xref: /curl/tests/runner.pm (revision 5b94eced)
1#***************************************************************************
2#                                  _   _ ____  _
3#  Project                     ___| | | |  _ \| |
4#                             / __| | | | |_) | |
5#                            | (__| |_| |  _ <| |___
6#                             \___|\___/|_| \_\_____|
7#
8# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
9#
10# This software is licensed as described in the file COPYING, which
11# you should have received as part of this distribution. The terms
12# are also available at https://curl.se/docs/copyright.html.
13#
14# You may opt to use, copy, modify, merge, publish, distribute and/or sell
15# copies of the Software, and permit persons to whom the Software is
16# furnished to do so, under the terms of the COPYING file.
17#
18# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19# KIND, either express or implied.
20#
21# SPDX-License-Identifier: curl
22#
23###########################################################################
24
25# This module contains entry points to run a single test. runner_init
26# determines whether they will run in a separate process or in the process of
27# the caller. The relevant interface is asynchronous so it will work in either
28# case. Program arguments are marshalled and then written to the end of a pipe
29# (in controlleripccall) which is later read from and the arguments
30# unmarshalled (in ipcrecv) before the desired function is called normally.
31# The function return values are then marshalled and written into another pipe
32# (again in ipcrecv) when is later read from and unmarshalled (in runnerar)
33# before being returned to the caller.
34
35package runner;
36
37use strict;
38use warnings;
39use 5.006;
40
41BEGIN {
42    use base qw(Exporter);
43
44    our @EXPORT = qw(
45        checktestcmd
46        prepro
47        readtestkeywords
48        restore_test_env
49        runner_init
50        runnerac_clearlocks
51        runnerac_shutdown
52        runnerac_stopservers
53        runnerac_test_preprocess
54        runnerac_test_run
55        runnerar
56        runnerar_ready
57        stderrfilename
58        stdoutfilename
59        $DBGCURL
60        $gdb
61        $gdbthis
62        $gdbxwin
63        $shallow
64        $tortalloc
65        $valgrind_logfile
66        $valgrind_tool
67    );
68
69    # these are for debugging only
70    our @EXPORT_OK = qw(
71        singletest_preprocess
72    );
73}
74
75use B qw(
76    svref_2object
77    );
78use Storable qw(
79    freeze
80    thaw
81    );
82
83use pathhelp qw(
84    exe_ext
85    );
86use processhelp qw(
87    portable_sleep
88    );
89use servers qw(
90    checkcmd
91    clearlocks
92    initserverconfig
93    serverfortest
94    stopserver
95    stopservers
96    subvariables
97    );
98use getpart;
99use globalconfig;
100use testutil qw(
101    clearlogs
102    logmsg
103    runclient
104    shell_quote
105    subbase64
106    subnewlines
107    );
108use valgrind;
109
110
111#######################################################################
112# Global variables set elsewhere but used only by this package
113# These may only be set *before* runner_init is called
114our $DBGCURL=$CURL; #"../src/.libs/curl";  # alternative for debugging
115our $valgrind_logfile="--log-file";  # the option name for valgrind >=3
116our $valgrind_tool="--tool=memcheck";
117our $gdb = checktestcmd("gdb");
118our $gdbthis = 0;  # run test case with debugger (gdb or lldb)
119our $gdbxwin;      # use windowed gdb when using gdb
120
121# torture test variables
122our $shallow;
123our $tortalloc;
124
125# local variables
126my %oldenv;       # environment variables before test is started
127my $UNITDIR="./unit";
128my $CURLLOG="$LOGDIR/commands.log"; # all command lines run
129my $defserverlogslocktimeout = 5; # timeout to await server logs lock removal
130my $defpostcommanddelay = 0; # delay between command and postcheck sections
131my $multiprocess;   # nonzero with a separate test runner process
132
133# pipes
134my $runnerr;        # pipe that runner reads from
135my $runnerw;        # pipe that runner writes to
136
137# per-runner variables, indexed by runner ID; these are used by controller only
138my %controllerr;    # pipe that controller reads from
139my %controllerw;    # pipe that controller writes to
140
141# redirected stdout/stderr to these files
142sub stdoutfilename {
143    my ($logdir, $testnum)=@_;
144    return "$logdir/stdout$testnum";
145}
146
147sub stderrfilename {
148    my ($logdir, $testnum)=@_;
149    return "$logdir/stderr$testnum";
150}
151
152#######################################################################
153# Initialize the runner and prepare it to run tests
154# The runner ID returned by this function must be passed into the other
155# runnerac_* functions
156# Called by controller
157sub runner_init {
158    my ($logdir, $jobs)=@_;
159
160    $multiprocess = !!$jobs;
161
162    # enable memory debugging if curl is compiled with it
163    $ENV{'CURL_MEMDEBUG'} = "$logdir/$MEMDUMP";
164    $ENV{'CURL_ENTROPY'}="12345678";
165    $ENV{'CURL_FORCETIME'}=1; # for debug NTLM magic
166    $ENV{'CURL_GLOBAL_INIT'}=1; # debug curl_global_init/cleanup use
167    $ENV{'HOME'}=$pwd;
168    $ENV{'CURL_HOME'}=$ENV{'HOME'};
169    $ENV{'XDG_CONFIG_HOME'}=$ENV{'HOME'};
170    $ENV{'COLUMNS'}=79; # screen width!
171
172    # Incorporate the $logdir into the random seed and re-seed the PRNG.
173    # This gives each runner a unique yet consistent seed which provides
174    # more unique port number selection in each runner, yet is deterministic
175    # across runs.
176    $randseed += unpack('%16C*', $logdir);
177    srand $randseed;
178
179    # create pipes for communication with runner
180    my ($thisrunnerr, $thiscontrollerw, $thiscontrollerr, $thisrunnerw);
181    pipe $thisrunnerr, $thiscontrollerw;
182    pipe $thiscontrollerr, $thisrunnerw;
183
184    my $thisrunnerid;
185    if($multiprocess) {
186        # Create a separate process in multiprocess mode
187        my $child = fork();
188        if(0 == $child) {
189            # TODO: set up better signal handlers
190            $SIG{INT} = 'IGNORE';
191            $SIG{TERM} = 'IGNORE';
192            eval {
193                # some msys2 perl versions don't define SIGUSR1
194                $SIG{USR1} = 'IGNORE';
195            };
196
197            $thisrunnerid = $$;
198            print "Runner $thisrunnerid starting\n" if($verbose);
199
200            # Here we are the child (runner).
