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dpavlin |
1 |
#!/usr/bin/perl -w |
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use strict; |
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use threads; |
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use threads::shared; |
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use Fuse; |
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use POSIX qw(ENOENT ENOSYS EEXIST EPERM O_RDONLY O_RDWR O_APPEND O_CREAT); |
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use Fcntl qw(S_ISBLK S_ISCHR S_ISFIFO SEEK_SET); |
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require 'syscall.ph'; # for SYS_mknod and SYS_lchown |
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use PerlIO::gzip; |
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use File::Path; |
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use Data::Dump qw/dump/; |
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dpavlin |
5 |
use Carp qw/confess/; |
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dpavlin |
10 |
use IO::File; |
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dpavlin |
23 |
use Getopt::Long; |
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dpavlin |
1 |
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dpavlin |
23 |
my $debug = 0; |
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my $fuse_debug = 0; |
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dpavlin |
29 |
my $stats = 1; |
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dpavlin |
23 |
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GetOptions( |
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'debug+' => \$debug, |
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'fuse-debug+' => \$fuse_debug, |
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dpavlin |
29 |
'stats!' => \$stats, |
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dpavlin |
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); |
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dpavlin |
1 |
my $mount = { |
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from => '/tmp/comp', |
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to => '/tmp/no-comp', |
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tmp => '/dev/shm/comp', |
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}; |
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dpavlin |
34 |
my $skip_extensions_regex = qr/gz|gz%|\.(?:sw[a-z]|gif|png|jpeg|jpg|avi|rar|zip|bz2|tgz|avi|mpeg|mpg|tmp|temp)$/i; |
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dpavlin |
1 |
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dpavlin |
5 |
# don't compress files smaller than this |
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dpavlin |
8 |
my $min_compress_size = 512; |
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dpavlin |
5 |
|
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dpavlin |
1 |
foreach my $dir ( keys %$mount ) { |
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if ( ! -e $mount->{$dir} ) { |
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warn "created $mount->{$dir}\n"; |
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mkdir $mount->{$dir} || die "can't create $mount->{$dir}: $!"; |
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} |
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} |
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my $pending; |
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dpavlin |
27 |
sub real_name { |
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my ( $dir, $name ) = @_; |
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if ( -e "$dir/${name}.gz" ) { |
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dpavlin |
28 |
confess "ASSERT: unexpected $dir/$name exists" if -e "$dir/$name"; |
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dpavlin |
27 |
return "${name}.gz"; |
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} |
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dpavlin |
34 |
if ( $name =~ m/\.gz$/ ) { |
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return $name . '%'; # protect (mingle) compressed files |
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} else { |
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return $name; |
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} |
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dpavlin |
27 |
} |
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dpavlin |
1 |
sub fixup { |
