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Diffstat (limited to 'contrib/perl5/t/lib/syslfs.t')
| -rwxr-xr-x | contrib/perl5/t/lib/syslfs.t | 265 |
1 files changed, 0 insertions, 265 deletions
diff --git a/contrib/perl5/t/lib/syslfs.t b/contrib/perl5/t/lib/syslfs.t deleted file mode 100755 index 2bdb69d..0000000 --- a/contrib/perl5/t/lib/syslfs.t +++ /dev/null @@ -1,265 +0,0 @@ -# NOTE: this file tests how large files (>2GB) work with raw system IO. -# stdio: open(), tell(), seek(), print(), read() is tested in t/op/lfs.t. -# If you modify/add tests here, remember to update also t/op/lfs.t. - -BEGIN { - chdir 't' if -d 't'; - @INC = '../lib'; - require Config; import Config; - # Don't bother if there are no quad offsets. - if ($Config{lseeksize} < 8) { - print "1..0 # Skip: no 64-bit file offsets\n"; - exit(0); - } - require Fcntl; import Fcntl qw(/^O_/ /^SEEK_/); -} - -use strict; - -our @s; -our $fail; - -sub zap { - close(BIG); - unlink("big"); - unlink("big1"); - unlink("big2"); -} - -sub bye { - zap(); - exit(0); -} - -my $explained; - -sub explain { - unless ($explained++) { - print <<EOM; -# -# If the lfs (large file support: large meaning larger than two -# gigabytes) tests are skipped or fail, it may mean either that your -# process (or process group) is not allowed to write large files -# (resource limits) or that the file system (the network filesystem?) -# you are running the tests on doesn't let your user/group have large -# files (quota) or the filesystem simply doesn't support large files. -# You may even need to reconfigure your kernel. (This is all very -# operating system and site-dependent.) -# -# Perl may still be able to support large files, once you have -# such a process, enough quota, and such a (file) system. -# It is just that the test failed now. -# -EOM - } - print "1..0 # Skip: @_\n" if @_; -} - -print "# checking whether we have sparse files...\n"; - -# Known have-nots. -if ($^O eq 'MSWin32' || $^O eq 'VMS') { - print "1..0 # Skip: no sparse files in $^O\n"; - bye(); -} - -# Known haves that have problems running this test -# (for example because they do not support sparse files, like UNICOS) -if ($^O eq 'unicos') { - print "1..0 # Skip: no sparse files in $^0, unable to test large files\n"; - bye(); -} - -# Then try heuristically to deduce whether we have sparse files. - -# We'll start off by creating a one megabyte file which has -# only three "true" bytes. If we have sparseness, we should -# consume less blocks than one megabyte (assuming nobody has -# one megabyte blocks...) - -sysopen(BIG, "big1", O_WRONLY|O_CREAT|O_TRUNC) or - do { warn "sysopen big1 failed: $!\n"; bye }; -sysseek(BIG, 1_000_000, SEEK_SET) or - do { warn "sysseek big1 failed: $!\n"; bye }; -syswrite(BIG, "big") or - do { warn "syswrite big1 failed; $!\n"; bye }; -close(BIG) or - do { warn "close big1 failed: $!\n"; bye }; - -my @s1 = stat("big1"); - -print "# s1 = @s1\n"; - -sysopen(BIG, "big2", O_WRONLY|O_CREAT|O_TRUNC) or - do { warn "sysopen big2 failed: $!\n"; bye }; -sysseek(BIG, 2_000_000, SEEK_SET) or - do { warn "sysseek big2 failed: $!\n"; bye }; -syswrite(BIG, "big") or - do { warn "syswrite big2 failed; $!\n"; bye }; -close(BIG) or - do { warn "close big2 failed: $!\n"; bye }; - -my @s2 = stat("big2"); - -print "# s2 = @s2\n"; - -zap(); - -unless ($s1[7] == 1_000_003 && $s2[7] == 2_000_003 && - $s1[11] == $s2[11] && $s1[12] == $s2[12]) { - print "1..0 # Skip: no sparse files?\n"; - bye; -} - -print "# we seem to have sparse files...