT)))
1.1 deraadt 755: {
756: /*
757: * If it exited non-zero and either we're doing things our
758: * way or we're not ignoring errors, the job is finished.
759: * Similarly, if the shell died because of a signal
760: * the job is also finished. In these
761: * cases, finish out the job's output before printing the exit
762: * status...
763: */
1.2 deraadt 764: #ifdef REMOTE
765: KILL(job->pid, SIGCONT);
766: #endif
767: JobClose(job);
1.1 deraadt 768: if (job->cmdFILE != NULL && job->cmdFILE != stdout) {
1.2 deraadt 769: (void) fclose(job->cmdFILE);
1.1 deraadt 770: }
771: done = TRUE;
1.2 deraadt 772: #ifdef REMOTE
773: if (job->flags & JOB_REMOTE)
774: Rmt_Done(job->rmtID, job->node);
775: #endif
776: } else if (WIFEXITED(*status)) {
1.1 deraadt 777: /*
778: * Deal with ignored errors in -B mode. We need to print a message
779: * telling of the ignored error as well as setting status.w_status
780: * to 0 so the next command gets run. To do this, we set done to be
1.2 deraadt 781: * TRUE if in -B mode and the job exited non-zero.
782: */
783: done = WEXITSTATUS(*status) != 0;
1.6 millert 784: /*
1.2 deraadt 785: * Old comment said: "Note we don't
1.1 deraadt 786: * want to close down any of the streams until we know we're at the
1.2 deraadt 787: * end."
788: * But we do. Otherwise when are we going to print the rest of the
789: * stuff?
790: */
791: JobClose(job);
792: #ifdef REMOTE
793: if (job->flags & JOB_REMOTE)
794: Rmt_Done(job->rmtID, job->node);
795: #endif /* REMOTE */
1.1 deraadt 796: } else {
797: /*
798: * No need to close things down or anything.
799: */
800: done = FALSE;
801: }
1.6 millert 802:
1.1 deraadt 803: if (done ||
1.2 deraadt 804: WIFSTOPPED(*status) ||
805: (WIFSIGNALED(*status) && (WTERMSIG(*status) == SIGCONT)) ||
1.1 deraadt 806: DEBUG(JOB))
807: {
808: FILE *out;
1.6 millert 809:
1.2 deraadt 810: if (compatMake && !usePipes && (job->flags & JOB_IGNERR)) {
1.1 deraadt 811: /*
812: * If output is going to a file and this job is ignoring
813: * errors, arrange to have the exit status sent to the
814: * output file as well.
815: */
1.2 deraadt 816: out = fdopen(job->outFd, "w");
1.1 deraadt 817: } else {
818: out = stdout;
819: }
820:
1.2 deraadt 821: if (WIFEXITED(*status)) {
822: if (DEBUG(JOB)) {
823: (void) fprintf(stdout, "Process %d exited.\n", job->pid);
824: (void) fflush(stdout);
825: }
826: if (WEXITSTATUS(*status) != 0) {
1.1 deraadt 827: if (usePipes && job->node != lastNode) {
1.2 deraadt 828: MESSAGE(out, job->node);
1.1 deraadt 829: lastNode = job->node;
830: }
1.2 deraadt 831: (void) fprintf(out, "*** Error code %d%s\n",
832: WEXITSTATUS(*status),
833: (job->flags & JOB_IGNERR) ? "(ignored)" : "");
1.1 deraadt 834:
835: if (job->flags & JOB_IGNERR) {
1.2 deraadt 836: *status = 0;
1.1 deraadt 837: }
838: } else if (DEBUG(JOB)) {
839: if (usePipes && job->node != lastNode) {
1.2 deraadt 840: MESSAGE(out, job->node);
1.1 deraadt 841: lastNode = job->node;
842: }
1.2 deraadt 843: (void) fprintf(out, "*** Completed successfully\n");
844: }
845: } else if (WIFSTOPPED(*status)) {
846: if (DEBUG(JOB)) {
847: (void) fprintf(stdout, "Process %d stopped.\n", job->pid);
848: (void) fflush(stdout);
1.1 deraadt 849: }
850: if (usePipes && job->node != lastNode) {
1.2 deraadt 851: MESSAGE(out, job->node);
1.1 deraadt 852: lastNode = job->node;
853: }
1.2 deraadt 854: if (!(job->flags & JOB_REMIGRATE)) {
1.6 millert 855: (void) fprintf(out, "*** Stopped -- signal %d\n",
856: WSTOPSIG(*status));
1.1 deraadt 857: }
858: job->flags |= JOB_RESUME;
1.20 espie 859: Lst_AtEnd(stoppedJobs, (ClientData)job);
1.2 deraadt 860: #ifdef REMOTE
861: if (job->flags & JOB_REMIGRATE)
862: JobRestart(job);
863: #endif
864: (void) fflush(out);
1.1 deraadt 865: return;
1.2 deraadt 866: } else if (WTERMSIG(*status) == SIGCONT) {
1.1 deraadt 867: /*
868: * If the beastie has continued, shift the Job from the stopped
1.6 millert 869: * list to the running one (or re-stop it if concurrency is
1.1 deraadt 870: * exceeded) and go and get another child.
871: */
872: if (job->flags & (JOB_RESUME|JOB_REMIGRATE|JOB_RESTART)) {
873: if (usePipes && job->node != lastNode) {
1.2 deraadt 874: MESSAGE(out, job->node);
1.1 deraadt 875: lastNode = job->node;
876: }
1.2 deraadt 877: (void) fprintf(out, "*** Continued\n");
1.1 deraadt 878: }
1.2 deraadt 879: if (!(job->flags & JOB_CONTINUING)) {
880: if (DEBUG(JOB)) {
881: (void) fprintf(stdout,
882: "Warning: process %d was not continuing.\n",
883: job->pid);
884: (void) fflush(stdout);
885: }
886: #ifdef notdef
887: /*
888: * We don't really want to restart a job from scratch just
889: * because it continued, especially not without killing the
890: * continuing process! That's why this is ifdef'ed out.
891: * FD - 9/17/90
892: */
1.1 deraadt 893: JobRestart(job);
1.2 deraadt 894: #endif
895: }
896: job->flags &= ~JOB_CONTINUING;
897: Lst_AtEnd(jobs, (ClientData)job);
898: nJobs += 1;
899: if (!(job->flags & JOB_REMOTE)) {
900: if (DEBUG(JOB)) {
901: (void) fprintf(stdout,
902: "Process %d is continuing locally.\n",
903: job->pid);
904: (void) fflush(stdout);
905: }
906: nLocal += 1;
1.1 deraadt 907: }
1.2 deraadt 908: if (nJobs == maxJobs) {
909: jobFull = TRUE;
910: if (DEBUG(JOB)) {
911: (void) fprintf(stdout, "Job queue is full.\n");
912: (void) fflush(stdout);
913: }
914: }
915: (void) fflush(out);
916: return;
1.1 deraadt 917: } else {
918: if (usePipes && job->node != lastNode) {
1.2 deraadt 919: MESSAGE(out, job->node);
1.1 deraadt 920: lastNode = job->node;
921: }
1.2 deraadt 922: (void) fprintf(out, "*** Signal %d\n", WTERMSIG(*status));
1.1 deraadt 923: }
924:
1.2 deraadt 925: (void) fflush(out);
1.1 deraadt 926: }
927:
928: /*
929: * Now handle the -B-mode stuff. If the beast still isn't finished,
930: * try and restart the job on the next command. If JobStart says it's
931: * ok, it's ok. If there's an error, this puppy is done.
932: */
1.2 deraadt 933: if (compatMake && (WIFEXITED(*status) &&
934: !Lst_IsAtEnd(job->node->commands))) {
935: switch (JobStart(job->node, job->flags & JOB_IGNDOTS, job)) {
936: case JOB_RUNNING:
937: done = FALSE;
938: break;
939: case JOB_ERROR:
940: done = TRUE;
941: W_SETEXITSTATUS(status, 1);
942: break;
943: case JOB_FINISHED:
944: /*
945: * If we got back a JOB_FINISHED code, JobStart has already
946: * called Make_Update and freed the job descriptor. We set
947: * done to false here to avoid fake cycles and double frees.
948: * JobStart needs to do the update so we can proceed up the
949: * graph when given the -n flag..
950: */
951: done = FALSE;
952: break;
1.1 deraadt 953: }
954: } else {
955: done = TRUE;
956: }
1.6 millert 957:
1.1 deraadt 958:
959: if (done &&
960: (aborting != ABORT_ERROR) &&
961: (aborting != ABORT_INTERRUPT) &&
1.2 deraadt 962: (*status == 0))
1.1 deraadt 963: {
964: /*
965: * As long as we aren't aborting and the job didn't return a non-zero
966: * status that we shouldn't ignore, we call Make_Update to update
967: * the parents. In addition, any saved commands for the node are placed
968: * on the .END target.
969: */
1.18 espie 970: if (job->tailCmds != NULL) {
1.2 deraadt 971: Lst_ForEachFrom(job->node->commands, job->tailCmds,
1.1 deraadt 972: JobSaveCommand,
1.2 deraadt 973: (ClientData)job->node);
1.1 deraadt 974: }
975: job->node->made = MADE;
1.2 deraadt 976: Make_Update(job->node);
1.1 deraadt 977: free((Address)job);
1.5 briggs 978: } else if (*status != 0) {
1.1 deraadt 979: errors += 1;
980: free((Address)job);
981: }
982:
1.2 deraadt 983: JobRestartJobs();
1.1 deraadt 984:
985: /*
986: * Set aborting if any error.
987: */
988: if (errors && !keepgoing && (aborting != ABORT_INTERRUPT)) {
989: /*
990: * If we found any errors in this batch of children and the -k flag
991: * wasn't given, we set the aborting flag so no more jobs get
992: * started.
993: */
994: aborting = ABORT_ERROR;
995: }
1.6 millert 996:
1.1 deraadt 997: if ((aborting == ABORT_ERROR) && Job_Empty()) {
998: /*
999: * If we are aborting and the job table is now empty, we finish.
1000: */
1.2 deraadt 1001: (void) eunlink(tfile);
1002: Finish(errors);
1.1 deraadt 1003: }
1004: }
1005:
1006: /*-
1007: *-----------------------------------------------------------------------
1008: * Job_Touch --
1009: * Touch the given target. Called by JobStart when the -t flag was
1010: * given
1011: *
1012: * Results:
1013: * None
1014: *
1015: * Side Effects:
1016: * The data modification of the file is changed. In addition, if the
1017: * file did not exist, it is created.
1018: *-----------------------------------------------------------------------
1019: */
1020: void
1.2 deraadt 1021: Job_Touch(gn, silent)
1.1 deraadt 1022: GNode *gn; /* the node of the file to touch */
1023: Boolean silent; /* TRUE if should not print messages */
1024: {
1025: int streamID; /* ID of stream opened to do the touch */
1.3 niklas 1026: struct utimbuf times; /* Times for utime() call */
1.1 deraadt 1027:
1028: if (gn->type & (OP_JOIN|OP_USE|OP_EXEC|OP_OPTIONAL)) {
1029: /*
1030: * .JOIN, .USE, .ZEROTIME and .OPTIONAL targets are "virtual" targets
1031: * and, as such, shouldn't really be created.
1032: */
1033: return;
1034: }
1.6 millert 1035:
1.1 deraadt 1036: if (!silent) {
1.2 deraadt 1037: (void) fprintf(stdout, "touch %s\n", gn->name);
1038: (void) fflush(stdout);
1.1 deraadt 1039: }
1040:
1041: if (noExecute) {
1042: return;
1043: }
1044:
1045: if (gn->type & OP_ARCHV) {
1.2 deraadt 1046: Arch_Touch(gn);
1.1 deraadt 1047: } else if (gn->type & OP_LIB) {
1.2 deraadt 1048: Arch_TouchLib(gn);
1.1 deraadt 1049: } else {
1050: char *file = gn->path ? gn->path : gn->name;
1051:
1.3 niklas 1052: times.actime = times.modtime = now;
1053: if (utime(file, ×) < 0){
1.2 deraadt 1054: streamID = open(file, O_RDWR | O_CREAT, 0666);
1.1 deraadt 1055:
1056: if (streamID >= 0) {
1057: char c;
1058:
1059: /*
1060: * Read and write a byte to the file to change the
1061: * modification time, then close the file.