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my ( $path ) = @_; |
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dpavlin |
27 |
return $mount->{from} . '/' . real_name( $mount->{from}, $path ); |
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dpavlin |
1 |
} |
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sub original_name { |
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my $p = shift; |
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$p =~ s/\.gz$//; |
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dpavlin |
34 |
$p =~ s/\.gz%$/.gz/; # demungle compressed .gz files |
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dpavlin |
1 |
return $p; |
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}; |
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sub gzip_original_size { |
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my $file = shift; |
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return unless -e $file; |
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my $buff; |
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open(my $fh, $file) || die "can't open $file: $!"; |
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# read($fh, $buff, 10 ); |
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# print dump( unpack("nccVcc", $buff ) ); |
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seek($fh, -4, 2); |
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read($fh, $buff, 4 ); |
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close($fh); |
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return unpack("L", $buff); |
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} |
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sub x_getattr { |
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my ($file) = fixup(shift); |
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my (@list) = lstat($file); |
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$list[7] = gzip_original_size( $file ) if ( $list[7] && $file =~ m/\.gz$/ ); |
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return -$! unless @list; |
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return @list; |
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} |
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sub x_getdir { |
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my ($dirname) = fixup(shift); |
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unless(opendir(DIRHANDLE,$dirname)) { |
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return -ENOENT(); |
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} |
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my @files = map { original_name( $_ ) } readdir(DIRHANDLE); |
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closedir(DIRHANDLE); |
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return (@files, 0); |
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} |
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sub file_copy { |
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my ( $s_opt, $s_path, $d_opt, $d_path ) = @_; |
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dpavlin |
19 |
warn "## file_copy( $s_opt $s_path [",-s $s_path,"] $d_opt $d_path [",-e $d_path ? -s $d_path : 'new',"])\n" if $debug; |
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dpavlin |
5 |
open(my $s, $s_opt, $s_path ) || confess "can't open $s_path: $!\npending = ", dump( $pending ); |
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open(my $d, $d_opt, $d_path ) || confess "can't open $d_path: $!"; |
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dpavlin |
1 |
my $buff; |
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while( read( $s, $buff, 65535 ) ) { |
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dpavlin |
5 |
print $d $buff || confess "can't write into $d_path: $!"; |
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dpavlin |
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warn ">> [", length($buff), "] offset ", tell($s), " -> ", tell($d), "\n" if $debug; |
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dpavlin |
1 |
} |
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close($d) || warn "can't close $d_path: $!"; |
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close($s) || warn "can't close $s_path: $!"; |
| 121 |
dpavlin |
5 |
warn "-- $s_path [", -s $s_path, "] >>> $d_path [", -s $d_path, "]\n" if $debug; |
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my ($mode,$uid,$gid,$atime,$mtime) = (stat $s_path)[2,4,5,8,9]; |
