Annotation of src/usr.bin/make/job.c, Revision 1.29
1.29 ! espie 1: /* $OpenBSD: job.c,v 1.28 2000/06/10 01:41:05 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
1.29 ! espie 46: static char rcsid[] = "$OpenBSD: job.c,v 1.28 2000/06/10 01:41:05 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:
132: /*
1.6 millert 133: * error handling variables
1.1 deraadt 134: */
135: static int errors = 0; /* number of errors reported */
136: static int aborting = 0; /* why is the make aborting? */
137: #define ABORT_ERROR 1 /* Because of an error */
138: #define ABORT_INTERRUPT 2 /* Because it was interrupted */
139: #define ABORT_WAIT 3 /* Waiting for jobs to finish */
140:
1.6 millert 141: /*
1.2 deraadt 142: * XXX: Avoid SunOS bug... FILENO() is fp->_file, and file
143: * is a char! So when we go above 127 we turn negative!
144: */
145: #define FILENO(a) ((unsigned) fileno(a))
1.1 deraadt 146:
147: /*
148: * post-make command processing. The node postCommands is really just the
149: * .END target but we keep it around to avoid having to search for it
150: * all the time.
151: */
152: static GNode *postCommands; /* node containing commands to execute when
153: * everything else is done */
154: static int numCommands; /* The number of commands actually printed
155: * for a target. Should this number be
156: * 0, no shell will be executed. */
157:
158: /*
159: * Return values from JobStart.
160: */
161: #define JOB_RUNNING 0 /* Job is running */
162: #define JOB_ERROR 1 /* Error in starting the job */
163: #define JOB_FINISHED 2 /* The job is already finished */
164: #define JOB_STOPPED 3 /* The job is stopped */
165:
166: /*
1.22 espie 167: * tfile is used to build temp file names to store shell commands to
168: * execute.
1.1 deraadt 169: */
1.7 millert 170: static char tfile[sizeof(TMPPAT)];
1.1 deraadt 171:
172:
173: /*
174: * Descriptions for various shells.
175: */
176: static Shell shells[] = {
177: /*
178: * CSH description. The csh can do echo control by playing
179: * with the setting of the 'echo' shell variable. Sadly,
180: * however, it is unable to do error control nicely.
181: */
182: {
183: "csh",
184: TRUE, "unset verbose", "set verbose", "unset verbose", 10,
185: FALSE, "echo \"%s\"\n", "csh -c \"%s || exit 0\"",
186: "v", "e",
187: },
188: /*
189: * SH description. Echo control is also possible and, under
190: * sun UNIX anyway, one can even control error checking.
191: */
192: {
193: "sh",
194: TRUE, "set -", "set -v", "set -", 5,
1.2 deraadt 195: TRUE, "set -e", "set +e",
196: #ifdef OLDBOURNESHELL
1.1 deraadt 197: FALSE, "echo \"%s\"\n", "sh -c '%s || exit 0'\n",
1.2 deraadt 198: #endif
1.1 deraadt 199: "v", "e",
200: },
201: /*
202: * UNKNOWN.
203: */
204: {
1.2 deraadt 205: (char *) 0,
206: FALSE, (char *) 0, (char *) 0, (char *) 0, 0,
207: FALSE, (char *) 0, (char *) 0,
208: (char *) 0, (char *) 0,
1.1 deraadt 209: }
210: };
211: static Shell *commandShell = &shells[DEFSHELL];/* this is the shell to
212: * which we pass all
213: * commands in the Makefile.
214: * It is set by the
215: * Job_ParseShell function */
1.2 deraadt 216: static char *shellPath = NULL, /* full pathname of
1.1 deraadt 217: * executable image */
1.12 espie 218: *shellName = NULL, /* last component of shell */
219: *shellArgv = NULL; /* Custom shell args */
1.1 deraadt 220:
221:
222: static int maxJobs; /* The most children we can run at once */
223: static int maxLocal; /* The most local ones we can have */
1.2 deraadt 224: STATIC int nJobs; /* The number of children currently running */
225: STATIC int nLocal; /* The number of local children */
1.29 ! espie 226: STATIC LIST jobs; /* The structures that describe them */
1.2 deraadt 227: STATIC Boolean jobFull; /* Flag to tell when the job table is full. It
1.1 deraadt 228: * is set TRUE when (1) the total number of
229: * running jobs equals the maximum allowed or
230: * (2) a job can only be run locally, but
231: * nLocal equals maxLocal */
232: #ifndef RMT_WILL_WATCH
1.8 deraadt 233: static fd_set *outputsp; /* Set of descriptors of pipes connected to
1.1 deraadt 234: * the output channels of children */
1.8 deraadt 235: static int outputsn;
1.1 deraadt 236: #endif
237:
1.2 deraadt 238: STATIC GNode *lastNode; /* The node for which output was most recently
1.1 deraadt 239: * produced. */
1.2 deraadt 240: STATIC char *targFmt; /* Format string to use to head output from a
1.1 deraadt 241: * job when it's not the most-recent job heard
242: * from */
1.2 deraadt 243:
244: #ifdef REMOTE
245: # define TARG_FMT "--- %s at %s ---\n" /* Default format */
246: # define MESSAGE(fp, gn) \
247: (void) fprintf(fp, targFmt, gn->name, gn->rem.hname);
248: #else
249: # define TARG_FMT "--- %s ---\n" /* Default format */
250: # define MESSAGE(fp, gn) \
251: (void) fprintf(fp, targFmt, gn->name);
252: #endif
1.1 deraadt 253:
254: /*
255: * When JobStart attempts to run a job remotely but can't, and isn't allowed
256: * to run the job locally, or when Job_CatchChildren detects a job that has
257: * been migrated home, the job is placed on the stoppedJobs queue to be run
1.6 millert 258: * when the next job finishes.
1.1 deraadt 259: */
1.29 ! espie 260: STATIC LIST stoppedJobs; /* Lst of Job structures describing
1.1 deraadt 261: * jobs that were stopped due to concurrency
262: * limits or migration home */
263:
264:
265: #if defined(USE_PGRP) && defined(SYSV)
1.2 deraadt 266: # define KILL(pid, sig) killpg(-(pid), (sig))
1.1 deraadt 267: #else
268: # if defined(USE_PGRP)
1.2 deraadt 269: # define KILL(pid, sig) killpg((pid), (sig))
1.1 deraadt 270: # else
1.2 deraadt 271: # define KILL(pid, sig) kill((pid), (sig))
1.1 deraadt 272: # endif
273: #endif
274:
1.6 millert 275: /*
1.2 deraadt 276: * Grmpf... There is no way to set bits of the wait structure
277: * anymore with the stupid W*() macros. I liked the union wait
278: * stuff much more. So, we devise our own macros... This is
279: * really ugly, use dramamine sparingly. You have been warned.
280: */
281: #define W_SETMASKED(st, val, fun) \
282: { \
283: int sh = (int) ~0; \
284: int mask = fun(sh); \
285: \
286: for (sh = 0; ((mask >> sh) & 1) == 0; sh++) \
287: continue; \
288: *(st) = (*(st) & ~mask) | ((val) << sh); \
289: }
290:
291: #define W_SETTERMSIG(st, val) W_SETMASKED(st, val, WTERMSIG)
292: #define W_SETEXITSTATUS(st, val) W_SETMASKED(st, val, WEXITSTATUS)
293:
294:
1.28 espie 295: static void JobCondPassSig __P((void *, void *));
1.1 deraadt 296: static void JobPassSig __P((int));
1.28 espie 297: static int JobCmpPid __P((void *, void *));
298: static int JobPrintCommand __P((void *, void *));
299: static void JobSaveCommand __P((void *, void *));
1.2 deraadt 300: static void JobClose __P((Job *));
301: #ifdef REMOTE
1.28 espie 302: static int JobCmpRmtID __P((Job *, void *));
1.2 deraadt 303: # ifdef RMT_WILL_WATCH
304: static void JobLocalInput __P((int, Job *));
305: # endif
306: #else
307: static void JobFinish __P((Job *, int *));
1.1 deraadt 308: static void JobExec __P((Job *, char **));
1.2 deraadt 309: #endif
1.1 deraadt 310: static void JobMakeArgv __P((Job *, char **));
311: static void JobRestart __P((Job *));
312: static int JobStart __P((GNode *, int, Job *));
1.6 millert 313: static char *JobOutput __P((Job *, char *, char *, int));
1.1 deraadt 314: static void JobDoOutput __P((Job *, Boolean));
315: static Shell *JobMatchShell __P((char *));
1.2 deraadt 316: static void JobInterrupt __P((int, int));
317: static void JobRestartJobs __P((void));
1.1 deraadt 318:
319: /*-
320: *-----------------------------------------------------------------------
321: * JobCondPassSig --
322: * Pass a signal to a job if the job is remote or if USE_PGRP
323: * is defined.
324: *
325: * Side Effects:
326: * None, except the job may bite it.
327: *
328: *-----------------------------------------------------------------------
329: */
1.27 espie 330: static void
1.1 deraadt 331: JobCondPassSig(jobp, signop)
1.28 espie 332: void *jobp; /* Job to biff */
333: void *signop; /* Signal to send it */
1.1 deraadt 334: {
335: Job *job = (Job *) jobp;
336: int signo = *(int *) signop;
337: #ifdef RMT_WANTS_SIGNALS
338: if (job->flags & JOB_REMOTE) {
1.2 deraadt 339: (void) Rmt_Signal(job, signo);
1.1 deraadt 340: } else {
341: KILL(job->pid, signo);
342: }
343: #else
344: /*
345: * Assume that sending the signal to job->pid will signal any remote
346: * job as well.
347: */
1.2 deraadt 348: if (DEBUG(JOB)) {
1.6 millert 349: (void) fprintf(stdout,
1.2 deraadt 350: "JobCondPassSig passing signal %d to child %d.\n",
351: signo, job->pid);
352: (void) fflush(stdout);
353: }
1.1 deraadt 354: KILL(job->pid, signo);
355: #endif
356: }
357:
358: /*-
359: *-----------------------------------------------------------------------
360: * JobPassSig --
361: * Pass a signal on to all remote jobs and to all local jobs if
362: * USE_PGRP is defined, then die ourselves.
363: *
364: * Results:
365: * None.
366: *
367: * Side Effects:
368: * We die by the same signal.
1.6 millert 369: *
1.1 deraadt 370: *-----------------------------------------------------------------------
371: */
372: static void
373: JobPassSig(signo)
374: int signo; /* The signal number we've received */
375: {
1.2 deraadt 376: sigset_t nmask, omask;
1.3 niklas 377: struct sigaction act;
1.6 millert 378:
1.2 deraadt 379: if (DEBUG(JOB)) {
380: (void) fprintf(stdout, "JobPassSig(%d) called.\n", signo);
381: (void) fflush(stdout);
382: }
1.29 ! espie 383: Lst_ForEach(&jobs, JobCondPassSig, &signo);
1.1 deraadt 384:
385: /*
386: * Deal with proper cleanup based on the signal received. We only run
387: * the .INTERRUPT target if the signal was in fact an interrupt. The other
388: * three termination signals are more of a "get out *now*" command.
389: */
390: if (signo == SIGINT) {
1.2 deraadt 391: JobInterrupt(TRUE, signo);
1.1 deraadt 392: } else if ((signo == SIGHUP) || (signo == SIGTERM) || (signo == SIGQUIT)) {
1.2 deraadt 393: JobInterrupt(FALSE, signo);
1.1 deraadt 394: }
1.6 millert 395:
1.1 deraadt 396: /*
397: * Leave gracefully if SIGQUIT, rather than core dumping.
398: */
399: if (signo == SIGQUIT) {
400: Finish(0);
401: }
1.6 millert 402:
1.1 deraadt 403: /*
404: * Send ourselves the signal now we've given the message to everyone else.
405: * Note we block everything else possible while we're getting the signal.
406: * This ensures that all our jobs get continued when we wake up before
407: * we take any other signal.
408: */
1.3 niklas 409: sigemptyset(&nmask);
410: sigaddset(&nmask, signo);
411: sigprocmask(SIG_SETMASK, &nmask, &omask);
1.10 deraadt 412: memset(&act, 0, sizeof act);
1.3 niklas 413: act.sa_handler = SIG_DFL;
414: sigemptyset(&act.sa_mask);
415: act.sa_flags = 0;
416: sigaction(signo, &act, NULL);
1.2 deraadt 417:
418: if (DEBUG(JOB)) {
419: (void) fprintf(stdout,
420: "JobPassSig passing signal to self, mask = %x.\n",
421: ~0 & ~(1 << (signo-1)));
422: (void) fflush(stdout);
423: }
424: (void) signal(signo, SIG_DFL);
1.1 deraadt 425:
1.2 deraadt 426: (void) KILL(getpid(), signo);
1.1 deraadt 427:
428: signo = SIGCONT;
1.29 ! espie 429: Lst_ForEach(&jobs, JobCondPassSig, &signo);
1.1 deraadt 430:
1.2 deraadt 431: (void) sigprocmask(SIG_SETMASK, &omask, NULL);
1.3 niklas 432: sigprocmask(SIG_SETMASK, &omask, NULL);
433: act.sa_handler = JobPassSig;
434: sigaction(signo, &act, NULL);
1.1 deraadt 435: }
436:
437: /*-
438: *-----------------------------------------------------------------------
439: * JobCmpPid --
440: * Compare the pid of the job with the given pid and return 0 if they
441: * are equal. This function is called from Job_CatchChildren via
442: * Lst_Find to find the job descriptor of the finished job.
443: *
444: * Results:
445: * 0 if the pid's match
446: *
447: * Side Effects:
448: * None
449: *-----------------------------------------------------------------------
450: */
451: static int
1.2 deraadt 452: JobCmpPid(job, pid)
1.28 espie 453: void *job; /* job to examine */
454: void *pid; /* process id desired */
1.1 deraadt 455: {
1.28 espie 456: return *(int *)pid - ((Job *)job)->pid;
1.1 deraadt 457: }
458:
1.2 deraadt 459: #ifdef REMOTE
460: /*-
461: *-----------------------------------------------------------------------
462: * JobCmpRmtID --
463: * Compare the rmtID of the job with the given rmtID and return 0 if they
1.6 millert 464: * are equal.
1.2 deraadt 465: *
466: * Results:
467: * 0 if the rmtID's match
468: *
469: * Side Effects:
470: * None.
471: *-----------------------------------------------------------------------
472: */
473: static int
474: JobCmpRmtID(job, rmtID)
1.28 espie 475: void *job; /* job to examine */
476: void *rmtID; /* remote id desired */
1.2 deraadt 477: {
1.24 espie 478: return *(int *) rmtID - *(int *) job->rmtID;
1.2 deraadt 479: }
480: #endif
481:
1.1 deraadt 482: /*-
483: *-----------------------------------------------------------------------
484: * JobPrintCommand --
485: * Put out another command for the given job. If the command starts
486: * with an @ or a - we process it specially. In the former case,
487: * so long as the -s and -n flags weren't given to make, we stick
488: * a shell-specific echoOff command in the script. In the latter,
489: * we ignore errors for the entire job, unless the shell has error
490: * control.
491: * If the command is just "..." we take all future commands for this
492: * job to be commands to be executed once the entire graph has been
493: * made and return non-zero to signal that the end of the commands
494: * was reached. These commands are later attached to the postCommands
495: * node and executed by Job_End when all things are done.
496: * This function is called from JobStart via Lst_ForEach.