1062: */
1063: if (read(streamID, &c, 1) == 1) {
1.11 millert 1064: (void) lseek(streamID, 0, SEEK_SET);
1.2 deraadt 1065: (void) write(streamID, &c, 1);
1.1 deraadt 1066: }
1.6 millert 1067:
1.2 deraadt 1068: (void) close(streamID);
1069: } else {
1070: (void) fprintf(stdout, "*** couldn't touch %s: %s",
1071: file, strerror(errno));
1072: (void) fflush(stdout);
1073: }
1.1 deraadt 1074: }
1075: }
1076: }
1077:
1078: /*-
1079: *-----------------------------------------------------------------------
1080: * Job_CheckCommands --
1.6 millert 1081: * Make sure the given node has all the commands it needs.
1.1 deraadt 1082: *
1083: * Results:
1084: * TRUE if the commands list is/was ok.
1085: *
1086: * Side Effects:
1087: * The node will have commands from the .DEFAULT rule added to it
1088: * if it needs them.
1089: *-----------------------------------------------------------------------
1090: */
1091: Boolean
1.2 deraadt 1092: Job_CheckCommands(gn, abortProc)
1.1 deraadt 1093: GNode *gn; /* The target whose commands need
1094: * verifying */
1.6 millert 1095: void (*abortProc) __P((char *, ...));
1.1 deraadt 1096: /* Function to abort with message */
1097: {
1.2 deraadt 1098: if (OP_NOP(gn->type) && Lst_IsEmpty(gn->commands) &&
1.1 deraadt 1099: (gn->type & OP_LIB) == 0) {
1100: /*
1101: * No commands. Look for .DEFAULT rule from which we might infer
1.6 millert 1102: * commands
1.1 deraadt 1103: */
1.18 espie 1104: if ((DEFAULT != NULL) && !Lst_IsEmpty(DEFAULT->commands)) {
1.1 deraadt 1105: /*
1106: * Make only looks for a .DEFAULT if the node was never the
1107: * target of an operator, so that's what we do too. If
1108: * a .DEFAULT was given, we substitute its commands for gn's
1109: * commands and set the IMPSRC variable to be the target's name
1110: * The DEFAULT node acts like a transformation rule, in that
1111: * gn also inherits any attributes or sources attached to
1112: * .DEFAULT itself.
1113: */
1114: Make_HandleUse(DEFAULT, gn);
1.15 espie 1115: Var_Set(IMPSRC, Var_Value(TARGET, gn), gn);
1.2 deraadt 1116: } else if (Dir_MTime(gn) == 0) {
1.1 deraadt 1117: /*
1118: * The node wasn't the target of an operator we have no .DEFAULT
1119: * rule to go on and the target doesn't already exist. There's
1120: * nothing more we can do for this branch. If the -k flag wasn't
1121: * given, we stop in our tracks, otherwise we just don't update
1.6 millert 1122: * this node's parents so they never get examined.
1.1 deraadt 1123: */
1.2 deraadt 1124: static const char msg[] = "make: don't know how to make";
1125:
1.1 deraadt 1126: if (gn->type & OP_OPTIONAL) {
1.2 deraadt 1127: (void) fprintf(stdout, "%s %s(ignored)\n", msg, gn->name);
1128: (void) fflush(stdout);
1.1 deraadt 1129: } else if (keepgoing) {
1.2 deraadt 1130: (void) fprintf(stdout, "%s %s(continuing)\n", msg, gn->name);
1131: (void) fflush(stdout);
1132: return FALSE;
1.1 deraadt 1133: } else {
1.2 deraadt 1134: (*abortProc)("%s %s. Stop", msg, gn->name);
1135: return FALSE;
1.1 deraadt 1136: }
1137: }
1138: }
1.2 deraadt 1139: return TRUE;
1.1 deraadt 1140: }
1141: #ifdef RMT_WILL_WATCH
1142: /*-
1143: *-----------------------------------------------------------------------
1144: * JobLocalInput --
1145: * Handle a pipe becoming readable. Callback function for Rmt_Watch
1146: *
1147: * Results:
1148: * None
1149: *
1150: * Side Effects:
1151: * JobDoOutput is called.
1.6 millert 1152: *
1.1 deraadt 1153: *-----------------------------------------------------------------------
1154: */
1155: /*ARGSUSED*/
1156: static void
1157: JobLocalInput(stream, job)
1.6 millert 1158: int stream; /* Stream that's ready (ignored) */
1.1 deraadt 1159: Job *job; /* Job to which the stream belongs */
1160: {
1161: JobDoOutput(job, FALSE);
1162: }
1163: #endif /* RMT_WILL_WATCH */
1164:
1165: /*-
1166: *-----------------------------------------------------------------------
1167: * JobExec --
1168: * Execute the shell for the given job. Called from JobStart and
1169: * JobRestart.
1170: *
1171: * Results:
1172: * None.
1173: *
1174: * Side Effects:
1175: * A shell is executed, outputs is altered and the Job structure added
1176: * to the job table.
1177: *
1178: *-----------------------------------------------------------------------
1179: */
1180: static void
1181: JobExec(job, argv)
1182: Job *job; /* Job to execute */
1183: char **argv;
1184: {
1185: int cpid; /* ID of new child */
1.6 millert 1186:
1.1 deraadt 1187: if (DEBUG(JOB)) {
1188: int i;
1.6 millert 1189:
1.2 deraadt 1190: (void) fprintf(stdout, "Running %s %sly\n", job->node->name,
1191: job->flags&JOB_REMOTE?"remote":"local");
1192: (void) fprintf(stdout, "\tCommand: ");
1193: for (i = 0; argv[i] != NULL; i++) {
1194: (void) fprintf(stdout, "%s ", argv[i]);
1.1 deraadt 1195: }
1.2 deraadt 1196: (void) fprintf(stdout, "\n");
1197: (void) fflush(stdout);
1.1 deraadt 1198: }
1.6 millert 1199:
1.1 deraadt 1200: /*
1201: * Some jobs produce no output and it's disconcerting to have
1.6 millert 1202: * no feedback of their running (since they produce no output, the
1.1 deraadt 1203: * banner with their name in it never appears). This is an attempt to
1204: * provide that feedback, even if nothing follows it.
1205: */
1206: if ((lastNode != job->node) && (job->flags & JOB_FIRST) &&
1.2 deraadt 1207: !(job->flags & JOB_SILENT)) {
1208: MESSAGE(stdout, job->node);
1.1 deraadt 1209: lastNode = job->node;
1210: }
1.6 millert 1211:
1.1 deraadt 1212: #ifdef RMT_NO_EXEC
1213: if (job->flags & JOB_REMOTE) {
1214: goto jobExecFinish;
1215: }
1216: #endif /* RMT_NO_EXEC */
1217:
1.2 deraadt 1218: if ((cpid = vfork()) == -1) {
1219: Punt("Cannot fork");
1.1 deraadt 1220: } else if (cpid == 0) {
1221:
1222: /*
1223: * Must duplicate the input stream down to the child's input and
1.6 millert 1224: * reset it to the beginning (again). Since the stream was marked
1.1 deraadt 1225: * close-on-exec, we must clear that bit in the new input.
1226: */
1.2 deraadt 1227: if (dup2(FILENO(job->cmdFILE), 0) == -1)
1228: Punt("Cannot dup2: %s", strerror(errno));
1229: (void) fcntl(0, F_SETFD, 0);
1.11 millert 1230: (void) lseek(0, 0, SEEK_SET);
1.6 millert 1231:
1.1 deraadt 1232: if (usePipes) {
1233: /*
1234: * Set up the child's output to be routed through the pipe
1235: * we've created for it.
1236: */
1.2 deraadt 1237: if (dup2(job->outPipe, 1) == -1)
1238: Punt("Cannot dup2: %s", strerror(errno));
1.1 deraadt 1239: } else {
1240: /*
1241: * We're capturing output in a file, so we duplicate the
1242: * descriptor to the temporary file into the standard
1243: * output.
1244: */
1.2 deraadt 1245: if (dup2(job->outFd, 1) == -1)
1246: Punt("Cannot dup2: %s", strerror(errno));
1.1 deraadt 1247: }
1248: /*
1249: * The output channels are marked close on exec. This bit was
1.6 millert 1250: * duplicated by the dup2 (on some systems), so we have to clear
1.1 deraadt 1251: * it before routing the shell's error output to the same place as
1252: * its standard output.
1253: */
1.2 deraadt 1254: (void) fcntl(1, F_SETFD, 0);
1255: if (dup2(1, 2) == -1)
1256: Punt("Cannot dup2: %s", strerror(errno));
1.1 deraadt 1257:
1258: #ifdef USE_PGRP
1259: /*
1260: * We want to switch the child into a different process family so
1261: * we can kill it and all its descendants in one fell swoop,
1262: * by killing its process family, but not commit suicide.
1263: */
1.2 deraadt 1264: # if defined(SYSV)
1265: (void) setsid();
1266: # else
1267: (void) setpgid(0, getpid());
1268: # endif
1269: #endif /* USE_PGRP */
1.1 deraadt 1270:
1.2 deraadt 1271: #ifdef REMOTE
1272: if (job->flags & JOB_REMOTE) {
1273: Rmt_Exec(shellPath, argv, FALSE);
1.6 millert 1274: } else
1.2 deraadt 1275: #endif /* REMOTE */
1276: (void) execv(shellPath, argv);
1277:
1278: (void) write(2, "Could not execute shell\n",
1279: sizeof("Could not execute shell"));
1280: _exit(1);
1.1 deraadt 1281: } else {
1.2 deraadt 1282: #ifdef REMOTE
1.8 deraadt 1283: int omask = sigblock(sigmask(SIGCHLD));
1.2 deraadt 1284: #endif
1.1 deraadt 1285: job->pid = cpid;
1286:
1287: if (usePipes && (job->flags & JOB_FIRST) ) {
1288: /*
1289: * The first time a job is run for a node, we set the current
1290: * position in the buffer to the beginning and mark another
1291: * stream to watch in the outputs mask
1292: */
1293: job->curPos = 0;
1.6 millert 1294:
1.1 deraadt 1295: #ifdef RMT_WILL_WATCH
1296: Rmt_Watch(job->inPipe, JobLocalInput, job);
1297: #else
1.8 deraadt 1298: if (outputsp == NULL || job->inPipe > outputsn) {
1299: int bytes = howmany(job->inPipe+1, NFDBITS) * sizeof(fd_mask);
1300: int obytes = howmany(outputsn+1, NFDBITS) * sizeof(fd_mask);
1301:
1.9 flipk 1302: if (outputsp == NULL || obytes != bytes) {
1.8 deraadt 1303: outputsp = realloc(outputsp, bytes);
1304: if (outputsp == NULL)
1305: return;
1306: memset(outputsp + obytes, 0, bytes - obytes);
1307: }
1308: outputsn = job->inPipe;
1309: }
1310: FD_SET(job->inPipe, outputsp);
1.1 deraadt 1311: #endif /* RMT_WILL_WATCH */
1312: }
1313:
1314: if (job->flags & JOB_REMOTE) {
1.2 deraadt 1315: #ifndef REMOTE
1.1 deraadt 1316: job->rmtID = 0;
1.2 deraadt 1317: #else
1318: job->rmtID = Rmt_LastID(job->pid);
1319: #endif /* REMOTE */
1.1 deraadt 1320: } else {
1321: nLocal += 1;
1322: /*
1.2 deraadt 1323: * XXX: Used to not happen if REMOTE. Why?
1.1 deraadt 1324: */
1.2 deraadt 1325: if (job->cmdFILE != NULL && job->cmdFILE != stdout) {
1326: (void) fclose(job->cmdFILE);
1.1 deraadt 1327: job->cmdFILE = NULL;
1328: }
1329: }
1.2 deraadt 1330: #ifdef REMOTE
1331: (void) sigsetmask(omask);
1332: #endif
1.1 deraadt 1333: }
1334:
1335: #ifdef RMT_NO_EXEC
1.6 millert 1336: jobExecFinish:
1.1 deraadt 1337: #endif
1338: /*
1339: * Now the job is actually running, add it to the table.
1340: */
1341: nJobs += 1;
1.20 espie 1342: Lst_AtEnd(jobs, (ClientData)job);
1.1 deraadt 1343: if (nJobs == maxJobs) {
1344: jobFull = TRUE;
1345: }
1346: }
1347:
1348: /*-
1349: *-----------------------------------------------------------------------
1350: * JobMakeArgv --
1351: * Create the argv needed to execute the shell for a given job.
