[src/trunk]: src/usr.bin/make make(1): rename JobClose to JobClosePipes, remo...

[rillig <rillig%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/80a07f9f8ae9
branches:  trunk
changeset: 942659:80a07f9f8ae9
user:      rillig <rillig%NetBSD.org@localhost>
date:      Sat Nov 14 13:45:34 2020 +0000

description:
make(1): rename JobClose to JobClosePipes, remove confusing comments

The comments referred to w_status, which had been there in 1993, but not
anymore.  Several other details were outdated as well.

diffstat:

 usr.bin/make/job.c |  49 +++++++++++++++----------------------------------
 1 files changed, 15 insertions(+), 34 deletions(-)

diffs (104 lines):

diff -r 7900fbc3f041 -r 80a07f9f8ae9 usr.bin/make/job.c
--- a/usr.bin/make/job.c        Sat Nov 14 13:27:01 2020 +0000
+++ b/usr.bin/make/job.c        Sat Nov 14 13:45:34 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: job.c,v 1.319 2020/11/14 13:27:01 rillig Exp $ */
+/*     $NetBSD: job.c,v 1.320 2020/11/14 13:45:34 rillig Exp $ */
 
 /*
  * Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
@@ -143,7 +143,7 @@
 #include "trace.h"
 
 /*     "@(#)job.c      8.2 (Berkeley) 3/19/94" */
-MAKE_RCSID("$NetBSD: job.c,v 1.319 2020/11/14 13:27:01 rillig Exp $");
+MAKE_RCSID("$NetBSD: job.c,v 1.320 2020/11/14 13:45:34 rillig Exp $");
 
 /* A shell defines how the commands are run.  All commands for a target are
  * written into a single file, which is then given to the shell to execute
@@ -720,7 +720,7 @@
  *     If the command is just "..." we take all future commands for this
  *     job to be commands to be executed once the entire graph has been
  *     made and return non-zero to signal that the end of the commands
- *     was reached. These commands are later attached to the postCommands
+ *     was reached. These commands are later attached to the .END
  *     node and executed by Job_End when all things are done.
  *
  * Side Effects:
@@ -936,7 +936,7 @@
 
 /* Called to close both input and output pipes when a job is finished. */
 static void
-JobClose(Job *job)
+JobClosePipes(Job *job)
 {
     clearfd(job);
     (void)close(job->outPipe);
@@ -947,28 +947,17 @@
     job->inPipe = -1;
 }
 
-/*-
- *-----------------------------------------------------------------------
- * JobFinish  --
- *     Do final processing for the given job including updating
- *     parents and starting new jobs as available/necessary. Note
- *     that we pay no attention to the JOB_IGNERR flag here.
- *     This is because when we're called because of a noexecute flag
- *     or something, jstat.w_status is 0 and when called from
- *     Job_CatchChildren, the status is zeroed if it s/b ignored.
+/* Do final processing for the given job including updating parent nodes and
+ * starting new jobs as available/necessary.
+ *
+ * Deferred commands for the job are placed on the .END node.
+ *
+ * If there was a serious error (errors != 0; not an ignored one), no more
+ * jobs will be started.
  *
  * Input:
  *     job             job to finish
  *     status          sub-why job went away
- *
- * Side Effects:
- *     Final commands for the job are placed on postCommands.
- *
- *     If we got an error and are aborting (aborting == ABORT_ERROR) and
- *     the job list is now empty, we are done for the day.
- *     If we recognized an error (errors !=0), we set the aborting flag
- *     to ABORT_ERROR so no more jobs will be started.
- *-----------------------------------------------------------------------
  */
 static void
 JobFinish(Job *job, int status)
@@ -990,7 +979,7 @@
         * cases, finish out the job's output before printing the exit
         * status...
         */
-       JobClose(job);
+       JobClosePipes(job);
        if (job->cmdFILE != NULL && job->cmdFILE != stdout) {
           (void)fclose(job->cmdFILE);
           job->cmdFILE = NULL;
@@ -999,19 +988,11 @@
     } else if (WIFEXITED(status)) {
        /*
         * Deal with ignored errors in -B mode. We need to print a message
-        * telling of the ignored error as well as setting status.w_status
-        * to 0 so the next command gets run. To do this, we set done to be
-        * TRUE if in -B mode and the job exited non-zero.
+        * telling of the ignored error as well as to run the next command.
+        *
         */
        done = WEXITSTATUS(status) != 0;
-       /*
-        * Old comment said: "Note we don't
-        * want to close down any of the streams until we know we're at the
-        * end."
-        * But we do. Otherwise when are we going to print the rest of the
-        * stuff?
-        */
-       JobClose(job);
+       JobClosePipes(job);
     } else {
        /*
         * No need to close things down or anything.