Annotation of src/usr.bin/make/job.c, Revision 1.47
1.40 espie 1: /* $OpenPackages$ */
1.47 ! deraadt 2: /* $OpenBSD: job.c,v 1.46 2001/11/11 12:35:02 espie 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: {
1.47 ! deraadt 378: int save_errno = errno;
1.2 deraadt 379: sigset_t nmask, omask;
1.3 niklas 380: struct sigaction act;
1.6 millert 381:
1.2 deraadt 382: if (DEBUG(JOB)) {
1.40 espie 383: (void)fprintf(stdout, "JobPassSig(%d) called.\n", signo);
384: (void)fflush(stdout);
1.2 deraadt 385: }
1.29 espie 386: Lst_ForEach(&jobs, JobCondPassSig, &signo);
1.1 deraadt 387:
388: /*
389: * Deal with proper cleanup based on the signal received. We only run
390: * the .INTERRUPT target if the signal was in fact an interrupt. The other
391: * three termination signals are more of a "get out *now*" command.
392: */
393: if (signo == SIGINT) {
1.41 espie 394: JobInterrupt(true, signo);
1.40 espie 395: } else if (signo == SIGHUP || signo == SIGTERM || signo == SIGQUIT) {
1.41 espie 396: JobInterrupt(false, signo);
1.1 deraadt 397: }
1.6 millert 398:
1.1 deraadt 399: /*
400: * Leave gracefully if SIGQUIT, rather than core dumping.
401: */
402: if (signo == SIGQUIT) {
403: Finish(0);
404: }
1.6 millert 405:
1.1 deraadt 406: /*
407: * Send ourselves the signal now we've given the message to everyone else.
408: * Note we block everything else possible while we're getting the signal.
409: * This ensures that all our jobs get continued when we wake up before
410: * we take any other signal.
411: */
1.3 niklas 412: sigemptyset(&nmask);
413: sigaddset(&nmask, signo);
414: sigprocmask(SIG_SETMASK, &nmask, &omask);
1.10 deraadt 415: memset(&act, 0, sizeof act);
1.3 niklas 416: act.sa_handler = SIG_DFL;
417: sigemptyset(&act.sa_mask);
418: act.sa_flags = 0;
419: sigaction(signo, &act, NULL);
1.2 deraadt 420:
421: if (DEBUG(JOB)) {
1.40 espie 422: (void)fprintf(stdout,
1.2 deraadt 423: "JobPassSig passing signal to self, mask = %x.\n",
424: ~0 & ~(1 << (signo-1)));
1.40 espie 425: (void)fflush(stdout);
1.2 deraadt 426: }
1.40 espie 427: (void)signal(signo, SIG_DFL);
1.1 deraadt 428:
1.40 espie 429: (void)KILL(getpid(), signo);
1.1 deraadt 430:
431: signo = SIGCONT;
1.29 espie 432: Lst_ForEach(&jobs, JobCondPassSig, &signo);
1.1 deraadt 433:
1.40 espie 434: (void)sigprocmask(SIG_SETMASK, &omask, NULL);
1.3 niklas 435: sigprocmask(SIG_SETMASK, &omask, NULL);
436: act.sa_handler = JobPassSig;
437: sigaction(signo, &act, NULL);
1.47 ! deraadt 438: errno = save_errno;
1.1 deraadt 439: }
440:
441: /*-
442: *-----------------------------------------------------------------------
443: * JobCmpPid --
444: * Compare the pid of the job with the given pid and return 0 if they
445: * are equal. This function is called from Job_CatchChildren via
446: * Lst_Find to find the job descriptor of the finished job.
447: *
448: * Results:
449: * 0 if the pid's match
450: *-----------------------------------------------------------------------
451: */
452: static int
1.2 deraadt 453: JobCmpPid(job, pid)
1.28 espie 454: void *job; /* job to examine */
455: void *pid; /* process id desired */
1.1 deraadt 456: {
1.28 espie 457: return *(int *)pid - ((Job *)job)->pid;
1.1 deraadt 458: }
459:
1.2 deraadt 460: #ifdef REMOTE
461: /*-
462: *-----------------------------------------------------------------------
1.40 espie 463: * JobCmpRmtID --
1.2 deraadt 464: * Compare the rmtID of the job with the given rmtID and return 0 if they
1.6 millert 465: * are equal.
1.2 deraadt 466: *
467: * Results:
468: * 0 if the rmtID's match
469: *-----------------------------------------------------------------------
470: */
471: static int
472: JobCmpRmtID(job, rmtID)
1.40 espie 473: void *job; /* job to examine */
474: void *rmtID; /* remote id desired */
1.2 deraadt 475: {
1.40 espie 476: return *(int *)rmtID - *(int *)job->rmtID;
1.2 deraadt 477: }
478: #endif
479:
1.1 deraadt 480: /*-
481: *-----------------------------------------------------------------------
482: * JobPrintCommand --
483: * Put out another command for the given job. If the command starts
484: * with an @ or a - we process it specially. In the former case,
485: * so long as the -s and -n flags weren't given to make, we stick
486: * a shell-specific echoOff command in the script. In the latter,
487: * we ignore errors for the entire job, unless the shell has error
488: * control.
489: * If the command is just "..." we take all future commands for this
490: * job to be commands to be executed once the entire graph has been
491: * made and return non-zero to signal that the end of the commands
492: * was reached. These commands are later attached to the postCommands
493: * node and executed by Job_End when all things are done.
1.40 espie 494: * This function is called from JobStart via Lst_Find
1.1 deraadt 495: *
496: * Results:
1.26 espie 497: * Always 1, unless the command was "..."
1.1 deraadt 498: *
499: * Side Effects:
500: * If the command begins with a '-' and the shell has no error control,
501: * the JOB_IGNERR flag is set in the job descriptor.
502: * If the command is "..." and we're not ignoring such things,
503: * tailCmds is set to the successor node of the cmd.
504: * numCommands is incremented if the command is actually printed.
505: *-----------------------------------------------------------------------
506: */
507: static int
1.2 deraadt 508: JobPrintCommand(cmdp, jobp)
1.40 espie 509: void *cmdp; /* command string to print */
510: void *jobp; /* job for which to print it */
1.1 deraadt 511: {
1.41 espie 512: bool noSpecials; /* true if we shouldn't worry about
1.1 deraadt 513: * inserting special commands into
514: * the input stream. */
1.41 espie 515: bool shutUp = false; /* true if we put a no echo command
1.1 deraadt 516: * into the command file */
1.41 espie 517: bool errOff = false; /* true if we turned error checking
1.1 deraadt 518: * off before printing the command
519: * and need to turn it back on */
1.40 espie 520: char *cmdTemplate; /* Template to use when printing the
1.1 deraadt 521: * command */
1.40 espie 522: char *cmdStart; /* Start of expanded command */
523: LstNode cmdNode; /* Node for replacing the command */
524: char *cmd = (char *)cmdp;
525: Job *job = (Job *)jobp;
1.1 deraadt 526:
1.2 deraadt 527: noSpecials = (noExecute && !(job->node->type & OP_MAKE));
1.1 deraadt 528:
1.2 deraadt 529: if (strcmp(cmd, "...") == 0) {
1.6 millert 530: job->node->type |= OP_SAVE_CMDS;
1.1 deraadt 531: if ((job->flags & JOB_IGNDOTS) == 0) {
1.29 espie 532: job->tailCmds = Lst_Succ(Lst_Member(&job->node->commands, cmd));
1.26 espie 533: return 0;
1.2 deraadt 534: }
1.26 espie 535: return 1;
1.1 deraadt 536: }
537:
1.2 deraadt 538: #define DBPRINTF(fmt, arg) if (DEBUG(JOB)) { \
1.40 espie 539: (void)fprintf(stdout, fmt, arg); \
540: (void)fflush(stdout); \
1.2 deraadt 541: } \
1.40 espie 542: (void)fprintf(job->cmdFILE, fmt, arg); \
543: (void)fflush(job->cmdFILE);
1.1 deraadt 544:
545: numCommands += 1;
546:
1.40 espie 547: /* For debugging, we replace each command with the result of expanding
548: * the variables in the command. */
1.29 espie 549: cmdNode = Lst_Member(&job->node->commands, cmd);
1.41 espie 550: cmdStart = cmd = Var_Subst(cmd, &job->node->context, false);
1.25 espie 551: Lst_Replace(cmdNode, cmdStart);
1.1 deraadt 552:
553: cmdTemplate = "%s\n";
554:
555: /*
556: * Check for leading @' and -'s to control echoing and error checking.
557: */
1.34 espie 558: for (;; cmd++) {
1.40 espie 559: if (*cmd == '@')
1.41 espie 560: shutUp = DEBUG(LOUD) ? false : true;
1.34 espie 561: else if (*cmd == '-')
1.41 espie 562: errOff = true;
1.34 espie 563: else if (*cmd != '+')
564: break;
1.1 deraadt 565: }
566:
1.40 espie 567: while (isspace(*cmd))
1.1 deraadt 568: cmd++;
569:
570: if (shutUp) {
1.2 deraadt 571: if (!(job->flags & JOB_SILENT) && !noSpecials &&
1.1 deraadt 572: commandShell->hasEchoCtl) {
1.2 deraadt 573: DBPRINTF("%s\n", commandShell->echoOff);
1.1 deraadt 574: } else {
1.41 espie 575: shutUp = false;
1.1 deraadt 576: }
577: }
578:
579: if (errOff) {
1.2 deraadt 580: if ( !(job->flags & JOB_IGNERR) && !noSpecials) {
1.1 deraadt 581: if (commandShell->hasErrCtl) {
582: /*
583: * we don't want the error-control commands showing
584: * up either, so we turn off echoing while executing
585: * them. We could put another field in the shell
586: * structure to tell JobDoOutput to look for this
587: * string too, but why make it any more complex than
588: * it already is?
589: */
1.2 deraadt 590: if (!(job->flags & JOB_SILENT) && !shutUp &&
1.1 deraadt 591: commandShell->hasEchoCtl) {
1.2 deraadt 592: DBPRINTF("%s\n", commandShell->echoOff);
593: DBPRINTF("%s\n", commandShell->ignErr);
594: DBPRINTF("%s\n", commandShell->echoOn);
1.1 deraadt 595: } else {
1.2 deraadt 596: DBPRINTF("%s\n", commandShell->ignErr);
1.1 deraadt 597: }
598: } else if (commandShell->ignErr &&
1.2 deraadt 599: (*commandShell->ignErr != '\0'))
1.1 deraadt 600: {
601: /*
602: * The shell has no error control, so we need to be
603: * weird to get it to ignore any errors from the command.
604: * If echoing is turned on, we turn it off and use the
605: * errCheck template to echo the command. Leave echoing
606: * off so the user doesn't see the weirdness we go through
607: * to ignore errors. Set cmdTemplate to use the weirdness
608: * instead of the simple "%s\n" template.
609: */
1.2 deraadt 610: if (!(job->flags & JOB_SILENT) && !shutUp &&
1.1 deraadt 611: commandShell->hasEchoCtl) {
1.2 deraadt 612: DBPRINTF("%s\n", commandShell->echoOff);
613: DBPRINTF(commandShell->errCheck, cmd);
1.41 espie 614: shutUp = true;
1.1 deraadt 615: }
616: cmdTemplate = commandShell->ignErr;
617: /*
1.6 millert 618: * The error ignoration (hee hee) is already taken care
1.1 deraadt 619: * of by the ignErr template, so pretend error checking
620: * is still on.
621: */
1.41 espie 622: errOff = false;
1.1 deraadt 623: } else {
1.41 espie 624: errOff = false;
1.1 deraadt 625: }
626: } else {
1.41 espie 627: errOff = false;
1.1 deraadt 628: }
629: }
1.6 millert 630:
1.2 deraadt 631: DBPRINTF(cmdTemplate, cmd);
1.6 millert 632:
1.1 deraadt 633: if (errOff) {
634: /*
635: * If echoing is already off, there's no point in issuing the
636: * echoOff command. Otherwise we issue it and pretend it was on
637: * for the whole command...
638: */
639: if (!shutUp && !(job->flags & JOB_SILENT) && commandShell->hasEchoCtl){
1.2 deraadt 640: DBPRINTF("%s\n", commandShell->echoOff);
1.41 espie 641: shutUp = true;
1.1 deraadt 642: }
1.2 deraadt 643: DBPRINTF("%s\n", commandShell->errCheck);
1.1 deraadt 644: }
645: if (shutUp) {
1.2 deraadt 646: DBPRINTF("%s\n", commandShell->echoOn);
1.1 deraadt 647: }
1.26 espie 648: return 1;
1.1 deraadt 649: }
650:
651: /*-
652: *-----------------------------------------------------------------------
653: * JobSaveCommand --
654: * Save a command to be executed when everything else is done.
655: * Callback function for JobFinish...
656: *
657: * Side Effects:
658: * The command is tacked onto the end of postCommands's commands list.
659: *-----------------------------------------------------------------------
660: */
1.27 espie 661: static void
1.2 deraadt 662: JobSaveCommand(cmd, gn)
1.40 espie 663: void *cmd;
664: void *gn;
1.1 deraadt 665: {
1.40 espie 666: GNode *g = (GNode *)gn;
667: char *result;
1.28 espie 668:
1.41 espie 669: result = Var_Subst((char *)cmd, &g->context, false);
1.29 espie 670: Lst_AtEnd(&postCommands->commands, result);
1.2 deraadt 671: }
672:
673:
674: /*-
675: *-----------------------------------------------------------------------
676: * JobClose --
677: * Called to close both input and output pipes when a job is finished.
678: *
679: * Side Effects:
680: * The file descriptors associated with the job are closed.
681: *-----------------------------------------------------------------------
682: */
683: static void
684: JobClose(job)
685: Job *job;
686: {
687: if (usePipes) {
688: #ifdef RMT_WILL_WATCH
689: Rmt_Ignore(job->inPipe);
690: #else
1.8 deraadt 691: FD_CLR(job->inPipe, outputsp);
1.2 deraadt 692: #endif
693: if (job->outPipe != job->inPipe) {
1.40 espie 694: (void)close(job->outPipe);
1.2 deraadt 695: }
1.41 espie 696: JobDoOutput(job, true);
1.40 espie 697: (void)close(job->inPipe);
1.2 deraadt 698: } else {
1.40 espie 699: (void)close(job->outFd);
1.41 espie 700: JobDoOutput(job, true);
1.2 deraadt 701: }
1.1 deraadt 702: }
703:
704: /*-
705: *-----------------------------------------------------------------------
706: * JobFinish --
707: * Do final processing for the given job including updating
708: * parents and starting new jobs as available/necessary. Note
709: * that we pay no attention to the JOB_IGNERR flag here.
710: * This is because when we're called because of a noexecute flag
711: * or something, jstat.w_status is 0 and when called from
712: * Job_CatchChildren, the status is zeroed if it s/b ignored.
713: *
714: * Side Effects:
715: * Some nodes may be put on the toBeMade queue.
716: * Final commands for the job are placed on postCommands.
717: *
1.6 millert 718: * If we got an error and are aborting (aborting == ABORT_ERROR) and
1.1 deraadt 719: * the job list is now empty, we are done for the day.
1.6 millert 720: * If we recognized an error (errors !=0), we set the aborting flag
1.1 deraadt 721: * to ABORT_ERROR so no more jobs will be started.
722: *-----------------------------------------------------------------------
723: */
724: /*ARGSUSED*/
725: static void
1.2 deraadt 726: JobFinish(job, status)
1.40 espie 727: Job *job; /* job to finish */
728: int *status; /* sub-why job went away */
1.2 deraadt 729: {
1.41 espie 730: bool done;
1.2 deraadt 731:
732: if ((WIFEXITED(*status) &&
1.40 espie 733: WEXITSTATUS(*status) != 0 && !(job->flags & JOB_IGNERR)) ||
734: (WIFSIGNALED(*status) && WTERMSIG(*status) != SIGCONT))
1.1 deraadt 735: {
736: /*
737: * If it exited non-zero and either we're doing things our
738: * way or we're not ignoring errors, the job is finished.
739: * Similarly, if the shell died because of a signal
740: * the job is also finished. In these
741: * cases, finish out the job's output before printing the exit
742: * status...
743: */
1.2 deraadt 744: #ifdef REMOTE
745: KILL(job->pid, SIGCONT);
746: #endif
747: JobClose(job);
1.1 deraadt 748: if (job->cmdFILE != NULL && job->cmdFILE != stdout) {
1.40 espie 749: (void)fclose(job->cmdFILE);
1.1 deraadt 750: }
1.41 espie 751: done = true;
1.2 deraadt 752: #ifdef REMOTE
753: if (job->flags & JOB_REMOTE)
754: Rmt_Done(job->rmtID, job->node);
755: #endif
756: } else if (WIFEXITED(*status)) {
1.1 deraadt 757: /*
758: * Deal with ignored errors in -B mode. We need to print a message
759: * telling of the ignored error as well as setting status.w_status
760: * to 0 so the next command gets run. To do this, we set done to be
1.41 espie 761: * true if in -B mode and the job exited non-zero.
1.2 deraadt 762: */
763: done = WEXITSTATUS(*status) != 0;
1.6 millert 764: /*
1.2 deraadt 765: * Old comment said: "Note we don't
1.1 deraadt 766: * want to close down any of the streams until we know we're at the
1.2 deraadt 767: * end."
768: * But we do. Otherwise when are we going to print the rest of the
769: * stuff?
770: */
771: JobClose(job);
772: #ifdef REMOTE
773: if (job->flags & JOB_REMOTE)
774: Rmt_Done(job->rmtID, job->node);
775: #endif /* REMOTE */
1.1 deraadt 776: } else {
777: /*
778: * No need to close things down or anything.
779: */
1.41 espie 780: done = false;
1.1 deraadt 781: }
1.6 millert 782:
1.1 deraadt 783: if (done ||
1.2 deraadt 784: WIFSTOPPED(*status) ||
1.40 espie 785: (WIFSIGNALED(*status) && WTERMSIG(*status) == SIGCONT) ||
1.1 deraadt 786: DEBUG(JOB))
787: {
788: FILE *out;
1.6 millert 789:
1.2 deraadt 790: if (compatMake && !usePipes && (job->flags & JOB_IGNERR)) {
1.1 deraadt 791: /*
792: * If output is going to a file and this job is ignoring
793: * errors, arrange to have the exit status sent to the
794: * output file as well.
795: */
1.2 deraadt 796: out = fdopen(job->outFd, "w");
1.1 deraadt 797: } else {
798: out = stdout;
799: }
800:
1.2 deraadt 801: if (WIFEXITED(*status)) {
802: if (DEBUG(JOB)) {
1.40 espie 803: (void)fprintf(stdout, "Process %d exited.\n", job->pid);
804: (void)fflush(stdout);
1.2 deraadt 805: }
806: if (WEXITSTATUS(*status) != 0) {
1.1 deraadt 807: if (usePipes && job->node != lastNode) {
1.2 deraadt 808: MESSAGE(out, job->node);
1.1 deraadt 809: lastNode = job->node;
810: }
1.40 espie 811: (void)fprintf(out, "*** Error code %d%s\n",
1.2 deraadt 812: WEXITSTATUS(*status),
813: (job->flags & JOB_IGNERR) ? "(ignored)" : "");
1.1 deraadt 814:
815: if (job->flags & JOB_IGNERR) {
1.2 deraadt 816: *status = 0;
1.1 deraadt 817: }
818: } else if (DEBUG(JOB)) {
819: if (usePipes && job->node != lastNode) {
1.2 deraadt 820: MESSAGE(out, job->node);
1.1 deraadt 821: lastNode = job->node;
822: }
1.40 espie 823: (void)fprintf(out, "*** Completed successfully\n");
1.2 deraadt 824: }
825: } else if (WIFSTOPPED(*status)) {
826: if (DEBUG(JOB)) {
1.40 espie 827: (void)fprintf(stdout, "Process %d stopped.\n", job->pid);
828: (void)fflush(stdout);
1.1 deraadt 829: }
830: if (usePipes && job->node != lastNode) {
1.2 deraadt 831: MESSAGE(out, job->node);
1.1 deraadt 832: lastNode = job->node;
833: }
1.2 deraadt 834: if (!(job->flags & JOB_REMIGRATE)) {
1.40 espie 835: (void)fprintf(out, "*** Stopped -- signal %d\n",
1.6 millert 836: WSTOPSIG(*status));
1.1 deraadt 837: }
838: job->flags |= JOB_RESUME;
1.29 espie 839: Lst_AtEnd(&stoppedJobs, job);
1.2 deraadt 840: #ifdef REMOTE
841: if (job->flags & JOB_REMIGRATE)
842: JobRestart(job);
843: #endif
1.40 espie 844: (void)fflush(out);
1.1 deraadt 845: return;
1.2 deraadt 846: } else if (WTERMSIG(*status) == SIGCONT) {
1.1 deraadt 847: /*
848: * If the beastie has continued, shift the Job from the stopped
1.6 millert 849: * list to the running one (or re-stop it if concurrency is
1.1 deraadt 850: * exceeded) and go and get another child.
851: */
852: if (job->flags & (JOB_RESUME|JOB_REMIGRATE|JOB_RESTART)) {
853: if (usePipes && job->node != lastNode) {
1.2 deraadt 854: MESSAGE(out, job->node);
1.1 deraadt 855: lastNode = job->node;
856: }
1.40 espie 857: (void)fprintf(out, "*** Continued\n");
1.1 deraadt 858: }
1.2 deraadt 859: if (!(job->flags & JOB_CONTINUING)) {
860: if (DEBUG(JOB)) {
1.40 espie 861: (void)fprintf(stdout,
1.2 deraadt 862: "Warning: process %d was not continuing.\n",
863: job->pid);
1.40 espie 864: (void)fflush(stdout);
1.2 deraadt 865: }
866: #ifdef notdef
867: /*
868: * We don't really want to restart a job from scratch just
869: * because it continued, especially not without killing the
1.40 espie 870: * continuing process! That's why this is ifdef'ed out.
1.2 deraadt 871: * FD - 9/17/90
872: */
1.1 deraadt 873: JobRestart(job);
1.2 deraadt 874: #endif
875: }
876: job->flags &= ~JOB_CONTINUING;
1.40 espie 877: Lst_AtEnd(&jobs, job);
1.2 deraadt 878: nJobs += 1;
879: if (!(job->flags & JOB_REMOTE)) {
880: if (DEBUG(JOB)) {
1.40 espie 881: (void)fprintf(stdout,
1.2 deraadt 882: "Process %d is continuing locally.\n",
883: job->pid);
1.40 espie 884: (void)fflush(stdout);
885: }
1.2 deraadt 886: nLocal += 1;
1.1 deraadt 887: }
1.2 deraadt 888: if (nJobs == maxJobs) {
1.41 espie 889: jobFull = true;
1.2 deraadt 890: if (DEBUG(JOB)) {
1.40 espie 891: (void)fprintf(stdout, "Job queue is full.\n");
892: (void)fflush(stdout);
893: }
894: }
895: (void)fflush(out);
896: return;
1.1 deraadt 897: } else {
898: if (usePipes && job->node != lastNode) {
1.2 deraadt 899: MESSAGE(out, job->node);
1.1 deraadt 900: lastNode = job->node;
901: }
1.40 espie 902: (void)fprintf(out, "*** Signal %d\n", WTERMSIG(*status));
1.1 deraadt 903: }
904:
1.40 espie 905: (void)fflush(out);
1.1 deraadt 906: }
907:
908: /*
909: * Now handle the -B-mode stuff. If the beast still isn't finished,
910: * try and restart the job on the next command. If JobStart says it's
911: * ok, it's ok. If there's an error, this puppy is done.
912: */
1.40 espie 913: if (compatMake && WIFEXITED(*status) && job->node->current != NULL) {
1.2 deraadt 914: switch (JobStart(job->node, job->flags & JOB_IGNDOTS, job)) {
915: case JOB_RUNNING:
1.41 espie 916: done = false;
1.2 deraadt 917: break;
918: case JOB_ERROR:
1.41 espie 919: done = true;
1.2 deraadt 920: W_SETEXITSTATUS(status, 1);
921: break;
922: case JOB_FINISHED:
923: /*
924: * If we got back a JOB_FINISHED code, JobStart has already
925: * called Make_Update and freed the job descriptor. We set
926: * done to false here to avoid fake cycles and double frees.
927: * JobStart needs to do the update so we can proceed up the
928: * graph when given the -n flag..
929: */
1.41 espie 930: done = false;
1.2 deraadt 931: break;
1.1 deraadt 932: }
1.40 espie 933: } else
1.41 espie 934: done = true;
1.1 deraadt 935:
936: if (done &&
1.40 espie 937: aborting != ABORT_ERROR &&
938: aborting != ABORT_INTERRUPT &&
939: *status == 0) {
940: /* As long as we aren't aborting and the job didn't return a non-zero
1.1 deraadt 941: * status that we shouldn't ignore, we call Make_Update to update
942: * the parents. In addition, any saved commands for the node are placed
1.40 espie 943: * on the .END target. */
1.27 espie 944: Lst_ForEachFrom(job->tailCmds, JobSaveCommand, job->node);
1.1 deraadt 945: job->node->made = MADE;
1.2 deraadt 946: Make_Update(job->node);
1.28 espie 947: free(job);
1.5 briggs 948: } else if (*status != 0) {
1.1 deraadt 949: errors += 1;
1.28 espie 950: free(job);
1.1 deraadt 951: }
952:
1.2 deraadt 953: JobRestartJobs();
1.1 deraadt 954:
955: /*
956: * Set aborting if any error.
957: */
1.40 espie 958: if (errors && !keepgoing && aborting != ABORT_INTERRUPT) {
1.1 deraadt 959: /*
960: * If we found any errors in this batch of children and the -k flag
961: * wasn't given, we set the aborting flag so no more jobs get
962: * started.
963: */
964: aborting = ABORT_ERROR;
965: }
1.6 millert 966:
1.40 espie 967: if (aborting == ABORT_ERROR && Job_Empty()) {
1.1 deraadt 968: /*
969: * If we are aborting and the job table is now empty, we finish.
970: */
1.40 espie 971: (void)eunlink(tfile);
1.2 deraadt 972: Finish(errors);
1.40 espie 973: }
1.1 deraadt 974: }
975:
976: /*-
977: *-----------------------------------------------------------------------
978: * Job_Touch --
979: * Touch the given target. Called by JobStart when the -t flag was
980: * given
981: *
982: * Side Effects:
983: * The data modification of the file is changed. In addition, if the
984: * file did not exist, it is created.
985: *-----------------------------------------------------------------------
986: */
987: void
1.2 deraadt 988: Job_Touch(gn, silent)
1.40 espie 989: GNode *gn; /* the node of the file to touch */
1.41 espie 990: bool silent; /* true if should not print messages */
1.1 deraadt 991: {
1.40 espie 992: int streamID; /* ID of stream opened to do the touch */
1.1 deraadt 993:
994: if (gn->type & (OP_JOIN|OP_USE|OP_EXEC|OP_OPTIONAL)) {
995: /*
996: * .JOIN, .USE, .ZEROTIME and .OPTIONAL targets are "virtual" targets
997: * and, as such, shouldn't really be created.
998: */
999: return;
1000: }
1.6 millert 1001:
1.1 deraadt 1002: if (!silent) {
1.40 espie 1003: (void)fprintf(stdout, "touch %s\n", gn->name);
1004: (void)fflush(stdout);
1.1 deraadt 1005: }
1006:
1007: if (noExecute) {
1008: return;
1009: }
1010:
1011: if (gn->type & OP_ARCHV) {
1.2 deraadt 1012: Arch_Touch(gn);
1.1 deraadt 1013: } else if (gn->type & OP_LIB) {
1.2 deraadt 1014: Arch_TouchLib(gn);
1.1 deraadt 1015: } else {
1.40 espie 1016: const char *file = gn->path != NULL ? gn->path : gn->name;
1.1 deraadt 1017:
1.40 espie 1018: if (set_times(file) == -1){
1.2 deraadt 1019: streamID = open(file, O_RDWR | O_CREAT, 0666);
1.1 deraadt 1020:
1021: if (streamID >= 0) {
1022: char c;
1023:
1024: /*
1025: * Read and write a byte to the file to change the
1026: * modification time, then close the file.
1027: */
1028: if (read(streamID, &c, 1) == 1) {
1.40 espie 1029: (void)lseek(streamID, 0, SEEK_SET);
1030: (void)write(streamID, &c, 1);
1.1 deraadt 1031: }
1.6 millert 1032:
1.40 espie 1033: (void)close(streamID);
1.2 deraadt 1034: } else {
1.40 espie 1035: (void)fprintf(stdout, "*** couldn't touch %s: %s",
1.2 deraadt 1036: file, strerror(errno));
1.40 espie 1037: (void)fflush(stdout);
1.2 deraadt 1038: }
1.1 deraadt 1039: }
1040: }
1041: }
1042:
1043: /*-
1044: *-----------------------------------------------------------------------
1045: * Job_CheckCommands --
1.6 millert 1046: * Make sure the given node has all the commands it needs.
1.1 deraadt 1047: *
1048: * Results:
1.41 espie 1049: * true if the commands list is/was ok.
1.1 deraadt 1050: *
1051: * Side Effects:
1052: * The node will have commands from the .DEFAULT rule added to it
1053: * if it needs them.
1054: *-----------------------------------------------------------------------
1055: */
1.41 espie 1056: bool
1.2 deraadt 1057: Job_CheckCommands(gn, abortProc)
1.40 espie 1058: GNode *gn; /* The target whose commands need
1.1 deraadt 1059: * verifying */
1.40 espie 1060: void (*abortProc)(char *, ...);
1.1 deraadt 1061: /* Function to abort with message */
1062: {
1.29 espie 1063: if (OP_NOP(gn->type) && Lst_IsEmpty(&gn->commands) &&
1.1 deraadt 1064: (gn->type & OP_LIB) == 0) {
1065: /*
1066: * No commands. Look for .DEFAULT rule from which we might infer
1.6 millert 1067: * commands
1.1 deraadt 1068: */
1.40 espie 1069: if (DEFAULT != NULL && !Lst_IsEmpty(&DEFAULT->commands)) {
1.1 deraadt 1070: /*
1071: * Make only looks for a .DEFAULT if the node was never the
1072: * target of an operator, so that's what we do too. If
1073: * a .DEFAULT was given, we substitute its commands for gn's
1074: * commands and set the IMPSRC variable to be the target's name
1075: * The DEFAULT node acts like a transformation rule, in that
1076: * gn also inherits any attributes or sources attached to
1077: * .DEFAULT itself.
1078: */
1079: Make_HandleUse(DEFAULT, gn);
1.31 espie 1080: Varq_Set(IMPSRC_INDEX, Varq_Value(TARGET_INDEX, gn), gn);
1.37 espie 1081: } else if (is_out_of_date(Dir_MTime(gn))) {
1.1 deraadt 1082: /*
1083: * The node wasn't the target of an operator we have no .DEFAULT
1084: * rule to go on and the target doesn't already exist. There's
1085: * nothing more we can do for this branch. If the -k flag wasn't
1086: * given, we stop in our tracks, otherwise we just don't update
1.6 millert 1087: * this node's parents so they never get examined.
1.1 deraadt 1088: */
1.2 deraadt 1089: static const char msg[] = "make: don't know how to make";
1090:
1.1 deraadt 1091: if (gn->type & OP_OPTIONAL) {
1.40 espie 1092: (void)fprintf(stdout, "%s %s(ignored)\n", msg, gn->name);
1093: (void)fflush(stdout);
1.1 deraadt 1094: } else if (keepgoing) {
1.40 espie 1095: (void)fprintf(stdout, "%s %s(continuing)\n", msg, gn->name);
1096: (void)fflush(stdout);
1.41 espie 1097: return false;
1.1 deraadt 1098: } else {
1.39 espie 1099: (*abortProc)("%s %s. Stop in %s.", msg, gn->name,
1.40 espie 1100: Var_Value(".CURDIR"));
1.41 espie 1101: return false;
1.1 deraadt 1102: }
1103: }
1104: }
1.41 espie 1105: return true;
1.1 deraadt 1106: }
1107: #ifdef RMT_WILL_WATCH
1108: /*-
1109: *-----------------------------------------------------------------------
1110: * JobLocalInput --
1111: * Handle a pipe becoming readable. Callback function for Rmt_Watch
1112: *
1113: * Side Effects:
1114: * JobDoOutput is called.
1115: *-----------------------------------------------------------------------
1116: */
1117: /*ARGSUSED*/
1118: static void
1119: JobLocalInput(stream, job)
1.40 espie 1120: int stream; /* Stream that's ready (ignored) */
1121: Job *job; /* Job to which the stream belongs */
1.1 deraadt 1122: {
1.41 espie 1123: JobDoOutput(job, false);
1.1 deraadt 1124: }
1125: #endif /* RMT_WILL_WATCH */
1126:
1127: /*-
1128: *-----------------------------------------------------------------------
1129: * JobExec --
1130: * Execute the shell for the given job. Called from JobStart and
1131: * JobRestart.
1132: *
1133: * Side Effects:
1134: * A shell is executed, outputs is altered and the Job structure added
1135: * to the job table.
1136: *-----------------------------------------------------------------------
1137: */
1138: static void
1139: JobExec(job, argv)
1.40 espie 1140: Job *job; /* Job to execute */
1141: char **argv;
1.1 deraadt 1142: {
1.40 espie 1143: int cpid; /* ID of new child */
1.6 millert 1144:
1.1 deraadt 1145: if (DEBUG(JOB)) {
1.40 espie 1146: int i;
1.6 millert 1147:
1.40 espie 1148: (void)fprintf(stdout, "Running %s %sly\n", job->node->name,
1.2 deraadt 1149: job->flags&JOB_REMOTE?"remote":"local");
1.40 espie 1150: (void)fprintf(stdout, "\tCommand: ");
1.2 deraadt 1151: for (i = 0; argv[i] != NULL; i++) {
1.40 espie 1152: (void)fprintf(stdout, "%s ", argv[i]);
1.1 deraadt 1153: }
1.40 espie 1154: (void)fprintf(stdout, "\n");
1155: (void)fflush(stdout);
1.1 deraadt 1156: }
1.6 millert 1157:
1.1 deraadt 1158: /*
1159: * Some jobs produce no output and it's disconcerting to have
1.6 millert 1160: * no feedback of their running (since they produce no output, the
1.1 deraadt 1161: * banner with their name in it never appears). This is an attempt to
1162: * provide that feedback, even if nothing follows it.
1163: */
1.40 espie 1164: if (lastNode != job->node && (job->flags & JOB_FIRST) &&
1.2 deraadt 1165: !(job->flags & JOB_SILENT)) {
1166: MESSAGE(stdout, job->node);
1.1 deraadt 1167: lastNode = job->node;
1168: }
1.6 millert 1169:
1.1 deraadt 1170: #ifdef RMT_NO_EXEC
1171: if (job->flags & JOB_REMOTE) {
1172: goto jobExecFinish;
1173: }
1174: #endif /* RMT_NO_EXEC */
1175:
1.2 deraadt 1176: if ((cpid = vfork()) == -1) {
1177: Punt("Cannot fork");
1.1 deraadt 1178: } else if (cpid == 0) {
1179:
1180: /*
1181: * Must duplicate the input stream down to the child's input and
1.6 millert 1182: * reset it to the beginning (again). Since the stream was marked
1.1 deraadt 1183: * close-on-exec, we must clear that bit in the new input.
1184: */
1.2 deraadt 1185: if (dup2(FILENO(job->cmdFILE), 0) == -1)
1186: Punt("Cannot dup2: %s", strerror(errno));
1.40 espie 1187: (void)fcntl(0, F_SETFD, 0);
1188: (void)lseek(0, 0, SEEK_SET);
1.6 millert 1189:
1.1 deraadt 1190: if (usePipes) {
1191: /*
1192: * Set up the child's output to be routed through the pipe
1193: * we've created for it.
1194: */
1.2 deraadt 1195: if (dup2(job->outPipe, 1) == -1)
1196: Punt("Cannot dup2: %s", strerror(errno));
1.1 deraadt 1197: } else {
1198: /*
1199: * We're capturing output in a file, so we duplicate the
1200: * descriptor to the temporary file into the standard
1201: * output.
1202: */
1.2 deraadt 1203: if (dup2(job->outFd, 1) == -1)
1204: Punt("Cannot dup2: %s", strerror(errno));
1.1 deraadt 1205: }
1206: /*
1207: * The output channels are marked close on exec. This bit was
1.6 millert 1208: * duplicated by the dup2 (on some systems), so we have to clear
1.1 deraadt 1209: * it before routing the shell's error output to the same place as
1210: * its standard output.
1211: */
1.40 espie 1212: (void)fcntl(1, F_SETFD, 0);
1.2 deraadt 1213: if (dup2(1, 2) == -1)
1214: Punt("Cannot dup2: %s", strerror(errno));
1.1 deraadt 1215:
1216: #ifdef USE_PGRP
1217: /*
1218: * We want to switch the child into a different process family so
1219: * we can kill it and all its descendants in one fell swoop,
1220: * by killing its process family, but not commit suicide.
1221: */
1.2 deraadt 1222: # if defined(SYSV)
1.40 espie 1223: (void)setsid();
1.2 deraadt 1224: # else
1.40 espie 1225: (void)setpgid(0, getpid());
1.2 deraadt 1226: # endif
1227: #endif /* USE_PGRP */
1.1 deraadt 1228:
1.2 deraadt 1229: #ifdef REMOTE
1230: if (job->flags & JOB_REMOTE) {
1.41 espie 1231: Rmt_Exec(shellPath, argv, false);
1.6 millert 1232: } else
1.2 deraadt 1233: #endif /* REMOTE */
1.40 espie 1234: (void)execv(shellPath, argv);
1.2 deraadt 1235:
1.40 espie 1236: (void)write(2, "Could not execute shell\n",
1.2 deraadt 1237: sizeof("Could not execute shell"));
1238: _exit(1);
1.1 deraadt 1239: } else {
1.2 deraadt 1240: #ifdef REMOTE
1.43 millert 1241: sigset_t mask, omask;
1242:
1243: sigemptyset(&mask);
1244: sigaddset(&mask, SIGCHLD);
1245: sigprocmask(SIG_BLOCK, &mask, &omask);
1.2 deraadt 1246: #endif
1.1 deraadt 1247: job->pid = cpid;
1248:
1249: if (usePipes && (job->flags & JOB_FIRST) ) {
1250: /*
1251: * The first time a job is run for a node, we set the current
1252: * position in the buffer to the beginning and mark another
1253: * stream to watch in the outputs mask
1254: */
1255: job->curPos = 0;
1.6 millert 1256:
1.1 deraadt 1257: #ifdef RMT_WILL_WATCH
1258: Rmt_Watch(job->inPipe, JobLocalInput, job);
1259: #else
1.8 deraadt 1260: if (outputsp == NULL || job->inPipe > outputsn) {
1261: int bytes = howmany(job->inPipe+1, NFDBITS) * sizeof(fd_mask);
1262: int obytes = howmany(outputsn+1, NFDBITS) * sizeof(fd_mask);
1263:
1.9 flipk 1264: if (outputsp == NULL || obytes != bytes) {
1.8 deraadt 1265: outputsp = realloc(outputsp, bytes);
1266: if (outputsp == NULL)
1267: return;
1268: memset(outputsp + obytes, 0, bytes - obytes);
1269: }
1270: outputsn = job->inPipe;
1271: }
1272: FD_SET(job->inPipe, outputsp);
1.1 deraadt 1273: #endif /* RMT_WILL_WATCH */
1274: }
1275:
1276: if (job->flags & JOB_REMOTE) {
1.2 deraadt 1277: #ifndef REMOTE
1.1 deraadt 1278: job->rmtID = 0;
1.2 deraadt 1279: #else
1280: job->rmtID = Rmt_LastID(job->pid);
1281: #endif /* REMOTE */
1.1 deraadt 1282: } else {
1283: nLocal += 1;
1284: /*
1.2 deraadt 1285: * XXX: Used to not happen if REMOTE. Why?
1.1 deraadt 1286: */
1.2 deraadt 1287: if (job->cmdFILE != NULL && job->cmdFILE != stdout) {
1.40 espie 1288: (void)fclose(job->cmdFILE);
1.1 deraadt 1289: job->cmdFILE = NULL;
1290: }
1291: }
1.2 deraadt 1292: #ifdef REMOTE
1.43 millert 1293: sigprocmask(SIG_SETMASK, &omask, NULL);
1.2 deraadt 1294: #endif
1.1 deraadt 1295: }
1296:
1297: #ifdef RMT_NO_EXEC
1.6 millert 1298: jobExecFinish:
1.1 deraadt 1299: #endif
1300: /*
1301: * Now the job is actually running, add it to the table.
1302: */
1303: nJobs += 1;
1.29 espie 1304: Lst_AtEnd(&jobs, job);
1.1 deraadt 1305: if (nJobs == maxJobs) {
1.41 espie 1306: jobFull = true;
1.1 deraadt 1307: }
1308: }
1309:
1310: /*-
1311: *-----------------------------------------------------------------------
1312: * JobMakeArgv --
1313: * Create the argv needed to execute the shell for a given job.
1314: *-----------------------------------------------------------------------
1315: */
1316: static void
1317: JobMakeArgv(job, argv)
1.40 espie 1318: Job *job;
1.1 deraadt 1319: char **argv;
1320: {
1.40 espie 1321: int argc;
1322: static char args[10]; /* For merged arguments */
1.6 millert 1323:
1.1 deraadt 1324: argv[0] = shellName;
1325: argc = 1;
1326:
1.40 espie 1327: if ((commandShell->exit && *commandShell->exit != '-') ||
1328: (commandShell->echo && *commandShell->echo != '-'))
1.1 deraadt 1329: {
1330: /*
1331: * At least one of the flags doesn't have a minus before it, so
1332: * merge them together. Have to do this because the *(&(@*#*&#$#
1333: * Bourne shell thinks its second argument is a file to source.
1334: * Grrrr. Note the ten-character limitation on the combined arguments.
1335: */
1336: (void)sprintf(args, "-%s%s",
1337: ((job->flags & JOB_IGNERR) ? "" :
1338: (commandShell->exit ? commandShell->exit : "")),
1339: ((job->flags & JOB_SILENT) ? "" :
1340: (commandShell->echo ? commandShell->echo : "")));
1341:
1342: if (args[1]) {
1343: argv[argc] = args;
1344: argc++;
1345: }
1346: } else {
1347: if (!(job->flags & JOB_IGNERR) && commandShell->exit) {
1348: argv[argc] = commandShell->exit;
1349: argc++;
1350: }
1351: if (!(job->flags & JOB_SILENT) && commandShell->echo) {
1352: argv[argc] = commandShell->echo;
1353: argc++;
1354: }
1355: }
1.2 deraadt 1356: argv[argc] = NULL;
1.1 deraadt 1357: }
1358:
1359: /*-
1360: *-----------------------------------------------------------------------
1361: * JobRestart --
1.6 millert 1362: * Restart a job that stopped for some reason.
1.1 deraadt 1363: *
1364: * Side Effects:
1365: * jobFull will be set if the job couldn't be run.
1366: *-----------------------------------------------------------------------
1367: */
1368: static void
1369: JobRestart(job)
1.40 espie 1370: Job *job; /* Job to restart */
1.1 deraadt 1371: {
1.2 deraadt 1372: #ifdef REMOTE
1373: int host;
1374: #endif
1.6 millert 1375:
1.1 deraadt 1376: if (job->flags & JOB_REMIGRATE) {
1.2 deraadt 1377: if (
1378: #ifdef REMOTE
1379: verboseRemigrates ||
1380: #endif
1381: DEBUG(JOB)) {
1.40 espie 1382: (void)fprintf(stdout, "*** remigrating %x(%s)\n",
1.2 deraadt 1383: job->pid, job->node->name);
1.40 espie 1384: (void)fflush(stdout);
1.1 deraadt 1385: }
1.2 deraadt 1386:
1387: #ifdef REMOTE
1388: if (!Rmt_ReExport(job->pid, job->node, &host)) {
1389: if (verboseRemigrates || DEBUG(JOB)) {
1.40 espie 1390: (void)fprintf(stdout, "*** couldn't migrate...\n");
1391: (void)fflush(stdout);
1.2 deraadt 1392: }
1393: #endif
1394: if (nLocal != maxLocal) {
1.1 deraadt 1395: /*
1396: * Job cannot be remigrated, but there's room on the local
1397: * machine, so resume the job and note that another
1398: * local job has started.
1399: */
1.2 deraadt 1400: if (
1401: #ifdef REMOTE
1402: verboseRemigrates ||
1403: #endif
1404: DEBUG(JOB)) {
1.40 espie 1405: (void)fprintf(stdout, "*** resuming on local machine\n");
1406: (void)fflush(stdout);
1.2 deraadt 1407: }
1.1 deraadt 1408: KILL(job->pid, SIGCONT);
1409: nLocal +=1;
1.2 deraadt 1410: #ifdef REMOTE
1411: job->flags &= ~(JOB_REMIGRATE|JOB_RESUME|JOB_REMOTE);
1412: job->flags |= JOB_CONTINUING;
1413: #else
1.1 deraadt 1414: job->flags &= ~(JOB_REMIGRATE|JOB_RESUME);
1.2 deraadt 1415: #endif
1.1 deraadt 1416: } else {
1417: /*
1418: * Job cannot be restarted. Mark the table as full and
1419: * place the job back on the list of stopped jobs.
1420: */
1.2 deraadt 1421: if (
1422: #ifdef REMOTE
1423: verboseRemigrates ||
1424: #endif
1425: DEBUG(JOB)) {
1.40 espie 1426: (void)fprintf(stdout, "*** holding\n");
1427: (void)fflush(stdout);
1428: }
1.29 espie 1429: Lst_AtFront(&stoppedJobs, job);
1.41 espie 1430: jobFull = true;
1.1 deraadt 1431: if (DEBUG(JOB)) {
1.40 espie 1432: (void)fprintf(stdout, "Job queue is full.\n");
1433: (void)fflush(stdout);
1.1 deraadt 1434: }
1435: return;
1.2 deraadt 1436: }
1437: #ifdef REMOTE
1438: } else {
1439: /*
1440: * Clear out the remigrate and resume flags. Set the continuing
1441: * flag so we know later on that the process isn't exiting just
1442: * because of a signal.
1443: */
1444: job->flags &= ~(JOB_REMIGRATE|JOB_RESUME);
1445: job->flags |= JOB_CONTINUING;
1446: job->rmtID = host;
1.1 deraadt 1447: }
1.2 deraadt 1448: #endif
1.6 millert 1449:
1.29 espie 1450: Lst_AtEnd(&jobs, job);
1.1 deraadt 1451: nJobs += 1;
1452: if (nJobs == maxJobs) {
1.41 espie 1453: jobFull = true;
1.1 deraadt 1454: if (DEBUG(JOB)) {
1.40 espie 1455: (void)fprintf(stdout, "Job queue is full.\n");
1456: (void)fflush(stdout);
1.1 deraadt 1457: }
1458: }
1459: } else if (job->flags & JOB_RESTART) {
1460: /*
1461: * Set up the control arguments to the shell. This is based on the
1462: * flags set earlier for this job. If the JOB_IGNERR flag is clear,
1463: * the 'exit' flag of the commandShell is used to cause it to exit
1464: * upon receiving an error. If the JOB_SILENT flag is clear, the
1465: * 'echo' flag of the commandShell is used to get it to start echoing
1.6 millert 1466: * as soon as it starts processing commands.
1.1 deraadt 1467: */
1468: char *argv[4];
1.6 millert 1469:
1.1 deraadt 1470: JobMakeArgv(job, argv);
1.2 deraadt 1471:
1.1 deraadt 1472: if (DEBUG(JOB)) {
1.40 espie 1473: (void)fprintf(stdout, "Restarting %s...", job->node->name);
1474: (void)fflush(stdout);
1.1 deraadt 1475: }
1.2 deraadt 1476: #ifdef REMOTE
1477: if ((job->node->type&OP_NOEXPORT) ||
1.40 espie 1478: (nLocal < maxLocal && runLocalFirst)
1.2 deraadt 1479: # ifdef RMT_NO_EXEC
1480: || !Rmt_Export(shellPath, argv, job)
1481: # else
1482: || !Rmt_Begin(shellPath, argv, job->node)
1483: # endif
1484: #endif
1485: {
1.40 espie 1486: if (nLocal >= maxLocal && !(job->flags & JOB_SPECIAL)) {
1.1 deraadt 1487: /*
1488: * Can't be exported and not allowed to run locally -- put it
1489: * back on the hold queue and mark the table full
1490: */
1491: if (DEBUG(JOB)) {
1.40 espie 1492: (void)fprintf(stdout, "holding\n");
1493: (void)fflush(stdout);
1.1 deraadt 1494: }
1.29 espie 1495: Lst_AtFront(&stoppedJobs, job);
1.41 espie 1496: jobFull = true;
1.1 deraadt 1497: if (DEBUG(JOB)) {
1.40 espie 1498: (void)fprintf(stdout, "Job queue is full.\n");
1499: (void)fflush(stdout);
1.1 deraadt 1500: }
1501: return;
1.2 deraadt 1502: } else {
1.1 deraadt 1503: /*
1504: * Job may be run locally.
1505: */
1506: if (DEBUG(JOB)) {
1.40 espie 1507: (void)fprintf(stdout, "running locally\n");
1508: (void)fflush(stdout);
1.1 deraadt 1509: }
1510: job->flags &= ~JOB_REMOTE;
1.2 deraadt 1511: }
1512: }
1513: #ifdef REMOTE
1514: else {
1515: /*
1516: * Can be exported. Hooray!
1517: */
1518: if (DEBUG(JOB)) {
1.40 espie 1519: (void)fprintf(stdout, "exporting\n");
1520: (void)fflush(stdout);
1.2 deraadt 1521: }
1522: job->flags |= JOB_REMOTE;
1.1 deraadt 1523: }
1.2 deraadt 1524: #endif
1.1 deraadt 1525: JobExec(job, argv);
1526: } else {
1527: /*
1528: * The job has stopped and needs to be restarted. Why it stopped,
1529: * we don't know...
1530: */
1531: if (DEBUG(JOB)) {
1.40 espie 1532: (void)fprintf(stdout, "Resuming %s...", job->node->name);
1533: (void)fflush(stdout);
1.1 deraadt 1534: }
1535: if (((job->flags & JOB_REMOTE) ||
1.40 espie 1536: nLocal < maxLocal ||
1.2 deraadt 1537: #ifdef REMOTE
1.40 espie 1538: ((job->flags & JOB_SPECIAL) &&
1539: (job->node->type & OP_NOEXPORT) &&
1540: maxLocal == 0)
1.2 deraadt 1541: #else
1542: ((job->flags & JOB_SPECIAL) &&
1.40 espie 1543: maxLocal == 0)
1.2 deraadt 1544: #endif
1.40 espie 1545: ) && nJobs != maxJobs)
1.1 deraadt 1546: {
1547: /*
1548: * If the job is remote, it's ok to resume it as long as the
1549: * maximum concurrency won't be exceeded. If it's local and
1.6 millert 1550: * we haven't reached the local concurrency limit already (or the
1.1 deraadt 1551: * job must be run locally and maxLocal is 0), it's also ok to
1552: * resume it.
1553: */
1.41 espie 1554: bool error;
1.2 deraadt 1555: int status;
1.6 millert 1556:
1.1 deraadt 1557: #ifdef RMT_WANTS_SIGNALS
1558: if (job->flags & JOB_REMOTE) {
1559: error = !Rmt_Signal(job, SIGCONT);
1560: } else
1561: #endif /* RMT_WANTS_SIGNALS */
1.40 espie 1562: error = KILL(job->pid, SIGCONT) != 0;
1.1 deraadt 1563:
1564: if (!error) {
1565: /*
1566: * Make sure the user knows we've continued the beast and
1567: * actually put the thing in the job table.
1568: */
1569: job->flags |= JOB_CONTINUING;
1.2 deraadt 1570: W_SETTERMSIG(&status, SIGCONT);
1571: JobFinish(job, &status);
1.6 millert 1572:
1.1 deraadt 1573: job->flags &= ~(JOB_RESUME|JOB_CONTINUING);
1574: if (DEBUG(JOB)) {
1.40 espie 1575: (void)fprintf(stdout, "done\n");
1576: (void)fflush(stdout);
1.1 deraadt 1577: }
1578: } else {
1579: Error("couldn't resume %s: %s",
1580: job->node->name, strerror(errno));
1.2 deraadt 1581: status = 0;
1582: W_SETEXITSTATUS(&status, 1);
1583: JobFinish(job, &status);
1.1 deraadt 1584: }
1585: } else {
1586: /*
1587: * Job cannot be restarted. Mark the table as full and
1588: * place the job back on the list of stopped jobs.
1589: */
1590: if (DEBUG(JOB)) {
1.40 espie 1591: (void)fprintf(stdout, "table full\n");
1592: (void)fflush(stdout);
1.1 deraadt 1593: }
1.29 espie 1594: Lst_AtFront(&stoppedJobs, job);
1.41 espie 1595: jobFull = true;
1.1 deraadt 1596: if (DEBUG(JOB)) {
1.40 espie 1597: (void)fprintf(stdout, "Job queue is full.\n");
1598: (void)fflush(stdout);
1.1 deraadt 1599: }
1600: }
1601: }
1602: }
1603:
1604: /*-
1605: *-----------------------------------------------------------------------
1606: * JobStart --
1607: * Start a target-creation process going for the target described
1.6 millert 1608: * by the graph node gn.
1.1 deraadt 1609: *
1610: * Results:
1611: * JOB_ERROR if there was an error in the commands, JOB_FINISHED
1612: * if there isn't actually anything left to do for the job and
1613: * JOB_RUNNING if the job has been started.
1614: *
1615: * Side Effects:
1616: * A new Job node is created and added to the list of running
1617: * jobs. PMake is forked and a child shell created.
1618: *-----------------------------------------------------------------------
1619: */
1620: static int
1.2 deraadt 1621: JobStart(gn, flags, previous)
1.40 espie 1622: GNode *gn; /* target to create */
1623: int flags; /* flags for the job to override normal ones.
1.1 deraadt 1624: * e.g. JOB_SPECIAL or JOB_IGNDOTS */
1625: Job *previous; /* The previous Job structure for this node,
1626: * if any. */
1627: {
1.40 espie 1628: Job *job; /* new job descriptor */
1.1 deraadt 1629: char *argv[4]; /* Argument vector to shell */
1.41 espie 1630: bool cmdsOK; /* true if the nodes commands were all right */
1631: bool local; /* Set true if the job was run locally */
1632: bool noExec; /* Set true if we decide not to run the job */
1.1 deraadt 1633:
1.2 deraadt 1634: if (previous != NULL) {
1635: previous->flags &= ~(JOB_FIRST|JOB_IGNERR|JOB_SILENT|JOB_REMOTE);
1.1 deraadt 1636: job = previous;
1637: } else {
1.40 espie 1638: job = emalloc(sizeof(Job));
1.2 deraadt 1639: if (job == NULL) {
1.1 deraadt 1640: Punt("JobStart out of memory");
1641: }
1642: flags |= JOB_FIRST;
1643: }
1644:
1645: job->node = gn;
1.18 espie 1646: job->tailCmds = NULL;
1.1 deraadt 1647:
1648: /*
1649: * Set the initial value of the flags for this job based on the global
1650: * ones and the node's attributes... Any flags supplied by the caller
1651: * are also added to the field.
1652: */
1653: job->flags = 0;
1.2 deraadt 1654: if (Targ_Ignore(gn)) {
1.1 deraadt 1655: job->flags |= JOB_IGNERR;
1656: }
1.2 deraadt 1657: if (Targ_Silent(gn)) {
1.1 deraadt 1658: job->flags |= JOB_SILENT;
1659: }
1660: job->flags |= flags;
1661:
1662: /*
1663: * Check the commands now so any attributes from .DEFAULT have a chance
1664: * to migrate to the node
1665: */
1.2 deraadt 1666: if (!compatMake && job->flags & JOB_FIRST) {
1.1 deraadt 1667: cmdsOK = Job_CheckCommands(gn, Error);
1668: } else {
1.41 espie 1669: cmdsOK = true;
1.1 deraadt 1670: }
1.6 millert 1671:
1.1 deraadt 1672: /*
1.6 millert 1673: * If the -n flag wasn't given, we open up OUR (not the child's)
1.1 deraadt 1674: * temporary file to stuff commands in it. The thing is rd/wr so we don't
1675: * need to reopen it to feed it to the shell. If the -n flag *was* given,
1676: * we just set the file to be stdout. Cute, huh?
1677: */
1678: if ((gn->type & OP_MAKE) || (!noExecute && !touchFlag)) {
1679: /*
1680: * We're serious here, but if the commands were bogus, we're
1681: * also dead...
1682: */
1683: if (!cmdsOK) {
1684: DieHorribly();
1685: }
1.6 millert 1686:
1.40 espie 1687: job->cmdFILE = fopen(tfile, "w+");
1.2 deraadt 1688: if (job->cmdFILE == NULL) {
1689: Punt("Could not open %s", tfile);
1.1 deraadt 1690: }
1.40 espie 1691: (void)fcntl(FILENO(job->cmdFILE), F_SETFD, 1);
1.1 deraadt 1692: /*
1693: * Send the commands to the command file, flush all its buffers then
1694: * rewind and remove the thing.
1695: */
1.41 espie 1696: noExec = false;
1.1 deraadt 1697:
1698: /*
1699: * used to be backwards; replace when start doing multiple commands
1700: * per shell.
1701: */
1702: if (compatMake) {
1703: /*
1704: * Be compatible: If this is the first time for this node,
1705: * verify its commands are ok and open the commands list for
1706: * sequential access by later invocations of JobStart.
1707: * Once that is done, we take the next command off the list
1708: * and print it to the command file. If the command was an
1709: * ellipsis, note that there's nothing more to execute.
1710: */
1.30 espie 1711: if ((job->flags&JOB_FIRST))
1.40 espie 1712: gn->current = Lst_First(&gn->commands);
1713: else
1714: gn->current = Lst_Succ(gn->current);
1.6 millert 1715:
1.40 espie 1716: if (gn->current == NULL ||
1717: !JobPrintCommand(Lst_Datum(gn->current), job)) {
1.41 espie 1718: noExec = true;
1.40 espie 1719: gn->current = NULL;
1.30 espie 1720: }
1721: if (noExec && !(job->flags & JOB_FIRST)) {
1722: /*
1723: * If we're not going to execute anything, the job
1724: * is done and we need to close down the various
1725: * file descriptors we've opened for output, then
1726: * call JobDoOutput to catch the final characters or
1727: * send the file to the screen... Note that the i/o streams
1728: * are only open if this isn't the first job.
1729: * Note also that this could not be done in
1730: * Job_CatchChildren b/c it wasn't clear if there were
1731: * more commands to execute or not...
1732: */
1733: JobClose(job);
1.1 deraadt 1734: }
1735: } else {
1736: /*
1737: * We can do all the commands at once. hooray for sanity
1738: */
1739: numCommands = 0;
1.29 espie 1740: Lst_Find(&gn->commands, JobPrintCommand, job);
1.6 millert 1741:
1.1 deraadt 1742: /*
1743: * If we didn't print out any commands to the shell script,
1744: * there's not much point in executing the shell, is there?
1745: */
1746: if (numCommands == 0) {
1.41 espie 1747: noExec = true;
1.1 deraadt 1748: }
1749: }
1750: } else if (noExecute) {
1751: /*
1752: * Not executing anything -- just print all the commands to stdout
1753: * in one fell swoop. This will still set up job->tailCmds correctly.
1754: */
1755: if (lastNode != gn) {
1.2 deraadt 1756: MESSAGE(stdout, gn);
1.1 deraadt 1757: lastNode = gn;
1758: }
1759: job->cmdFILE = stdout;
1760: /*
1761: * Only print the commands if they're ok, but don't die if they're
1762: * not -- just let the user know they're bad and keep going. It
1763: * doesn't do any harm in this case and may do some good.
1764: */
1.40 espie 1765: if (cmdsOK) {
1.29 espie 1766: Lst_Find(&gn->commands, JobPrintCommand, job);
1.40 espie 1767: }
1.1 deraadt 1768: /*
1769: * Don't execute the shell, thank you.
1770: */
1.41 espie 1771: noExec = true;
1.1 deraadt 1772: } else {
1773: /*
1774: * Just touch the target and note that no shell should be executed.
1775: * Set cmdFILE to stdout to make life easier. Check the commands, too,
1776: * but don't die if they're no good -- it does no harm to keep working
1777: * up the graph.
1778: */
1779: job->cmdFILE = stdout;
1.40 espie 1780: Job_Touch(gn, job->flags&JOB_SILENT);
1.41 espie 1781: noExec = true;
1.1 deraadt 1782: }
1783:
1784: /*
1.6 millert 1785: * If we're not supposed to execute a shell, don't.
1.1 deraadt 1786: */
1787: if (noExec) {
1788: /*
1789: * Unlink and close the command file if we opened one
1790: */
1791: if (job->cmdFILE != stdout) {
1.40 espie 1792: (void)eunlink(tfile);
1.2 deraadt 1793: if (job->cmdFILE != NULL)
1.40 espie 1794: (void)fclose(job->cmdFILE);
1.1 deraadt 1795: } else {
1.40 espie 1796: (void)fflush(stdout);
1.1 deraadt 1797: }
1798:
1799: /*
1800: * We only want to work our way up the graph if we aren't here because
1801: * the commands for the job were no good.
1802: */
1803: if (cmdsOK) {
1804: if (aborting == 0) {
1.40 espie 1805: Lst_ForEachFrom(job->tailCmds, JobSaveCommand, job->node);
1.1 deraadt 1806: Make_Update(job->node);
1807: }
1.28 espie 1808: free(job);
1809: return JOB_FINISHED;
1.1 deraadt 1810: } else {
1.28 espie 1811: free(job);
1812: return JOB_ERROR;
1.1 deraadt 1813: }
1814: } else {
1.40 espie 1815: (void)fflush(job->cmdFILE);
1816: (void)eunlink(tfile);
1.1 deraadt 1817: }
1818:
1819: /*
1820: * Set up the control arguments to the shell. This is based on the flags
1821: * set earlier for this job.
1822: */
1823: JobMakeArgv(job, argv);
1824:
1825: /*
1826: * If we're using pipes to catch output, create the pipe by which we'll
1827: * get the shell's output. If we're using files, print out that we're
1.7 millert 1828: * starting a job and then set up its temporary-file name.
1.1 deraadt 1829: */
1.2 deraadt 1830: if (!compatMake || (job->flags & JOB_FIRST)) {
1.1 deraadt 1831: if (usePipes) {
1832: int fd[2];
1.2 deraadt 1833: if (pipe(fd) == -1)
1834: Punt("Cannot create pipe: %s", strerror(errno));
1.1 deraadt 1835: job->inPipe = fd[0];
1836: job->outPipe = fd[1];
1.40 espie 1837: (void)fcntl(job->inPipe, F_SETFD, 1);
1838: (void)fcntl(job->outPipe, F_SETFD, 1);
1.1 deraadt 1839: } else {
1.40 espie 1840: (void)fprintf(stdout, "Remaking `%s'\n", gn->name);
1841: (void)fflush(stdout);
1842: (void)strcpy(job->outFile, TMPPAT);
1.7 millert 1843: if ((job->outFd = mkstemp(job->outFile)) == -1)
1844: Punt("Cannot create temp file: %s", strerror(errno));
1.40 espie 1845: (void)fcntl(job->outFd, F_SETFD, 1);
1.1 deraadt 1846: }
1847: }
1848:
1.2 deraadt 1849: #ifdef REMOTE
1850: if (!(gn->type & OP_NOEXPORT) && !(runLocalFirst && nLocal < maxLocal)) {
1851: #ifdef RMT_NO_EXEC
1852: local = !Rmt_Export(shellPath, argv, job);
1853: #else
1854: local = !Rmt_Begin(shellPath, argv, job->node);
1855: #endif /* RMT_NO_EXEC */
1856: if (!local) {
1857: job->flags |= JOB_REMOTE;
1858: }
1859: } else
1860: #endif
1.41 espie 1861: local = true;
1.1 deraadt 1862:
1.40 espie 1863: if (local && nLocal >= maxLocal &&
1.2 deraadt 1864: !(job->flags & JOB_SPECIAL) &&
1865: #ifdef REMOTE
1.40 espie 1866: (!(gn->type & OP_NOEXPORT) || maxLocal != 0)
1.2 deraadt 1867: #else
1.40 espie 1868: maxLocal != 0
1.2 deraadt 1869: #endif
1.40 espie 1870: )
1.1 deraadt 1871: {
1872: /*
1873: * The job can only be run locally, but we've hit the limit of
1874: * local concurrency, so put the job on hold until some other job
1.6 millert 1875: * finishes. Note that the special jobs (.BEGIN, .INTERRUPT and .END)
1.1 deraadt 1876: * may be run locally even when the local limit has been reached
1.6 millert 1877: * (e.g. when maxLocal == 0), though they will be exported if at
1.2 deraadt 1878: * all possible. In addition, any target marked with .NOEXPORT will
1879: * be run locally if maxLocal is 0.
1.1 deraadt 1880: */
1.41 espie 1881: jobFull = true;
1.6 millert 1882:
1.1 deraadt 1883: if (DEBUG(JOB)) {
1.40 espie 1884: (void)fprintf(stdout, "Can only run job locally.\n");
1885: (void)fflush(stdout);
1.1 deraadt 1886: }
1887: job->flags |= JOB_RESTART;
1.29 espie 1888: Lst_AtEnd(&stoppedJobs, job);
1.1 deraadt 1889: } else {
1.40 espie 1890: if (nLocal >= maxLocal && local) {
1.1 deraadt 1891: /*
1.6 millert 1892: * If we're running this job locally as a special case (see above),
1.1 deraadt 1893: * at least say the table is full.
1894: */
1.41 espie 1895: jobFull = true;
1.1 deraadt 1896: if (DEBUG(JOB)) {
1.40 espie 1897: (void)fprintf(stdout, "Local job queue is full.\n");
1898: (void)fflush(stdout);
1.1 deraadt 1899: }
1900: }
1901: JobExec(job, argv);
1902: }
1.40 espie 1903: return JOB_RUNNING;
1.1 deraadt 1904: }
1905:
1.6 millert 1906: static char *
1.2 deraadt 1907: JobOutput(job, cp, endp, msg)
1.40 espie 1908: Job *job;
1909: char *cp, *endp;
1.2 deraadt 1910: int msg;
1911: {
1.40 espie 1912: char *ecp;
1.2 deraadt 1913:
1914: if (commandShell->noPrint) {
1.14 espie 1915: ecp = strstr(cp, commandShell->noPrint);
1.2 deraadt 1916: while (ecp != NULL) {
1917: if (cp != ecp) {
1918: *ecp = '\0';
1919: if (msg && job->node != lastNode) {
1920: MESSAGE(stdout, job->node);
1921: lastNode = job->node;
1922: }
1923: /*
1924: * The only way there wouldn't be a newline after
1925: * this line is if it were the last in the buffer.
1926: * however, since the non-printable comes after it,
1927: * there must be a newline, so we don't print one.
1928: */
1.40 espie 1929: (void)fprintf(stdout, "%s", cp);
1930: (void)fflush(stdout);
1.2 deraadt 1931: }
1932: cp = ecp + commandShell->noPLen;
1933: if (cp != endp) {
1934: /*
1935: * Still more to print, look again after skipping
1936: * the whitespace following the non-printable
1937: * command....
1938: */
1939: cp++;
1940: while (*cp == ' ' || *cp == '\t' || *cp == '\n') {
1941: cp++;
1942: }
1.14 espie 1943: ecp = strstr(cp, commandShell->noPrint);
1.2 deraadt 1944: } else {
1945: return cp;
1946: }
1947: }
1948: }
1949: return cp;
1950: }
1951:
1.1 deraadt 1952: /*-
1953: *-----------------------------------------------------------------------
1.40 espie 1954: * JobDoOutput --
1.1 deraadt 1955: * This function is called at different times depending on
1956: * whether the user has specified that output is to be collected
1957: * via pipes or temporary files. In the former case, we are called
1958: * whenever there is something to read on the pipe. We collect more
1959: * output from the given job and store it in the job's outBuf. If
1960: * this makes up a line, we print it tagged by the job's identifier,
1961: * as necessary.
1962: * If output has been collected in a temporary file, we open the
1963: * file and read it line by line, transfering it to our own
1964: * output channel until the file is empty. At which point we
1965: * remove the temporary file.
1966: * In both cases, however, we keep our figurative eye out for the
1967: * 'noPrint' line for the shell from which the output came. If
1968: * we recognize a line, we don't print it. If the command is not
1.6 millert 1969: * alone on the line (the character after it is not \0 or \n), we
1.1 deraadt 1970: * do print whatever follows it.
1971: *
1972: * Side Effects:
1973: * curPos may be shifted as may the contents of outBuf.
1974: *-----------------------------------------------------------------------
1975: */
1.2 deraadt 1976: STATIC void
1977: JobDoOutput(job, finish)
1.40 espie 1978: Job *job; /* the job whose output needs printing */
1.41 espie 1979: bool finish; /* true if this is the last time we'll be
1.1 deraadt 1980: * called for this job */
1981: {
1.41 espie 1982: bool gotNL = false; /* true if got a newline */
1983: bool fbuf; /* true if our buffer filled up */
1.40 espie 1984: int nr; /* number of bytes read */
1985: int i; /* auxiliary index into outBuf */
1986: int max; /* limit for i (end of current data) */
1987: int nRead; /* (Temporary) number of bytes read */
1.1 deraadt 1988:
1.40 espie 1989: FILE *oFILE; /* Stream pointer to shell's output file */
1990: char inLine[132];
1.1 deraadt 1991:
1.6 millert 1992:
1.1 deraadt 1993: if (usePipes) {
1994: /*
1995: * Read as many bytes as will fit in the buffer.
1996: */
1997: end_loop:
1.41 espie 1998: gotNL = false;
1999: fbuf = false;
1.6 millert 2000:
1.2 deraadt 2001: nRead = read(job->inPipe, &job->outBuf[job->curPos],
1.1 deraadt 2002: JOB_BUFSIZE - job->curPos);
1.40 espie 2003: if (nRead == -1) {
1.1 deraadt 2004: if (DEBUG(JOB)) {
2005: perror("JobDoOutput(piperead)");
2006: }
2007: nr = 0;
2008: } else {
2009: nr = nRead;
2010: }
2011:
2012: /*
1.6 millert 2013: * If we hit the end-of-file (the job is dead), we must flush its
1.1 deraadt 2014: * remaining output, so pretend we read a newline if there's any
2015: * output remaining in the buffer.
2016: * Also clear the 'finish' flag so we stop looping.
2017: */
1.40 espie 2018: if (nr == 0 && job->curPos != 0) {
1.1 deraadt 2019: job->outBuf[job->curPos] = '\n';
2020: nr = 1;
1.41 espie 2021: finish = false;
1.1 deraadt 2022: } else if (nr == 0) {
1.41 espie 2023: finish = false;
1.1 deraadt 2024: }
1.6 millert 2025:
1.1 deraadt 2026: /*
2027: * Look for the last newline in the bytes we just got. If there is
2028: * one, break out of the loop with 'i' as its index and gotNL set
1.41 espie 2029: * true.
1.1 deraadt 2030: */
2031: max = job->curPos + nr;
2032: for (i = job->curPos + nr - 1; i >= job->curPos; i--) {
2033: if (job->outBuf[i] == '\n') {
1.41 espie 2034: gotNL = true;
1.1 deraadt 2035: break;
2036: } else if (job->outBuf[i] == '\0') {
2037: /*
2038: * Why?
2039: */
2040: job->outBuf[i] = ' ';
2041: }
2042: }
1.6 millert 2043:
1.1 deraadt 2044: if (!gotNL) {
2045: job->curPos += nr;
2046: if (job->curPos == JOB_BUFSIZE) {
2047: /*
2048: * If we've run out of buffer space, we have no choice
1.6 millert 2049: * but to print the stuff. sigh.
1.1 deraadt 2050: */
1.41 espie 2051: fbuf = true;
1.1 deraadt 2052: i = job->curPos;
2053: }
2054: }
1.2 deraadt 2055: if (gotNL || fbuf) {
1.1 deraadt 2056: /*
2057: * Need to send the output to the screen. Null terminate it
2058: * first, overwriting the newline character if there was one.
1.6 millert 2059: * So long as the line isn't one we should filter (according
1.1 deraadt 2060: * to the shell description), we print the line, preceeded
2061: * by a target banner if this target isn't the same as the
2062: * one for which we last printed something.
2063: * The rest of the data in the buffer are then shifted down
1.6 millert 2064: * to the start of the buffer and curPos is set accordingly.
1.1 deraadt 2065: */
2066: job->outBuf[i] = '\0';
2067: if (i >= job->curPos) {
1.2 deraadt 2068: char *cp;
1.6 millert 2069:
1.41 espie 2070: cp = JobOutput(job, job->outBuf, &job->outBuf[i], false);
1.1 deraadt 2071:
2072: /*
2073: * There's still more in that thar buffer. This time, though,
2074: * we know there's no newline at the end, so we add one of
2075: * our own free will.
2076: */
2077: if (*cp != '\0') {
2078: if (job->node != lastNode) {
1.2 deraadt 2079: MESSAGE(stdout, job->node);
1.1 deraadt 2080: lastNode = job->node;
2081: }
1.40 espie 2082: (void)fprintf(stdout, "%s%s", cp, gotNL ? "\n" : "");
2083: (void)fflush(stdout);
1.1 deraadt 2084: }
2085: }
2086: if (i < max - 1) {
2087: /* shift the remaining characters down */
1.40 espie 2088: (void)memcpy(job->outBuf, &job->outBuf[i + 1], max - (i + 1));
1.6 millert 2089: job->curPos = max - (i + 1);
2090:
1.1 deraadt 2091: } else {
2092: /*
2093: * We have written everything out, so we just start over
2094: * from the start of the buffer. No copying. No nothing.
2095: */
2096: job->curPos = 0;
2097: }
2098: }
2099: if (finish) {
2100: /*
2101: * If the finish flag is true, we must loop until we hit
1.6 millert 2102: * end-of-file on the pipe. This is guaranteed to happen
2103: * eventually since the other end of the pipe is now closed
2104: * (we closed it explicitly and the child has exited). When
1.41 espie 2105: * we do get an EOF, finish will be set false and we'll fall
1.6 millert 2106: * through and out.
1.1 deraadt 2107: */
2108: goto end_loop;
2109: }
2110: } else {
2111: /*
2112: * We've been called to retrieve the output of the job from the
2113: * temporary file where it's been squirreled away. This consists of
2114: * opening the file, reading the output line by line, being sure not
2115: * to print the noPrint line for the shell we used, then close and
2116: * remove the temporary file. Very simple.
2117: *
2118: * Change to read in blocks and do FindSubString type things as for
2119: * pipes? That would allow for "@echo -n..."
2120: */
1.2 deraadt 2121: oFILE = fopen(job->outFile, "r");
2122: if (oFILE != NULL) {
1.40 espie 2123: (void)fprintf(stdout, "Results of making %s:\n", job->node->name);
2124: (void)fflush(stdout);
1.2 deraadt 2125: while (fgets(inLine, sizeof(inLine), oFILE) != NULL) {
1.40 espie 2126: char *cp, *endp, *oendp;
1.1 deraadt 2127:
2128: cp = inLine;
1.2 deraadt 2129: oendp = endp = inLine + strlen(inLine);
1.1 deraadt 2130: if (endp[-1] == '\n') {
2131: *--endp = '\0';
2132: }
1.41 espie 2133: cp = JobOutput(job, inLine, endp, false);
1.1 deraadt 2134:
2135: /*
2136: * There's still more in that thar buffer. This time, though,
2137: * we know there's no newline at the end, so we add one of
2138: * our own free will.
2139: */
1.40 espie 2140: (void)fprintf(stdout, "%s", cp);
2141: (void)fflush(stdout);
1.2 deraadt 2142: if (endp != oendp) {
1.40 espie 2143: (void)fprintf(stdout, "\n");
2144: (void)fflush(stdout);
1.1 deraadt 2145: }
2146: }
1.40 espie 2147: (void)fclose(oFILE);
2148: (void)eunlink(job->outFile);
1.1 deraadt 2149: }
2150: }
2151: }
2152:
2153: /*-
2154: *-----------------------------------------------------------------------
2155: * Job_CatchChildren --
2156: * Handle the exit of a child. Called from Make_Make.
2157: *
2158: * Side Effects:
2159: * The job descriptor is removed from the list of children.
2160: *
2161: * Notes:
2162: * We do waits, blocking or not, according to the wisdom of our
2163: * caller, until there are no more children to report. For each
2164: * job, call JobFinish to finish things off. This will take care of
2165: * putting jobs on the stoppedJobs queue.
2166: *-----------------------------------------------------------------------
2167: */
2168: void
1.2 deraadt 2169: Job_CatchChildren(block)
1.41 espie 2170: bool block; /* true if should block on the wait. */
1.1 deraadt 2171: {
1.40 espie 2172: int pid; /* pid of dead child */
2173: Job *job; /* job descriptor for dead child */
2174: LstNode jnode; /* list element for finding job */
2175: int status; /* Exit/termination status */
1.1 deraadt 2176:
2177: /*
2178: * Don't even bother if we know there's no one around.
2179: */
2180: if (nLocal == 0) {
2181: return;
2182: }
1.6 millert 2183:
1.2 deraadt 2184: while ((pid = waitpid((pid_t) -1, &status,
2185: (block?0:WNOHANG)|WUNTRACED)) > 0)
1.1 deraadt 2186: {
1.2 deraadt 2187: if (DEBUG(JOB)) {
1.40 espie 2188: (void)fprintf(stdout, "Process %d exited or stopped.\n", pid);
2189: (void)fflush(stdout);
1.2 deraadt 2190: }
1.6 millert 2191:
1.1 deraadt 2192:
1.29 espie 2193: jnode = Lst_Find(&jobs, JobCmpPid, &pid);
1.1 deraadt 2194:
1.18 espie 2195: if (jnode == NULL) {
1.2 deraadt 2196: if (WIFSIGNALED(status) && (WTERMSIG(status) == SIGCONT)) {
1.29 espie 2197: jnode = Lst_Find(&stoppedJobs, JobCmpPid, &pid);
1.18 espie 2198: if (jnode == NULL) {
1.6 millert 2199: Error("Resumed child (%d) not in table", pid);
1.1 deraadt 2200: continue;
2201: }
2202: job = (Job *)Lst_Datum(jnode);
1.29 espie 2203: Lst_Remove(&stoppedJobs, jnode);
1.1 deraadt 2204: } else {
1.6 millert 2205: Error("Child (%d) not in table?", pid);
1.1 deraadt 2206: continue;
2207: }
2208: } else {
1.30 espie 2209: job = (Job *)Lst_Datum(jnode);
1.29 espie 2210: Lst_Remove(&jobs, jnode);
1.1 deraadt 2211: nJobs -= 1;
2212: if (jobFull && DEBUG(JOB)) {
1.40 espie 2213: (void)fprintf(stdout, "Job queue is no longer full.\n");
2214: (void)fflush(stdout);
1.1 deraadt 2215: }
1.41 espie 2216: jobFull = false;
1.2 deraadt 2217: #ifdef REMOTE
2218: if (!(job->flags & JOB_REMOTE)) {
2219: if (DEBUG(JOB)) {
1.40 espie 2220: (void)fprintf(stdout,
1.2 deraadt 2221: "Job queue has one fewer local process.\n");
1.40 espie 2222: (void)fflush(stdout);
1.2 deraadt 2223: }
2224: nLocal -= 1;
2225: }
2226: #else
1.1 deraadt 2227: nLocal -= 1;
1.2 deraadt 2228: #endif
1.1 deraadt 2229: }
2230:
1.2 deraadt 2231: JobFinish(job, &status);
1.1 deraadt 2232: }
2233: }
2234:
2235: /*-
2236: *-----------------------------------------------------------------------
2237: * Job_CatchOutput --
2238: * Catch the output from our children, if we're using
2239: * pipes do so. Otherwise just block time until we get a
1.6 millert 2240: * signal (most likely a SIGCHLD) since there's no point in
1.1 deraadt 2241: * just spinning when there's nothing to do and the reaping
1.6 millert 2242: * of a child can wait for a while.
1.1 deraadt 2243: *
2244: * Side Effects:
2245: * Output is read from pipes if we're piping.
2246: * -----------------------------------------------------------------------
2247: */
2248: void
1.2 deraadt 2249: Job_CatchOutput()
1.1 deraadt 2250: {
1.40 espie 2251: int nfds;
1.1 deraadt 2252: struct timeval timeout;
1.40 espie 2253: LstNode ln;
2254: Job *job;
1.1 deraadt 2255: #ifdef RMT_WILL_WATCH
1.40 espie 2256: int pnJobs; /* Previous nJobs */
1.1 deraadt 2257: #endif
2258:
1.40 espie 2259: (void)fflush(stdout);
1.1 deraadt 2260: #ifdef RMT_WILL_WATCH
2261: pnJobs = nJobs;
2262:
2263: /*
2264: * It is possible for us to be called with nJobs equal to 0. This happens
2265: * if all the jobs finish and a job that is stopped cannot be run
2266: * locally (eg if maxLocal is 0) and cannot be exported. The job will
2267: * be placed back on the stoppedJobs queue, Job_Empty() will return false,
2268: * Make_Run will call us again when there's nothing for which to wait.
2269: * nJobs never changes, so we loop forever. Hence the check. It could
2270: * be argued that we should sleep for a bit so as not to swamp the
2271: * exportation system with requests. Perhaps we should.
2272: *
2273: * NOTE: IT IS THE RESPONSIBILITY OF Rmt_Wait TO CALL Job_CatchChildren
2274: * IN A TIMELY FASHION TO CATCH ANY LOCALLY RUNNING JOBS THAT EXIT.
2275: * It may use the variable nLocal to determine if it needs to call
1.6 millert 2276: * Job_CatchChildren (if nLocal is 0, there's nothing for which to
1.1 deraadt 2277: * wait...)
2278: */
2279: while (nJobs != 0 && pnJobs == nJobs) {
2280: Rmt_Wait();
2281: }
2282: #else
2283: if (usePipes) {
1.8 deraadt 2284: int count = howmany(outputsn+1, NFDBITS) * sizeof(fd_mask);
2285: fd_set *readfdsp = malloc(count);
2286: if (readfdsp == NULL)
2287: return;
2288:
2289: memcpy(readfdsp, outputsp, count);
1.1 deraadt 2290: timeout.tv_sec = SEL_SEC;
2291: timeout.tv_usec = SEL_USEC;
2292:
1.8 deraadt 2293: if ((nfds = select(outputsn+1, readfdsp, (fd_set *) 0,
2294: (fd_set *) 0, &timeout)) <= 0) {
2295: free(readfdsp);
1.1 deraadt 2296: return;
1.8 deraadt 2297: } else {
1.40 espie 2298: for (ln = Lst_First(&jobs); nfds && ln != NULL; ln = Lst_Adv(ln)) {
1.30 espie 2299: job = (Job *)Lst_Datum(ln);
1.8 deraadt 2300: if (FD_ISSET(job->inPipe, readfdsp)) {
1.41 espie 2301: JobDoOutput(job, false);
1.1 deraadt 2302: nfds -= 1;
2303: }
2304: }
2305: }
1.8 deraadt 2306: free(readfdsp);
1.1 deraadt 2307: }
2308: #endif /* RMT_WILL_WATCH */
2309: }
2310:
2311: /*-
2312: *-----------------------------------------------------------------------
2313: * Job_Make --
2314: * Start the creation of a target. Basically a front-end for
2315: * JobStart used by the Make module.
2316: *
2317: * Side Effects:
2318: * Another job is started.
2319: *-----------------------------------------------------------------------
2320: */
2321: void
1.2 deraadt 2322: Job_Make(gn)
1.1 deraadt 2323: GNode *gn;
2324: {
1.40 espie 2325: (void)JobStart(gn, 0, NULL);
1.1 deraadt 2326: }
2327:
2328: /*-
2329: *-----------------------------------------------------------------------
2330: * Job_Init --
2331: * Initialize the process module
2332: *
2333: * Side Effects:
2334: * lists and counters are initialized
2335: *-----------------------------------------------------------------------
2336: */
2337: void
1.2 deraadt 2338: Job_Init(maxproc, maxlocal)
1.40 espie 2339: int maxproc; /* the greatest number of jobs which may be
1.1 deraadt 2340: * running at one time */
1.40 espie 2341: int maxlocal; /* the greatest number of local jobs which may
1.1 deraadt 2342: * be running at once. */
2343: {
1.40 espie 2344: GNode *begin; /* node for commands to do at the very start */
2345: int tfd;
2346:
2347: (void)strcpy(tfile, TMPPAT);
2348: if ((tfd = mkstemp(tfile)) == -1)
2349: Punt("Cannot create temp file: %s", strerror(errno));
2350: else
2351: (void)close(tfd);
1.1 deraadt 2352:
1.46 espie 2353: Static_Lst_Init(&jobs);
2354: Static_Lst_Init(&stoppedJobs);
1.40 espie 2355: maxJobs = maxproc;
2356: maxLocal = maxlocal;
2357: nJobs = 0;
2358: nLocal = 0;
1.41 espie 2359: jobFull = false;
1.1 deraadt 2360:
1.40 espie 2361: aborting = 0;
2362: errors = 0;
1.1 deraadt 2363:
1.18 espie 2364: lastNode = NULL;
1.1 deraadt 2365:
1.2 deraadt 2366: if (maxJobs == 1
2367: #ifdef REMOTE
2368: || noMessages
2369: #endif
2370: ) {
1.1 deraadt 2371: /*
2372: * If only one job can run at a time, there's no need for a banner,
2373: * no is there?
2374: */
2375: targFmt = "";
2376: } else {
2377: targFmt = TARG_FMT;
2378: }
1.6 millert 2379:
1.2 deraadt 2380: if (shellPath == NULL) {
1.1 deraadt 2381: /*
2382: * The user didn't specify a shell to use, so we are using the
2383: * default one... Both the absolute path and the last component
2384: * must be set. The last component is taken from the 'name' field
2385: * of the default shell description pointed-to by commandShell.
2386: * All default shells are located in _PATH_DEFSHELLDIR.
2387: */
2388: shellName = commandShell->name;
1.41 espie 2389: shellPath = Str_concat(_PATH_DEFSHELLDIR, shellName, '/');
1.1 deraadt 2390: }
2391:
1.2 deraadt 2392: if (commandShell->exit == NULL) {
1.1 deraadt 2393: commandShell->exit = "";
2394: }
1.2 deraadt 2395: if (commandShell->echo == NULL) {
1.1 deraadt 2396: commandShell->echo = "";
2397: }
2398:
2399: /*
2400: * Catch the four signals that POSIX specifies if they aren't ignored.
2401: * JobPassSig will take care of calling JobInterrupt if appropriate.
2402: */
1.2 deraadt 2403: if (signal(SIGINT, SIG_IGN) != SIG_IGN) {
1.40 espie 2404: (void)signal(SIGINT, JobPassSig);
1.1 deraadt 2405: }
1.2 deraadt 2406: if (signal(SIGHUP, SIG_IGN) != SIG_IGN) {
1.40 espie 2407: (void)signal(SIGHUP, JobPassSig);
1.1 deraadt 2408: }
1.2 deraadt 2409: if (signal(SIGQUIT, SIG_IGN) != SIG_IGN) {
1.40 espie 2410: (void)signal(SIGQUIT, JobPassSig);
1.1 deraadt 2411: }
1.2 deraadt 2412: if (signal(SIGTERM, SIG_IGN) != SIG_IGN) {
1.40 espie 2413: (void)signal(SIGTERM, JobPassSig);
1.1 deraadt 2414: }
2415: /*
2416: * There are additional signals that need to be caught and passed if
2417: * either the export system wants to be told directly of signals or if
1.6 millert 2418: * we're giving each job its own process group (since then it won't get
1.1 deraadt 2419: * signals from the terminal driver as we own the terminal)
2420: */
2421: #if defined(RMT_WANTS_SIGNALS) || defined(USE_PGRP)
1.2 deraadt 2422: if (signal(SIGTSTP, SIG_IGN) != SIG_IGN) {
1.40 espie 2423: (void)signal(SIGTSTP, JobPassSig);
1.1 deraadt 2424: }
1.2 deraadt 2425: if (signal(SIGTTOU, SIG_IGN) != SIG_IGN) {
1.40 espie 2426: (void)signal(SIGTTOU, JobPassSig);
1.1 deraadt 2427: }
1.2 deraadt 2428: if (signal(SIGTTIN, SIG_IGN) != SIG_IGN) {
1.40 espie 2429: (void)signal(SIGTTIN, JobPassSig);
1.1 deraadt 2430: }
1.2 deraadt 2431: if (signal(SIGWINCH, SIG_IGN) != SIG_IGN) {
1.40 espie 2432: (void)signal(SIGWINCH, JobPassSig);
1.1 deraadt 2433: }
2434: #endif
1.6 millert 2435:
1.41 espie 2436: begin = Targ_FindNode(".BEGIN", TARG_NOCREATE);
1.1 deraadt 2437:
1.18 espie 2438: if (begin != NULL) {
1.2 deraadt 2439: JobStart(begin, JOB_SPECIAL, (Job *)0);
1.1 deraadt 2440: while (nJobs) {
2441: Job_CatchOutput();
2442: #ifndef RMT_WILL_WATCH
1.2 deraadt 2443: Job_CatchChildren(!usePipes);
1.1 deraadt 2444: #endif /* RMT_WILL_WATCH */
2445: }
2446: }
1.41 espie 2447: postCommands = Targ_FindNode(".END", TARG_CREATE);
1.1 deraadt 2448: }
2449:
2450: /*-
2451: *-----------------------------------------------------------------------
2452: * Job_Full --
2453: * See if the job table is full. It is considered full if it is OR
2454: * if we are in the process of aborting OR if we have
2455: * reached/exceeded our local quota. This prevents any more jobs
2456: * from starting up.
2457: *
2458: * Results:
1.41 espie 2459: * true if the job table is full, false otherwise
1.1 deraadt 2460: *-----------------------------------------------------------------------
2461: */
1.41 espie 2462: bool
1.2 deraadt 2463: Job_Full()
1.1 deraadt 2464: {
1.40 espie 2465: return aborting || jobFull;
1.1 deraadt 2466: }
2467:
2468: /*-
2469: *-----------------------------------------------------------------------
2470: * Job_Empty --
1.40 espie 2471: * See if the job table is empty. Because the local concurrency may
1.1 deraadt 2472: * be set to 0, it is possible for the job table to become empty,
2473: * while the list of stoppedJobs remains non-empty. In such a case,
2474: * we want to restart as many jobs as we can.
2475: *
2476: * Results:
1.41 espie 2477: * true if it is. false if it ain't.
1.1 deraadt 2478: * -----------------------------------------------------------------------
2479: */
1.41 espie 2480: bool
1.2 deraadt 2481: Job_Empty()
1.1 deraadt 2482: {
2483: if (nJobs == 0) {
1.29 espie 2484: if (!Lst_IsEmpty(&stoppedJobs) && !aborting) {
1.1 deraadt 2485: /*
2486: * The job table is obviously not full if it has no jobs in
2487: * it...Try and restart the stopped jobs.
2488: */
1.41 espie 2489: jobFull = false;
1.2 deraadt 2490: JobRestartJobs();
1.41 espie 2491: return false;
1.1 deraadt 2492: } else {
1.41 espie 2493: return true;
1.1 deraadt 2494: }
2495: } else {
1.41 espie 2496: return false;
1.1 deraadt 2497: }
2498: }
2499:
2500: /*-
2501: *-----------------------------------------------------------------------
2502: * JobMatchShell --
2503: * Find a matching shell in 'shells' given its final component.
2504: *
2505: * Results:
2506: * A pointer to the Shell structure.
2507: *-----------------------------------------------------------------------
2508: */
2509: static Shell *
1.2 deraadt 2510: JobMatchShell(name)
1.1 deraadt 2511: char *name; /* Final component of shell path */
2512: {
1.40 espie 2513: Shell *sh; /* Pointer into shells table */
2514: Shell *match; /* Longest-matching shell */
2515: char *cp1,
1.1 deraadt 2516: *cp2;
2517: char *eoname;
2518:
1.2 deraadt 2519: eoname = name + strlen(name);
1.1 deraadt 2520:
1.2 deraadt 2521: match = NULL;
1.1 deraadt 2522:
2523: for (sh = shells; sh->name != NULL; sh++) {
1.2 deraadt 2524: for (cp1 = eoname - strlen(sh->name), cp2 = sh->name;
1.1 deraadt 2525: *cp1 != '\0' && *cp1 == *cp2;
2526: cp1++, cp2++) {
2527: continue;
2528: }
2529: if (*cp1 != *cp2) {
2530: continue;
1.2 deraadt 2531: } else if (match == NULL || strlen(match->name) < strlen(sh->name)) {
2532: match = sh;
1.1 deraadt 2533: }
2534: }
1.40 espie 2535: return match == NULL ? sh : match;
1.1 deraadt 2536: }
2537:
2538: /*-
2539: *-----------------------------------------------------------------------
2540: * Job_ParseShell --
2541: * Parse a shell specification and set up commandShell, shellPath
2542: * and shellName appropriately.
2543: *
2544: * Results:
1.41 espie 2545: * false if the specification was incorrect.
1.1 deraadt 2546: *
2547: * Side Effects:
2548: * commandShell points to a Shell structure (either predefined or
2549: * created from the shell spec), shellPath is the full path of the
2550: * shell described by commandShell, while shellName is just the
2551: * final component of shellPath.
2552: *
2553: * Notes:
2554: * A shell specification consists of a .SHELL target, with dependency
2555: * operator, followed by a series of blank-separated words. Double
2556: * quotes can be used to use blanks in words. A backslash escapes
2557: * anything (most notably a double-quote and a space) and
2558: * provides the functionality it does in C. Each word consists of
2559: * keyword and value separated by an equal sign. There should be no
2560: * unnecessary spaces in the word. The keywords are as follows:
1.40 espie 2561: * name Name of shell.
2562: * path Location of shell. Overrides "name" if given
2563: * quiet Command to turn off echoing.
2564: * echo Command to turn echoing on
1.1 deraadt 2565: * filter Result of turning off echoing that shouldn't be
1.40 espie 2566: * printed.
1.1 deraadt 2567: * echoFlag Flag to turn echoing on at the start
2568: * errFlag Flag to turn error checking on at the start
2569: * hasErrCtl True if shell has error checking control
1.40 espie 2570: * check Command to turn on error checking if hasErrCtl
1.41 espie 2571: * is true or template of command to echo a command
1.40 espie 2572: * for which error checking is off if hasErrCtl is
1.41 espie 2573: * false.
1.1 deraadt 2574: * ignore Command to turn off error checking if hasErrCtl
1.41 espie 2575: * is true or template of command to execute a
1.40 espie 2576: * command so as to ignore any errors it returns if
1.41 espie 2577: * hasErrCtl is false.
1.1 deraadt 2578: *-----------------------------------------------------------------------
2579: */
1.41 espie 2580: bool
1.2 deraadt 2581: Job_ParseShell(line)
1.1 deraadt 2582: char *line; /* The shell spec */
2583: {
1.40 espie 2584: char **words;
2585: int wordCount;
2586: char **argv;
2587: int argc;
2588: char *path;
2589: Shell newShell;
1.41 espie 2590: bool fullSpec = false;
1.1 deraadt 2591:
1.2 deraadt 2592: while (isspace(*line)) {
1.1 deraadt 2593: line++;
2594: }
1.12 espie 2595:
2596: efree(shellArgv);
1.40 espie 2597:
2598: words = brk_string(line, &wordCount, &shellArgv);
1.1 deraadt 2599:
1.28 espie 2600: memset(&newShell, 0, sizeof(newShell));
1.6 millert 2601:
1.1 deraadt 2602: /*
2603: * Parse the specification by keyword
2604: */
1.12 espie 2605: for (path = NULL, argc = wordCount - 1, argv = words;
1.1 deraadt 2606: argc != 0;
2607: argc--, argv++) {
1.2 deraadt 2608: if (strncmp(*argv, "path=", 5) == 0) {
1.1 deraadt 2609: path = &argv[0][5];
1.2 deraadt 2610: } else if (strncmp(*argv, "name=", 5) == 0) {
1.1 deraadt 2611: newShell.name = &argv[0][5];
2612: } else {
1.2 deraadt 2613: if (strncmp(*argv, "quiet=", 6) == 0) {
1.1 deraadt 2614: newShell.echoOff = &argv[0][6];
1.2 deraadt 2615: } else if (strncmp(*argv, "echo=", 5) == 0) {
1.1 deraadt 2616: newShell.echoOn = &argv[0][5];
1.2 deraadt 2617: } else if (strncmp(*argv, "filter=", 7) == 0) {
1.1 deraadt 2618: newShell.noPrint = &argv[0][7];
2619: newShell.noPLen = strlen(newShell.noPrint);
1.2 deraadt 2620: } else if (strncmp(*argv, "echoFlag=", 9) == 0) {
1.1 deraadt 2621: newShell.echo = &argv[0][9];
1.2 deraadt 2622: } else if (strncmp(*argv, "errFlag=", 8) == 0) {
1.1 deraadt 2623: newShell.exit = &argv[0][8];
1.2 deraadt 2624: } else if (strncmp(*argv, "hasErrCtl=", 10) == 0) {
1.1 deraadt 2625: char c = argv[0][10];
1.40 espie 2626: newShell.hasErrCtl = !(c != 'Y' && c != 'y' &&
2627: c != 'T' && c != 't');
1.2 deraadt 2628: } else if (strncmp(*argv, "check=", 6) == 0) {
1.1 deraadt 2629: newShell.errCheck = &argv[0][6];
1.2 deraadt 2630: } else if (strncmp(*argv, "ignore=", 7) == 0) {
1.1 deraadt 2631: newShell.ignErr = &argv[0][7];
2632: } else {
1.2 deraadt 2633: Parse_Error(PARSE_FATAL, "Unknown keyword \"%s\"",
1.1 deraadt 2634: *argv);
1.12 espie 2635: free(words);
1.41 espie 2636: return false;
1.1 deraadt 2637: }
1.41 espie 2638: fullSpec = true;
1.1 deraadt 2639: }
2640: }
2641:
1.2 deraadt 2642: if (path == NULL) {
1.1 deraadt 2643: /*
2644: * If no path was given, the user wants one of the pre-defined shells,
2645: * yes? So we find the one s/he wants with the help of JobMatchShell
2646: * and set things up the right way. shellPath will be set up by
2647: * Job_Init.
2648: */
1.2 deraadt 2649: if (newShell.name == NULL) {
2650: Parse_Error(PARSE_FATAL, "Neither path nor name specified");
1.41 espie 2651: return false;
1.1 deraadt 2652: } else {
1.2 deraadt 2653: commandShell = JobMatchShell(newShell.name);
1.1 deraadt 2654: shellName = newShell.name;
2655: }
2656: } else {
2657: /*
1.6 millert 2658: * The user provided a path. If s/he gave nothing else (fullSpec is
1.41 espie 2659: * false), try and find a matching shell in the ones we know of.
1.1 deraadt 2660: * Else we just take the specification at its word and copy it
2661: * to a new location. In either case, we need to record the
2662: * path the user gave for the shell.
2663: */
2664: shellPath = path;
1.2 deraadt 2665: path = strrchr(path, '/');
2666: if (path == NULL) {
1.1 deraadt 2667: path = shellPath;
2668: } else {
2669: path += 1;
2670: }
1.2 deraadt 2671: if (newShell.name != NULL) {
1.1 deraadt 2672: shellName = newShell.name;
2673: } else {
2674: shellName = path;
2675: }
2676: if (!fullSpec) {
1.2 deraadt 2677: commandShell = JobMatchShell(shellName);
1.1 deraadt 2678: } else {
1.40 espie 2679: commandShell = emalloc(sizeof(Shell));
1.1 deraadt 2680: *commandShell = newShell;
2681: }
2682: }
2683:
2684: if (commandShell->echoOn && commandShell->echoOff) {
1.41 espie 2685: commandShell->hasEchoCtl = true;
1.1 deraadt 2686: }
1.6 millert 2687:
1.1 deraadt 2688: if (!commandShell->hasErrCtl) {
1.2 deraadt 2689: if (commandShell->errCheck == NULL) {
1.1 deraadt 2690: commandShell->errCheck = "";
2691: }
1.2 deraadt 2692: if (commandShell->ignErr == NULL) {
1.1 deraadt 2693: commandShell->ignErr = "%s\n";
2694: }
2695: }
1.6 millert 2696:
1.1 deraadt 2697: /*
2698: * Do not free up the words themselves, since they might be in use by the
2699: * shell specification...
2700: */
1.2 deraadt 2701: free(words);
1.41 espie 2702: return true;
1.1 deraadt 2703: }
2704:
2705: /*-
2706: *-----------------------------------------------------------------------
2707: * JobInterrupt --
2708: * Handle the receipt of an interrupt.
2709: *
2710: * Side Effects:
2711: * All children are killed. Another job will be started if the
2712: * .INTERRUPT target was given.
2713: *-----------------------------------------------------------------------
2714: */
2715: static void
1.2 deraadt 2716: JobInterrupt(runINTERRUPT, signo)
1.40 espie 2717: int runINTERRUPT; /* Non-zero if commands for the .INTERRUPT
1.1 deraadt 2718: * target should be executed */
1.40 espie 2719: int signo; /* signal received */
1.1 deraadt 2720: {
1.40 espie 2721: LstNode ln; /* element in job table */
2722: Job *job; /* job descriptor in that element */
2723: GNode *interrupt; /* the node describing the .INTERRUPT target */
1.6 millert 2724:
1.1 deraadt 2725: aborting = ABORT_INTERRUPT;
2726:
1.40 espie 2727: for (ln = Lst_First(&jobs); ln != NULL; ln = Lst_Adv(ln)) {
1.30 espie 2728: job = (Job *)Lst_Datum(ln);
1.1 deraadt 2729:
1.2 deraadt 2730: if (!Targ_Precious(job->node)) {
1.40 espie 2731: const char *file = job->node->path == NULL ?
1.1 deraadt 2732: job->node->name :
1.40 espie 2733: job->node->path;
1.2 deraadt 2734: if (!noExecute && eunlink(file) != -1) {
2735: Error("*** %s removed", file);
1.1 deraadt 2736: }
2737: }
2738: #ifdef RMT_WANTS_SIGNALS
2739: if (job->flags & JOB_REMOTE) {
2740: /*
2741: * If job is remote, let the Rmt module do the killing.
2742: */
1.2 deraadt 2743: if (!Rmt_Signal(job, signo)) {
1.1 deraadt 2744: /*
2745: * If couldn't kill the thing, finish it out now with an
2746: * error code, since no exit report will come in likely.
2747: */
1.2 deraadt 2748: int status;
1.1 deraadt 2749:
2750: status.w_status = 0;
2751: status.w_retcode = 1;
1.2 deraadt 2752: JobFinish(job, &status);
1.1 deraadt 2753: }
2754: } else if (job->pid) {
1.2 deraadt 2755: KILL(job->pid, signo);
1.1 deraadt 2756: }
2757: #else
2758: if (job->pid) {
1.2 deraadt 2759: if (DEBUG(JOB)) {
1.40 espie 2760: (void)fprintf(stdout,
1.6 millert 2761: "JobInterrupt passing signal to child %d.\n",
1.2 deraadt 2762: job->pid);
1.40 espie 2763: (void)fflush(stdout);
1.2 deraadt 2764: }
2765: KILL(job->pid, signo);
2766: }
2767: #endif /* RMT_WANTS_SIGNALS */
2768: }
2769:
2770: #ifdef REMOTE
1.40 espie 2771: for (ln = Lst_First(&stoppedJobs); ln != NULL; ln = Lst_Adv(ln)) {
1.30 espie 2772: job = (Job *)Lst_Datum(ln);
1.2 deraadt 2773:
2774: if (job->flags & JOB_RESTART) {
2775: if (DEBUG(JOB)) {
1.40 espie 2776: (void)fprintf(stdout, "%s%s",
1.2 deraadt 2777: "JobInterrupt skipping job on stopped queue",
2778: "-- it was waiting to be restarted.\n");
1.40 espie 2779: (void)fflush(stdout);
1.2 deraadt 2780: }
2781: continue;
2782: }
2783: if (!Targ_Precious(job->node)) {
1.40 espie 2784: char *file = job->node->path == NULL ?
1.2 deraadt 2785: job->node->name :
1.40 espie 2786: job->node->path;
1.2 deraadt 2787: if (eunlink(file) == 0) {
2788: Error("*** %s removed", file);
2789: }
2790: }
2791: /*
2792: * Resume the thing so it will take the signal.
2793: */
2794: if (DEBUG(JOB)) {
1.40 espie 2795: (void)fprintf(stdout,
1.6 millert 2796: "JobInterrupt passing CONT to stopped child %d.\n",
1.2 deraadt 2797: job->pid);
1.40 espie 2798: (void)fflush(stdout);
1.2 deraadt 2799: }
2800: KILL(job->pid, SIGCONT);
2801: #ifdef RMT_WANTS_SIGNALS
2802: if (job->flags & JOB_REMOTE) {
2803: /*
2804: * If job is remote, let the Rmt module do the killing.
2805: */
2806: if (!Rmt_Signal(job, SIGINT)) {
2807: /*
2808: * If couldn't kill the thing, finish it out now with an
2809: * error code, since no exit report will come in likely.
2810: */
2811: int status;
2812: status.w_status = 0;
2813: status.w_retcode = 1;
2814: JobFinish(job, &status);
2815: }
2816: } else if (job->pid) {
2817: if (DEBUG(JOB)) {
1.40 espie 2818: (void)fprintf(stdout,
1.2 deraadt 2819: "JobInterrupt passing interrupt to stopped child %d.\n",
2820: job->pid);
1.40 espie 2821: (void)fflush(stdout);
1.2 deraadt 2822: }
1.1 deraadt 2823: KILL(job->pid, SIGINT);
2824: }
2825: #endif /* RMT_WANTS_SIGNALS */
2826: }
1.2 deraadt 2827: #endif
1.1 deraadt 2828:
2829: if (runINTERRUPT && !touchFlag) {
1.41 espie 2830: interrupt = Targ_FindNode(".INTERRUPT", TARG_NOCREATE);
1.18 espie 2831: if (interrupt != NULL) {
1.41 espie 2832: ignoreErrors = false;
1.1 deraadt 2833:
1.2 deraadt 2834: JobStart(interrupt, JOB_IGNDOTS, (Job *)0);
1.1 deraadt 2835: while (nJobs) {
2836: Job_CatchOutput();
2837: #ifndef RMT_WILL_WATCH
1.2 deraadt 2838: Job_CatchChildren(!usePipes);
1.1 deraadt 2839: #endif /* RMT_WILL_WATCH */
2840: }
2841: }
2842: }
1.40 espie 2843: (void)eunlink(tfile);
1.2 deraadt 2844: exit(signo);
1.1 deraadt 2845: }
2846:
2847: /*
2848: *-----------------------------------------------------------------------
1.12 espie 2849: * Job_Finish --
1.1 deraadt 2850: * Do final processing such as the running of the commands
1.6 millert 2851: * attached to the .END target.
1.1 deraadt 2852: *
2853: * Results:
2854: * Number of errors reported.
1.40 espie 2855: *
2856: * Side Effects:
2857: * The process' temporary file (tfile) is removed if it still
2858: * existed.
1.1 deraadt 2859: *-----------------------------------------------------------------------
2860: */
2861: int
1.12 espie 2862: Job_Finish()
1.1 deraadt 2863: {
1.29 espie 2864: if (postCommands != NULL && !Lst_IsEmpty(&postCommands->commands)) {
1.1 deraadt 2865: if (errors) {
1.2 deraadt 2866: Error("Errors reported so .END ignored");
1.1 deraadt 2867: } else {
1.2 deraadt 2868: JobStart(postCommands, JOB_SPECIAL | JOB_IGNDOTS, NULL);
1.1 deraadt 2869:
2870: while (nJobs) {
2871: Job_CatchOutput();
2872: #ifndef RMT_WILL_WATCH
1.2 deraadt 2873: Job_CatchChildren(!usePipes);
1.1 deraadt 2874: #endif /* RMT_WILL_WATCH */
2875: }
2876: }
2877: }
1.40 espie 2878: (void)eunlink(tfile);
2879: return errors;
1.1 deraadt 2880: }
2881:
1.12 espie 2882: /*-
2883: *-----------------------------------------------------------------------
2884: * Job_End --
2885: * Cleanup any memory used by the jobs module
2886: *
2887: * Side Effects:
2888: * Memory is freed
2889: *-----------------------------------------------------------------------
2890: */
1.41 espie 2891: #ifdef CLEANUP
1.12 espie 2892: void
2893: Job_End()
2894: {
2895: efree(shellArgv);
1.41 espie 2896: }
1.13 espie 2897: #endif
1.40 espie 2898:
1.1 deraadt 2899: /*-
2900: *-----------------------------------------------------------------------
2901: * Job_Wait --
2902: * Waits for all running jobs to finish and returns. Sets 'aborting'
2903: * to ABORT_WAIT to prevent other jobs from starting.
2904: *
2905: * Side Effects:
2906: * Currently running jobs finish.
2907: *
2908: *-----------------------------------------------------------------------
2909: */
2910: void
2911: Job_Wait()
2912: {
2913: aborting = ABORT_WAIT;
2914: while (nJobs != 0) {
2915: Job_CatchOutput();
2916: #ifndef RMT_WILL_WATCH
2917: Job_CatchChildren(!usePipes);
2918: #endif /* RMT_WILL_WATCH */
2919: }
2920: aborting = 0;
2921: }
2922:
2923: /*-
2924: *-----------------------------------------------------------------------
2925: * Job_AbortAll --
2926: * Abort all currently running jobs without handling output or anything.
2927: * This function is to be called only in the event of a major
2928: * error. Most definitely NOT to be called from JobInterrupt.
2929: *
2930: * Side Effects:
2931: * All children are killed, not just the firstborn
2932: *-----------------------------------------------------------------------
2933: */
2934: void
1.2 deraadt 2935: Job_AbortAll()
1.1 deraadt 2936: {
1.40 espie 2937: LstNode ln; /* element in job table */
2938: Job *job; /* the job descriptor in that element */
2939: int foo;
1.6 millert 2940:
1.1 deraadt 2941: aborting = ABORT_ERROR;
1.6 millert 2942:
1.1 deraadt 2943: if (nJobs) {
1.40 espie 2944: for (ln = Lst_First(&jobs); ln != NULL; ln = Lst_Adv(ln)) {
1.30 espie 2945: job = (Job *)Lst_Datum(ln);
1.1 deraadt 2946:
2947: /*
2948: * kill the child process with increasingly drastic signals to make
1.6 millert 2949: * darn sure it's dead.
1.1 deraadt 2950: */
2951: #ifdef RMT_WANTS_SIGNALS
2952: if (job->flags & JOB_REMOTE) {
2953: Rmt_Signal(job, SIGINT);
2954: Rmt_Signal(job, SIGKILL);
2955: } else {
2956: KILL(job->pid, SIGINT);
2957: KILL(job->pid, SIGKILL);
2958: }
2959: #else
2960: KILL(job->pid, SIGINT);
2961: KILL(job->pid, SIGKILL);
2962: #endif /* RMT_WANTS_SIGNALS */
2963: }
2964: }
1.6 millert 2965:
1.1 deraadt 2966: /*
2967: * Catch as many children as want to report in at first, then give up
2968: */
1.2 deraadt 2969: while (waitpid((pid_t) -1, &foo, WNOHANG) > 0)
1.1 deraadt 2970: continue;
1.40 espie 2971: (void)eunlink(tfile);
1.2 deraadt 2972: }
2973:
2974: #ifdef REMOTE
2975: /*-
2976: *-----------------------------------------------------------------------
2977: * JobFlagForMigration --
2978: * Handle the eviction of a child. Called from RmtStatusChange.
2979: * Flags the child as remigratable and then suspends it.
2980: *
2981: * Side Effects:
2982: * The job descriptor is flagged for remigration.
2983: *-----------------------------------------------------------------------
2984: */
2985: void
2986: JobFlagForMigration(hostID)
1.40 espie 2987: int hostID; /* ID of host we used, for matching children. */
1.2 deraadt 2988: {
1.40 espie 2989: Job *job; /* job descriptor for dead child */
2990: LstNode jnode; /* list element for finding job */
1.2 deraadt 2991:
2992: if (DEBUG(JOB)) {
1.40 espie 2993: (void)fprintf(stdout, "JobFlagForMigration(%d) called.\n", hostID);
2994: (void)fflush(stdout);
1.2 deraadt 2995: }
1.29 espie 2996: jnode = Lst_Find(&jobs, JobCmpRmtID, &hostID);
1.2 deraadt 2997:
1.18 espie 2998: if (jnode == NULL) {
1.29 espie 2999: jnode = Lst_Find(&stoppedJobs, JobCmpRmtID, &hostID);
1.18 espie 3000: if (jnode == NULL) {
1.2 deraadt 3001: if (DEBUG(JOB)) {
3002: Error("Evicting host(%d) not in table", hostID);
3003: }
3004: return;
3005: }
3006: }
1.30 espie 3007: job = (Job *)Lst_Datum(jnode);
1.2 deraadt 3008:
3009: if (DEBUG(JOB)) {
1.40 espie 3010: (void)fprintf(stdout,
1.2 deraadt 3011: "JobFlagForMigration(%d) found job '%s'.\n", hostID,
3012: job->node->name);
1.40 espie 3013: (void)fflush(stdout);
1.2 deraadt 3014: }
3015:
3016: KILL(job->pid, SIGSTOP);
3017:
3018: job->flags |= JOB_REMIGRATE;
3019: }
3020:
3021: #endif
1.40 espie 3022:
1.2 deraadt 3023: /*-
3024: *-----------------------------------------------------------------------
3025: * JobRestartJobs --
3026: * Tries to restart stopped jobs if there are slots available.
3027: * Note that this tries to restart them regardless of pending errors.
3028: * It's not good to leave stopped jobs lying around!
3029: *
3030: * Side Effects:
3031: * Resumes(and possibly migrates) jobs.
3032: *-----------------------------------------------------------------------
3033: */
3034: static void
3035: JobRestartJobs()
3036: {
1.19 espie 3037: Job *job;
3038:
1.40 espie 3039: while (!jobFull && (job = (Job *)Lst_DeQueue(&stoppedJobs)) != NULL) {
1.2 deraadt 3040: if (DEBUG(JOB)) {
1.40 espie 3041: (void)fprintf(stdout,
1.2 deraadt 3042: "Job queue is not full. Restarting a stopped job.\n");
1.40 espie 3043: (void)fflush(stdout);
1.2 deraadt 3044: }
1.19 espie 3045: JobRestart(job);
1.2 deraadt 3046: }
1.1 deraadt 3047: }
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