1use strict; 2 3BEGIN { 4 require Time::HiRes; 5 unless(&Time::HiRes::d_hires_stat) { 6 require Test::More; 7 Test::More::plan(skip_all => "no hi-res stat"); 8 } 9 if($^O =~ /\A(?:cygwin|MSWin)/) { 10 require Test::More; 11 Test::More::plan(skip_all => 12 "$^O file timestamps not reliable enough for stat test"); 13 } 14} 15 16use Test::More tests => 43; 17BEGIN { push @INC, '.' } 18use t::Watchdog; 19 20my @atime; 21my @mtime; 22for (1..5) { 23 note "cycle $_"; 24 Time::HiRes::sleep(rand(0.1) + 0.1); 25 open(X, '>', $$); 26 print X $$; 27 close(X); 28 my($a, $stat, $b) = ("a", [Time::HiRes::stat($$)], "b"); 29 is $a, "a", "stat stack discipline"; 30 is $b, "b", "stat stack discipline"; 31 is ref($stat), "ARRAY", "stat returned array"; 32 push @mtime, $stat->[9]; 33 ($a, my $lstat, $b) = ("a", [Time::HiRes::lstat($$)], "b"); 34 is $a, "a", "lstat stack discipline"; 35 is $b, "b", "lstat stack discipline"; 36 SKIP: { 37 if($^O eq "haiku") { 38 skip "testing stat access time on Haiku", 2; 39 } 40 is_deeply $lstat, $stat, "write: stat and lstat returned same values"; 41 Time::HiRes::sleep(rand(0.1) + 0.1); 42 open(X, '<', $$); 43 <X>; 44 close(X); 45 $stat = [Time::HiRes::stat($$)]; 46 push @atime, $stat->[8]; 47 $lstat = [Time::HiRes::lstat($$)]; 48 is_deeply $lstat, $stat, "read: stat and lstat returned same values"; 49 } 50} 511 while unlink $$; 52note ("mtime = @mtime"); 53note ("atime = @atime"); 54my $ai = 0; 55my $mi = 0; 56my $ss = 0; 57for (my $i = 1; $i < @atime; $i++) { 58 if ($atime[$i] >= $atime[$i-1]) { 59 $ai++; 60 } 61 if ($atime[$i] > int($atime[$i])) { 62 $ss++; 63 } 64} 65for (my $i = 1; $i < @mtime; $i++) { 66 if ($mtime[$i] >= $mtime[$i-1]) { 67 $mi++; 68 } 69 if ($mtime[$i] > int($mtime[$i])) { 70 $ss++; 71 } 72} 73note ("ai = $ai, mi = $mi, ss = $ss"); 74# Need at least 75% of monotonical increase and 75# 20% of subsecond results. Yes, this is guessing. 76SKIP: { 77 skip "no subsecond timestamps detected", 1 if $ss == 0; 78 skip "testing stat access on Haiku", 1 if $^O eq "haiku"; 79 ok $mi/(@mtime-1) >= 0.75 && $ai/(@atime-1) >= 0.75 && 80 $ss/(@mtime+@atime) >= 0.2, 81 "monotonical increase and subsecond results within expected parameters"; 82} 83 84my $targetname = "tgt$$"; 85my $linkname = "link$$"; 86SKIP: { 87 open(X, '>', $targetname); 88 print X $$; 89 close(X); 90 eval { symlink $targetname, $linkname or die "can't symlink: $!"; }; 91 skip "can't symlink", 7 if $@ ne ""; 92 note "compare Time::HiRes::stat with ::lstat"; 93 my @tgt_stat = Time::HiRes::stat($targetname); 94 my @tgt_lstat = Time::HiRes::lstat($targetname); 95 my @lnk_stat = Time::HiRes::stat($linkname); 96 my @lnk_lstat = Time::HiRes::lstat($linkname); 97 my $exp = 13; 98 is scalar(@tgt_stat), $exp, "stat on target"; 99 is scalar(@tgt_lstat), $exp, "lstat on target"; 100 is scalar(@lnk_stat), $exp, "stat on link"; 101 is scalar(@lnk_lstat), $exp, "lstat on link"; 102 skip "testing stat access on Haiku", 3 if $^O eq "haiku"; 103 is_deeply \@tgt_stat, \@tgt_lstat, "stat and lstat return same values on target"; 104 is_deeply \@tgt_stat, \@lnk_stat, "stat and lstat return same values on link"; 105 isnt $lnk_lstat[2], $tgt_stat[2], 106 "target stat mode value differs from link lstat mode value"; 107} 1081 while unlink $linkname; 1091 while unlink $targetname; 110 1111; 112