\n"; - -# By now we better be sure that we do have sparse files: -# if we are not, the following will hog 5 gigabytes of disk. Ooops. -# This may fail by producing some signal; run in a subprocess first for safety - -$ENV{LC_ALL} = "C"; - -my $r = system '../perl', '-I../lib', '-e', <<'EOF'; -use Fcntl qw(/^O_/ /^SEEK_/); -sysopen(BIG, "big", O_WRONLY|O_CREAT|O_TRUNC) or die $!; -my $sysseek = sysseek(BIG, 5_000_000_000, SEEK_SET); -my $syswrite = syswrite(BIG, "big"); -exit 0; -EOF - -sysopen(BIG, "big", O_WRONLY|O_CREAT|O_TRUNC) or - do { warn "sysopen 'big' failed: $!\n"; bye }; -my $sysseek = sysseek(BIG, 5_000_000_000, SEEK_SET); -unless (! $r && defined $sysseek && $sysseek == 5_000_000_000) { - $sysseek = 'undef' unless defined $sysseek; - explain("seeking past 2GB failed: ", - $r ? 'signal '.($r & 0x7f) : "$! (sysseek returned $sysseek)"); - bye(); -} - -# The syswrite will fail if there are are filesize limitations (process or fs). -my $syswrite = syswrite(BIG, "big"); -print "# syswrite failed: $! (syswrite returned ", - defined $syswrite ? $syswrite : 'undef', ")\n" - unless defined $syswrite && $syswrite == 3; -my $close = close BIG; -print "# close failed: $!\n" unless $close; -unless($syswrite && $close) { - if ($! =~/too large/i) { - explain("writing past 2GB failed: process limits?"); - } elsif ($! =~ /quota/i) { - explain("filesystem quota limits?"); - } else { - explain("error: $!"); - } - bye(); -} - -@s = stat("big"); - -print "# @s\n"; - -unless ($s[7] == 5_000_000_003) { - explain("kernel/fs not configured to use large files?"); - bye(); -} - -sub fail () { - print "not "; - $fail++; -} - -sub offset ($$) { - my ($offset_will_be, $offset_want) = @_; - my $offset_is = eval $offset_will_be; - unless ($offset_is == $offset_want) { - print "# bad offset $offset_is, want $offset_want\n"; - my ($offset_func) = ($offset_will_be =~ /^(\w+)/); - if (unpack("L", pack("L", $offset_want)) == $offset_is) { - print "# 32-bit wraparound suspected in $offset_func() since\n"; - print "# $offset_want cast into 32 bits equals $offset_is.\n"; - } elsif ($offset_want - unpack("L", pack("L", $offset_want)) - 1 - == $offset_is) { - print "# 32-bit wraparound suspected in $offset_func() since\n"; - printf "# %s - unpack('L', pack('L', %s)) - 1 equals %s.\n", - $offset_want, - $offset_want, - $offset_is; - } - fail; - } -} - -print "1..17\n"; - -$fail = 0; - -fail unless $s[7] == 5_000_000_003; # exercizes pp_stat -print "ok 1\n"; - -fail unless -s "big" == 5_000_000_003; # exercizes pp_ftsize -print "ok 2\n"; - -fail unless -e "big"; -print "ok 3\n"; - -fail unless -f "big"; -print "ok 4\n"; - -sysopen(BIG, "big", O_RDONLY) or do { warn "sysopen failed: $!\n"; bye }; - -offset('sysseek(BIG, 4_500_000_000, SEEK_SET)', 4_500_000_000); -print "ok 5\n"; - -offset('sysseek(BIG, 0, SEEK_CUR)', 4_500_000_000); -print "ok 6\n"; - -offset('sysseek(BIG, 1, SEEK_CUR)', 4_500_000_001); -print "ok 7\n"; - -offset('sysseek(BIG, 0, SEEK_CUR)', 4_500_000_001); -print "ok 8\n"; - -offset('sysseek(BIG, -1, SEEK_CUR)', 4_500_000_000); -print "ok 9\n"; - -offset('sysseek(BIG, 0, SEEK_CUR)', 4_500_000_000); -print "ok 10\n"; - -offset('sysseek(BIG, -3, SEEK_END)', 5_000_000_000); -print "ok 11\n"; - -offset('sysseek(BIG, 0, SEEK_CUR)', 5_000_000_000); -print "ok 12\n"; - -my $big; - -fail unless sysread(BIG, $big, 3) == 3; -print "ok 13\n"; - -fail unless $big eq "big"; -print "ok 14\n"; - -# 705_032_704 = (I32)5_000_000_000 -# See that we don't have "big" in the 705_... spot: -# that would mean that we have a wraparound. -fail unless sysseek(BIG, 705_032_704, SEEK_SET); -print "ok 15\n"; - -my $zero; - -fail unless read(BIG, $zero, 3) == 3; -print "ok 16\n"; - -fail unless $zero eq "\0\0\0"; -print "ok 17\n"; - -explain() if $fail; - -bye(); # does the necessary cleanup - -END { - unlink "big"; # be paranoid about leaving 5 gig files lying around -} - -# eof |