201            close($thiscontrollerw);
202            close($thiscontrollerr);
203            $runnerr = $thisrunnerr;
204            $runnerw = $thisrunnerw;
205
206            # Set this directory as ours
207            $LOGDIR = $logdir;
208            mkdir("$LOGDIR/$PIDDIR", 0777);
209            mkdir("$LOGDIR/$LOCKDIR", 0777);
210
211            # Initialize various server variables
212            initserverconfig();
213
214            # handle IPC calls
215            event_loop();
216
217            # Can't rely on logmsg here in case it's buffered
218            print "Runner $thisrunnerid exiting\n" if($verbose);
219
220            # To reach this point, either the controller has sent
221            # runnerac_stopservers() and runnerac_shutdown() or we have called
222            # runnerabort(). In both cases, there are no more of our servers
223            # running and we can safely exit.
224            exit 0;
225        }
226
227        # Here we are the parent (controller).
228        close($thisrunnerw);
229        close($thisrunnerr);
230
231        $thisrunnerid = $child;
232
233    } else {
234        # Create our pid directory
235        mkdir("$LOGDIR/$PIDDIR", 0777);
236
237        # Don't create a separate process
238        $thisrunnerid = "integrated";
239    }
240
241    $controllerw{$thisrunnerid} = $thiscontrollerw;
242    $runnerr = $thisrunnerr;
243    $runnerw = $thisrunnerw;
244    $controllerr{$thisrunnerid} = $thiscontrollerr;
245
246    return $thisrunnerid;
247}
248
249#######################################################################
250# Loop to execute incoming IPC calls until the shutdown call
251sub event_loop {
252    while () {
253        if(ipcrecv()) {
254            last;
255        }
256    }
257}
258
259#######################################################################
260# Check for a command in the PATH of the machine running curl.
261#
262sub checktestcmd {
263    my ($cmd)=@_;
264    my @testpaths=("$LIBDIR/.libs", "$LIBDIR");
265    return checkcmd($cmd, @testpaths);
266}
267
268# See if Valgrind should actually be used
269sub use_valgrind {
270    if($valgrind) {
271        my @valgrindoption = getpart("verify", "valgrind");
272        if((!@valgrindoption) || ($valgrindoption[0] !~ /disable/)) {
273            return 1;
274        }
275    }
276    return 0;
277}
278
279# Massage the command result code into a useful form
280sub normalize_cmdres {
281    my $cmdres = $_[0];
282    my $signal_num  = $cmdres & 127;
283    my $dumped_core = $cmdres & 128;
284
285    if(!$anyway && ($signal_num || $dumped_core)) {
286        $cmdres = 1000;
287    }
288    else {
289        $cmdres >>= 8;
290        $cmdres = (2000 + $signal_num) if($signal_num && !$cmdres);
291    }
292    return ($cmdres, $dumped_core);
293}
294
295# 'prepro' processes the input array and replaces %-variables in the array
296# etc. Returns the processed version of the array
297sub prepro {
298    my $testnum = shift;
299    my (@entiretest) = @_;
300    my $show = 1;
301    my @out;
302    my $data_crlf;
303    my @pshow;
304    my @altshow;
305    my $plvl;
306    my $line;
307    for my $s (@entiretest) {
308        my $f = $s;
309        $line++;
310        if($s =~ /^ *%if (.*)/) {
311            my $cond = $1;
312            my $rev = 0;
313
314            if($cond =~ /^!(.*)/) {
315                $cond = $1;
316                $rev = 1;
317            }
318            $rev ^= $feature{$cond} ? 1 : 0;
319            push @pshow, $show; # push the previous state
320            $plvl++;
321            if($show) {
322                # only if this was showing before we can allow the alternative
323                # to go showing as well
324                push @altshow, $rev ^ 1; # push the reversed show state
325            }
326            else {
327                push @altshow, 0; # the alt should still hide
328            }
329            if($show) {
330                # we only allow show if already showing
331                $show = $rev;
332            }
333            next;
334        }
335        elsif($s =~ /^ *%else/) {
336            if(!$plvl) {
337                print STDERR "error: test$testnum:$line: %else no %if\n";
338                last;
339            }
340            $show = pop @altshow;
341            push @altshow, $show; # put it back for consistency
342            next;
343        }
344        elsif($s =~ /^ *%endif/) {
345            if(!$plvl--) {
346                print STDERR "error: test$testnum:$line: %endif had no %if\n";
347                last;
348            }
349            $show = pop @pshow;
350            pop @altshow; # not used here but we must pop it
351            next;
352        }
353        if($show) {
354            # The processor does CRLF replacements in the <data*> sections if
355            # necessary since those parts might be read by separate servers.
356            if($s =~ /^ *<data(.*)\>/) {
357                if($1 =~ /crlf="yes"/ ||
358                   ($feature{"hyper"} && ($keywords{"HTTP"} || $keywords{"HTTPS"}))) {
359                    $data_crlf = 1;
360                }
361            }
362            elsif(($s =~ /^ *<\/data/) && $data_crlf) {
363                $data_crlf = 0;
364            }
365            subvariables(\$s, $testnum, "%");
366            subbase64(\$s);
367            subnewlines(0, \$s) if($data_crlf);
368            push @out, $s;
369        }
370    }
371    return @out;
372}
373
374
375#######################################################################
376# Load test keywords into %keywords hash
377#
378sub readtestkeywords {
379    my @info_keywords = getpart("info", "keywords");
380
381    # Clear the list of keywords from the last test
382    %keywords = ();
383    for my $k (@info_keywords) {
384        chomp $k;
385        $keywords{$k} = 1;
386    }
387}
388
389
390#######################################################################
391# Return a list of log locks that still exist
392#
393sub logslocked {
394    opendir(my $lockdir, "$LOGDIR/$LOCKDIR");
395    my @locks;
396    foreach (readdir $lockdir) {
397        if(/^(.*)\.lock$/) {
398            push @locks, $1;
399        }
400    }
401    return @locks;
402}
403
404#######################################################################
405# Memory allocation test and failure torture testing.