1.6 millert 1352: *
1.1 deraadt 1353: *
1354: * Results:
1355: *
1356: * Side Effects:
1357: *
1358: *-----------------------------------------------------------------------
1359: */
1360: static void
1361: JobMakeArgv(job, argv)
1362: Job *job;
1363: char **argv;
1364: {
1365: int argc;
1366: static char args[10]; /* For merged arguments */
1.6 millert 1367:
1.1 deraadt 1368: argv[0] = shellName;
1369: argc = 1;
1370:
1371: if ((commandShell->exit && (*commandShell->exit != '-')) ||
1372: (commandShell->echo && (*commandShell->echo != '-')))
1373: {
1374: /*
1375: * At least one of the flags doesn't have a minus before it, so
1376: * merge them together. Have to do this because the *(&(@*#*&#$#
1377: * Bourne shell thinks its second argument is a file to source.
1378: * Grrrr. Note the ten-character limitation on the combined arguments.
1379: */
1380: (void)sprintf(args, "-%s%s",
1381: ((job->flags & JOB_IGNERR) ? "" :
1382: (commandShell->exit ? commandShell->exit : "")),
1383: ((job->flags & JOB_SILENT) ? "" :
1384: (commandShell->echo ? commandShell->echo : "")));
1385:
1386: if (args[1]) {
1387: argv[argc] = args;
1388: argc++;
1389: }
1390: } else {
1391: if (!(job->flags & JOB_IGNERR) && commandShell->exit) {
1392: argv[argc] = commandShell->exit;
1393: argc++;
1394: }
1395: if (!(job->flags & JOB_SILENT) && commandShell->echo) {
1396: argv[argc] = commandShell->echo;
1397: argc++;
1398: }
1399: }
1.2 deraadt 1400: argv[argc] = NULL;
1.1 deraadt 1401: }
1402:
1403: /*-
1404: *-----------------------------------------------------------------------
1405: * JobRestart --
1.6 millert 1406: * Restart a job that stopped for some reason.
1.1 deraadt 1407: *
1408: * Results:
1409: * None.
1410: *
1411: * Side Effects:
1412: * jobFull will be set if the job couldn't be run.
1413: *
1414: *-----------------------------------------------------------------------
1415: */
1416: static void
1417: JobRestart(job)
1418: Job *job; /* Job to restart */
1419: {
1.2 deraadt 1420: #ifdef REMOTE
1421: int host;
1422: #endif
1.6 millert 1423:
1.1 deraadt 1424: if (job->flags & JOB_REMIGRATE) {
1.2 deraadt 1425: if (
1426: #ifdef REMOTE
1427: verboseRemigrates ||
1428: #endif
1429: DEBUG(JOB)) {
1430: (void) fprintf(stdout, "*** remigrating %x(%s)\n",
1431: job->pid, job->node->name);
1432: (void) fflush(stdout);
1.1 deraadt 1433: }
1.2 deraadt 1434:
1435: #ifdef REMOTE
1436: if (!Rmt_ReExport(job->pid, job->node, &host)) {
1437: if (verboseRemigrates || DEBUG(JOB)) {
1438: (void) fprintf(stdout, "*** couldn't migrate...\n");
1439: (void) fflush(stdout);
1440: }
1441: #endif
1442: if (nLocal != maxLocal) {
1.1 deraadt 1443: /*
1444: * Job cannot be remigrated, but there's room on the local
1445: * machine, so resume the job and note that another
1446: * local job has started.
1447: */
1.2 deraadt 1448: if (
1449: #ifdef REMOTE
1450: verboseRemigrates ||
1451: #endif
1452: DEBUG(JOB)) {
1453: (void) fprintf(stdout, "*** resuming on local machine\n");
1454: (void) fflush(stdout);
1455: }
1.1 deraadt 1456: KILL(job->pid, SIGCONT);
1457: nLocal +=1;
1.2 deraadt 1458: #ifdef REMOTE
1459: job->flags &= ~(JOB_REMIGRATE|JOB_RESUME|JOB_REMOTE);
1460: job->flags |= JOB_CONTINUING;
1461: #else
1.1 deraadt 1462: job->flags &= ~(JOB_REMIGRATE|JOB_RESUME);
1.2 deraadt 1463: #endif
1.1 deraadt 1464: } else {
1465: /*
1466: * Job cannot be restarted. Mark the table as full and
1467: * place the job back on the list of stopped jobs.
1468: */
1.2 deraadt 1469: if (
1470: #ifdef REMOTE
1471: verboseRemigrates ||
1472: #endif
1473: DEBUG(JOB)) {
1474: (void) fprintf(stdout, "*** holding\n");
1475: (void) fflush(stdout);
1476: }
1.20 espie 1477: Lst_AtFront(stoppedJobs, (ClientData)job);
1.1 deraadt 1478: jobFull = TRUE;
1479: if (DEBUG(JOB)) {
1.2 deraadt 1480: (void) fprintf(stdout, "Job queue is full.\n");
1481: (void) fflush(stdout);
1.1 deraadt 1482: }
1483: return;
1.2 deraadt 1484: }
1485: #ifdef REMOTE
1486: } else {
1487: /*
1488: * Clear out the remigrate and resume flags. Set the continuing
1489: * flag so we know later on that the process isn't exiting just
1490: * because of a signal.
1491: */
1492: job->flags &= ~(JOB_REMIGRATE|JOB_RESUME);
1493: job->flags |= JOB_CONTINUING;
1494: job->rmtID = host;
1.1 deraadt 1495: }
1.2 deraadt 1496: #endif
1.6 millert 1497:
1.20 espie 1498: Lst_AtEnd(jobs, (ClientData)job);
1.1 deraadt 1499: nJobs += 1;
1500: if (nJobs == maxJobs) {
1501: jobFull = TRUE;
1502: if (DEBUG(JOB)) {
1.2 deraadt 1503: (void) fprintf(stdout, "Job queue is full.\n");
1504: (void) fflush(stdout);
1.1 deraadt 1505: }
1506: }
1507: } else if (job->flags & JOB_RESTART) {
1508: /*
1509: * Set up the control arguments to the shell. This is based on the
1510: * flags set earlier for this job. If the JOB_IGNERR flag is clear,
1511: * the 'exit' flag of the commandShell is used to cause it to exit
1512: * upon receiving an error. If the JOB_SILENT flag is clear, the
1513: * 'echo' flag of the commandShell is used to get it to start echoing
1.6 millert 1514: * as soon as it starts processing commands.
1.1 deraadt 1515: */
1516: char *argv[4];
1.6 millert 1517:
1.1 deraadt 1518: JobMakeArgv(job, argv);
1.2 deraadt 1519:
1.1 deraadt 1520: if (DEBUG(JOB)) {
1.2 deraadt 1521: (void) fprintf(stdout, "Restarting %s...", job->node->name);
1522: (void) fflush(stdout);
1.1 deraadt 1523: }
1.2 deraadt 1524: #ifdef REMOTE
1525: if ((job->node->type&OP_NOEXPORT) ||
1.6 millert 1526: (nLocal < maxLocal && runLocalFirst)
1.2 deraadt 1527: # ifdef RMT_NO_EXEC
1528: || !Rmt_Export(shellPath, argv, job)
1529: # else
1530: || !Rmt_Begin(shellPath, argv, job->node)
1531: # endif
1532: #endif
1533: {
1534: if (((nLocal >= maxLocal) && !(job->flags & JOB_SPECIAL))) {
1.1 deraadt 1535: /*
1536: * Can't be exported and not allowed to run locally -- put it
1537: * back on the hold queue and mark the table full
1538: */
1539: if (DEBUG(JOB)) {
1.2 deraadt 1540: (void) fprintf(stdout, "holding\n");
1541: (void) fflush(stdout);
1.1 deraadt 1542: }
1.20 espie 1543: Lst_AtFront(stoppedJobs, (ClientData)job);
1.1 deraadt 1544: jobFull = TRUE;
1545: if (DEBUG(JOB)) {
1.2 deraadt 1546: (void) fprintf(stdout, "Job queue is full.\n");
1547: (void) fflush(stdout);
1.1 deraadt 1548: }
1549: return;
1.2 deraadt 1550: } else {
1.1 deraadt 1551: /*
1552: * Job may be run locally.
1553: */
1554: if (DEBUG(JOB)) {
1.2 deraadt 1555: (void) fprintf(stdout, "running locally\n");
1556: (void) fflush(stdout);
1.1 deraadt 1557: }
1558: job->flags &= ~JOB_REMOTE;
1.2 deraadt 1559: }
1560: }
1561: #ifdef REMOTE
1562: else {
1563: /*
1564: * Can be exported. Hooray!
1565: */
1566: if (DEBUG(JOB)) {
1567: (void) fprintf(stdout, "exporting\n");
1568: (void) fflush(stdout);
1569: }
1570: job->flags |= JOB_REMOTE;
1.1 deraadt 1571: }
1.2 deraadt 1572: #endif
1.1 deraadt 1573: JobExec(job, argv);
1574: } else {
1575: /*
1576: * The job has stopped and needs to be restarted. Why it stopped,
1577: * we don't know...
1578: */
1579: if (DEBUG(JOB)) {
1.2 deraadt 1580: (void) fprintf(stdout, "Resuming %s...", job->node->name);
1581: (void) fflush(stdout);
1.1 deraadt 1582: }
1583: if (((job->flags & JOB_REMOTE) ||
1.2 deraadt 1584: (nLocal < maxLocal) ||
1585: #ifdef REMOTE
1586: (((job->flags & JOB_SPECIAL) &&
1587: (job->node->type & OP_NOEXPORT)) &&
1588: (maxLocal == 0))) &&
1589: #else
1590: ((job->flags & JOB_SPECIAL) &&
1591: (maxLocal == 0))) &&
1592: #endif
1593: (nJobs != maxJobs))
1.1 deraadt 1594: {
1595: /*
1596: * If the job is remote, it's ok to resume it as long as the
1597: * maximum concurrency won't be exceeded. If it's local and
1.6 millert 1598: * we haven't reached the local concurrency limit already (or the
1.1 deraadt 1599: * job must be run locally and maxLocal is 0), it's also ok to
1600: * resume it.
1601: */
1602: Boolean error;
1603: extern int errno;
1.2 deraadt 1604: int status;
1.6 millert 1605:
1.1 deraadt 1606: #ifdef RMT_WANTS_SIGNALS
1607: if (job->flags & JOB_REMOTE) {
1608: error = !Rmt_Signal(job, SIGCONT);
1609: } else
1610: #endif /* RMT_WANTS_SIGNALS */
1611: error = (KILL(job->pid, SIGCONT) != 0);
1612:
1613: if (!error) {
1614: /*
1615: * Make sure the user knows we've continued the beast and
1616: * actually put the thing in the job table.
1617: */
1618: job->flags |= JOB_CONTINUING;
1.2 deraadt 1619: W_SETTERMSIG(&status, SIGCONT);
1620: JobFinish(job, &status);
1.6 millert 1621:
1.1 deraadt 1622: job->flags &= ~(JOB_RESUME|JOB_CONTINUING);
1623: if (DEBUG(JOB)) {
1.2 deraadt 1624: (void) fprintf(stdout, "done\n");
1625: (void) fflush(stdout);
1.1 deraadt 1626: }
1627: } else {
1628: Error("couldn't resume %s: %s",
1629: job->node->name, strerror(errno));
1.2 deraadt 1630: status = 0;
1631: W_SETEXITSTATUS(&status, 1);
1632: JobFinish(job, &status);
1.1 deraadt 1633: }
1634: } else {
1635: /*
1636: * Job cannot be restarted. Mark the table as full and
1637: * place the job back on the list of stopped jobs.
1638: */
1639: if (DEBUG(JOB)) {
1.2 deraadt 1640: (void) fprintf(stdout, "table full\n");
1641: (void) fflush(stdout);
1.1 deraadt 1642: }
1.20 espie 1643: Lst_AtFront(stoppedJobs, (ClientData)job);
1.1 deraadt 1644: jobFull = TRUE;
1645: if (DEBUG(JOB)) {
1.2 deraadt 1646: (void) fprintf(stdout, "Job queue is full.\n");
1647: (void) fflush(stdout);
1.1 deraadt 1648: }
1649: }
1650: }
1651: }
1652:
1653: /*-
1654: *-----------------------------------------------------------------------
1655: * JobStart --
1656: * Start a target-creation process going for the target described
1.6 millert 1657: * by the graph node gn.