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| 124 |
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chmod $mode, $d_path || warn "chmod( $mode $d_path ) failed: $!\n"; |
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chown $uid,$gid,$d_path || warn "chown( $uid $gid $d_path ) failed: $!\n"; |
| 126 |
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utime $atime,$mtime,$d_path || warn "utime( $atime $mtime $d_path ) failed: $!\n"; |
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dpavlin |
8 |
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| 128 |
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undef $d; |
| 129 |
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undef $s; |
| 130 |
dpavlin |
1 |
} |
| 131 |
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| 132 |
dpavlin |
29 |
sub tmp_path { |
| 133 |
dpavlin |
28 |
my $file = shift; |
| 134 |
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| 135 |
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my $path = fixup( $file ); |
| 136 |
dpavlin |
29 |
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| 137 |
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my $op = 'UNKNOWN'; |
| 138 |
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| 139 |
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if (defined( $pending->{$file} )) { |
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$path = $pending->{$file}->{path} || confess "no path for $file in ",dump( $pending ); |
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$op = 'opened'; |
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} else { |
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my $tmp = $mount->{tmp} . '/' . $file; |
| 144 |
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if ( -e $tmp ) { |
| 145 |
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$path = $tmp; |
| 146 |
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$op = 'existing'; |
| 147 |
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} elsif ( $path =~ m/\.gz$/ ) { |
| 148 |
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my $dest_path = $tmp; |
| 149 |
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$dest_path =~ s!/[^/]+$!!; #!vim-fix |
| 150 |
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mkpath $dest_path unless -e $dest_path; |
| 151 |
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if ( -s $path ) { |
| 152 |
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file_copy( '<:gzip', $path, '>', $tmp ) |
| 153 |
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} else { |
| 154 |
dpavlin |
33 |
confess "ASSERT: filesystem corruption, $path is zero size in ",dump( $pending ); |
| 155 |
dpavlin |
29 |
} |
| 156 |
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$path = $tmp; |
| 157 |
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$op = 'created'; |
| 158 |
dpavlin |
28 |
} |
| 159 |
dpavlin |
29 |
confess "ASSERT: path shouldn't exist for $file in ", dump( $pending ) if defined( $pending->{$file}->{path} ); |
| 160 |
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confess "ASSERT: open shouldn't exist for $file in ", dump( $pending ) if defined( $pending->{$file}->{open} ); |
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$pending->{$file}->{path} = $path; |
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$pending->{$file}->{open} = 0; # not really opened, just uncompressed |
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dpavlin |
33 |
warn "## tmp_file( $file ) $op $path [", -s $path, "]\n" if $debug; |
| 164 |
dpavlin |
28 |
} |
| 165 |
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return $path; |
| 166 |
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} |
| 167 |
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| 168 |
dpavlin |
29 |
sub compress_file2path { |
| 169 |
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my ( $file, $path ) = @_; |
| 170 |
dpavlin |
28 |
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| 171 |
dpavlin |
29 |
my $dest = fixup( $file ); |
| 172 |
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| 173 |
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if ( defined($pending->{$file}) ) { |
| 174 |
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my $pending_path = $pending->{$file}->{path} || confess "no path for $file in ",dump( $pending ); |
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| 176 |
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if ( $pending->{$file}->{open} > 1 ) { |