497: *
498: * Results:
1.26 espie 499: * Always 1, unless the command was "..."
1.1 deraadt 500: *
501: * Side Effects:
502: * If the command begins with a '-' and the shell has no error control,
503: * the JOB_IGNERR flag is set in the job descriptor.
504: * If the command is "..." and we're not ignoring such things,
505: * tailCmds is set to the successor node of the cmd.
506: * numCommands is incremented if the command is actually printed.
507: *-----------------------------------------------------------------------
508: */
509: static int
1.2 deraadt 510: JobPrintCommand(cmdp, jobp)
1.28 espie 511: void *cmdp; /* command string to print */
512: void *jobp; /* job for which to print it */
1.1 deraadt 513: {
514: Boolean noSpecials; /* true if we shouldn't worry about
515: * inserting special commands into
516: * the input stream. */
517: Boolean shutUp = FALSE; /* true if we put a no echo command
518: * into the command file */
519: Boolean errOff = FALSE; /* true if we turned error checking
520: * off before printing the command
521: * and need to turn it back on */
522: char *cmdTemplate; /* Template to use when printing the
523: * command */
524: char *cmdStart; /* Start of expanded command */
525: LstNode cmdNode; /* Node for replacing the command */
526: char *cmd = (char *) cmdp;
1.6 millert 527: Job *job = (Job *) jobp;
1.1 deraadt 528:
1.2 deraadt 529: noSpecials = (noExecute && !(job->node->type & OP_MAKE));
1.1 deraadt 530:
1.2 deraadt 531: if (strcmp(cmd, "...") == 0) {
1.6 millert 532: job->node->type |= OP_SAVE_CMDS;
1.1 deraadt 533: if ((job->flags & JOB_IGNDOTS) == 0) {
1.29 ! espie 534: job->tailCmds = Lst_Succ(Lst_Member(&job->node->commands, cmd));
1.26 espie 535: return 0;
1.2 deraadt 536: }
1.26 espie 537: return 1;
1.1 deraadt 538: }
539:
1.2 deraadt 540: #define DBPRINTF(fmt, arg) if (DEBUG(JOB)) { \
541: (void) fprintf(stdout, fmt, arg); \
542: (void) fflush(stdout); \
543: } \
544: (void) fprintf(job->cmdFILE, fmt, arg); \
545: (void) fflush(job->cmdFILE);
1.1 deraadt 546:
547: numCommands += 1;
548:
549: /*
550: * For debugging, we replace each command with the result of expanding
551: * the variables in the command.
552: */
1.29 ! espie 553: cmdNode = Lst_Member(&job->node->commands, cmd);
1.16 espie 554: cmdStart = cmd = Var_Subst(cmd, job->node, FALSE);
1.25 espie 555: Lst_Replace(cmdNode, cmdStart);
1.1 deraadt 556:
557: cmdTemplate = "%s\n";
558:
559: /*
560: * Check for leading @' and -'s to control echoing and error checking.
561: */
562: while (*cmd == '@' || *cmd == '-') {
563: if (*cmd == '@') {
564: shutUp = TRUE;
565: } else {
566: errOff = TRUE;
567: }
568: cmd++;
569: }
570:
571: while (isspace((unsigned char) *cmd))
572: cmd++;
573:
574: if (shutUp) {
1.2 deraadt 575: if (!(job->flags & JOB_SILENT) && !noSpecials &&
1.1 deraadt 576: commandShell->hasEchoCtl) {
1.2 deraadt 577: DBPRINTF("%s\n", commandShell->echoOff);
1.1 deraadt 578: } else {
579: shutUp = FALSE;
580: }
581: }
582:
583: if (errOff) {
1.2 deraadt 584: if ( !(job->flags & JOB_IGNERR) && !noSpecials) {
1.1 deraadt 585: if (commandShell->hasErrCtl) {
586: /*
587: * we don't want the error-control commands showing
588: * up either, so we turn off echoing while executing
589: * them. We could put another field in the shell
590: * structure to tell JobDoOutput to look for this
591: * string too, but why make it any more complex than
592: * it already is?
593: */
1.2 deraadt 594: if (!(job->flags & JOB_SILENT) && !shutUp &&
1.1 deraadt 595: commandShell->hasEchoCtl) {
1.2 deraadt 596: DBPRINTF("%s\n", commandShell->echoOff);
597: DBPRINTF("%s\n", commandShell->ignErr);
598: DBPRINTF("%s\n", commandShell->echoOn);
1.1 deraadt 599: } else {
1.2 deraadt 600: DBPRINTF("%s\n", commandShell->ignErr);
1.1 deraadt 601: }
602: } else if (commandShell->ignErr &&
1.2 deraadt 603: (*commandShell->ignErr != '\0'))
1.1 deraadt 604: {
605: /*
606: * The shell has no error control, so we need to be
607: * weird to get it to ignore any errors from the command.
608: * If echoing is turned on, we turn it off and use the
609: * errCheck template to echo the command. Leave echoing
610: * off so the user doesn't see the weirdness we go through
611: * to ignore errors. Set cmdTemplate to use the weirdness
612: * instead of the simple "%s\n" template.
613: */
1.2 deraadt 614: if (!(job->flags & JOB_SILENT) && !shutUp &&
1.1 deraadt 615: commandShell->hasEchoCtl) {
1.2 deraadt 616: DBPRINTF("%s\n", commandShell->echoOff);
617: DBPRINTF(commandShell->errCheck, cmd);
1.1 deraadt 618: shutUp = TRUE;
619: }
620: cmdTemplate = commandShell->ignErr;
621: /*
1.6 millert 622: * The error ignoration (hee hee) is already taken care
1.1 deraadt 623: * of by the ignErr template, so pretend error checking
624: * is still on.
625: */
626: errOff = FALSE;
627: } else {
628: errOff = FALSE;
629: }
630: } else {
631: errOff = FALSE;
632: }
633: }
1.6 millert 634:
1.2 deraadt 635: DBPRINTF(cmdTemplate, cmd);
1.6 millert 636:
1.1 deraadt 637: if (errOff) {
638: /*
639: * If echoing is already off, there's no point in issuing the
640: * echoOff command. Otherwise we issue it and pretend it was on
641: * for the whole command...
642: */
643: if (!shutUp && !(job->flags & JOB_SILENT) && commandShell->hasEchoCtl){
1.2 deraadt 644: DBPRINTF("%s\n", commandShell->echoOff);
1.1 deraadt 645: shutUp = TRUE;
646: }
1.2 deraadt 647: DBPRINTF("%s\n", commandShell->errCheck);
1.1 deraadt 648: }
649: if (shutUp) {
1.2 deraadt 650: DBPRINTF("%s\n", commandShell->echoOn);
1.1 deraadt 651: }
1.26 espie 652: return 1;
1.1 deraadt 653: }
654:
655: /*-
656: *-----------------------------------------------------------------------
657: * JobSaveCommand --
658: * Save a command to be executed when everything else is done.
659: * Callback function for JobFinish...
660: *
661: * Side Effects:
662: * The command is tacked onto the end of postCommands's commands list.
663: *
664: *-----------------------------------------------------------------------
665: */
1.27 espie 666: static void
1.2 deraadt 667: JobSaveCommand(cmd, gn)
1.28 espie 668: void *cmd;
669: void *gn;
1.1 deraadt 670: {
1.28 espie 671: char *result;
672:
673: result = Var_Subst((char *)cmd, (GNode *)gn, FALSE);
1.29 ! espie 674: Lst_AtEnd(&postCommands->commands, result);
1.2 deraadt 675: }
676:
677:
678: /*-
679: *-----------------------------------------------------------------------
680: * JobClose --
681: * Called to close both input and output pipes when a job is finished.
682: *
683: * Results:
684: * Nada
685: *
686: * Side Effects:
687: * The file descriptors associated with the job are closed.
688: *
689: *-----------------------------------------------------------------------
690: */
691: static void
692: JobClose(job)
693: Job *job;
694: {
695: if (usePipes) {
696: #ifdef RMT_WILL_WATCH
697: Rmt_Ignore(job->inPipe);
698: #else
1.8 deraadt 699: FD_CLR(job->inPipe, outputsp);
1.2 deraadt 700: #endif
701: if (job->outPipe != job->inPipe) {
702: (void) close(job->outPipe);
703: }
704: JobDoOutput(job, TRUE);
705: (void) close(job->inPipe);
706: } else {
707: (void) close(job->outFd);
708: JobDoOutput(job, TRUE);
709: }
1.1 deraadt 710: }
711:
712: /*-
713: *-----------------------------------------------------------------------
714: * JobFinish --
715: * Do final processing for the given job including updating
716: * parents and starting new jobs as available/necessary. Note
717: * that we pay no attention to the JOB_IGNERR flag here.
718: * This is because when we're called because of a noexecute flag
719: * or something, jstat.w_status is 0 and when called from
720: * Job_CatchChildren, the status is zeroed if it s/b ignored.
721: *
722: * Results:
723: * None
724: *
725: * Side Effects:
726: * Some nodes may be put on the toBeMade queue.
727: * Final commands for the job are placed on postCommands.
728: *
1.6 millert 729: * If we got an error and are aborting (aborting == ABORT_ERROR) and
1.1 deraadt 730: * the job list is now empty, we are done for the day.
1.6 millert 731: * If we recognized an error (errors !=0), we set the aborting flag
1.1 deraadt 732: * to ABORT_ERROR so no more jobs will be started.
733: *-----------------------------------------------------------------------
734: */
735: /*ARGSUSED*/
736: static void
1.2 deraadt 737: JobFinish(job, status)
738: Job *job; /* job to finish */
739: int *status; /* sub-why job went away */
740: {
741: Boolean done;
742:
743: if ((WIFEXITED(*status) &&
744: (((WEXITSTATUS(*status) != 0) && !(job->flags & JOB_IGNERR)))) ||
745: (WIFSIGNALED(*status) && (WTERMSIG(*status) != SIGCONT)))
1.1 deraadt 746: {
747: /*
748: * If it exited non-zero and either we're doing things our
749: * way or we're not ignoring errors, the job is finished.
750: * Similarly, if the shell died because of a signal
751: * the job is also finished. In these
752: * cases, finish out the job's output before printing the exit
753: * status...
754: */
1.2 deraadt 755: #ifdef REMOTE
756: KILL(job->pid, SIGCONT);
757: #endif
758: JobClose(job);
1.1 deraadt 759: if (job->cmdFILE != NULL && job->cmdFILE != stdout) {
1.2 deraadt 760: (void) fclose(job->cmdFILE);
1.1 deraadt 761: }
762: done = TRUE;
1.2 deraadt 763: #ifdef REMOTE
764: if (job->flags & JOB_REMOTE)
765: Rmt_Done(job->rmtID, job->node);
766: #endif
767: } else if (WIFEXITED(*status)) {
1.1 deraadt 768: /*
769: * Deal with ignored errors in -B mode. We need to print a message
770: * telling of the ignored error as well as setting status.w_status
771: * to 0 so the next command gets run. To do this, we set done to be
1.2 deraadt 772: * TRUE if in -B mode and the job exited non-zero.
773: */
774: done = WEXITSTATUS(*status) != 0;
1.6 millert 775: /*
1.2 deraadt 776: * Old comment said: "Note we don't
1.1 deraadt 777: * want to close down any of the streams until we know we're at the
1.2 deraadt 778: * end."
779: * But we do. Otherwise when are we going to print the rest of the
780: * stuff?
781: */
782: JobClose(job);
783: #ifdef REMOTE
784: if (job->flags & JOB_REMOTE)
785: Rmt_Done(job->rmtID, job->node);
786: #endif /* REMOTE */
1.1 deraadt 787: } else {
788: /*
789: * No need to close things down or anything.
790: */
791: done = FALSE;
792: }
1.6 millert 793:
1.1 deraadt 794: if (done ||
1.2 deraadt 795: WIFSTOPPED(*status) ||
796: (WIFSIGNALED(*status) && (WTERMSIG(*status) == SIGCONT)) ||
1.1 deraadt 797: DEBUG(JOB))
798: {
799: FILE *out;
1.6 millert 800:
1.2 deraadt 801: if (compatMake && !usePipes && (job->flags & JOB_IGNERR)) {
1.1 deraadt 802: /*
803: * If output is going to a file and this job is ignoring
804: * errors, arrange to have the exit status sent to the
805: * output file as well.
806: */
1.2 deraadt 807: out = fdopen(job->outFd, "w");
1.1 deraadt 808: } else {
809: out = stdout;
810: }
811:
1.2 deraadt 812: if (WIFEXITED(*status)) {
813: if (DEBUG(JOB)) {
814: (void) fprintf(stdout, "Process %d exited.\n", job->pid);
815: (void) fflush(stdout);
816: }
817: if (WEXITSTATUS(*status) != 0) {
1.1 deraadt 818: if (usePipes && job->node != lastNode) {
1.2 deraadt 819: MESSAGE(out, job->node);
1.1 deraadt 820: lastNode = job->node;
821: }
1.2 deraadt 822: (void) fprintf(out, "*** Error code %d%s\n",
823: WEXITSTATUS(*status),
824: (job->flags & JOB_IGNERR) ? "(ignored)" : "");
1.1 deraadt 825:
826: if (job->flags & JOB_IGNERR) {
1.2 deraadt 827: *status = 0;
1.1 deraadt 828: }
829: } else if (DEBUG(JOB)) {
830: if (usePipes && job->node != lastNode) {
1.2 deraadt 831: MESSAGE(out, job->node);
1.1 deraadt 832: lastNode = job->node;
833: }
1.2 deraadt 834: (void) fprintf(out, "*** Completed successfully\n");
835: }
836: } else if (WIFSTOPPED(*status)) {
837: if (DEBUG(JOB)) {
838: (void) fprintf(stdout, "Process %d stopped.\n", job->pid);
839: (void) fflush(stdout);
1.1 deraadt 840: }
841: if (usePipes && job->node != lastNode) {
1.2 deraadt 842: MESSAGE(out, job->node);
1.1 deraadt 843: lastNode = job->node;
844: }
1.2 deraadt 845: if (!(job->flags & JOB_REMIGRATE)) {
1.6 millert 846: (void) fprintf(out, "*** Stopped -- signal %d\n",
847: WSTOPSIG(*status));
1.1 deraadt 848: }
849: job->flags |= JOB_RESUME;
1.29 ! espie 850: Lst_AtEnd(&stoppedJobs, job);
1.2 deraadt 851: #ifdef REMOTE
852: if (job->flags & JOB_REMIGRATE)
853: JobRestart(job);
854: #endif
855: (void) fflush(out);
1.1 deraadt 856: return;
1.2 deraadt 857: } else if (WTERMSIG(*status) == SIGCONT) {
1.1 deraadt 858: /*
859: * If the beastie has continued, shift the Job from the stopped
1.6 millert 860: * list to the running one (or re-stop it if concurrency is
1.1 deraadt 861: * exceeded) and go and get another child.
862: */
863: if (job->flags & (JOB_RESUME|JOB_REMIGRATE|JOB_RESTART)) {
864: if (usePipes && job->node != lastNode) {
1.2 deraadt 865: MESSAGE(out, job->node);
1.1 deraadt 866: lastNode = job->node;
867: }
1.2 deraadt 868: (void) fprintf(out, "*** Continued\n");
1.1 deraadt 869: }
1.2 deraadt 870: if (!(job->flags & JOB_CONTINUING)) {
871: if (DEBUG(JOB)) {
872: (void) fprintf(stdout,
873: "Warning: process %d was not continuing.\n",
874: job->pid);
875: (void) fflush(stdout);
876: }
877: #ifdef notdef
878: /*
879: * We don't really want to restart a job from scratch just
880: * because it continued, especially not without killing the
881: * continuing process! That's why this is ifdef'ed out.
