Annotation of src/usr.bin/make/job.c, Revision 1.25
1.25 ! espie 1: /* $OpenBSD: job.c,v 1.24 2000/03/26 16:08:27 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
1.25 ! espie 46: static char rcsid[] = "$OpenBSD: job.c,v 1.24 2000/03/26 16:08:27 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 */
226: STATIC Lst jobs; /* The structures that describe them */
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: */
1.2 deraadt 260: STATIC Lst 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:
1.1 deraadt 295: static int JobCondPassSig __P((ClientData, ClientData));
296: static void JobPassSig __P((int));
297: static int JobCmpPid __P((ClientData, ClientData));
298: static int JobPrintCommand __P((ClientData, ClientData));
299: static int JobSaveCommand __P((ClientData, ClientData));
1.2 deraadt 300: static void JobClose __P((Job *));
301: #ifdef REMOTE
1.24 espie 302: static int JobCmpRmtID __P((Job *, ClientData));
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: * Results:
326: * === 0
327: *
328: * Side Effects:
329: * None, except the job may bite it.
330: *
331: *-----------------------------------------------------------------------
332: */
333: static int
334: JobCondPassSig(jobp, signop)
335: ClientData jobp; /* Job to biff */
336: ClientData signop; /* Signal to send it */
337: {
338: Job *job = (Job *) jobp;
339: int signo = *(int *) signop;
340: #ifdef RMT_WANTS_SIGNALS
341: if (job->flags & JOB_REMOTE) {
1.2 deraadt 342: (void) Rmt_Signal(job, signo);
1.1 deraadt 343: } else {
344: KILL(job->pid, signo);
345: }
346: #else
347: /*
348: * Assume that sending the signal to job->pid will signal any remote
349: * job as well.
350: */
1.2 deraadt 351: if (DEBUG(JOB)) {
1.6 millert 352: (void) fprintf(stdout,
1.2 deraadt 353: "JobCondPassSig passing signal %d to child %d.\n",
354: signo, job->pid);
355: (void) fflush(stdout);
356: }
1.1 deraadt 357: KILL(job->pid, signo);
358: #endif
1.2 deraadt 359: return 0;
1.1 deraadt 360: }
361:
362: /*-
363: *-----------------------------------------------------------------------
364: * JobPassSig --
365: * Pass a signal on to all remote jobs and to all local jobs if
366: * USE_PGRP is defined, then die ourselves.
367: *
368: * Results:
369: * None.
370: *
371: * Side Effects:
372: * We die by the same signal.
1.6 millert 373: *
1.1 deraadt 374: *-----------------------------------------------------------------------
375: */
376: static void
377: JobPassSig(signo)
378: int signo; /* The signal number we've received */
379: {
1.2 deraadt 380: sigset_t nmask, omask;
1.3 niklas 381: struct sigaction act;
1.6 millert 382:
1.2 deraadt 383: if (DEBUG(JOB)) {
384: (void) fprintf(stdout, "JobPassSig(%d) called.\n", signo);
385: (void) fflush(stdout);
386: }
1.25 ! espie 387: Lst_ForEach(jobs, JobCondPassSig, &signo);
1.1 deraadt 388:
389: /*
390: * Deal with proper cleanup based on the signal received. We only run
391: * the .INTERRUPT target if the signal was in fact an interrupt. The other
392: * three termination signals are more of a "get out *now*" command.
393: */
394: if (signo == SIGINT) {
1.2 deraadt 395: JobInterrupt(TRUE, signo);
1.1 deraadt 396: } else if ((signo == SIGHUP) || (signo == SIGTERM) || (signo == SIGQUIT)) {
1.2 deraadt 397: JobInterrupt(FALSE, signo);
1.1 deraadt 398: }
1.6 millert 399:
1.1 deraadt 400: /*
401: * Leave gracefully if SIGQUIT, rather than core dumping.
402: */
403: if (signo == SIGQUIT) {
404: Finish(0);
405: }
1.6 millert 406:
1.1 deraadt 407: /*
408: * Send ourselves the signal now we've given the message to everyone else.
409: * Note we block everything else possible while we're getting the signal.
410: * This ensures that all our jobs get continued when we wake up before
411: * we take any other signal.
412: */
1.3 niklas 413: sigemptyset(&nmask);
414: sigaddset(&nmask, signo);
415: sigprocmask(SIG_SETMASK, &nmask, &omask);
1.10 deraadt 416: memset(&act, 0, sizeof act);
1.3 niklas 417: act.sa_handler = SIG_DFL;
418: sigemptyset(&act.sa_mask);
419: act.sa_flags = 0;
420: sigaction(signo, &act, NULL);
1.2 deraadt 421:
422: if (DEBUG(JOB)) {
423: (void) fprintf(stdout,
424: "JobPassSig passing signal to self, mask = %x.\n",
425: ~0 & ~(1 << (signo-1)));
426: (void) fflush(stdout);
427: }
428: (void) signal(signo, SIG_DFL);
1.1 deraadt 429:
1.2 deraadt 430: (void) KILL(getpid(), signo);
1.1 deraadt 431:
432: signo = SIGCONT;
1.25 ! espie 433: Lst_ForEach(jobs, JobCondPassSig, &signo);
1.1 deraadt 434:
1.2 deraadt 435: (void) sigprocmask(SIG_SETMASK, &omask, NULL);
1.3 niklas 436: sigprocmask(SIG_SETMASK, &omask, NULL);
437: act.sa_handler = JobPassSig;
438: sigaction(signo, &act, NULL);
1.1 deraadt 439: }
440:
441: /*-
442: *-----------------------------------------------------------------------
443: * JobCmpPid --
444: * Compare the pid of the job with the given pid and return 0 if they
445: * are equal. This function is called from Job_CatchChildren via
446: * Lst_Find to find the job descriptor of the finished job.
447: *
448: * Results:
449: * 0 if the pid's match
450: *
451: * Side Effects:
452: * None
453: *-----------------------------------------------------------------------
454: */
455: static int
1.2 deraadt 456: JobCmpPid(job, pid)
1.1 deraadt 457: ClientData job; /* job to examine */
458: ClientData pid; /* process id desired */
459: {
1.6 millert 460: return *(int *) pid - ((Job *) job)->pid;
1.1 deraadt 461: }
462:
1.2 deraadt 463: #ifdef REMOTE
464: /*-
465: *-----------------------------------------------------------------------
466: * JobCmpRmtID --
467: * Compare the rmtID of the job with the given rmtID and return 0 if they
1.6 millert 468: * are equal.
1.2 deraadt 469: *
470: * Results:
471: * 0 if the rmtID's match
472: *
473: * Side Effects:
474: * None.
475: *-----------------------------------------------------------------------
476: */
477: static int
478: JobCmpRmtID(job, rmtID)
479: ClientData job; /* job to examine */
480: ClientData rmtID; /* remote id desired */
481: {
1.24 espie 482: return *(int *) rmtID - *(int *) job->rmtID;
1.2 deraadt 483: }
484: #endif
485:
1.1 deraadt 486: /*-
487: *-----------------------------------------------------------------------
488: * JobPrintCommand --
489: * Put out another command for the given job. If the command starts
490: * with an @ or a - we process it specially. In the former case,
491: * so long as the -s and -n flags weren't given to make, we stick
492: * a shell-specific echoOff command in the script. In the latter,
493: * we ignore errors for the entire job, unless the shell has error
494: * control.
495: * If the command is just "..." we take all future commands for this
496: * job to be commands to be executed once the entire graph has been
497: * made and return non-zero to signal that the end of the commands
498: * was reached. These commands are later attached to the postCommands
499: * node and executed by Job_End when all things are done.
500: * This function is called from JobStart via Lst_ForEach.
501: *
502: * Results:
503: * Always 0, unless the command was "..."
504: *
505: * Side Effects:
506: * If the command begins with a '-' and the shell has no error control,
507: * the JOB_IGNERR flag is set in the job descriptor.
508: * If the command is "..." and we're not ignoring such things,
509: * tailCmds is set to the successor node of the cmd.
510: * numCommands is incremented if the command is actually printed.
511: *-----------------------------------------------------------------------
512: */
513: static int
1.2 deraadt 514: JobPrintCommand(cmdp, jobp)
1.1 deraadt 515: ClientData cmdp; /* command string to print */
516: ClientData jobp; /* job for which to print it */
517: {
518: Boolean noSpecials; /* true if we shouldn't worry about
519: * inserting special commands into
520: * the input stream. */
521: Boolean shutUp = FALSE; /* true if we put a no echo command
522: * into the command file */
523: Boolean errOff = FALSE; /* true if we turned error checking
524: * off before printing the command
525: * and need to turn it back on */
526: char *cmdTemplate; /* Template to use when printing the
527: * command */
528: char *cmdStart; /* Start of expanded command */
529: LstNode cmdNode; /* Node for replacing the command */
530: char *cmd = (char *) cmdp;
1.6 millert 531: Job *job = (Job *) jobp;
1.1 deraadt 532:
1.2 deraadt 533: noSpecials = (noExecute && !(job->node->type & OP_MAKE));
1.1 deraadt 534:
1.2 deraadt 535: if (strcmp(cmd, "...") == 0) {
1.6 millert 536: job->node->type |= OP_SAVE_CMDS;
1.1 deraadt 537: if ((job->flags & JOB_IGNDOTS) == 0) {
1.2 deraadt 538: job->tailCmds = Lst_Succ(Lst_Member(job->node->commands,
1.25 ! espie 539: cmd));
1.6 millert 540: return 1;
1.2 deraadt 541: }
1.6 millert 542: return 0;
1.1 deraadt 543: }
544:
1.2 deraadt 545: #define DBPRINTF(fmt, arg) if (DEBUG(JOB)) { \
546: (void) fprintf(stdout, fmt, arg); \
547: (void) fflush(stdout); \
548: } \
549: (void) fprintf(job->cmdFILE, fmt, arg); \
550: (void) fflush(job->cmdFILE);
1.1 deraadt 551:
552: numCommands += 1;
553:
554: /*
555: * For debugging, we replace each command with the result of expanding
556: * the variables in the command.
557: */
1.25 ! espie 558: cmdNode = Lst_Member(job->node->commands, cmd);
1.16 espie 559: cmdStart = cmd = Var_Subst(cmd, job->node, FALSE);
1.25 ! espie 560: Lst_Replace(cmdNode, cmdStart);
1.1 deraadt 561:
562: cmdTemplate = "%s\n";
563:
564: /*
565: * Check for leading @' and -'s to control echoing and error checking.
566: */
567: while (*cmd == '@' || *cmd == '-') {
568: if (*cmd == '@') {
569: shutUp = TRUE;
570: } else {
571: errOff = TRUE;
572: }
573: cmd++;
574: }
575:
576: while (isspace((unsigned char) *cmd))
577: cmd++;
578:
579: if (shutUp) {
1.2 deraadt 580: if (!(job->flags & JOB_SILENT) && !noSpecials &&
1.1 deraadt 581: commandShell->hasEchoCtl) {
1.2 deraadt 582: DBPRINTF("%s\n", commandShell->echoOff);
1.1 deraadt 583: } else {
584: shutUp = FALSE;
585: }
586: }
587:
588: if (errOff) {
1.2 deraadt 589: if ( !(job->flags & JOB_IGNERR) && !noSpecials) {
1.1 deraadt 590: if (commandShell->hasErrCtl) {
591: /*
592: * we don't want the error-control commands showing
593: * up either, so we turn off echoing while executing
594: * them. We could put another field in the shell
595: * structure to tell JobDoOutput to look for this
596: * string too, but why make it any more complex than
597: * it already is?
598: */
1.2 deraadt 599: if (!(job->flags & JOB_SILENT) && !shutUp &&
1.1 deraadt 600: commandShell->hasEchoCtl) {
1.2 deraadt 601: DBPRINTF("%s\n", commandShell->echoOff);
602: DBPRINTF("%s\n", commandShell->ignErr);
603: DBPRINTF("%s\n", commandShell->echoOn);
1.1 deraadt 604: } else {
1.2 deraadt 605: DBPRINTF("%s\n", commandShell->ignErr);
1.1 deraadt 606: }
607: } else if (commandShell->ignErr &&
1.2 deraadt 608: (*commandShell->ignErr != '\0'))
1.1 deraadt 609: {
610: /*
611: * The shell has no error control, so we need to be
612: * weird to get it to ignore any errors from the command.
613: * If echoing is turned on, we turn it off and use the
614: * errCheck template to echo the command. Leave echoing
615: * off so the user doesn't see the weirdness we go through
616: * to ignore errors. Set cmdTemplate to use the weirdness
617: * instead of the simple "%s\n" template.
618: */
1.2 deraadt 619: if (!(job->flags & JOB_SILENT) && !shutUp &&
1.1 deraadt 620: commandShell->hasEchoCtl) {
1.2 deraadt 621: DBPRINTF("%s\n", commandShell->echoOff);
622: DBPRINTF(commandShell->errCheck, cmd);
1.1 deraadt 623: shutUp = TRUE;
624: }
625: cmdTemplate = commandShell->ignErr;
626: /*
1.6 millert 627: * The error ignoration (hee hee) is already taken care
1.1 deraadt 628: * of by the ignErr template, so pretend error checking
629: * is still on.
630: */
631: errOff = FALSE;
632: } else {
633: errOff = FALSE;
634: }
635: } else {
636: errOff = FALSE;
637: }
638: }
1.6 millert 639:
1.2 deraadt 640: DBPRINTF(cmdTemplate, cmd);
1.6 millert 641:
1.1 deraadt 642: if (errOff) {
643: /*
644: * If echoing is already off, there's no point in issuing the
645: * echoOff command. Otherwise we issue it and pretend it was on
646: * for the whole command...
647: */
648: if (!shutUp && !(job->flags & JOB_SILENT) && commandShell->hasEchoCtl){
1.2 deraadt 649: DBPRINTF("%s\n", commandShell->echoOff);
1.1 deraadt 650: shutUp = TRUE;
651: }
1.2 deraadt 652: DBPRINTF("%s\n", commandShell->errCheck);
1.1 deraadt 653: }
654: if (shutUp) {
1.2 deraadt 655: DBPRINTF("%s\n", commandShell->echoOn);
1.1 deraadt 656: }
1.2 deraadt 657: return 0;
1.1 deraadt 658: }
659:
660: /*-
661: *-----------------------------------------------------------------------
662: * JobSaveCommand --
663: * Save a command to be executed when everything else is done.
664: * Callback function for JobFinish...