1.1 deraadt 1658: *
1659: * Results:
1660: * JOB_ERROR if there was an error in the commands, JOB_FINISHED
1661: * if there isn't actually anything left to do for the job and
1662: * JOB_RUNNING if the job has been started.
1663: *
1664: * Side Effects:
1665: * A new Job node is created and added to the list of running
1666: * jobs. PMake is forked and a child shell created.
1667: *-----------------------------------------------------------------------
1668: */
1669: static int
1.2 deraadt 1670: JobStart(gn, flags, previous)
1.1 deraadt 1671: GNode *gn; /* target to create */
1672: int flags; /* flags for the job to override normal ones.
1673: * e.g. JOB_SPECIAL or JOB_IGNDOTS */
1674: Job *previous; /* The previous Job structure for this node,
1675: * if any. */
1676: {
1677: register Job *job; /* new job descriptor */
1678: char *argv[4]; /* Argument vector to shell */
1679: Boolean cmdsOK; /* true if the nodes commands were all right */
1680: Boolean local; /* Set true if the job was run locally */
1681: Boolean noExec; /* Set true if we decide not to run the job */
1682:
1.2 deraadt 1683: if (previous != NULL) {
1684: previous->flags &= ~(JOB_FIRST|JOB_IGNERR|JOB_SILENT|JOB_REMOTE);
1.1 deraadt 1685: job = previous;
1686: } else {
1.2 deraadt 1687: job = (Job *) emalloc(sizeof(Job));
1688: if (job == NULL) {
1.1 deraadt 1689: Punt("JobStart out of memory");
1690: }
1691: flags |= JOB_FIRST;
1692: }
1693:
1694: job->node = gn;
1.18 espie 1695: job->tailCmds = NULL;
1.1 deraadt 1696:
1697: /*
1698: * Set the initial value of the flags for this job based on the global
1699: * ones and the node's attributes... Any flags supplied by the caller
1700: * are also added to the field.
1701: */
1702: job->flags = 0;
1.2 deraadt 1703: if (Targ_Ignore(gn)) {
1.1 deraadt 1704: job->flags |= JOB_IGNERR;
1705: }
1.2 deraadt 1706: if (Targ_Silent(gn)) {
1.1 deraadt 1707: job->flags |= JOB_SILENT;
1708: }
1709: job->flags |= flags;
1710:
1711: /*
1712: * Check the commands now so any attributes from .DEFAULT have a chance
1713: * to migrate to the node
1714: */
1.2 deraadt 1715: if (!compatMake && job->flags & JOB_FIRST) {
1.1 deraadt 1716: cmdsOK = Job_CheckCommands(gn, Error);
1717: } else {
1718: cmdsOK = TRUE;
1719: }
1.6 millert 1720:
1.1 deraadt 1721: /*
1.6 millert 1722: * If the -n flag wasn't given, we open up OUR (not the child's)
1.1 deraadt 1723: * temporary file to stuff commands in it. The thing is rd/wr so we don't
1724: * need to reopen it to feed it to the shell. If the -n flag *was* given,
1725: * we just set the file to be stdout. Cute, huh?
1726: */
1727: if ((gn->type & OP_MAKE) || (!noExecute && !touchFlag)) {
1728: /*
1729: * We're serious here, but if the commands were bogus, we're
1730: * also dead...
1731: */
1732: if (!cmdsOK) {
1733: DieHorribly();
1734: }
1.6 millert 1735:
1.2 deraadt 1736: job->cmdFILE = fopen(tfile, "w+");
1737: if (job->cmdFILE == NULL) {
1738: Punt("Could not open %s", tfile);
1.1 deraadt 1739: }
1.2 deraadt 1740: (void) fcntl(FILENO(job->cmdFILE), F_SETFD, 1);
1.1 deraadt 1741: /*
1742: * Send the commands to the command file, flush all its buffers then
1743: * rewind and remove the thing.
1744: */
1745: noExec = FALSE;
1746:
1747: /*
1748: * used to be backwards; replace when start doing multiple commands
1749: * per shell.
1750: */
1751: if (compatMake) {
1752: /*
1753: * Be compatible: If this is the first time for this node,
1754: * verify its commands are ok and open the commands list for
1755: * sequential access by later invocations of JobStart.
1756: * Once that is done, we take the next command off the list
1757: * and print it to the command file. If the command was an
1758: * ellipsis, note that there's nothing more to execute.
1759: */
1760: if ((job->flags&JOB_FIRST) && (Lst_Open(gn->commands) != SUCCESS)){
1761: cmdsOK = FALSE;
1762: } else {
1.2 deraadt 1763: LstNode ln = Lst_Next(gn->commands);
1.6 millert 1764:
1.18 espie 1765: if ((ln == NULL) ||
1.2 deraadt 1766: JobPrintCommand((ClientData) Lst_Datum(ln),
1767: (ClientData) job))
1.1 deraadt 1768: {
1769: noExec = TRUE;
1.2 deraadt 1770: Lst_Close(gn->commands);
1.1 deraadt 1771: }
1772: if (noExec && !(job->flags & JOB_FIRST)) {
1773: /*
1774: * If we're not going to execute anything, the job
1775: * is done and we need to close down the various
1776: * file descriptors we've opened for output, then
1777: * call JobDoOutput to catch the final characters or
1778: * send the file to the screen... Note that the i/o streams
1779: * are only open if this isn't the first job.
1780: * Note also that this could not be done in
1781: * Job_CatchChildren b/c it wasn't clear if there were
1782: * more commands to execute or not...
1783: */
1.2 deraadt 1784: JobClose(job);
1.1 deraadt 1785: }
1786: }
1787: } else {
1788: /*
1789: * We can do all the commands at once. hooray for sanity
1790: */
1791: numCommands = 0;
1.2 deraadt 1792: Lst_ForEach(gn->commands, JobPrintCommand, (ClientData)job);
1.6 millert 1793:
1.1 deraadt 1794: /*
1795: * If we didn't print out any commands to the shell script,
1796: * there's not much point in executing the shell, is there?
1797: */
1798: if (numCommands == 0) {
1799: noExec = TRUE;
1800: }
1801: }
1802: } else if (noExecute) {
1803: /*
1804: * Not executing anything -- just print all the commands to stdout
1805: * in one fell swoop. This will still set up job->tailCmds correctly.
1806: */
1807: if (lastNode != gn) {
1.2 deraadt 1808: MESSAGE(stdout, gn);
1.1 deraadt 1809: lastNode = gn;
1810: }
1811: job->cmdFILE = stdout;
1812: /*
1813: * Only print the commands if they're ok, but don't die if they're
1814: * not -- just let the user know they're bad and keep going. It
1815: * doesn't do any harm in this case and may do some good.
1816: */
1817: if (cmdsOK) {
1818: Lst_ForEach(gn->commands, JobPrintCommand, (ClientData)job);
1819: }
1820: /*
1821: * Don't execute the shell, thank you.
1822: */
1823: noExec = TRUE;
1824: } else {
1825: /*
1826: * Just touch the target and note that no shell should be executed.
1827: * Set cmdFILE to stdout to make life easier. Check the commands, too,
1828: * but don't die if they're no good -- it does no harm to keep working
1829: * up the graph.
1830: */
1831: job->cmdFILE = stdout;
1.2 deraadt 1832: Job_Touch(gn, job->flags&JOB_SILENT);
1.1 deraadt 1833: noExec = TRUE;
1834: }
1835:
1836: /*
1.6 millert 1837: * If we're not supposed to execute a shell, don't.
1.1 deraadt 1838: */
1839: if (noExec) {
1840: /*
1841: * Unlink and close the command file if we opened one
1842: */
1843: if (job->cmdFILE != stdout) {
1.2 deraadt 1844: (void) eunlink(tfile);
1845: if (job->cmdFILE != NULL)
1846: (void) fclose(job->cmdFILE);
1.1 deraadt 1847: } else {
1.2 deraadt 1848: (void) fflush(stdout);
1.1 deraadt 1849: }
1850:
1851: /*
1852: * We only want to work our way up the graph if we aren't here because
1853: * the commands for the job were no good.
1854: */
1855: if (cmdsOK) {
1856: if (aborting == 0) {
1.18 espie 1857: if (job->tailCmds != NULL) {
1.1 deraadt 1858: Lst_ForEachFrom(job->node->commands, job->tailCmds,
1859: JobSaveCommand,
1.2 deraadt 1860: (ClientData)job->node);
1.1 deraadt 1861: }
1862: Make_Update(job->node);
1863: }
1864: free((Address)job);
1865: return(JOB_FINISHED);
1866: } else {
1867: free((Address)job);
1868: return(JOB_ERROR);
1869: }
1870: } else {
1.2 deraadt 1871: (void) fflush(job->cmdFILE);
1872: (void) eunlink(tfile);
1.1 deraadt 1873: }
1874:
1875: /*
1876: * Set up the control arguments to the shell. This is based on the flags
1877: * set earlier for this job.
1878: */
1879: JobMakeArgv(job, argv);
1880:
1881: /*
1882: * If we're using pipes to catch output, create the pipe by which we'll
1883: * get the shell's output. If we're using files, print out that we're
1.7 millert 1884: * starting a job and then set up its temporary-file name.
1.1 deraadt 1885: */
1.2 deraadt 1886: if (!compatMake || (job->flags & JOB_FIRST)) {
1.1 deraadt 1887: if (usePipes) {
1888: int fd[2];
1.2 deraadt 1889: if (pipe(fd) == -1)
1890: Punt("Cannot create pipe: %s", strerror(errno));
1.1 deraadt 1891: job->inPipe = fd[0];
1892: job->outPipe = fd[1];
1.2 deraadt 1893: (void) fcntl(job->inPipe, F_SETFD, 1);
1894: (void) fcntl(job->outPipe, F_SETFD, 1);
1.1 deraadt 1895: } else {
1.2 deraadt 1896: (void) fprintf(stdout, "Remaking `%s'\n", gn->name);
1897: (void) fflush(stdout);
1.7 millert 1898: (void) strcpy(job->outFile, TMPPAT);
1899: if ((job->outFd = mkstemp(job->outFile)) == -1)
1900: Punt("Cannot create temp file: %s", strerror(errno));
1.2 deraadt 1901: (void) fcntl(job->outFd, F_SETFD, 1);
1.1 deraadt 1902: }
1903: }
1904:
1.2 deraadt 1905: #ifdef REMOTE
1906: if (!(gn->type & OP_NOEXPORT) && !(runLocalFirst && nLocal < maxLocal)) {
1907: #ifdef RMT_NO_EXEC
1908: local = !Rmt_Export(shellPath, argv, job);
1909: #else
1910: local = !Rmt_Begin(shellPath, argv, job->node);
1911: #endif /* RMT_NO_EXEC */
1912: if (!local) {
1913: job->flags |= JOB_REMOTE;
1914: }
1915: } else
1916: #endif
1917: local = TRUE;
1.1 deraadt 1918:
1919: if (local && (((nLocal >= maxLocal) &&
1.2 deraadt 1920: !(job->flags & JOB_SPECIAL) &&
1921: #ifdef REMOTE
1922: (!(gn->type & OP_NOEXPORT) || (maxLocal != 0))
1923: #else
1924: (maxLocal != 0)
1925: #endif
1926: )))
1.1 deraadt 1927: {
1928: /*
1929: * The job can only be run locally, but we've hit the limit of
1930: * local concurrency, so put the job on hold until some other job
1.6 millert 1931: * finishes. Note that the special jobs (.BEGIN, .INTERRUPT and .END)
1.1 deraadt 1932: * may be run locally even when the local limit has been reached
1.6 millert 1933: * (e.g. when maxLocal == 0), though they will be exported if at
1.2 deraadt 1934: * all possible. In addition, any target marked with .NOEXPORT will
1935: * be run locally if maxLocal is 0.
1.1 deraadt 1936: */
1937: jobFull = TRUE;
1.6 millert 1938:
1.1 deraadt 1939: if (DEBUG(JOB)) {
1.2 deraadt 1940: (void) fprintf(stdout, "Can only run job locally.\n");
1941: (void) fflush(stdout);
1.1 deraadt 1942: }
1943: job->flags |= JOB_RESTART;
1.20 espie 1944: Lst_AtEnd(stoppedJobs, (ClientData)job);
1.1 deraadt 1945: } else {
1946: if ((nLocal >= maxLocal) && local) {
1947: /*
1.6 millert 1948: * If we're running this job locally as a special case (see above),
1.1 deraadt 1949: * at least say the table is full.
1950: */
1951: jobFull = TRUE;
1952: if (DEBUG(JOB)) {
1.2 deraadt 1953: (void) fprintf(stdout, "Local job queue is full.\n");
1954: (void) fflush(stdout);
1.1 deraadt 1955: }
1956: }
1957: JobExec(job, argv);
1958: }
1959: return(JOB_RUNNING);
1960: }
1961:
1.6 millert 1962: static char *
1.2 deraadt 1963: JobOutput(job, cp, endp, msg)
1964: register Job *job;
1965: register char *cp, *endp;
1966: int msg;
1967: {
1968: register char *ecp;
1969:
1970: if (commandShell->noPrint) {
1.14 espie 1971: ecp = strstr(cp, commandShell->noPrint);
1.2 deraadt 1972: while (ecp != NULL) {
1973: if (cp != ecp) {
1974: *ecp = '\0';
1975: if (msg && job->node != lastNode) {
1976: MESSAGE(stdout, job->node);
1977: lastNode = job->node;
1978: }
1979: /*
1980: * The only way there wouldn't be a newline after
1981: * this line is if it were the last in the buffer.
1982: * however, since the non-printable comes after it,
1983: * there must be a newline, so we don't print one.
1984: */
1985: (void) fprintf(stdout, "%s", cp);
1986: (void) fflush(stdout);
1987: }
1988: cp = ecp + commandShell->noPLen;
1989: if (cp != endp) {
1990: /*
1991: * Still more to print, look again after skipping
1992: * the whitespace following the non-printable
1993: * command....
1994: */
1995: cp++;
1996: while (*cp == ' ' || *cp == '\t' || *cp == '\n') {
1997: cp++;
1998: }
1.14 espie 1999: ecp = strstr(cp, commandShell->noPrint);
1.2 deraadt 2000: } else {
2001: return cp;
2002: }
2003: }
2004: }
2005: return cp;
2006: }
2007:
1.1 deraadt 2008: /*-
2009: *-----------------------------------------------------------------------
2010: * JobDoOutput --
2011: * This function is called at different times depending on
2012: * whether the user has specified that output is to be collected
2013: * via pipes or temporary files. In the former case, we are called
2014: * whenever there is something to read on the pipe. We collect more
2015: * output from the given job and store it in the job's outBuf. If
2016: * this makes up a line, we print it tagged by the job's identifier,
2017: * as necessary.
2018: * If output has been collected in a temporary file, we open the
2019: * file and read it line by line, transfering it to our own
2020: * output channel until the file is empty. At which point we
2021: * remove the temporary file.
2022: * In both cases, however, we keep our figurative eye out for the
2023: * 'noPrint' line for the shell from which the output came. If
2024: * we recognize a line, we don't print it. If the command is not
1.6 millert 2025: * alone on the line (the character after it is not \0 or \n), we
1.1 deraadt 2026: * do print whatever follows it.
2027: *
2028: * Results:
2029: * None
2030: *
2031: * Side Effects:
2032: * curPos may be shifted as may the contents of outBuf.
2033: *-----------------------------------------------------------------------
2034: */
1.2 deraadt 2035: STATIC void
2036: JobDoOutput(job, finish)
1.1 deraadt 2037: register Job *job; /* the job whose output needs printing */
2038: Boolean finish; /* TRUE if this is the last time we'll be
2039: * called for this job */
2040: {
2041: Boolean gotNL = FALSE; /* true if got a newline */
1.2 deraadt 2042: Boolean fbuf; /* true if our buffer filled up */
1.1 deraadt 2043: register int nr; /* number of bytes read */
2044: register int i; /* auxiliary index into outBuf */
1.6 millert 2045: register int max; /* limit for i (end of current data) */
2046: int nRead; /* (Temporary) number of bytes read */
1.1 deraadt 2047:
2048: FILE *oFILE; /* Stream pointer to shell's output file */
2049: char inLine[132];
2050:
1.6 millert 2051:
1.1 deraadt 2052: if (usePipes) {
2053: /*
2054: * Read as many bytes as will fit in the buffer.
2055: */
2056: end_loop:
1.2 deraadt 2057: gotNL = FALSE;
2058: fbuf = FALSE;
1.6 millert 2059:
1.2 deraadt 2060: nRead = read(job->inPipe, &job->outBuf[job->curPos],
1.1 deraadt 2061: JOB_BUFSIZE - job->curPos);
2062: if (nRead < 0) {
2063: if (DEBUG(JOB)) {
2064: perror("JobDoOutput(piperead)");
2065: }
2066: nr = 0;
2067: } else {
2068: nr = nRead;
2069: }
2070:
2071: /*
1.6 millert 2072: * If we hit the end-of-file (the job is dead), we must flush its
1.1 deraadt 2073: * remaining output, so pretend we read a newline if there's any
2074: * output remaining in the buffer.
2075: * Also clear the 'finish' flag so we stop looping.
2076: */
2077: if ((nr == 0) && (job->curPos != 0)) {
2078: job->outBuf[job->curPos] = '\n';
2079: nr = 1;
2080: finish = FALSE;
2081: } else if (nr == 0) {
2082: finish = FALSE;
2083: }
1.6 millert 2084:
1.1 deraadt 2085: /*
2086: * Look for the last newline in the bytes we just got. If there is
2087: * one, break out of the loop with 'i' as its index and gotNL set
1.6 millert 2088: * TRUE.
1.1 deraadt 2089: */
2090: max = job->curPos + nr;
2091: for (i = job->curPos + nr - 1; i >= job->curPos; i--) {
2092: if (job->outBuf[i] == '\n') {
2093: gotNL = TRUE;
2094: break;
2095: } else if (job->outBuf[i] == '\0') {
2096: /*
2097: * Why?
2098: */
2099: job->outBuf[i] = ' ';
2100: }
2101: }
1.6 millert 2102:
1.1 deraadt 2103: if (!gotNL) {
2104: job->curPos += nr;
2105: if (job->curPos == JOB_BUFSIZE) {
2106: /*
2107: * If we've run out of buffer space, we have no choice
1.6 millert 2108: * but to print the stuff. sigh.
1.1 deraadt 2109: */
1.2 deraadt 2110: fbuf = TRUE;
1.1 deraadt 2111: i = job->curPos;
2112: }
2113: }
1.2 deraadt 2114: if (gotNL || fbuf) {
1.1 deraadt 2115: /*
2116: * Need to send the output to the screen. Null terminate it
2117: * first, overwriting the newline character if there was one.
1.6 millert 2118: * So long as the line isn't one we should filter (according
1.1 deraadt 2119: * to the shell description), we print the line, preceeded
2120: * by a target banner if this target isn't the same as the
2121: * one for which we last printed something.
2122: * The rest of the data in the buffer are then shifted down
1.6 millert 2123: * to the start of the buffer and curPos is set accordingly.
1.1 deraadt 2124: */
2125: job->outBuf[i] = '\0';
2126: if (i >= job->curPos) {
1.2 deraadt 2127: char *cp;
1.6 millert 2128:
2129: cp = JobOutput(job, job->outBuf, &job->outBuf[i], FALSE);
1.1 deraadt 2130:
2131: /*
2132: * There's still more in that thar buffer. This time, though,
2133: * we know there's no newline at the end, so we add one of
2134: * our own free will.
2135: */
2136: if (*cp != '\0') {
2137: if (job->node != lastNode) {
1.2 deraadt 2138: MESSAGE(stdout, job->node);
1.1 deraadt 2139: lastNode = job->node;
2140: }
1.2 deraadt 2141: (void) fprintf(stdout, "%s%s", cp, gotNL ? "\n" : "");
2142: (void) fflush(stdout);
1.1 deraadt 2143: }
2144: }
2145: if (i < max - 1) {
2146: /* shift the remaining characters down */
1.6 millert 2147: (void) memcpy(job->outBuf, &job->outBuf[i + 1], max - (i + 1));
2148: job->curPos = max - (i + 1);
2149:
1.1 deraadt 2150: } else {
2151: /*
2152: * We have written everything out, so we just start over
2153: * from the start of the buffer. No copying. No nothing.
2154: */
2155: job->curPos = 0;
2156: }
2157: }
2158: if (finish) {
2159: /*
2160: * If the finish flag is true, we must loop until we hit
1.6 millert 2161: * end-of-file on the pipe. This is guaranteed to happen
2162: * eventually since the other end of the pipe is now closed
2163: * (we closed it explicitly and the child has exited). When
2164: * we do get an EOF, finish will be set FALSE and we'll fall
2165: * through and out.
1.1 deraadt 2166: */
2167: goto end_loop;
2168: }
2169: } else {
2170: /*
2171: * We've been called to retrieve the output of the job from the
2172: * temporary file where it's been squirreled away. This consists of
2173: * opening the file, reading the output line by line, being sure not
2174: * to print the noPrint line for the shell we used, then close and
2175: * remove the temporary file. Very simple.
2176: *
2177: * Change to read in blocks and do FindSubString type things as for
2178: * pipes? That would allow for "@echo -n..."
2179: */
1.2 deraadt 2180: oFILE = fopen(job->outFile, "r");
2181: if (oFILE != NULL) {
2182: (void) fprintf(stdout, "Results of making %s:\n", job->node->name);
2183: (void) fflush(stdout);
2184: while (fgets(inLine, sizeof(inLine), oFILE) != NULL) {
2185: register char *cp, *endp, *oendp;
1.1 deraadt 2186:
2187: cp = inLine;
1.2 deraadt 2188: oendp = endp = inLine + strlen(inLine);
1.1 deraadt 2189: if (endp[-1] == '\n') {
2190: *--endp = '\0';
2191: }
1.2 deraadt 2192: cp = JobOutput(job, inLine, endp, FALSE);
1.1 deraadt 2193:
2194: /*
2195: * There's still more in that thar buffer. This time, though,
2196: * we know there's no newline at the end, so we add one of
2197: * our own free will.
2198: */
1.2 deraadt 2199: (void) fprintf(stdout, "%s", cp);
2200: (void) fflush(stdout);
2201: if (endp != oendp) {
2202: (void) fprintf(stdout, "\n");
2203: (void) fflush(stdout);
1.1 deraadt 2204: }
2205: }
1.2 deraadt 2206: (void) fclose(oFILE);
2207: (void) eunlink(job->outFile);
1.1 deraadt 2208: }
2209: }
2210: }
2211:
2212: /*-
2213: *-----------------------------------------------------------------------
2214: * Job_CatchChildren --
2215: * Handle the exit of a child. Called from Make_Make.
2216: *
2217: * Results:
2218: * none.
2219: *
2220: * Side Effects:
2221: * The job descriptor is removed from the list of children.
2222: *
2223: * Notes:
2224: * We do waits, blocking or not, according to the wisdom of our
2225: * caller, until there are no more children to report. For each
2226: * job, call JobFinish to finish things off. This will take care of
2227: * putting jobs on the stoppedJobs queue.
2228: *
2229: *-----------------------------------------------------------------------
2230: */
2231: void
1.2 deraadt 2232: Job_CatchChildren(block)
1.1 deraadt 2233: Boolean block; /* TRUE if should block on the wait. */
2234: {
2235: int pid; /* pid of dead child */
2236: register Job *job; /* job descriptor for dead child */
2237: LstNode jnode; /* list element for finding job */
1.2 deraadt 2238: int status; /* Exit/termination status */
1.1 deraadt 2239:
2240: /*
2241: * Don't even bother if we know there's no one around.
2242: */
2243: if (nLocal == 0) {
2244: return;
2245: }
1.6 millert 2246:
1.2 deraadt 2247: while ((pid = waitpid((pid_t) -1, &status,
2248: (block?0:WNOHANG)|WUNTRACED)) > 0)
1.1 deraadt 2249: {
1.2 deraadt 2250: if (DEBUG(JOB)) {
2251: (void) fprintf(stdout, "Process %d exited or stopped.\n", pid);
2252: (void) fflush(stdout);
2253: }
1.6 millert 2254:
1.1 deraadt 2255:
1.21 ! espie 2256: jnode = Lst_Find(jobs, JobCmpPid, (ClientData)&pid);
1.1 deraadt 2257:
1.18 espie 2258: if (jnode == NULL) {
1.2 deraadt 2259: if (WIFSIGNALED(status) && (WTERMSIG(status) == SIGCONT)) {
1.21 ! espie 2260: jnode = Lst_Find(stoppedJobs, JobCmpPid, (ClientData)&pid);
1.18 espie 2261: if (jnode == NULL) {
1.6 millert 2262: Error("Resumed child (%d) not in table", pid);
1.1 deraadt 2263: continue;
2264: }
2265: job = (Job *)Lst_Datum(jnode);
1.2 deraadt 2266: (void) Lst_Remove(stoppedJobs, jnode);
1.1 deraadt 2267: } else {
1.6 millert 2268: Error("Child (%d) not in table?", pid);
1.1 deraadt 2269: continue;
2270: }
2271: } else {
1.2 deraadt 2272: job = (Job *) Lst_Datum(jnode);
1.20 espie 2273: Lst_Remove(jobs, jnode);
1.1 deraadt 2274: nJobs -= 1;
2275: if (jobFull && DEBUG(JOB)) {
1.2 deraadt 2276: (void) fprintf(stdout, "Job queue is no longer full.\n");
2277: (void) fflush(stdout);
1.1 deraadt 2278: }
2279: jobFull = FALSE;
1.2 deraadt 2280: #ifdef REMOTE
2281: if (!(job->flags & JOB_REMOTE)) {
2282: if (DEBUG(JOB)) {
2283: (void) fprintf(stdout,
2284: "Job queue has one fewer local process.\n");
2285: (void) fflush(stdout);
2286: }
2287: nLocal -= 1;
2288: }
2289: #else
1.1 deraadt 2290: nLocal -= 1;
1.2 deraadt 2291: #endif
1.1 deraadt 2292: }
2293:
1.2 deraadt 2294: JobFinish(job, &status);
1.1 deraadt 2295: }
2296: }
2297:
2298: /*-
2299: *-----------------------------------------------------------------------
2300: * Job_CatchOutput --
2301: * Catch the output from our children, if we're using
2302: * pipes do so. Otherwise just block time until we get a
1.6 millert 2303: * signal (most likely a SIGCHLD) since there's no point in
1.1 deraadt 2304: * just spinning when there's nothing to do and the reaping
1.6 millert 2305: * of a child can wait for a while.
1.1 deraadt 2306: *
2307: * Results:
1.6 millert 2308: * None
1.1 deraadt 2309: *
2310: * Side Effects:
2311: * Output is read from pipes if we're piping.
2312: * -----------------------------------------------------------------------
2313: */
2314: void
1.2 deraadt 2315: Job_CatchOutput()
1.1 deraadt 2316: {
2317: int nfds;
2318: struct timeval timeout;
2319: register LstNode ln;
2320: register Job *job;
2321: #ifdef RMT_WILL_WATCH
2322: int pnJobs; /* Previous nJobs */
2323: #endif
2324:
1.2 deraadt 2325: (void) fflush(stdout);
1.1 deraadt 2326: #ifdef RMT_WILL_WATCH
2327: pnJobs = nJobs;
2328:
2329: /*
2330: * It is possible for us to be called with nJobs equal to 0. This happens
2331: * if all the jobs finish and a job that is stopped cannot be run
2332: * locally (eg if maxLocal is 0) and cannot be exported. The job will
2333: * be placed back on the stoppedJobs queue, Job_Empty() will return false,
2334: * Make_Run will call us again when there's nothing for which to wait.
2335: * nJobs never changes, so we loop forever. Hence the check. It could
2336: * be argued that we should sleep for a bit so as not to swamp the
2337: * exportation system with requests. Perhaps we should.
2338: *
2339: * NOTE: IT IS THE RESPONSIBILITY OF Rmt_Wait TO CALL Job_CatchChildren
2340: * IN A TIMELY FASHION TO CATCH ANY LOCALLY RUNNING JOBS THAT EXIT.
2341: * It may use the variable nLocal to determine if it needs to call
1.6 millert 2342: * Job_CatchChildren (if nLocal is 0, there's nothing for which to
1.1 deraadt 2343: * wait...)
2344: */
2345: while (nJobs != 0 && pnJobs == nJobs) {
2346: Rmt_Wait();
2347: }
2348: #else
2349: if (usePipes) {
1.8 deraadt 2350: int count = howmany(outputsn+1, NFDBITS) * sizeof(fd_mask);
2351: fd_set *readfdsp = malloc(count);
2352: if (readfdsp == NULL)
2353: return;
2354:
2355: memcpy(readfdsp, outputsp, count);
1.1 deraadt 2356: timeout.tv_sec = SEL_SEC;
2357: timeout.tv_usec = SEL_USEC;
2358:
1.8 deraadt 2359: if ((nfds = select(outputsn+1, readfdsp, (fd_set *) 0,
2360: (fd_set *) 0, &timeout)) <= 0) {
2361: free(readfdsp);
1.1 deraadt 2362: return;
1.8 deraadt 2363: } else {
1.2 deraadt 2364: if (Lst_Open(jobs) == FAILURE) {
1.8 deraadt 2365: free(readfdsp);
1.2 deraadt 2366: Punt("Cannot open job table");
1.1 deraadt 2367: }
1.18 espie 2368: while (nfds && (ln = Lst_Next(jobs)) != NULL) {
1.2 deraadt 2369: job = (Job *) Lst_Datum(ln);
1.8 deraadt 2370: if (FD_ISSET(job->inPipe, readfdsp)) {
1.2 deraadt 2371: JobDoOutput(job, FALSE);
1.1 deraadt 2372: nfds -= 1;
2373: }
2374: }
1.2 deraadt 2375: Lst_Close(jobs);
1.1 deraadt 2376: }
1.8 deraadt 2377: free(readfdsp);
1.1 deraadt 2378: }
2379: #endif /* RMT_WILL_WATCH */
2380: }
2381:
2382: /*-
2383: *-----------------------------------------------------------------------
2384: * Job_Make --
2385: * Start the creation of a target. Basically a front-end for
2386: * JobStart used by the Make module.
2387: *
2388: * Results:
2389: * None.
2390: *
2391: * Side Effects:
2392: * Another job is started.
2393: *
2394: *-----------------------------------------------------------------------
2395: */
2396: void
1.2 deraadt 2397: Job_Make(gn)
1.1 deraadt 2398: GNode *gn;
2399: {
1.2 deraadt 2400: (void) JobStart(gn, 0, NULL);
1.1 deraadt 2401: }
2402:
2403: /*-
2404: *-----------------------------------------------------------------------
2405: * Job_Init --
2406: * Initialize the process module
2407: *
2408: * Results:
2409: * none
2410: *
2411: * Side Effects:
2412: * lists and counters are initialized
2413: *-----------------------------------------------------------------------
2414: */
2415: void
1.2 deraadt 2416: Job_Init(maxproc, maxlocal)
1.1 deraadt 2417: int maxproc; /* the greatest number of jobs which may be
2418: * running at one time */
2419: int maxlocal; /* the greatest number of local jobs which may
2420: * be running at once. */
2421: {
2422: GNode *begin; /* node for commands to do at the very start */
1.7 millert 2423: int tfd;
1.1 deraadt 2424:
1.7 millert 2425: (void) strcpy(tfile, TMPPAT);
2426: if ((tfd = mkstemp(tfile)) == -1)
2427: Punt("Cannot create temp file: %s", strerror(errno));
2428: else
2429: (void) close(tfd);
1.1 deraadt 2430:
1.17 espie 2431: jobs = Lst_Init();
2432: stoppedJobs = Lst_Init();
1.1 deraadt 2433: maxJobs = maxproc;
2434: maxLocal = maxlocal;
2435: nJobs = 0;
2436: nLocal = 0;
2437: jobFull = FALSE;
2438:
2439: aborting = 0;
2440: errors = 0;
2441:
1.18 espie 2442: lastNode = NULL;
1.1 deraadt 2443:
1.2 deraadt 2444: if (maxJobs == 1
2445: #ifdef REMOTE
2446: || noMessages
2447: #endif
2448: ) {
1.1 deraadt 2449: /*
2450: * If only one job can run at a time, there's no need for a banner,
2451: * no is there?
2452: */
2453: targFmt = "";
2454: } else {
2455: targFmt = TARG_FMT;
2456: }
1.6 millert 2457:
1.2 deraadt 2458: if (shellPath == NULL) {
1.1 deraadt 2459: /*
2460: * The user didn't specify a shell to use, so we are using the
2461: * default one... Both the absolute path and the last component
2462: * must be set. The last component is taken from the 'name' field
2463: * of the default shell description pointed-to by commandShell.
2464: * All default shells are located in _PATH_DEFSHELLDIR.
2465: */
2466: shellName = commandShell->name;
1.2 deraadt 2467: shellPath = str_concat(_PATH_DEFSHELLDIR, shellName, STR_ADDSLASH);
1.1 deraadt 2468: }
2469:
1.2 deraadt 2470: if (commandShell->exit == NULL) {
1.1 deraadt 2471: commandShell->exit = "";
2472: }
1.2 deraadt 2473: if (commandShell->echo == NULL) {
1.1 deraadt 2474: commandShell->echo = "";
2475: }
2476:
2477: /*
2478: * Catch the four signals that POSIX specifies if they aren't ignored.
2479: * JobPassSig will take care of calling JobInterrupt if appropriate.
2480: */
1.2 deraadt 2481: if (signal(SIGINT, SIG_IGN) != SIG_IGN) {
2482: (void) signal(SIGINT, JobPassSig);
1.1 deraadt 2483: }
1.2 deraadt 2484: if (signal(SIGHUP, SIG_IGN) != SIG_IGN) {
2485: (void) signal(SIGHUP, JobPassSig);
1.1 deraadt 2486: }
1.2 deraadt 2487: if (signal(SIGQUIT, SIG_IGN) != SIG_IGN) {
2488: (void) signal(SIGQUIT, JobPassSig);
1.1 deraadt 2489: }
1.2 deraadt 2490: if (signal(SIGTERM, SIG_IGN) != SIG_IGN) {
2491: (void) signal(SIGTERM, JobPassSig);
1.1 deraadt 2492: }
2493: /*
2494: * There are additional signals that need to be caught and passed if
2495: * either the export system wants to be told directly of signals or if
1.6 millert 2496: * we're giving each job its own process group (since then it won't get
1.1 deraadt 2497: * signals from the terminal driver as we own the terminal)
2498: */
2499: #if defined(RMT_WANTS_SIGNALS) || defined(USE_PGRP)
1.2 deraadt 2500: if (signal(SIGTSTP, SIG_IGN) != SIG_IGN) {
2501: (void) signal(SIGTSTP, JobPassSig);
1.1 deraadt 2502: }
1.2 deraadt 2503: if (signal(SIGTTOU, SIG_IGN) != SIG_IGN) {
2504: (void) signal(SIGTTOU, JobPassSig);
1.1 deraadt 2505: }
1.2 deraadt 2506: if (signal(SIGTTIN, SIG_IGN) != SIG_IGN) {
2507: (void) signal(SIGTTIN, JobPassSig);
1.1 deraadt 2508: }
1.2 deraadt 2509: if (signal(SIGWINCH, SIG_IGN) != SIG_IGN) {
2510: (void) signal(SIGWINCH, JobPassSig);
1.1 deraadt 2511: }
2512: #endif
1.6 millert 2513:
1.2 deraadt 2514: begin = Targ_FindNode(".BEGIN", TARG_NOCREATE);
1.1 deraadt 2515:
1.18 espie 2516: if (begin != NULL) {
1.2 deraadt 2517: JobStart(begin, JOB_SPECIAL, (Job *)0);
1.1 deraadt 2518: while (nJobs) {
2519: Job_CatchOutput();
2520: #ifndef RMT_WILL_WATCH
1.2 deraadt 2521: Job_CatchChildren(!usePipes);
1.1 deraadt 2522: #endif /* RMT_WILL_WATCH */
2523: }
2524: }
1.2 deraadt 2525: postCommands = Targ_FindNode(".END", TARG_CREATE);
1.1 deraadt 2526: }
2527:
2528: /*-
2529: *-----------------------------------------------------------------------
2530: * Job_Full --
2531: * See if the job table is full. It is considered full if it is OR
2532: * if we are in the process of aborting OR if we have
2533: * reached/exceeded our local quota. This prevents any more jobs
2534: * from starting up.
2535: *
2536: * Results:
2537: * TRUE if the job table is full, FALSE otherwise
2538: * Side Effects:
2539: * None.
2540: *-----------------------------------------------------------------------
2541: */
2542: Boolean
1.2 deraadt 2543: Job_Full()
1.1 deraadt 2544: {
1.2 deraadt 2545: return(aborting || jobFull);
1.1 deraadt 2546: }
2547:
2548: /*-
2549: *-----------------------------------------------------------------------
2550: * Job_Empty --
2551: * See if the job table is empty. Because the local concurrency may
2552: * be set to 0, it is possible for the job table to become empty,
2553: * while the list of stoppedJobs remains non-empty. In such a case,
2554: * we want to restart as many jobs as we can.
2555: *
2556: * Results:
2557: * TRUE if it is. FALSE if it ain't.
2558: *
2559: * Side Effects:
2560: * None.
2561: *
2562: * -----------------------------------------------------------------------
2563: */
2564: Boolean
1.2 deraadt 2565: Job_Empty()
1.1 deraadt 2566: {
2567: if (nJobs == 0) {
2568: if (!Lst_IsEmpty(stoppedJobs) && !aborting) {
2569: /*
2570: * The job table is obviously not full if it has no jobs in
2571: * it...Try and restart the stopped jobs.
2572: */
2573: jobFull = FALSE;
1.2 deraadt 2574: JobRestartJobs();
1.1 deraadt 2575: return(FALSE);
2576: } else {
2577: return(TRUE);
2578: }
2579: } else {
2580: return(FALSE);
2581: }
2582: }
2583:
2584: /*-
2585: *-----------------------------------------------------------------------
2586: * JobMatchShell --
2587: * Find a matching shell in 'shells' given its final component.
2588: *
2589: * Results:
2590: * A pointer to the Shell structure.
2591: *
2592: * Side Effects:
2593: * None.
2594: *
2595: *-----------------------------------------------------------------------
2596: */
2597: static Shell *
1.2 deraadt 2598: JobMatchShell(name)
1.1 deraadt 2599: char *name; /* Final component of shell path */
2600: {
2601: register Shell *sh; /* Pointer into shells table */
2602: Shell *match; /* Longest-matching shell */
2603: register char *cp1,
2604: *cp2;
2605: char *eoname;
2606:
1.2 deraadt 2607: eoname = name + strlen(name);
1.1 deraadt 2608:
1.2 deraadt 2609: match = NULL;
1.1 deraadt 2610:
2611: for (sh = shells; sh->name != NULL; sh++) {
1.2 deraadt 2612: for (cp1 = eoname - strlen(sh->name), cp2 = sh->name;
1.1 deraadt 2613: *cp1 != '\0' && *cp1 == *cp2;
2614: cp1++, cp2++) {
2615: continue;
2616: }
2617: if (*cp1 != *cp2) {
2618: continue;
1.2 deraadt 2619: } else if (match == NULL || strlen(match->name) < strlen(sh->name)) {
2620: match = sh;
1.1 deraadt 2621: }
2622: }
1.2 deraadt 2623: return(match == NULL ? sh : match);
1.1 deraadt 2624: }
2625:
2626: /*-
2627: *-----------------------------------------------------------------------
2628: * Job_ParseShell --
2629: * Parse a shell specification and set up commandShell, shellPath
2630: * and shellName appropriately.
2631: *
2632: * Results:
2633: * FAILURE if the specification was incorrect.
2634: *
2635: * Side Effects:
2636: * commandShell points to a Shell structure (either predefined or
2637: * created from the shell spec), shellPath is the full path of the
2638: * shell described by commandShell, while shellName is just the
2639: * final component of shellPath.
2640: *
2641: * Notes:
2642: * A shell specification consists of a .SHELL target, with dependency
2643: * operator, followed by a series of blank-separated words. Double
2644: * quotes can be used to use blanks in words. A backslash escapes
2645: * anything (most notably a double-quote and a space) and
2646: * provides the functionality it does in C. Each word consists of
2647: * keyword and value separated by an equal sign. There should be no
2648: * unnecessary spaces in the word. The keywords are as follows:
2649: * name Name of shell.
2650: * path Location of shell. Overrides "name" if given
2651: * quiet Command to turn off echoing.
2652: * echo Command to turn echoing on
2653: * filter Result of turning off echoing that shouldn't be
2654: * printed.
2655: * echoFlag Flag to turn echoing on at the start
2656: * errFlag Flag to turn error checking on at the start
2657: * hasErrCtl True if shell has error checking control
2658: * check Command to turn on error checking if hasErrCtl
2659: * is TRUE or template of command to echo a command
2660: * for which error checking is off if hasErrCtl is
2661: * FALSE.
2662: * ignore Command to turn off error checking if hasErrCtl
2663: * is TRUE or template of command to execute a
2664: * command so as to ignore any errors it returns if
2665: * hasErrCtl is FALSE.
2666: *
2667: *-----------------------------------------------------------------------
2668: */
2669: ReturnStatus
1.2 deraadt 2670: Job_ParseShell(line)
1.1 deraadt 2671: char *line; /* The shell spec */
2672: {
2673: char **words;
2674: int wordCount;
2675: register char **argv;
2676: register int argc;
2677: char *path;
2678: Shell newShell;
2679: Boolean fullSpec = FALSE;
2680:
1.2 deraadt 2681: while (isspace(*line)) {
1.1 deraadt 2682: line++;
2683: }
1.12 espie 2684:
2685: efree(shellArgv);
2686:
2687: words = brk_string(line, &wordCount, TRUE, &shellArgv);
1.1 deraadt 2688:
1.2 deraadt 2689: memset((Address)&newShell, 0, sizeof(newShell));
1.6 millert 2690:
1.1 deraadt 2691: /*
2692: * Parse the specification by keyword
2693: */
1.12 espie 2694: for (path = NULL, argc = wordCount - 1, argv = words;
1.1 deraadt 2695: argc != 0;
2696: argc--, argv++) {
1.2 deraadt 2697: if (strncmp(*argv, "path=", 5) == 0) {
1.1 deraadt 2698: path = &argv[0][5];
1.2 deraadt 2699: } else if (strncmp(*argv, "name=", 5) == 0) {
1.1 deraadt 2700: newShell.name = &argv[0][5];
2701: } else {
1.2 deraadt 2702: if (strncmp(*argv, "quiet=", 6) == 0) {
1.1 deraadt 2703: newShell.echoOff = &argv[0][6];
1.2 deraadt 2704: } else if (strncmp(*argv, "echo=", 5) == 0) {
1.1 deraadt 2705: newShell.echoOn = &argv[0][5];
1.2 deraadt 2706: } else if (strncmp(*argv, "filter=", 7) == 0) {
1.1 deraadt 2707: newShell.noPrint = &argv[0][7];
2708: newShell.noPLen = strlen(newShell.noPrint);
1.2 deraadt 2709: } else if (strncmp(*argv, "echoFlag=", 9) == 0) {
1.1 deraadt 2710: newShell.echo = &argv[0][9];
1.2 deraadt 2711: } else if (strncmp(*argv, "errFlag=", 8) == 0) {
1.1 deraadt 2712: newShell.exit = &argv[0][8];
1.2 deraadt 2713: } else if (strncmp(*argv, "hasErrCtl=", 10) == 0) {
1.1 deraadt 2714: char c = argv[0][10];
2715: newShell.hasErrCtl = !((c != 'Y') && (c != 'y') &&
1.2 deraadt 2716: (c != 'T') && (c != 't'));
2717: } else if (strncmp(*argv, "check=", 6) == 0) {
1.1 deraadt 2718: newShell.errCheck = &argv[0][6];
1.2 deraadt 2719: } else if (strncmp(*argv, "ignore=", 7) == 0) {
1.1 deraadt 2720: newShell.ignErr = &argv[0][7];
2721: } else {
1.2 deraadt 2722: Parse_Error(PARSE_FATAL, "Unknown keyword \"%s\"",
1.1 deraadt 2723: *argv);
1.12 espie 2724: free(words);
1.2 deraadt 2725: return(FAILURE);
1.1 deraadt 2726: }
2727: fullSpec = TRUE;
2728: }
2729: }
2730:
1.2 deraadt 2731: if (path == NULL) {
1.1 deraadt 2732: /*
2733: * If no path was given, the user wants one of the pre-defined shells,
2734: * yes? So we find the one s/he wants with the help of JobMatchShell
2735: * and set things up the right way. shellPath will be set up by
2736: * Job_Init.
2737: */
1.2 deraadt 2738: if (newShell.name == NULL) {
2739: Parse_Error(PARSE_FATAL, "Neither path nor name specified");
2740: return(FAILURE);
1.1 deraadt 2741: } else {
1.2 deraadt 2742: commandShell = JobMatchShell(newShell.name);
1.1 deraadt 2743: shellName = newShell.name;
2744: }
2745: } else {
2746: /*
1.6 millert 2747: * The user provided a path. If s/he gave nothing else (fullSpec is
1.1 deraadt 2748: * FALSE), try and find a matching shell in the ones we know of.
2749: * Else we just take the specification at its word and copy it
2750: * to a new location. In either case, we need to record the
2751: * path the user gave for the shell.
2752: */
2753: shellPath = path;
1.2 deraadt 2754: path = strrchr(path, '/');
2755: if (path == NULL) {
1.1 deraadt 2756: path = shellPath;
2757: } else {
2758: path += 1;
2759: }
1.2 deraadt 2760: if (newShell.name != NULL) {
1.1 deraadt 2761: shellName = newShell.name;
2762: } else {
2763: shellName = path;
2764: }
2765: if (!fullSpec) {
1.2 deraadt 2766: commandShell = JobMatchShell(shellName);
1.1 deraadt 2767: } else {
2768: commandShell = (Shell *) emalloc(sizeof(Shell));
2769: *commandShell = newShell;
2770: }
2771: }
2772:
2773: if (commandShell->echoOn && commandShell->echoOff) {
2774: commandShell->hasEchoCtl = TRUE;
2775: }
1.6 millert 2776:
1.1 deraadt 2777: if (!commandShell->hasErrCtl) {
1.2 deraadt 2778: if (commandShell->errCheck == NULL) {
1.1 deraadt 2779: commandShell->errCheck = "";
2780: }
1.2 deraadt 2781: if (commandShell->ignErr == NULL) {
1.1 deraadt 2782: commandShell->ignErr = "%s\n";
2783: }
2784: }
1.6 millert 2785:
1.1 deraadt 2786: /*
2787: * Do not free up the words themselves, since they might be in use by the
2788: * shell specification...
2789: */
1.2 deraadt 2790: free(words);
1.1 deraadt 2791: return SUCCESS;
2792: }
2793:
2794: /*-
2795: *-----------------------------------------------------------------------
2796: * JobInterrupt --
2797: * Handle the receipt of an interrupt.
2798: *
2799: * Results:
2800: * None
2801: *
2802: * Side Effects:
2803: * All children are killed. Another job will be started if the
2804: * .INTERRUPT target was given.
2805: *-----------------------------------------------------------------------
2806: */
2807: static void
1.2 deraadt 2808: JobInterrupt(runINTERRUPT, signo)
1.1 deraadt 2809: int runINTERRUPT; /* Non-zero if commands for the .INTERRUPT
2810: * target should be executed */
1.2 deraadt 2811: int signo; /* signal received */
1.1 deraadt 2812: {
2813: LstNode ln; /* element in job table */
2814: Job *job; /* job descriptor in that element */
2815: GNode *interrupt; /* the node describing the .INTERRUPT target */
1.6 millert 2816:
1.1 deraadt 2817: aborting = ABORT_INTERRUPT;
2818:
1.2 deraadt 2819: (void) Lst_Open(jobs);
1.18 espie 2820: while ((ln = Lst_Next(jobs)) != NULL) {
1.2 deraadt 2821: job = (Job *) Lst_Datum(ln);
1.1 deraadt 2822:
1.2 deraadt 2823: if (!Targ_Precious(job->node)) {
2824: char *file = (job->node->path == NULL ?
1.1 deraadt 2825: job->node->name :
2826: job->node->path);
1.2 deraadt 2827: if (!noExecute && eunlink(file) != -1) {
2828: Error("*** %s removed", file);
1.1 deraadt 2829: }
2830: }
2831: #ifdef RMT_WANTS_SIGNALS
2832: if (job->flags & JOB_REMOTE) {
2833: /*
2834: * If job is remote, let the Rmt module do the killing.
2835: */
1.2 deraadt 2836: if (!Rmt_Signal(job, signo)) {
1.1 deraadt 2837: /*
2838: * If couldn't kill the thing, finish it out now with an
2839: * error code, since no exit report will come in likely.
2840: */
1.2 deraadt 2841: int status;
1.1 deraadt 2842:
2843: status.w_status = 0;
2844: status.w_retcode = 1;
1.2 deraadt 2845: JobFinish(job, &status);
1.1 deraadt 2846: }
2847: } else if (job->pid) {
1.2 deraadt 2848: KILL(job->pid, signo);
1.1 deraadt 2849: }
2850: #else
2851: if (job->pid) {
1.2 deraadt 2852: if (DEBUG(JOB)) {
2853: (void) fprintf(stdout,
1.6 millert 2854: "JobInterrupt passing signal to child %d.\n",
1.2 deraadt 2855: job->pid);
2856: (void) fflush(stdout);
2857: }
2858: KILL(job->pid, signo);
2859: }
2860: #endif /* RMT_WANTS_SIGNALS */
2861: }
2862:
2863: #ifdef REMOTE
2864: (void)Lst_Open(stoppedJobs);
1.18 espie 2865: while ((ln = Lst_Next(stoppedJobs)) != NULL) {
1.2 deraadt 2866: job = (Job *) Lst_Datum(ln);
2867:
2868: if (job->flags & JOB_RESTART) {
2869: if (DEBUG(JOB)) {
2870: (void) fprintf(stdout, "%s%s",
2871: "JobInterrupt skipping job on stopped queue",
2872: "-- it was waiting to be restarted.\n");
2873: (void) fflush(stdout);
2874: }
2875: continue;
2876: }
2877: if (!Targ_Precious(job->node)) {
2878: char *file = (job->node->path == NULL ?
2879: job->node->name :
2880: job->node->path);
2881: if (eunlink(file) == 0) {
2882: Error("*** %s removed", file);
2883: }
2884: }
2885: /*
2886: * Resume the thing so it will take the signal.
2887: */
2888: if (DEBUG(JOB)) {
2889: (void) fprintf(stdout,
1.6 millert 2890: "JobInterrupt passing CONT to stopped child %d.\n",
1.2 deraadt 2891: job->pid);
2892: (void) fflush(stdout);
2893: }
2894: KILL(job->pid, SIGCONT);
2895: #ifdef RMT_WANTS_SIGNALS
2896: if (job->flags & JOB_REMOTE) {
2897: /*
2898: * If job is remote, let the Rmt module do the killing.
2899: */
2900: if (!Rmt_Signal(job, SIGINT)) {
2901: /*
2902: * If couldn't kill the thing, finish it out now with an
2903: * error code, since no exit report will come in likely.
2904: */
2905: int status;
2906: status.w_status = 0;
2907: status.w_retcode = 1;
2908: JobFinish(job, &status);
2909: }
2910: } else if (job->pid) {
2911: if (DEBUG(JOB)) {
2912: (void) fprintf(stdout,
2913: "JobInterrupt passing interrupt to stopped child %d.\n",
2914: job->pid);
2915: (void) fflush(stdout);
2916: }
1.1 deraadt 2917: KILL(job->pid, SIGINT);
2918: }
2919: #endif /* RMT_WANTS_SIGNALS */
2920: }
1.2 deraadt 2921: #endif
2922: Lst_Close(stoppedJobs);
1.1 deraadt 2923:
2924: if (runINTERRUPT && !touchFlag) {
1.2 deraadt 2925: interrupt = Targ_FindNode(".INTERRUPT", TARG_NOCREATE);
1.18 espie 2926: if (interrupt != NULL) {
1.1 deraadt 2927: ignoreErrors = FALSE;
2928:
1.2 deraadt 2929: JobStart(interrupt, JOB_IGNDOTS, (Job *)0);
1.1 deraadt 2930: while (nJobs) {
2931: Job_CatchOutput();
2932: #ifndef RMT_WILL_WATCH
1.2 deraadt 2933: Job_CatchChildren(!usePipes);
1.1 deraadt 2934: #endif /* RMT_WILL_WATCH */
2935: }
2936: }
2937: }
1.2 deraadt 2938: (void) eunlink(tfile);
2939: exit(signo);
1.1 deraadt 2940: }
2941:
2942: /*
2943: *-----------------------------------------------------------------------
1.12 espie 2944: * Job_Finish --
1.1 deraadt 2945: * Do final processing such as the running of the commands
1.6 millert 2946: * attached to the .END target.
1.1 deraadt 2947: *
2948: * Results:
2949: * Number of errors reported.
2950: *
2951: * Side Effects:
1.6 millert 2952: * The process' temporary file (tfile) is removed if it still
1.1 deraadt 2953: * existed.
2954: *-----------------------------------------------------------------------
2955: */
2956: int
1.12 espie 2957: Job_Finish()
1.1 deraadt 2958: {
1.18 espie 2959: if (postCommands != NULL && !Lst_IsEmpty(postCommands->commands)) {
1.1 deraadt 2960: if (errors) {
1.2 deraadt 2961: Error("Errors reported so .END ignored");
1.1 deraadt 2962: } else {
1.2 deraadt 2963: JobStart(postCommands, JOB_SPECIAL | JOB_IGNDOTS, NULL);
1.1 deraadt 2964:
2965: while (nJobs) {
2966: Job_CatchOutput();
2967: #ifndef RMT_WILL_WATCH
1.2 deraadt 2968: Job_CatchChildren(!usePipes);
1.1 deraadt 2969: #endif /* RMT_WILL_WATCH */
2970: }
2971: }
2972: }
1.2 deraadt 2973: (void) eunlink(tfile);
1.1 deraadt 2974: return(errors);
2975: }
2976:
1.12 espie 2977: /*-
2978: *-----------------------------------------------------------------------
2979: * Job_End --
2980: * Cleanup any memory used by the jobs module
2981: *
2982: * Results:
2983: * None.
2984: *
2985: * Side Effects:
2986: * Memory is freed
2987: *-----------------------------------------------------------------------
2988: */
2989: void
2990: Job_End()
2991: {
1.13 espie 2992: #ifdef CLEANUP
1.12 espie 2993: efree(shellArgv);
1.13 espie 2994: #endif
1.12 espie 2995: }
2996:
1.1 deraadt 2997: /*-
2998: *-----------------------------------------------------------------------
2999: * Job_Wait --
3000: * Waits for all running jobs to finish and returns. Sets 'aborting'
3001: * to ABORT_WAIT to prevent other jobs from starting.
3002: *
3003: * Results:
3004: * None.
3005: *
3006: * Side Effects:
3007: * Currently running jobs finish.
3008: *
3009: *-----------------------------------------------------------------------
3010: */
3011: void
3012: Job_Wait()
3013: {
3014: aborting = ABORT_WAIT;
3015: while (nJobs != 0) {
3016: Job_CatchOutput();
3017: #ifndef RMT_WILL_WATCH
3018: Job_CatchChildren(!usePipes);
3019: #endif /* RMT_WILL_WATCH */
3020: }
3021: aborting = 0;
3022: }
3023:
3024: /*-
3025: *-----------------------------------------------------------------------
3026: * Job_AbortAll --
3027: * Abort all currently running jobs without handling output or anything.
3028: * This function is to be called only in the event of a major
3029: * error. Most definitely NOT to be called from JobInterrupt.
3030: *
3031: * Results:
3032: * None
3033: *
3034: * Side Effects:
3035: * All children are killed, not just the firstborn
3036: *-----------------------------------------------------------------------
3037: */
3038: void
1.2 deraadt 3039: Job_AbortAll()
1.1 deraadt 3040: {
1.2 deraadt 3041: LstNode ln; /* element in job table */
1.1 deraadt 3042: Job *job; /* the job descriptor in that element */
3043: int foo;
1.6 millert 3044:
1.1 deraadt 3045: aborting = ABORT_ERROR;
1.6 millert 3046:
1.1 deraadt 3047: if (nJobs) {
3048:
1.2 deraadt 3049: (void) Lst_Open(jobs);
1.18 espie 3050: while ((ln = Lst_Next(jobs)) != NULL) {
1.2 deraadt 3051: job = (Job *) Lst_Datum(ln);
1.1 deraadt 3052:
3053: /*
3054: * kill the child process with increasingly drastic signals to make
1.6 millert 3055: * darn sure it's dead.
1.1 deraadt 3056: */
3057: #ifdef RMT_WANTS_SIGNALS
3058: if (job->flags & JOB_REMOTE) {
3059: Rmt_Signal(job, SIGINT);
3060: Rmt_Signal(job, SIGKILL);
3061: } else {
3062: KILL(job->pid, SIGINT);
3063: KILL(job->pid, SIGKILL);
3064: }
3065: #else
3066: KILL(job->pid, SIGINT);
3067: KILL(job->pid, SIGKILL);
3068: #endif /* RMT_WANTS_SIGNALS */
3069: }
3070: }
1.6 millert 3071:
1.1 deraadt 3072: /*
3073: * Catch as many children as want to report in at first, then give up
3074: */
1.2 deraadt 3075: while (waitpid((pid_t) -1, &foo, WNOHANG) > 0)
1.1 deraadt 3076: continue;
1.2 deraadt 3077: (void) eunlink(tfile);
3078: }
3079:
3080: #ifdef REMOTE
3081: /*-
3082: *-----------------------------------------------------------------------
3083: * JobFlagForMigration --
3084: * Handle the eviction of a child. Called from RmtStatusChange.
3085: * Flags the child as remigratable and then suspends it.
3086: *
3087: * Results:
3088: * none.
3089: *
3090: * Side Effects:
3091: * The job descriptor is flagged for remigration.
3092: *
3093: *-----------------------------------------------------------------------
3094: */
3095: void
3096: JobFlagForMigration(hostID)
3097: int hostID; /* ID of host we used, for matching children. */
3098: {
3099: register Job *job; /* job descriptor for dead child */
3100: LstNode jnode; /* list element for finding job */
3101:
3102: if (DEBUG(JOB)) {
3103: (void) fprintf(stdout, "JobFlagForMigration(%d) called.\n", hostID);
3104: (void) fflush(stdout);
3105: }
1.21 ! espie 3106: jnode = Lst_Find(jobs, JobCmpRmtID, (ClientData)hostID);
1.2 deraadt 3107:
1.18 espie 3108: if (jnode == NULL) {
1.21 ! espie 3109: jnode = Lst_Find(stoppedJobs, JobCmpRmtID, (ClientData)hostID);
1.18 espie 3110: if (jnode == NULL) {
1.2 deraadt 3111: if (DEBUG(JOB)) {
3112: Error("Evicting host(%d) not in table", hostID);
3113: }
3114: return;
3115: }
3116: }
3117: job = (Job *) Lst_Datum(jnode);
3118:
3119: if (DEBUG(JOB)) {
3120: (void) fprintf(stdout,
3121: "JobFlagForMigration(%d) found job '%s'.\n", hostID,
3122: job->node->name);
3123: (void) fflush(stdout);
3124: }
3125:
3126: KILL(job->pid, SIGSTOP);
3127:
3128: job->flags |= JOB_REMIGRATE;
3129: }
3130:
3131: #endif
3132:
3133: /*-
3134: *-----------------------------------------------------------------------
3135: * JobRestartJobs --
3136: * Tries to restart stopped jobs if there are slots available.
3137: * Note that this tries to restart them regardless of pending errors.
3138: * It's not good to leave stopped jobs lying around!
3139: *
3140: * Results:
3141: * None.
3142: *
3143: * Side Effects:
3144: * Resumes(and possibly migrates) jobs.
3145: *
3146: *-----------------------------------------------------------------------
3147: */
3148: static void
3149: JobRestartJobs()
3150: {
1.19 espie 3151: Job *job;
3152:
3153: while (!jobFull && (job = (Job *)Lst_DeQueue(stoppedJobs)) != NULL) {
1.2 deraadt 3154: if (DEBUG(JOB)) {
3155: (void) fprintf(stdout,
3156: "Job queue is not full. Restarting a stopped job.\n");
3157: (void) fflush(stdout);
3158: }
1.19 espie 3159: JobRestart(job);
1.2 deraadt 3160: }
1.1 deraadt 3161: }
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