882: * FD - 9/17/90
883: */
1.1 deraadt 884: JobRestart(job);
1.2 deraadt 885: #endif
886: }
887: job->flags &= ~JOB_CONTINUING;
1.29 ! espie 888: Lst_AtEnd(&jobs, job);
1.2 deraadt 889: nJobs += 1;
890: if (!(job->flags & JOB_REMOTE)) {
891: if (DEBUG(JOB)) {
892: (void) fprintf(stdout,
893: "Process %d is continuing locally.\n",
894: job->pid);
895: (void) fflush(stdout);
896: }
897: nLocal += 1;
1.1 deraadt 898: }
1.2 deraadt 899: if (nJobs == maxJobs) {
900: jobFull = TRUE;
901: if (DEBUG(JOB)) {
902: (void) fprintf(stdout, "Job queue is full.\n");
903: (void) fflush(stdout);
904: }
905: }
906: (void) fflush(out);
907: return;
1.1 deraadt 908: } else {
909: if (usePipes && job->node != lastNode) {
1.2 deraadt 910: MESSAGE(out, job->node);
1.1 deraadt 911: lastNode = job->node;
912: }
1.2 deraadt 913: (void) fprintf(out, "*** Signal %d\n", WTERMSIG(*status));
1.1 deraadt 914: }
915:
1.2 deraadt 916: (void) fflush(out);
1.1 deraadt 917: }
918:
919: /*
920: * Now handle the -B-mode stuff. If the beast still isn't finished,
921: * try and restart the job on the next command. If JobStart says it's
922: * ok, it's ok. If there's an error, this puppy is done.
923: */
1.2 deraadt 924: if (compatMake && (WIFEXITED(*status) &&
1.29 ! espie 925: !Lst_IsAtEnd(&job->node->commands))) {
1.2 deraadt 926: switch (JobStart(job->node, job->flags & JOB_IGNDOTS, job)) {
927: case JOB_RUNNING:
928: done = FALSE;
929: break;
930: case JOB_ERROR:
931: done = TRUE;
932: W_SETEXITSTATUS(status, 1);
933: break;
934: case JOB_FINISHED:
935: /*
936: * If we got back a JOB_FINISHED code, JobStart has already
937: * called Make_Update and freed the job descriptor. We set
938: * done to false here to avoid fake cycles and double frees.
939: * JobStart needs to do the update so we can proceed up the
940: * graph when given the -n flag..
941: */
942: done = FALSE;
943: break;
1.1 deraadt 944: }
945: } else {
946: done = TRUE;
947: }
1.6 millert 948:
1.1 deraadt 949:
950: if (done &&
951: (aborting != ABORT_ERROR) &&
952: (aborting != ABORT_INTERRUPT) &&
1.2 deraadt 953: (*status == 0))
1.1 deraadt 954: {
955: /*
956: * As long as we aren't aborting and the job didn't return a non-zero
957: * status that we shouldn't ignore, we call Make_Update to update
958: * the parents. In addition, any saved commands for the node are placed
959: * on the .END target.
960: */
1.27 espie 961: Lst_ForEachFrom(job->tailCmds, JobSaveCommand, job->node);
1.1 deraadt 962: job->node->made = MADE;
1.2 deraadt 963: Make_Update(job->node);
1.28 espie 964: free(job);
1.5 briggs 965: } else if (*status != 0) {
1.1 deraadt 966: errors += 1;
1.28 espie 967: free(job);
1.1 deraadt 968: }
969:
1.2 deraadt 970: JobRestartJobs();
1.1 deraadt 971:
972: /*
973: * Set aborting if any error.
974: */
975: if (errors && !keepgoing && (aborting != ABORT_INTERRUPT)) {
976: /*
977: * If we found any errors in this batch of children and the -k flag
978: * wasn't given, we set the aborting flag so no more jobs get
979: * started.
980: */
981: aborting = ABORT_ERROR;
982: }
1.6 millert 983:
1.22 espie 984: if ((aborting == ABORT_ERROR) && Job_Empty())
1.1 deraadt 985: /*
986: * If we are aborting and the job table is now empty, we finish.
987: */
1.2 deraadt 988: Finish(errors);
1.1 deraadt 989: }
990:
991: /*-
992: *-----------------------------------------------------------------------
993: * Job_Touch --
994: * Touch the given target. Called by JobStart when the -t flag was
995: * given
996: *
997: * Results:
998: * None
999: *
1000: * Side Effects:
1001: * The data modification of the file is changed. In addition, if the
1002: * file did not exist, it is created.
1003: *-----------------------------------------------------------------------
1004: */
1005: void
1.2 deraadt 1006: Job_Touch(gn, silent)
1.1 deraadt 1007: GNode *gn; /* the node of the file to touch */
1008: Boolean silent; /* TRUE if should not print messages */
1009: {
1010: int streamID; /* ID of stream opened to do the touch */
1.3 niklas 1011: struct utimbuf times; /* Times for utime() call */
1.1 deraadt 1012:
1013: if (gn->type & (OP_JOIN|OP_USE|OP_EXEC|OP_OPTIONAL)) {
1014: /*
1015: * .JOIN, .USE, .ZEROTIME and .OPTIONAL targets are "virtual" targets
1016: * and, as such, shouldn't really be created.
1017: */
1018: return;
1019: }
1.6 millert 1020:
1.1 deraadt 1021: if (!silent) {
1.2 deraadt 1022: (void) fprintf(stdout, "touch %s\n", gn->name);
1023: (void) fflush(stdout);
1.1 deraadt 1024: }
1025:
1026: if (noExecute) {
1027: return;
1028: }
1029:
1030: if (gn->type & OP_ARCHV) {
1.2 deraadt 1031: Arch_Touch(gn);
1.1 deraadt 1032: } else if (gn->type & OP_LIB) {
1.2 deraadt 1033: Arch_TouchLib(gn);
1.1 deraadt 1034: } else {
1035: char *file = gn->path ? gn->path : gn->name;
1036:
1.3 niklas 1037: times.actime = times.modtime = now;
1038: if (utime(file, ×) < 0){
1.2 deraadt 1039: streamID = open(file, O_RDWR | O_CREAT, 0666);
1.1 deraadt 1040:
1041: if (streamID >= 0) {
1042: char c;
1043:
1044: /*
1045: * Read and write a byte to the file to change the
1046: * modification time, then close the file.
1047: */
1048: if (read(streamID, &c, 1) == 1) {
1.11 millert 1049: (void) lseek(streamID, 0, SEEK_SET);
1.2 deraadt 1050: (void) write(streamID, &c, 1);
1.1 deraadt 1051: }
1.6 millert 1052:
1.2 deraadt 1053: (void) close(streamID);
1054: } else {
1055: (void) fprintf(stdout, "*** couldn't touch %s: %s",
1056: file, strerror(errno));
1057: (void) fflush(stdout);
1058: }
1.1 deraadt 1059: }
1060: }
1061: }
1062:
1063: /*-
1064: *-----------------------------------------------------------------------
1065: * Job_CheckCommands --
1.6 millert 1066: * Make sure the given node has all the commands it needs.
1.1 deraadt 1067: *
1068: * Results:
1069: * TRUE if the commands list is/was ok.
1070: *
1071: * Side Effects:
1072: * The node will have commands from the .DEFAULT rule added to it
1073: * if it needs them.
1074: *-----------------------------------------------------------------------
1075: */
1076: Boolean
1.2 deraadt 1077: Job_CheckCommands(gn, abortProc)
1.1 deraadt 1078: GNode *gn; /* The target whose commands need
1079: * verifying */
1.6 millert 1080: void (*abortProc) __P((char *, ...));
1.1 deraadt 1081: /* Function to abort with message */
1082: {
1.29 ! espie 1083: if (OP_NOP(gn->type) && Lst_IsEmpty(&gn->commands) &&
1.1 deraadt 1084: (gn->type & OP_LIB) == 0) {
1085: /*
1086: * No commands. Look for .DEFAULT rule from which we might infer
1.6 millert 1087: * commands
1.1 deraadt 1088: */
1.29 ! espie 1089: if ((DEFAULT != NULL) && !Lst_IsEmpty(&DEFAULT->commands)) {
1.1 deraadt 1090: /*
1091: * Make only looks for a .DEFAULT if the node was never the
1092: * target of an operator, so that's what we do too. If
1093: * a .DEFAULT was given, we substitute its commands for gn's
1094: * commands and set the IMPSRC variable to be the target's name
1095: * The DEFAULT node acts like a transformation rule, in that
1096: * gn also inherits any attributes or sources attached to
1097: * .DEFAULT itself.
1098: */
1099: Make_HandleUse(DEFAULT, gn);
1.15 espie 1100: Var_Set(IMPSRC, Var_Value(TARGET, gn), gn);
1.2 deraadt 1101: } else if (Dir_MTime(gn) == 0) {
1.1 deraadt 1102: /*
1103: * The node wasn't the target of an operator we have no .DEFAULT
1104: * rule to go on and the target doesn't already exist. There's
1105: * nothing more we can do for this branch. If the -k flag wasn't
1106: * given, we stop in our tracks, otherwise we just don't update
1.6 millert 1107: * this node's parents so they never get examined.
1.1 deraadt 1108: */
1.2 deraadt 1109: static const char msg[] = "make: don't know how to make";
1110:
1.1 deraadt 1111: if (gn->type & OP_OPTIONAL) {
1.2 deraadt 1112: (void) fprintf(stdout, "%s %s(ignored)\n", msg, gn->name);
1113: (void) fflush(stdout);
1.1 deraadt 1114: } else if (keepgoing) {
1.2 deraadt 1115: (void) fprintf(stdout, "%s %s(continuing)\n", msg, gn->name);
1116: (void) fflush(stdout);
1117: return FALSE;
1.1 deraadt 1118: } else {
1.2 deraadt 1119: (*abortProc)("%s %s. Stop", msg, gn->name);
1120: return FALSE;
1.1 deraadt 1121: }
1122: }
1123: }
1.2 deraadt 1124: return TRUE;
1.1 deraadt 1125: }
1126: #ifdef RMT_WILL_WATCH
1127: /*-
1128: *-----------------------------------------------------------------------
1129: * JobLocalInput --
1130: * Handle a pipe becoming readable. Callback function for Rmt_Watch
1131: *
1132: * Results:
1133: * None
1134: *
1135: * Side Effects:
1136: * JobDoOutput is called.
1.6 millert 1137: *
1.1 deraadt 1138: *-----------------------------------------------------------------------
1139: */
1140: /*ARGSUSED*/
1141: static void
1142: JobLocalInput(stream, job)
1.6 millert 1143: int stream; /* Stream that's ready (ignored) */
1.1 deraadt 1144: Job *job; /* Job to which the stream belongs */
1145: {
1146: JobDoOutput(job, FALSE);
1147: }
1148: #endif /* RMT_WILL_WATCH */
1149:
1150: /*-
1151: *-----------------------------------------------------------------------
1152: * JobExec --
1153: * Execute the shell for the given job. Called from JobStart and
1154: * JobRestart.
1155: *
1156: * Results:
1157: * None.
1158: *
1159: * Side Effects:
1160: * A shell is executed, outputs is altered and the Job structure added
1161: * to the job table.
1162: *
1163: *-----------------------------------------------------------------------
1164: */
1165: static void
1166: JobExec(job, argv)
1167: Job *job; /* Job to execute */
1168: char **argv;
1169: {
1170: int cpid; /* ID of new child */
1.6 millert 1171:
1.1 deraadt 1172: if (DEBUG(JOB)) {
1173: int i;
1.6 millert 1174:
1.2 deraadt 1175: (void) fprintf(stdout, "Running %s %sly\n", job->node->name,
1176: job->flags&JOB_REMOTE?"remote":"local");
1177: (void) fprintf(stdout, "\tCommand: ");
1178: for (i = 0; argv[i] != NULL; i++) {
1179: (void) fprintf(stdout, "%s ", argv[i]);
1.1 deraadt 1180: }
1.2 deraadt 1181: (void) fprintf(stdout, "\n");
1182: (void) fflush(stdout);
1.1 deraadt 1183: }
1.6 millert 1184:
1.1 deraadt 1185: /*
1186: * Some jobs produce no output and it's disconcerting to have
1.6 millert 1187: * no feedback of their running (since they produce no output, the
1.1 deraadt 1188: * banner with their name in it never appears). This is an attempt to
1189: * provide that feedback, even if nothing follows it.
1190: */
1191: if ((lastNode != job->node) && (job->flags & JOB_FIRST) &&
1.2 deraadt 1192: !(job->flags & JOB_SILENT)) {
1193: MESSAGE(stdout, job->node);
1.1 deraadt 1194: lastNode = job->node;
1195: }
1.6 millert 1196:
1.1 deraadt 1197: #ifdef RMT_NO_EXEC
1198: if (job->flags & JOB_REMOTE) {
1199: goto jobExecFinish;
1200: }
1201: #endif /* RMT_NO_EXEC */
1202:
1.2 deraadt 1203: if ((cpid = vfork()) == -1) {
1204: Punt("Cannot fork");
1.1 deraadt 1205: } else if (cpid == 0) {
1206:
1207: /*
1208: * Must duplicate the input stream down to the child's input and
1.6 millert 1209: * reset it to the beginning (again). Since the stream was marked
1.1 deraadt 1210: * close-on-exec, we must clear that bit in the new input.
1211: */
1.2 deraadt 1212: if (dup2(FILENO(job->cmdFILE), 0) == -1)
1213: Punt("Cannot dup2: %s", strerror(errno));
1214: (void) fcntl(0, F_SETFD, 0);
1.11 millert 1215: (void) lseek(0, 0, SEEK_SET);
1.6 millert 1216:
1.1 deraadt 1217: if (usePipes) {
1218: /*
1219: * Set up the child's output to be routed through the pipe
1220: * we've created for it.
1221: */
1.2 deraadt 1222: if (dup2(job->outPipe, 1) == -1)
1223: Punt("Cannot dup2: %s", strerror(errno));
1.1 deraadt 1224: } else {
1225: /*
1226: * We're capturing output in a file, so we duplicate the
1227: * descriptor to the temporary file into the standard
1228: * output.
1229: */
1.2 deraadt 1230: if (dup2(job->outFd, 1) == -1)
1231: Punt("Cannot dup2: %s", strerror(errno));
1.1 deraadt 1232: }
1233: /*
1234: * The output channels are marked close on exec. This bit was
1.6 millert 1235: * duplicated by the dup2 (on some systems), so we have to clear
1.1 deraadt 1236: * it before routing the shell's error output to the same place as
1237: * its standard output.
1238: */
1.2 deraadt 1239: (void) fcntl(1, F_SETFD, 0);
1240: if (dup2(1, 2) == -1)
1241: Punt("Cannot dup2: %s", strerror(errno));
1.1 deraadt 1242:
1243: #ifdef USE_PGRP
1244: /*
1245: * We want to switch the child into a different process family so
1246: * we can kill it and all its descendants in one fell swoop,
1247: * by killing its process family, but not commit suicide.