665: *
666: * Results:
667: * Always returns 0
668: *
669: * Side Effects:
670: * The command is tacked onto the end of postCommands's commands list.
671: *
672: *-----------------------------------------------------------------------
673: */
674: static int
1.2 deraadt 675: JobSaveCommand(cmd, gn)
1.1 deraadt 676: ClientData cmd;
677: ClientData gn;
678: {
1.16 espie 679: cmd = (ClientData) Var_Subst((char *) cmd, (GNode *) gn, FALSE);
1.20 espie 680: Lst_AtEnd(postCommands->commands, cmd);
1.2 deraadt 681: return(0);
682: }
683:
684:
685: /*-
686: *-----------------------------------------------------------------------
687: * JobClose --
688: * Called to close both input and output pipes when a job is finished.
689: *
690: * Results:
691: * Nada
692: *
693: * Side Effects:
694: * The file descriptors associated with the job are closed.
695: *
696: *-----------------------------------------------------------------------
697: */
698: static void
699: JobClose(job)
700: Job *job;
701: {
702: if (usePipes) {
703: #ifdef RMT_WILL_WATCH
704: Rmt_Ignore(job->inPipe);
705: #else
1.8 deraadt 706: FD_CLR(job->inPipe, outputsp);
1.2 deraadt 707: #endif
708: if (job->outPipe != job->inPipe) {
709: (void) close(job->outPipe);
710: }
711: JobDoOutput(job, TRUE);
712: (void) close(job->inPipe);
713: } else {
714: (void) close(job->outFd);
715: JobDoOutput(job, TRUE);
716: }
1.1 deraadt 717: }
718:
719: /*-
720: *-----------------------------------------------------------------------
721: * JobFinish --
722: * Do final processing for the given job including updating
723: * parents and starting new jobs as available/necessary. Note
724: * that we pay no attention to the JOB_IGNERR flag here.
725: * This is because when we're called because of a noexecute flag
726: * or something, jstat.w_status is 0 and when called from
727: * Job_CatchChildren, the status is zeroed if it s/b ignored.
728: *
729: * Results:
730: * None
731: *
732: * Side Effects:
733: * Some nodes may be put on the toBeMade queue.
734: * Final commands for the job are placed on postCommands.
735: *
1.6 millert 736: * If we got an error and are aborting (aborting == ABORT_ERROR) and
1.1 deraadt 737: * the job list is now empty, we are done for the day.
1.6 millert 738: * If we recognized an error (errors !=0), we set the aborting flag
1.1 deraadt 739: * to ABORT_ERROR so no more jobs will be started.
740: *-----------------------------------------------------------------------
741: */
742: /*ARGSUSED*/
743: static void
1.2 deraadt 744: JobFinish(job, status)
745: Job *job; /* job to finish */
746: int *status; /* sub-why job went away */
747: {
748: Boolean done;
749:
750: if ((WIFEXITED(*status) &&
751: (((WEXITSTATUS(*status) != 0) && !(job->flags & JOB_IGNERR)))) ||
752: (WIFSIGNALED(*status) && (WTERMSIG(*status) != SIGCONT)))
1.1 deraadt 753: {
754: /*
755: * If it exited non-zero and either we're doing things our
756: * way or we're not ignoring errors, the job is finished.
757: * Similarly, if the shell died because of a signal
758: * the job is also finished. In these
759: * cases, finish out the job's output before printing the exit
760: * status...
761: */
1.2 deraadt 762: #ifdef REMOTE
763: KILL(job->pid, SIGCONT);
764: #endif
765: JobClose(job);
1.1 deraadt 766: if (job->cmdFILE != NULL && job->cmdFILE != stdout) {
1.2 deraadt 767: (void) fclose(job->cmdFILE);
1.1 deraadt 768: }
769: done = TRUE;
1.2 deraadt 770: #ifdef REMOTE
771: if (job->flags & JOB_REMOTE)
772: Rmt_Done(job->rmtID, job->node);
773: #endif
774: } else if (WIFEXITED(*status)) {
1.1 deraadt 775: /*
776: * Deal with ignored errors in -B mode. We need to print a message
777: * telling of the ignored error as well as setting status.w_status
778: * to 0 so the next command gets run. To do this, we set done to be
1.2 deraadt 779: * TRUE if in -B mode and the job exited non-zero.
780: */
781: done = WEXITSTATUS(*status) != 0;
1.6 millert 782: /*
1.2 deraadt 783: * Old comment said: "Note we don't
1.1 deraadt 784: * want to close down any of the streams until we know we're at the
1.2 deraadt 785: * end."
786: * But we do. Otherwise when are we going to print the rest of the
787: * stuff?
788: */
789: JobClose(job);
790: #ifdef REMOTE
791: if (job->flags & JOB_REMOTE)
792: Rmt_Done(job->rmtID, job->node);
793: #endif /* REMOTE */
1.1 deraadt 794: } else {
795: /*
796: * No need to close things down or anything.
797: */
798: done = FALSE;
799: }
1.6 millert 800:
1.1 deraadt 801: if (done ||
1.2 deraadt 802: WIFSTOPPED(*status) ||
803: (WIFSIGNALED(*status) && (WTERMSIG(*status) == SIGCONT)) ||
1.1 deraadt 804: DEBUG(JOB))
805: {
806: FILE *out;
1.6 millert 807:
1.2 deraadt 808: if (compatMake && !usePipes && (job->flags & JOB_IGNERR)) {
1.1 deraadt 809: /*
810: * If output is going to a file and this job is ignoring
811: * errors, arrange to have the exit status sent to the
812: * output file as well.
813: */
1.2 deraadt 814: out = fdopen(job->outFd, "w");
1.1 deraadt 815: } else {
816: out = stdout;
817: }
818:
1.2 deraadt 819: if (WIFEXITED(*status)) {
820: if (DEBUG(JOB)) {
821: (void) fprintf(stdout, "Process %d exited.\n", job->pid);
822: (void) fflush(stdout);
823: }
824: if (WEXITSTATUS(*status) != 0) {
1.1 deraadt 825: if (usePipes && job->node != lastNode) {
1.2 deraadt 826: MESSAGE(out, job->node);
1.1 deraadt 827: lastNode = job->node;
828: }
1.2 deraadt 829: (void) fprintf(out, "*** Error code %d%s\n",
830: WEXITSTATUS(*status),
831: (job->flags & JOB_IGNERR) ? "(ignored)" : "");
1.1 deraadt 832:
833: if (job->flags & JOB_IGNERR) {
1.2 deraadt 834: *status = 0;
1.1 deraadt 835: }
836: } else if (DEBUG(JOB)) {
837: if (usePipes && job->node != lastNode) {
1.2 deraadt 838: MESSAGE(out, job->node);
1.1 deraadt 839: lastNode = job->node;
840: }
1.2 deraadt 841: (void) fprintf(out, "*** Completed successfully\n");
842: }
843: } else if (WIFSTOPPED(*status)) {
844: if (DEBUG(JOB)) {
845: (void) fprintf(stdout, "Process %d stopped.\n", job->pid);
846: (void) fflush(stdout);
1.1 deraadt 847: }
848: if (usePipes && job->node != lastNode) {
1.2 deraadt 849: MESSAGE(out, job->node);
1.1 deraadt 850: lastNode = job->node;
851: }
1.2 deraadt 852: if (!(job->flags & JOB_REMIGRATE)) {
1.6 millert 853: (void) fprintf(out, "*** Stopped -- signal %d\n",
854: WSTOPSIG(*status));
1.1 deraadt 855: }
856: job->flags |= JOB_RESUME;
1.25 ! espie 857: Lst_AtEnd(stoppedJobs, job);
1.2 deraadt 858: #ifdef REMOTE
859: if (job->flags & JOB_REMIGRATE)
860: JobRestart(job);
861: #endif
862: (void) fflush(out);
1.1 deraadt 863: return;
1.2 deraadt 864: } else if (WTERMSIG(*status) == SIGCONT) {
1.1 deraadt 865: /*
866: * If the beastie has continued, shift the Job from the stopped
1.6 millert 867: * list to the running one (or re-stop it if concurrency is
1.1 deraadt 868: * exceeded) and go and get another child.
869: */
870: if (job->flags & (JOB_RESUME|JOB_REMIGRATE|JOB_RESTART)) {
871: if (usePipes && job->node != lastNode) {
1.2 deraadt 872: MESSAGE(out, job->node);
1.1 deraadt 873: lastNode = job->node;
874: }
1.2 deraadt 875: (void) fprintf(out, "*** Continued\n");
1.1 deraadt 876: }
1.2 deraadt 877: if (!(job->flags & JOB_CONTINUING)) {
878: if (DEBUG(JOB)) {
879: (void) fprintf(stdout,
880: "Warning: process %d was not continuing.\n",
881: job->pid);
882: (void) fflush(stdout);
883: }
884: #ifdef notdef
885: /*
886: * We don't really want to restart a job from scratch just
887: * because it continued, especially not without killing the
888: * continuing process! That's why this is ifdef'ed out.
889: * FD - 9/17/90
890: */
1.1 deraadt 891: JobRestart(job);
1.2 deraadt 892: #endif
893: }
894: job->flags &= ~JOB_CONTINUING;
1.25 ! espie 895: Lst_AtEnd(jobs, job);
1.2 deraadt 896: nJobs += 1;
897: if (!(job->flags & JOB_REMOTE)) {
898: if (DEBUG(JOB)) {
899: (void) fprintf(stdout,
900: "Process %d is continuing locally.\n",
901: job->pid);
902: (void) fflush(stdout);
903: }
904: nLocal += 1;
1.1 deraadt 905: }
1.2 deraadt 906: if (nJobs == maxJobs) {
907: jobFull = TRUE;
908: if (DEBUG(JOB)) {
909: (void) fprintf(stdout, "Job queue is full.\n");
910: (void) fflush(stdout);
911: }
912: }
913: (void) fflush(out);
914: return;
1.1 deraadt 915: } else {
916: if (usePipes && job->node != lastNode) {
1.2 deraadt 917: MESSAGE(out, job->node);
1.1 deraadt 918: lastNode = job->node;
919: }
1.2 deraadt 920: (void) fprintf(out, "*** Signal %d\n", WTERMSIG(*status));
1.1 deraadt 921: }
922:
1.2 deraadt 923: (void) fflush(out);
1.1 deraadt 924: }
925:
926: /*
927: * Now handle the -B-mode stuff. If the beast still isn't finished,
928: * try and restart the job on the next command. If JobStart says it's
929: * ok, it's ok. If there's an error, this puppy is done.
930: */
1.2 deraadt 931: if (compatMake && (WIFEXITED(*status) &&
932: !Lst_IsAtEnd(job->node->commands))) {
933: switch (JobStart(job->node, job->flags & JOB_IGNDOTS, job)) {
934: case JOB_RUNNING:
935: done = FALSE;
936: break;
937: case JOB_ERROR:
938: done = TRUE;
939: W_SETEXITSTATUS(status, 1);
940: break;
941: case JOB_FINISHED:
942: /*
943: * If we got back a JOB_FINISHED code, JobStart has already
944: * called Make_Update and freed the job descriptor. We set
945: * done to false here to avoid fake cycles and double frees.
946: * JobStart needs to do the update so we can proceed up the
947: * graph when given the -n flag..
948: */
949: done = FALSE;
950: break;
1.1 deraadt 951: }
952: } else {
953: done = TRUE;
954: }
1.6 millert 955:
1.1 deraadt 956:
957: if (done &&
958: (aborting != ABORT_ERROR) &&
959: (aborting != ABORT_INTERRUPT) &&
1.2 deraadt 960: (*status == 0))
1.1 deraadt 961: {
962: /*
963: * As long as we aren't aborting and the job didn't return a non-zero
964: * status that we shouldn't ignore, we call Make_Update to update
965: * the parents. In addition, any saved commands for the node are placed
966: * on the .END target.
967: */
1.18 espie 968: if (job->tailCmds != NULL) {
1.2 deraadt 969: Lst_ForEachFrom(job->node->commands, job->tailCmds,
1.1 deraadt 970: JobSaveCommand,
1.25 ! espie 971: job->node);
1.1 deraadt 972: }
973: job->node->made = MADE;
1.2 deraadt 974: Make_Update(job->node);
1.1 deraadt 975: free((Address)job);
1.5 briggs 976: } else if (*status != 0) {
1.1 deraadt 977: errors += 1;
978: free((Address)job);
979: }
980:
1.2 deraadt 981: JobRestartJobs();
1.1 deraadt 982:
983: /*
984: * Set aborting if any error.
985: */
986: if (errors && !keepgoing && (aborting != ABORT_INTERRUPT)) {
987: /*
988: * If we found any errors in this batch of children and the -k flag
989: * wasn't given, we set the aborting flag so no more jobs get
990: * started.
991: */
992: aborting = ABORT_ERROR;
993: }
1.6 millert 994:
1.22 espie 995: if ((aborting == ABORT_ERROR) && Job_Empty())
1.1 deraadt 996: /*
997: * If we are aborting and the job table is now empty, we finish.
998: */
1.2 deraadt 999: Finish(errors);
1.1 deraadt 1000: }
1001:
1002: /*-
1003: *-----------------------------------------------------------------------
1004: * Job_Touch --
1005: * Touch the given target. Called by JobStart when the -t flag was
1006: * given
1007: *
1008: * Results:
1009: * None
1010: *
1011: * Side Effects:
1012: * The data modification of the file is changed. In addition, if the
1013: * file did not exist, it is created.
1014: *-----------------------------------------------------------------------
1015: */
1016: void
1.2 deraadt 1017: Job_Touch(gn, silent)
1.1 deraadt 1018: GNode *gn; /* the node of the file to touch */
1019: Boolean silent; /* TRUE if should not print messages */
1020: {
1021: int streamID; /* ID of stream opened to do the touch */
1.3 niklas 1022: struct utimbuf times; /* Times for utime() call */
1.1 deraadt 1023:
1024: if (gn->type & (OP_JOIN|OP_USE|OP_EXEC|OP_OPTIONAL)) {
1025: /*
1026: * .JOIN, .USE, .ZEROTIME and .OPTIONAL targets are "virtual" targets
1027: * and, as such, shouldn't really be created.