406#
407sub torture {
408    my ($testcmd, $testnum, $gdbline) = @_;
409
410    # remove memdump first to be sure we get a new nice and clean one
411    unlink("$LOGDIR/$MEMDUMP");
412
413    # First get URL from test server, ignore the output/result
414    runclient($testcmd);
415
416    logmsg " CMD: $testcmd\n" if($verbose);
417
418    # memanalyze -v is our friend, get the number of allocations made
419    my $count=0;
420    my @out = `$memanalyze -v "$LOGDIR/$MEMDUMP"`;
421    for(@out) {
422        if(/^Operations: (\d+)/) {
423            $count = $1;
424            last;
425        }
426    }
427    if(!$count) {
428        logmsg " found no functions to make fail\n";
429        return 0;
430    }
431
432    my @ttests = (1 .. $count);
433    if($shallow && ($shallow < $count)) {
434        my $discard = scalar(@ttests) - $shallow;
435        my $percent = sprintf("%.2f%%", $shallow * 100 / scalar(@ttests));
436        logmsg " $count functions found, but only fail $shallow ($percent)\n";
437        while($discard) {
438            my $rm;
439            do {
440                # find a test to discard
441                $rm = rand(scalar(@ttests));
442            } while(!$ttests[$rm]);
443            $ttests[$rm] = undef;
444            $discard--;
445        }
446    }
447    else {
448        logmsg " $count functions to make fail\n";
449    }
450
451    for (@ttests) {
452        my $limit = $_;
453        my $fail;
454        my $dumped_core;
455
456        if(!defined($limit)) {
457            # --shallow can undefine them
458            next;
459        }
460        if($tortalloc && ($tortalloc != $limit)) {
461            next;
462        }
463
464        if($verbose) {
465            my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) =
466                localtime(time());
467            my $now = sprintf("%02d:%02d:%02d ", $hour, $min, $sec);
468            logmsg "Fail function no: $limit at $now\r";
469        }
470
471        # make the memory allocation function number $limit return failure
472        $ENV{'CURL_MEMLIMIT'} = $limit;
473
474        # remove memdump first to be sure we get a new nice and clean one
475        unlink("$LOGDIR/$MEMDUMP");
476
477        my $cmd = $testcmd;
478        if($valgrind && !$gdbthis) {
479            my @valgrindoption = getpart("verify", "valgrind");
480            if((!@valgrindoption) || ($valgrindoption[0] !~ /disable/)) {
481                my $valgrindcmd = "$valgrind ";
482                $valgrindcmd .= "$valgrind_tool " if($valgrind_tool);
483                $valgrindcmd .= "--quiet --leak-check=yes ";
484                $valgrindcmd .= "--suppressions=$srcdir/valgrind.supp ";
485                # $valgrindcmd .= "--gen-suppressions=all ";
486                $valgrindcmd .= "--num-callers=16 ";
487                $valgrindcmd .= "${valgrind_logfile}=$LOGDIR/valgrind$testnum";
488                $cmd = "$valgrindcmd $testcmd";
489            }
490        }
491        logmsg "*** Function number $limit is now set to fail ***\n" if($gdbthis);
492
493        my $ret = 0;
494        if($gdbthis) {
495            runclient($gdbline);
496        }
497        else {
498            $ret = runclient($cmd);
499        }
500        #logmsg "$_ Returned " . ($ret >> 8) . "\n";
501
502        # Now clear the variable again
503        delete $ENV{'CURL_MEMLIMIT'} if($ENV{'CURL_MEMLIMIT'});
504
505        if(-r "core") {
506            # there's core file present now!
507            logmsg " core dumped\n";
508            $dumped_core = 1;
509            $fail = 2;
510        }
511
512        if($valgrind) {
513            my @e = valgrindparse("$LOGDIR/valgrind$testnum");
514            if(@e && $e[0]) {
515                if($automakestyle) {
516                    logmsg "FAIL: torture $testnum - valgrind\n";
517                }
518                else {
519                    logmsg " valgrind ERROR ";
520                    logmsg @e;
521                }
522                $fail = 1;
523            }
524        }
525
526        # verify that it returns a proper error code, doesn't leak memory
527        # and doesn't core dump
528        if(($ret & 255) || ($ret >> 8) >= 128) {
529            logmsg " system() returned $ret\n";
530            $fail=1;
531        }
532        else {
533            my @memdata=`$memanalyze "$LOGDIR/$MEMDUMP"`;
534            my $leak=0;
535            for(@memdata) {
536                if($_ ne "") {
537                    # well it could be other memory problems as well, but
538                    # we call it leak for short here
539                    $leak=1;
540                }
541            }
542            if($leak) {
543                logmsg "** MEMORY FAILURE\n";
544                logmsg @memdata;
545                logmsg `$memanalyze -l "$LOGDIR/$MEMDUMP"`;
546                $fail = 1;
547            }
548        }
549        if($fail) {
550            logmsg " $testnum: torture FAILED: function number $limit in test.\n",
551            " invoke with \"-t$limit\" to repeat this single case.\n";
552            stopservers($verbose);
553            return 1;
554        }
555    }
556
557    logmsg "\n" if($verbose);
558    logmsg "torture OK\n";
559    return 0;
560}
561
562
563#######################################################################
564# restore environment variables that were modified in test
565sub restore_test_env {
566    my $deleteoldenv = $_[0];   # 1 to delete the saved contents after restore
567    foreach my $var (keys %oldenv) {
568        if($oldenv{$var} eq 'notset') {
569            delete $ENV{$var} if($ENV{$var});
570        }
571        else {
572            $ENV{$var} = $oldenv{$var};
573        }
574        if($deleteoldenv) {
575            delete $oldenv{$var};
576        }
577    }
578}
579
580
581#######################################################################
582# Start the servers needed to run this test case
583sub singletest_startservers {
584    my ($testnum, $testtimings) = @_;
585
586    # remove old test server files before servers are started/verified
587    unlink("$LOGDIR/$SERVERCMD");
588    unlink("$LOGDIR/$SERVERIN");
589    unlink("$LOGDIR/$PROXYIN");
590
591    # timestamp required servers verification start
592    $$testtimings{"timesrvrini"} = Time::HiRes::time();
593
594    my $why;
595    my $error;
596    if (!$listonly) {
597        my @what = getpart("client", "server");
598        if(!$what[0]) {
599            warn "Test case $testnum has no server(s) specified";
600            $why = "no server specified";
601            $error = -1;
602        } else {
603            my $err;
604            ($why, $err) = serverfortest(@what);
605            if($err == 1) {
606                # Error indicates an actual problem starting the server
607                $error = -2;
608            } else {
609                $error = -1;
610            }
611        }
612    }
613
614    # timestamp required servers verification end
615    $$testtimings{"timesrvrend"} = Time::HiRes::time();
616
617    return ($why, $error);
618}
619
620
621#######################################################################
622# Generate preprocessed test file
623sub singletest_preprocess {
624    my $testnum = $_[0];
625
626    # Save a preprocessed version of the entire test file. This allows more
627    # "basic" test case readers to enjoy variable replacements.
628    my @entiretest = fulltest();
629    my $otest = "$LOGDIR/test$testnum";
630
631    @entiretest = prepro($testnum, @entiretest);
632
633    # save the new version
634    open(my $fulltesth, ">", "$otest") || die "Failure writing test file";
635    foreach my $bytes (@entiretest) {
636        print $fulltesth pack('a*', $bytes) or die "Failed to print '$bytes': $!";
637    }
638    close($fulltesth) || die "Failure writing test file";
639
640    # in case the process changed the file, reload it
641    loadtest("$LOGDIR/test${testnum}");
642}
643
644
645#######################################################################
646# Set up the test environment to run this test case
647sub singletest_setenv {
648    my @setenv = getpart("client", "setenv");
649    foreach my $s (@setenv) {
650        chomp $s;
651        if($s =~ /([^=]*)(.*)/) {
652            my ($var, $content) = ($1, $2);
653            # remember current setting, to restore it once test runs
654            $oldenv{$var} = ($ENV{$var})?"$ENV{$var}":'notset';
655
656            if($content =~ /^=(.*)/) {
657                # assign it
658                $content = $1;
659
660                if($var =~ /^LD_PRELOAD/) {
661                    if(exe_ext('TOOL') && (exe_ext('TOOL') eq '.exe')) {
662                        logmsg "Skipping LD_PRELOAD due to lack of OS support\n" if($verbose);
663                        next;
664                    }
665                    if($feature{"debug"} || !$has_shared) {
666                        logmsg "Skipping LD_PRELOAD due to no release shared build\n" if($verbose);
667                        next;
668                    }
669                }
670                $ENV{$var} = "$content";
671                logmsg "setenv $var = $content\n" if($verbose);
672            }
673            else {
674                # remove it
675                delete $ENV{$var} if($ENV{$var});
676            }
677
678        }
679    }
680    if($proxy_address) {
681        $ENV{http_proxy} = $proxy_address;
682        $ENV{HTTPS_PROXY} = $proxy_address;
683    }
684}
685
686
687#######################################################################
688# Check that test environment is fine to run this test case
689sub singletest_precheck {
690    my $testnum = $_[0];
691    my $why;
692    my @precheck = getpart("client", "precheck");
693    if(@precheck) {
694        my $cmd = $precheck[0];
695        chomp $cmd;
696        if($cmd) {
697            my @p = split(/ /, $cmd);
698            if($p[0] !~ /\//) {
699                # the first word, the command, does not contain a slash so
700                # we will scan the "improved" PATH to find the command to
701                # be able to run it
702                my $fullp = checktestcmd($p[0]);
703
704                if($fullp) {
705                    $p[0] = $fullp;
706                }
707                $cmd = join(" ", @p);
708            }
709
710            my @o = `$cmd 2> $LOGDIR/precheck-$testnum`;
711            if($o[0]) {
712                $why = $o[0];
713                $why =~ s/[\r\n]//g;
714            }
715            elsif($?) {
716                $why = "precheck command error";
717            }
718            logmsg "prechecked $cmd\n" if($verbose);
719        }
720    }
721    return $why;
722}
723
724
725#######################################################################
726# Prepare the test environment to run this test case
727sub singletest_prepare {
728    my ($testnum) = @_;
729
730    if($feature{"TrackMemory"}) {
731        unlink("$LOGDIR/$MEMDUMP");
732    }
733    unlink("core");
734
735    # remove server output logfiles after servers are started/verified
736    unlink("$LOGDIR/$SERVERIN");
737    unlink("$LOGDIR/$PROXYIN");
738
739    # if this section exists, it might be FTP server instructions:
740    my @ftpservercmd = getpart("reply", "servercmd");
741    push @ftpservercmd, "Testnum $testnum\n";
742    # write the instructions to file
743    writearray("$LOGDIR/$SERVERCMD", \@ftpservercmd);
744
745    # create (possibly-empty) files before starting the test
746    for my $partsuffix (('', '1', '2', '3', '4')) {
747        my @inputfile=getpart("client", "file".$partsuffix);
748        my %fileattr = getpartattr("client", "file".$partsuffix);
749        my $filename=$fileattr{'name'};
750        if(@inputfile || $filename) {
751            if(!$filename) {
752                logmsg " $testnum: IGNORED: section client=>file has no name attribute\n";
753                return -1;
754            }
755            my $fileContent = join('', @inputfile);
756
757            # make directories if needed
758            my $path = $filename;
759            # cut off the file name part
760            $path =~ s/^(.*)\/[^\/]*/$1/;
761            my @ldparts = split(/\//, $LOGDIR);
762            my $nparts = @ldparts;
763            my @parts = split(/\//, $path);
764            if(join("/", @parts[0..$nparts-1]) eq $LOGDIR) {
765                # the file is in $LOGDIR/
766                my $d = shift @parts;
767                for(@parts) {
768                    $d .= "/$_";
769                    mkdir $d; # 0777
770                }
771            }
772            if (open(my $outfile, ">", "$filename")) {
773                binmode $outfile; # for crapage systems, use binary
774                if($fileattr{'nonewline'}) {
775                    # cut off the final newline
776                    chomp($fileContent);
777                }
778                print $outfile $fileContent;
779                close($outfile);
780            } else {
781                logmsg "ERROR: cannot write $filename\n";
782            }
783        }
784    }
785    return 0;
786}
787
788
789#######################################################################
790# Run the test command
791sub singletest_run {
792    my ($testnum, $testtimings) = @_;
793
794    # get the command line options to use
795    my ($cmd, @blaha)= getpart("client", "command");
796    if($cmd) {
797        # make some nice replace operations
798        $cmd =~ s/\n//g; # no newlines please
799        # substitute variables in the command line
800    }
801    else {
802        # there was no command given, use something silly
803        $cmd="-";
804    }
805
806    my $CURLOUT="$LOGDIR/curl$testnum.out"; # curl output if not stdout
807
808    # if stdout section exists, we verify that the stdout contained this:
809    my $out="";
810    my %cmdhash = getpartattr("client", "command");
811    if((!$cmdhash{'option'}) || ($cmdhash{'option'} !~ /no-output/)) {
812        #We may slap on --output!
813        if (!partexists("verify", "stdout") ||
814                ($cmdhash{'option'} && $cmdhash{'option'} =~ /force-output/)) {
815            $out=" --output $CURLOUT ";
816        }
817    }
818
819    my @codepieces = getpart("client", "tool");
820    my $tool="";
821    if(@codepieces) {
822        $tool = $codepieces[0];
823        chomp $tool;
824        $tool .= exe_ext('TOOL');
825    }
826
827    my $disablevalgrind;
828    my $CMDLINE="";
829    my $cmdargs;
830    my $cmdtype = $cmdhash{'type'} || "default";
831    my $fail_due_event_based = $run_event_based;
832    if($cmdtype eq "perl") {
833        # run the command line prepended with "perl"
834        $cmdargs ="$cmd";
835        $CMDLINE = "$perl ";
836        $tool=$CMDLINE;
837        $disablevalgrind=1;
838    }
839    elsif($cmdtype eq "shell") {
840        # run the command line prepended with "/bin/sh"
841        $cmdargs ="$cmd";
842        $CMDLINE = "/bin/sh ";
843        $tool=$CMDLINE;
844        $disablevalgrind=1;
845    }
846    elsif(!$tool && !$keywords{"unittest"}) {
847        # run curl, add suitable command line options
848        my $inc="";
849        if((!$cmdhash{'option'}) || ($cmdhash{'option'} !~ /no-include/)) {
850            $inc = " --include";
851        }
852        $cmdargs = "$out$inc ";
853
854        if($cmdhash{'option'} && ($cmdhash{'option'} =~ /binary-trace/)) {
855            $cmdargs .= "--trace $LOGDIR/trace$testnum ";
856        }
857        else {
858            $cmdargs .= "--trace-ascii $LOGDIR/trace$testnum ";
859        }
860        $cmdargs .= "--trace-time ";
861        if($run_event_based) {
862            $cmdargs .= "--test-event ";
863            $fail_due_event_based--;
864        }
865        $cmdargs .= $cmd;
866        if ($proxy_address) {
867            $cmdargs .= " --proxy $proxy_address ";
868        }
869    }
870    else {
871        $cmdargs = " $cmd"; # $cmd is the command line for the test file
872        $CURLOUT = stdoutfilename($LOGDIR, $testnum); # sends received data to stdout
873
874        # Default the tool to a unit test with the same name as the test spec
875        if($keywords{"unittest"} && !$tool) {
876            $tool="unit$testnum";
877        }
878
879        if($tool =~ /^lib/) {
880            $CMDLINE="$LIBDIR/$tool";
881        }
882        elsif($tool =~ /^unit/) {
883            $CMDLINE="$UNITDIR/$tool";
884        }
885
886        if(! -f $CMDLINE) {
887            logmsg " $testnum: IGNORED: The tool set in the test case for this: '$tool' does not exist\n";
888            return (-1, 0, 0, "", "", 0);
889        }
890        $DBGCURL=$CMDLINE;
891    }
892
893    if($fail_due_event_based) {
894        logmsg " $testnum: IGNORED: This test cannot run event based\n";
895        return (-1, 0, 0, "", "", 0);
896    }
897
898    if($gdbthis) {
899        # gdb is incompatible with valgrind, so disable it when debugging
900        # Perhaps a better approach would be to run it under valgrind anyway
901        # with --db-attach=yes or --vgdb=yes.
902        $disablevalgrind=1;
903    }
904
905    my @stdintest = getpart("client", "stdin");
906
907    if(@stdintest) {
908        my $stdinfile="$LOGDIR/stdin-for-$testnum";
909
910        my %hash = getpartattr("client", "stdin");
911        if($hash{'nonewline'}) {
912            # cut off the final newline from the final line of the stdin data
913            chomp($stdintest[-1]);
914        }
915
916        writearray($stdinfile, \@stdintest);
917
918        $cmdargs .= " <$stdinfile";
919    }
920
921    if(!$tool) {
922        $CMDLINE=shell_quote($CURL);
923        if((!$cmdhash{'option'}) || ($cmdhash{'option'} !~ /no-q/)) {
924            $CMDLINE .= " -q";
925        }
926    }
927
928    if(use_valgrind() && !$disablevalgrind) {
929        my $valgrindcmd = "$valgrind ";
930        $valgrindcmd .= "$valgrind_tool " if($valgrind_tool);
931        $valgrindcmd .= "--quiet --leak-check=yes ";
932        $valgrindcmd .= "--suppressions=$srcdir/valgrind.supp ";
933        # $valgrindcmd .= "--gen-suppressions=all ";
934        $valgrindcmd .= "--num-callers=16 ";
935        $valgrindcmd .= "${valgrind_logfile}=$LOGDIR/valgrind$testnum";
936        $CMDLINE = "$valgrindcmd $CMDLINE";
937    }
938
939    $CMDLINE .= "$cmdargs > " . stdoutfilename($LOGDIR, $testnum) .
940                " 2> " . stderrfilename($LOGDIR, $testnum);
941
942    if($verbose) {
943        logmsg "$CMDLINE\n";
944    }
945
946    open(my $cmdlog, ">", $CURLLOG) || die "Failure writing log file";
947    print $cmdlog "$CMDLINE\n";
948    close($cmdlog) || die "Failure writing log file";
949
950    my $dumped_core;
951    my $cmdres;
952
953    if($gdbthis) {
954        my $gdbinit = "$TESTDIR/gdbinit$testnum";
955        open(my $gdbcmd, ">", "$LOGDIR/gdbcmd") || die "Failure writing gdb file";
956        if($gdbthis == 1) {
957            # gdb mode
958            print $gdbcmd "set args $cmdargs\n";
959            print $gdbcmd "show args\n";
960            print $gdbcmd "source $gdbinit\n" if -e $gdbinit;
961        }
962        else {
963            # lldb mode
964            print $gdbcmd "set args $cmdargs\n";
965        }
966        close($gdbcmd) || die "Failure writing gdb file";
967    }
968
969    # Flush output.
970    $| = 1;
971
972    # timestamp starting of test command
973    $$testtimings{"timetoolini"} = Time::HiRes::time();
974
975    # run the command line we built
976    if ($torture) {
977        $cmdres = torture($CMDLINE,
978                          $testnum,
979                          "$gdb --directory $LIBDIR " . shell_quote($DBGCURL) . " -x $LOGDIR/gdbcmd");
980    }
981    elsif($gdbthis == 1) {
982        # gdb
983        my $GDBW = ($gdbxwin) ? "-w" : "";
984        runclient("$gdb --directory $LIBDIR " . shell_quote($DBGCURL) . " $GDBW -x $LOGDIR/gdbcmd");
985        $cmdres=0; # makes it always continue after a debugged run
986    }
987    elsif($gdbthis == 2) {
988        # $gdb is "lldb"
989        print "runs lldb -- $CURL $cmdargs\n";
990        runclient("lldb -- $CURL $cmdargs");
991        $cmdres=0; # makes it always continue after a debugged run
992    }
993    else {
994        # Convert the raw result code into a more useful one
995        ($cmdres, $dumped_core) = normalize_cmdres(runclient("$CMDLINE"));
996    }
997
998    # timestamp finishing of test command
999    $$testtimings{"timetoolend"} = Time::HiRes::time();
1000
1001    return (0, $cmdres, $dumped_core, $CURLOUT, $tool, use_valgrind() && !$disablevalgrind);
1002}
1003
1004
1005#######################################################################
1006# Clean up after test command
1007sub singletest_clean {
1008    my ($testnum, $dumped_core, $testtimings)=@_;
1009
1010    if(!$dumped_core) {
1011        if(-r "core") {
1012            # there's core file present now!
1013            $dumped_core = 1;
1014        }
1015    }
1016
1017    if($dumped_core) {
1018        logmsg "core dumped\n";
1019        if(0 && $gdb) {
1020            logmsg "running gdb for post-mortem analysis:\n";
1021            open(my $gdbcmd, ">", "$LOGDIR/gdbcmd2") || die "Failure writing gdb file";
1022            print $gdbcmd "bt\n";
1023            close($gdbcmd) || die "Failure writing gdb file";
1024            runclient("$gdb --directory libtest -x $LOGDIR/gdbcmd2 -batch " . shell_quote($DBGCURL) . " core ");
1025     #       unlink("$LOGDIR/gdbcmd2");
1026        }
1027    }
1028
1029    # If a server logs advisor read lock file exists, it is an indication
1030    # that the server has not yet finished writing out all its log files,
1031    # including server request log files used for protocol verification.
1032    # So, if the lock file exists the script waits here a certain amount
1033    # of time until the server removes it, or the given time expires.
1034    my $serverlogslocktimeout = $defserverlogslocktimeout;
1035    my %cmdhash = getpartattr("client", "command");
1036    if($cmdhash{'timeout'}) {
1037        # test is allowed to override default server logs lock timeout
1038        if($cmdhash{'timeout'} =~ /(\d+)/) {
1039            $serverlogslocktimeout = $1 if($1 >= 0);
1040        }
1041    }
1042    if($serverlogslocktimeout) {
1043        my $lockretry = $serverlogslocktimeout * 20;
1044        my @locks;
1045        while((@locks = logslocked()) && $lockretry--) {
1046            portable_sleep(0.05);
1047        }
1048        if(($lockretry < 0) &&
1049           ($serverlogslocktimeout >= $defserverlogslocktimeout)) {
1050            logmsg "Warning: server logs lock timeout ",
1051                   "($serverlogslocktimeout seconds) expired (locks: " .
1052                   join(", ", @locks) . ")\n";
1053        }
1054    }
1055
1056    # Test harness ssh server does not have this synchronization mechanism,
1057    # this implies that some ssh server based tests might need a small delay
1058    # once that the client command has run to avoid false test failures.
1059    #
1060    # gnutls-serv also lacks this synchronization mechanism, so gnutls-serv
1061    # based tests might need a small delay once that the client command has
1062    # run to avoid false test failures.
1063    my $postcommanddelay = $defpostcommanddelay;
1064    if($cmdhash{'delay'}) {
1065        # test is allowed to specify a delay after command is executed
1066        if($cmdhash{'delay'} =~ /(\d+)/) {
1067            $postcommanddelay = $1 if($1 > 0);
1068        }
1069    }
1070
1071    portable_sleep($postcommanddelay) if($postcommanddelay);
1072
1073    # timestamp removal of server logs advisor read lock
1074    $$testtimings{"timesrvrlog"} = Time::HiRes::time();
1075
1076    # test definition might instruct to stop some servers
1077    # stop also all servers relative to the given one
1078
1079    my @killtestservers = getpart("client", "killserver");
1080    if(@killtestservers) {
1081        foreach my $server (@killtestservers) {
1082            chomp $server;
1083            if(stopserver($server)) {
1084                logmsg " $testnum: killserver FAILED\n";
1085                return 1; # normal error if asked to fail on unexpected alive
1086            }
1087        }
1088    }
1089    return 0;
1090}
1091
1092#######################################################################
1093# Verify that the postcheck succeeded
1094sub singletest_postcheck {
1095    my ($testnum)=@_;
1096
1097    # run the postcheck command
1098    my @postcheck= getpart("client", "postcheck");
1099    if(@postcheck) {
1100        my $cmd = join("", @postcheck);
1101        chomp $cmd;
1102        if($cmd) {
1103            logmsg "postcheck $cmd\n" if($verbose);
1104            my $rc = runclient("$cmd");
1105            # Must run the postcheck command in torture mode in order
1106            # to clean up, but the result can't be relied upon.
1107            if($rc != 0 && !$torture) {
1108                logmsg " $testnum: postcheck FAILED\n";
1109                return -1;
1110            }
1111        }
1112    }
1113    return 0;
1114}
1115
1116
1117
1118###################################################################
1119# Get ready to run a single test case
1120sub runner_test_preprocess {
1121    my ($testnum)=@_;
1122    my %testtimings;
1123
1124    if(clearlogs()) {
1125        logmsg "Warning: log messages were lost\n";
1126    }
1127
1128    # timestamp test preparation start
1129    # TODO: this metric now shows only a portion of the prep time; better would
1130    # be to time singletest_preprocess below instead
1131    $testtimings{"timeprepini"} = Time::HiRes::time();
1132
1133    ###################################################################
1134    # Load test metadata
1135    # ignore any error here--if there were one, it would have been
1136    # caught during the selection phase and this test would not be
1137    # running now
1138    loadtest("${TESTDIR}/test${testnum}");
1139    readtestkeywords();
1140
1141    ###################################################################
1142    # Restore environment variables that were modified in a previous run.
1143    # Test definition may instruct to (un)set environment vars.
1144    restore_test_env(1);
1145
1146    ###################################################################
1147    # Start the servers needed to run this test case
1148    my ($why, $error) = singletest_startservers($testnum, \%testtimings);
1149
1150    if(!$why) {
1151
1152        ###############################################################
1153        # Generate preprocessed test file
1154        # This must be done after the servers are started so server
1155        # variables are available for substitution.
1156        singletest_preprocess($testnum);
1157
1158        ###############################################################
1159        # Set up the test environment to run this test case
1160        singletest_setenv();
1161
1162        ###############################################################
1163        # Check that the test environment is fine to run this test case
1164        if (!$listonly) {
1165            $why = singletest_precheck($testnum);
1166            $error = -1;
1167        }
1168    }
1169    return ($why, $error, clearlogs(), \%testtimings);
1170}
1171
1172
1173###################################################################
1174# Run a single test case with an environment that already been prepared
1175# Returns 0=success, -1=skippable failure, -2=permanent error,
1176#   1=unskippable test failure, as first integer, plus any log messages,
1177#   plus more return values when error is 0
1178sub runner_test_run {
1179    my ($testnum)=@_;
1180
1181    if(clearlogs()) {
1182        logmsg "Warning: log messages were lost\n";
1183    }
1184
1185    #######################################################################
1186    # Prepare the test environment to run this test case
1187    my $error = singletest_prepare($testnum);
1188    if($error) {
1189        return (-2, clearlogs());
1190    }
1191
1192    #######################################################################
1193    # Run the test command
1194    my %testtimings;
1195    my $cmdres;
1196    my $dumped_core;
1197    my $CURLOUT;
1198    my $tool;
1199    my $usedvalgrind;
1200    ($error, $cmdres, $dumped_core, $CURLOUT, $tool, $usedvalgrind) = singletest_run($testnum, \%testtimings);
1201    if($error) {
1202        return (-2, clearlogs(), \%testtimings);
1203    }
1204
1205    #######################################################################
1206    # Clean up after test command
1207    $error = singletest_clean($testnum, $dumped_core, \%testtimings);
1208    if($error) {
1209        return ($error, clearlogs(), \%testtimings);
1210    }
1211
1212    #######################################################################
1213    # Verify that the postcheck succeeded
1214    $error = singletest_postcheck($testnum);
1215    if($error) {
1216        return ($error, clearlogs(), \%testtimings);
1217    }
1218
1219    #######################################################################
1220    # restore environment variables that were modified
1221    restore_test_env(0);
1222
1223    return (0, clearlogs(), \%testtimings, $cmdres, $CURLOUT, $tool, $usedvalgrind);
1224}
1225
1226# Async call runner_clearlocks
1227# Called by controller
1228sub runnerac_clearlocks {
1229    return controlleripccall(\&runner_clearlocks, @_);
1230}
1231
1232# Async call runner_shutdown
1233# This call does NOT generate an IPC response and must be the last IPC call
1234# received.
1235# Called by controller
1236sub runnerac_shutdown {
1237    my ($runnerid)=$_[0];
1238    my $err = controlleripccall(\&runner_shutdown, @_);
1239
1240    # These have no more use
1241    close($controllerw{$runnerid});
1242    undef $controllerw{$runnerid};
1243    close($controllerr{$runnerid});
1244    undef $controllerr{$runnerid};
1245    return $err;
1246}
1247
1248# Async call of runner_stopservers
1249# Called by controller
1250sub runnerac_stopservers {
1251    return controlleripccall(\&runner_stopservers, @_);
1252}
1253
1254# Async call of runner_test_preprocess
1255# Called by controller
1256sub runnerac_test_preprocess {
1257    return controlleripccall(\&runner_test_preprocess, @_);
1258}
1259
1260# Async call of runner_test_run
1261# Called by controller
1262sub runnerac_test_run {
1263    return controlleripccall(\&runner_test_run, @_);
1264}
1265
1266###################################################################
1267# Call an arbitrary function via IPC
1268# The first argument is the function reference, the second is the runner ID
1269# Returns 0 on success, -1 on error writing to runner
1270# Called by controller (indirectly, via a more specific function)
1271sub controlleripccall {
1272    my $funcref = shift @_;
1273    my $runnerid = shift @_;
1274    # Get the name of the function from the reference
1275    my $cv = svref_2object($funcref);
1276    my $gv = $cv->GV;
1277    # Prepend the name to the function arguments so it's marshalled along with them
1278    unshift @_, $gv->NAME;
1279    # Marshall the arguments into a flat string
1280    my $margs = freeze \@_;
1281
1282    # Send IPC call via pipe
1283    my $err;
1284    while(! defined ($err = syswrite($controllerw{$runnerid}, (pack "L", length($margs)) . $margs)) || $err <= 0) {
1285        if((!defined $err && ! $!{EINTR}) || (defined $err && $err == 0)) {
1286            # Runner has likely died
1287            return -1;
1288        }
1289        # system call was interrupted, probably by ^C; restart it so we stay in sync
1290    }
1291
1292    if(!$multiprocess) {
1293        # Call the remote function here in single process mode
1294        ipcrecv();
1295     }
1296     return 0;
1297}
1298
1299###################################################################
1300# Receive async response of a previous call via IPC
1301# The first return value is the runner ID or undef on error
1302# Called by controller
1303sub runnerar {
1304    my ($runnerid) = @_;
1305    my $err;
1306    my $datalen;
1307    while(! defined ($err = sysread($controllerr{$runnerid}, $datalen, 4)) || $err <= 0) {
1308        if((!defined $err && ! $!{EINTR}) || (defined $err && $err == 0)) {
1309            # Runner is likely dead and closed the pipe
1310            return undef;
1311        }
1312        # system call was interrupted, probably by ^C; restart it so we stay in sync
1313    }
1314    my $len=unpack("L", $datalen);
1315    my $buf;
1316    while(! defined ($err = sysread($controllerr{$runnerid}, $buf, $len)) || $err <= 0) {
1317        if((!defined $err && ! $!{EINTR}) || (defined $err && $err == 0)) {
1318            # Runner is likely dead and closed the pipe
1319            return undef;
1320        }
1321        # system call was interrupted, probably by ^C; restart it so we stay in sync
1322    }
1323
1324    # Decode response values
1325    my $resarrayref = thaw $buf;
1326
1327    # First argument is runner ID
1328    # TODO: remove this; it's unneeded since it's passed in
1329    unshift @$resarrayref, $runnerid;
1330    return @$resarrayref;
1331}
1332
1333###################################################################
1334# Returns runner ID if a response from an async call is ready or error
1335# First value is ready, second is error, however an error case shows up
1336# as ready in Linux, so you can't trust it.