1248: */
1.2 deraadt 1249: # if defined(SYSV)
1250: (void) setsid();
1251: # else
1252: (void) setpgid(0, getpid());
1253: # endif
1254: #endif /* USE_PGRP */
1.1 deraadt 1255:
1.2 deraadt 1256: #ifdef REMOTE
1257: if (job->flags & JOB_REMOTE) {
1258: Rmt_Exec(shellPath, argv, FALSE);
1.6 millert 1259: } else
1.2 deraadt 1260: #endif /* REMOTE */
1261: (void) execv(shellPath, argv);
1262:
1263: (void) write(2, "Could not execute shell\n",
1264: sizeof("Could not execute shell"));
1265: _exit(1);
1.1 deraadt 1266: } else {
1.2 deraadt 1267: #ifdef REMOTE
1.8 deraadt 1268: int omask = sigblock(sigmask(SIGCHLD));
1.2 deraadt 1269: #endif
1.1 deraadt 1270: job->pid = cpid;
1271:
1272: if (usePipes && (job->flags & JOB_FIRST) ) {
1273: /*
1274: * The first time a job is run for a node, we set the current
1275: * position in the buffer to the beginning and mark another
1276: * stream to watch in the outputs mask
1277: */
1278: job->curPos = 0;
1.6 millert 1279:
1.1 deraadt 1280: #ifdef RMT_WILL_WATCH
1281: Rmt_Watch(job->inPipe, JobLocalInput, job);
1282: #else
1.8 deraadt 1283: if (outputsp == NULL || job->inPipe > outputsn) {
1284: int bytes = howmany(job->inPipe+1, NFDBITS) * sizeof(fd_mask);
1285: int obytes = howmany(outputsn+1, NFDBITS) * sizeof(fd_mask);
1286:
1.9 flipk 1287: if (outputsp == NULL || obytes != bytes) {
1.8 deraadt 1288: outputsp = realloc(outputsp, bytes);
1289: if (outputsp == NULL)
1290: return;
1291: memset(outputsp + obytes, 0, bytes - obytes);
1292: }
1293: outputsn = job->inPipe;
1294: }
1295: FD_SET(job->inPipe, outputsp);
1.1 deraadt 1296: #endif /* RMT_WILL_WATCH */
1297: }
1298:
1299: if (job->flags & JOB_REMOTE) {
1.2 deraadt 1300: #ifndef REMOTE
1.1 deraadt 1301: job->rmtID = 0;
1.2 deraadt 1302: #else
1303: job->rmtID = Rmt_LastID(job->pid);
1304: #endif /* REMOTE */
1.1 deraadt 1305: } else {
1306: nLocal += 1;
1307: /*
1.2 deraadt 1308: * XXX: Used to not happen if REMOTE. Why?
1.1 deraadt 1309: */
1.2 deraadt 1310: if (job->cmdFILE != NULL && job->cmdFILE != stdout) {
1311: (void) fclose(job->cmdFILE);
1.1 deraadt 1312: job->cmdFILE = NULL;
1313: }
1314: }
1.2 deraadt 1315: #ifdef REMOTE
1316: (void) sigsetmask(omask);
1317: #endif
1.1 deraadt 1318: }
1319:
1320: #ifdef RMT_NO_EXEC
1.6 millert 1321: jobExecFinish:
1.1 deraadt 1322: #endif
1323: /*
1324: * Now the job is actually running, add it to the table.
1325: */
1326: nJobs += 1;
1.29 ! espie 1327: Lst_AtEnd(&jobs, job);
1.1 deraadt 1328: if (nJobs == maxJobs) {
1329: jobFull = TRUE;
1330: }
1331: }
1332:
1333: /*-
1334: *-----------------------------------------------------------------------
1335: * JobMakeArgv --
1336: * Create the argv needed to execute the shell for a given job.
1.6 millert 1337: *
1.1 deraadt 1338: *
1339: * Results:
1340: *
1341: * Side Effects:
1342: *
1343: *-----------------------------------------------------------------------
1344: */
1345: static void
1346: JobMakeArgv(job, argv)
1347: Job *job;
1348: char **argv;
1349: {
1350: int argc;
1351: static char args[10]; /* For merged arguments */
1.6 millert 1352:
1.1 deraadt 1353: argv[0] = shellName;
1354: argc = 1;
1355:
1356: if ((commandShell->exit && (*commandShell->exit != '-')) ||
1357: (commandShell->echo && (*commandShell->echo != '-')))
1358: {
1359: /*
1360: * At least one of the flags doesn't have a minus before it, so
1361: * merge them together. Have to do this because the *(&(@*#*&#$#
1362: * Bourne shell thinks its second argument is a file to source.
1363: * Grrrr. Note the ten-character limitation on the combined arguments.
1364: */
1365: (void)sprintf(args, "-%s%s",
1366: ((job->flags & JOB_IGNERR) ? "" :
1367: (commandShell->exit ? commandShell->exit : "")),
1368: ((job->flags & JOB_SILENT) ? "" :
1369: (commandShell->echo ? commandShell->echo : "")));
1370:
1371: if (args[1]) {
1372: argv[argc] = args;
1373: argc++;
1374: }
1375: } else {
1376: if (!(job->flags & JOB_IGNERR) && commandShell->exit) {
1377: argv[argc] = commandShell->exit;
1378: argc++;
1379: }
1380: if (!(job->flags & JOB_SILENT) && commandShell->echo) {
1381: argv[argc] = commandShell->echo;
1382: argc++;
1383: }
1384: }
1.2 deraadt 1385: argv[argc] = NULL;
1.1 deraadt 1386: }
1387:
1388: /*-
1389: *-----------------------------------------------------------------------
1390: * JobRestart --
1.6 millert 1391: * Restart a job that stopped for some reason.
1.1 deraadt 1392: *
1393: * Results:
1394: * None.
1395: *
1396: * Side Effects:
1397: * jobFull will be set if the job couldn't be run.
1398: *
1399: *-----------------------------------------------------------------------
1400: */
1401: static void
1402: JobRestart(job)
1403: Job *job; /* Job to restart */
1404: {
1.2 deraadt 1405: #ifdef REMOTE
1406: int host;
1407: #endif
1.6 millert 1408:
1.1 deraadt 1409: if (job->flags & JOB_REMIGRATE) {
1.2 deraadt 1410: if (
1411: #ifdef REMOTE
1412: verboseRemigrates ||
1413: #endif
1414: DEBUG(JOB)) {
1415: (void) fprintf(stdout, "*** remigrating %x(%s)\n",
1416: job->pid, job->node->name);
1417: (void) fflush(stdout);
1.1 deraadt 1418: }
1.2 deraadt 1419:
1420: #ifdef REMOTE
1421: if (!Rmt_ReExport(job->pid, job->node, &host)) {
1422: if (verboseRemigrates || DEBUG(JOB)) {
1423: (void) fprintf(stdout, "*** couldn't migrate...\n");
1424: (void) fflush(stdout);
1425: }
1426: #endif
1427: if (nLocal != maxLocal) {
1.1 deraadt 1428: /*
1429: * Job cannot be remigrated, but there's room on the local
1430: * machine, so resume the job and note that another
1431: * local job has started.
1432: */
1.2 deraadt 1433: if (
1434: #ifdef REMOTE
1435: verboseRemigrates ||
1436: #endif
1437: DEBUG(JOB)) {
1438: (void) fprintf(stdout, "*** resuming on local machine\n");
1439: (void) fflush(stdout);
1440: }
1.1 deraadt 1441: KILL(job->pid, SIGCONT);
1442: nLocal +=1;
1.2 deraadt 1443: #ifdef REMOTE
1444: job->flags &= ~(JOB_REMIGRATE|JOB_RESUME|JOB_REMOTE);
1445: job->flags |= JOB_CONTINUING;
1446: #else
1.1 deraadt 1447: job->flags &= ~(JOB_REMIGRATE|JOB_RESUME);
1.2 deraadt 1448: #endif
1.1 deraadt 1449: } else {
1450: /*
1451: * Job cannot be restarted. Mark the table as full and
1452: * place the job back on the list of stopped jobs.
1453: */
1.2 deraadt 1454: if (
1455: #ifdef REMOTE
1456: verboseRemigrates ||
1457: #endif
1458: DEBUG(JOB)) {
1459: (void) fprintf(stdout, "*** holding\n");
1460: (void) fflush(stdout);
1461: }
1.29 ! espie 1462: Lst_AtFront(&stoppedJobs, job);
1.1 deraadt 1463: jobFull = TRUE;
1464: if (DEBUG(JOB)) {
1.2 deraadt 1465: (void) fprintf(stdout, "Job queue is full.\n");
1466: (void) fflush(stdout);
1.1 deraadt 1467: }
1468: return;
1.2 deraadt 1469: }
1470: #ifdef REMOTE
1471: } else {
1472: /*
1473: * Clear out the remigrate and resume flags. Set the continuing
1474: * flag so we know later on that the process isn't exiting just
1475: * because of a signal.
1476: */
1477: job->flags &= ~(JOB_REMIGRATE|JOB_RESUME);
1478: job->flags |= JOB_CONTINUING;
1479: job->rmtID = host;
1.1 deraadt 1480: }
1.2 deraadt 1481: #endif
1.6 millert 1482:
1.29 ! espie 1483: Lst_AtEnd(&jobs, job);
1.1 deraadt 1484: nJobs += 1;
1485: if (nJobs == maxJobs) {
1486: jobFull = TRUE;
1487: if (DEBUG(JOB)) {
1.2 deraadt 1488: (void) fprintf(stdout, "Job queue is full.\n");
1489: (void) fflush(stdout);
1.1 deraadt 1490: }
1491: }
1492: } else if (job->flags & JOB_RESTART) {
1493: /*
1494: * Set up the control arguments to the shell. This is based on the
1495: * flags set earlier for this job. If the JOB_IGNERR flag is clear,
1496: * the 'exit' flag of the commandShell is used to cause it to exit
1497: * upon receiving an error. If the JOB_SILENT flag is clear, the
1498: * 'echo' flag of the commandShell is used to get it to start echoing
1.6 millert 1499: * as soon as it starts processing commands.
1.1 deraadt 1500: */
1501: char *argv[4];
1.6 millert 1502:
1.1 deraadt 1503: JobMakeArgv(job, argv);
1.2 deraadt 1504:
1.1 deraadt 1505: if (DEBUG(JOB)) {
1.2 deraadt 1506: (void) fprintf(stdout, "Restarting %s...", job->node->name);
1507: (void) fflush(stdout);
1.1 deraadt 1508: }
1.2 deraadt 1509: #ifdef REMOTE
1510: if ((job->node->type&OP_NOEXPORT) ||
1.6 millert 1511: (nLocal < maxLocal && runLocalFirst)
1.2 deraadt 1512: # ifdef RMT_NO_EXEC
1513: || !Rmt_Export(shellPath, argv, job)
1514: # else
1515: || !Rmt_Begin(shellPath, argv, job->node)
1516: # endif
1517: #endif
1518: {
1519: if (((nLocal >= maxLocal) && !(job->flags & JOB_SPECIAL))) {
1.1 deraadt 1520: /*
1521: * Can't be exported and not allowed to run locally -- put it
1522: * back on the hold queue and mark the table full
1523: */
1524: if (DEBUG(JOB)) {
1.2 deraadt 1525: (void) fprintf(stdout, "holding\n");
1526: (void) fflush(stdout);
1.1 deraadt 1527: }
1.29 ! espie 1528: Lst_AtFront(&stoppedJobs, job);
1.1 deraadt 1529: jobFull = TRUE;
1530: if (DEBUG(JOB)) {
1.2 deraadt 1531: (void) fprintf(stdout, "Job queue is full.\n");
1532: (void) fflush(stdout);
1.1 deraadt 1533: }
1534: return;
1.2 deraadt 1535: } else {
1.1 deraadt 1536: /*
1537: * Job may be run locally.
1538: */
1539: if (DEBUG(JOB)) {
1.2 deraadt 1540: (void) fprintf(stdout, "running locally\n");
1541: (void) fflush(stdout);
1.1 deraadt 1542: }
1543: job->flags &= ~JOB_REMOTE;
1.2 deraadt 1544: }
1545: }
1546: #ifdef REMOTE
1547: else {
1548: /*
1549: * Can be exported. Hooray!
1550: */
1551: if (DEBUG(JOB)) {
1552: (void) fprintf(stdout, "exporting\n");
1553: (void) fflush(stdout);
1554: }
1555: job->flags |= JOB_REMOTE;
1.1 deraadt 1556: }
1.2 deraadt 1557: #endif
1.1 deraadt 1558: JobExec(job, argv);
1559: } else {
1560: /*
1561: * The job has stopped and needs to be restarted. Why it stopped,
1562: * we don't know...
1563: */
1564: if (DEBUG(JOB)) {
1.2 deraadt 1565: (void) fprintf(stdout, "Resuming %s...", job->node->name);
1566: (void) fflush(stdout);
1.1 deraadt 1567: }
1568: if (((job->flags & JOB_REMOTE) ||
1.2 deraadt 1569: (nLocal < maxLocal) ||
1570: #ifdef REMOTE
1571: (((job->flags & JOB_SPECIAL) &&
1572: (job->node->type & OP_NOEXPORT)) &&
1573: (maxLocal == 0))) &&
1574: #else
1575: ((job->flags & JOB_SPECIAL) &&
1576: (maxLocal == 0))) &&
1577: #endif
1578: (nJobs != maxJobs))
1.1 deraadt 1579: {
1580: /*
1581: * If the job is remote, it's ok to resume it as long as the
1582: * maximum concurrency won't be exceeded. If it's local and
1.6 millert 1583: * we haven't reached the local concurrency limit already (or the
1.1 deraadt 1584: * job must be run locally and maxLocal is 0), it's also ok to
1585: * resume it.
1586: */
1587: Boolean error;
1.2 deraadt 1588: int status;
1.6 millert 1589:
1.1 deraadt 1590: #ifdef RMT_WANTS_SIGNALS
1591: if (job->flags & JOB_REMOTE) {
1592: error = !Rmt_Signal(job, SIGCONT);
1593: } else
1594: #endif /* RMT_WANTS_SIGNALS */
1595: error = (KILL(job->pid, SIGCONT) != 0);
1596:
1597: if (!error) {
1598: /*
1599: * Make sure the user knows we've continued the beast and
1600: * actually put the thing in the job table.
1601: */
1602: job->flags |= JOB_CONTINUING;
1.2 deraadt 1603: W_SETTERMSIG(&status, SIGCONT);
1604: JobFinish(job, &status);
1.6 millert 1605:
1.1 deraadt 1606: job->flags &= ~(JOB_RESUME|JOB_CONTINUING);
1607: if (DEBUG(JOB)) {
1.2 deraadt 1608: (void) fprintf(stdout, "done\n");
1609: (void) fflush(stdout);
1.1 deraadt 1610: }
1611: } else {
1612: Error("couldn't resume %s: %s",
1613: job->node->name, strerror(errno));
1.2 deraadt 1614: status = 0;
1615: W_SETEXITSTATUS(&status, 1);
1616: JobFinish(job, &status);
1.1 deraadt 1617: }
1618: } else {
1619: /*
1620: * Job cannot be restarted. Mark the table as full and
1621: * place the job back on the list of stopped jobs.