1028: */
1029: return;
1030: }
1.6 millert 1031:
1.1 deraadt 1032: if (!silent) {
1.2 deraadt 1033: (void) fprintf(stdout, "touch %s\n", gn->name);
1034: (void) fflush(stdout);
1.1 deraadt 1035: }
1036:
1037: if (noExecute) {
1038: return;
1039: }
1040:
1041: if (gn->type & OP_ARCHV) {
1.2 deraadt 1042: Arch_Touch(gn);
1.1 deraadt 1043: } else if (gn->type & OP_LIB) {
1.2 deraadt 1044: Arch_TouchLib(gn);
1.1 deraadt 1045: } else {
1046: char *file = gn->path ? gn->path : gn->name;
1047:
1.3 niklas 1048: times.actime = times.modtime = now;
1049: if (utime(file, ×) < 0){
1.2 deraadt 1050: streamID = open(file, O_RDWR | O_CREAT, 0666);
1.1 deraadt 1051:
1052: if (streamID >= 0) {
1053: char c;
1054:
1055: /*
1056: * Read and write a byte to the file to change the
1057: * modification time, then close the file.
1058: */
1059: if (read(streamID, &c, 1) == 1) {
1.11 millert 1060: (void) lseek(streamID, 0, SEEK_SET);
1.2 deraadt 1061: (void) write(streamID, &c, 1);
1.1 deraadt 1062: }
1.6 millert 1063:
1.2 deraadt 1064: (void) close(streamID);
1065: } else {
1066: (void) fprintf(stdout, "*** couldn't touch %s: %s",
1067: file, strerror(errno));
1068: (void) fflush(stdout);
1069: }
1.1 deraadt 1070: }
1071: }
1072: }
1073:
1074: /*-
1075: *-----------------------------------------------------------------------
1076: * Job_CheckCommands --
1.6 millert 1077: * Make sure the given node has all the commands it needs.
1.1 deraadt 1078: *
1079: * Results:
1080: * TRUE if the commands list is/was ok.
1081: *
1082: * Side Effects:
1083: * The node will have commands from the .DEFAULT rule added to it
1084: * if it needs them.
1085: *-----------------------------------------------------------------------
1086: */
1087: Boolean
1.2 deraadt 1088: Job_CheckCommands(gn, abortProc)
1.1 deraadt 1089: GNode *gn; /* The target whose commands need
1090: * verifying */
1.6 millert 1091: void (*abortProc) __P((char *, ...));
1.1 deraadt 1092: /* Function to abort with message */
1093: {
1.2 deraadt 1094: if (OP_NOP(gn->type) && Lst_IsEmpty(gn->commands) &&
1.1 deraadt 1095: (gn->type & OP_LIB) == 0) {
1096: /*
1097: * No commands. Look for .DEFAULT rule from which we might infer
1.6 millert 1098: * commands
1.1 deraadt 1099: */
1.18 espie 1100: if ((DEFAULT != NULL) && !Lst_IsEmpty(DEFAULT->commands)) {
1.1 deraadt 1101: /*
1102: * Make only looks for a .DEFAULT if the node was never the
1103: * target of an operator, so that's what we do too. If
1104: * a .DEFAULT was given, we substitute its commands for gn's
1105: * commands and set the IMPSRC variable to be the target's name
1106: * The DEFAULT node acts like a transformation rule, in that
1107: * gn also inherits any attributes or sources attached to
1108: * .DEFAULT itself.
1109: */
1110: Make_HandleUse(DEFAULT, gn);
1.15 espie 1111: Var_Set(IMPSRC, Var_Value(TARGET, gn), gn);
1.2 deraadt 1112: } else if (Dir_MTime(gn) == 0) {
1.1 deraadt 1113: /*
1114: * The node wasn't the target of an operator we have no .DEFAULT
1115: * rule to go on and the target doesn't already exist. There's
1116: * nothing more we can do for this branch. If the -k flag wasn't
1117: * given, we stop in our tracks, otherwise we just don't update
1.6 millert 1118: * this node's parents so they never get examined.
1.1 deraadt 1119: */
1.2 deraadt 1120: static const char msg[] = "make: don't know how to make";
1121:
1.1 deraadt 1122: if (gn->type & OP_OPTIONAL) {
1.2 deraadt 1123: (void) fprintf(stdout, "%s %s(ignored)\n", msg, gn->name);
1124: (void) fflush(stdout);
1.1 deraadt 1125: } else if (keepgoing) {
1.2 deraadt 1126: (void) fprintf(stdout, "%s %s(continuing)\n", msg, gn->name);
1127: (void) fflush(stdout);
1128: return FALSE;
1.1 deraadt 1129: } else {
1.2 deraadt 1130: (*abortProc)("%s %s. Stop", msg, gn->name);
1131: return FALSE;
1.1 deraadt 1132: }
1133: }
1134: }
1.2 deraadt 1135: return TRUE;
1.1 deraadt 1136: }
1137: #ifdef RMT_WILL_WATCH
1138: /*-
1139: *-----------------------------------------------------------------------
1140: * JobLocalInput --
1141: * Handle a pipe becoming readable. Callback function for Rmt_Watch
1142: *
1143: * Results:
1144: * None
1145: *
1146: * Side Effects:
1147: * JobDoOutput is called.
1.6 millert 1148: *
1.1 deraadt 1149: *-----------------------------------------------------------------------
1150: */
1151: /*ARGSUSED*/
1152: static void
1153: JobLocalInput(stream, job)
1.6 millert 1154: int stream; /* Stream that's ready (ignored) */
1.1 deraadt 1155: Job *job; /* Job to which the stream belongs */
1156: {
1157: JobDoOutput(job, FALSE);
1158: }
1159: #endif /* RMT_WILL_WATCH */
1160:
1161: /*-
1162: *-----------------------------------------------------------------------
1163: * JobExec --
1164: * Execute the shell for the given job. Called from JobStart and
1165: * JobRestart.
1166: *
1167: * Results:
1168: * None.
1169: *
1170: * Side Effects:
1171: * A shell is executed, outputs is altered and the Job structure added
1172: * to the job table.
1173: *
1174: *-----------------------------------------------------------------------
1175: */
1176: static void
1177: JobExec(job, argv)
1178: Job *job; /* Job to execute */
1179: char **argv;
1180: {
1181: int cpid; /* ID of new child */
1.6 millert 1182:
1.1 deraadt 1183: if (DEBUG(JOB)) {
1184: int i;
1.6 millert 1185:
1.2 deraadt 1186: (void) fprintf(stdout, "Running %s %sly\n", job->node->name,
1187: job->flags&JOB_REMOTE?"remote":"local");
1188: (void) fprintf(stdout, "\tCommand: ");
1189: for (i = 0; argv[i] != NULL; i++) {
1190: (void) fprintf(stdout, "%s ", argv[i]);
1.1 deraadt 1191: }
1.2 deraadt 1192: (void) fprintf(stdout, "\n");
1193: (void) fflush(stdout);
1.1 deraadt 1194: }
1.6 millert 1195:
1.1 deraadt 1196: /*
1197: * Some jobs produce no output and it's disconcerting to have
1.6 millert 1198: * no feedback of their running (since they produce no output, the
1.1 deraadt 1199: * banner with their name in it never appears). This is an attempt to
1200: * provide that feedback, even if nothing follows it.
1201: */
1202: if ((lastNode != job->node) && (job->flags & JOB_FIRST) &&
1.2 deraadt 1203: !(job->flags & JOB_SILENT)) {
1204: MESSAGE(stdout, job->node);
1.1 deraadt 1205: lastNode = job->node;
1206: }
1.6 millert 1207:
1.1 deraadt 1208: #ifdef RMT_NO_EXEC
1209: if (job->flags & JOB_REMOTE) {
1210: goto jobExecFinish;
1211: }
1212: #endif /* RMT_NO_EXEC */
1213:
1.2 deraadt 1214: if ((cpid = vfork()) == -1) {
1215: Punt("Cannot fork");
1.1 deraadt 1216: } else if (cpid == 0) {
1217:
1218: /*
1219: * Must duplicate the input stream down to the child's input and
1.6 millert 1220: * reset it to the beginning (again). Since the stream was marked
1.1 deraadt 1221: * close-on-exec, we must clear that bit in the new input.
1222: */
1.2 deraadt 1223: if (dup2(FILENO(job->cmdFILE), 0) == -1)
1224: Punt("Cannot dup2: %s", strerror(errno));
1225: (void) fcntl(0, F_SETFD, 0);
1.11 millert 1226: (void) lseek(0, 0, SEEK_SET);
1.6 millert 1227:
1.1 deraadt 1228: if (usePipes) {
1229: /*
1230: * Set up the child's output to be routed through the pipe
1231: * we've created for it.
1232: */
1.2 deraadt 1233: if (dup2(job->outPipe, 1) == -1)
1234: Punt("Cannot dup2: %s", strerror(errno));
1.1 deraadt 1235: } else {
1236: /*
1237: * We're capturing output in a file, so we duplicate the
1238: * descriptor to the temporary file into the standard
1239: * output.
1240: */
1.2 deraadt 1241: if (dup2(job->outFd, 1) == -1)
1242: Punt("Cannot dup2: %s", strerror(errno));
1.1 deraadt 1243: }
1244: /*
1245: * The output channels are marked close on exec. This bit was
1.6 millert 1246: * duplicated by the dup2 (on some systems), so we have to clear
1.1 deraadt 1247: * it before routing the shell's error output to the same place as
1248: * its standard output.
1249: */
1.2 deraadt 1250: (void) fcntl(1, F_SETFD, 0);
1251: if (dup2(1, 2) == -1)
1252: Punt("Cannot dup2: %s", strerror(errno));
1.1 deraadt 1253:
1254: #ifdef USE_PGRP
1255: /*
1256: * We want to switch the child into a different process family so
1257: * we can kill it and all its descendants in one fell swoop,
1258: * by killing its process family, but not commit suicide.
1259: */
1.2 deraadt 1260: # if defined(SYSV)
1261: (void) setsid();
1262: # else
1263: (void) setpgid(0, getpid());
1264: # endif
1265: #endif /* USE_PGRP */
1.1 deraadt 1266:
1.2 deraadt 1267: #ifdef REMOTE
1268: if (job->flags & JOB_REMOTE) {
1269: Rmt_Exec(shellPath, argv, FALSE);
1.6 millert 1270: } else
1.2 deraadt 1271: #endif /* REMOTE */
1272: (void) execv(shellPath, argv);
1273:
1274: (void) write(2, "Could not execute shell\n",
1275: sizeof("Could not execute shell"));
1276: _exit(1);
1.1 deraadt 1277: } else {
1.2 deraadt 1278: #ifdef REMOTE
1.8 deraadt 1279: int omask = sigblock(sigmask(SIGCHLD));
1.2 deraadt 1280: #endif
1.1 deraadt 1281: job->pid = cpid;
1282:
1283: if (usePipes && (job->flags & JOB_FIRST) ) {
1284: /*
1285: * The first time a job is run for a node, we set the current
1286: * position in the buffer to the beginning and mark another
1287: * stream to watch in the outputs mask
1288: */
1289: job->curPos = 0;
1.6 millert 1290:
1.1 deraadt 1291: #ifdef RMT_WILL_WATCH
1292: Rmt_Watch(job->inPipe, JobLocalInput, job);
1293: #else
1.8 deraadt 1294: if (outputsp == NULL || job->inPipe > outputsn) {
1295: int bytes = howmany(job->inPipe+1, NFDBITS) * sizeof(fd_mask);
1296: int obytes = howmany(outputsn+1, NFDBITS) * sizeof(fd_mask);
1297:
1.9 flipk 1298: if (outputsp == NULL || obytes != bytes) {
1.8 deraadt 1299: outputsp = realloc(outputsp, bytes);
1300: if (outputsp == NULL)
1301: return;
1302: memset(outputsp + obytes, 0, bytes - obytes);
1303: }
1304: outputsn = job->inPipe;
1305: }
1306: FD_SET(job->inPipe, outputsp);
1.1 deraadt 1307: #endif /* RMT_WILL_WATCH */
1308: }
1309:
1310: if (job->flags & JOB_REMOTE) {
1.2 deraadt 1311: #ifndef REMOTE
1.1 deraadt 1312: job->rmtID = 0;
1.2 deraadt 1313: #else
1314: job->rmtID = Rmt_LastID(job->pid);
1315: #endif /* REMOTE */
1.1 deraadt 1316: } else {
1317: nLocal += 1;
1318: /*
1.2 deraadt 1319: * XXX: Used to not happen if REMOTE. Why?
1.1 deraadt 1320: */
1.2 deraadt 1321: if (job->cmdFILE != NULL && job->cmdFILE != stdout) {
1322: (void) fclose(job->cmdFILE);
1.1 deraadt 1323: job->cmdFILE = NULL;
1324: }
1325: }
1.2 deraadt 1326: #ifdef REMOTE
1327: (void) sigsetmask(omask);
1328: #endif
1.1 deraadt 1329: }
1330:
1331: #ifdef RMT_NO_EXEC
1.6 millert 1332: jobExecFinish:
1.1 deraadt 1333: #endif
1334: /*
1335: * Now the job is actually running, add it to the table.
1336: */
1337: nJobs += 1;
1.25 ! espie 1338: Lst_AtEnd(jobs, job);
1.1 deraadt 1339: if (nJobs == maxJobs) {
1340: jobFull = TRUE;
1341: }
1342: }
1343:
1344: /*-
1345: *-----------------------------------------------------------------------
1346: * JobMakeArgv --
1347: * Create the argv needed to execute the shell for a given job.
1.6 millert 1348: *
1.1 deraadt 1349: *
1350: * Results:
1351: *
1352: * Side Effects:
1353: *
1354: *-----------------------------------------------------------------------
1355: */
1356: static void
1357: JobMakeArgv(job, argv)
1358: Job *job;
1359: char **argv;
1360: {
1361: int argc;
1362: static char args[10]; /* For merged arguments */
1.6 millert 1363:
1.1 deraadt 1364: argv[0] = shellName;
1365: argc = 1;
1366:
1367: if ((commandShell->exit && (*commandShell->exit != '-')) ||
1368: (commandShell->echo && (*commandShell->echo != '-')))
1369: {
1370: /*
1371: * At least one of the flags doesn't have a minus before it, so
1372: * merge them together. Have to do this because the *(&(@*#*&#$#
1373: * Bourne shell thinks its second argument is a file to source.
1374: * Grrrr. Note the ten-character limitation on the combined arguments.