1337# argument is 0 for nonblocking, undef for blocking, anything else for timeout
1338# Called by controller
1339sub runnerar_ready {
1340    my ($blocking) = @_;
1341    my $rin = "";
1342    my %idbyfileno;
1343    my $maxfileno=0;
1344    foreach my $p (keys(%controllerr)) {
1345        my $fd = fileno($controllerr{$p});
1346        vec($rin, $fd, 1) = 1;
1347        $idbyfileno{$fd} = $p;  # save the runner ID for each pipe fd
1348        if($fd > $maxfileno) {
1349            $maxfileno = $fd;
1350        }
1351    }
1352    $maxfileno || die "Internal error: no runners are available to wait on\n";
1353
1354    # Wait for any pipe from any runner to be ready
1355    # This may be interrupted and return EINTR, but this is ignored and the
1356    # caller will need to later call this function again.
1357    # TODO: this is relatively slow with hundreds of fds
1358    my $ein = $rin;
1359    if(select(my $rout=$rin, undef, my $eout=$ein, $blocking) >= 1) {
1360        for my $fd (0..$maxfileno) {
1361            # Return an error condition first in case it's both
1362            if(vec($eout, $fd, 1)) {
1363                return (undef, $idbyfileno{$fd});
1364            }
1365            if(vec($rout, $fd, 1)) {
1366                return ($idbyfileno{$fd}, undef);
1367            }
1368        }
1369        die "Internal pipe readiness inconsistency\n";
1370    }
1371    return (undef, undef);
1372}
1373
1374
1375###################################################################
1376# Cleanly abort and exit the runner
1377# This uses print since there is no longer any controller to write logs.
1378sub runnerabort{
1379    print "Controller is gone: runner $$ for $LOGDIR exiting\n";
1380    my ($error, $logs) = runner_stopservers();
1381    print $logs;
1382    runner_shutdown();
1383}
1384
1385###################################################################
1386# Receive an IPC call in the runner and execute it
1387# The IPC is read from the $runnerr pipe and the response is
1388# written to the $runnerw pipe
1389# Returns 0 if more IPC calls are expected or 1 if the runner should exit
1390sub ipcrecv {
1391    my $err;
1392    my $datalen;
1393    while(! defined ($err = sysread($runnerr, $datalen, 4)) || $err <= 0) {
1394        if((!defined $err && ! $!{EINTR}) || (defined $err && $err == 0)) {
1395            # pipe has closed; controller is gone and we must exit
1396            runnerabort();
1397            # Special case: no response will be forthcoming
1398            return 1;
1399        }
1400        # system call was interrupted, probably by ^C; restart it so we stay in sync
1401    }
1402    my $len=unpack("L", $datalen);
1403    my $buf;
1404    while(! defined ($err = sysread($runnerr, $buf, $len)) || $err <= 0) {
1405        if((!defined $err && ! $!{EINTR}) || (defined $err && $err == 0)) {
1406            # pipe has closed; controller is gone and we must exit
1407            runnerabort();
1408            # Special case: no response will be forthcoming
1409            return 1;
1410        }
1411        # system call was interrupted, probably by ^C; restart it so we stay in sync
1412    }
1413
1414    # Decode the function name and arguments
1415    my $argsarrayref = thaw $buf;
1416
1417    # The name of the function to call is the first argument
1418    my $funcname = shift @$argsarrayref;
1419
1420    # print "ipcrecv $funcname\n";
1421    # Synchronously call the desired function
1422    my @res;
1423    if($funcname eq "runner_clearlocks") {
1424        @res = runner_clearlocks(@$argsarrayref);
1425    }
1426    elsif($funcname eq "runner_shutdown") {
1427        runner_shutdown(@$argsarrayref);
1428        # Special case: no response will be forthcoming
1429        return 1;
1430    }
1431    elsif($funcname eq "runner_stopservers") {
1432        @res = runner_stopservers(@$argsarrayref);
1433    }
1434    elsif($funcname eq "runner_test_preprocess") {
1435        @res = runner_test_preprocess(@$argsarrayref);
1436    }
1437    elsif($funcname eq "runner_test_run") {
1438        @res = runner_test_run(@$argsarrayref);
1439    } else {
1440        die "Unknown IPC function $funcname\n";
1441    }
1442    # print "ipcrecv results\n";
1443
1444    # Marshall the results to return
1445    $buf = freeze \@res;
1446
1447    while(! defined ($err = syswrite($runnerw, (pack "L", length($buf)) . $buf)) || $err <= 0) {
1448        if((!defined $err && ! $!{EINTR}) || (defined $err && $err == 0)) {
1449            # pipe has closed; controller is gone and we must exit
1450            runnerabort();
1451            # Special case: no response will be forthcoming
1452            return 1;
1453        }
1454        # system call was interrupted, probably by ^C; restart it so we stay in sync
1455    }
1456
1457    return 0;
1458}
1459
1460###################################################################
1461# Kill the server processes that still have lock files in a directory
1462sub runner_clearlocks {
1463    my ($lockdir)=@_;
1464    if(clearlogs()) {
1465        logmsg "Warning: log messages were lost\n";
1466    }
1467    clearlocks($lockdir);
1468    return clearlogs();
1469}
1470
1471
1472###################################################################
1473# Kill all server processes
1474sub runner_stopservers {
1475    my $error = stopservers($verbose);
1476    my $logs = clearlogs();
1477    return ($error, $logs);
1478}
1479
1480###################################################################
1481# Shut down this runner
1482sub runner_shutdown {
1483    close($runnerr);
1484    undef $runnerr;
1485    close($runnerw);
1486    undef $runnerw;
1487}
1488
1489
14901;
1491