1622: */
1623: if (DEBUG(JOB)) {
1.2 deraadt 1624: (void) fprintf(stdout, "table full\n");
1625: (void) fflush(stdout);
1.1 deraadt 1626: }
1.29 ! espie 1627: Lst_AtFront(&stoppedJobs, job);
1.1 deraadt 1628: jobFull = TRUE;
1629: if (DEBUG(JOB)) {
1.2 deraadt 1630: (void) fprintf(stdout, "Job queue is full.\n");
1631: (void) fflush(stdout);
1.1 deraadt 1632: }
1633: }
1634: }
1635: }
1636:
1637: /*-
1638: *-----------------------------------------------------------------------
1639: * JobStart --
1640: * Start a target-creation process going for the target described
1.6 millert 1641: * by the graph node gn.
1.1 deraadt 1642: *
1643: * Results:
1644: * JOB_ERROR if there was an error in the commands, JOB_FINISHED
1645: * if there isn't actually anything left to do for the job and
1646: * JOB_RUNNING if the job has been started.
1647: *
1648: * Side Effects:
1649: * A new Job node is created and added to the list of running
1650: * jobs. PMake is forked and a child shell created.
1651: *-----------------------------------------------------------------------
1652: */
1653: static int
1.2 deraadt 1654: JobStart(gn, flags, previous)
1.1 deraadt 1655: GNode *gn; /* target to create */
1656: int flags; /* flags for the job to override normal ones.
1657: * e.g. JOB_SPECIAL or JOB_IGNDOTS */
1658: Job *previous; /* The previous Job structure for this node,
1659: * if any. */
1660: {
1661: register Job *job; /* new job descriptor */
1662: char *argv[4]; /* Argument vector to shell */
1663: Boolean cmdsOK; /* true if the nodes commands were all right */
1664: Boolean local; /* Set true if the job was run locally */
1665: Boolean noExec; /* Set true if we decide not to run the job */
1.22 espie 1666: int tfd; /* where to stash those pesky commands */
1.1 deraadt 1667:
1.2 deraadt 1668: if (previous != NULL) {
1669: previous->flags &= ~(JOB_FIRST|JOB_IGNERR|JOB_SILENT|JOB_REMOTE);
1.1 deraadt 1670: job = previous;
1671: } else {
1.2 deraadt 1672: job = (Job *) emalloc(sizeof(Job));
1673: if (job == NULL) {
1.1 deraadt 1674: Punt("JobStart out of memory");
1675: }
1676: flags |= JOB_FIRST;
1677: }
1678:
1679: job->node = gn;
1.18 espie 1680: job->tailCmds = NULL;
1.1 deraadt 1681:
1682: /*
1683: * Set the initial value of the flags for this job based on the global
1684: * ones and the node's attributes... Any flags supplied by the caller
1685: * are also added to the field.
1686: */
1687: job->flags = 0;
1.2 deraadt 1688: if (Targ_Ignore(gn)) {
1.1 deraadt 1689: job->flags |= JOB_IGNERR;
1690: }
1.2 deraadt 1691: if (Targ_Silent(gn)) {
1.1 deraadt 1692: job->flags |= JOB_SILENT;
1693: }
1694: job->flags |= flags;
1695:
1696: /*
1697: * Check the commands now so any attributes from .DEFAULT have a chance
1698: * to migrate to the node
1699: */
1.2 deraadt 1700: if (!compatMake && job->flags & JOB_FIRST) {
1.1 deraadt 1701: cmdsOK = Job_CheckCommands(gn, Error);
1702: } else {
1703: cmdsOK = TRUE;
1704: }
1.6 millert 1705:
1.1 deraadt 1706: /*
1.6 millert 1707: * If the -n flag wasn't given, we open up OUR (not the child's)
1.1 deraadt 1708: * temporary file to stuff commands in it. The thing is rd/wr so we don't
1709: * need to reopen it to feed it to the shell. If the -n flag *was* given,
1710: * we just set the file to be stdout. Cute, huh?
1711: */
1712: if ((gn->type & OP_MAKE) || (!noExecute && !touchFlag)) {
1713: /*
1714: * We're serious here, but if the commands were bogus, we're
1715: * also dead...
1716: */
1717: if (!cmdsOK) {
1718: DieHorribly();
1719: }
1.6 millert 1720:
1.22 espie 1721: (void) strcpy(tfile, TMPPAT);
1722: if ((tfd = mkstemp(tfile)) == -1)
1723: Punt("Cannot create temp file: %s", strerror(errno));
1724: job->cmdFILE = fdopen(tfd, "w+");
1725: eunlink(tfile);
1.2 deraadt 1726: if (job->cmdFILE == NULL) {
1.22 espie 1727: close(tfd);
1.2 deraadt 1728: Punt("Could not open %s", tfile);
1.1 deraadt 1729: }
1.2 deraadt 1730: (void) fcntl(FILENO(job->cmdFILE), F_SETFD, 1);
1.1 deraadt 1731: /*
1732: * Send the commands to the command file, flush all its buffers then
1733: * rewind and remove the thing.
1734: */
1735: noExec = FALSE;
1736:
1737: /*
1738: * used to be backwards; replace when start doing multiple commands
1739: * per shell.
1740: */
1741: if (compatMake) {
1742: /*
1743: * Be compatible: If this is the first time for this node,
1744: * verify its commands are ok and open the commands list for
1745: * sequential access by later invocations of JobStart.
1746: * Once that is done, we take the next command off the list
1747: * and print it to the command file. If the command was an
1748: * ellipsis, note that there's nothing more to execute.
1749: */
1.29 ! espie 1750: if ((job->flags&JOB_FIRST) && (Lst_Open(&gn->commands) != SUCCESS)){
1.1 deraadt 1751: cmdsOK = FALSE;
1752: } else {
1.29 ! espie 1753: LstNode ln = Lst_Next(&gn->commands);
1.6 millert 1754:
1.26 espie 1755: if ((ln == NULL) || !JobPrintCommand(Lst_Datum(ln), job)) {
1.1 deraadt 1756: noExec = TRUE;
1.29 ! espie 1757: Lst_Close(&gn->commands);
1.1 deraadt 1758: }
1759: if (noExec && !(job->flags & JOB_FIRST)) {
1760: /*
1761: * If we're not going to execute anything, the job
1762: * is done and we need to close down the various
1763: * file descriptors we've opened for output, then
1764: * call JobDoOutput to catch the final characters or
1765: * send the file to the screen... Note that the i/o streams
1766: * are only open if this isn't the first job.
1767: * Note also that this could not be done in
1768: * Job_CatchChildren b/c it wasn't clear if there were
1769: * more commands to execute or not...
1770: */
1.2 deraadt 1771: JobClose(job);
1.1 deraadt 1772: }
1773: }
1774: } else {
1775: /*
1776: * We can do all the commands at once. hooray for sanity
1777: */
1778: numCommands = 0;
1.29 ! espie 1779: Lst_Find(&gn->commands, JobPrintCommand, job);
1.6 millert 1780:
1.1 deraadt 1781: /*
1782: * If we didn't print out any commands to the shell script,
1783: * there's not much point in executing the shell, is there?
1784: */
1785: if (numCommands == 0) {
1786: noExec = TRUE;
1787: }
1788: }
1789: } else if (noExecute) {
1790: /*
1791: * Not executing anything -- just print all the commands to stdout
1792: * in one fell swoop. This will still set up job->tailCmds correctly.
1793: */
1794: if (lastNode != gn) {
1.2 deraadt 1795: MESSAGE(stdout, gn);
1.1 deraadt 1796: lastNode = gn;
1797: }
1798: job->cmdFILE = stdout;
1799: /*
1800: * Only print the commands if they're ok, but don't die if they're
1801: * not -- just let the user know they're bad and keep going. It
1802: * doesn't do any harm in this case and may do some good.
1803: */
1.26 espie 1804: if (cmdsOK)
1.29 ! espie 1805: Lst_Find(&gn->commands, JobPrintCommand, job);
1.1 deraadt 1806: /*
1807: * Don't execute the shell, thank you.
1808: */
1809: noExec = TRUE;
1810: } else {
1811: /*
1812: * Just touch the target and note that no shell should be executed.
1813: * Set cmdFILE to stdout to make life easier. Check the commands, too,
1814: * but don't die if they're no good -- it does no harm to keep working
1815: * up the graph.
1816: */
1817: job->cmdFILE = stdout;
1.2 deraadt 1818: Job_Touch(gn, job->flags&JOB_SILENT);
1.1 deraadt 1819: noExec = TRUE;
1820: }
1821:
1822: /*
1.6 millert 1823: * If we're not supposed to execute a shell, don't.
1.1 deraadt 1824: */
1825: if (noExec) {
1826: /*
1827: * Unlink and close the command file if we opened one
1828: */
1829: if (job->cmdFILE != stdout) {
1.2 deraadt 1830: if (job->cmdFILE != NULL)
1831: (void) fclose(job->cmdFILE);
1.1 deraadt 1832: } else {
1.2 deraadt 1833: (void) fflush(stdout);
1.1 deraadt 1834: }
1835:
1836: /*
1837: * We only want to work our way up the graph if we aren't here because
1838: * the commands for the job were no good.
1839: */
1840: if (cmdsOK) {
1841: if (aborting == 0) {
1.27 espie 1842: Lst_ForEachFrom(job->tailCmds, JobSaveCommand, job->node);
1.1 deraadt 1843: Make_Update(job->node);
1844: }
1.28 espie 1845: free(job);
1846: return JOB_FINISHED;
1.1 deraadt 1847: } else {
1.28 espie 1848: free(job);
1849: return JOB_ERROR;
1.1 deraadt 1850: }
1851: } else {
1.2 deraadt 1852: (void) fflush(job->cmdFILE);
1.1 deraadt 1853: }
1854:
1855: /*
1856: * Set up the control arguments to the shell. This is based on the flags
1857: * set earlier for this job.
1858: */
1859: JobMakeArgv(job, argv);
1860:
1861: /*
1862: * If we're using pipes to catch output, create the pipe by which we'll
1863: * get the shell's output. If we're using files, print out that we're
1.7 millert 1864: * starting a job and then set up its temporary-file name.
1.1 deraadt 1865: */
1.2 deraadt 1866: if (!compatMake || (job->flags & JOB_FIRST)) {
1.1 deraadt 1867: if (usePipes) {
1868: int fd[2];
1.2 deraadt 1869: if (pipe(fd) == -1)
1870: Punt("Cannot create pipe: %s", strerror(errno));
1.1 deraadt 1871: job->inPipe = fd[0];
1872: job->outPipe = fd[1];
1.2 deraadt 1873: (void) fcntl(job->inPipe, F_SETFD, 1);
1874: (void) fcntl(job->outPipe, F_SETFD, 1);
1.1 deraadt 1875: } else {
1.2 deraadt 1876: (void) fprintf(stdout, "Remaking `%s'\n", gn->name);
1877: (void) fflush(stdout);
1.7 millert 1878: (void) strcpy(job->outFile, TMPPAT);
1879: if ((job->outFd = mkstemp(job->outFile)) == -1)
1880: Punt("Cannot create temp file: %s", strerror(errno));
1.2 deraadt 1881: (void) fcntl(job->outFd, F_SETFD, 1);
1.1 deraadt 1882: }
1883: }
1884:
1.2 deraadt 1885: #ifdef REMOTE
1886: if (!(gn->type & OP_NOEXPORT) && !(runLocalFirst && nLocal < maxLocal)) {
1887: #ifdef RMT_NO_EXEC
1888: local = !Rmt_Export(shellPath, argv, job);
1889: #else
1890: local = !Rmt_Begin(shellPath, argv, job->node);
1891: #endif /* RMT_NO_EXEC */
1892: if (!local) {
1893: job->flags |= JOB_REMOTE;
1894: }
1895: } else
1896: #endif
1897: local = TRUE;
1.1 deraadt 1898:
1899: if (local && (((nLocal >= maxLocal) &&
1.2 deraadt 1900: !(job->flags & JOB_SPECIAL) &&
1901: #ifdef REMOTE
1902: (!(gn->type & OP_NOEXPORT) || (maxLocal != 0))
1903: #else
1904: (maxLocal != 0)
1905: #endif
1906: )))
1.1 deraadt 1907: {
1908: /*
1909: * The job can only be run locally, but we've hit the limit of
1910: * local concurrency, so put the job on hold until some other job
1.6 millert 1911: * finishes. Note that the special jobs (.BEGIN, .INTERRUPT and .END)
1.1 deraadt 1912: * may be run locally even when the local limit has been reached
1.6 millert 1913: * (e.g. when maxLocal == 0), though they will be exported if at
1.2 deraadt 1914: * all possible. In addition, any target marked with .NOEXPORT will
1915: * be run locally if maxLocal is 0.
1.1 deraadt 1916: */
1917: jobFull = TRUE;
1.6 millert 1918:
1.1 deraadt 1919: if (DEBUG(JOB)) {
1.2 deraadt 1920: (void) fprintf(stdout, "Can only run job locally.\n");
1921: (void) fflush(stdout);
1.1 deraadt 1922: }
1923: job->flags |= JOB_RESTART;
1.29 ! espie 1924: Lst_AtEnd(&stoppedJobs, job);
1.1 deraadt 1925: } else {
1926: if ((nLocal >= maxLocal) && local) {
1927: /*
1.6 millert 1928: * If we're running this job locally as a special case (see above),
1.1 deraadt 1929: * at least say the table is full.
1930: */
1931: jobFull = TRUE;
1932: if (DEBUG(JOB)) {
1.2 deraadt 1933: (void) fprintf(stdout, "Local job queue is full.\n");
1934: (void) fflush(stdout);
1.1 deraadt 1935: }
1936: }
1937: JobExec(job, argv);
1938: }
1939: return(JOB_RUNNING);
1940: }
1941:
1.6 millert 1942: static char *
1.2 deraadt 1943: JobOutput(job, cp, endp, msg)
1944: register Job *job;
1945: register char *cp, *endp;
1946: int msg;
1947: {
1948: register char *ecp;
1949:
1950: if (commandShell->noPrint) {
1.14 espie 1951: ecp = strstr(cp, commandShell->noPrint);
1.2 deraadt 1952: while (ecp != NULL) {
1953: if (cp != ecp) {
1954: *ecp = '\0';
1955: if (msg && job->node != lastNode) {
1956: MESSAGE(stdout, job->node);
1957: lastNode = job->node;
1958: }
1959: /*
1960: * The only way there wouldn't be a newline after
1961: * this line is if it were the last in the buffer.
1962: * however, since the non-printable comes after it,
1963: * there must be a newline, so we don't print one.
1964: */
1965: (void) fprintf(stdout, "%s", cp);
1966: (void) fflush(stdout);
1967: }
1968: cp = ecp + commandShell->noPLen;
1969: if (cp != endp) {
1970: /*
1971: * Still more to print, look again after skipping
1972: * the whitespace following the non-printable
1973: * command....
1974: */
1975: cp++;
1976: while (*cp == ' ' || *cp == '\t' || *cp == '\n') {
1977: cp++;
1978: }
1.14 espie 1979: ecp = strstr(cp, commandShell->noPrint);
1.2 deraadt 1980: } else {
1981: return cp;
1982: }
1983: }
1984: }
1985: return cp;
1986: }
1987:
1.1 deraadt 1988: /*-
1989: *-----------------------------------------------------------------------
1990: * JobDoOutput --
1991: * This function is called at different times depending on
1992: * whether the user has specified that output is to be collected
1993: * via pipes or temporary files. In the former case, we are called
1994: * whenever there is something to read on the pipe. We collect more
1995: * output from the given job and store it in the job's outBuf. If
1996: * this makes up a line, we print it tagged by the job's identifier,
1997: * as necessary.