1375: */
1376: (void)sprintf(args, "-%s%s",
1377: ((job->flags & JOB_IGNERR) ? "" :
1378: (commandShell->exit ? commandShell->exit : "")),
1379: ((job->flags & JOB_SILENT) ? "" :
1380: (commandShell->echo ? commandShell->echo : "")));
1381:
1382: if (args[1]) {
1383: argv[argc] = args;
1384: argc++;
1385: }
1386: } else {
1387: if (!(job->flags & JOB_IGNERR) && commandShell->exit) {
1388: argv[argc] = commandShell->exit;
1389: argc++;
1390: }
1391: if (!(job->flags & JOB_SILENT) && commandShell->echo) {
1392: argv[argc] = commandShell->echo;
1393: argc++;
1394: }
1395: }
1.2 deraadt 1396: argv[argc] = NULL;
1.1 deraadt 1397: }
1398:
1399: /*-
1400: *-----------------------------------------------------------------------
1401: * JobRestart --
1.6 millert 1402: * Restart a job that stopped for some reason.
1.1 deraadt 1403: *
1404: * Results:
1405: * None.
1406: *
1407: * Side Effects:
1408: * jobFull will be set if the job couldn't be run.
1409: *
1410: *-----------------------------------------------------------------------
1411: */
1412: static void
1413: JobRestart(job)
1414: Job *job; /* Job to restart */
1415: {
1.2 deraadt 1416: #ifdef REMOTE
1417: int host;
1418: #endif
1.6 millert 1419:
1.1 deraadt 1420: if (job->flags & JOB_REMIGRATE) {
1.2 deraadt 1421: if (
1422: #ifdef REMOTE
1423: verboseRemigrates ||
1424: #endif
1425: DEBUG(JOB)) {
1426: (void) fprintf(stdout, "*** remigrating %x(%s)\n",
1427: job->pid, job->node->name);
1428: (void) fflush(stdout);
1.1 deraadt 1429: }
1.2 deraadt 1430:
1431: #ifdef REMOTE
1432: if (!Rmt_ReExport(job->pid, job->node, &host)) {
1433: if (verboseRemigrates || DEBUG(JOB)) {
1434: (void) fprintf(stdout, "*** couldn't migrate...\n");
1435: (void) fflush(stdout);
1436: }
1437: #endif
1438: if (nLocal != maxLocal) {
1.1 deraadt 1439: /*
1440: * Job cannot be remigrated, but there's room on the local
1441: * machine, so resume the job and note that another
1442: * local job has started.
1443: */
1.2 deraadt 1444: if (
1445: #ifdef REMOTE
1446: verboseRemigrates ||
1447: #endif
1448: DEBUG(JOB)) {
1449: (void) fprintf(stdout, "*** resuming on local machine\n");
1450: (void) fflush(stdout);
1451: }
1.1 deraadt 1452: KILL(job->pid, SIGCONT);
1453: nLocal +=1;
1.2 deraadt 1454: #ifdef REMOTE
1455: job->flags &= ~(JOB_REMIGRATE|JOB_RESUME|JOB_REMOTE);
1456: job->flags |= JOB_CONTINUING;
1457: #else
1.1 deraadt 1458: job->flags &= ~(JOB_REMIGRATE|JOB_RESUME);
1.2 deraadt 1459: #endif
1.1 deraadt 1460: } else {
1461: /*
1462: * Job cannot be restarted. Mark the table as full and
1463: * place the job back on the list of stopped jobs.
1464: */
1.2 deraadt 1465: if (
1466: #ifdef REMOTE
1467: verboseRemigrates ||
1468: #endif
1469: DEBUG(JOB)) {
1470: (void) fprintf(stdout, "*** holding\n");
1471: (void) fflush(stdout);
1472: }
1.25 ! espie 1473: Lst_AtFront(stoppedJobs, job);
1.1 deraadt 1474: jobFull = TRUE;
1475: if (DEBUG(JOB)) {
1.2 deraadt 1476: (void) fprintf(stdout, "Job queue is full.\n");
1477: (void) fflush(stdout);
1.1 deraadt 1478: }
1479: return;
1.2 deraadt 1480: }
1481: #ifdef REMOTE
1482: } else {
1483: /*
1484: * Clear out the remigrate and resume flags. Set the continuing
1485: * flag so we know later on that the process isn't exiting just
1486: * because of a signal.
1487: */
1488: job->flags &= ~(JOB_REMIGRATE|JOB_RESUME);
1489: job->flags |= JOB_CONTINUING;
1490: job->rmtID = host;
1.1 deraadt 1491: }
1.2 deraadt 1492: #endif
1.6 millert 1493:
1.25 ! espie 1494: Lst_AtEnd(jobs, job);
1.1 deraadt 1495: nJobs += 1;
1496: if (nJobs == maxJobs) {
1497: jobFull = TRUE;
1498: if (DEBUG(JOB)) {
1.2 deraadt 1499: (void) fprintf(stdout, "Job queue is full.\n");
1500: (void) fflush(stdout);
1.1 deraadt 1501: }
1502: }
1503: } else if (job->flags & JOB_RESTART) {
1504: /*
1505: * Set up the control arguments to the shell. This is based on the
1506: * flags set earlier for this job. If the JOB_IGNERR flag is clear,
1507: * the 'exit' flag of the commandShell is used to cause it to exit
1508: * upon receiving an error. If the JOB_SILENT flag is clear, the
1509: * 'echo' flag of the commandShell is used to get it to start echoing
1.6 millert 1510: * as soon as it starts processing commands.
1.1 deraadt 1511: */
1512: char *argv[4];
1.6 millert 1513:
1.1 deraadt 1514: JobMakeArgv(job, argv);
1.2 deraadt 1515:
1.1 deraadt 1516: if (DEBUG(JOB)) {
1.2 deraadt 1517: (void) fprintf(stdout, "Restarting %s...", job->node->name);
1518: (void) fflush(stdout);
1.1 deraadt 1519: }
1.2 deraadt 1520: #ifdef REMOTE
1521: if ((job->node->type&OP_NOEXPORT) ||
1.6 millert 1522: (nLocal < maxLocal && runLocalFirst)
1.2 deraadt 1523: # ifdef RMT_NO_EXEC
1524: || !Rmt_Export(shellPath, argv, job)
1525: # else
1526: || !Rmt_Begin(shellPath, argv, job->node)
1527: # endif
1528: #endif
1529: {
1530: if (((nLocal >= maxLocal) && !(job->flags & JOB_SPECIAL))) {
1.1 deraadt 1531: /*
1532: * Can't be exported and not allowed to run locally -- put it
1533: * back on the hold queue and mark the table full
1534: */
1535: if (DEBUG(JOB)) {
1.2 deraadt 1536: (void) fprintf(stdout, "holding\n");
1537: (void) fflush(stdout);
1.1 deraadt 1538: }
1.25 ! espie 1539: Lst_AtFront(stoppedJobs, job);
1.1 deraadt 1540: jobFull = TRUE;
1541: if (DEBUG(JOB)) {
1.2 deraadt 1542: (void) fprintf(stdout, "Job queue is full.\n");
1543: (void) fflush(stdout);
1.1 deraadt 1544: }
1545: return;
1.2 deraadt 1546: } else {
1.1 deraadt 1547: /*
1548: * Job may be run locally.
1549: */
1550: if (DEBUG(JOB)) {
1.2 deraadt 1551: (void) fprintf(stdout, "running locally\n");
1552: (void) fflush(stdout);
1.1 deraadt 1553: }
1554: job->flags &= ~JOB_REMOTE;
1.2 deraadt 1555: }
1556: }
1557: #ifdef REMOTE
1558: else {
1559: /*
1560: * Can be exported. Hooray!
1561: */
1562: if (DEBUG(JOB)) {
1563: (void) fprintf(stdout, "exporting\n");
1564: (void) fflush(stdout);
1565: }
1566: job->flags |= JOB_REMOTE;
1.1 deraadt 1567: }
1.2 deraadt 1568: #endif
1.1 deraadt 1569: JobExec(job, argv);
1570: } else {
1571: /*
1572: * The job has stopped and needs to be restarted. Why it stopped,
1573: * we don't know...
1574: */
1575: if (DEBUG(JOB)) {
1.2 deraadt 1576: (void) fprintf(stdout, "Resuming %s...", job->node->name);
1577: (void) fflush(stdout);
1.1 deraadt 1578: }
1579: if (((job->flags & JOB_REMOTE) ||
1.2 deraadt 1580: (nLocal < maxLocal) ||
1581: #ifdef REMOTE
1582: (((job->flags & JOB_SPECIAL) &&
1583: (job->node->type & OP_NOEXPORT)) &&
1584: (maxLocal == 0))) &&
1585: #else
1586: ((job->flags & JOB_SPECIAL) &&
1587: (maxLocal == 0))) &&
1588: #endif
1589: (nJobs != maxJobs))
1.1 deraadt 1590: {
1591: /*
1592: * If the job is remote, it's ok to resume it as long as the
1593: * maximum concurrency won't be exceeded. If it's local and
1.6 millert 1594: * we haven't reached the local concurrency limit already (or the
1.1 deraadt 1595: * job must be run locally and maxLocal is 0), it's also ok to
1596: * resume it.
1597: */
1598: Boolean error;
1.2 deraadt 1599: int status;
1.6 millert 1600:
1.1 deraadt 1601: #ifdef RMT_WANTS_SIGNALS
1602: if (job->flags & JOB_REMOTE) {
1603: error = !Rmt_Signal(job, SIGCONT);
1604: } else
1605: #endif /* RMT_WANTS_SIGNALS */
1606: error = (KILL(job->pid, SIGCONT) != 0);
1607:
1608: if (!error) {
1609: /*
1610: * Make sure the user knows we've continued the beast and
1611: * actually put the thing in the job table.
1612: */
1613: job->flags |= JOB_CONTINUING;
1.2 deraadt 1614: W_SETTERMSIG(&status, SIGCONT);
1615: JobFinish(job, &status);
1.6 millert 1616:
1.1 deraadt 1617: job->flags &= ~(JOB_RESUME|JOB_CONTINUING);
1618: if (DEBUG(JOB)) {
1.2 deraadt 1619: (void) fprintf(stdout, "done\n");
1620: (void) fflush(stdout);
1.1 deraadt 1621: }
1622: } else {
1623: Error("couldn't resume %s: %s",
1624: job->node->name, strerror(errno));
1.2 deraadt 1625: status = 0;
1626: W_SETEXITSTATUS(&status, 1);
1627: JobFinish(job, &status);
1.1 deraadt 1628: }
1629: } else {
1630: /*
1631: * Job cannot be restarted. Mark the table as full and
1632: * place the job back on the list of stopped jobs.
1633: */
1634: if (DEBUG(JOB)) {
1.2 deraadt 1635: (void) fprintf(stdout, "table full\n");
1636: (void) fflush(stdout);
1.1 deraadt 1637: }
1.25 ! espie 1638: Lst_AtFront(stoppedJobs, job);
1.1 deraadt 1639: jobFull = TRUE;
1640: if (DEBUG(JOB)) {
1.2 deraadt 1641: (void) fprintf(stdout, "Job queue is full.\n");
1642: (void) fflush(stdout);
1.1 deraadt 1643: }
1644: }
1645: }
1646: }
1647:
1648: /*-
1649: *-----------------------------------------------------------------------
1650: * JobStart --
1651: * Start a target-creation process going for the target described
1.6 millert 1652: * by the graph node gn.
1.1 deraadt 1653: *
1654: * Results:
1655: * JOB_ERROR if there was an error in the commands, JOB_FINISHED
1656: * if there isn't actually anything left to do for the job and
1657: * JOB_RUNNING if the job has been started.
1658: *
1659: * Side Effects:
1660: * A new Job node is created and added to the list of running
1661: * jobs. PMake is forked and a child shell created.
1662: *-----------------------------------------------------------------------
1663: */
1664: static int
1.2 deraadt 1665: JobStart(gn, flags, previous)
1.1 deraadt 1666: GNode *gn; /* target to create */
1667: int flags; /* flags for the job to override normal ones.
1668: * e.g. JOB_SPECIAL or JOB_IGNDOTS */
1669: Job *previous; /* The previous Job structure for this node,
1670: * if any. */
1671: {
1672: register Job *job; /* new job descriptor */
1673: char *argv[4]; /* Argument vector to shell */
1674: Boolean cmdsOK; /* true if the nodes commands were all right */
1675: Boolean local; /* Set true if the job was run locally */
1676: Boolean noExec; /* Set true if we decide not to run the job */
1.22 espie 1677: int tfd; /* where to stash those pesky commands */
1.1 deraadt 1678:
1.2 deraadt 1679: if (previous != NULL) {
1680: previous->flags &= ~(JOB_FIRST|JOB_IGNERR|JOB_SILENT|JOB_REMOTE);
1.1 deraadt 1681: job = previous;
1682: } else {
1.2 deraadt 1683: job = (Job *) emalloc(sizeof(Job));
1684: if (job == NULL) {
1.1 deraadt 1685: Punt("JobStart out of memory");
1686: }
1687: flags |= JOB_FIRST;
1688: }
1689:
1690: job->node = gn;
1.18 espie 1691: job->tailCmds = NULL;
1.1 deraadt 1692:
1693: /*
1694: * Set the initial value of the flags for this job based on the global
1695: * ones and the node's attributes... Any flags supplied by the caller
1696: * are also added to the field.
1697: */
1698: job->flags = 0;
1.2 deraadt 1699: if (Targ_Ignore(gn)) {
1.1 deraadt 1700: job->flags |= JOB_IGNERR;
1701: }
1.2 deraadt 1702: if (Targ_Silent(gn)) {
1.1 deraadt 1703: job->flags |= JOB_SILENT;
1704: }
1705: job->flags |= flags;
1706:
1707: /*
1708: * Check the commands now so any attributes from .DEFAULT have a chance
1709: * to migrate to the node
1710: */
1.2 deraadt 1711: if (!compatMake && job->flags & JOB_FIRST) {
1.1 deraadt 1712: cmdsOK = Job_CheckCommands(gn, Error);
1713: } else {
1714: cmdsOK = TRUE;
1715: }
1.6 millert 1716:
1.1 deraadt 1717: /*
1.6 millert 1718: * If the -n flag wasn't given, we open up OUR (not the child's)
1.1 deraadt 1719: * temporary file to stuff commands in it. The thing is rd/wr so we don't
1720: * need to reopen it to feed it to the shell. If the -n flag *was* given,
1721: * we just set the file to be stdout. Cute, huh?
1722: */
1723: if ((gn->type & OP_MAKE) || (!noExecute && !touchFlag)) {
1724: /*
1725: * We're serious here, but if the commands were bogus, we're
1726: * also dead...
1727: */
1728: if (!cmdsOK) {
1729: DieHorribly();
1730: }
1.6 millert 1731:
1.22 espie 1732: (void) strcpy(tfile, TMPPAT);
1733: if ((tfd = mkstemp(tfile)) == -1)
1734: Punt("Cannot create temp file: %s", strerror(errno));
1735: job->cmdFILE = fdopen(tfd, "w+");
1736: eunlink(tfile);
1.2 deraadt 1737: if (job->cmdFILE == NULL) {
1.22 espie 1738: close(tfd);
1.2 deraadt 1739: Punt("Could not open %s", tfile);
1.1 deraadt 1740: }
1.2 deraadt 1741: (void) fcntl(FILENO(job->cmdFILE), F_SETFD, 1);
1.1 deraadt 1742: /*
1743: * Send the commands to the command file, flush all its buffers then
1744: * rewind and remove the thing.
1745: */
1746: noExec = FALSE;
1747:
1748: /*
1749: * used to be backwards; replace when start doing multiple commands
1750: * per shell.
1751: */
1752: if (compatMake) {
1753: /*
1754: * Be compatible: If this is the first time for this node,
1755: * verify its commands are ok and open the commands list for
1756: * sequential access by later invocations of JobStart.
1757: * Once that is done, we take the next command off the list
1758: * and print it to the command file. If the command was an
1759: * ellipsis, note that there's nothing more to execute.
1760: */
1761: if ((job->flags&JOB_FIRST) && (Lst_Open(gn->commands) != SUCCESS)){
1762: cmdsOK = FALSE;
1763: } else {
1.2 deraadt 1764: LstNode ln = Lst_Next(gn->commands);
1.6 millert 1765:
1.18 espie 1766: if ((ln == NULL) ||
1.25 ! espie 1767: JobPrintCommand(Lst_Datum(ln), job))
1.1 deraadt 1768: {
1769: noExec = TRUE;
1.2 deraadt 1770: Lst_Close(gn->commands);
1.1 deraadt 1771: }
1772: if (noExec && !(job->flags & JOB_FIRST)) {
1773: /*
1774: * If we're not going to execute anything, the job
1775: * is done and we need to close down the various
1776: * file descriptors we've opened for output, then
1777: * call JobDoOutput to catch the final characters or
1778: * send the file to the screen... Note that the i/o streams
1779: * are only open if this isn't the first job.
1780: * Note also that this could not be done in
1781: * Job_CatchChildren b/c it wasn't clear if there were
1782: * more commands to execute or not...
1783: */
1.2 deraadt 1784: JobClose(job);
1.1 deraadt 1785: }
1786: }
1787: } else {
1788: /*
1789: * We can do all the commands at once. hooray for sanity
1790: */
1791: numCommands = 0;
1.25 ! espie 1792: Lst_ForEach(gn->commands, JobPrintCommand, job);
1.6 millert 1793:
1.1 deraadt 1794: /*
1795: * If we didn't print out any commands to the shell script,
1796: * there's not much point in executing the shell, is there?
1797: */
1798: if (numCommands == 0) {
1799: noExec = TRUE;
1800: }
1801: }
1802: } else if (noExecute) {
1803: /*
1804: * Not executing anything -- just print all the commands to stdout
1805: * in one fell swoop. This will still set up job->tailCmds correctly.
1806: */
1807: if (lastNode != gn) {
1.2 deraadt 1808: MESSAGE(stdout, gn);
1.1 deraadt 1809: lastNode = gn;
1810: }
1811: job->cmdFILE = stdout;
1812: /*
1813: * Only print the commands if they're ok, but don't die if they're
1814: * not -- just let the user know they're bad and keep going. It
1815: * doesn't do any harm in this case and may do some good.
1816: */
1817: if (cmdsOK) {
1.25 ! espie 1818: Lst_ForEach(gn->commands, JobPrintCommand, job);
1.1 deraadt 1819: }
1820: /*
1821: * Don't execute the shell, thank you.
1822: */
1823: noExec = TRUE;
1824: } else {
1825: /*
1826: * Just touch the target and note that no shell should be executed.
1827: * Set cmdFILE to stdout to make life easier. Check the commands, too,
1828: * but don't die if they're no good -- it does no harm to keep working
1829: * up the graph.
1830: */
1831: job->cmdFILE = stdout;
1.2 deraadt 1832: Job_Touch(gn, job->flags&JOB_SILENT);
1.1 deraadt 1833: noExec = TRUE;
1834: }
1835:
1836: /*
1.6 millert 1837: * If we're not supposed to execute a shell, don't.
1.1 deraadt 1838: */
1839: if (noExec) {
1840: /*
1841: * Unlink and close the command file if we opened one
1842: */
1843: if (job->cmdFILE != stdout) {
1.2 deraadt 1844: if (job->cmdFILE != NULL)
1845: (void) fclose(job->cmdFILE);
1.1 deraadt 1846: } else {
1.2 deraadt 1847: (void) fflush(stdout);
1.1 deraadt 1848: }
1849:
1850: /*
1851: * We only want to work our way up the graph if we aren't here because
1852: * the commands for the job were no good.
1853: */
1854: if (cmdsOK) {
1855: if (aborting == 0) {
1.18 espie 1856: if (job->tailCmds != NULL) {
1.1 deraadt 1857: Lst_ForEachFrom(job->node->commands, job->tailCmds,
1858: JobSaveCommand,
1.25 ! espie 1859: job->node);
1.1 deraadt 1860: }
1861: Make_Update(job->node);
1862: }
1863: free((Address)job);
1864: return(JOB_FINISHED);
1865: } else {
1866: free((Address)job);
1867: return(JOB_ERROR);
1868: }
1869: } else {
1.2 deraadt 1870: (void) fflush(job->cmdFILE);
1.1 deraadt 1871: }
1872:
1873: /*
1874: * Set up the control arguments to the shell. This is based on the flags
1875: * set earlier for this job.
1876: */
1877: JobMakeArgv(job, argv);
1878:
1879: /*
1880: * If we're using pipes to catch output, create the pipe by which we'll
1881: * get the shell's output. If we're using files, print out that we're
1.7 millert 1882: * starting a job and then set up its temporary-file name.
1.1 deraadt 1883: */
1.2 deraadt 1884: if (!compatMake || (job->flags & JOB_FIRST)) {
1.1 deraadt 1885: if (usePipes) {
1886: int fd[2];
1.2 deraadt 1887: if (pipe(fd) == -1)
1888: Punt("Cannot create pipe: %s", strerror(errno));
1.1 deraadt 1889: job->inPipe = fd[0];
1890: job->outPipe = fd[1];
1.2 deraadt 1891: (void) fcntl(job->inPipe, F_SETFD, 1);
1892: (void) fcntl(job->outPipe, F_SETFD, 1);
1.1 deraadt 1893: } else {
1.2 deraadt 1894: (void) fprintf(stdout, "Remaking `%s'\n", gn->name);
1895: (void) fflush(stdout);
1.7 millert 1896: (void) strcpy(job->outFile, TMPPAT);
1897: if ((job->outFd = mkstemp(job->outFile)) == -1)
1898: Punt("Cannot create temp file: %s", strerror(errno));
1.2 deraadt 1899: (void) fcntl(job->outFd, F_SETFD, 1);
1.1 deraadt 1900: }
1901: }
1902:
1.2 deraadt 1903: #ifdef REMOTE
1904: if (!(gn->type & OP_NOEXPORT) && !(runLocalFirst && nLocal < maxLocal)) {
1905: #ifdef RMT_NO_EXEC
1906: local = !Rmt_Export(shellPath, argv, job);
1907: #else
1908: local = !Rmt_Begin(shellPath, argv, job->node);
1909: #endif /* RMT_NO_EXEC */
1910: if (!local) {
1911: job->flags |= JOB_REMOTE;
1912: }
1913: } else
1914: #endif
1915: local = TRUE;
1.1 deraadt 1916:
1917: if (local && (((nLocal >= maxLocal) &&
1.2 deraadt 1918: !(job->flags & JOB_SPECIAL) &&
1919: #ifdef REMOTE
1920: (!(gn->type & OP_NOEXPORT) || (maxLocal != 0))
1921: #else
1922: (maxLocal != 0)
1923: #endif
1924: )))
1.1 deraadt 1925: {
1926: /*
1927: * The job can only be run locally, but we've hit the limit of
1928: * local concurrency, so put the job on hold until some other job
1.6 millert 1929: * finishes. Note that the special jobs (.BEGIN, .INTERRUPT and .END)
1.1 deraadt 1930: * may be run locally even when the local limit has been reached
1.6 millert 1931: * (e.g. when maxLocal == 0), though they will be exported if at
1.2 deraadt 1932: * all possible. In addition, any target marked with .NOEXPORT will
1933: * be run locally if maxLocal is 0.
1.1 deraadt 1934: */
1935: jobFull = TRUE;
1.6 millert 1936:
1.1 deraadt 1937: if (DEBUG(JOB)) {
1.2 deraadt 1938: (void) fprintf(stdout, "Can only run job locally.\n");
1939: (void) fflush(stdout);
1.1 deraadt 1940: }
1941: job->flags |= JOB_RESTART;
1.25 ! espie 1942: Lst_AtEnd(stoppedJobs, job);
1.1 deraadt 1943: } else {
1944: if ((nLocal >= maxLocal) && local) {
1945: /*
1.6 millert 1946: * If we're running this job locally as a special case (see above),
1.1 deraadt 1947: * at least say the table is full.
1948: */
1949: jobFull = TRUE;
1950: if (DEBUG(JOB)) {
1.2 deraadt 1951: (void) fprintf(stdout, "Local job queue is full.\n");
1952: (void) fflush(stdout);
1.1 deraadt 1953: }
1954: }
1955: JobExec(job, argv);
1956: }
1957: return(JOB_RUNNING);
1958: }
1959:
1.6 millert 1960: static char *
1.2 deraadt 1961: JobOutput(job, cp, endp, msg)
1962: register Job *job;
1963: register char *cp, *endp;
1964: int msg;
1965: {
1966: register char *ecp;
1967:
1968: if (commandShell->noPrint) {
1.14 espie 1969: ecp = strstr(cp, commandShell->noPrint);
1.2 deraadt 1970: while (ecp != NULL) {
1971: if (cp != ecp) {
1972: *ecp = '\0';
1973: if (msg && job->node != lastNode) {
1974: MESSAGE(stdout, job->node);
1975: lastNode = job->node;
1976: }
1977: /*
1978: * The only way there wouldn't be a newline after
1979: * this line is if it were the last in the buffer.
1980: * however, since the non-printable comes after it,
1981: * there must be a newline, so we don't print one.
1982: */
1983: (void) fprintf(stdout, "%s", cp);
1984: (void) fflush(stdout);
1985: }
1986: cp = ecp + commandShell->noPLen;
1987: if (cp != endp) {
1988: /*
1989: * Still more to print, look again after skipping
1990: * the whitespace following the non-printable
1991: * command....
1992: */
1993: cp++;
1994: while (*cp == ' ' || *cp == '\t' || *cp == '\n') {
1995: cp++;
1996: }
1.14 espie 1997: ecp = strstr(cp, commandShell->noPrint);
1.2 deraadt 1998: } else {
1999: return cp;
2000: }
2001: }
2002: }
2003: return cp;
2004: }
2005:
1.1 deraadt 2006: /*-
2007: *-----------------------------------------------------------------------
2008: * JobDoOutput --
2009: * This function is called at different times depending on
2010: * whether the user has specified that output is to be collected
2011: * via pipes or temporary files. In the former case, we are called
2012: * whenever there is something to read on the pipe. We collect more
2013: * output from the given job and store it in the job's outBuf. If
2014: * this makes up a line, we print it tagged by the job's identifier,
2015: * as necessary.
2016: * If output has been collected in a temporary file, we open the
2017: * file and read it line by line, transfering it to our own
2018: * output channel until the file is empty. At which point we
2019: * remove the temporary file.
2020: * In both cases, however, we keep our figurative eye out for the
2021: * 'noPrint' line for the shell from which the output came. If
2022: * we recognize a line, we don't print it. If the command is not
1.6 millert 2023: * alone on the line (the character after it is not \0 or \n), we
1.1 deraadt 2024: * do print whatever follows it.
2025: *
2026: * Results:
2027: * None
2028: *
2029: * Side Effects:
2030: * curPos may be shifted as may the contents of outBuf.
2031: *-----------------------------------------------------------------------
2032: */
1.2 deraadt 2033: STATIC void
2034: JobDoOutput(job, finish)
1.1 deraadt 2035: register Job *job; /* the job whose output needs printing */
2036: Boolean finish; /* TRUE if this is the last time we'll be
2037: * called for this job */
2038: {
2039: Boolean gotNL = FALSE; /* true if got a newline */
1.2 deraadt 2040: Boolean fbuf; /* true if our buffer filled up */
1.1 deraadt 2041: register int nr; /* number of bytes read */
2042: register int i; /* auxiliary index into outBuf */
1.6 millert 2043: register int max; /* limit for i (end of current data) */
2044: int nRead; /* (Temporary) number of bytes read */
1.1 deraadt 2045:
2046: FILE *oFILE; /* Stream pointer to shell's output file */
2047: char inLine[132];
2048:
1.6 millert 2049:
1.1 deraadt 2050: if (usePipes) {
2051: /*
2052: * Read as many bytes as will fit in the buffer.
2053: */
2054: end_loop:
1.2 deraadt 2055: gotNL = FALSE;
2056: fbuf = FALSE;
1.6 millert 2057:
1.2 deraadt 2058: nRead = read(job->inPipe, &job->outBuf[job->curPos],
1.1 deraadt 2059: JOB_BUFSIZE - job->curPos);
2060: if (nRead < 0) {
2061: if (DEBUG(JOB)) {
2062: perror("JobDoOutput(piperead)");
2063: }
2064: nr = 0;
2065: } else {
2066: nr = nRead;
2067: }
2068:
2069: /*
1.6 millert 2070: * If we hit the end-of-file (the job is dead), we must flush its
1.1 deraadt 2071: * remaining output, so pretend we read a newline if there's any
2072: * output remaining in the buffer.
2073: * Also clear the 'finish' flag so we stop looping.