| 177 |
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warn "$file used ", $pending->{$file}->{open}, " times, delaying compression\n"; |
| 178 |
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return; |
| 179 |
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} elsif ( ! $path ) { |
| 180 |
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$path = $pending_path; |
| 181 |
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} elsif ( $pending_path ne $path ) { |
| 182 |
dpavlin |
33 |
confess "ASSERT: compressing into $path instead of $pending_path"; |
| 183 |
dpavlin |
29 |
} |
| 184 |
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} |
| 185 |
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| 186 |
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confess "need path" unless $path; |
| 187 |
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| 188 |
dpavlin |
28 |
# cleanup old compressed copy |
| 189 |
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if ( $dest =~ /\.gz$/ ) { |
| 190 |
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warn "## remove old $dest\n"; |
| 191 |
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unlink $dest || confess "can't remove $dest: $!"; |
| 192 |
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$dest =~ s/\.gz$//; |
| 193 |
dpavlin |
29 |
confess "ASSERT: uncompressed $dest shouldn't exist!" if -e $dest; |
| 194 |
dpavlin |
28 |
} |
| 195 |
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| 196 |
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if ( $path =~ $skip_extensions_regex ) { |
| 197 |
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warn "$path [",-s $path,"] skipped compression\n"; |
| 198 |
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file_copy( '<', $path, '>', $dest ) if ( $path ne $dest ); |
| 199 |
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} elsif ( -s $path < $min_compress_size ) { |
| 200 |
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warn "$path [",-s $path,"] uncompressed, too small\n"; |
| 201 |
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file_copy( '<', $path, '>', $dest ) if ( $path ne $dest ); |
| 202 |
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} else { |
| 203 |
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warn "$path [",-s $path,"] compressing\n"; |
| 204 |
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| 205 |
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my $comp = $dest . '.gz'; |
| 206 |
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file_copy( '<', $path, '>:gzip', $comp ); |
| 207 |
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| 208 |
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my ( $size_path, $size_comp ) = ( -s $path, -s $comp ); |
| 209 |
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| 210 |
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if ( $size_path <= $size_comp ) { |
| 211 |
dpavlin |
33 |
warn ">>> $size_path <= $size_comp leaving uncompressed $dest\n"; |
| 212 |
dpavlin |
28 |
unlink $comp || confess "can't remove: $comp: $!"; |
| 213 |
dpavlin |
33 |
file_copy( '<', $path, '>', $dest ) if ( $path ne $dest ); |
| 214 |
dpavlin |
28 |
} else { |
| 215 |
dpavlin |
29 |
warn ">>> compressed $size_path -> $size_comp ",int(($size_comp * 100) / $size_path),"% $comp\n"; |
| 216 |
dpavlin |
30 |
|
| 217 |
dpavlin |
28 |
# FIXME add timeout to remove uncompressed version? |
| 218 |
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unlink $path || confess "can't remove $path: $!"; |
| 219 |
dpavlin |
30 |
|
| 220 |
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if ( -e $dest ) { |
| 221 |
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warn "## cleanup uncompressed $dest\n" if $debug; |
| 222 |
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unlink $dest || confess "can't remove $dest: $!"; |
| 223 |
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} |
| 224 |
dpavlin |
28 |
} |
| 225 |
dpavlin |
30 |
|
| 226 |
dpavlin |
28 |
} |
| 227 |
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} |
| 228 |
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| 229 |
dpavlin |
1 |
sub x_open { |
| 230 |
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my ($file) = shift; |
| 231 |
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my ($mode) = shift; |
| 232 |
dpavlin |
12 |
|
| 233 |
|
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if ( $file eq '/.debug' ) { |
| 234 |
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my $path = $mount->{from} . '/.debug'; |