1998: * If output has been collected in a temporary file, we open the
1999: * file and read it line by line, transfering it to our own
2000: * output channel until the file is empty. At which point we
2001: * remove the temporary file.
2002: * In both cases, however, we keep our figurative eye out for the
2003: * 'noPrint' line for the shell from which the output came. If
2004: * we recognize a line, we don't print it. If the command is not
1.6 millert 2005: * alone on the line (the character after it is not \0 or \n), we
1.1 deraadt 2006: * do print whatever follows it.
2007: *
2008: * Results:
2009: * None
2010: *
2011: * Side Effects:
2012: * curPos may be shifted as may the contents of outBuf.
2013: *-----------------------------------------------------------------------
2014: */
1.2 deraadt 2015: STATIC void
2016: JobDoOutput(job, finish)
1.1 deraadt 2017: register Job *job; /* the job whose output needs printing */
2018: Boolean finish; /* TRUE if this is the last time we'll be
2019: * called for this job */
2020: {
2021: Boolean gotNL = FALSE; /* true if got a newline */
1.2 deraadt 2022: Boolean fbuf; /* true if our buffer filled up */
1.1 deraadt 2023: register int nr; /* number of bytes read */
2024: register int i; /* auxiliary index into outBuf */
1.6 millert 2025: register int max; /* limit for i (end of current data) */
2026: int nRead; /* (Temporary) number of bytes read */
1.1 deraadt 2027:
2028: FILE *oFILE; /* Stream pointer to shell's output file */
2029: char inLine[132];
2030:
1.6 millert 2031:
1.1 deraadt 2032: if (usePipes) {
2033: /*
2034: * Read as many bytes as will fit in the buffer.
2035: */
2036: end_loop:
1.2 deraadt 2037: gotNL = FALSE;
2038: fbuf = FALSE;
1.6 millert 2039:
1.2 deraadt 2040: nRead = read(job->inPipe, &job->outBuf[job->curPos],
1.1 deraadt 2041: JOB_BUFSIZE - job->curPos);
2042: if (nRead < 0) {
2043: if (DEBUG(JOB)) {
2044: perror("JobDoOutput(piperead)");
2045: }
2046: nr = 0;
2047: } else {
2048: nr = nRead;
2049: }
2050:
2051: /*
1.6 millert 2052: * If we hit the end-of-file (the job is dead), we must flush its
1.1 deraadt 2053: * remaining output, so pretend we read a newline if there's any
2054: * output remaining in the buffer.
2055: * Also clear the 'finish' flag so we stop looping.
2056: */
2057: if ((nr == 0) && (job->curPos != 0)) {
2058: job->outBuf[job->curPos] = '\n';
2059: nr = 1;
2060: finish = FALSE;
2061: } else if (nr == 0) {
2062: finish = FALSE;
2063: }
1.6 millert 2064:
1.1 deraadt 2065: /*
2066: * Look for the last newline in the bytes we just got. If there is
2067: * one, break out of the loop with 'i' as its index and gotNL set
1.6 millert 2068: * TRUE.
1.1 deraadt 2069: */
2070: max = job->curPos + nr;
2071: for (i = job->curPos + nr - 1; i >= job->curPos; i--) {
2072: if (job->outBuf[i] == '\n') {
2073: gotNL = TRUE;
2074: break;
2075: } else if (job->outBuf[i] == '\0') {
2076: /*
2077: * Why?
2078: */
2079: job->outBuf[i] = ' ';
2080: }
2081: }
1.6 millert 2082:
1.1 deraadt 2083: if (!gotNL) {
2084: job->curPos += nr;
2085: if (job->curPos == JOB_BUFSIZE) {
2086: /*
2087: * If we've run out of buffer space, we have no choice
1.6 millert 2088: * but to print the stuff. sigh.
1.1 deraadt 2089: */
1.2 deraadt 2090: fbuf = TRUE;
1.1 deraadt 2091: i = job->curPos;
2092: }
2093: }
1.2 deraadt 2094: if (gotNL || fbuf) {
1.1 deraadt 2095: /*
2096: * Need to send the output to the screen. Null terminate it
2097: * first, overwriting the newline character if there was one.
1.6 millert 2098: * So long as the line isn't one we should filter (according
1.1 deraadt 2099: * to the shell description), we print the line, preceeded
2100: * by a target banner if this target isn't the same as the
2101: * one for which we last printed something.
2102: * The rest of the data in the buffer are then shifted down
1.6 millert 2103: * to the start of the buffer and curPos is set accordingly.
1.1 deraadt 2104: */
2105: job->outBuf[i] = '\0';
2106: if (i >= job->curPos) {
1.2 deraadt 2107: char *cp;
1.6 millert 2108:
2109: cp = JobOutput(job, job->outBuf, &job->outBuf[i], FALSE);
1.1 deraadt 2110:
2111: /*
2112: * There's still more in that thar buffer. This time, though,
2113: * we know there's no newline at the end, so we add one of
2114: * our own free will.
2115: */
2116: if (*cp != '\0') {
2117: if (job->node != lastNode) {
1.2 deraadt 2118: MESSAGE(stdout, job->node);
1.1 deraadt 2119: lastNode = job->node;
2120: }
1.2 deraadt 2121: (void) fprintf(stdout, "%s%s", cp, gotNL ? "\n" : "");
2122: (void) fflush(stdout);
1.1 deraadt 2123: }
2124: }
2125: if (i < max - 1) {
2126: /* shift the remaining characters down */
1.6 millert 2127: (void) memcpy(job->outBuf, &job->outBuf[i + 1], max - (i + 1));
2128: job->curPos = max - (i + 1);
2129:
1.1 deraadt 2130: } else {
2131: /*
2132: * We have written everything out, so we just start over
2133: * from the start of the buffer. No copying. No nothing.
2134: */
2135: job->curPos = 0;
2136: }
2137: }
2138: if (finish) {
2139: /*
2140: * If the finish flag is true, we must loop until we hit
1.6 millert 2141: * end-of-file on the pipe. This is guaranteed to happen
2142: * eventually since the other end of the pipe is now closed
2143: * (we closed it explicitly and the child has exited). When
2144: * we do get an EOF, finish will be set FALSE and we'll fall
2145: * through and out.
1.1 deraadt 2146: */
2147: goto end_loop;
2148: }
2149: } else {
2150: /*
2151: * We've been called to retrieve the output of the job from the
2152: * temporary file where it's been squirreled away. This consists of
2153: * opening the file, reading the output line by line, being sure not
2154: * to print the noPrint line for the shell we used, then close and
2155: * remove the temporary file. Very simple.
2156: *
2157: * Change to read in blocks and do FindSubString type things as for
2158: * pipes? That would allow for "@echo -n..."
2159: */
1.2 deraadt 2160: oFILE = fopen(job->outFile, "r");
2161: if (oFILE != NULL) {
2162: (void) fprintf(stdout, "Results of making %s:\n", job->node->name);
2163: (void) fflush(stdout);
2164: while (fgets(inLine, sizeof(inLine), oFILE) != NULL) {
2165: register char *cp, *endp, *oendp;
1.1 deraadt 2166:
2167: cp = inLine;
1.2 deraadt 2168: oendp = endp = inLine + strlen(inLine);
1.1 deraadt 2169: if (endp[-1] == '\n') {
2170: *--endp = '\0';
2171: }
1.2 deraadt 2172: cp = JobOutput(job, inLine, endp, FALSE);
1.1 deraadt 2173:
2174: /*
2175: * There's still more in that thar buffer. This time, though,
2176: * we know there's no newline at the end, so we add one of
2177: * our own free will.
2178: */
1.2 deraadt 2179: (void) fprintf(stdout, "%s", cp);
2180: (void) fflush(stdout);
2181: if (endp != oendp) {
2182: (void) fprintf(stdout, "\n");
2183: (void) fflush(stdout);
1.1 deraadt 2184: }
2185: }
1.2 deraadt 2186: (void) fclose(oFILE);
2187: (void) eunlink(job->outFile);
1.1 deraadt 2188: }
2189: }
2190: }
2191:
2192: /*-
2193: *-----------------------------------------------------------------------
2194: * Job_CatchChildren --
2195: * Handle the exit of a child. Called from Make_Make.
2196: *
2197: * Results:
2198: * none.
2199: *
2200: * Side Effects:
2201: * The job descriptor is removed from the list of children.
2202: *
2203: * Notes:
2204: * We do waits, blocking or not, according to the wisdom of our
2205: * caller, until there are no more children to report. For each
2206: * job, call JobFinish to finish things off. This will take care of
2207: * putting jobs on the stoppedJobs queue.
2208: *
2209: *-----------------------------------------------------------------------
2210: */
2211: void
1.2 deraadt 2212: Job_CatchChildren(block)
1.1 deraadt 2213: Boolean block; /* TRUE if should block on the wait. */
2214: {
2215: int pid; /* pid of dead child */
2216: register Job *job; /* job descriptor for dead child */
2217: LstNode jnode; /* list element for finding job */
1.2 deraadt 2218: int status; /* Exit/termination status */
1.1 deraadt 2219:
2220: /*
2221: * Don't even bother if we know there's no one around.
2222: */
2223: if (nLocal == 0) {
2224: return;
2225: }
1.6 millert 2226:
1.2 deraadt 2227: while ((pid = waitpid((pid_t) -1, &status,
2228: (block?0:WNOHANG)|WUNTRACED)) > 0)
1.1 deraadt 2229: {
1.2 deraadt 2230: if (DEBUG(JOB)) {
2231: (void) fprintf(stdout, "Process %d exited or stopped.\n", pid);
2232: (void) fflush(stdout);
2233: }
1.6 millert 2234:
1.1 deraadt 2235:
1.29 ! espie 2236: jnode = Lst_Find(&jobs, JobCmpPid, &pid);
1.1 deraadt 2237:
1.18 espie 2238: if (jnode == NULL) {
1.2 deraadt 2239: if (WIFSIGNALED(status) && (WTERMSIG(status) == SIGCONT)) {
1.29 ! espie 2240: jnode = Lst_Find(&stoppedJobs, JobCmpPid, &pid);
1.18 espie 2241: if (jnode == NULL) {
1.6 millert 2242: Error("Resumed child (%d) not in table", pid);
1.1 deraadt 2243: continue;
2244: }
2245: job = (Job *)Lst_Datum(jnode);
1.29 ! espie 2246: Lst_Remove(&stoppedJobs, jnode);
1.1 deraadt 2247: } else {
1.6 millert 2248: Error("Child (%d) not in table?", pid);
1.1 deraadt 2249: continue;
2250: }
2251: } else {
1.2 deraadt 2252: job = (Job *) Lst_Datum(jnode);
1.29 ! espie 2253: Lst_Remove(&jobs, jnode);
1.1 deraadt 2254: nJobs -= 1;
2255: if (jobFull && DEBUG(JOB)) {
1.2 deraadt 2256: (void) fprintf(stdout, "Job queue is no longer full.\n");
2257: (void) fflush(stdout);
1.1 deraadt 2258: }
2259: jobFull = FALSE;
1.2 deraadt 2260: #ifdef REMOTE
2261: if (!(job->flags & JOB_REMOTE)) {
2262: if (DEBUG(JOB)) {
2263: (void) fprintf(stdout,
2264: "Job queue has one fewer local process.\n");
2265: (void) fflush(stdout);
2266: }
2267: nLocal -= 1;
2268: }
2269: #else
1.1 deraadt 2270: nLocal -= 1;
1.2 deraadt 2271: #endif
1.1 deraadt 2272: }
2273:
1.2 deraadt 2274: JobFinish(job, &status);
1.1 deraadt 2275: }
2276: }
2277:
2278: /*-
2279: *-----------------------------------------------------------------------
2280: * Job_CatchOutput --
2281: * Catch the output from our children, if we're using
2282: * pipes do so. Otherwise just block time until we get a
1.6 millert 2283: * signal (most likely a SIGCHLD) since there's no point in
1.1 deraadt 2284: * just spinning when there's nothing to do and the reaping
1.6 millert 2285: * of a child can wait for a while.
1.1 deraadt 2286: *
2287: * Results:
1.6 millert 2288: * None
1.1 deraadt 2289: *
2290: * Side Effects:
2291: * Output is read from pipes if we're piping.
2292: * -----------------------------------------------------------------------
2293: */
2294: void
1.2 deraadt 2295: Job_CatchOutput()
1.1 deraadt 2296: {
2297: int nfds;
2298: struct timeval timeout;
2299: register LstNode ln;
2300: register Job *job;
2301: #ifdef RMT_WILL_WATCH
2302: int pnJobs; /* Previous nJobs */
2303: #endif
2304:
1.2 deraadt 2305: (void) fflush(stdout);
1.1 deraadt 2306: #ifdef RMT_WILL_WATCH
2307: pnJobs = nJobs;
2308:
2309: /*
2310: * It is possible for us to be called with nJobs equal to 0. This happens
2311: * if all the jobs finish and a job that is stopped cannot be run
2312: * locally (eg if maxLocal is 0) and cannot be exported. The job will
2313: * be placed back on the stoppedJobs queue, Job_Empty() will return false,
2314: * Make_Run will call us again when there's nothing for which to wait.
2315: * nJobs never changes, so we loop forever. Hence the check. It could
2316: * be argued that we should sleep for a bit so as not to swamp the
2317: * exportation system with requests. Perhaps we should.
2318: *
2319: * NOTE: IT IS THE RESPONSIBILITY OF Rmt_Wait TO CALL Job_CatchChildren
2320: * IN A TIMELY FASHION TO CATCH ANY LOCALLY RUNNING JOBS THAT EXIT.
2321: * It may use the variable nLocal to determine if it needs to call
1.6 millert 2322: * Job_CatchChildren (if nLocal is 0, there's nothing for which to
1.1 deraadt 2323: * wait...)
2324: */
2325: while (nJobs != 0 && pnJobs == nJobs) {
2326: Rmt_Wait();
2327: }
2328: #else
2329: if (usePipes) {
1.8 deraadt 2330: int count = howmany(outputsn+1, NFDBITS) * sizeof(fd_mask);
2331: fd_set *readfdsp = malloc(count);
2332: if (readfdsp == NULL)
2333: return;
2334:
2335: memcpy(readfdsp, outputsp, count);
1.1 deraadt 2336: timeout.tv_sec = SEL_SEC;
2337: timeout.tv_usec = SEL_USEC;
2338:
1.8 deraadt 2339: if ((nfds = select(outputsn+1, readfdsp, (fd_set *) 0,
2340: (fd_set *) 0, &timeout)) <= 0) {
2341: free(readfdsp);
1.1 deraadt 2342: return;
1.8 deraadt 2343: } else {
1.29 ! espie 2344: if (Lst_Open(&jobs) == FAILURE) {
1.8 deraadt 2345: free(readfdsp);
1.2 deraadt 2346: Punt("Cannot open job table");
1.1 deraadt 2347: }
1.29 ! espie 2348: while (nfds && (ln = Lst_Next(&jobs)) != NULL) {
1.2 deraadt 2349: job = (Job *) Lst_Datum(ln);
1.8 deraadt 2350: if (FD_ISSET(job->inPipe, readfdsp)) {
1.2 deraadt 2351: JobDoOutput(job, FALSE);
1.1 deraadt 2352: nfds -= 1;
2353: }
2354: }
1.29 ! espie 2355: Lst_Close(&jobs);
1.1 deraadt 2356: }
1.8 deraadt 2357: free(readfdsp);
1.1 deraadt 2358: }
2359: #endif /* RMT_WILL_WATCH */
2360: }
2361:
2362: /*-
2363: *-----------------------------------------------------------------------
2364: * Job_Make --
2365: * Start the creation of a target. Basically a front-end for
2366: * JobStart used by the Make module.