2074: */
2075: if ((nr == 0) && (job->curPos != 0)) {
2076: job->outBuf[job->curPos] = '\n';
2077: nr = 1;
2078: finish = FALSE;
2079: } else if (nr == 0) {
2080: finish = FALSE;
2081: }
1.6 millert 2082:
1.1 deraadt 2083: /*
2084: * Look for the last newline in the bytes we just got. If there is
2085: * one, break out of the loop with 'i' as its index and gotNL set
1.6 millert 2086: * TRUE.
1.1 deraadt 2087: */
2088: max = job->curPos + nr;
2089: for (i = job->curPos + nr - 1; i >= job->curPos; i--) {
2090: if (job->outBuf[i] == '\n') {
2091: gotNL = TRUE;
2092: break;
2093: } else if (job->outBuf[i] == '\0') {
2094: /*
2095: * Why?
2096: */
2097: job->outBuf[i] = ' ';
2098: }
2099: }
1.6 millert 2100:
1.1 deraadt 2101: if (!gotNL) {
2102: job->curPos += nr;
2103: if (job->curPos == JOB_BUFSIZE) {
2104: /*
2105: * If we've run out of buffer space, we have no choice
1.6 millert 2106: * but to print the stuff. sigh.
1.1 deraadt 2107: */
1.2 deraadt 2108: fbuf = TRUE;
1.1 deraadt 2109: i = job->curPos;
2110: }
2111: }
1.2 deraadt 2112: if (gotNL || fbuf) {
1.1 deraadt 2113: /*
2114: * Need to send the output to the screen. Null terminate it
2115: * first, overwriting the newline character if there was one.
1.6 millert 2116: * So long as the line isn't one we should filter (according
1.1 deraadt 2117: * to the shell description), we print the line, preceeded
2118: * by a target banner if this target isn't the same as the
2119: * one for which we last printed something.
2120: * The rest of the data in the buffer are then shifted down
1.6 millert 2121: * to the start of the buffer and curPos is set accordingly.
1.1 deraadt 2122: */
2123: job->outBuf[i] = '\0';
2124: if (i >= job->curPos) {
1.2 deraadt 2125: char *cp;
1.6 millert 2126:
2127: cp = JobOutput(job, job->outBuf, &job->outBuf[i], FALSE);
1.1 deraadt 2128:
2129: /*
2130: * There's still more in that thar buffer. This time, though,
2131: * we know there's no newline at the end, so we add one of
2132: * our own free will.
2133: */
2134: if (*cp != '\0') {
2135: if (job->node != lastNode) {
1.2 deraadt 2136: MESSAGE(stdout, job->node);
1.1 deraadt 2137: lastNode = job->node;
2138: }
1.2 deraadt 2139: (void) fprintf(stdout, "%s%s", cp, gotNL ? "\n" : "");
2140: (void) fflush(stdout);
1.1 deraadt 2141: }
2142: }
2143: if (i < max - 1) {
2144: /* shift the remaining characters down */
1.6 millert 2145: (void) memcpy(job->outBuf, &job->outBuf[i + 1], max - (i + 1));
2146: job->curPos = max - (i + 1);
2147:
1.1 deraadt 2148: } else {
2149: /*
2150: * We have written everything out, so we just start over
2151: * from the start of the buffer. No copying. No nothing.
2152: */
2153: job->curPos = 0;
2154: }
2155: }
2156: if (finish) {
2157: /*
2158: * If the finish flag is true, we must loop until we hit
1.6 millert 2159: * end-of-file on the pipe. This is guaranteed to happen
2160: * eventually since the other end of the pipe is now closed
2161: * (we closed it explicitly and the child has exited). When
2162: * we do get an EOF, finish will be set FALSE and we'll fall
2163: * through and out.
1.1 deraadt 2164: */
2165: goto end_loop;
2166: }
2167: } else {
2168: /*
2169: * We've been called to retrieve the output of the job from the
2170: * temporary file where it's been squirreled away. This consists of
2171: * opening the file, reading the output line by line, being sure not
2172: * to print the noPrint line for the shell we used, then close and
2173: * remove the temporary file. Very simple.
2174: *
2175: * Change to read in blocks and do FindSubString type things as for
2176: * pipes? That would allow for "@echo -n..."
2177: */
1.2 deraadt 2178: oFILE = fopen(job->outFile, "r");
2179: if (oFILE != NULL) {
2180: (void) fprintf(stdout, "Results of making %s:\n", job->node->name);
2181: (void) fflush(stdout);
2182: while (fgets(inLine, sizeof(inLine), oFILE) != NULL) {
2183: register char *cp, *endp, *oendp;
1.1 deraadt 2184:
2185: cp = inLine;
1.2 deraadt 2186: oendp = endp = inLine + strlen(inLine);
1.1 deraadt 2187: if (endp[-1] == '\n') {
2188: *--endp = '\0';
2189: }
1.2 deraadt 2190: cp = JobOutput(job, inLine, endp, FALSE);
1.1 deraadt 2191:
2192: /*
2193: * There's still more in that thar buffer. This time, though,
2194: * we know there's no newline at the end, so we add one of
2195: * our own free will.
2196: */
1.2 deraadt 2197: (void) fprintf(stdout, "%s", cp);
2198: (void) fflush(stdout);
2199: if (endp != oendp) {
2200: (void) fprintf(stdout, "\n");
2201: (void) fflush(stdout);
1.1 deraadt 2202: }
2203: }
1.2 deraadt 2204: (void) fclose(oFILE);
2205: (void) eunlink(job->outFile);
1.1 deraadt 2206: }
2207: }
2208: }
2209:
2210: /*-
2211: *-----------------------------------------------------------------------
2212: * Job_CatchChildren --
2213: * Handle the exit of a child. Called from Make_Make.
2214: *
2215: * Results:
2216: * none.
2217: *
2218: * Side Effects:
2219: * The job descriptor is removed from the list of children.
2220: *
2221: * Notes:
2222: * We do waits, blocking or not, according to the wisdom of our
2223: * caller, until there are no more children to report. For each
2224: * job, call JobFinish to finish things off. This will take care of
2225: * putting jobs on the stoppedJobs queue.
2226: *
2227: *-----------------------------------------------------------------------
2228: */
2229: void
1.2 deraadt 2230: Job_CatchChildren(block)
1.1 deraadt 2231: Boolean block; /* TRUE if should block on the wait. */
2232: {
2233: int pid; /* pid of dead child */
2234: register Job *job; /* job descriptor for dead child */
2235: LstNode jnode; /* list element for finding job */
1.2 deraadt 2236: int status; /* Exit/termination status */
1.1 deraadt 2237:
2238: /*
2239: * Don't even bother if we know there's no one around.
2240: */
2241: if (nLocal == 0) {
2242: return;
2243: }
1.6 millert 2244:
1.2 deraadt 2245: while ((pid = waitpid((pid_t) -1, &status,
2246: (block?0:WNOHANG)|WUNTRACED)) > 0)
1.1 deraadt 2247: {
1.2 deraadt 2248: if (DEBUG(JOB)) {
2249: (void) fprintf(stdout, "Process %d exited or stopped.\n", pid);
2250: (void) fflush(stdout);
2251: }
1.6 millert 2252:
1.1 deraadt 2253:
1.25 ! espie 2254: jnode = Lst_Find(jobs, JobCmpPid, &pid);
1.1 deraadt 2255:
1.18 espie 2256: if (jnode == NULL) {
1.2 deraadt 2257: if (WIFSIGNALED(status) && (WTERMSIG(status) == SIGCONT)) {
1.25 ! espie 2258: jnode = Lst_Find(stoppedJobs, JobCmpPid, &pid);
1.18 espie 2259: if (jnode == NULL) {
1.6 millert 2260: Error("Resumed child (%d) not in table", pid);
1.1 deraadt 2261: continue;
2262: }
2263: job = (Job *)Lst_Datum(jnode);
1.2 deraadt 2264: (void) Lst_Remove(stoppedJobs, jnode);
1.1 deraadt 2265: } else {
1.6 millert 2266: Error("Child (%d) not in table?", pid);
1.1 deraadt 2267: continue;
2268: }
2269: } else {
1.2 deraadt 2270: job = (Job *) Lst_Datum(jnode);
1.20 espie 2271: Lst_Remove(jobs, jnode);
1.1 deraadt 2272: nJobs -= 1;
2273: if (jobFull && DEBUG(JOB)) {
1.2 deraadt 2274: (void) fprintf(stdout, "Job queue is no longer full.\n");
2275: (void) fflush(stdout);
1.1 deraadt 2276: }
2277: jobFull = FALSE;
1.2 deraadt 2278: #ifdef REMOTE
2279: if (!(job->flags & JOB_REMOTE)) {
2280: if (DEBUG(JOB)) {
2281: (void) fprintf(stdout,
2282: "Job queue has one fewer local process.\n");
2283: (void) fflush(stdout);
2284: }
2285: nLocal -= 1;
2286: }
2287: #else
1.1 deraadt 2288: nLocal -= 1;
1.2 deraadt 2289: #endif
1.1 deraadt 2290: }
2291:
1.2 deraadt 2292: JobFinish(job, &status);
1.1 deraadt 2293: }
2294: }
2295:
2296: /*-
2297: *-----------------------------------------------------------------------
2298: * Job_CatchOutput --
2299: * Catch the output from our children, if we're using
2300: * pipes do so. Otherwise just block time until we get a
1.6 millert 2301: * signal (most likely a SIGCHLD) since there's no point in
1.1 deraadt 2302: * just spinning when there's nothing to do and the reaping
1.6 millert 2303: * of a child can wait for a while.
1.1 deraadt 2304: *
2305: * Results:
1.6 millert 2306: * None
1.1 deraadt 2307: *
2308: * Side Effects:
2309: * Output is read from pipes if we're piping.
2310: * -----------------------------------------------------------------------
2311: */
2312: void
1.2 deraadt 2313: Job_CatchOutput()
1.1 deraadt 2314: {
2315: int nfds;
2316: struct timeval timeout;
2317: register LstNode ln;
2318: register Job *job;
2319: #ifdef RMT_WILL_WATCH
2320: int pnJobs; /* Previous nJobs */
2321: #endif
2322:
1.2 deraadt 2323: (void) fflush(stdout);
1.1 deraadt 2324: #ifdef RMT_WILL_WATCH
2325: pnJobs = nJobs;
2326:
2327: /*
2328: * It is possible for us to be called with nJobs equal to 0. This happens
2329: * if all the jobs finish and a job that is stopped cannot be run
2330: * locally (eg if maxLocal is 0) and cannot be exported. The job will
2331: * be placed back on the stoppedJobs queue, Job_Empty() will return false,
2332: * Make_Run will call us again when there's nothing for which to wait.
2333: * nJobs never changes, so we loop forever. Hence the check. It could
2334: * be argued that we should sleep for a bit so as not to swamp the
2335: * exportation system with requests. Perhaps we should.
2336: *
2337: * NOTE: IT IS THE RESPONSIBILITY OF Rmt_Wait TO CALL Job_CatchChildren
2338: * IN A TIMELY FASHION TO CATCH ANY LOCALLY RUNNING JOBS THAT EXIT.
2339: * It may use the variable nLocal to determine if it needs to call
1.6 millert 2340: * Job_CatchChildren (if nLocal is 0, there's nothing for which to
1.1 deraadt 2341: * wait...)
2342: */
2343: while (nJobs != 0 && pnJobs == nJobs) {
2344: Rmt_Wait();
2345: }
2346: #else
2347: if (usePipes) {
1.8 deraadt 2348: int count = howmany(outputsn+1, NFDBITS) * sizeof(fd_mask);
2349: fd_set *readfdsp = malloc(count);
2350: if (readfdsp == NULL)
2351: return;
2352:
2353: memcpy(readfdsp, outputsp, count);
1.1 deraadt 2354: timeout.tv_sec = SEL_SEC;
2355: timeout.tv_usec = SEL_USEC;
2356:
1.8 deraadt 2357: if ((nfds = select(outputsn+1, readfdsp, (fd_set *) 0,
2358: (fd_set *) 0, &timeout)) <= 0) {
2359: free(readfdsp);
1.1 deraadt 2360: return;
1.8 deraadt 2361: } else {
1.2 deraadt 2362: if (Lst_Open(jobs) == FAILURE) {
1.8 deraadt 2363: free(readfdsp);
1.2 deraadt 2364: Punt("Cannot open job table");
1.1 deraadt 2365: }
1.18 espie 2366: while (nfds && (ln = Lst_Next(jobs)) != NULL) {
1.2 deraadt 2367: job = (Job *) Lst_Datum(ln);
1.8 deraadt 2368: if (FD_ISSET(job->inPipe, readfdsp)) {
1.2 deraadt 2369: JobDoOutput(job, FALSE);
1.1 deraadt 2370: nfds -= 1;
2371: }
2372: }
1.2 deraadt 2373: Lst_Close(jobs);
1.1 deraadt 2374: }
1.8 deraadt 2375: free(readfdsp);
1.1 deraadt 2376: }
2377: #endif /* RMT_WILL_WATCH */
2378: }
2379:
2380: /*-
2381: *-----------------------------------------------------------------------
2382: * Job_Make --
2383: * Start the creation of a target. Basically a front-end for
2384: * JobStart used by the Make module.
2385: *
2386: * Results:
2387: * None.
2388: *
2389: * Side Effects:
2390: * Another job is started.
2391: *
2392: *-----------------------------------------------------------------------
2393: */
2394: void
1.2 deraadt 2395: Job_Make(gn)
1.1 deraadt 2396: GNode *gn;
2397: {
1.2 deraadt 2398: (void) JobStart(gn, 0, NULL);
1.1 deraadt 2399: }
2400:
2401: /*-
2402: *-----------------------------------------------------------------------
2403: * Job_Init --
2404: * Initialize the process module
2405: *
2406: * Results:
2407: * none
2408: *
2409: * Side Effects:
2410: * lists and counters are initialized
2411: *-----------------------------------------------------------------------
2412: */
2413: void
1.2 deraadt 2414: Job_Init(maxproc, maxlocal)
1.1 deraadt 2415: int maxproc; /* the greatest number of jobs which may be
2416: * running at one time */
2417: int maxlocal; /* the greatest number of local jobs which may
2418: * be running at once. */
2419: {
2420: GNode *begin; /* node for commands to do at the very start */
2421:
1.17 espie 2422: jobs = Lst_Init();
2423: stoppedJobs = Lst_Init();
1.1 deraadt 2424: maxJobs = maxproc;
2425: maxLocal = maxlocal;
2426: nJobs = 0;
2427: nLocal = 0;
2428: jobFull = FALSE;
2429:
2430: aborting = 0;
2431: errors = 0;
2432:
1.18 espie 2433: lastNode = NULL;
1.1 deraadt 2434:
1.2 deraadt 2435: if (maxJobs == 1
2436: #ifdef REMOTE
2437: || noMessages
2438: #endif
2439: ) {
1.1 deraadt 2440: /*
2441: * If only one job can run at a time, there's no need for a banner,
2442: * no is there?
2443: */
2444: targFmt = "";
2445: } else {
2446: targFmt = TARG_FMT;
2447: }
1.6 millert 2448:
1.2 deraadt 2449: if (shellPath == NULL) {
1.1 deraadt 2450: /*
2451: * The user didn't specify a shell to use, so we are using the
2452: * default one... Both the absolute path and the last component
2453: * must be set. The last component is taken from the 'name' field
2454: * of the default shell description pointed-to by commandShell.
2455: * All default shells are located in _PATH_DEFSHELLDIR.
2456: */
2457: shellName = commandShell->name;
1.2 deraadt 2458: shellPath = str_concat(_PATH_DEFSHELLDIR, shellName, STR_ADDSLASH);
1.1 deraadt 2459: }
2460:
1.2 deraadt 2461: if (commandShell->exit == NULL) {
1.1 deraadt 2462: commandShell->exit = "";
2463: }
1.2 deraadt 2464: if (commandShell->echo == NULL) {
1.1 deraadt 2465: commandShell->echo = "";
2466: }
2467:
2468: /*
2469: * Catch the four signals that POSIX specifies if they aren't ignored.
2470: * JobPassSig will take care of calling JobInterrupt if appropriate.
2471: */
1.2 deraadt 2472: if (signal(SIGINT, SIG_IGN) != SIG_IGN) {
2473: (void) signal(SIGINT, JobPassSig);
1.1 deraadt 2474: }
1.2 deraadt 2475: if (signal(SIGHUP, SIG_IGN) != SIG_IGN) {
2476: (void) signal(SIGHUP, JobPassSig);
1.1 deraadt 2477: }
1.2 deraadt 2478: if (signal(SIGQUIT, SIG_IGN) != SIG_IGN) {
2479: (void) signal(SIGQUIT, JobPassSig);
1.1 deraadt 2480: }
1.2 deraadt 2481: if (signal(SIGTERM, SIG_IGN) != SIG_IGN) {
2482: (void) signal(SIGTERM, JobPassSig);
1.1 deraadt 2483: }
2484: /*
2485: * There are additional signals that need to be caught and passed if
2486: * either the export system wants to be told directly of signals or if
1.6 millert 2487: * we're giving each job its own process group (since then it won't get
1.1 deraadt 2488: * signals from the terminal driver as we own the terminal)
2489: */
2490: #if defined(RMT_WANTS_SIGNALS) || defined(USE_PGRP)
1.2 deraadt 2491: if (signal(SIGTSTP, SIG_IGN) != SIG_IGN) {
2492: (void) signal(SIGTSTP, JobPassSig);
1.1 deraadt 2493: }
1.2 deraadt 2494: if (signal(SIGTTOU, SIG_IGN) != SIG_IGN) {
2495: (void) signal(SIGTTOU, JobPassSig);
1.1 deraadt 2496: }
1.2 deraadt 2497: if (signal(SIGTTIN, SIG_IGN) != SIG_IGN) {
2498: (void) signal(SIGTTIN, JobPassSig);
1.1 deraadt 2499: }
1.2 deraadt 2500: if (signal(SIGWINCH, SIG_IGN) != SIG_IGN) {
2501: (void) signal(SIGWINCH, JobPassSig);
1.1 deraadt 2502: }
2503: #endif
1.6 millert 2504:
1.2 deraadt 2505: begin = Targ_FindNode(".BEGIN", TARG_NOCREATE);
1.1 deraadt 2506:
1.18 espie 2507: if (begin != NULL) {
1.2 deraadt 2508: JobStart(begin, JOB_SPECIAL, (Job *)0);
1.1 deraadt 2509: while (nJobs) {
2510: Job_CatchOutput();
2511: #ifndef RMT_WILL_WATCH
1.2 deraadt 2512: Job_CatchChildren(!usePipes);
1.1 deraadt 2513: #endif /* RMT_WILL_WATCH */
2514: }
2515: }
1.2 deraadt 2516: postCommands = Targ_FindNode(".END", TARG_CREATE);
1.1 deraadt 2517: }
2518:
2519: /*-
2520: *-----------------------------------------------------------------------
2521: * Job_Full --
2522: * See if the job table is full. It is considered full if it is OR
2523: * if we are in the process of aborting OR if we have
2524: * reached/exceeded our local quota. This prevents any more jobs
2525: * from starting up.
2526: *
2527: * Results:
2528: * TRUE if the job table is full, FALSE otherwise
2529: * Side Effects:
2530: * None.
2531: *-----------------------------------------------------------------------
2532: */
2533: Boolean
1.2 deraadt 2534: Job_Full()
1.1 deraadt 2535: {
1.2 deraadt 2536: return(aborting || jobFull);
1.1 deraadt 2537: }
2538:
2539: /*-
2540: *-----------------------------------------------------------------------
2541: * Job_Empty --
2542: * See if the job table is empty. Because the local concurrency may
2543: * be set to 0, it is possible for the job table to become empty,
2544: * while the list of stoppedJobs remains non-empty. In such a case,
2545: * we want to restart as many jobs as we can.
2546: *
2547: * Results:
2548: * TRUE if it is. FALSE if it ain't.
2549: *
2550: * Side Effects:
2551: * None.
2552: *
2553: * -----------------------------------------------------------------------
2554: */
2555: Boolean
1.2 deraadt 2556: Job_Empty()
1.1 deraadt 2557: {
2558: if (nJobs == 0) {
2559: if (!Lst_IsEmpty(stoppedJobs) && !aborting) {
2560: /*
2561: * The job table is obviously not full if it has no jobs in
2562: * it...Try and restart the stopped jobs.
2563: */
2564: jobFull = FALSE;
1.2 deraadt 2565: JobRestartJobs();
1.1 deraadt 2566: return(FALSE);
2567: } else {
2568: return(TRUE);
2569: }
2570: } else {
2571: return(FALSE);
2572: }
2573: }
2574:
2575: /*-
2576: *-----------------------------------------------------------------------
2577: * JobMatchShell --
2578: * Find a matching shell in 'shells' given its final component.
2579: *
2580: * Results:
2581: * A pointer to the Shell structure.
2582: *
2583: * Side Effects:
2584: * None.
2585: *
2586: *-----------------------------------------------------------------------
2587: */
2588: static Shell *
1.2 deraadt 2589: JobMatchShell(name)
1.1 deraadt 2590: char *name; /* Final component of shell path */
2591: {
2592: register Shell *sh; /* Pointer into shells table */
2593: Shell *match; /* Longest-matching shell */
2594: register char *cp1,
2595: *cp2;
2596: char *eoname;
2597:
1.2 deraadt 2598: eoname = name + strlen(name);
1.1 deraadt 2599:
1.2 deraadt 2600: match = NULL;
1.1 deraadt 2601:
2602: for (sh = shells; sh->name != NULL; sh++) {
1.2 deraadt 2603: for (cp1 = eoname - strlen(sh->name), cp2 = sh->name;
1.1 deraadt 2604: *cp1 != '\0' && *cp1 == *cp2;
2605: cp1++, cp2++) {
2606: continue;
2607: }
2608: if (*cp1 != *cp2) {
2609: continue;
1.2 deraadt 2610: } else if (match == NULL || strlen(match->name) < strlen(sh->name)) {
2611: match = sh;
1.1 deraadt 2612: }
2613: }
1.2 deraadt 2614: return(match == NULL ? sh : match);
1.1 deraadt 2615: }
2616:
2617: /*-
2618: *-----------------------------------------------------------------------
2619: * Job_ParseShell --
2620: * Parse a shell specification and set up commandShell, shellPath
2621: * and shellName appropriately.
2622: *
2623: * Results:
2624: * FAILURE if the specification was incorrect.
2625: *
2626: * Side Effects:
2627: * commandShell points to a Shell structure (either predefined or
2628: * created from the shell spec), shellPath is the full path of the
2629: * shell described by commandShell, while shellName is just the
2630: * final component of shellPath.
2631: *
2632: * Notes:
2633: * A shell specification consists of a .SHELL target, with dependency
2634: * operator, followed by a series of blank-separated words. Double
2635: * quotes can be used to use blanks in words. A backslash escapes
2636: * anything (most notably a double-quote and a space) and
2637: * provides the functionality it does in C. Each word consists of
2638: * keyword and value separated by an equal sign. There should be no
2639: * unnecessary spaces in the word. The keywords are as follows:
2640: * name Name of shell.
2641: * path Location of shell. Overrides "name" if given
2642: * quiet Command to turn off echoing.
2643: * echo Command to turn echoing on
2644: * filter Result of turning off echoing that shouldn't be
2645: * printed.
2646: * echoFlag Flag to turn echoing on at the start
2647: * errFlag Flag to turn error checking on at the start
2648: * hasErrCtl True if shell has error checking control
2649: * check Command to turn on error checking if hasErrCtl
2650: * is TRUE or template of command to echo a command
2651: * for which error checking is off if hasErrCtl is
2652: * FALSE.
2653: * ignore Command to turn off error checking if hasErrCtl
2654: * is TRUE or template of command to execute a
2655: * command so as to ignore any errors it returns if
2656: * hasErrCtl is FALSE.
2657: *
2658: *-----------------------------------------------------------------------
2659: */
2660: ReturnStatus
1.2 deraadt 2661: Job_ParseShell(line)
1.1 deraadt 2662: char *line; /* The shell spec */
2663: {
2664: char **words;
2665: int wordCount;
2666: register char **argv;
2667: register int argc;
2668: char *path;
2669: Shell newShell;
2670: Boolean fullSpec = FALSE;
2671:
1.2 deraadt 2672: while (isspace(*line)) {
1.1 deraadt 2673: line++;
2674: }
1.12 espie 2675:
2676: efree(shellArgv);
2677:
2678: words = brk_string(line, &wordCount, TRUE, &shellArgv);
1.1 deraadt 2679:
1.2 deraadt 2680: memset((Address)&newShell, 0, sizeof(newShell));
1.6 millert 2681:
1.1 deraadt 2682: /*
2683: * Parse the specification by keyword
2684: */
1.12 espie 2685: for (path = NULL, argc = wordCount - 1, argv = words;
1.1 deraadt 2686: argc != 0;
2687: argc--, argv++) {
1.2 deraadt 2688: if (strncmp(*argv, "path=", 5) == 0) {
1.1 deraadt 2689: path = &argv[0][5];
1.2 deraadt 2690: } else if (strncmp(*argv, "name=", 5) == 0) {
1.1 deraadt 2691: newShell.name = &argv[0][5];
2692: } else {
1.2 deraadt 2693: if (strncmp(*argv, "quiet=", 6) == 0) {
1.1 deraadt 2694: newShell.echoOff = &argv[0][6];
1.2 deraadt 2695: } else if (strncmp(*argv, "echo=", 5) == 0) {
1.1 deraadt 2696: newShell.echoOn = &argv[0][5];
1.2 deraadt 2697: } else if (strncmp(*argv, "filter=", 7) == 0) {
1.1 deraadt 2698: newShell.noPrint = &argv[0][7];
2699: newShell.noPLen = strlen(newShell.noPrint);
1.2 deraadt 2700: } else if (strncmp(*argv, "echoFlag=", 9) == 0) {
1.1 deraadt 2701: newShell.echo = &argv[0][9];
1.2 deraadt 2702: } else if (strncmp(*argv, "errFlag=", 8) == 0) {
1.1 deraadt 2703: newShell.exit = &argv[0][8];
1.2 deraadt 2704: } else if (strncmp(*argv, "hasErrCtl=", 10) == 0) {
1.1 deraadt 2705: char c = argv[0][10];
2706: newShell.hasErrCtl = !((c != 'Y') && (c != 'y') &&
1.2 deraadt 2707: (c != 'T') && (c != 't'));
2708: } else if (strncmp(*argv, "check=", 6) == 0) {
1.1 deraadt 2709: newShell.errCheck = &argv[0][6];
1.2 deraadt 2710: } else if (strncmp(*argv, "ignore=", 7) == 0) {
1.1 deraadt 2711: newShell.ignErr = &argv[0][7];
2712: } else {
1.2 deraadt 2713: Parse_Error(PARSE_FATAL, "Unknown keyword \"%s\"",
1.1 deraadt 2714: *argv);
1.12 espie 2715: free(words);
1.2 deraadt 2716: return(FAILURE);
1.1 deraadt 2717: }
2718: fullSpec = TRUE;
2719: }
2720: }
2721:
1.2 deraadt 2722: if (path == NULL) {
1.1 deraadt 2723: /*
2724: * If no path was given, the user wants one of the pre-defined shells,
2725: * yes? So we find the one s/he wants with the help of JobMatchShell
2726: * and set things up the right way. shellPath will be set up by
2727: * Job_Init.
2728: */
1.2 deraadt 2729: if (newShell.name == NULL) {
2730: Parse_Error(PARSE_FATAL, "Neither path nor name specified");
2731: return(FAILURE);
1.1 deraadt 2732: } else {
1.2 deraadt 2733: commandShell = JobMatchShell(newShell.name);
1.1 deraadt 2734: shellName = newShell.name;
2735: }
2736: } else {
2737: /*
1.6 millert 2738: * The user provided a path. If s/he gave nothing else (fullSpec is
1.1 deraadt 2739: * FALSE), try and find a matching shell in the ones we know of.
2740: * Else we just take the specification at its word and copy it
2741: * to a new location. In either case, we need to record the
2742: * path the user gave for the shell.
2743: */
2744: shellPath = path;
1.2 deraadt 2745: path = strrchr(path, '/');
2746: if (path == NULL) {
1.1 deraadt 2747: path = shellPath;
2748: } else {
2749: path += 1;
2750: }
1.2 deraadt 2751: if (newShell.name != NULL) {
1.1 deraadt 2752: shellName = newShell.name;
2753: } else {
2754: shellName = path;
2755: }
2756: if (!fullSpec) {
1.2 deraadt 2757: commandShell = JobMatchShell(shellName);
1.1 deraadt 2758: } else {
2759: commandShell = (Shell *) emalloc(sizeof(Shell));
2760: *commandShell = newShell;
2761: }
2762: }
2763:
2764: if (commandShell->echoOn && commandShell->echoOff) {
2765: commandShell->hasEchoCtl = TRUE;
2766: }
1.6 millert 2767:
1.1 deraadt 2768: if (!commandShell->hasErrCtl) {
1.2 deraadt 2769: if (commandShell->errCheck == NULL) {
1.1 deraadt 2770: commandShell->errCheck = "";
2771: }
1.2 deraadt 2772: if (commandShell->ignErr == NULL) {
1.1 deraadt 2773: commandShell->ignErr = "%s\n";
2774: }
2775: }
1.6 millert 2776:
1.1 deraadt 2777: /*
2778: * Do not free up the words themselves, since they might be in use by the
2779: * shell specification...