| 235 |
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open( my $debug, '>', $path ) || die "can't open $path: $!"; |
| 236 |
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my $dump = dump( $pending ); |
| 237 |
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print $debug "pending = $dump\n"; |
| 238 |
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close($debug); |
| 239 |
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$pending->{'/.debug'}->{path} = $path; |
| 240 |
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warn "## created dump $path $dump\n"; |
| 241 |
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return 0; |
| 242 |
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} |
| 243 |
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| 244 |
dpavlin |
8 |
my $mode_desc = { |
| 245 |
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rdonly => $mode && O_RDONLY, |
| 246 |
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rdwr => $mode && O_RDWR, |
| 247 |
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append => $mode && O_APPEND, |
| 248 |
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create => $mode && O_CREAT, |
| 249 |
dpavlin |
14 |
trunc => $mode && O_TRUNC, |
| 250 |
dpavlin |
8 |
}; |
| 251 |
dpavlin |
28 |
|
| 252 |
dpavlin |
29 |
my $path = tmp_path( $file ); |
| 253 |
dpavlin |
28 |
|
| 254 |
dpavlin |
19 |
warn "## open( $file, $mode ) pending: ", $pending->{$file}->{open}, " mode $mode: ", dump( $mode_desc )," $path [", -s $path, "]\n" if $debug; |
| 255 |
dpavlin |
28 |
|
| 256 |
dpavlin |
1 |
my $fh; |
| 257 |
dpavlin |
8 |
|
| 258 |
dpavlin |
21 |
if ( sysopen($fh , $path, $mode) ) { |
| 259 |
|
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close($fh) || confess "can't close $path: $!"; |
| 260 |
dpavlin |
29 |
warn "<<< sysopen $path [", -e $path ? -s $path : 'new' , "]\n"; |
| 261 |
|
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$pending->{$file}->{open}++; |
| 262 |
dpavlin |
21 |
return 0; |
| 263 |
|
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} else { |
| 264 |
dpavlin |
26 |
warn "ERROR: can't open $path -- $!"; |
| 265 |
dpavlin |
21 |
return -$!; |
| 266 |
|
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} |
| 267 |
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| 268 |
dpavlin |
1 |
} |
| 269 |
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| 270 |
|
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sub x_read { |
| 271 |
|
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my ($file,$bufsize,$off) = @_; |
| 272 |
|
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my ($rv) = -ENOSYS(); |
| 273 |
|
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my $path = fixup( $file ); |
| 274 |
dpavlin |
10 |
|
| 275 |
dpavlin |
12 |
confess "no pending file $file ", dump( $pending ) unless defined( $pending->{$file} ); |
| 276 |
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| 277 |
dpavlin |
1 |
return -ENOENT() unless -e $path; |
| 278 |
dpavlin |
10 |
|
| 279 |
|
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my $fh = new IO::File; |
| 280 |
|
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return -ENOSYS() unless open($fh,$pending->{$file}->{path}); |
| 281 |
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| 282 |
dpavlin |
1 |
if(seek($fh,$off,SEEK_SET)) { |
| 283 |
|
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read($fh,$rv,$bufsize); |
| 284 |
dpavlin |
29 |
$pending->{$file}->{read} += length($rv) if $stats; |
| 285 |
dpavlin |
1 |
} |
| 286 |
dpavlin |
10 |
|
| 287 |
dpavlin |
1 |
return $rv; |
| 288 |
|
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} |
| 289 |
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| 290 |
|
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sub x_write { |
| 291 |
|
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my ($file,$buf,$off) = @_; |
| 292 |
dpavlin |
25 |
|
| 293 |
dpavlin |
10 |
my $rv; |
| 294 |
dpavlin |
1 |
my $path = fixup($file); |
| 295 |
dpavlin |
10 |
|
| 296 |
dpavlin |
12 |
confess "no pending file $file ", dump( $pending ) unless defined( $pending->{$file} ); |
| 297 |
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|
| 298 |
dpavlin |
1 |
return -ENOENT() unless -e $path; |
| 299 |
dpavlin |
10 |
|
| 300 |
dpavlin |
26 |
$path = $pending->{$file}->{path} || confess "no path for $file in ", dump( $pending ); |
| 301 |
dpavlin |
29 |
confess "write into non-existant $path for $file" unless -e $path; |
| 302 |
dpavlin |
26 |
|
| 303 |
dpavlin |
10 |
my $fh = new IO::File; |
| 304 |
dpavlin |
26 |
return -ENOSYS() unless open($fh,'+<',$path); |
| 305 |
dpavlin |
1 |
if($rv = seek( $fh ,$off,SEEK_SET)) { |
| 306 |
|
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$rv = print( $fh $buf ); |
| 307 |
dpavlin |
29 |
my $size = length($buf); |
| 308 |
|
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warn "## write $path offset $off [$size]\n" if $debug; |
| 309 |
|
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$pending->{$file}->{write} += $size; |
| 310 |
dpavlin |
1 |
} |
| 311 |
|
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$rv = -ENOSYS() unless $rv; |
| 312 |
dpavlin |
26 |
close($fh) || warn "can't close $path: $!"; |
| 313 |
dpavlin |
1 |
return length($buf); |
| 314 |
|
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} |
| 315 |
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| 316 |
|
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sub err { return (-shift || -$!) } |
| 317 |
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|
| 318 |
dpavlin |
27 |
sub x_readlink { return readlink(fixup(shift)); } |
| 319 |
|
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|
| 320 |
dpavlin |
25 |
sub x_unlink { |
| 321 |
|
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my $file = shift; |
| 322 |
|
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my $path = fixup( $file ); |
| 323 |
dpavlin |
1 |
|
| 324 |
dpavlin |
25 |
if ( $file =~ m#\Q/.fuse_hidden\E# ) { |
| 325 |
|
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return unlink $path ? 0 : -$1; |
| 326 |
|
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} |
| 327 |
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| 328 |
|
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warn "# unlink( $file )\n"; |
| 329 |
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|
| 330 |
|
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unlink $path || return 0; |
| 331 |
|
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|
| 332 |
|
|
my $tmp = $mount->{tmp} . '/' . $file; |
| 333 |
|
|
unlink $tmp if ( -e $tmp ); |
| 334 |
|
|
|
| 335 |
|
|
delete( $pending->{$file} ); |
| 336 |
|
|
return 0; |
| 337 |
|
|
} |
| 338 |
|
|
|
| 339 |
dpavlin |
27 |
sub x_symlink { |
| 340 |
|
|
my ($from,$to) = @_; |
| 341 |
dpavlin |
1 |
|
| 342 |
dpavlin |
27 |
my $from_path = $from; #fixup( $from ); |
| 343 |
|
|
my $to_path = fixup( $to ); |
| 344 |
|
|
|
| 345 |
|
|
my $rv = symlink( $from_path, $to_path ) ? 0 : -$!; |
| 346 |
|
|
warn "# symlink( $from_path -> $to_path ) = $rv\n" if $debug; |
| 347 |
|
|
|
| 348 |
|
|
my $tmp = $mount->{tmp} . '/' . $from; |
| 349 |
|
|
if ( -e $tmp ) { |
| 350 |
|
|
my $tmp_to = $mount->{$tmp} . '/' . $to; |
| 351 |
|
|
symlink( $tmp, $tmp_to ) || confess "can't symlink $tmp -> $tmp_to: $!"; |
| 352 |
|
|
} |
| 353 |
|
|
return $rv; |
| 354 |
|
|
} |
| 355 |
|
|
|
| 356 |
|
|
sub x_link { |
| 357 |
|
|
my ($from,$to) = @_; |
| 358 |
|
|
|
| 359 |
|
|
my $from_path = fixup($from); |
| 360 |
|
|
my $to_path = fixup($to); |
| 361 |
|
|
$to_path .= '.gz' if ( $from_path =~ m/\.gz$/ && $to_path !~ m/\.gz$/ ); |
| 362 |
|
|
|
| 363 |
|
|
my $rv = link( $from_path, $to_path ) ? 0 : -$!; |
| 364 |
|
|
|
| 365 |
|
|
warn "# link( $from_path -> $to_path ) = $rv\n" if $debug; |
| 366 |
|
|
|
| 367 |
|
|
return $rv; |
| 368 |
|
|
} |
| 369 |
|
|
|
| 370 |
dpavlin |
1 |
sub x_rename { |
| 371 |
dpavlin |
18 |
my ($old,$new) = @_; |
| 372 |
|
|
my $old_path = fixup($old); |
| 373 |
|
|
my $new_path = fixup($new); |
| 374 |
|
|
$new_path .= '.gz' if ( $old_path =~ m/\.gz$/ && $new_path !~ m/\.gz$/ ); |
| 375 |
|
|
|
| 376 |
|
|
my $err = rename($old_path,$new_path) ? 0 : -ENOENT(); |
| 377 |
|
|
warn "## rename( $old_path => $new_path ) = $err\n"; |
| 378 |
|
|
|
| 379 |
|
|
my $tmp = $mount->{tmp} . '/' . $old; |
| 380 |
|
|
if ( -e $tmp ) { |
| 381 |
dpavlin |
25 |
if ( $new =~ m#\Q/.fuse_hidden\E# ) { |
| 382 |
dpavlin |
33 |
unlink $tmp || confess "can't unlink $tmp for $new"; |
| 383 |
dpavlin |
25 |
} else { |
| 384 |
|
|
my $new_tmp = $mount->{tmp} . '/' . $new; |
| 385 |
|
|
rename $tmp, $new_tmp || confess "can't rename $tmp -> $new_tmp : $!"; |
| 386 |
|
|
} |
| 387 |
dpavlin |
18 |
} |
| 388 |
|
|
|
| 389 |
dpavlin |
20 |
if (defined( $pending->{$old} )) { |
| 390 |
|
|
$pending->{$new} = $pending->{$old}; |
| 391 |
|
|
|
| 392 |
|
|
my $path = $pending->{$old}->{path}; |
| 393 |
|
|
$path =~ s/\Q$old\E/$new/; |
| 394 |
|
|
$pending->{$new}->{path} = $path; |
| 395 |
|
|
|
| 396 |
dpavlin |
25 |
delete( $pending->{$old} ); |
| 397 |
|
|
warn "## tweaking pending to ", dump( $pending ) if $debug; |
| 398 |
dpavlin |
20 |
} |
| 399 |
|
|
|
| 400 |
dpavlin |
1 |
return $err; |
| 401 |
|
|
} |
| 402 |
|
|
|
| 403 |
|
|
sub x_chown { |
| 404 |
dpavlin |
26 |
my ($file,$uid,$gid) = @_; |
| 405 |
|
|
my $path = fixup($file); |
| 406 |
dpavlin |
1 |
print "nonexistent $path\n" unless -e $path; |
| 407 |
|
|
# perl's chown() does not chown symlinks, it chowns the symlink's |
| 408 |
|
|
# target. it fails when the link's target doesn't exist, because |
| 409 |
|
|
# the stat64() syscall fails. |
| 410 |
|
|
# this causes error messages when unpacking symlinks in tarballs. |
| 411 |
|
|
my ($err) = syscall(&SYS_lchown,$path,$uid,$gid,$path) ? -$! : 0; |
| 412 |
dpavlin |
26 |
|
| 413 |
|
|
my $tmp = $mount->{tmp} . '/' . $file; |
| 414 |
|
|
syscall(&SYS_lchown,$file,$uid,$gid,$path) if -e $tmp; |
| 415 |
|
|
|
| 416 |
dpavlin |
1 |
return $err; |
| 417 |
|
|
} |
| 418 |
|
|
|
| 419 |
|
|
sub x_chmod { |
| 420 |
|
|
my ($path) = fixup(shift); |
| 421 |
|
|
my ($mode) = shift; |
| 422 |
|
|
my ($err) = chmod($mode,$path) ? 0 : -$!; |
| 423 |
|
|
return $err; |
| 424 |
|
|
} |
| 425 |
|
|
|
| 426 |
dpavlin |
14 |
sub x_truncate { |
| 427 |
|
|
my ( $file,$size ) = @_; |
| 428 |
dpavlin |
28 |
|
| 429 |
|
|
#confess "no pending file $file to truncate in ", dump( $pending ) unless defined( $pending->{$file} ); |
| 430 |
|
|
|
| 431 |
dpavlin |
29 |
my $path = tmp_path( $file ); |
| 432 |
dpavlin |
14 |
my $rv = truncate( $path, $size ) ? 0 : -$! ; |
| 433 |
dpavlin |
21 |
warn "## truncate( $file $size ) $path [", -s $path, "] = $rv\n" if $debug; |
| 434 |
dpavlin |
29 |
compress_file2path( $file, $path ); |
| 435 |
dpavlin |
27 |
|
| 436 |
dpavlin |
14 |
return $rv; |
| 437 |
|
|
} |
| 438 |
dpavlin |
28 |
|
| 439 |
dpavlin |
1 |
sub x_utime { return utime($_[1],$_[2],fixup($_[0])) ? 0:-$!; } |
| 440 |
|
|
|
| 441 |
|
|
sub x_mkdir { my ($name, $perm) = @_; return 0 if mkdir(fixup($name),$perm); return -$!; } |
| 442 |
|
|
sub x_rmdir { return 0 if rmdir fixup(shift); return -$!; } |
| 443 |
|
|
|
| 444 |
|
|
sub x_mknod { |
| 445 |
|
|
# since this is called for ALL files, not just devices, I'll do some checks |
| 446 |
|
|
# and possibly run the real mknod command. |
| 447 |
|
|
my ($file, $modes, $dev) = @_; |
| 448 |
|
|
$file = fixup($file); |
| 449 |
|
|
$! = 0; |
| 450 |
|
|
syscall(&SYS_mknod,$file,$modes,$dev); |
| 451 |
|
|
return -$!; |
| 452 |
|
|
} |
| 453 |
|
|
|
| 454 |
|
|
sub x_release { |
| 455 |
|
|
my ( $file, $mode ) = @_; |
| 456 |
dpavlin |
25 |
|
| 457 |
dpavlin |
1 |
if ( ! defined( $pending->{$file} ) ) { |
| 458 |
|
|
warn "release $file, NO PENDING DATA\n"; |
| 459 |
|
|
return 0; |
| 460 |
|
|
} elsif ( ! defined( $pending->{$file}->{write} ) ) { |
| 461 |
|
|
warn "release $file, not written into\n"; |
| 462 |
dpavlin |
29 |
} elsif ( $file =~ m#\Q/.fuse_hidden\E# ) { |
| 463 |
|
|
warn "release internal $file\n" if $debug; |
| 464 |
dpavlin |
1 |
} else { |
| 465 |
dpavlin |
29 |
compress_file2path( $file ); |
| 466 |
dpavlin |
1 |
} |
| 467 |
dpavlin |
29 |
|
| 468 |
dpavlin |
13 |
$pending->{$file}->{open}--; |
| 469 |
|
|
if ( $pending->{$file}->{open} == 0 ) { |
| 470 |
|
|
warn "## cleanup pending $file [", -s fixup($file), "]\n" if $debug; |
| 471 |
|
|
delete( $pending->{$file} ); |
| 472 |
|
|
} |
| 473 |
dpavlin |
29 |
|
| 474 |
dpavlin |
1 |
return 0; |
| 475 |
|
|
} |
| 476 |
|
|
|
| 477 |
|
|
# kludge |
| 478 |
|
|
sub x_statfs {return 255,1000000,500000,1000000,500000,4096} |
| 479 |
|
|
Fuse::main( |
| 480 |
|
|
mountpoint=>$mount->{to}, |
| 481 |
|
|
getattr =>"main::x_getattr", |
| 482 |
|
|
readlink=>"main::x_readlink", |
| 483 |
|
|
getdir =>"main::x_getdir", |
| 484 |
|
|
mknod =>"main::x_mknod", |
| 485 |
|
|
mkdir =>"main::x_mkdir", |
| 486 |
|
|
unlink =>"main::x_unlink", |
| 487 |
|
|
rmdir =>"main::x_rmdir", |
| 488 |
|
|
symlink =>"main::x_symlink", |
| 489 |
|
|
rename =>"main::x_rename", |
| 490 |
|
|
link =>"main::x_link", |
| 491 |
|
|
chmod =>"main::x_chmod", |
| 492 |
|
|
chown =>"main::x_chown", |
| 493 |
|
|
truncate=>"main::x_truncate", |
| 494 |
|
|
utime =>"main::x_utime", |
| 495 |
|
|
open =>"main::x_open", |
| 496 |
|
|
read =>"main::x_read", |
| 497 |
|
|
write =>"main::x_write", |
| 498 |
|
|
statfs =>"main::x_statfs", |
| 499 |
|
|
release =>"main::x_release", |
| 500 |
|
|
# threaded=>1, |
| 501 |
dpavlin |
23 |
debug => $fuse_debug, |
| 502 |
dpavlin |
1 |
); |
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