--- /dev/null
+use strict;
+use warnings;
+
+BEGIN {
+ if ($ENV{'PERL_CORE'}){
+ chdir 't';
+ unshift @INC, '../lib';
+ }
+ use Config;
+ if (! $Config{'useithreads'}) {
+ print("1..0 # Skip: Perl not compiled with 'useithreads'\n");
+ exit(0);
+ }
+ eval {
+ require Time::HiRes;
+ import Time::HiRes qw(time);
+ };
+ if ($@) {
+ print("1..0 # Skip: Time::HiRes not available.\n");
+ exit(0);
+ }
+}
+
+use ExtUtils::testlib;
+
+my $Base = 0;
+sub ok {
+ my ($id, $ok, $name) = @_;
+ $id += $Base;
+
+ # You have to do it this way or VMS will get confused.
+ if ($ok) {
+ print("ok $id - $name\n");
+ } else {
+ print("not ok $id - $name\n");
+ printf("# Failed test at line %d\n", (caller)[2]);
+ }
+
+ return ($ok);
+}
+
+BEGIN {
+ $| = 1;
+ print("1..63\n"); ### Number of tests that will be run ###
+};
+
+use threads;
+use threads::shared;
+
+ok(1, 1, 'Loaded');
+$Base++;
+
+### Start of Testing ###
+
+# subsecond cond_timedwait extended tests adapted from wait.t
+
+# The two skips later on in these tests refer to this quote from the
+# pod/perl583delta.pod:
+#
+# =head1 Platform Specific Problems
+#
+# The regression test ext/threads/shared/t/wait.t fails on early RedHat 9
+# and HP-UX 10.20 due to bugs in their threading implementations.
+# RedHat users should see https://rhn.redhat.com/errata/RHBA-2003-136.html
+# and consider upgrading their glibc.
+
+sub forko (&$$); # To prevent deadlock from underlying pthread_* bugs (as in
+ # stock RH9 glibc/NPTL) or from our own errors, we run tests
+ # in separately forked and alarmed processes.
+
+*forko = ($^O =~ /^dos|os2|mswin32|netware|vms$/i)
+? sub (&$$) { my $code = shift; goto &$code; }
+: sub (&$$) {
+ my ($code, $expected, $patience) = @_;
+ my ($test_num, $pid);
+ local *CHLD;
+
+ my $bump = $expected;
+
+ $patience ||= 60;
+
+ unless (defined($pid = open(CHLD, "-|"))) {
+ die "fork: $!\n";
+ }
+ if (! $pid) { # Child -- run the test
+ $patience ||= 60;
+ alarm $patience;
+ &$code;
+ exit;
+ }
+
+ while (<CHLD>) {
+ $expected--, $test_num=$1 if /^(?:not )?ok (\d+)/;
+ #print "#forko: ($expected, $1) $_";
+ print;
+ }
+
+ close(CHLD);
+
+ while ($expected--) {
+ $test_num++;
+ print "not ok $test_num - child status $?\n";
+ }
+
+ $Base += $bump;
+
+};
+
+# - TEST basics
+
+my @wait_how = (
+ "simple", # cond var == lock var; implicit lock; e.g.: cond_wait($c)
+ "repeat", # cond var == lock var; explicit lock; e.g.: cond_wait($c, $c)
+ "twain" # cond var != lock var; explicit lock; e.g.: cond_wait($c, $l)
+);
+
+SYNC_SHARED: {
+ my $test : shared; # simple|repeat|twain
+ my $cond : shared;
+ my $lock : shared;
+
+ ok(1, 1, "Shared synchronization tests preparation");
+ $Base += 1;
+
+ sub signaller {
+ ok(2,1,"$test: child before lock");
+ $test =~ /twain/ ? lock($lock) : lock($cond);
+ ok(3,1,"$test: child obtained lock");
+ if ($test =~ 'twain') {
+ no warnings 'threads'; # lock var != cond var, so disable warnings
+ cond_signal($cond);
+ } else {
+ cond_signal($cond);
+ }
+ ok(4,1,"$test: child signalled condition");
+ }
+
+ # - TEST cond_timedwait success
+
+ forko( sub {
+ foreach (@wait_how) {
+ $test = "cond_timedwait [$_]";
+ threads->create(\&ctw, 0.05)->join;
+ $Base += 6;
+ }
+ }, 6*@wait_how, 5);
+
+ sub ctw($) {
+ my $to = shift;
+ my $thr;
+
+ { # -- begin lock scope; which lock to obtain?
+ $test =~ /twain/ ? lock($lock) : lock($cond);
+ ok(1,1, "$test: obtained initial lock");
+
+ $thr = threads->create(\&signaller);
+ my $ok = 0;
+ for ($test) {
+ $ok=cond_timedwait($cond, time() + $to), last if /simple/;
+ $ok=cond_timedwait($cond, time() + $to, $cond), last if /repeat/;
+ $ok=cond_timedwait($cond, time() + $to, $lock), last if /twain/;
+ die "$test: unknown test\n";
+ }
+ ok(5,$ok, "$test: condition obtained");
+ } # -- end lock scope
+
+ $thr->join;
+ ok(6,1, "$test: join completed");
+ }
+
+ # - TEST cond_timedwait timeout
+
+ forko( sub {
+ foreach (@wait_how) {
+ $test = "cond_timedwait pause, timeout [$_]";
+ threads->create(\&ctw_fail, 0.3)->join;
+ $Base += 2;
+ }
+ }, 2*@wait_how, 5);
+
+ forko( sub {
+ foreach (@wait_how) {
+ $test = "cond_timedwait instant timeout [$_]";
+ threads->create(\&ctw_fail, -0.60)->join;
+ $Base += 2;
+ }
+ }, 2*@wait_how, 5);
+
+ # cond_timedwait timeout (relative timeout)
+ sub ctw_fail {
+ my $to = shift;
+ if ($^O eq "hpux" && $Config{osvers} <= 10.20) {
+ # The lock obtaining would pass, but the wait will not.