2367: *
2368: * Results:
2369: * None.
2370: *
2371: * Side Effects:
2372: * Another job is started.
2373: *
2374: *-----------------------------------------------------------------------
2375: */
2376: void
1.2 deraadt 2377: Job_Make(gn)
1.1 deraadt 2378: GNode *gn;
2379: {
1.2 deraadt 2380: (void) JobStart(gn, 0, NULL);
1.1 deraadt 2381: }
2382:
2383: /*-
2384: *-----------------------------------------------------------------------
2385: * Job_Init --
2386: * Initialize the process module
2387: *
2388: * Results:
2389: * none
2390: *
2391: * Side Effects:
2392: * lists and counters are initialized
2393: *-----------------------------------------------------------------------
2394: */
2395: void
1.2 deraadt 2396: Job_Init(maxproc, maxlocal)
1.1 deraadt 2397: int maxproc; /* the greatest number of jobs which may be
2398: * running at one time */
2399: int maxlocal; /* the greatest number of local jobs which may
2400: * be running at once. */
2401: {
2402: GNode *begin; /* node for commands to do at the very start */
2403:
1.29 ! espie 2404: Lst_Init(&jobs);
! 2405: Lst_Init(&stoppedJobs);
1.1 deraadt 2406: maxJobs = maxproc;
2407: maxLocal = maxlocal;
2408: nJobs = 0;
2409: nLocal = 0;
2410: jobFull = FALSE;
2411:
2412: aborting = 0;
2413: errors = 0;
2414:
1.18 espie 2415: lastNode = NULL;
1.1 deraadt 2416:
1.2 deraadt 2417: if (maxJobs == 1
2418: #ifdef REMOTE
2419: || noMessages
2420: #endif
2421: ) {
1.1 deraadt 2422: /*
2423: * If only one job can run at a time, there's no need for a banner,
2424: * no is there?
2425: */
2426: targFmt = "";
2427: } else {
2428: targFmt = TARG_FMT;
2429: }
1.6 millert 2430:
1.2 deraadt 2431: if (shellPath == NULL) {
1.1 deraadt 2432: /*
2433: * The user didn't specify a shell to use, so we are using the
2434: * default one... Both the absolute path and the last component
2435: * must be set. The last component is taken from the 'name' field
2436: * of the default shell description pointed-to by commandShell.
2437: * All default shells are located in _PATH_DEFSHELLDIR.
2438: */
2439: shellName = commandShell->name;
1.2 deraadt 2440: shellPath = str_concat(_PATH_DEFSHELLDIR, shellName, STR_ADDSLASH);
1.1 deraadt 2441: }
2442:
1.2 deraadt 2443: if (commandShell->exit == NULL) {
1.1 deraadt 2444: commandShell->exit = "";
2445: }
1.2 deraadt 2446: if (commandShell->echo == NULL) {
1.1 deraadt 2447: commandShell->echo = "";
2448: }
2449:
2450: /*
2451: * Catch the four signals that POSIX specifies if they aren't ignored.
2452: * JobPassSig will take care of calling JobInterrupt if appropriate.
2453: */
1.2 deraadt 2454: if (signal(SIGINT, SIG_IGN) != SIG_IGN) {
2455: (void) signal(SIGINT, JobPassSig);
1.1 deraadt 2456: }
1.2 deraadt 2457: if (signal(SIGHUP, SIG_IGN) != SIG_IGN) {
2458: (void) signal(SIGHUP, JobPassSig);
1.1 deraadt 2459: }
1.2 deraadt 2460: if (signal(SIGQUIT, SIG_IGN) != SIG_IGN) {
2461: (void) signal(SIGQUIT, JobPassSig);
1.1 deraadt 2462: }
1.2 deraadt 2463: if (signal(SIGTERM, SIG_IGN) != SIG_IGN) {
2464: (void) signal(SIGTERM, JobPassSig);
1.1 deraadt 2465: }
2466: /*
2467: * There are additional signals that need to be caught and passed if
2468: * either the export system wants to be told directly of signals or if
1.6 millert 2469: * we're giving each job its own process group (since then it won't get
1.1 deraadt 2470: * signals from the terminal driver as we own the terminal)
2471: */
2472: #if defined(RMT_WANTS_SIGNALS) || defined(USE_PGRP)
1.2 deraadt 2473: if (signal(SIGTSTP, SIG_IGN) != SIG_IGN) {
2474: (void) signal(SIGTSTP, JobPassSig);
1.1 deraadt 2475: }
1.2 deraadt 2476: if (signal(SIGTTOU, SIG_IGN) != SIG_IGN) {
2477: (void) signal(SIGTTOU, JobPassSig);
1.1 deraadt 2478: }
1.2 deraadt 2479: if (signal(SIGTTIN, SIG_IGN) != SIG_IGN) {
2480: (void) signal(SIGTTIN, JobPassSig);
1.1 deraadt 2481: }
1.2 deraadt 2482: if (signal(SIGWINCH, SIG_IGN) != SIG_IGN) {
2483: (void) signal(SIGWINCH, JobPassSig);
1.1 deraadt 2484: }
2485: #endif
1.6 millert 2486:
1.2 deraadt 2487: begin = Targ_FindNode(".BEGIN", TARG_NOCREATE);
1.1 deraadt 2488:
1.18 espie 2489: if (begin != NULL) {
1.2 deraadt 2490: JobStart(begin, JOB_SPECIAL, (Job *)0);
1.1 deraadt 2491: while (nJobs) {
2492: Job_CatchOutput();
2493: #ifndef RMT_WILL_WATCH
1.2 deraadt 2494: Job_CatchChildren(!usePipes);
1.1 deraadt 2495: #endif /* RMT_WILL_WATCH */
2496: }
2497: }
1.2 deraadt 2498: postCommands = Targ_FindNode(".END", TARG_CREATE);
1.1 deraadt 2499: }
2500:
2501: /*-
2502: *-----------------------------------------------------------------------
2503: * Job_Full --
2504: * See if the job table is full. It is considered full if it is OR
2505: * if we are in the process of aborting OR if we have
2506: * reached/exceeded our local quota. This prevents any more jobs
2507: * from starting up.
2508: *
2509: * Results:
2510: * TRUE if the job table is full, FALSE otherwise
2511: * Side Effects:
2512: * None.
2513: *-----------------------------------------------------------------------
2514: */
2515: Boolean
1.2 deraadt 2516: Job_Full()
1.1 deraadt 2517: {
1.2 deraadt 2518: return(aborting || jobFull);
1.1 deraadt 2519: }
2520:
2521: /*-
2522: *-----------------------------------------------------------------------
2523: * Job_Empty --
2524: * See if the job table is empty. Because the local concurrency may
2525: * be set to 0, it is possible for the job table to become empty,
2526: * while the list of stoppedJobs remains non-empty. In such a case,
2527: * we want to restart as many jobs as we can.
2528: *
2529: * Results:
2530: * TRUE if it is. FALSE if it ain't.
2531: *
2532: * Side Effects:
2533: * None.
2534: *
2535: * -----------------------------------------------------------------------
2536: */
2537: Boolean
1.2 deraadt 2538: Job_Empty()
1.1 deraadt 2539: {
2540: if (nJobs == 0) {
1.29 ! espie 2541: if (!Lst_IsEmpty(&stoppedJobs) && !aborting) {
1.1 deraadt 2542: /*
2543: * The job table is obviously not full if it has no jobs in
2544: * it...Try and restart the stopped jobs.
2545: */
2546: jobFull = FALSE;
1.2 deraadt 2547: JobRestartJobs();
1.1 deraadt 2548: return(FALSE);
2549: } else {
2550: return(TRUE);
2551: }
2552: } else {
2553: return(FALSE);
2554: }
2555: }
2556:
2557: /*-
2558: *-----------------------------------------------------------------------
2559: * JobMatchShell --
2560: * Find a matching shell in 'shells' given its final component.
2561: *
2562: * Results:
2563: * A pointer to the Shell structure.
2564: *
2565: * Side Effects:
2566: * None.
2567: *
2568: *-----------------------------------------------------------------------
2569: */
2570: static Shell *
1.2 deraadt 2571: JobMatchShell(name)
1.1 deraadt 2572: char *name; /* Final component of shell path */
2573: {
2574: register Shell *sh; /* Pointer into shells table */
2575: Shell *match; /* Longest-matching shell */
2576: register char *cp1,
2577: *cp2;
2578: char *eoname;
2579:
1.2 deraadt 2580: eoname = name + strlen(name);
1.1 deraadt 2581:
1.2 deraadt 2582: match = NULL;
1.1 deraadt 2583:
2584: for (sh = shells; sh->name != NULL; sh++) {
1.2 deraadt 2585: for (cp1 = eoname - strlen(sh->name), cp2 = sh->name;
1.1 deraadt 2586: *cp1 != '\0' && *cp1 == *cp2;
2587: cp1++, cp2++) {
2588: continue;
2589: }
2590: if (*cp1 != *cp2) {
2591: continue;
1.2 deraadt 2592: } else if (match == NULL || strlen(match->name) < strlen(sh->name)) {
2593: match = sh;
1.1 deraadt 2594: }
2595: }
1.2 deraadt 2596: return(match == NULL ? sh : match);
1.1 deraadt 2597: }
2598:
2599: /*-
2600: *-----------------------------------------------------------------------
2601: * Job_ParseShell --
2602: * Parse a shell specification and set up commandShell, shellPath
2603: * and shellName appropriately.
2604: *
2605: * Results:
2606: * FAILURE if the specification was incorrect.
2607: *
2608: * Side Effects:
2609: * commandShell points to a Shell structure (either predefined or
2610: * created from the shell spec), shellPath is the full path of the
2611: * shell described by commandShell, while shellName is just the
2612: * final component of shellPath.
2613: *
2614: * Notes:
2615: * A shell specification consists of a .SHELL target, with dependency
2616: * operator, followed by a series of blank-separated words. Double
2617: * quotes can be used to use blanks in words. A backslash escapes
2618: * anything (most notably a double-quote and a space) and
2619: * provides the functionality it does in C. Each word consists of
2620: * keyword and value separated by an equal sign. There should be no
2621: * unnecessary spaces in the word. The keywords are as follows:
2622: * name Name of shell.
2623: * path Location of shell. Overrides "name" if given
2624: * quiet Command to turn off echoing.
2625: * echo Command to turn echoing on
2626: * filter Result of turning off echoing that shouldn't be
2627: * printed.
2628: * echoFlag Flag to turn echoing on at the start
2629: * errFlag Flag to turn error checking on at the start
2630: * hasErrCtl True if shell has error checking control
2631: * check Command to turn on error checking if hasErrCtl
2632: * is TRUE or template of command to echo a command
2633: * for which error checking is off if hasErrCtl is
2634: * FALSE.
2635: * ignore Command to turn off error checking if hasErrCtl
2636: * is TRUE or template of command to execute a
2637: * command so as to ignore any errors it returns if
2638: * hasErrCtl is FALSE.
2639: *
2640: *-----------------------------------------------------------------------
2641: */
2642: ReturnStatus
1.2 deraadt 2643: Job_ParseShell(line)
1.1 deraadt 2644: char *line; /* The shell spec */
2645: {
2646: char **words;
2647: int wordCount;
2648: register char **argv;
2649: register int argc;
2650: char *path;
2651: Shell newShell;
2652: Boolean fullSpec = FALSE;
2653:
1.2 deraadt 2654: while (isspace(*line)) {
1.1 deraadt 2655: line++;
2656: }
1.12 espie 2657:
2658: efree(shellArgv);
2659:
2660: words = brk_string(line, &wordCount, TRUE, &shellArgv);
1.1 deraadt 2661:
1.28 espie 2662: memset(&newShell, 0, sizeof(newShell));
1.6 millert 2663:
1.1 deraadt 2664: /*
2665: * Parse the specification by keyword
2666: */
1.12 espie 2667: for (path = NULL, argc = wordCount - 1, argv = words;
1.1 deraadt 2668: argc != 0;
2669: argc--, argv++) {
1.2 deraadt 2670: if (strncmp(*argv, "path=", 5) == 0) {
1.1 deraadt 2671: path = &argv[0][5];
1.2 deraadt 2672: } else if (strncmp(*argv, "name=", 5) == 0) {
1.1 deraadt 2673: newShell.name = &argv[0][5];
2674: } else {
1.2 deraadt 2675: if (strncmp(*argv, "quiet=", 6) == 0) {
1.1 deraadt 2676: newShell.echoOff = &argv[0][6];
1.2 deraadt 2677: } else if (strncmp(*argv, "echo=", 5) == 0) {
1.1 deraadt 2678: newShell.echoOn = &argv[0][5];
1.2 deraadt 2679: } else if (strncmp(*argv, "filter=", 7) == 0) {
1.1 deraadt 2680: newShell.noPrint = &argv[0][7];
2681: newShell.noPLen = strlen(newShell.noPrint);
1.2 deraadt 2682: } else if (strncmp(*argv, "echoFlag=", 9) == 0) {
1.1 deraadt 2683: newShell.echo = &argv[0][9];
1.2 deraadt 2684: } else if (strncmp(*argv, "errFlag=", 8) == 0) {
1.1 deraadt 2685: newShell.exit = &argv[0][8];
1.2 deraadt 2686: } else if (strncmp(*argv, "hasErrCtl=", 10) == 0) {
1.1 deraadt 2687: char c = argv[0][10];
2688: newShell.hasErrCtl = !((c != 'Y') && (c != 'y') &&
1.2 deraadt 2689: (c != 'T') && (c != 't'));
2690: } else if (strncmp(*argv, "check=", 6) == 0) {
1.1 deraadt 2691: newShell.errCheck = &argv[0][6];
1.2 deraadt 2692: } else if (strncmp(*argv, "ignore=", 7) == 0) {
1.1 deraadt 2693: newShell.ignErr = &argv[0][7];
2694: } else {
1.2 deraadt 2695: Parse_Error(PARSE_FATAL, "Unknown keyword \"%s\"",
1.1 deraadt 2696: *argv);
1.12 espie 2697: free(words);
1.2 deraadt 2698: return(FAILURE);
1.1 deraadt 2699: }
2700: fullSpec = TRUE;
2701: }
2702: }
2703:
1.2 deraadt 2704: if (path == NULL) {
1.1 deraadt 2705: /*
2706: * If no path was given, the user wants one of the pre-defined shells,
2707: * yes? So we find the one s/he wants with the help of JobMatchShell
2708: * and set things up the right way. shellPath will be set up by
2709: * Job_Init.
2710: */
1.2 deraadt 2711: if (newShell.name == NULL) {
2712: Parse_Error(PARSE_FATAL, "Neither path nor name specified");
2713: return(FAILURE);
1.1 deraadt 2714: } else {
1.2 deraadt 2715: commandShell = JobMatchShell(newShell.name);
1.1 deraadt 2716: shellName = newShell.name;
2717: }
2718: } else {
2719: /*
1.6 millert 2720: * The user provided a path. If s/he gave nothing else (fullSpec is
1.1 deraadt 2721: * FALSE), try and find a matching shell in the ones we know of.