2780: */
1.2 deraadt 2781: free(words);
1.1 deraadt 2782: return SUCCESS;
2783: }
2784:
2785: /*-
2786: *-----------------------------------------------------------------------
2787: * JobInterrupt --
2788: * Handle the receipt of an interrupt.
2789: *
2790: * Results:
2791: * None
2792: *
2793: * Side Effects:
2794: * All children are killed. Another job will be started if the
2795: * .INTERRUPT target was given.
2796: *-----------------------------------------------------------------------
2797: */
2798: static void
1.2 deraadt 2799: JobInterrupt(runINTERRUPT, signo)
1.1 deraadt 2800: int runINTERRUPT; /* Non-zero if commands for the .INTERRUPT
2801: * target should be executed */
1.2 deraadt 2802: int signo; /* signal received */
1.1 deraadt 2803: {
2804: LstNode ln; /* element in job table */
2805: Job *job; /* job descriptor in that element */
2806: GNode *interrupt; /* the node describing the .INTERRUPT target */
1.6 millert 2807:
1.1 deraadt 2808: aborting = ABORT_INTERRUPT;
2809:
1.2 deraadt 2810: (void) Lst_Open(jobs);
1.18 espie 2811: while ((ln = Lst_Next(jobs)) != NULL) {
1.2 deraadt 2812: job = (Job *) Lst_Datum(ln);
1.1 deraadt 2813:
1.2 deraadt 2814: if (!Targ_Precious(job->node)) {
2815: char *file = (job->node->path == NULL ?
1.1 deraadt 2816: job->node->name :
2817: job->node->path);
1.2 deraadt 2818: if (!noExecute && eunlink(file) != -1) {
2819: Error("*** %s removed", file);
1.1 deraadt 2820: }
2821: }
2822: #ifdef RMT_WANTS_SIGNALS
2823: if (job->flags & JOB_REMOTE) {
2824: /*
2825: * If job is remote, let the Rmt module do the killing.
2826: */
1.2 deraadt 2827: if (!Rmt_Signal(job, signo)) {
1.1 deraadt 2828: /*
2829: * If couldn't kill the thing, finish it out now with an
2830: * error code, since no exit report will come in likely.
2831: */
1.2 deraadt 2832: int status;
1.1 deraadt 2833:
2834: status.w_status = 0;
2835: status.w_retcode = 1;
1.2 deraadt 2836: JobFinish(job, &status);
1.1 deraadt 2837: }
2838: } else if (job->pid) {
1.2 deraadt 2839: KILL(job->pid, signo);
1.1 deraadt 2840: }
2841: #else
2842: if (job->pid) {
1.2 deraadt 2843: if (DEBUG(JOB)) {
2844: (void) fprintf(stdout,
1.6 millert 2845: "JobInterrupt passing signal to child %d.\n",
1.2 deraadt 2846: job->pid);
2847: (void) fflush(stdout);
2848: }
2849: KILL(job->pid, signo);
2850: }
2851: #endif /* RMT_WANTS_SIGNALS */
2852: }
2853:
2854: #ifdef REMOTE
2855: (void)Lst_Open(stoppedJobs);
1.18 espie 2856: while ((ln = Lst_Next(stoppedJobs)) != NULL) {
1.2 deraadt 2857: job = (Job *) Lst_Datum(ln);
2858:
2859: if (job->flags & JOB_RESTART) {
2860: if (DEBUG(JOB)) {
2861: (void) fprintf(stdout, "%s%s",
2862: "JobInterrupt skipping job on stopped queue",
2863: "-- it was waiting to be restarted.\n");
2864: (void) fflush(stdout);
2865: }
2866: continue;
2867: }
2868: if (!Targ_Precious(job->node)) {
2869: char *file = (job->node->path == NULL ?
2870: job->node->name :
2871: job->node->path);
2872: if (eunlink(file) == 0) {
2873: Error("*** %s removed", file);
2874: }
2875: }
2876: /*
2877: * Resume the thing so it will take the signal.
2878: */
2879: if (DEBUG(JOB)) {
2880: (void) fprintf(stdout,
1.6 millert 2881: "JobInterrupt passing CONT to stopped child %d.\n",
1.2 deraadt 2882: job->pid);
2883: (void) fflush(stdout);
2884: }
2885: KILL(job->pid, SIGCONT);
2886: #ifdef RMT_WANTS_SIGNALS
2887: if (job->flags & JOB_REMOTE) {
2888: /*
2889: * If job is remote, let the Rmt module do the killing.
2890: */
2891: if (!Rmt_Signal(job, SIGINT)) {
2892: /*
2893: * If couldn't kill the thing, finish it out now with an
2894: * error code, since no exit report will come in likely.
2895: */
2896: int status;
2897: status.w_status = 0;
2898: status.w_retcode = 1;
2899: JobFinish(job, &status);
2900: }
2901: } else if (job->pid) {
2902: if (DEBUG(JOB)) {
2903: (void) fprintf(stdout,
2904: "JobInterrupt passing interrupt to stopped child %d.\n",
2905: job->pid);
2906: (void) fflush(stdout);
2907: }
1.1 deraadt 2908: KILL(job->pid, SIGINT);
2909: }
2910: #endif /* RMT_WANTS_SIGNALS */
2911: }
1.2 deraadt 2912: #endif
2913: Lst_Close(stoppedJobs);
1.1 deraadt 2914:
2915: if (runINTERRUPT && !touchFlag) {
1.2 deraadt 2916: interrupt = Targ_FindNode(".INTERRUPT", TARG_NOCREATE);
1.18 espie 2917: if (interrupt != NULL) {
1.1 deraadt 2918: ignoreErrors = FALSE;
2919:
1.2 deraadt 2920: JobStart(interrupt, JOB_IGNDOTS, (Job *)0);
1.1 deraadt 2921: while (nJobs) {
2922: Job_CatchOutput();
2923: #ifndef RMT_WILL_WATCH
1.2 deraadt 2924: Job_CatchChildren(!usePipes);
1.1 deraadt 2925: #endif /* RMT_WILL_WATCH */
2926: }
2927: }
2928: }
1.2 deraadt 2929: exit(signo);
1.1 deraadt 2930: }
2931:
2932: /*
2933: *-----------------------------------------------------------------------
1.12 espie 2934: * Job_Finish --
1.1 deraadt 2935: * Do final processing such as the running of the commands
1.6 millert 2936: * attached to the .END target.
1.1 deraadt 2937: *
2938: * Results:
2939: * Number of errors reported.
2940: *-----------------------------------------------------------------------
2941: */
2942: int
1.12 espie 2943: Job_Finish()
1.1 deraadt 2944: {
1.18 espie 2945: if (postCommands != NULL && !Lst_IsEmpty(postCommands->commands)) {
1.1 deraadt 2946: if (errors) {
1.2 deraadt 2947: Error("Errors reported so .END ignored");
1.1 deraadt 2948: } else {
1.2 deraadt 2949: JobStart(postCommands, JOB_SPECIAL | JOB_IGNDOTS, NULL);
1.1 deraadt 2950:
2951: while (nJobs) {
2952: Job_CatchOutput();
2953: #ifndef RMT_WILL_WATCH
1.2 deraadt 2954: Job_CatchChildren(!usePipes);
1.1 deraadt 2955: #endif /* RMT_WILL_WATCH */
2956: }
2957: }
2958: }
2959: return(errors);
2960: }
2961:
1.12 espie 2962: /*-
2963: *-----------------------------------------------------------------------
2964: * Job_End --
2965: * Cleanup any memory used by the jobs module
2966: *
2967: * Results:
2968: * None.
2969: *
2970: * Side Effects:
2971: * Memory is freed
2972: *-----------------------------------------------------------------------
2973: */
2974: void
2975: Job_End()
2976: {
1.13 espie 2977: #ifdef CLEANUP
1.12 espie 2978: efree(shellArgv);
1.13 espie 2979: #endif
1.12 espie 2980: }
2981:
1.1 deraadt 2982: /*-
2983: *-----------------------------------------------------------------------
2984: * Job_Wait --
2985: * Waits for all running jobs to finish and returns. Sets 'aborting'
2986: * to ABORT_WAIT to prevent other jobs from starting.
2987: *
2988: * Results:
2989: * None.
2990: *
2991: * Side Effects:
2992: * Currently running jobs finish.
2993: *
2994: *-----------------------------------------------------------------------
2995: */
2996: void
2997: Job_Wait()
2998: {
2999: aborting = ABORT_WAIT;
3000: while (nJobs != 0) {
3001: Job_CatchOutput();
3002: #ifndef RMT_WILL_WATCH
3003: Job_CatchChildren(!usePipes);
3004: #endif /* RMT_WILL_WATCH */
3005: }
3006: aborting = 0;
3007: }
3008:
3009: /*-
3010: *-----------------------------------------------------------------------
3011: * Job_AbortAll --
3012: * Abort all currently running jobs without handling output or anything.
3013: * This function is to be called only in the event of a major
3014: * error. Most definitely NOT to be called from JobInterrupt.
3015: *
3016: * Results:
3017: * None
3018: *
3019: * Side Effects:
3020: * All children are killed, not just the firstborn
3021: *-----------------------------------------------------------------------
3022: */
3023: void
1.2 deraadt 3024: Job_AbortAll()
1.1 deraadt 3025: {
1.2 deraadt 3026: LstNode ln; /* element in job table */
1.1 deraadt 3027: Job *job; /* the job descriptor in that element */
3028: int foo;
1.6 millert 3029:
1.1 deraadt 3030: aborting = ABORT_ERROR;
1.6 millert 3031:
1.1 deraadt 3032: if (nJobs) {
3033:
1.2 deraadt 3034: (void) Lst_Open(jobs);
1.18 espie 3035: while ((ln = Lst_Next(jobs)) != NULL) {
1.2 deraadt 3036: job = (Job *) Lst_Datum(ln);
1.1 deraadt 3037:
3038: /*
3039: * kill the child process with increasingly drastic signals to make
1.6 millert 3040: * darn sure it's dead.
1.1 deraadt 3041: */
3042: #ifdef RMT_WANTS_SIGNALS
3043: if (job->flags & JOB_REMOTE) {
3044: Rmt_Signal(job, SIGINT);
3045: Rmt_Signal(job, SIGKILL);
3046: } else {
3047: KILL(job->pid, SIGINT);
3048: KILL(job->pid, SIGKILL);
3049: }
3050: #else
3051: KILL(job->pid, SIGINT);
3052: KILL(job->pid, SIGKILL);
3053: #endif /* RMT_WANTS_SIGNALS */
3054: }
3055: }
1.6 millert 3056:
1.1 deraadt 3057: /*
3058: * Catch as many children as want to report in at first, then give up
3059: */
1.2 deraadt 3060: while (waitpid((pid_t) -1, &foo, WNOHANG) > 0)
1.1 deraadt 3061: continue;
1.2 deraadt 3062: }
3063:
3064: #ifdef REMOTE
3065: /*-
3066: *-----------------------------------------------------------------------
3067: * JobFlagForMigration --
3068: * Handle the eviction of a child. Called from RmtStatusChange.
3069: * Flags the child as remigratable and then suspends it.
3070: *
3071: * Results:
3072: * none.
3073: *
3074: * Side Effects:
3075: * The job descriptor is flagged for remigration.
3076: *
3077: *-----------------------------------------------------------------------
3078: */
3079: void
3080: JobFlagForMigration(hostID)
3081: int hostID; /* ID of host we used, for matching children. */
3082: {
3083: register Job *job; /* job descriptor for dead child */
3084: LstNode jnode; /* list element for finding job */
3085:
3086: if (DEBUG(JOB)) {
3087: (void) fprintf(stdout, "JobFlagForMigration(%d) called.\n", hostID);
3088: (void) fflush(stdout);
3089: }
1.25 ! espie 3090: jnode = Lst_Find(jobs, JobCmpRmtID, &hostID);
1.2 deraadt 3091:
1.18 espie 3092: if (jnode == NULL) {
1.25 ! espie 3093: jnode = Lst_Find(stoppedJobs, JobCmpRmtID, &hostID);
1.18 espie 3094: if (jnode == NULL) {
1.2 deraadt 3095: if (DEBUG(JOB)) {
3096: Error("Evicting host(%d) not in table", hostID);
3097: }
3098: return;
3099: }
3100: }
3101: job = (Job *) Lst_Datum(jnode);
3102:
3103: if (DEBUG(JOB)) {
3104: (void) fprintf(stdout,
3105: "JobFlagForMigration(%d) found job '%s'.\n", hostID,
3106: job->node->name);
3107: (void) fflush(stdout);
3108: }
3109:
3110: KILL(job->pid, SIGSTOP);
3111:
3112: job->flags |= JOB_REMIGRATE;
3113: }
3114:
3115: #endif
3116:
3117: /*-
3118: *-----------------------------------------------------------------------
3119: * JobRestartJobs --
3120: * Tries to restart stopped jobs if there are slots available.
3121: * Note that this tries to restart them regardless of pending errors.
3122: * It's not good to leave stopped jobs lying around!
3123: *
3124: * Results:
3125: * None.
3126: *
3127: * Side Effects:
3128: * Resumes(and possibly migrates) jobs.
3129: *
3130: *-----------------------------------------------------------------------
3131: */
3132: static void
3133: JobRestartJobs()
3134: {
1.19 espie 3135: Job *job;
3136:
3137: while (!jobFull && (job = (Job *)Lst_DeQueue(stoppedJobs)) != NULL) {
1.2 deraadt 3138: if (DEBUG(JOB)) {
3139: (void) fprintf(stdout,
3140: "Job queue is not full. Restarting a stopped job.\n");
3141: (void) fflush(stdout);
3142: }
1.19 espie 3143: JobRestart(job);
1.2 deraadt 3144: }
1.1 deraadt 3145: }
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