+ ok(1,1, "$test: obtained initial lock");
+ ok(2,0, "# SKIP see perl583delta");
+ } else {
+ $test =~ /twain/ ? lock($lock) : lock($cond);
+ ok(1,1, "$test: obtained initial lock");
+ my $ok;
+ my $delta = time();
+ for ($test) {
+ $ok=cond_timedwait($cond, time() + $to), last if /simple/;
+ $ok=cond_timedwait($cond, time() + $to, $cond), last if /repeat/;
+ $ok=cond_timedwait($cond, time() + $to, $lock), last if /twain/;
+ die "$test: unknown test\n";
+ }
+ $delta = time() - $delta;
+ if (($to < 0) || ($^O eq 'os2')) {
+ ok(2, ! defined($ok), "$test: timeout");
+ } else {
+ # This is a bit problematic, as scheduling and compute latencies
+ # can inject delays in our computation. For now, assume -10/+20%
+ # is reasonable
+ if (! ok(2, ! defined($ok) &&
+ ($delta > (0.9 * $to)) &&
+ ($delta < (1.2 * $to)),
+ "$test: timeout"))
+ {
+ print(STDERR "# Timeout: specified=$to actual=$delta secs.\n");
+ }
+ }
+ }
+ }
+
+} # -- SYNCH_SHARED block
+
+
+# same as above, but with references to lock and cond vars
+
+SYNCH_REFS: {
+ my $test : shared; # simple|repeat|twain
+
+ my $true_cond; share($true_cond);
+ my $true_lock; share($true_lock);
+
+ my $cond = \$true_cond;
+ my $lock = \$true_lock;
+
+ ok(1, 1, "Synchronization reference tests preparation");
+ $Base += 1;
+
+ sub signaller2 {
+ ok(2,1,"$test: child before lock");
+ $test =~ /twain/ ? lock($lock) : lock($cond);
+ ok(3,1,"$test: child obtained lock");
+ if ($test =~ 'twain') {
+ no warnings 'threads'; # lock var != cond var, so disable warnings
+ cond_signal($cond);
+ } else {
+ cond_signal($cond);
+ }
+ ok(4,1,"$test: child signalled condition");
+ }
+
+ # - TEST cond_timedwait success
+
+ forko( sub {
+ foreach (@wait_how) {
+ $test = "cond_timedwait [$_]";
+ threads->create(\&ctw2, 0.05)->join;
+ $Base += 6;
+ }
+ }, 6*@wait_how, 5);
+
+ sub ctw2($) {
+ my $to = shift;
+ my $thr;
+
+ { # -- begin lock scope; which lock to obtain?
+ $test =~ /twain/ ? lock($lock) : lock($cond);
+ ok(1,1, "$test: obtained initial lock");
+
+ $thr = threads->create(\&signaller2);
+ my $ok = 0;
+ for ($test) {
+ $ok=cond_timedwait($cond, time() + $to), last if /simple/;
+ $ok=cond_timedwait($cond, time() + $to, $cond), last if /repeat/;
+ $ok=cond_timedwait($cond, time() + $to, $lock), last if /twain/;
+ die "$test: unknown test\n";
+ }
+ ok(5,$ok, "$test: condition obtained");
+ } # -- end lock scope
+
+ $thr->join;
+ ok(6,1, "$test: join completed");
+ }
+
+ # - TEST cond_timedwait timeout
+
+ forko( sub {
+ foreach (@wait_how) {
+ $test = "cond_timedwait pause, timeout [$_]";
+ threads->create(\&ctw_fail2, 0.3)->join;
+ $Base += 2;
+ }
+ }, 2*@wait_how, 5);
+
+ forko( sub {
+ foreach (@wait_how) {
+ $test = "cond_timedwait instant timeout [$_]";
+ threads->create(\&ctw_fail2, -0.60)->join;
+ $Base += 2;
+ }
+ }, 2*@wait_how, 5);
+
+ sub ctw_fail2 {
+ my $to = shift;
+
+ if ($^O eq "hpux" && $Config{osvers} <= 10.20) {
+ # The lock obtaining would pass, but the wait will not.
+ ok(1,1, "$test: obtained initial lock");
+ ok(2,0, "# SKIP see perl583delta");
+ } else {
+ $test =~ /twain/ ? lock($lock) : lock($cond);
+ ok(1,1, "$test: obtained initial lock");
+ my $ok;
+ my $delta = time();
+ for ($test) {
+ $ok=cond_timedwait($cond, time() + $to), last if /simple/;
+ $ok=cond_timedwait($cond, time() + $to, $cond), last if /repeat/;
+ $ok=cond_timedwait($cond, time() + $to, $lock), last if /twain/;
+ die "$test: unknown test\n";
+ }
+ $delta = time() - $delta;
+ if (($to < 0) || ($^O eq 'os2')) {
+ ok(2,!$ok, "$test: timeout");
+ } else {
+ # This is a bit problematic, as scheduling and compute latencies
+ # can inject delays in our computation. For now, assume -10/+20%
+ # is reasonable
+ if (! ok(2, ! $ok &&
+ ($delta > (0.9 * $to)) &&
+ ($delta < (1.2 * $to)),
+ "$test: timeout"))
+ {
+ print(STDERR "# Timeout: specified=$to actual=$delta secs.\n");
+ }
+ }
+ }
+ }
+
+} # -- SYNCH_REFS block
+
+# EOF
projects / p5sagit/p5-mst-13.2.git / commitdiff