2722: * Else we just take the specification at its word and copy it
2723: * to a new location. In either case, we need to record the
2724: * path the user gave for the shell.
2725: */
2726: shellPath = path;
1.2 deraadt 2727: path = strrchr(path, '/');
2728: if (path == NULL) {
1.1 deraadt 2729: path = shellPath;
2730: } else {
2731: path += 1;
2732: }
1.2 deraadt 2733: if (newShell.name != NULL) {
1.1 deraadt 2734: shellName = newShell.name;
2735: } else {
2736: shellName = path;
2737: }
2738: if (!fullSpec) {
1.2 deraadt 2739: commandShell = JobMatchShell(shellName);
1.1 deraadt 2740: } else {
2741: commandShell = (Shell *) emalloc(sizeof(Shell));
2742: *commandShell = newShell;
2743: }
2744: }
2745:
2746: if (commandShell->echoOn && commandShell->echoOff) {
2747: commandShell->hasEchoCtl = TRUE;
2748: }
1.6 millert 2749:
1.1 deraadt 2750: if (!commandShell->hasErrCtl) {
1.2 deraadt 2751: if (commandShell->errCheck == NULL) {
1.1 deraadt 2752: commandShell->errCheck = "";
2753: }
1.2 deraadt 2754: if (commandShell->ignErr == NULL) {
1.1 deraadt 2755: commandShell->ignErr = "%s\n";
2756: }
2757: }
1.6 millert 2758:
1.1 deraadt 2759: /*
2760: * Do not free up the words themselves, since they might be in use by the
2761: * shell specification...
2762: */
1.2 deraadt 2763: free(words);
1.1 deraadt 2764: return SUCCESS;
2765: }
2766:
2767: /*-
2768: *-----------------------------------------------------------------------
2769: * JobInterrupt --
2770: * Handle the receipt of an interrupt.
2771: *
2772: * Results:
2773: * None
2774: *
2775: * Side Effects:
2776: * All children are killed. Another job will be started if the
2777: * .INTERRUPT target was given.
2778: *-----------------------------------------------------------------------
2779: */
2780: static void
1.2 deraadt 2781: JobInterrupt(runINTERRUPT, signo)
1.1 deraadt 2782: int runINTERRUPT; /* Non-zero if commands for the .INTERRUPT
2783: * target should be executed */
1.2 deraadt 2784: int signo; /* signal received */
1.1 deraadt 2785: {
2786: LstNode ln; /* element in job table */
2787: Job *job; /* job descriptor in that element */
2788: GNode *interrupt; /* the node describing the .INTERRUPT target */
1.6 millert 2789:
1.1 deraadt 2790: aborting = ABORT_INTERRUPT;
2791:
1.29 ! espie 2792: (void) Lst_Open(&jobs);
! 2793: while ((ln = Lst_Next(&jobs)) != NULL) {
1.2 deraadt 2794: job = (Job *) Lst_Datum(ln);
1.1 deraadt 2795:
1.2 deraadt 2796: if (!Targ_Precious(job->node)) {
2797: char *file = (job->node->path == NULL ?
1.1 deraadt 2798: job->node->name :
2799: job->node->path);
1.2 deraadt 2800: if (!noExecute && eunlink(file) != -1) {
2801: Error("*** %s removed", file);
1.1 deraadt 2802: }
2803: }
2804: #ifdef RMT_WANTS_SIGNALS
2805: if (job->flags & JOB_REMOTE) {
2806: /*
2807: * If job is remote, let the Rmt module do the killing.
2808: */
1.2 deraadt 2809: if (!Rmt_Signal(job, signo)) {
1.1 deraadt 2810: /*
2811: * If couldn't kill the thing, finish it out now with an
2812: * error code, since no exit report will come in likely.
2813: */
1.2 deraadt 2814: int status;
1.1 deraadt 2815:
2816: status.w_status = 0;
2817: status.w_retcode = 1;
1.2 deraadt 2818: JobFinish(job, &status);
1.1 deraadt 2819: }
2820: } else if (job->pid) {
1.2 deraadt 2821: KILL(job->pid, signo);
1.1 deraadt 2822: }
2823: #else
2824: if (job->pid) {
1.2 deraadt 2825: if (DEBUG(JOB)) {
2826: (void) fprintf(stdout,
1.6 millert 2827: "JobInterrupt passing signal to child %d.\n",
1.2 deraadt 2828: job->pid);
2829: (void) fflush(stdout);
2830: }
2831: KILL(job->pid, signo);
2832: }
2833: #endif /* RMT_WANTS_SIGNALS */
2834: }
2835:
2836: #ifdef REMOTE
1.29 ! espie 2837: (void)Lst_Open(&stoppedJobs);
! 2838: while ((ln = Lst_Next(&stoppedJobs)) != NULL) {
1.2 deraadt 2839: job = (Job *) Lst_Datum(ln);
2840:
2841: if (job->flags & JOB_RESTART) {
2842: if (DEBUG(JOB)) {
2843: (void) fprintf(stdout, "%s%s",
2844: "JobInterrupt skipping job on stopped queue",
2845: "-- it was waiting to be restarted.\n");
2846: (void) fflush(stdout);
2847: }
2848: continue;
2849: }
2850: if (!Targ_Precious(job->node)) {
2851: char *file = (job->node->path == NULL ?
2852: job->node->name :
2853: job->node->path);
2854: if (eunlink(file) == 0) {
2855: Error("*** %s removed", file);
2856: }
2857: }
2858: /*
2859: * Resume the thing so it will take the signal.
2860: */
2861: if (DEBUG(JOB)) {
2862: (void) fprintf(stdout,
1.6 millert 2863: "JobInterrupt passing CONT to stopped child %d.\n",
1.2 deraadt 2864: job->pid);
2865: (void) fflush(stdout);
2866: }
2867: KILL(job->pid, SIGCONT);
2868: #ifdef RMT_WANTS_SIGNALS
2869: if (job->flags & JOB_REMOTE) {
2870: /*
2871: * If job is remote, let the Rmt module do the killing.
2872: */
2873: if (!Rmt_Signal(job, SIGINT)) {
2874: /*
2875: * If couldn't kill the thing, finish it out now with an
2876: * error code, since no exit report will come in likely.
2877: */
2878: int status;
2879: status.w_status = 0;
2880: status.w_retcode = 1;
2881: JobFinish(job, &status);
2882: }
2883: } else if (job->pid) {
2884: if (DEBUG(JOB)) {
2885: (void) fprintf(stdout,
2886: "JobInterrupt passing interrupt to stopped child %d.\n",
2887: job->pid);
2888: (void) fflush(stdout);
2889: }
1.1 deraadt 2890: KILL(job->pid, SIGINT);
2891: }
2892: #endif /* RMT_WANTS_SIGNALS */
2893: }
1.2 deraadt 2894: #endif
1.29 ! espie 2895: Lst_Close(&stoppedJobs);
1.1 deraadt 2896:
2897: if (runINTERRUPT && !touchFlag) {
1.2 deraadt 2898: interrupt = Targ_FindNode(".INTERRUPT", TARG_NOCREATE);
1.18 espie 2899: if (interrupt != NULL) {
1.1 deraadt 2900: ignoreErrors = FALSE;
2901:
1.2 deraadt 2902: JobStart(interrupt, JOB_IGNDOTS, (Job *)0);
1.1 deraadt 2903: while (nJobs) {
2904: Job_CatchOutput();
2905: #ifndef RMT_WILL_WATCH
1.2 deraadt 2906: Job_CatchChildren(!usePipes);
1.1 deraadt 2907: #endif /* RMT_WILL_WATCH */
2908: }
2909: }
2910: }
1.2 deraadt 2911: exit(signo);
1.1 deraadt 2912: }
2913:
2914: /*
2915: *-----------------------------------------------------------------------
1.12 espie 2916: * Job_Finish --
1.1 deraadt 2917: * Do final processing such as the running of the commands
1.6 millert 2918: * attached to the .END target.
1.1 deraadt 2919: *
2920: * Results:
2921: * Number of errors reported.
2922: *-----------------------------------------------------------------------
2923: */
2924: int
1.12 espie 2925: Job_Finish()
1.1 deraadt 2926: {
1.29 ! espie 2927: if (postCommands != NULL && !Lst_IsEmpty(&postCommands->commands)) {
1.1 deraadt 2928: if (errors) {
1.2 deraadt 2929: Error("Errors reported so .END ignored");
1.1 deraadt 2930: } else {
1.2 deraadt 2931: JobStart(postCommands, JOB_SPECIAL | JOB_IGNDOTS, NULL);
1.1 deraadt 2932:
2933: while (nJobs) {
2934: Job_CatchOutput();
2935: #ifndef RMT_WILL_WATCH
1.2 deraadt 2936: Job_CatchChildren(!usePipes);
1.1 deraadt 2937: #endif /* RMT_WILL_WATCH */
2938: }
2939: }
2940: }
2941: return(errors);
2942: }
2943:
1.12 espie 2944: /*-
2945: *-----------------------------------------------------------------------
2946: * Job_End --
2947: * Cleanup any memory used by the jobs module
2948: *
2949: * Results:
2950: * None.
2951: *
2952: * Side Effects:
2953: * Memory is freed
2954: *-----------------------------------------------------------------------
2955: */
2956: void
2957: Job_End()
2958: {
1.13 espie 2959: #ifdef CLEANUP
1.12 espie 2960: efree(shellArgv);
1.13 espie 2961: #endif
1.12 espie 2962: }
2963:
1.1 deraadt 2964: /*-
2965: *-----------------------------------------------------------------------
2966: * Job_Wait --
2967: * Waits for all running jobs to finish and returns. Sets 'aborting'
2968: * to ABORT_WAIT to prevent other jobs from starting.
2969: *
2970: * Results:
2971: * None.
2972: *
2973: * Side Effects:
2974: * Currently running jobs finish.
2975: *
2976: *-----------------------------------------------------------------------
2977: */
2978: void
2979: Job_Wait()
2980: {
2981: aborting = ABORT_WAIT;
2982: while (nJobs != 0) {
2983: Job_CatchOutput();
2984: #ifndef RMT_WILL_WATCH
2985: Job_CatchChildren(!usePipes);
2986: #endif /* RMT_WILL_WATCH */
2987: }
2988: aborting = 0;
2989: }
2990:
2991: /*-
2992: *-----------------------------------------------------------------------
2993: * Job_AbortAll --
2994: * Abort all currently running jobs without handling output or anything.
2995: * This function is to be called only in the event of a major
2996: * error. Most definitely NOT to be called from JobInterrupt.
2997: *
2998: * Results:
2999: * None
3000: *
3001: * Side Effects:
3002: * All children are killed, not just the firstborn
3003: *-----------------------------------------------------------------------
3004: */
3005: void
1.2 deraadt 3006: Job_AbortAll()
1.1 deraadt 3007: {
1.2 deraadt 3008: LstNode ln; /* element in job table */
1.1 deraadt 3009: Job *job; /* the job descriptor in that element */
3010: int foo;
1.6 millert 3011:
1.1 deraadt 3012: aborting = ABORT_ERROR;
1.6 millert 3013:
1.1 deraadt 3014: if (nJobs) {
3015:
1.29 ! espie 3016: (void) Lst_Open(&jobs);
! 3017: while ((ln = Lst_Next(&jobs)) != NULL) {
1.2 deraadt 3018: job = (Job *) Lst_Datum(ln);
1.1 deraadt 3019:
3020: /*
3021: * kill the child process with increasingly drastic signals to make
1.6 millert 3022: * darn sure it's dead.
1.1 deraadt 3023: */
3024: #ifdef RMT_WANTS_SIGNALS
3025: if (job->flags & JOB_REMOTE) {
3026: Rmt_Signal(job, SIGINT);
3027: Rmt_Signal(job, SIGKILL);
3028: } else {
3029: KILL(job->pid, SIGINT);
3030: KILL(job->pid, SIGKILL);
3031: }
3032: #else
3033: KILL(job->pid, SIGINT);
3034: KILL(job->pid, SIGKILL);
3035: #endif /* RMT_WANTS_SIGNALS */
3036: }
3037: }
1.6 millert 3038:
1.1 deraadt 3039: /*
3040: * Catch as many children as want to report in at first, then give up
3041: */
1.2 deraadt 3042: while (waitpid((pid_t) -1, &foo, WNOHANG) > 0)
1.1 deraadt 3043: continue;
1.2 deraadt 3044: }
3045:
3046: #ifdef REMOTE
3047: /*-
3048: *-----------------------------------------------------------------------
3049: * JobFlagForMigration --
3050: * Handle the eviction of a child. Called from RmtStatusChange.
3051: * Flags the child as remigratable and then suspends it.
3052: *
3053: * Results:
3054: * none.
3055: *
3056: * Side Effects:
3057: * The job descriptor is flagged for remigration.
3058: *
3059: *-----------------------------------------------------------------------
3060: */
3061: void
3062: JobFlagForMigration(hostID)
3063: int hostID; /* ID of host we used, for matching children. */
3064: {
3065: register Job *job; /* job descriptor for dead child */
3066: LstNode jnode; /* list element for finding job */
3067:
3068: if (DEBUG(JOB)) {
3069: (void) fprintf(stdout, "JobFlagForMigration(%d) called.\n", hostID);
3070: (void) fflush(stdout);
3071: }
1.29 ! espie 3072: jnode = Lst_Find(&jobs, JobCmpRmtID, &hostID);
1.2 deraadt 3073:
1.18 espie 3074: if (jnode == NULL) {
1.29 ! espie 3075: jnode = Lst_Find(&stoppedJobs, JobCmpRmtID, &hostID);
1.18 espie 3076: if (jnode == NULL) {
1.2 deraadt 3077: if (DEBUG(JOB)) {
3078: Error("Evicting host(%d) not in table", hostID);
3079: }
3080: return;
3081: }
3082: }
3083: job = (Job *) Lst_Datum(jnode);
3084:
3085: if (DEBUG(JOB)) {
3086: (void) fprintf(stdout,
3087: "JobFlagForMigration(%d) found job '%s'.\n", hostID,
3088: job->node->name);
3089: (void) fflush(stdout);
3090: }
3091:
3092: KILL(job->pid, SIGSTOP);
3093:
3094: job->flags |= JOB_REMIGRATE;
3095: }
3096:
3097: #endif
3098:
3099: /*-
3100: *-----------------------------------------------------------------------
3101: * JobRestartJobs --
3102: * Tries to restart stopped jobs if there are slots available.
3103: * Note that this tries to restart them regardless of pending errors.
3104: * It's not good to leave stopped jobs lying around!
3105: *
3106: * Results:
3107: * None.
3108: *
3109: * Side Effects:
3110: * Resumes(and possibly migrates) jobs.
3111: *
3112: *-----------------------------------------------------------------------
3113: */
3114: static void
3115: JobRestartJobs()
3116: {
1.19 espie 3117: Job *job;
3118:
1.29 ! espie 3119: while (!jobFull && (job = (Job *)Lst_DeQueue(&stoppedJobs)) != NULL) {
1.2 deraadt 3120: if (DEBUG(JOB)) {
3121: (void) fprintf(stdout,
3122: "Job queue is not full. Restarting a stopped job.\n");
3123: (void) fflush(stdout);
3124: }
1.19 espie 3125: JobRestart(job);
1.2 deraadt 3126: }
1.1 deraadt 3127: }
![[BACK]](/icons/back.gif){kind=icon}
Return to job.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / make