Annotation of src/usr.bin/make/job.c, Revision 1.45
1.40 espie 1: /* $OpenPackages$ */
1.44 espie 2: /* $OpenBSD: job.c,v 1.43 2001/09/04 23:35:58 millert Exp $ */
1.6 millert 3: /* $NetBSD: job.c,v 1.16 1996/11/06 17:59:08 christos Exp $ */
1.1 deraadt 4:
5: /*
6: * Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
7: * Copyright (c) 1988, 1989 by Adam de Boor
8: * Copyright (c) 1989 by Berkeley Softworks
9: * All rights reserved.
10: *
11: * This code is derived from software contributed to Berkeley by
12: * Adam de Boor.
13: *
14: * Redistribution and use in source and binary forms, with or without
15: * modification, are permitted provided that the following conditions
16: * are met:
17: * 1. Redistributions of source code must retain the above copyright
18: * notice, this list of conditions and the following disclaimer.
19: * 2. Redistributions in binary form must reproduce the above copyright
20: * notice, this list of conditions and the following disclaimer in the
21: * documentation and/or other materials provided with the distribution.
22: * 3. All advertising materials mentioning features or use of this software
23: * must display the following acknowledgement:
24: * This product includes software developed by the University of
25: * California, Berkeley and its contributors.
26: * 4. Neither the name of the University nor the names of its contributors
27: * may be used to endorse or promote products derived from this software
28: * without specific prior written permission.
29: *
30: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
31: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
32: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
34: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
36: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
37: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
38: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
39: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40: * SUCH DAMAGE.
41: */
42:
43: /*-
44: * job.c --
45: * handle the creation etc. of our child processes.
46: *
47: * Interface:
1.40 espie 48: * Job_Make Start the creation of the given target.
1.1 deraadt 49: *
1.40 espie 50: * Job_CatchChildren Check for and handle the termination of any
51: * children. This must be called reasonably
52: * frequently to keep the whole make going at
53: * a decent clip, since job table entries aren't
54: * removed until their process is caught this way.
1.41 espie 55: * Its single argument is true if the function
1.40 espie 56: * should block waiting for a child to terminate.
57: *
58: * Job_CatchOutput Print any output our children have produced.
59: * Should also be called fairly frequently to
60: * keep the user informed of what's going on.
61: * If no output is waiting, it will block for
62: * a time given by the SEL_* constants, below,
63: * or until output is ready.
64: *
65: * Job_Init Called to intialize this module. in addition,
66: * any commands attached to the .BEGIN target
67: * are executed before this function returns.
68: * Hence, the makefile must have been parsed
69: * before this function is called.
70: *
71: * Job_End Cleanup any memory used.
72: *
1.41 espie 73: * Job_Full Return true if the job table is filled.
1.40 espie 74: *
1.41 espie 75: * Job_Empty Return true if the job table is completely
1.40 espie 76: * empty.
77: *
78: * Job_ParseShell Given the line following a .SHELL target, parse
79: * the line as a shell specification. Returns
1.41 espie 80: * false if the spec was incorrect.
1.40 espie 81: *
82: * Job_Finish Perform any final processing which needs doing.
83: * This includes the execution of any commands
84: * which have been/were attached to the .END
85: * target. It should only be called when the
86: * job table is empty.
87: *
88: * Job_AbortAll Abort all currently running jobs. It doesn't
89: * handle output or do anything for the jobs,
90: * just kills them. It should only be called in
91: * an emergency, as it were.
1.1 deraadt 92: *
1.40 espie 93: * Job_CheckCommands Verify that the commands for a target are
94: * ok. Provide them if necessary and possible.
1.1 deraadt 95: *
1.40 espie 96: * Job_Touch Update a target without really updating it.
1.1 deraadt 97: *
1.40 espie 98: * Job_Wait Wait for all currently-running jobs to finish.
1.1 deraadt 99: */
100:
101: #include <sys/types.h>
102: #include <sys/wait.h>
1.41 espie 103: #include <ctype.h>
104: #include <errno.h>
1.1 deraadt 105: #include <fcntl.h>
1.42 espie 106: #include <limits.h>
1.41 espie 107: #include <signal.h>
1.36 espie 108: #include <stddef.h>
1.1 deraadt 109: #include <stdio.h>
1.42 espie 110: #include <stdlib.h>
1.1 deraadt 111: #include <string.h>
1.41 espie 112: #include <unistd.h>
113: #include "config.h"
114: #include "defines.h"
1.1 deraadt 115: #include "dir.h"
116: #include "job.h"
117: #include "pathnames.h"
1.41 espie 118: #include "arch.h"
119: #include "var.h"
120: #include "targ.h"
121: #include "error.h"
122: #include "str.h"
123: #include "lst.h"
124: #include "extern.h"
125: #include "gnode.h"
126: #include "memory.h"
127: #include "make.h"
128: #include "timestamp.h"
129: #include "main.h"
130:
1.2 deraadt 131: #ifdef REMOTE
132: #include "rmt.h"
1.6 millert 133: # define STATIC
1.2 deraadt 134: #else
135: # define STATIC static
136: #endif
1.1 deraadt 137:
138: /*
1.6 millert 139: * error handling variables
1.1 deraadt 140: */
1.40 espie 141: static int errors = 0; /* number of errors reported */
142: static int aborting = 0; /* why is the make aborting? */
143: #define ABORT_ERROR 1 /* Because of an error */
144: #define ABORT_INTERRUPT 2 /* Because it was interrupted */
145: #define ABORT_WAIT 3 /* Waiting for jobs to finish */
1.1 deraadt 146:
1.6 millert 147: /*
1.2 deraadt 148: * XXX: Avoid SunOS bug... FILENO() is fp->_file, and file
149: * is a char! So when we go above 127 we turn negative!
150: */
151: #define FILENO(a) ((unsigned) fileno(a))
1.1 deraadt 152:
153: /*
154: * post-make command processing. The node postCommands is really just the
155: * .END target but we keep it around to avoid having to search for it
156: * all the time.
157: */
1.40 espie 158: static GNode *postCommands; /* node containing commands to execute when
1.1 deraadt 159: * everything else is done */
1.40 espie 160: static int numCommands; /* The number of commands actually printed
1.1 deraadt 161: * for a target. Should this number be
162: * 0, no shell will be executed. */
163:
164: /*
165: * Return values from JobStart.
166: */
1.40 espie 167: #define JOB_RUNNING 0 /* Job is running */
168: #define JOB_ERROR 1 /* Error in starting the job */
169: #define JOB_FINISHED 2 /* The job is already finished */
170: #define JOB_STOPPED 3 /* The job is stopped */
1.1 deraadt 171:
172: /*
1.40 espie 173: * tfile is the name of a file into which all shell commands are put. It is
174: * used over by removing it before the child shell is executed. The XXXXXXXXXX
175: * in the string are replaced by mkstemp(3).
1.1 deraadt 176: */
1.40 espie 177: static char tfile[sizeof(TMPPAT)];
1.1 deraadt 178:
179:
180: /*
181: * Descriptions for various shells.
182: */
1.40 espie 183: static Shell shells[] = {
1.1 deraadt 184: /*
185: * CSH description. The csh can do echo control by playing
186: * with the setting of the 'echo' shell variable. Sadly,
187: * however, it is unable to do error control nicely.
188: */
189: {
190: "csh",
1.41 espie 191: true, "unset verbose", "set verbose", "unset verbose", 10,
192: false, "echo \"%s\"\n", "csh -c \"%s || exit 0\"",
1.1 deraadt 193: "v", "e",
194: },
195: /*
196: * SH description. Echo control is also possible and, under
197: * sun UNIX anyway, one can even control error checking.
198: */
199: {
200: "sh",
1.41 espie 201: true, "set -", "set -v", "set -", 5,
202: true, "set -e", "set +e",
1.2 deraadt 203: #ifdef OLDBOURNESHELL
1.41 espie 204: false, "echo \"%s\"\n", "sh -c '%s || exit 0'\n",
1.2 deraadt 205: #endif
1.1 deraadt 206: "v", "e",
207: },
208: /*
209: * UNKNOWN.
210: */
211: {
1.40 espie 212: (char *)0,
1.41 espie 213: false, (char *)0, (char *)0, (char *)0, 0,
214: false, (char *)0, (char *)0,
1.40 espie 215: (char *)0, (char *)0,
1.1 deraadt 216: }
217: };
1.40 espie 218: static Shell *commandShell = &shells[DEFSHELL];/* this is the shell to
1.1 deraadt 219: * which we pass all
220: * commands in the Makefile.
221: * It is set by the
222: * Job_ParseShell function */
1.40 espie 223: static char *shellPath = NULL, /* full pathname of
1.1 deraadt 224: * executable image */
1.40 espie 225: *shellName = NULL, /* last component of shell */
1.12 espie 226: *shellArgv = NULL; /* Custom shell args */
1.1 deraadt 227:
228:
1.40 espie 229: static int maxJobs; /* The most children we can run at once */
230: static int maxLocal; /* The most local ones we can have */
1.41 espie 231: STATIC int nJobs = 0; /* The number of children currently running */
1.40 espie 232: STATIC int nLocal; /* The number of local children */
233: STATIC LIST jobs; /* The structures that describe them */
1.41 espie 234: STATIC bool jobFull; /* Flag to tell when the job table is full. It
235: * is set true when (1) the total number of
1.1 deraadt 236: * running jobs equals the maximum allowed or
237: * (2) a job can only be run locally, but
238: * nLocal equals maxLocal */
239: #ifndef RMT_WILL_WATCH
1.40 espie 240: static fd_set *outputsp; /* Set of descriptors of pipes connected to
1.1 deraadt 241: * the output channels of children */
1.8 deraadt 242: static int outputsn;
1.1 deraadt 243: #endif
244:
1.40 espie 245: STATIC GNode *lastNode; /* The node for which output was most recently
1.1 deraadt 246: * produced. */
1.40 espie 247: STATIC char *targFmt; /* Format string to use to head output from a
1.1 deraadt 248: * job when it's not the most-recent job heard
249: * from */
1.2 deraadt 250:
251: #ifdef REMOTE
252: # define TARG_FMT "--- %s at %s ---\n" /* Default format */
253: # define MESSAGE(fp, gn) \
1.40 espie 254: (void)fprintf(fp, targFmt, gn->name, gn->rem.hname);
1.2 deraadt 255: #else
256: # define TARG_FMT "--- %s ---\n" /* Default format */
257: # define MESSAGE(fp, gn) \
1.40 espie 258: (void)fprintf(fp, targFmt, gn->name);
1.2 deraadt 259: #endif
1.1 deraadt 260:
261: /*
262: * When JobStart attempts to run a job remotely but can't, and isn't allowed
263: * to run the job locally, or when Job_CatchChildren detects a job that has
264: * been migrated home, the job is placed on the stoppedJobs queue to be run
1.6 millert 265: * when the next job finishes.
1.1 deraadt 266: */
1.29 espie 267: STATIC LIST stoppedJobs; /* Lst of Job structures describing
1.1 deraadt 268: * jobs that were stopped due to concurrency
269: * limits or migration home */
270:
271:
272: #if defined(USE_PGRP) && defined(SYSV)
1.40 espie 273: # define KILL(pid, sig) killpg(-(pid), (sig))
1.1 deraadt 274: #else
275: # if defined(USE_PGRP)
1.2 deraadt 276: # define KILL(pid, sig) killpg((pid), (sig))
1.1 deraadt 277: # else
1.2 deraadt 278: # define KILL(pid, sig) kill((pid), (sig))
1.1 deraadt 279: # endif
280: #endif
281:
1.6 millert 282: /*
1.2 deraadt 283: * Grmpf... There is no way to set bits of the wait structure
284: * anymore with the stupid W*() macros. I liked the union wait
285: * stuff much more. So, we devise our own macros... This is
286: * really ugly, use dramamine sparingly. You have been warned.
287: */
288: #define W_SETMASKED(st, val, fun) \
289: { \
290: int sh = (int) ~0; \
291: int mask = fun(sh); \
292: \
293: for (sh = 0; ((mask >> sh) & 1) == 0; sh++) \
294: continue; \
295: *(st) = (*(st) & ~mask) | ((val) << sh); \
296: }
297:
298: #define W_SETTERMSIG(st, val) W_SETMASKED(st, val, WTERMSIG)
299: #define W_SETEXITSTATUS(st, val) W_SETMASKED(st, val, WEXITSTATUS)
300:
301:
1.40 espie 302: static void JobCondPassSig(void *, void *);
303: static void JobPassSig(int);
304: static int JobCmpPid(void *, void *);
305: static int JobPrintCommand(void *, void *);
306: static void JobSaveCommand(void *, void *);
307: static void JobClose(Job *);
1.2 deraadt 308: #ifdef REMOTE
1.40 espie 309: static int JobCmpRmtID(Job *, int);
1.2 deraadt 310: # ifdef RMT_WILL_WATCH
1.40 espie 311: static void JobLocalInput(int, Job *);
1.2 deraadt 312: # endif
313: #else
1.40 espie 314: static void JobFinish(Job *, int *);
315: static void JobExec(Job *, char **);
1.2 deraadt 316: #endif
1.40 espie 317: static void JobMakeArgv(Job *, char **);
318: static void JobRestart(Job *);
319: static int JobStart(GNode *, int, Job *);
320: static char *JobOutput(Job *, char *, char *, int);
1.41 espie 321: static void JobDoOutput(Job *, bool);
1.40 espie 322: static Shell *JobMatchShell(char *);
323: static void JobInterrupt(int, int);
324: static void JobRestartJobs(void);
1.1 deraadt 325:
326: /*-
327: *-----------------------------------------------------------------------
328: * JobCondPassSig --
329: * Pass a signal to a job if the job is remote or if USE_PGRP
330: * is defined.
331: *
332: * Side Effects:
333: * None, except the job may bite it.
334: *-----------------------------------------------------------------------
335: */
1.27 espie 336: static void
1.1 deraadt 337: JobCondPassSig(jobp, signop)
1.40 espie 338: void *jobp; /* Job to biff */
339: void *signop; /* Signal to send it */
1.1 deraadt 340: {
1.40 espie 341: Job *job = (Job *)jobp;
342: int signo = *(int *)signop;
1.1 deraadt 343: #ifdef RMT_WANTS_SIGNALS
344: if (job->flags & JOB_REMOTE) {
1.40 espie 345: (void)Rmt_Signal(job, signo);
1.1 deraadt 346: } else {
347: KILL(job->pid, signo);
348: }
349: #else
350: /*
351: * Assume that sending the signal to job->pid will signal any remote
352: * job as well.
353: */
1.2 deraadt 354: if (DEBUG(JOB)) {
1.40 espie 355: (void)fprintf(stdout,
1.2 deraadt 356: "JobCondPassSig passing signal %d to child %d.\n",
357: signo, job->pid);
1.40 espie 358: (void)fflush(stdout);
1.2 deraadt 359: }
1.1 deraadt 360: KILL(job->pid, signo);
361: #endif
362: }
363:
364: /*-
365: *-----------------------------------------------------------------------
366: * JobPassSig --
367: * Pass a signal on to all remote jobs and to all local jobs if
368: * USE_PGRP is defined, then die ourselves.
369: *
370: * Side Effects:
371: * We die by the same signal.
372: *-----------------------------------------------------------------------
373: */
374: static void
375: JobPassSig(signo)
1.40 espie 376: int signo; /* The signal number we've received */
1.1 deraadt 377: {
1.2 deraadt 378: sigset_t nmask, omask;
1.3 niklas 379: struct sigaction act;
1.6 millert 380:
1.2 deraadt 381: if (DEBUG(JOB)) {
1.40 espie 382: (void)fprintf(stdout, "JobPassSig(%d) called.\n", signo);
383: (void)fflush(stdout);
1.2 deraadt 384: }
1.29 espie 385: Lst_ForEach(&jobs, JobCondPassSig, &signo);
1.1 deraadt 386:
387: /*
388: * Deal with proper cleanup based on the signal received. We only run
389: * the .INTERRUPT target if the signal was in fact an interrupt. The other
390: * three termination signals are more of a "get out *now*" command.
391: */
392: if (signo == SIGINT) {
1.41 espie 393: JobInterrupt(true, signo);
1.40 espie 394: } else if (signo == SIGHUP || signo == SIGTERM || signo == SIGQUIT) {
1.41 espie 395: JobInterrupt(false, signo);
1.1 deraadt 396: }
1.6 millert 397:
1.1 deraadt 398: /*
399: * Leave gracefully if SIGQUIT, rather than core dumping.
400: */
401: if (signo == SIGQUIT) {
402: Finish(0);
403: }
1.6 millert 404:
1.1 deraadt 405: /*
406: * Send ourselves the signal now we've given the message to everyone else.
407: * Note we block everything else possible while we're getting the signal.
408: * This ensures that all our jobs get continued when we wake up before
409: * we take any other signal.
410: */
1.3 niklas 411: sigemptyset(&nmask);
412: sigaddset(&nmask, signo);
413: sigprocmask(SIG_SETMASK, &nmask, &omask);
1.10 deraadt 414: memset(&act, 0, sizeof act);
1.3 niklas 415: act.sa_handler = SIG_DFL;
416: sigemptyset(&act.sa_mask);
417: act.sa_flags = 0;
418: sigaction(signo, &act, NULL);
1.2 deraadt 419:
420: if (DEBUG(JOB)) {
1.40 espie 421: (void)fprintf(stdout,
1.2 deraadt 422: "JobPassSig passing signal to self, mask = %x.\n",
423: ~0 & ~(1 << (signo-1)));
1.40 espie 424: (void)fflush(stdout);
1.2 deraadt 425: }
1.40 espie 426: (void)signal(signo, SIG_DFL);
1.1 deraadt 427:
1.40 espie 428: (void)KILL(getpid(), signo);
1.1 deraadt 429:
430: signo = SIGCONT;
1.29 espie 431: Lst_ForEach(&jobs, JobCondPassSig, &signo);
1.1 deraadt 432:
1.40 espie 433: (void)sigprocmask(SIG_SETMASK, &omask, NULL);
1.3 niklas 434: sigprocmask(SIG_SETMASK, &omask, NULL);
435: act.sa_handler = JobPassSig;
436: sigaction(signo, &act, NULL);
1.1 deraadt 437: }
438:
439: /*-
440: *-----------------------------------------------------------------------
441: * JobCmpPid --
442: * Compare the pid of the job with the given pid and return 0 if they
443: * are equal. This function is called from Job_CatchChildren via
444: * Lst_Find to find the job descriptor of the finished job.
445: *
446: * Results:
447: * 0 if the pid's match
448: *-----------------------------------------------------------------------
449: */
450: static int
1.2 deraadt 451: JobCmpPid(job, pid)
1.28 espie 452: void *job; /* job to examine */
453: void *pid; /* process id desired */
1.1 deraadt 454: {
1.28 espie 455: return *(int *)pid - ((Job *)job)->pid;
1.1 deraadt 456: }
457:
1.2 deraadt 458: #ifdef REMOTE
459: /*-
460: *-----------------------------------------------------------------------
1.40 espie 461: * JobCmpRmtID --
1.2 deraadt 462: * Compare the rmtID of the job with the given rmtID and return 0 if they
1.6 millert 463: * are equal.
1.2 deraadt 464: *
465: * Results:
466: * 0 if the rmtID's match
467: *-----------------------------------------------------------------------
468: */
469: static int
470: JobCmpRmtID(job, rmtID)
1.40 espie 471: void *job; /* job to examine */
472: void *rmtID; /* remote id desired */
1.2 deraadt 473: {
1.40 espie 474: return *(int *)rmtID - *(int *)job->rmtID;
1.2 deraadt 475: }
476: #endif
477:
1.1 deraadt 478: /*-
479: *-----------------------------------------------------------------------
480: * JobPrintCommand --
481: * Put out another command for the given job. If the command starts
482: * with an @ or a - we process it specially. In the former case,
483: * so long as the -s and -n flags weren't given to make, we stick
484: * a shell-specific echoOff command in the script. In the latter,
485: * we ignore errors for the entire job, unless the shell has error
486: * control.
487: * If the command is just "..." we take all future commands for this
488: * job to be commands to be executed once the entire graph has been
489: * made and return non-zero to signal that the end of the commands
490: * was reached. These commands are later attached to the postCommands
491: * node and executed by Job_End when all things are done.
1.40 espie 492: * This function is called from JobStart via Lst_Find
1.1 deraadt 493: *
494: * Results:
1.26 espie 495: * Always 1, unless the command was "..."
1.1 deraadt 496: *
497: * Side Effects:
498: * If the command begins with a '-' and the shell has no error control,
499: * the JOB_IGNERR flag is set in the job descriptor.
500: * If the command is "..." and we're not ignoring such things,
501: * tailCmds is set to the successor node of the cmd.
502: * numCommands is incremented if the command is actually printed.
503: *-----------------------------------------------------------------------
504: */
505: static int
1.2 deraadt 506: JobPrintCommand(cmdp, jobp)
1.40 espie 507: void *cmdp; /* command string to print */
508: void *jobp; /* job for which to print it */
1.1 deraadt 509: {
1.41 espie 510: bool noSpecials; /* true if we shouldn't worry about
1.1 deraadt 511: * inserting special commands into
512: * the input stream. */
1.41 espie 513: bool shutUp = false; /* true if we put a no echo command
1.1 deraadt 514: * into the command file */
1.41 espie 515: bool errOff = false; /* true if we turned error checking
1.1 deraadt 516: * off before printing the command
517: * and need to turn it back on */
1.40 espie 518: char *cmdTemplate; /* Template to use when printing the
1.1 deraadt 519: * command */
1.40 espie 520: char *cmdStart; /* Start of expanded command */
521: LstNode cmdNode; /* Node for replacing the command */
522: char *cmd = (char *)cmdp;
523: Job *job = (Job *)jobp;
1.1 deraadt 524:
1.2 deraadt 525: noSpecials = (noExecute && !(job->node->type & OP_MAKE));
1.1 deraadt 526:
1.2 deraadt 527: if (strcmp(cmd, "...") == 0) {
1.6 millert 528: job->node->type |= OP_SAVE_CMDS;
1.1 deraadt 529: if ((job->flags & JOB_IGNDOTS) == 0) {
1.29 espie 530: job->tailCmds = Lst_Succ(Lst_Member(&job->node->commands, cmd));
1.26 espie 531: return 0;
1.2 deraadt 532: }
1.26 espie 533: return 1;
1.1 deraadt 534: }
535:
1.2 deraadt 536: #define DBPRINTF(fmt, arg) if (DEBUG(JOB)) { \
1.40 espie 537: (void)fprintf(stdout, fmt, arg); \
538: (void)fflush(stdout); \
1.2 deraadt 539: } \
1.40 espie 540: (void)fprintf(job->cmdFILE, fmt, arg); \
541: (void)fflush(job->cmdFILE);
1.1 deraadt 542:
543: numCommands += 1;
544:
1.40 espie 545: /* For debugging, we replace each command with the result of expanding
546: * the variables in the command. */
1.29 espie 547: cmdNode = Lst_Member(&job->node->commands, cmd);
1.41 espie 548: cmdStart = cmd = Var_Subst(cmd, &job->node->context, false);
1.25 espie 549: Lst_Replace(cmdNode, cmdStart);
1.1 deraadt 550:
551: cmdTemplate = "%s\n";
552:
553: /*
554: * Check for leading @' and -'s to control echoing and error checking.
555: */
1.34 espie 556: for (;; cmd++) {
1.40 espie 557: if (*cmd == '@')
1.41 espie 558: shutUp = DEBUG(LOUD) ? false : true;
1.34 espie 559: else if (*cmd == '-')
1.41 espie 560: errOff = true;
1.34 espie 561: else if (*cmd != '+')
562: break;
1.1 deraadt 563: }
564:
1.40 espie 565: while (isspace(*cmd))
1.1 deraadt 566: cmd++;
567:
568: if (shutUp) {
1.2 deraadt 569: if (!(job->flags & JOB_SILENT) && !noSpecials &&
1.1 deraadt 570: commandShell->hasEchoCtl) {
1.2 deraadt 571: DBPRINTF("%s\n", commandShell->echoOff);
1.1 deraadt 572: } else {
1.41 espie 573: shutUp = false;
1.1 deraadt 574: }
575: }
576:
577: if (errOff) {
1.2 deraadt 578: if ( !(job->flags & JOB_IGNERR) && !noSpecials) {
1.1 deraadt 579: if (commandShell->hasErrCtl) {
580: /*
581: * we don't want the error-control commands showing
582: * up either, so we turn off echoing while executing
583: * them. We could put another field in the shell
584: * structure to tell JobDoOutput to look for this
585: * string too, but why make it any more complex than
586: * it already is?
587: */
1.2 deraadt 588: if (!(job->flags & JOB_SILENT) && !shutUp &&
1.1 deraadt 589: commandShell->hasEchoCtl) {
1.2 deraadt 590: DBPRINTF("%s\n", commandShell->echoOff);
591: DBPRINTF("%s\n", commandShell->ignErr);
592: DBPRINTF("%s\n", commandShell->echoOn);
1.1 deraadt 593: } else {
1.2 deraadt 594: DBPRINTF("%s\n", commandShell->ignErr);
1.1 deraadt 595: }
596: } else if (commandShell->ignErr &&
1.2 deraadt 597: (*commandShell->ignErr != '\0'))
1.1 deraadt 598: {
599: /*
600: * The shell has no error control, so we need to be
601: * weird to get it to ignore any errors from the command.
602: * If echoing is turned on, we turn it off and use the
603: * errCheck template to echo the command. Leave echoing
604: * off so the user doesn't see the weirdness we go through
605: * to ignore errors. Set cmdTemplate to use the weirdness
606: * instead of the simple "%s\n" template.
607: */
1.2 deraadt 608: if (!(job->flags & JOB_SILENT) && !shutUp &&
1.1 deraadt 609: commandShell->hasEchoCtl) {
1.2 deraadt 610: DBPRINTF("%s\n", commandShell->echoOff);
611: DBPRINTF(commandShell->errCheck, cmd);
1.41 espie 612: shutUp = true;
1.1 deraadt 613: }
614: cmdTemplate = commandShell->ignErr;
615: /*
1.6 millert 616: * The error ignoration (hee hee) is already taken care
1.1 deraadt 617: * of by the ignErr template, so pretend error checking
618: * is still on.
619: */
1.41 espie 620: errOff = false;
1.1 deraadt 621: } else {
1.41 espie 622: errOff = false;
1.1 deraadt 623: }
624: } else {
1.41 espie 625: errOff = false;
1.1 deraadt 626: }
627: }
1.6 millert 628:
1.2 deraadt 629: DBPRINTF(cmdTemplate, cmd);
1.6 millert 630:
1.1 deraadt 631: if (errOff) {
632: /*
633: * If echoing is already off, there's no point in issuing the
634: * echoOff command. Otherwise we issue it and pretend it was on
635: * for the whole command...
636: */
637: if (!shutUp && !(job->flags & JOB_SILENT) && commandShell->hasEchoCtl){
1.2 deraadt 638: DBPRINTF("%s\n", commandShell->echoOff);
1.41 espie 639: shutUp = true;
1.1 deraadt 640: }
1.2 deraadt 641: DBPRINTF("%s\n", commandShell->errCheck);
1.1 deraadt 642: }
643: if (shutUp) {
1.2 deraadt 644: DBPRINTF("%s\n", commandShell->echoOn);
1.1 deraadt 645: }
1.26 espie 646: return 1;
1.1 deraadt 647: }
648:
649: /*-
650: *-----------------------------------------------------------------------
651: * JobSaveCommand --
652: * Save a command to be executed when everything else is done.
653: * Callback function for JobFinish...
654: *
655: * Side Effects:
656: * The command is tacked onto the end of postCommands's commands list.
657: *-----------------------------------------------------------------------
658: */
1.27 espie 659: static void
1.2 deraadt 660: JobSaveCommand(cmd, gn)
1.40 espie 661: void *cmd;
662: void *gn;
1.1 deraadt 663: {
1.40 espie 664: GNode *g = (GNode *)gn;
665: char *result;
1.28 espie 666:
1.41 espie 667: result = Var_Subst((char *)cmd, &g->context, false);
1.29 espie 668: Lst_AtEnd(&postCommands->commands, result);
1.2 deraadt 669: }
670:
671:
672: /*-
673: *-----------------------------------------------------------------------
674: * JobClose --
675: * Called to close both input and output pipes when a job is finished.
676: *
677: * Side Effects:
678: * The file descriptors associated with the job are closed.
679: *-----------------------------------------------------------------------
680: */
681: static void
682: JobClose(job)
683: Job *job;
684: {
685: if (usePipes) {
686: #ifdef RMT_WILL_WATCH
687: Rmt_Ignore(job->inPipe);
688: #else
1.8 deraadt 689: FD_CLR(job->inPipe, outputsp);
1.2 deraadt 690: #endif
691: if (job->outPipe != job->inPipe) {
1.40 espie 692: (void)close(job->outPipe);
1.2 deraadt 693: }
1.41 espie 694: JobDoOutput(job, true);
1.40 espie 695: (void)close(job->inPipe);
1.2 deraadt 696: } else {
1.40 espie 697: (void)close(job->outFd);
1.41 espie 698: JobDoOutput(job, true);
1.2 deraadt 699: }
1.1 deraadt 700: }
701:
702: /*-
703: *-----------------------------------------------------------------------
704: * JobFinish --
705: * Do final processing for the given job including updating
706: * parents and starting new jobs as available/necessary. Note
707: * that we pay no attention to the JOB_IGNERR flag here.
708: * This is because when we're called because of a noexecute flag
709: * or something, jstat.w_status is 0 and when called from
710: * Job_CatchChildren, the status is zeroed if it s/b ignored.
711: *
712: * Side Effects:
713: * Some nodes may be put on the toBeMade queue.
714: * Final commands for the job are placed on postCommands.
715: *
1.6 millert 716: * If we got an error and are aborting (aborting == ABORT_ERROR) and
1.1 deraadt 717: * the job list is now empty, we are done for the day.
1.6 millert 718: * If we recognized an error (errors !=0), we set the aborting flag
1.1 deraadt 719: * to ABORT_ERROR so no more jobs will be started.
720: *-----------------------------------------------------------------------
721: */
722: /*ARGSUSED*/
723: static void
1.2 deraadt 724: JobFinish(job, status)
1.40 espie 725: Job *job; /* job to finish */
726: int *status; /* sub-why job went away */
1.2 deraadt 727: {
1.41 espie 728: bool done;
1.2 deraadt 729:
730: if ((WIFEXITED(*status) &&
1.40 espie 731: WEXITSTATUS(*status) != 0 && !(job->flags & JOB_IGNERR)) ||
732: (WIFSIGNALED(*status) && WTERMSIG(*status) != SIGCONT))
1.1 deraadt 733: {
734: /*
735: * If it exited non-zero and either we're doing things our
736: * way or we're not ignoring errors, the job is finished.
737: * Similarly, if the shell died because of a signal
738: * the job is also finished. In these
739: * cases, finish out the job's output before printing the exit
740: * status...
741: */
1.2 deraadt 742: #ifdef REMOTE
743: KILL(job->pid, SIGCONT);
744: #endif
745: JobClose(job);
1.1 deraadt 746: if (job->cmdFILE != NULL && job->cmdFILE != stdout) {
1.40 espie 747: (void)fclose(job->cmdFILE);
1.1 deraadt 748: }
1.41 espie 749: done = true;
1.2 deraadt 750: #ifdef REMOTE
751: if (job->flags & JOB_REMOTE)
752: Rmt_Done(job->rmtID, job->node);
753: #endif
754: } else if (WIFEXITED(*status)) {
1.1 deraadt 755: /*
756: * Deal with ignored errors in -B mode. We need to print a message
757: * telling of the ignored error as well as setting status.w_status
758: * to 0 so the next command gets run. To do this, we set done to be
1.41 espie 759: * true if in -B mode and the job exited non-zero.
1.2 deraadt 760: */
761: done = WEXITSTATUS(*status) != 0;
1.6 millert 762: /*
1.2 deraadt 763: * Old comment said: "Note we don't
1.1 deraadt 764: * want to close down any of the streams until we know we're at the
1.2 deraadt 765: * end."
766: * But we do. Otherwise when are we going to print the rest of the
767: * stuff?
768: */
769: JobClose(job);
770: #ifdef REMOTE
771: if (job->flags & JOB_REMOTE)
772: Rmt_Done(job->rmtID, job->node);
773: #endif /* REMOTE */
1.1 deraadt 774: } else {
775: /*
776: * No need to close things down or anything.
777: */
1.41 espie 778: done = false;
1.1 deraadt 779: }
1.6 millert 780:
1.1 deraadt 781: if (done ||
1.2 deraadt 782: WIFSTOPPED(*status) ||
1.40 espie 783: (WIFSIGNALED(*status) && WTERMSIG(*status) == SIGCONT) ||
1.1 deraadt 784: DEBUG(JOB))
785: {
786: FILE *out;
1.6 millert 787:
1.2 deraadt 788: if (compatMake && !usePipes && (job->flags & JOB_IGNERR)) {
1.1 deraadt 789: /*
790: * If output is going to a file and this job is ignoring
791: * errors, arrange to have the exit status sent to the
792: * output file as well.
793: */
1.2 deraadt 794: out = fdopen(job->outFd, "w");
1.1 deraadt 795: } else {
796: out = stdout;
797: }
798:
1.2 deraadt 799: if (WIFEXITED(*status)) {
800: if (DEBUG(JOB)) {
1.40 espie 801: (void)fprintf(stdout, "Process %d exited.\n", job->pid);
802: (void)fflush(stdout);
1.2 deraadt 803: }
804: if (WEXITSTATUS(*status) != 0) {
1.1 deraadt 805: if (usePipes && job->node != lastNode) {
1.2 deraadt 806: MESSAGE(out, job->node);
1.1 deraadt 807: lastNode = job->node;
808: }
1.40 espie 809: (void)fprintf(out, "*** Error code %d%s\n",
1.2 deraadt 810: WEXITSTATUS(*status),
811: (job->flags & JOB_IGNERR) ? "(ignored)" : "");
1.1 deraadt 812:
813: if (job->flags & JOB_IGNERR) {
1.2 deraadt 814: *status = 0;
1.1 deraadt 815: }
816: } else if (DEBUG(JOB)) {
817: if (usePipes && job->node != lastNode) {
1.2 deraadt 818: MESSAGE(out, job->node);
1.1 deraadt 819: lastNode = job->node;
820: }
1.40 espie 821: (void)fprintf(out, "*** Completed successfully\n");
1.2 deraadt 822: }
823: } else if (WIFSTOPPED(*status)) {
824: if (DEBUG(JOB)) {
1.40 espie 825: (void)fprintf(stdout, "Process %d stopped.\n", job->pid);
826: (void)fflush(stdout);
1.1 deraadt 827: }
828: if (usePipes && job->node != lastNode) {
1.2 deraadt 829: MESSAGE(out, job->node);
1.1 deraadt 830: lastNode = job->node;
831: }
1.2 deraadt 832: if (!(job->flags & JOB_REMIGRATE)) {
1.40 espie 833: (void)fprintf(out, "*** Stopped -- signal %d\n",
1.6 millert 834: WSTOPSIG(*status));
1.1 deraadt 835: }
836: job->flags |= JOB_RESUME;
1.29 espie 837: Lst_AtEnd(&stoppedJobs, job);
1.2 deraadt 838: #ifdef REMOTE
839: if (job->flags & JOB_REMIGRATE)
840: JobRestart(job);
841: #endif
1.40 espie 842: (void)fflush(out);
1.1 deraadt 843: return;
1.2 deraadt 844: } else if (WTERMSIG(*status) == SIGCONT) {
1.1 deraadt 845: /*
846: * If the beastie has continued, shift the Job from the stopped
1.6 millert 847: * list to the running one (or re-stop it if concurrency is
1.1 deraadt 848: * exceeded) and go and get another child.
849: */
850: if (job->flags & (JOB_RESUME|JOB_REMIGRATE|JOB_RESTART)) {
851: if (usePipes && job->node != lastNode) {
1.2 deraadt 852: MESSAGE(out, job->node);
1.1 deraadt 853: lastNode = job->node;
854: }
1.40 espie 855: (void)fprintf(out, "*** Continued\n");
1.1 deraadt 856: }
1.2 deraadt 857: if (!(job->flags & JOB_CONTINUING)) {
858: if (DEBUG(JOB)) {
1.40 espie 859: (void)fprintf(stdout,
1.2 deraadt 860: "Warning: process %d was not continuing.\n",
861: job->pid);
1.40 espie 862: (void)fflush(stdout);
1.2 deraadt 863: }
864: #ifdef notdef
865: /*
866: * We don't really want to restart a job from scratch just
867: * because it continued, especially not without killing the
1.40 espie 868: * continuing process! That's why this is ifdef'ed out.
1.2 deraadt 869: * FD - 9/17/90
870: */
1.1 deraadt 871: JobRestart(job);
1.2 deraadt 872: #endif
873: }
874: job->flags &= ~JOB_CONTINUING;
1.40 espie 875: Lst_AtEnd(&jobs, job);
1.2 deraadt 876: nJobs += 1;
877: if (!(job->flags & JOB_REMOTE)) {
878: if (DEBUG(JOB)) {
1.40 espie 879: (void)fprintf(stdout,
1.2 deraadt 880: "Process %d is continuing locally.\n",
881: job->pid);
1.40 espie 882: (void)fflush(stdout);
883: }
1.2 deraadt 884: nLocal += 1;
1.1 deraadt 885: }
1.2 deraadt 886: if (nJobs == maxJobs) {
1.41 espie 887: jobFull = true;
1.2 deraadt 888: if (DEBUG(JOB)) {
1.40 espie 889: (void)fprintf(stdout, "Job queue is full.\n");
890: (void)fflush(stdout);
891: }
892: }
893: (void)fflush(out);
894: return;
1.1 deraadt 895: } else {
896: if (usePipes && job->node != lastNode) {
1.2 deraadt 897: MESSAGE(out, job->node);
1.1 deraadt 898: lastNode = job->node;
899: }
1.40 espie 900: (void)fprintf(out, "*** Signal %d\n", WTERMSIG(*status));
1.1 deraadt 901: }
902:
1.40 espie 903: (void)fflush(out);
1.1 deraadt 904: }
905:
906: /*
907: * Now handle the -B-mode stuff. If the beast still isn't finished,
908: * try and restart the job on the next command. If JobStart says it's
909: * ok, it's ok. If there's an error, this puppy is done.
910: */
1.40 espie 911: if (compatMake && WIFEXITED(*status) && job->node->current != NULL) {
1.2 deraadt 912: switch (JobStart(job->node, job->flags & JOB_IGNDOTS, job)) {
913: case JOB_RUNNING:
1.41 espie 914: done = false;
1.2 deraadt 915: break;
916: case JOB_ERROR:
1.41 espie 917: done = true;
1.2 deraadt 918: W_SETEXITSTATUS(status, 1);
919: break;
920: case JOB_FINISHED:
921: /*
922: * If we got back a JOB_FINISHED code, JobStart has already
923: * called Make_Update and freed the job descriptor. We set
924: * done to false here to avoid fake cycles and double frees.
925: * JobStart needs to do the update so we can proceed up the
926: * graph when given the -n flag..
927: */
1.41 espie 928: done = false;
1.2 deraadt 929: break;
1.1 deraadt 930: }
1.40 espie 931: } else
1.41 espie 932: done = true;
1.1 deraadt 933:
934: if (done &&
1.40 espie 935: aborting != ABORT_ERROR &&
936: aborting != ABORT_INTERRUPT &&
937: *status == 0) {
938: /* As long as we aren't aborting and the job didn't return a non-zero
1.1 deraadt 939: * status that we shouldn't ignore, we call Make_Update to update
940: * the parents. In addition, any saved commands for the node are placed
1.40 espie 941: * on the .END target. */
1.27 espie 942: Lst_ForEachFrom(job->tailCmds, JobSaveCommand, job->node);
1.1 deraadt 943: job->node->made = MADE;
1.2 deraadt 944: Make_Update(job->node);
1.28 espie 945: free(job);
1.5 briggs 946: } else if (*status != 0) {
1.1 deraadt 947: errors += 1;
1.28 espie 948: free(job);
1.1 deraadt 949: }
950:
1.2 deraadt 951: JobRestartJobs();
1.1 deraadt 952:
953: /*
954: * Set aborting if any error.
955: */
1.40 espie 956: if (errors && !keepgoing && aborting != ABORT_INTERRUPT) {
1.1 deraadt 957: /*
958: * If we found any errors in this batch of children and the -k flag
959: * wasn't given, we set the aborting flag so no more jobs get
960: * started.
961: */
962: aborting = ABORT_ERROR;
963: }
1.6 millert 964:
1.40 espie 965: if (aborting == ABORT_ERROR && Job_Empty()) {
1.1 deraadt 966: /*
967: * If we are aborting and the job table is now empty, we finish.
968: */
1.40 espie 969: (void)eunlink(tfile);
1.2 deraadt 970: Finish(errors);
1.40 espie 971: }
1.1 deraadt 972: }
973:
974: /*-
975: *-----------------------------------------------------------------------
976: * Job_Touch --
977: * Touch the given target. Called by JobStart when the -t flag was
978: * given
979: *
980: * Side Effects:
981: * The data modification of the file is changed. In addition, if the
982: * file did not exist, it is created.
983: *-----------------------------------------------------------------------
984: */
985: void
1.2 deraadt 986: Job_Touch(gn, silent)
1.40 espie 987: GNode *gn; /* the node of the file to touch */
1.41 espie 988: bool silent; /* true if should not print messages */
1.1 deraadt 989: {
1.40 espie 990: int streamID; /* ID of stream opened to do the touch */
1.1 deraadt 991:
992: if (gn->type & (OP_JOIN|OP_USE|OP_EXEC|OP_OPTIONAL)) {
993: /*
994: * .JOIN, .USE, .ZEROTIME and .OPTIONAL targets are "virtual" targets
995: * and, as such, shouldn't really be created.
996: */
997: return;
998: }
1.6 millert 999:
1.1 deraadt 1000: if (!silent) {
1.40 espie 1001: (void)fprintf(stdout, "touch %s\n", gn->name);
1002: (void)fflush(stdout);
1.1 deraadt 1003: }
1004:
1005: if (noExecute) {
1006: return;
1007: }
1008:
1009: if (gn->type & OP_ARCHV) {
1.2 deraadt 1010: Arch_Touch(gn);
1.1 deraadt 1011: } else if (gn->type & OP_LIB) {
1.2 deraadt 1012: Arch_TouchLib(gn);
1.1 deraadt 1013: } else {
1.40 espie 1014: const char *file = gn->path != NULL ? gn->path : gn->name;
1.1 deraadt 1015:
1.40 espie 1016: if (set_times(file) == -1){
1.2 deraadt 1017: streamID = open(file, O_RDWR | O_CREAT, 0666);
1.1 deraadt 1018:
1019: if (streamID >= 0) {
1020: char c;
1021:
1022: /*
1023: * Read and write a byte to the file to change the
1024: * modification time, then close the file.
1025: */
1026: if (read(streamID, &c, 1) == 1) {
1.40 espie 1027: (void)lseek(streamID, 0, SEEK_SET);
1028: (void)write(streamID, &c, 1);
1.1 deraadt 1029: }
1.6 millert 1030:
1.40 espie 1031: (void)close(streamID);
1.2 deraadt 1032: } else {
1.40 espie 1033: (void)fprintf(stdout, "*** couldn't touch %s: %s",
1.2 deraadt 1034: file, strerror(errno));
1.40 espie 1035: (void)fflush(stdout);
1.2 deraadt 1036: }
1.1 deraadt 1037: }
1038: }
1039: }
1040:
1041: /*-
1042: *-----------------------------------------------------------------------
1043: * Job_CheckCommands --
1.6 millert 1044: * Make sure the given node has all the commands it needs.
1.1 deraadt 1045: *
1046: * Results:
1.41 espie 1047: * true if the commands list is/was ok.
1.1 deraadt 1048: *
1049: * Side Effects:
1050: * The node will have commands from the .DEFAULT rule added to it
1051: * if it needs them.
1052: *-----------------------------------------------------------------------
1053: */
1.41 espie 1054: bool
1.2 deraadt 1055: Job_CheckCommands(gn, abortProc)
1.40 espie 1056: GNode *gn; /* The target whose commands need
1.1 deraadt 1057: * verifying */
1.40 espie 1058: void (*abortProc)(char *, ...);
1.1 deraadt 1059: /* Function to abort with message */
1060: {
1.29 espie 1061: if (OP_NOP(gn->type) && Lst_IsEmpty(&gn->commands) &&
1.1 deraadt 1062: (gn->type & OP_LIB) == 0) {
1063: /*
1064: * No commands. Look for .DEFAULT rule from which we might infer
1.6 millert 1065: * commands
1.1 deraadt 1066: */
1.40 espie 1067: if (DEFAULT != NULL && !Lst_IsEmpty(&DEFAULT->commands)) {
1.1 deraadt 1068: /*
1069: * Make only looks for a .DEFAULT if the node was never the
1070: * target of an operator, so that's what we do too. If
1071: * a .DEFAULT was given, we substitute its commands for gn's
1072: * commands and set the IMPSRC variable to be the target's name
1073: * The DEFAULT node acts like a transformation rule, in that
1074: * gn also inherits any attributes or sources attached to
1075: * .DEFAULT itself.
1076: */
1077: Make_HandleUse(DEFAULT, gn);
1.31 espie 1078: Varq_Set(IMPSRC_INDEX, Varq_Value(TARGET_INDEX, gn), gn);
1.37 espie 1079: } else if (is_out_of_date(Dir_MTime(gn))) {
1.1 deraadt 1080: /*
1081: * The node wasn't the target of an operator we have no .DEFAULT
1082: * rule to go on and the target doesn't already exist. There's
1083: * nothing more we can do for this branch. If the -k flag wasn't
1084: * given, we stop in our tracks, otherwise we just don't update
1.6 millert 1085: * this node's parents so they never get examined.
1.1 deraadt 1086: */
1.2 deraadt 1087: static const char msg[] = "make: don't know how to make";
1088:
1.1 deraadt 1089: if (gn->type & OP_OPTIONAL) {
1.40 espie 1090: (void)fprintf(stdout, "%s %s(ignored)\n", msg, gn->name);
1091: (void)fflush(stdout);
1.1 deraadt 1092: } else if (keepgoing) {
1.40 espie 1093: (void)fprintf(stdout, "%s %s(continuing)\n", msg, gn->name);
1094: (void)fflush(stdout);
1.41 espie 1095: return false;
1.1 deraadt 1096: } else {
1.39 espie 1097: (*abortProc)("%s %s. Stop in %s.", msg, gn->name,
1.40 espie 1098: Var_Value(".CURDIR"));
1.41 espie 1099: return false;
1.1 deraadt 1100: }
1101: }
1102: }
1.41 espie 1103: return true;
1.1 deraadt 1104: }
1105: #ifdef RMT_WILL_WATCH
1106: /*-
1107: *-----------------------------------------------------------------------
1108: * JobLocalInput --
1109: * Handle a pipe becoming readable. Callback function for Rmt_Watch
1110: *
1111: * Side Effects:
1112: * JobDoOutput is called.
1113: *-----------------------------------------------------------------------
1114: */
1115: /*ARGSUSED*/
1116: static void
1117: JobLocalInput(stream, job)
1.40 espie 1118: int stream; /* Stream that's ready (ignored) */
1119: Job *job; /* Job to which the stream belongs */
1.1 deraadt 1120: {
1.41 espie 1121: JobDoOutput(job, false);
1.1 deraadt 1122: }
1123: #endif /* RMT_WILL_WATCH */
1124:
1125: /*-
1126: *-----------------------------------------------------------------------
1127: * JobExec --
1128: * Execute the shell for the given job. Called from JobStart and
1129: * JobRestart.
1130: *
1131: * Side Effects:
1132: * A shell is executed, outputs is altered and the Job structure added
1133: * to the job table.
1134: *-----------------------------------------------------------------------
1135: */
1136: static void
1137: JobExec(job, argv)
1.40 espie 1138: Job *job; /* Job to execute */
1139: char **argv;
1.1 deraadt 1140: {
1.40 espie 1141: int cpid; /* ID of new child */
1.6 millert 1142:
1.1 deraadt 1143: if (DEBUG(JOB)) {
1.40 espie 1144: int i;
1.6 millert 1145:
1.40 espie 1146: (void)fprintf(stdout, "Running %s %sly\n", job->node->name,
1.2 deraadt 1147: job->flags&JOB_REMOTE?"remote":"local");
1.40 espie 1148: (void)fprintf(stdout, "\tCommand: ");
1.2 deraadt 1149: for (i = 0; argv[i] != NULL; i++) {
1.40 espie 1150: (void)fprintf(stdout, "%s ", argv[i]);
1.1 deraadt 1151: }
1.40 espie 1152: (void)fprintf(stdout, "\n");
1153: (void)fflush(stdout);
1.1 deraadt 1154: }
1.6 millert 1155:
1.1 deraadt 1156: /*
1157: * Some jobs produce no output and it's disconcerting to have
1.6 millert 1158: * no feedback of their running (since they produce no output, the
1.1 deraadt 1159: * banner with their name in it never appears). This is an attempt to
1160: * provide that feedback, even if nothing follows it.
1161: */
1.40 espie 1162: if (lastNode != job->node && (job->flags & JOB_FIRST) &&
1.2 deraadt 1163: !(job->flags & JOB_SILENT)) {
1164: MESSAGE(stdout, job->node);
1.1 deraadt 1165: lastNode = job->node;
1166: }
1.6 millert 1167:
1.1 deraadt 1168: #ifdef RMT_NO_EXEC
1169: if (job->flags & JOB_REMOTE) {
1170: goto jobExecFinish;
1171: }
1172: #endif /* RMT_NO_EXEC */
1173:
1.2 deraadt 1174: if ((cpid = vfork()) == -1) {
1175: Punt("Cannot fork");
1.1 deraadt 1176: } else if (cpid == 0) {
1177:
1178: /*
1179: * Must duplicate the input stream down to the child's input and
1.6 millert 1180: * reset it to the beginning (again). Since the stream was marked
1.1 deraadt 1181: * close-on-exec, we must clear that bit in the new input.
1182: */
1.2 deraadt 1183: if (dup2(FILENO(job->cmdFILE), 0) == -1)
1184: Punt("Cannot dup2: %s", strerror(errno));
1.40 espie 1185: (void)fcntl(0, F_SETFD, 0);
1186: (void)lseek(0, 0, SEEK_SET);
1.6 millert 1187:
1.1 deraadt 1188: if (usePipes) {
1189: /*
1190: * Set up the child's output to be routed through the pipe
1191: * we've created for it.
1192: */
1.2 deraadt 1193: if (dup2(job->outPipe, 1) == -1)
1194: Punt("Cannot dup2: %s", strerror(errno));
1.1 deraadt 1195: } else {
1196: /*
1197: * We're capturing output in a file, so we duplicate the
1198: * descriptor to the temporary file into the standard
1199: * output.
1200: */
1.2 deraadt 1201: if (dup2(job->outFd, 1) == -1)
1202: Punt("Cannot dup2: %s", strerror(errno));
1.1 deraadt 1203: }
1204: /*
1205: * The output channels are marked close on exec. This bit was
1.6 millert 1206: * duplicated by the dup2 (on some systems), so we have to clear
1.1 deraadt 1207: * it before routing the shell's error output to the same place as
1208: * its standard output.
1209: */
1.40 espie 1210: (void)fcntl(1, F_SETFD, 0);
1.2 deraadt 1211: if (dup2(1, 2) == -1)
1212: Punt("Cannot dup2: %s", strerror(errno));
1.1 deraadt 1213:
1214: #ifdef USE_PGRP
1215: /*
1216: * We want to switch the child into a different process family so
1217: * we can kill it and all its descendants in one fell swoop,
1218: * by killing its process family, but not commit suicide.
1219: */
1.2 deraadt 1220: # if defined(SYSV)
1.40 espie 1221: (void)setsid();
1.2 deraadt 1222: # else
1.40 espie 1223: (void)setpgid(0, getpid());
1.2 deraadt 1224: # endif
1225: #endif /* USE_PGRP */
1.1 deraadt 1226:
1.2 deraadt 1227: #ifdef REMOTE
1228: if (job->flags & JOB_REMOTE) {
1.41 espie 1229: Rmt_Exec(shellPath, argv, false);
1.6 millert 1230: } else
1.2 deraadt 1231: #endif /* REMOTE */
1.40 espie 1232: (void)execv(shellPath, argv);
1.2 deraadt 1233:
1.40 espie 1234: (void)write(2, "Could not execute shell\n",
1.2 deraadt 1235: sizeof("Could not execute shell"));
1236: _exit(1);
1.1 deraadt 1237: } else {
1.2 deraadt 1238: #ifdef REMOTE
1.43 millert 1239: sigset_t mask, omask;
1240:
1241: sigemptyset(&mask);
1242: sigaddset(&mask, SIGCHLD);
1243: sigprocmask(SIG_BLOCK, &mask, &omask);
1.2 deraadt 1244: #endif
1.1 deraadt 1245: job->pid = cpid;
1246:
1247: if (usePipes && (job->flags & JOB_FIRST) ) {
1248: /*
1249: * The first time a job is run for a node, we set the current
1250: * position in the buffer to the beginning and mark another
1251: * stream to watch in the outputs mask
1252: */
1253: job->curPos = 0;
1.6 millert 1254:
1.1 deraadt 1255: #ifdef RMT_WILL_WATCH
1256: Rmt_Watch(job->inPipe, JobLocalInput, job);
1257: #else
1.8 deraadt 1258: if (outputsp == NULL || job->inPipe > outputsn) {
1259: int bytes = howmany(job->inPipe+1, NFDBITS) * sizeof(fd_mask);
1260: int obytes = howmany(outputsn+1, NFDBITS) * sizeof(fd_mask);
1261:
1.9 flipk 1262: if (outputsp == NULL || obytes != bytes) {
1.8 deraadt 1263: outputsp = realloc(outputsp, bytes);
1264: if (outputsp == NULL)
1265: return;
1266: memset(outputsp + obytes, 0, bytes - obytes);
1267: }
1268: outputsn = job->inPipe;
1269: }
1270: FD_SET(job->inPipe, outputsp);
1.1 deraadt 1271: #endif /* RMT_WILL_WATCH */
1272: }
1273:
1274: if (job->flags & JOB_REMOTE) {
1.2 deraadt 1275: #ifndef REMOTE
1.1 deraadt 1276: job->rmtID = 0;
1.2 deraadt 1277: #else
1278: job->rmtID = Rmt_LastID(job->pid);
1279: #endif /* REMOTE */
1.1 deraadt 1280: } else {
1281: nLocal += 1;
1282: /*
1.2 deraadt 1283: * XXX: Used to not happen if REMOTE. Why?
1.1 deraadt 1284: */
1.2 deraadt 1285: if (job->cmdFILE != NULL && job->cmdFILE != stdout) {
1.40 espie 1286: (void)fclose(job->cmdFILE);
1.1 deraadt 1287: job->cmdFILE = NULL;
1288: }
1289: }
1.2 deraadt 1290: #ifdef REMOTE
1.43 millert 1291: sigprocmask(SIG_SETMASK, &omask, NULL);
1.2 deraadt 1292: #endif
1.1 deraadt 1293: }
1294:
1295: #ifdef RMT_NO_EXEC
1.6 millert 1296: jobExecFinish:
1.1 deraadt 1297: #endif
1298: /*
1299: * Now the job is actually running, add it to the table.
1300: */
1301: nJobs += 1;
1.29 espie 1302: Lst_AtEnd(&jobs, job);
1.1 deraadt 1303: if (nJobs == maxJobs) {
1.41 espie 1304: jobFull = true;
1.1 deraadt 1305: }
1306: }
1307:
1308: /*-
1309: *-----------------------------------------------------------------------
1310: * JobMakeArgv --
1311: * Create the argv needed to execute the shell for a given job.
1312: *-----------------------------------------------------------------------
1313: */
1314: static void
1315: JobMakeArgv(job, argv)
1.40 espie 1316: Job *job;
1.1 deraadt 1317: char **argv;
1318: {
1.40 espie 1319: int argc;
1320: static char args[10]; /* For merged arguments */
1.6 millert 1321:
1.1 deraadt 1322: argv[0] = shellName;
1323: argc = 1;
1324:
1.40 espie 1325: if ((commandShell->exit && *commandShell->exit != '-') ||
1326: (commandShell->echo && *commandShell->echo != '-'))
1.1 deraadt 1327: {
1328: /*
1329: * At least one of the flags doesn't have a minus before it, so
1330: * merge them together. Have to do this because the *(&(@*#*&#$#
1331: * Bourne shell thinks its second argument is a file to source.
1332: * Grrrr. Note the ten-character limitation on the combined arguments.
1333: */
1334: (void)sprintf(args, "-%s%s",
1335: ((job->flags & JOB_IGNERR) ? "" :
1336: (commandShell->exit ? commandShell->exit : "")),
1337: ((job->flags & JOB_SILENT) ? "" :
1338: (commandShell->echo ? commandShell->echo : "")));
1339:
1340: if (args[1]) {
1341: argv[argc] = args;
1342: argc++;
1343: }
1344: } else {
1345: if (!(job->flags & JOB_IGNERR) && commandShell->exit) {
1346: argv[argc] = commandShell->exit;
1347: argc++;
1348: }
1349: if (!(job->flags & JOB_SILENT) && commandShell->echo) {
1350: argv[argc] = commandShell->echo;
1351: argc++;
1352: }
1353: }
1.2 deraadt 1354: argv[argc] = NULL;
1.1 deraadt 1355: }
1356:
1357: /*-
1358: *-----------------------------------------------------------------------
1359: * JobRestart --
1.6 millert 1360: * Restart a job that stopped for some reason.
1.1 deraadt 1361: *
1362: * Side Effects:
1363: * jobFull will be set if the job couldn't be run.
1364: *-----------------------------------------------------------------------
1365: */
1366: static void
1367: JobRestart(job)
1.40 espie 1368: Job *job; /* Job to restart */
1.1 deraadt 1369: {
1.2 deraadt 1370: #ifdef REMOTE
1371: int host;
1372: #endif
1.6 millert 1373:
1.1 deraadt 1374: if (job->flags & JOB_REMIGRATE) {
1.2 deraadt 1375: if (
1376: #ifdef REMOTE
1377: verboseRemigrates ||
1378: #endif
1379: DEBUG(JOB)) {
1.40 espie 1380: (void)fprintf(stdout, "*** remigrating %x(%s)\n",
1.2 deraadt 1381: job->pid, job->node->name);
1.40 espie 1382: (void)fflush(stdout);
1.1 deraadt 1383: }
1.2 deraadt 1384:
1385: #ifdef REMOTE
1386: if (!Rmt_ReExport(job->pid, job->node, &host)) {
1387: if (verboseRemigrates || DEBUG(JOB)) {
1.40 espie 1388: (void)fprintf(stdout, "*** couldn't migrate...\n");
1389: (void)fflush(stdout);
1.2 deraadt 1390: }
1391: #endif
1392: if (nLocal != maxLocal) {
1.1 deraadt 1393: /*
1394: * Job cannot be remigrated, but there's room on the local
1395: * machine, so resume the job and note that another
1396: * local job has started.
1397: */
1.2 deraadt 1398: if (
1399: #ifdef REMOTE
1400: verboseRemigrates ||
1401: #endif
1402: DEBUG(JOB)) {
1.40 espie 1403: (void)fprintf(stdout, "*** resuming on local machine\n");
1404: (void)fflush(stdout);
1.2 deraadt 1405: }
1.1 deraadt 1406: KILL(job->pid, SIGCONT);
1407: nLocal +=1;
1.2 deraadt 1408: #ifdef REMOTE
1409: job->flags &= ~(JOB_REMIGRATE|JOB_RESUME|JOB_REMOTE);
1410: job->flags |= JOB_CONTINUING;
1411: #else
1.1 deraadt 1412: job->flags &= ~(JOB_REMIGRATE|JOB_RESUME);
1.2 deraadt 1413: #endif
1.1 deraadt 1414: } else {
1415: /*
1416: * Job cannot be restarted. Mark the table as full and
1417: * place the job back on the list of stopped jobs.
1418: */
1.2 deraadt 1419: if (
1420: #ifdef REMOTE
1421: verboseRemigrates ||
1422: #endif
1423: DEBUG(JOB)) {
1.40 espie 1424: (void)fprintf(stdout, "*** holding\n");
1425: (void)fflush(stdout);
1426: }
1.29 espie 1427: Lst_AtFront(&stoppedJobs, job);
1.41 espie 1428: jobFull = true;
1.1 deraadt 1429: if (DEBUG(JOB)) {
1.40 espie 1430: (void)fprintf(stdout, "Job queue is full.\n");
1431: (void)fflush(stdout);
1.1 deraadt 1432: }
1433: return;
1.2 deraadt 1434: }
1435: #ifdef REMOTE
1436: } else {
1437: /*
1438: * Clear out the remigrate and resume flags. Set the continuing
1439: * flag so we know later on that the process isn't exiting just
1440: * because of a signal.
1441: */
1442: job->flags &= ~(JOB_REMIGRATE|JOB_RESUME);
1443: job->flags |= JOB_CONTINUING;
1444: job->rmtID = host;
1.1 deraadt 1445: }
1.2 deraadt 1446: #endif
1.6 millert 1447:
1.29 espie 1448: Lst_AtEnd(&jobs, job);
1.1 deraadt 1449: nJobs += 1;
1450: if (nJobs == maxJobs) {
1.41 espie 1451: jobFull = true;
1.1 deraadt 1452: if (DEBUG(JOB)) {
1.40 espie 1453: (void)fprintf(stdout, "Job queue is full.\n");
1454: (void)fflush(stdout);
1.1 deraadt 1455: }
1456: }
1457: } else if (job->flags & JOB_RESTART) {
1458: /*
1459: * Set up the control arguments to the shell. This is based on the
1460: * flags set earlier for this job. If the JOB_IGNERR flag is clear,
1461: * the 'exit' flag of the commandShell is used to cause it to exit
1462: * upon receiving an error. If the JOB_SILENT flag is clear, the
1463: * 'echo' flag of the commandShell is used to get it to start echoing
1.6 millert 1464: * as soon as it starts processing commands.
1.1 deraadt 1465: */
1466: char *argv[4];
1.6 millert 1467:
1.1 deraadt 1468: JobMakeArgv(job, argv);
1.2 deraadt 1469:
1.1 deraadt 1470: if (DEBUG(JOB)) {
1.40 espie 1471: (void)fprintf(stdout, "Restarting %s...", job->node->name);
1472: (void)fflush(stdout);
1.1 deraadt 1473: }
1.2 deraadt 1474: #ifdef REMOTE
1475: if ((job->node->type&OP_NOEXPORT) ||
1.40 espie 1476: (nLocal < maxLocal && runLocalFirst)
1.2 deraadt 1477: # ifdef RMT_NO_EXEC
1478: || !Rmt_Export(shellPath, argv, job)
1479: # else
1480: || !Rmt_Begin(shellPath, argv, job->node)
1481: # endif
1482: #endif
1483: {
1.40 espie 1484: if (nLocal >= maxLocal && !(job->flags & JOB_SPECIAL)) {
1.1 deraadt 1485: /*
1486: * Can't be exported and not allowed to run locally -- put it
1487: * back on the hold queue and mark the table full
1488: */
1489: if (DEBUG(JOB)) {
1.40 espie 1490: (void)fprintf(stdout, "holding\n");
1491: (void)fflush(stdout);
1.1 deraadt 1492: }
1.29 espie 1493: Lst_AtFront(&stoppedJobs, job);
1.41 espie 1494: jobFull = true;
1.1 deraadt 1495: if (DEBUG(JOB)) {
1.40 espie 1496: (void)fprintf(stdout, "Job queue is full.\n");
1497: (void)fflush(stdout);
1.1 deraadt 1498: }
1499: return;
1.2 deraadt 1500: } else {
1.1 deraadt 1501: /*
1502: * Job may be run locally.
1503: */
1504: if (DEBUG(JOB)) {
1.40 espie 1505: (void)fprintf(stdout, "running locally\n");
1506: (void)fflush(stdout);
1.1 deraadt 1507: }
1508: job->flags &= ~JOB_REMOTE;
1.2 deraadt 1509: }
1510: }
1511: #ifdef REMOTE
1512: else {
1513: /*
1514: * Can be exported. Hooray!
1515: */
1516: if (DEBUG(JOB)) {
1.40 espie 1517: (void)fprintf(stdout, "exporting\n");
1518: (void)fflush(stdout);
1.2 deraadt 1519: }
1520: job->flags |= JOB_REMOTE;
1.1 deraadt 1521: }
1.2 deraadt 1522: #endif
1.1 deraadt 1523: JobExec(job, argv);
1524: } else {
1525: /*
1526: * The job has stopped and needs to be restarted. Why it stopped,
1527: * we don't know...
1528: */
1529: if (DEBUG(JOB)) {
1.40 espie 1530: (void)fprintf(stdout, "Resuming %s...", job->node->name);
1531: (void)fflush(stdout);
1.1 deraadt 1532: }
1533: if (((job->flags & JOB_REMOTE) ||
1.40 espie 1534: nLocal < maxLocal ||
1.2 deraadt 1535: #ifdef REMOTE
1.40 espie 1536: ((job->flags & JOB_SPECIAL) &&
1537: (job->node->type & OP_NOEXPORT) &&
1538: maxLocal == 0)
1.2 deraadt 1539: #else
1540: ((job->flags & JOB_SPECIAL) &&
1.40 espie 1541: maxLocal == 0)
1.2 deraadt 1542: #endif
1.40 espie 1543: ) && nJobs != maxJobs)
1.1 deraadt 1544: {
1545: /*
1546: * If the job is remote, it's ok to resume it as long as the
1547: * maximum concurrency won't be exceeded. If it's local and
1.6 millert 1548: * we haven't reached the local concurrency limit already (or the
1.1 deraadt 1549: * job must be run locally and maxLocal is 0), it's also ok to
1550: * resume it.
1551: */
1.41 espie 1552: bool error;
1.2 deraadt 1553: int status;
1.6 millert 1554:
1.1 deraadt 1555: #ifdef RMT_WANTS_SIGNALS
1556: if (job->flags & JOB_REMOTE) {
1557: error = !Rmt_Signal(job, SIGCONT);
1558: } else
1559: #endif /* RMT_WANTS_SIGNALS */
1.40 espie 1560: error = KILL(job->pid, SIGCONT) != 0;
1.1 deraadt 1561:
1562: if (!error) {
1563: /*
1564: * Make sure the user knows we've continued the beast and
1565: * actually put the thing in the job table.
1566: */
1567: job->flags |= JOB_CONTINUING;
1.2 deraadt 1568: W_SETTERMSIG(&status, SIGCONT);
1569: JobFinish(job, &status);
1.6 millert 1570:
1.1 deraadt 1571: job->flags &= ~(JOB_RESUME|JOB_CONTINUING);
1572: if (DEBUG(JOB)) {
1.40 espie 1573: (void)fprintf(stdout, "done\n");
1574: (void)fflush(stdout);
1.1 deraadt 1575: }
1576: } else {
1577: Error("couldn't resume %s: %s",
1578: job->node->name, strerror(errno));
1.2 deraadt 1579: status = 0;
1580: W_SETEXITSTATUS(&status, 1);
1581: JobFinish(job, &status);
1.1 deraadt 1582: }
1583: } else {
1584: /*
1585: * Job cannot be restarted. Mark the table as full and
1586: * place the job back on the list of stopped jobs.
1587: */
1588: if (DEBUG(JOB)) {
1.40 espie 1589: (void)fprintf(stdout, "table full\n");
1590: (void)fflush(stdout);
1.1 deraadt 1591: }
1.29 espie 1592: Lst_AtFront(&stoppedJobs, job);
1.41 espie 1593: jobFull = true;
1.1 deraadt 1594: if (DEBUG(JOB)) {
1.40 espie 1595: (void)fprintf(stdout, "Job queue is full.\n");
1596: (void)fflush(stdout);
1.1 deraadt 1597: }
1598: }
1599: }
1600: }
1601:
1602: /*-
1603: *-----------------------------------------------------------------------
1604: * JobStart --
1605: * Start a target-creation process going for the target described
1.6 millert 1606: * by the graph node gn.
1.1 deraadt 1607: *
1608: * Results:
1609: * JOB_ERROR if there was an error in the commands, JOB_FINISHED
1610: * if there isn't actually anything left to do for the job and
1611: * JOB_RUNNING if the job has been started.
1612: *
1613: * Side Effects:
1614: * A new Job node is created and added to the list of running
1615: * jobs. PMake is forked and a child shell created.
1616: *-----------------------------------------------------------------------
1617: */
1618: static int
1.2 deraadt 1619: JobStart(gn, flags, previous)
1.40 espie 1620: GNode *gn; /* target to create */
1621: int flags; /* flags for the job to override normal ones.
1.1 deraadt 1622: * e.g. JOB_SPECIAL or JOB_IGNDOTS */
1623: Job *previous; /* The previous Job structure for this node,
1624: * if any. */
1625: {
1.40 espie 1626: Job *job; /* new job descriptor */
1.1 deraadt 1627: char *argv[4]; /* Argument vector to shell */
1.41 espie 1628: bool cmdsOK; /* true if the nodes commands were all right */
1629: bool local; /* Set true if the job was run locally */
1630: bool noExec; /* Set true if we decide not to run the job */
1.1 deraadt 1631:
1.2 deraadt 1632: if (previous != NULL) {
1633: previous->flags &= ~(JOB_FIRST|JOB_IGNERR|JOB_SILENT|JOB_REMOTE);
1.1 deraadt 1634: job = previous;
1635: } else {
1.40 espie 1636: job = emalloc(sizeof(Job));
1.2 deraadt 1637: if (job == NULL) {
1.1 deraadt 1638: Punt("JobStart out of memory");
1639: }
1640: flags |= JOB_FIRST;
1641: }
1642:
1643: job->node = gn;
1.18 espie 1644: job->tailCmds = NULL;
1.1 deraadt 1645:
1646: /*
1647: * Set the initial value of the flags for this job based on the global
1648: * ones and the node's attributes... Any flags supplied by the caller
1649: * are also added to the field.
1650: */
1651: job->flags = 0;
1.2 deraadt 1652: if (Targ_Ignore(gn)) {
1.1 deraadt 1653: job->flags |= JOB_IGNERR;
1654: }
1.2 deraadt 1655: if (Targ_Silent(gn)) {
1.1 deraadt 1656: job->flags |= JOB_SILENT;
1657: }
1658: job->flags |= flags;
1659:
1660: /*
1661: * Check the commands now so any attributes from .DEFAULT have a chance
1662: * to migrate to the node
1663: */
1.2 deraadt 1664: if (!compatMake && job->flags & JOB_FIRST) {
1.1 deraadt 1665: cmdsOK = Job_CheckCommands(gn, Error);
1666: } else {
1.41 espie 1667: cmdsOK = true;
1.1 deraadt 1668: }
1.6 millert 1669:
1.1 deraadt 1670: /*
1.6 millert 1671: * If the -n flag wasn't given, we open up OUR (not the child's)
1.1 deraadt 1672: * temporary file to stuff commands in it. The thing is rd/wr so we don't
1673: * need to reopen it to feed it to the shell. If the -n flag *was* given,
1674: * we just set the file to be stdout. Cute, huh?
1675: */
1676: if ((gn->type & OP_MAKE) || (!noExecute && !touchFlag)) {
1677: /*
1678: * We're serious here, but if the commands were bogus, we're
1679: * also dead...
1680: */
1681: if (!cmdsOK) {
1682: DieHorribly();
1683: }
1.6 millert 1684:
1.40 espie 1685: job->cmdFILE = fopen(tfile, "w+");
1.2 deraadt 1686: if (job->cmdFILE == NULL) {
1687: Punt("Could not open %s", tfile);
1.1 deraadt 1688: }
1.40 espie 1689: (void)fcntl(FILENO(job->cmdFILE), F_SETFD, 1);
1.1 deraadt 1690: /*
1691: * Send the commands to the command file, flush all its buffers then
1692: * rewind and remove the thing.
1693: */
1.41 espie 1694: noExec = false;
1.1 deraadt 1695:
1696: /*
1697: * used to be backwards; replace when start doing multiple commands
1698: * per shell.
1699: */
1700: if (compatMake) {
1701: /*
1702: * Be compatible: If this is the first time for this node,
1703: * verify its commands are ok and open the commands list for
1704: * sequential access by later invocations of JobStart.
1705: * Once that is done, we take the next command off the list
1706: * and print it to the command file. If the command was an
1707: * ellipsis, note that there's nothing more to execute.
1708: */
1.30 espie 1709: if ((job->flags&JOB_FIRST))
1.40 espie 1710: gn->current = Lst_First(&gn->commands);
1711: else
1712: gn->current = Lst_Succ(gn->current);
1.6 millert 1713:
1.40 espie 1714: if (gn->current == NULL ||
1715: !JobPrintCommand(Lst_Datum(gn->current), job)) {
1.41 espie 1716: noExec = true;
1.40 espie 1717: gn->current = NULL;
1.30 espie 1718: }
1719: if (noExec && !(job->flags & JOB_FIRST)) {
1720: /*
1721: * If we're not going to execute anything, the job
1722: * is done and we need to close down the various
1723: * file descriptors we've opened for output, then
1724: * call JobDoOutput to catch the final characters or
1725: * send the file to the screen... Note that the i/o streams
1726: * are only open if this isn't the first job.
1727: * Note also that this could not be done in
1728: * Job_CatchChildren b/c it wasn't clear if there were
1729: * more commands to execute or not...
1730: */
1731: JobClose(job);
1.1 deraadt 1732: }
1733: } else {
1734: /*
1735: * We can do all the commands at once. hooray for sanity
1736: */
1737: numCommands = 0;
1.29 espie 1738: Lst_Find(&gn->commands, JobPrintCommand, job);
1.6 millert 1739:
1.1 deraadt 1740: /*
1741: * If we didn't print out any commands to the shell script,
1742: * there's not much point in executing the shell, is there?
1743: */
1744: if (numCommands == 0) {
1.41 espie 1745: noExec = true;
1.1 deraadt 1746: }
1747: }
1748: } else if (noExecute) {
1749: /*
1750: * Not executing anything -- just print all the commands to stdout
1751: * in one fell swoop. This will still set up job->tailCmds correctly.
1752: */
1753: if (lastNode != gn) {
1.2 deraadt 1754: MESSAGE(stdout, gn);
1.1 deraadt 1755: lastNode = gn;
1756: }
1757: job->cmdFILE = stdout;
1758: /*
1759: * Only print the commands if they're ok, but don't die if they're
1760: * not -- just let the user know they're bad and keep going. It
1761: * doesn't do any harm in this case and may do some good.
1762: */
1.40 espie 1763: if (cmdsOK) {
1.29 espie 1764: Lst_Find(&gn->commands, JobPrintCommand, job);
1.40 espie 1765: }
1.1 deraadt 1766: /*
1767: * Don't execute the shell, thank you.
1768: */
1.41 espie 1769: noExec = true;
1.1 deraadt 1770: } else {
1771: /*
1772: * Just touch the target and note that no shell should be executed.
1773: * Set cmdFILE to stdout to make life easier. Check the commands, too,
1774: * but don't die if they're no good -- it does no harm to keep working
1775: * up the graph.
1776: */
1777: job->cmdFILE = stdout;
1.40 espie 1778: Job_Touch(gn, job->flags&JOB_SILENT);
1.41 espie 1779: noExec = true;
1.1 deraadt 1780: }
1781:
1782: /*
1.6 millert 1783: * If we're not supposed to execute a shell, don't.
1.1 deraadt 1784: */
1785: if (noExec) {
1786: /*
1787: * Unlink and close the command file if we opened one
1788: */
1789: if (job->cmdFILE != stdout) {
1.40 espie 1790: (void)eunlink(tfile);
1.2 deraadt 1791: if (job->cmdFILE != NULL)
1.40 espie 1792: (void)fclose(job->cmdFILE);
1.1 deraadt 1793: } else {
1.40 espie 1794: (void)fflush(stdout);
1.1 deraadt 1795: }
1796:
1797: /*
1798: * We only want to work our way up the graph if we aren't here because
1799: * the commands for the job were no good.
1800: */
1801: if (cmdsOK) {
1802: if (aborting == 0) {
1.40 espie 1803: Lst_ForEachFrom(job->tailCmds, JobSaveCommand, job->node);
1.1 deraadt 1804: Make_Update(job->node);
1805: }
1.28 espie 1806: free(job);
1807: return JOB_FINISHED;
1.1 deraadt 1808: } else {
1.28 espie 1809: free(job);
1810: return JOB_ERROR;
1.1 deraadt 1811: }
1812: } else {
1.40 espie 1813: (void)fflush(job->cmdFILE);
1814: (void)eunlink(tfile);
1.1 deraadt 1815: }
1816:
1817: /*
1818: * Set up the control arguments to the shell. This is based on the flags
1819: * set earlier for this job.
1820: */
1821: JobMakeArgv(job, argv);
1822:
1823: /*
1824: * If we're using pipes to catch output, create the pipe by which we'll
1825: * get the shell's output. If we're using files, print out that we're
1.7 millert 1826: * starting a job and then set up its temporary-file name.
1.1 deraadt 1827: */
1.2 deraadt 1828: if (!compatMake || (job->flags & JOB_FIRST)) {
1.1 deraadt 1829: if (usePipes) {
1830: int fd[2];
1.2 deraadt 1831: if (pipe(fd) == -1)
1832: Punt("Cannot create pipe: %s", strerror(errno));
1.1 deraadt 1833: job->inPipe = fd[0];
1834: job->outPipe = fd[1];
1.40 espie 1835: (void)fcntl(job->inPipe, F_SETFD, 1);
1836: (void)fcntl(job->outPipe, F_SETFD, 1);
1.1 deraadt 1837: } else {
1.40 espie 1838: (void)fprintf(stdout, "Remaking `%s'\n", gn->name);
1839: (void)fflush(stdout);
1840: (void)strcpy(job->outFile, TMPPAT);
1.7 millert 1841: if ((job->outFd = mkstemp(job->outFile)) == -1)
1842: Punt("Cannot create temp file: %s", strerror(errno));
1.40 espie 1843: (void)fcntl(job->outFd, F_SETFD, 1);
1.1 deraadt 1844: }
1845: }
1846:
1.2 deraadt 1847: #ifdef REMOTE
1848: if (!(gn->type & OP_NOEXPORT) && !(runLocalFirst && nLocal < maxLocal)) {
1849: #ifdef RMT_NO_EXEC
1850: local = !Rmt_Export(shellPath, argv, job);
1851: #else
1852: local = !Rmt_Begin(shellPath, argv, job->node);
1853: #endif /* RMT_NO_EXEC */
1854: if (!local) {
1855: job->flags |= JOB_REMOTE;
1856: }
1857: } else
1858: #endif
1.41 espie 1859: local = true;
1.1 deraadt 1860:
1.40 espie 1861: if (local && nLocal >= maxLocal &&
1.2 deraadt 1862: !(job->flags & JOB_SPECIAL) &&
1863: #ifdef REMOTE
1.40 espie 1864: (!(gn->type & OP_NOEXPORT) || maxLocal != 0)
1.2 deraadt 1865: #else
1.40 espie 1866: maxLocal != 0
1.2 deraadt 1867: #endif
1.40 espie 1868: )
1.1 deraadt 1869: {
1870: /*
1871: * The job can only be run locally, but we've hit the limit of
1872: * local concurrency, so put the job on hold until some other job
1.6 millert 1873: * finishes. Note that the special jobs (.BEGIN, .INTERRUPT and .END)
1.1 deraadt 1874: * may be run locally even when the local limit has been reached
1.6 millert 1875: * (e.g. when maxLocal == 0), though they will be exported if at
1.2 deraadt 1876: * all possible. In addition, any target marked with .NOEXPORT will
1877: * be run locally if maxLocal is 0.
1.1 deraadt 1878: */
1.41 espie 1879: jobFull = true;
1.6 millert 1880:
1.1 deraadt 1881: if (DEBUG(JOB)) {
1.40 espie 1882: (void)fprintf(stdout, "Can only run job locally.\n");
1883: (void)fflush(stdout);
1.1 deraadt 1884: }
1885: job->flags |= JOB_RESTART;
1.29 espie 1886: Lst_AtEnd(&stoppedJobs, job);
1.1 deraadt 1887: } else {
1.40 espie 1888: if (nLocal >= maxLocal && local) {
1.1 deraadt 1889: /*
1.6 millert 1890: * If we're running this job locally as a special case (see above),
1.1 deraadt 1891: * at least say the table is full.
1892: */
1.41 espie 1893: jobFull = true;
1.1 deraadt 1894: if (DEBUG(JOB)) {
1.40 espie 1895: (void)fprintf(stdout, "Local job queue is full.\n");
1896: (void)fflush(stdout);
1.1 deraadt 1897: }
1898: }
1899: JobExec(job, argv);
1900: }
1.40 espie 1901: return JOB_RUNNING;
1.1 deraadt 1902: }
1903:
1.6 millert 1904: static char *
1.2 deraadt 1905: JobOutput(job, cp, endp, msg)
1.40 espie 1906: Job *job;
1907: char *cp, *endp;
1.2 deraadt 1908: int msg;
1909: {
1.40 espie 1910: char *ecp;
1.2 deraadt 1911:
1912: if (commandShell->noPrint) {
1.14 espie 1913: ecp = strstr(cp, commandShell->noPrint);
1.2 deraadt 1914: while (ecp != NULL) {
1915: if (cp != ecp) {
1916: *ecp = '\0';
1917: if (msg && job->node != lastNode) {
1918: MESSAGE(stdout, job->node);
1919: lastNode = job->node;
1920: }
1921: /*
1922: * The only way there wouldn't be a newline after
1923: * this line is if it were the last in the buffer.
1924: * however, since the non-printable comes after it,
1925: * there must be a newline, so we don't print one.
1926: */
1.40 espie 1927: (void)fprintf(stdout, "%s", cp);
1928: (void)fflush(stdout);
1.2 deraadt 1929: }
1930: cp = ecp + commandShell->noPLen;
1931: if (cp != endp) {
1932: /*
1933: * Still more to print, look again after skipping
1934: * the whitespace following the non-printable
1935: * command....
1936: */
1937: cp++;
1938: while (*cp == ' ' || *cp == '\t' || *cp == '\n') {
1939: cp++;
1940: }
1.14 espie 1941: ecp = strstr(cp, commandShell->noPrint);
1.2 deraadt 1942: } else {
1943: return cp;
1944: }
1945: }
1946: }
1947: return cp;
1948: }
1949:
1.1 deraadt 1950: /*-
1951: *-----------------------------------------------------------------------
1.40 espie 1952: * JobDoOutput --
1.1 deraadt 1953: * This function is called at different times depending on
1954: * whether the user has specified that output is to be collected
1955: * via pipes or temporary files. In the former case, we are called
1956: * whenever there is something to read on the pipe. We collect more
1957: * output from the given job and store it in the job's outBuf. If
1958: * this makes up a line, we print it tagged by the job's identifier,
1959: * as necessary.
1960: * If output has been collected in a temporary file, we open the
1961: * file and read it line by line, transfering it to our own
1962: * output channel until the file is empty. At which point we
1963: * remove the temporary file.
1964: * In both cases, however, we keep our figurative eye out for the
1965: * 'noPrint' line for the shell from which the output came. If
1966: * we recognize a line, we don't print it. If the command is not
1.6 millert 1967: * alone on the line (the character after it is not \0 or \n), we
1.1 deraadt 1968: * do print whatever follows it.
1969: *
1970: * Side Effects:
1971: * curPos may be shifted as may the contents of outBuf.
1972: *-----------------------------------------------------------------------
1973: */
1.2 deraadt 1974: STATIC void
1975: JobDoOutput(job, finish)
1.40 espie 1976: Job *job; /* the job whose output needs printing */
1.41 espie 1977: bool finish; /* true if this is the last time we'll be
1.1 deraadt 1978: * called for this job */
1979: {
1.41 espie 1980: bool gotNL = false; /* true if got a newline */
1981: bool fbuf; /* true if our buffer filled up */
1.40 espie 1982: int nr; /* number of bytes read */
1983: int i; /* auxiliary index into outBuf */
1984: int max; /* limit for i (end of current data) */
1985: int nRead; /* (Temporary) number of bytes read */
1.1 deraadt 1986:
1.40 espie 1987: FILE *oFILE; /* Stream pointer to shell's output file */
1988: char inLine[132];
1.1 deraadt 1989:
1.6 millert 1990:
1.1 deraadt 1991: if (usePipes) {
1992: /*
1993: * Read as many bytes as will fit in the buffer.
1994: */
1995: end_loop:
1.41 espie 1996: gotNL = false;
1997: fbuf = false;
1.6 millert 1998:
1.2 deraadt 1999: nRead = read(job->inPipe, &job->outBuf[job->curPos],
1.1 deraadt 2000: JOB_BUFSIZE - job->curPos);
1.40 espie 2001: if (nRead == -1) {
1.1 deraadt 2002: if (DEBUG(JOB)) {
2003: perror("JobDoOutput(piperead)");
2004: }
2005: nr = 0;
2006: } else {
2007: nr = nRead;
2008: }
2009:
2010: /*
1.6 millert 2011: * If we hit the end-of-file (the job is dead), we must flush its
1.1 deraadt 2012: * remaining output, so pretend we read a newline if there's any
2013: * output remaining in the buffer.
2014: * Also clear the 'finish' flag so we stop looping.
2015: */
1.40 espie 2016: if (nr == 0 && job->curPos != 0) {
1.1 deraadt 2017: job->outBuf[job->curPos] = '\n';
2018: nr = 1;
1.41 espie 2019: finish = false;
1.1 deraadt 2020: } else if (nr == 0) {
1.41 espie 2021: finish = false;
1.1 deraadt 2022: }
1.6 millert 2023:
1.1 deraadt 2024: /*
2025: * Look for the last newline in the bytes we just got. If there is
2026: * one, break out of the loop with 'i' as its index and gotNL set
1.41 espie 2027: * true.
1.1 deraadt 2028: */
2029: max = job->curPos + nr;
2030: for (i = job->curPos + nr - 1; i >= job->curPos; i--) {
2031: if (job->outBuf[i] == '\n') {
1.41 espie 2032: gotNL = true;
1.1 deraadt 2033: break;
2034: } else if (job->outBuf[i] == '\0') {
2035: /*
2036: * Why?
2037: */
2038: job->outBuf[i] = ' ';
2039: }
2040: }
1.6 millert 2041:
1.1 deraadt 2042: if (!gotNL) {
2043: job->curPos += nr;
2044: if (job->curPos == JOB_BUFSIZE) {
2045: /*
2046: * If we've run out of buffer space, we have no choice
1.6 millert 2047: * but to print the stuff. sigh.
1.1 deraadt 2048: */
1.41 espie 2049: fbuf = true;
1.1 deraadt 2050: i = job->curPos;
2051: }
2052: }
1.2 deraadt 2053: if (gotNL || fbuf) {
1.1 deraadt 2054: /*
2055: * Need to send the output to the screen. Null terminate it
2056: * first, overwriting the newline character if there was one.
1.6 millert 2057: * So long as the line isn't one we should filter (according
1.1 deraadt 2058: * to the shell description), we print the line, preceeded
2059: * by a target banner if this target isn't the same as the
2060: * one for which we last printed something.
2061: * The rest of the data in the buffer are then shifted down
1.6 millert 2062: * to the start of the buffer and curPos is set accordingly.
1.1 deraadt 2063: */
2064: job->outBuf[i] = '\0';
2065: if (i >= job->curPos) {
1.2 deraadt 2066: char *cp;
1.6 millert 2067:
1.41 espie 2068: cp = JobOutput(job, job->outBuf, &job->outBuf[i], false);
1.1 deraadt 2069:
2070: /*
2071: * There's still more in that thar buffer. This time, though,
2072: * we know there's no newline at the end, so we add one of
2073: * our own free will.
2074: */
2075: if (*cp != '\0') {
2076: if (job->node != lastNode) {
1.2 deraadt 2077: MESSAGE(stdout, job->node);
1.1 deraadt 2078: lastNode = job->node;
2079: }
1.40 espie 2080: (void)fprintf(stdout, "%s%s", cp, gotNL ? "\n" : "");
2081: (void)fflush(stdout);
1.1 deraadt 2082: }
2083: }
2084: if (i < max - 1) {
2085: /* shift the remaining characters down */
1.40 espie 2086: (void)memcpy(job->outBuf, &job->outBuf[i + 1], max - (i + 1));
1.6 millert 2087: job->curPos = max - (i + 1);
2088:
1.1 deraadt 2089: } else {
2090: /*
2091: * We have written everything out, so we just start over
2092: * from the start of the buffer. No copying. No nothing.
2093: */
2094: job->curPos = 0;
2095: }
2096: }
2097: if (finish) {
2098: /*
2099: * If the finish flag is true, we must loop until we hit
1.6 millert 2100: * end-of-file on the pipe. This is guaranteed to happen
2101: * eventually since the other end of the pipe is now closed
2102: * (we closed it explicitly and the child has exited). When
1.41 espie 2103: * we do get an EOF, finish will be set false and we'll fall
1.6 millert 2104: * through and out.
1.1 deraadt 2105: */
2106: goto end_loop;
2107: }
2108: } else {
2109: /*
2110: * We've been called to retrieve the output of the job from the
2111: * temporary file where it's been squirreled away. This consists of
2112: * opening the file, reading the output line by line, being sure not
2113: * to print the noPrint line for the shell we used, then close and
2114: * remove the temporary file. Very simple.
2115: *
2116: * Change to read in blocks and do FindSubString type things as for
2117: * pipes? That would allow for "@echo -n..."
2118: */
1.2 deraadt 2119: oFILE = fopen(job->outFile, "r");
2120: if (oFILE != NULL) {
1.40 espie 2121: (void)fprintf(stdout, "Results of making %s:\n", job->node->name);
2122: (void)fflush(stdout);
1.2 deraadt 2123: while (fgets(inLine, sizeof(inLine), oFILE) != NULL) {
1.40 espie 2124: char *cp, *endp, *oendp;
1.1 deraadt 2125:
2126: cp = inLine;
1.2 deraadt 2127: oendp = endp = inLine + strlen(inLine);
1.1 deraadt 2128: if (endp[-1] == '\n') {
2129: *--endp = '\0';
2130: }
1.41 espie 2131: cp = JobOutput(job, inLine, endp, false);
1.1 deraadt 2132:
2133: /*
2134: * There's still more in that thar buffer. This time, though,
2135: * we know there's no newline at the end, so we add one of
2136: * our own free will.
2137: */
1.40 espie 2138: (void)fprintf(stdout, "%s", cp);
2139: (void)fflush(stdout);
1.2 deraadt 2140: if (endp != oendp) {
1.40 espie 2141: (void)fprintf(stdout, "\n");
2142: (void)fflush(stdout);
1.1 deraadt 2143: }
2144: }
1.40 espie 2145: (void)fclose(oFILE);
2146: (void)eunlink(job->outFile);
1.1 deraadt 2147: }
2148: }
2149: }
2150:
2151: /*-
2152: *-----------------------------------------------------------------------
2153: * Job_CatchChildren --
2154: * Handle the exit of a child. Called from Make_Make.
2155: *
2156: * Side Effects:
2157: * The job descriptor is removed from the list of children.
2158: *
2159: * Notes:
2160: * We do waits, blocking or not, according to the wisdom of our
2161: * caller, until there are no more children to report. For each
2162: * job, call JobFinish to finish things off. This will take care of
2163: * putting jobs on the stoppedJobs queue.
2164: *-----------------------------------------------------------------------
2165: */
2166: void
1.2 deraadt 2167: Job_CatchChildren(block)
1.41 espie 2168: bool block; /* true if should block on the wait. */
1.1 deraadt 2169: {
1.40 espie 2170: int pid; /* pid of dead child */
2171: Job *job; /* job descriptor for dead child */
2172: LstNode jnode; /* list element for finding job */
2173: int status; /* Exit/termination status */
1.1 deraadt 2174:
2175: /*
2176: * Don't even bother if we know there's no one around.
2177: */
2178: if (nLocal == 0) {
2179: return;
2180: }
1.6 millert 2181:
1.2 deraadt 2182: while ((pid = waitpid((pid_t) -1, &status,
2183: (block?0:WNOHANG)|WUNTRACED)) > 0)
1.1 deraadt 2184: {
1.2 deraadt 2185: if (DEBUG(JOB)) {
1.40 espie 2186: (void)fprintf(stdout, "Process %d exited or stopped.\n", pid);
2187: (void)fflush(stdout);
1.2 deraadt 2188: }
1.6 millert 2189:
1.1 deraadt 2190:
1.29 espie 2191: jnode = Lst_Find(&jobs, JobCmpPid, &pid);
1.1 deraadt 2192:
1.18 espie 2193: if (jnode == NULL) {
1.2 deraadt 2194: if (WIFSIGNALED(status) && (WTERMSIG(status) == SIGCONT)) {
1.29 espie 2195: jnode = Lst_Find(&stoppedJobs, JobCmpPid, &pid);
1.18 espie 2196: if (jnode == NULL) {
1.6 millert 2197: Error("Resumed child (%d) not in table", pid);
1.1 deraadt 2198: continue;
2199: }
2200: job = (Job *)Lst_Datum(jnode);
1.29 espie 2201: Lst_Remove(&stoppedJobs, jnode);
1.1 deraadt 2202: } else {
1.6 millert 2203: Error("Child (%d) not in table?", pid);
1.1 deraadt 2204: continue;
2205: }
2206: } else {
1.30 espie 2207: job = (Job *)Lst_Datum(jnode);
1.29 espie 2208: Lst_Remove(&jobs, jnode);
1.1 deraadt 2209: nJobs -= 1;
2210: if (jobFull && DEBUG(JOB)) {
1.40 espie 2211: (void)fprintf(stdout, "Job queue is no longer full.\n");
2212: (void)fflush(stdout);
1.1 deraadt 2213: }
1.41 espie 2214: jobFull = false;
1.2 deraadt 2215: #ifdef REMOTE
2216: if (!(job->flags & JOB_REMOTE)) {
2217: if (DEBUG(JOB)) {
1.40 espie 2218: (void)fprintf(stdout,
1.2 deraadt 2219: "Job queue has one fewer local process.\n");
1.40 espie 2220: (void)fflush(stdout);
1.2 deraadt 2221: }
2222: nLocal -= 1;
2223: }
2224: #else
1.1 deraadt 2225: nLocal -= 1;
1.2 deraadt 2226: #endif
1.1 deraadt 2227: }
2228:
1.2 deraadt 2229: JobFinish(job, &status);
1.1 deraadt 2230: }
2231: }
2232:
2233: /*-
2234: *-----------------------------------------------------------------------
2235: * Job_CatchOutput --
2236: * Catch the output from our children, if we're using
2237: * pipes do so. Otherwise just block time until we get a
1.6 millert 2238: * signal (most likely a SIGCHLD) since there's no point in
1.1 deraadt 2239: * just spinning when there's nothing to do and the reaping
1.6 millert 2240: * of a child can wait for a while.
1.1 deraadt 2241: *
2242: * Side Effects:
2243: * Output is read from pipes if we're piping.
2244: * -----------------------------------------------------------------------
2245: */
2246: void
1.2 deraadt 2247: Job_CatchOutput()
1.1 deraadt 2248: {
1.40 espie 2249: int nfds;
1.1 deraadt 2250: struct timeval timeout;
1.40 espie 2251: LstNode ln;
2252: Job *job;
1.1 deraadt 2253: #ifdef RMT_WILL_WATCH
1.40 espie 2254: int pnJobs; /* Previous nJobs */
1.1 deraadt 2255: #endif
2256:
1.40 espie 2257: (void)fflush(stdout);
1.1 deraadt 2258: #ifdef RMT_WILL_WATCH
2259: pnJobs = nJobs;
2260:
2261: /*
2262: * It is possible for us to be called with nJobs equal to 0. This happens
2263: * if all the jobs finish and a job that is stopped cannot be run
2264: * locally (eg if maxLocal is 0) and cannot be exported. The job will
2265: * be placed back on the stoppedJobs queue, Job_Empty() will return false,
2266: * Make_Run will call us again when there's nothing for which to wait.
2267: * nJobs never changes, so we loop forever. Hence the check. It could
2268: * be argued that we should sleep for a bit so as not to swamp the
2269: * exportation system with requests. Perhaps we should.
2270: *
2271: * NOTE: IT IS THE RESPONSIBILITY OF Rmt_Wait TO CALL Job_CatchChildren
2272: * IN A TIMELY FASHION TO CATCH ANY LOCALLY RUNNING JOBS THAT EXIT.
2273: * It may use the variable nLocal to determine if it needs to call
1.6 millert 2274: * Job_CatchChildren (if nLocal is 0, there's nothing for which to
1.1 deraadt 2275: * wait...)
2276: */
2277: while (nJobs != 0 && pnJobs == nJobs) {
2278: Rmt_Wait();
2279: }
2280: #else
2281: if (usePipes) {
1.8 deraadt 2282: int count = howmany(outputsn+1, NFDBITS) * sizeof(fd_mask);
2283: fd_set *readfdsp = malloc(count);
2284: if (readfdsp == NULL)
2285: return;
2286:
2287: memcpy(readfdsp, outputsp, count);
1.1 deraadt 2288: timeout.tv_sec = SEL_SEC;
2289: timeout.tv_usec = SEL_USEC;
2290:
1.8 deraadt 2291: if ((nfds = select(outputsn+1, readfdsp, (fd_set *) 0,
2292: (fd_set *) 0, &timeout)) <= 0) {
2293: free(readfdsp);
1.1 deraadt 2294: return;
1.8 deraadt 2295: } else {
1.40 espie 2296: for (ln = Lst_First(&jobs); nfds && ln != NULL; ln = Lst_Adv(ln)) {
1.30 espie 2297: job = (Job *)Lst_Datum(ln);
1.8 deraadt 2298: if (FD_ISSET(job->inPipe, readfdsp)) {
1.41 espie 2299: JobDoOutput(job, false);
1.1 deraadt 2300: nfds -= 1;
2301: }
2302: }
2303: }
1.8 deraadt 2304: free(readfdsp);
1.1 deraadt 2305: }
2306: #endif /* RMT_WILL_WATCH */
2307: }
2308:
2309: /*-
2310: *-----------------------------------------------------------------------
2311: * Job_Make --
2312: * Start the creation of a target. Basically a front-end for
2313: * JobStart used by the Make module.
2314: *
2315: * Side Effects:
2316: * Another job is started.
2317: *-----------------------------------------------------------------------
2318: */
2319: void
1.2 deraadt 2320: Job_Make(gn)
1.1 deraadt 2321: GNode *gn;
2322: {
1.40 espie 2323: (void)JobStart(gn, 0, NULL);
1.1 deraadt 2324: }
2325:
2326: /*-
2327: *-----------------------------------------------------------------------
2328: * Job_Init --
2329: * Initialize the process module
2330: *
2331: * Side Effects:
2332: * lists and counters are initialized
2333: *-----------------------------------------------------------------------
2334: */
2335: void
1.2 deraadt 2336: Job_Init(maxproc, maxlocal)
1.40 espie 2337: int maxproc; /* the greatest number of jobs which may be
1.1 deraadt 2338: * running at one time */
1.40 espie 2339: int maxlocal; /* the greatest number of local jobs which may
1.1 deraadt 2340: * be running at once. */
2341: {
1.40 espie 2342: GNode *begin; /* node for commands to do at the very start */
2343: int tfd;
2344:
2345: (void)strcpy(tfile, TMPPAT);
2346: if ((tfd = mkstemp(tfile)) == -1)
2347: Punt("Cannot create temp file: %s", strerror(errno));
2348: else
2349: (void)close(tfd);
1.1 deraadt 2350:
1.45 ! deraadt 2351: Lst_Init(&jobs);
! 2352: Lst_Init(&stoppedJobs);
1.40 espie 2353: maxJobs = maxproc;
2354: maxLocal = maxlocal;
2355: nJobs = 0;
2356: nLocal = 0;
1.41 espie 2357: jobFull = false;
1.1 deraadt 2358:
1.40 espie 2359: aborting = 0;
2360: errors = 0;
1.1 deraadt 2361:
1.18 espie 2362: lastNode = NULL;
1.1 deraadt 2363:
1.2 deraadt 2364: if (maxJobs == 1
2365: #ifdef REMOTE
2366: || noMessages
2367: #endif
2368: ) {
1.1 deraadt 2369: /*
2370: * If only one job can run at a time, there's no need for a banner,
2371: * no is there?
2372: */
2373: targFmt = "";
2374: } else {
2375: targFmt = TARG_FMT;
2376: }
1.6 millert 2377:
1.2 deraadt 2378: if (shellPath == NULL) {
1.1 deraadt 2379: /*
2380: * The user didn't specify a shell to use, so we are using the
2381: * default one... Both the absolute path and the last component
2382: * must be set. The last component is taken from the 'name' field
2383: * of the default shell description pointed-to by commandShell.
2384: * All default shells are located in _PATH_DEFSHELLDIR.
2385: */
2386: shellName = commandShell->name;
1.41 espie 2387: shellPath = Str_concat(_PATH_DEFSHELLDIR, shellName, '/');
1.1 deraadt 2388: }
2389:
1.2 deraadt 2390: if (commandShell->exit == NULL) {
1.1 deraadt 2391: commandShell->exit = "";
2392: }
1.2 deraadt 2393: if (commandShell->echo == NULL) {
1.1 deraadt 2394: commandShell->echo = "";
2395: }
2396:
2397: /*
2398: * Catch the four signals that POSIX specifies if they aren't ignored.
2399: * JobPassSig will take care of calling JobInterrupt if appropriate.
2400: */
1.2 deraadt 2401: if (signal(SIGINT, SIG_IGN) != SIG_IGN) {
1.40 espie 2402: (void)signal(SIGINT, JobPassSig);
1.1 deraadt 2403: }
1.2 deraadt 2404: if (signal(SIGHUP, SIG_IGN) != SIG_IGN) {
1.40 espie 2405: (void)signal(SIGHUP, JobPassSig);
1.1 deraadt 2406: }
1.2 deraadt 2407: if (signal(SIGQUIT, SIG_IGN) != SIG_IGN) {
1.40 espie 2408: (void)signal(SIGQUIT, JobPassSig);
1.1 deraadt 2409: }
1.2 deraadt 2410: if (signal(SIGTERM, SIG_IGN) != SIG_IGN) {
1.40 espie 2411: (void)signal(SIGTERM, JobPassSig);
1.1 deraadt 2412: }
2413: /*
2414: * There are additional signals that need to be caught and passed if
2415: * either the export system wants to be told directly of signals or if
1.6 millert 2416: * we're giving each job its own process group (since then it won't get
1.1 deraadt 2417: * signals from the terminal driver as we own the terminal)
2418: */
2419: #if defined(RMT_WANTS_SIGNALS) || defined(USE_PGRP)
1.2 deraadt 2420: if (signal(SIGTSTP, SIG_IGN) != SIG_IGN) {
1.40 espie 2421: (void)signal(SIGTSTP, JobPassSig);
1.1 deraadt 2422: }
1.2 deraadt 2423: if (signal(SIGTTOU, SIG_IGN) != SIG_IGN) {
1.40 espie 2424: (void)signal(SIGTTOU, JobPassSig);
1.1 deraadt 2425: }
1.2 deraadt 2426: if (signal(SIGTTIN, SIG_IGN) != SIG_IGN) {
1.40 espie 2427: (void)signal(SIGTTIN, JobPassSig);
1.1 deraadt 2428: }
1.2 deraadt 2429: if (signal(SIGWINCH, SIG_IGN) != SIG_IGN) {
1.40 espie 2430: (void)signal(SIGWINCH, JobPassSig);
1.1 deraadt 2431: }
2432: #endif
1.6 millert 2433:
1.41 espie 2434: begin = Targ_FindNode(".BEGIN", TARG_NOCREATE);
1.1 deraadt 2435:
1.18 espie 2436: if (begin != NULL) {
1.2 deraadt 2437: JobStart(begin, JOB_SPECIAL, (Job *)0);
1.1 deraadt 2438: while (nJobs) {
2439: Job_CatchOutput();
2440: #ifndef RMT_WILL_WATCH
1.2 deraadt 2441: Job_CatchChildren(!usePipes);
1.1 deraadt 2442: #endif /* RMT_WILL_WATCH */
2443: }
2444: }
1.41 espie 2445: postCommands = Targ_FindNode(".END", TARG_CREATE);
1.1 deraadt 2446: }
2447:
2448: /*-
2449: *-----------------------------------------------------------------------
2450: * Job_Full --
2451: * See if the job table is full. It is considered full if it is OR
2452: * if we are in the process of aborting OR if we have
2453: * reached/exceeded our local quota. This prevents any more jobs
2454: * from starting up.
2455: *
2456: * Results:
1.41 espie 2457: * true if the job table is full, false otherwise
1.1 deraadt 2458: *-----------------------------------------------------------------------
2459: */
1.41 espie 2460: bool
1.2 deraadt 2461: Job_Full()
1.1 deraadt 2462: {
1.40 espie 2463: return aborting || jobFull;
1.1 deraadt 2464: }
2465:
2466: /*-
2467: *-----------------------------------------------------------------------
2468: * Job_Empty --
1.40 espie 2469: * See if the job table is empty. Because the local concurrency may
1.1 deraadt 2470: * be set to 0, it is possible for the job table to become empty,
2471: * while the list of stoppedJobs remains non-empty. In such a case,
2472: * we want to restart as many jobs as we can.
2473: *
2474: * Results:
1.41 espie 2475: * true if it is. false if it ain't.
1.1 deraadt 2476: * -----------------------------------------------------------------------
2477: */
1.41 espie 2478: bool
1.2 deraadt 2479: Job_Empty()
1.1 deraadt 2480: {
2481: if (nJobs == 0) {
1.29 espie 2482: if (!Lst_IsEmpty(&stoppedJobs) && !aborting) {
1.1 deraadt 2483: /*
2484: * The job table is obviously not full if it has no jobs in
2485: * it...Try and restart the stopped jobs.
2486: */
1.41 espie 2487: jobFull = false;
1.2 deraadt 2488: JobRestartJobs();
1.41 espie 2489: return false;
1.1 deraadt 2490: } else {
1.41 espie 2491: return true;
1.1 deraadt 2492: }
2493: } else {
1.41 espie 2494: return false;
1.1 deraadt 2495: }
2496: }
2497:
2498: /*-
2499: *-----------------------------------------------------------------------
2500: * JobMatchShell --
2501: * Find a matching shell in 'shells' given its final component.
2502: *
2503: * Results:
2504: * A pointer to the Shell structure.
2505: *-----------------------------------------------------------------------
2506: */
2507: static Shell *
1.2 deraadt 2508: JobMatchShell(name)
1.1 deraadt 2509: char *name; /* Final component of shell path */
2510: {
1.40 espie 2511: Shell *sh; /* Pointer into shells table */
2512: Shell *match; /* Longest-matching shell */
2513: char *cp1,
1.1 deraadt 2514: *cp2;
2515: char *eoname;
2516:
1.2 deraadt 2517: eoname = name + strlen(name);
1.1 deraadt 2518:
1.2 deraadt 2519: match = NULL;
1.1 deraadt 2520:
2521: for (sh = shells; sh->name != NULL; sh++) {
1.2 deraadt 2522: for (cp1 = eoname - strlen(sh->name), cp2 = sh->name;
1.1 deraadt 2523: *cp1 != '\0' && *cp1 == *cp2;
2524: cp1++, cp2++) {
2525: continue;
2526: }
2527: if (*cp1 != *cp2) {
2528: continue;
1.2 deraadt 2529: } else if (match == NULL || strlen(match->name) < strlen(sh->name)) {
2530: match = sh;
1.1 deraadt 2531: }
2532: }
1.40 espie 2533: return match == NULL ? sh : match;
1.1 deraadt 2534: }
2535:
2536: /*-
2537: *-----------------------------------------------------------------------
2538: * Job_ParseShell --
2539: * Parse a shell specification and set up commandShell, shellPath
2540: * and shellName appropriately.
2541: *
2542: * Results:
1.41 espie 2543: * false if the specification was incorrect.
1.1 deraadt 2544: *
2545: * Side Effects:
2546: * commandShell points to a Shell structure (either predefined or
2547: * created from the shell spec), shellPath is the full path of the
2548: * shell described by commandShell, while shellName is just the
2549: * final component of shellPath.
2550: *
2551: * Notes:
2552: * A shell specification consists of a .SHELL target, with dependency
2553: * operator, followed by a series of blank-separated words. Double
2554: * quotes can be used to use blanks in words. A backslash escapes
2555: * anything (most notably a double-quote and a space) and
2556: * provides the functionality it does in C. Each word consists of
2557: * keyword and value separated by an equal sign. There should be no
2558: * unnecessary spaces in the word. The keywords are as follows:
1.40 espie 2559: * name Name of shell.
2560: * path Location of shell. Overrides "name" if given
2561: * quiet Command to turn off echoing.
2562: * echo Command to turn echoing on
1.1 deraadt 2563: * filter Result of turning off echoing that shouldn't be
1.40 espie 2564: * printed.
1.1 deraadt 2565: * echoFlag Flag to turn echoing on at the start
2566: * errFlag Flag to turn error checking on at the start
2567: * hasErrCtl True if shell has error checking control
1.40 espie 2568: * check Command to turn on error checking if hasErrCtl
1.41 espie 2569: * is true or template of command to echo a command
1.40 espie 2570: * for which error checking is off if hasErrCtl is
1.41 espie 2571: * false.
1.1 deraadt 2572: * ignore Command to turn off error checking if hasErrCtl
1.41 espie 2573: * is true or template of command to execute a
1.40 espie 2574: * command so as to ignore any errors it returns if
1.41 espie 2575: * hasErrCtl is false.
1.1 deraadt 2576: *-----------------------------------------------------------------------
2577: */
1.41 espie 2578: bool
1.2 deraadt 2579: Job_ParseShell(line)
1.1 deraadt 2580: char *line; /* The shell spec */
2581: {
1.40 espie 2582: char **words;
2583: int wordCount;
2584: char **argv;
2585: int argc;
2586: char *path;
2587: Shell newShell;
1.41 espie 2588: bool fullSpec = false;
1.1 deraadt 2589:
1.2 deraadt 2590: while (isspace(*line)) {
1.1 deraadt 2591: line++;
2592: }
1.12 espie 2593:
2594: efree(shellArgv);
1.40 espie 2595:
2596: words = brk_string(line, &wordCount, &shellArgv);
1.1 deraadt 2597:
1.28 espie 2598: memset(&newShell, 0, sizeof(newShell));
1.6 millert 2599:
1.1 deraadt 2600: /*
2601: * Parse the specification by keyword
2602: */
1.12 espie 2603: for (path = NULL, argc = wordCount - 1, argv = words;
1.1 deraadt 2604: argc != 0;
2605: argc--, argv++) {
1.2 deraadt 2606: if (strncmp(*argv, "path=", 5) == 0) {
1.1 deraadt 2607: path = &argv[0][5];
1.2 deraadt 2608: } else if (strncmp(*argv, "name=", 5) == 0) {
1.1 deraadt 2609: newShell.name = &argv[0][5];
2610: } else {
1.2 deraadt 2611: if (strncmp(*argv, "quiet=", 6) == 0) {
1.1 deraadt 2612: newShell.echoOff = &argv[0][6];
1.2 deraadt 2613: } else if (strncmp(*argv, "echo=", 5) == 0) {
1.1 deraadt 2614: newShell.echoOn = &argv[0][5];
1.2 deraadt 2615: } else if (strncmp(*argv, "filter=", 7) == 0) {
1.1 deraadt 2616: newShell.noPrint = &argv[0][7];
2617: newShell.noPLen = strlen(newShell.noPrint);
1.2 deraadt 2618: } else if (strncmp(*argv, "echoFlag=", 9) == 0) {
1.1 deraadt 2619: newShell.echo = &argv[0][9];
1.2 deraadt 2620: } else if (strncmp(*argv, "errFlag=", 8) == 0) {
1.1 deraadt 2621: newShell.exit = &argv[0][8];
1.2 deraadt 2622: } else if (strncmp(*argv, "hasErrCtl=", 10) == 0) {
1.1 deraadt 2623: char c = argv[0][10];
1.40 espie 2624: newShell.hasErrCtl = !(c != 'Y' && c != 'y' &&
2625: c != 'T' && c != 't');
1.2 deraadt 2626: } else if (strncmp(*argv, "check=", 6) == 0) {
1.1 deraadt 2627: newShell.errCheck = &argv[0][6];
1.2 deraadt 2628: } else if (strncmp(*argv, "ignore=", 7) == 0) {
1.1 deraadt 2629: newShell.ignErr = &argv[0][7];
2630: } else {
1.2 deraadt 2631: Parse_Error(PARSE_FATAL, "Unknown keyword \"%s\"",
1.1 deraadt 2632: *argv);
1.12 espie 2633: free(words);
1.41 espie 2634: return false;
1.1 deraadt 2635: }
1.41 espie 2636: fullSpec = true;
1.1 deraadt 2637: }
2638: }
2639:
1.2 deraadt 2640: if (path == NULL) {
1.1 deraadt 2641: /*
2642: * If no path was given, the user wants one of the pre-defined shells,
2643: * yes? So we find the one s/he wants with the help of JobMatchShell
2644: * and set things up the right way. shellPath will be set up by
2645: * Job_Init.
2646: */
1.2 deraadt 2647: if (newShell.name == NULL) {
2648: Parse_Error(PARSE_FATAL, "Neither path nor name specified");
1.41 espie 2649: return false;
1.1 deraadt 2650: } else {
1.2 deraadt 2651: commandShell = JobMatchShell(newShell.name);
1.1 deraadt 2652: shellName = newShell.name;
2653: }
2654: } else {
2655: /*
1.6 millert 2656: * The user provided a path. If s/he gave nothing else (fullSpec is
1.41 espie 2657: * false), try and find a matching shell in the ones we know of.
1.1 deraadt 2658: * Else we just take the specification at its word and copy it
2659: * to a new location. In either case, we need to record the
2660: * path the user gave for the shell.
2661: */
2662: shellPath = path;
1.2 deraadt 2663: path = strrchr(path, '/');
2664: if (path == NULL) {
1.1 deraadt 2665: path = shellPath;
2666: } else {
2667: path += 1;
2668: }
1.2 deraadt 2669: if (newShell.name != NULL) {
1.1 deraadt 2670: shellName = newShell.name;
2671: } else {
2672: shellName = path;
2673: }
2674: if (!fullSpec) {
1.2 deraadt 2675: commandShell = JobMatchShell(shellName);
1.1 deraadt 2676: } else {
1.40 espie 2677: commandShell = emalloc(sizeof(Shell));
1.1 deraadt 2678: *commandShell = newShell;
2679: }
2680: }
2681:
2682: if (commandShell->echoOn && commandShell->echoOff) {
1.41 espie 2683: commandShell->hasEchoCtl = true;
1.1 deraadt 2684: }
1.6 millert 2685:
1.1 deraadt 2686: if (!commandShell->hasErrCtl) {
1.2 deraadt 2687: if (commandShell->errCheck == NULL) {
1.1 deraadt 2688: commandShell->errCheck = "";
2689: }
1.2 deraadt 2690: if (commandShell->ignErr == NULL) {
1.1 deraadt 2691: commandShell->ignErr = "%s\n";
2692: }
2693: }
1.6 millert 2694:
1.1 deraadt 2695: /*
2696: * Do not free up the words themselves, since they might be in use by the
2697: * shell specification...
2698: */
1.2 deraadt 2699: free(words);
1.41 espie 2700: return true;
1.1 deraadt 2701: }
2702:
2703: /*-
2704: *-----------------------------------------------------------------------
2705: * JobInterrupt --
2706: * Handle the receipt of an interrupt.
2707: *
2708: * Side Effects:
2709: * All children are killed. Another job will be started if the
2710: * .INTERRUPT target was given.
2711: *-----------------------------------------------------------------------
2712: */
2713: static void
1.2 deraadt 2714: JobInterrupt(runINTERRUPT, signo)
1.40 espie 2715: int runINTERRUPT; /* Non-zero if commands for the .INTERRUPT
1.1 deraadt 2716: * target should be executed */
1.40 espie 2717: int signo; /* signal received */
1.1 deraadt 2718: {
1.40 espie 2719: LstNode ln; /* element in job table */
2720: Job *job; /* job descriptor in that element */
2721: GNode *interrupt; /* the node describing the .INTERRUPT target */
1.6 millert 2722:
1.1 deraadt 2723: aborting = ABORT_INTERRUPT;
2724:
1.40 espie 2725: for (ln = Lst_First(&jobs); ln != NULL; ln = Lst_Adv(ln)) {
1.30 espie 2726: job = (Job *)Lst_Datum(ln);
1.1 deraadt 2727:
1.2 deraadt 2728: if (!Targ_Precious(job->node)) {
1.40 espie 2729: const char *file = job->node->path == NULL ?
1.1 deraadt 2730: job->node->name :
1.40 espie 2731: job->node->path;
1.2 deraadt 2732: if (!noExecute && eunlink(file) != -1) {
2733: Error("*** %s removed", file);
1.1 deraadt 2734: }
2735: }
2736: #ifdef RMT_WANTS_SIGNALS
2737: if (job->flags & JOB_REMOTE) {
2738: /*
2739: * If job is remote, let the Rmt module do the killing.
2740: */
1.2 deraadt 2741: if (!Rmt_Signal(job, signo)) {
1.1 deraadt 2742: /*
2743: * If couldn't kill the thing, finish it out now with an
2744: * error code, since no exit report will come in likely.
2745: */
1.2 deraadt 2746: int status;
1.1 deraadt 2747:
2748: status.w_status = 0;
2749: status.w_retcode = 1;
1.2 deraadt 2750: JobFinish(job, &status);
1.1 deraadt 2751: }
2752: } else if (job->pid) {
1.2 deraadt 2753: KILL(job->pid, signo);
1.1 deraadt 2754: }
2755: #else
2756: if (job->pid) {
1.2 deraadt 2757: if (DEBUG(JOB)) {
1.40 espie 2758: (void)fprintf(stdout,
1.6 millert 2759: "JobInterrupt passing signal to child %d.\n",
1.2 deraadt 2760: job->pid);
1.40 espie 2761: (void)fflush(stdout);
1.2 deraadt 2762: }
2763: KILL(job->pid, signo);
2764: }
2765: #endif /* RMT_WANTS_SIGNALS */
2766: }
2767:
2768: #ifdef REMOTE
1.40 espie 2769: for (ln = Lst_First(&stoppedJobs); ln != NULL; ln = Lst_Adv(ln)) {
1.30 espie 2770: job = (Job *)Lst_Datum(ln);
1.2 deraadt 2771:
2772: if (job->flags & JOB_RESTART) {
2773: if (DEBUG(JOB)) {
1.40 espie 2774: (void)fprintf(stdout, "%s%s",
1.2 deraadt 2775: "JobInterrupt skipping job on stopped queue",
2776: "-- it was waiting to be restarted.\n");
1.40 espie 2777: (void)fflush(stdout);
1.2 deraadt 2778: }
2779: continue;
2780: }
2781: if (!Targ_Precious(job->node)) {
1.40 espie 2782: char *file = job->node->path == NULL ?
1.2 deraadt 2783: job->node->name :
1.40 espie 2784: job->node->path;
1.2 deraadt 2785: if (eunlink(file) == 0) {
2786: Error("*** %s removed", file);
2787: }
2788: }
2789: /*
2790: * Resume the thing so it will take the signal.
2791: */
2792: if (DEBUG(JOB)) {
1.40 espie 2793: (void)fprintf(stdout,
1.6 millert 2794: "JobInterrupt passing CONT to stopped child %d.\n",
1.2 deraadt 2795: job->pid);
1.40 espie 2796: (void)fflush(stdout);
1.2 deraadt 2797: }
2798: KILL(job->pid, SIGCONT);
2799: #ifdef RMT_WANTS_SIGNALS
2800: if (job->flags & JOB_REMOTE) {
2801: /*
2802: * If job is remote, let the Rmt module do the killing.
2803: */
2804: if (!Rmt_Signal(job, SIGINT)) {
2805: /*
2806: * If couldn't kill the thing, finish it out now with an
2807: * error code, since no exit report will come in likely.
2808: */
2809: int status;
2810: status.w_status = 0;
2811: status.w_retcode = 1;
2812: JobFinish(job, &status);
2813: }
2814: } else if (job->pid) {
2815: if (DEBUG(JOB)) {
1.40 espie 2816: (void)fprintf(stdout,
1.2 deraadt 2817: "JobInterrupt passing interrupt to stopped child %d.\n",
2818: job->pid);
1.40 espie 2819: (void)fflush(stdout);
1.2 deraadt 2820: }
1.1 deraadt 2821: KILL(job->pid, SIGINT);
2822: }
2823: #endif /* RMT_WANTS_SIGNALS */
2824: }
1.2 deraadt 2825: #endif
1.1 deraadt 2826:
2827: if (runINTERRUPT && !touchFlag) {
1.41 espie 2828: interrupt = Targ_FindNode(".INTERRUPT", TARG_NOCREATE);
1.18 espie 2829: if (interrupt != NULL) {
1.41 espie 2830: ignoreErrors = false;
1.1 deraadt 2831:
1.2 deraadt 2832: JobStart(interrupt, JOB_IGNDOTS, (Job *)0);
1.1 deraadt 2833: while (nJobs) {
2834: Job_CatchOutput();
2835: #ifndef RMT_WILL_WATCH
1.2 deraadt 2836: Job_CatchChildren(!usePipes);
1.1 deraadt 2837: #endif /* RMT_WILL_WATCH */
2838: }
2839: }
2840: }
1.40 espie 2841: (void)eunlink(tfile);
1.2 deraadt 2842: exit(signo);
1.1 deraadt 2843: }
2844:
2845: /*
2846: *-----------------------------------------------------------------------
1.12 espie 2847: * Job_Finish --
1.1 deraadt 2848: * Do final processing such as the running of the commands
1.6 millert 2849: * attached to the .END target.
1.1 deraadt 2850: *
2851: * Results:
2852: * Number of errors reported.
1.40 espie 2853: *
2854: * Side Effects:
2855: * The process' temporary file (tfile) is removed if it still
2856: * existed.
1.1 deraadt 2857: *-----------------------------------------------------------------------
2858: */
2859: int
1.12 espie 2860: Job_Finish()
1.1 deraadt 2861: {
1.29 espie 2862: if (postCommands != NULL && !Lst_IsEmpty(&postCommands->commands)) {
1.1 deraadt 2863: if (errors) {
1.2 deraadt 2864: Error("Errors reported so .END ignored");
1.1 deraadt 2865: } else {
1.2 deraadt 2866: JobStart(postCommands, JOB_SPECIAL | JOB_IGNDOTS, NULL);
1.1 deraadt 2867:
2868: while (nJobs) {
2869: Job_CatchOutput();
2870: #ifndef RMT_WILL_WATCH
1.2 deraadt 2871: Job_CatchChildren(!usePipes);
1.1 deraadt 2872: #endif /* RMT_WILL_WATCH */
2873: }
2874: }
2875: }
1.40 espie 2876: (void)eunlink(tfile);
2877: return errors;
1.1 deraadt 2878: }
2879:
1.12 espie 2880: /*-
2881: *-----------------------------------------------------------------------
2882: * Job_End --
2883: * Cleanup any memory used by the jobs module
2884: *
2885: * Side Effects:
2886: * Memory is freed
2887: *-----------------------------------------------------------------------
2888: */
1.41 espie 2889: #ifdef CLEANUP
1.12 espie 2890: void
2891: Job_End()
2892: {
2893: efree(shellArgv);
1.41 espie 2894: }
1.13 espie 2895: #endif
1.40 espie 2896:
1.1 deraadt 2897: /*-
2898: *-----------------------------------------------------------------------
2899: * Job_Wait --
2900: * Waits for all running jobs to finish and returns. Sets 'aborting'
2901: * to ABORT_WAIT to prevent other jobs from starting.
2902: *
2903: * Side Effects:
2904: * Currently running jobs finish.
2905: *
2906: *-----------------------------------------------------------------------
2907: */
2908: void
2909: Job_Wait()
2910: {
2911: aborting = ABORT_WAIT;
2912: while (nJobs != 0) {
2913: Job_CatchOutput();
2914: #ifndef RMT_WILL_WATCH
2915: Job_CatchChildren(!usePipes);
2916: #endif /* RMT_WILL_WATCH */
2917: }
2918: aborting = 0;
2919: }
2920:
2921: /*-
2922: *-----------------------------------------------------------------------
2923: * Job_AbortAll --
2924: * Abort all currently running jobs without handling output or anything.
2925: * This function is to be called only in the event of a major
2926: * error. Most definitely NOT to be called from JobInterrupt.
2927: *
2928: * Side Effects:
2929: * All children are killed, not just the firstborn
2930: *-----------------------------------------------------------------------
2931: */
2932: void
1.2 deraadt 2933: Job_AbortAll()
1.1 deraadt 2934: {
1.40 espie 2935: LstNode ln; /* element in job table */
2936: Job *job; /* the job descriptor in that element */
2937: int foo;
1.6 millert 2938:
1.1 deraadt 2939: aborting = ABORT_ERROR;
1.6 millert 2940:
1.1 deraadt 2941: if (nJobs) {
1.40 espie 2942: for (ln = Lst_First(&jobs); ln != NULL; ln = Lst_Adv(ln)) {
1.30 espie 2943: job = (Job *)Lst_Datum(ln);
1.1 deraadt 2944:
2945: /*
2946: * kill the child process with increasingly drastic signals to make
1.6 millert 2947: * darn sure it's dead.
1.1 deraadt 2948: */
2949: #ifdef RMT_WANTS_SIGNALS
2950: if (job->flags & JOB_REMOTE) {
2951: Rmt_Signal(job, SIGINT);
2952: Rmt_Signal(job, SIGKILL);
2953: } else {
2954: KILL(job->pid, SIGINT);
2955: KILL(job->pid, SIGKILL);
2956: }
2957: #else
2958: KILL(job->pid, SIGINT);
2959: KILL(job->pid, SIGKILL);
2960: #endif /* RMT_WANTS_SIGNALS */
2961: }
2962: }
1.6 millert 2963:
1.1 deraadt 2964: /*
2965: * Catch as many children as want to report in at first, then give up
2966: */
1.2 deraadt 2967: while (waitpid((pid_t) -1, &foo, WNOHANG) > 0)
1.1 deraadt 2968: continue;
1.40 espie 2969: (void)eunlink(tfile);
1.2 deraadt 2970: }
2971:
2972: #ifdef REMOTE
2973: /*-
2974: *-----------------------------------------------------------------------
2975: * JobFlagForMigration --
2976: * Handle the eviction of a child. Called from RmtStatusChange.
2977: * Flags the child as remigratable and then suspends it.
2978: *
2979: * Side Effects:
2980: * The job descriptor is flagged for remigration.
2981: *-----------------------------------------------------------------------
2982: */
2983: void
2984: JobFlagForMigration(hostID)
1.40 espie 2985: int hostID; /* ID of host we used, for matching children. */
1.2 deraadt 2986: {
1.40 espie 2987: Job *job; /* job descriptor for dead child */
2988: LstNode jnode; /* list element for finding job */
1.2 deraadt 2989:
2990: if (DEBUG(JOB)) {
1.40 espie 2991: (void)fprintf(stdout, "JobFlagForMigration(%d) called.\n", hostID);
2992: (void)fflush(stdout);
1.2 deraadt 2993: }
1.29 espie 2994: jnode = Lst_Find(&jobs, JobCmpRmtID, &hostID);
1.2 deraadt 2995:
1.18 espie 2996: if (jnode == NULL) {
1.29 espie 2997: jnode = Lst_Find(&stoppedJobs, JobCmpRmtID, &hostID);
1.18 espie 2998: if (jnode == NULL) {
1.2 deraadt 2999: if (DEBUG(JOB)) {
3000: Error("Evicting host(%d) not in table", hostID);
3001: }
3002: return;
3003: }
3004: }
1.30 espie 3005: job = (Job *)Lst_Datum(jnode);
1.2 deraadt 3006:
3007: if (DEBUG(JOB)) {
1.40 espie 3008: (void)fprintf(stdout,
1.2 deraadt 3009: "JobFlagForMigration(%d) found job '%s'.\n", hostID,
3010: job->node->name);
1.40 espie 3011: (void)fflush(stdout);
1.2 deraadt 3012: }
3013:
3014: KILL(job->pid, SIGSTOP);
3015:
3016: job->flags |= JOB_REMIGRATE;
3017: }
3018:
3019: #endif
1.40 espie 3020:
1.2 deraadt 3021: /*-
3022: *-----------------------------------------------------------------------
3023: * JobRestartJobs --
3024: * Tries to restart stopped jobs if there are slots available.
3025: * Note that this tries to restart them regardless of pending errors.
3026: * It's not good to leave stopped jobs lying around!
3027: *
3028: * Side Effects:
3029: * Resumes(and possibly migrates) jobs.
3030: *-----------------------------------------------------------------------
3031: */
3032: static void
3033: JobRestartJobs()
3034: {
1.19 espie 3035: Job *job;
3036:
1.40 espie 3037: while (!jobFull && (job = (Job *)Lst_DeQueue(&stoppedJobs)) != NULL) {
1.2 deraadt 3038: if (DEBUG(JOB)) {
1.40 espie 3039: (void)fprintf(stdout,
1.2 deraadt 3040: "Job queue is not full. Restarting a stopped job.\n");
1.40 espie 3041: (void)fflush(stdout);
1.2 deraadt 3042: }
1.19 espie 3043: JobRestart(job);
1.2 deraadt 3044: }
1.1 deraadt 3045: }
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