my $have_clock_gettime = &Time::HiRes::d_clock_gettime;
my $have_clock_getres = &Time::HiRes::d_clock_getres;
+sub has_symbol {
+ my $symbol = shift;
+ eval "use Time::HiRes qw($symbol)";
+ return 0 unless $@ eq '';
+ eval "my \$a = $symbol";
+ return $@ eq '';
+}
+
printf "# have_gettimeofday = %d\n", $have_gettimeofday;
printf "# have_usleep = %d\n", $have_usleep;
printf "# have_nanosleep = %d\n", $have_nanosleep;
use Config;
+use Time::HiRes qw(gettimeofday);
+
my $have_alarm = $Config{d_alarm};
my $have_fork = $Config{d_fork};
my $waitfor = 60; # 10-20 seconds is normal (load affects this).
my $timer_pid;
+my $TheEnd;
if ($have_fork) {
print "# I am the main process $$, starting the timer process...\n";
print "# This is the timer process $$, over and out.\n";
exit(0);
} else {
- print "# Timer process $timer_pid launched, continuing testing...\n";
+ print "# The timer process $timer_pid launched, continuing testing...\n";
+ $TheEnd = time() + $waitfor;
}
} else {
warn "$0: fork failed: $!\n";
skip 7..8;
}
else {
+ use Time::HiRes qw(usleep);
my $one = time;
usleep(10_000);
my $two = time;
skip 11;
}
else {
- my $r = [gettimeofday()];
+ my $r = [ gettimeofday() ];
Time::HiRes::sleep( 0.5 );
my $f = tv_interval $r;
ok 11, $f > 0.4 && $f < 0.9, "slept $f instead of 0.5 secs.";
unless ( defined &Time::HiRes::setitimer
&& defined &Time::HiRes::getitimer
- && eval 'use Time::HiRes qw(ITIMER_VIRTUAL); print ITIMER_VIRTUAL'
- && $Config{d_select}
- && $Config{d_select}
+ && has_symbol('ITIMER_VIRTUAL')
&& $Config{sig_name} =~ m/\bVTALRM\b/) {
for (18..19) {
print "ok $_ # Skip: no virtual interval timers\n";
}
} else {
- use Time::HiRes qw (setitimer getitimer ITIMER_VIRTUAL);
+ use Time::HiRes qw(setitimer getitimer ITIMER_VIRTUAL);
my $i = 3;
my $r = [Time::HiRes::gettimeofday()];
$SIG{VTALRM} = sub {
- $i ? $i-- : setitimer(ITIMER_VIRTUAL, 0);
+ $i ? $i-- : setitimer(&ITIMER_VIRTUAL, 0);
print "# Tick! $i ", Time::HiRes::tv_interval($r), "\n";
};
print "# setitimer: ", join(" ", setitimer(ITIMER_VIRTUAL, 0.5, 0.4)), "\n";
# Assume interval timer granularity of $limit * 0.5 seconds. Too bold?
- my $virt = getitimer(ITIMER_VIRTUAL);
+ my $virt = getitimer(&ITIMER_VIRTUAL);
print "not " unless defined $virt && abs($virt / 0.5) - 1 < $limit;
print "ok 18\n";
print "# getitimer: ", join(" ", getitimer(ITIMER_VIRTUAL)), "\n";
- while (getitimer(ITIMER_VIRTUAL)) {
+ while (getitimer(&ITIMER_VIRTUAL)) {
my $j;
for (1..1000) { $j++ } # Can't be unbreakable, must test getitimer().
}
print "# getitimer: ", join(" ", getitimer(ITIMER_VIRTUAL)), "\n";
- $virt = getitimer(ITIMER_VIRTUAL);
+ $virt = getitimer(&ITIMER_VIRTUAL);
print "not " unless defined $virt && $virt == 0;
print "ok 19\n";
$SIG{VTALRM} = 'DEFAULT';
}
-if ($have_gettimeofday) {
+if ($have_gettimeofday &&
+ $have_usleep) {
+ use Time::HiRes qw(usleep);
+
my ($t0, $td);
my $sleep = 1.5; # seconds
# one bug that caused a core dump on reentering the handler. This bug
# was fixed by the time of Perl 5.8.1.
+ # Do not try mixing sleep() and alarm() for testing this.
+
my $a = 0; # Number of alarms we receive.
my $A = 2; # Number of alarms we will handle before disarming.
# (We may well get $A + 1 alarms.)
skip 29;
}
-if ($have_clock_gettime) {
- # All implementations are SUPPOSED TO support CLOCK_REALTIME...
- eval 'use Time::HiRes qw(CLOCK_REALTIME)';
- unless ($@) {
- my $t0 = clock_gettime(&CLOCK_REALTIME);
- use Time::HiRes qw(sleep);
- my $T = 0.1;
- sleep($T);
- my $t1 = clock_gettime(&CLOCK_REALTIME);
- if ($t0 > 0 && $t1) {
- print "# t1 = $t1, t0 = $t0\n";
- my $dt = $t1 - $t0;
- my $rt = abs(1 - $dt / $T);
- if ($rt <= 0.25) { # Allow 25% jitter.
- print "ok 30 # dt = $dt, r = $rt\n";
+if ($have_clock_gettime &&
+ # All implementations of clock_gettime()
+ # are SUPPOSED TO support CLOCK_REALTIME.
+ has_symbol('CLOCK_REALTIME')) {
+ my $ok = 0;
+ TRY: {
+ for my $try (1..3) {
+ print "# CLOCK_REALTIME: try = $try\n";
+ my $t0 = clock_gettime(&CLOCK_REALTIME);
+ use Time::HiRes qw(sleep);
+ my $T = 1.5;
+ sleep($T);
+ my $t1 = clock_gettime(&CLOCK_REALTIME);
+ if ($t0 > 0 && $t1 > $t0) {
+ print "# t1 = $t1, t0 = $t0\n";
+ my $dt = $t1 - $t0;
+ my $rt = abs(1 - $dt / $T);
+ print "# dt = $dt, rt = $rt\n";
+ if ($rt <= 2 * $limit) {
+ $ok = 1;
+ last TRY;
+ }
} else {
- print "not ok 30 # dt = $dt, rt = $rt\n";
+ print "# Error: t0 = $t0, t1 = $t1\n";
}
- } else {
- print "# Error '$!'\n";
- skip 30;
+ my $r = rand() + rand();
+ printf "# Sleeping for %.6f seconds...\n";
+ sleep($r);
}
+ }
+ if ($ok) {
+ print "ok 30\n";
} else {
- print "# No CLOCK_REALTIME ($@)\n";
- skip 30;
+ print "not ok 30\n";
}
} else {
print "# No clock_gettime\n";
END {
if (defined $timer_pid) {
- print "# I am the main process $$, terminating the timer process $timer_pid.\n";
+ my $left = $TheEnd - time();
+ printf "# I am the main process $$, terminating the timer process $timer_pid\n# before it terminates me in %d seconds (testing took %d seconds).\n", $left, $waitfor - $left;
kill('TERM', $timer_pid); # We are done, the timer can go.
unlink("ktrace.out"); # Used in BSD system call tracing.
print "# All done.\n";
projects / p5sagit/p5-mst-13.2.git / blobdiff