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use threads::shared; |
use threads::shared; |
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use Fuse; |
use Fuse; |
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use IO::File; |
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use POSIX qw(ENOENT ENOSYS EEXIST EPERM O_RDONLY O_RDWR O_APPEND O_CREAT); |
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); |
use Fcntl qw(S_ISBLK S_ISCHR S_ISFIFO SEEK_SET); |
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require 'syscall.ph'; # for SYS_mknod and SYS_lchown |
require 'syscall.ph'; # for SYS_mknod and SYS_lchown |
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use PerlIO::gzip; |
use PerlIO::gzip; |
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use File::Path; |
use File::Path; |
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use Data::Dump qw/dump/; |
use Data::Dump qw/dump/; |
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use Carp qw/confess/; |
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use IO::File; |
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16 |
my $mount = { |
my $mount = { |
17 |
from => '/tmp/comp', |
from => '/tmp/comp', |
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24 |
my $skip_extensions_regex = qr/\.(?:sw[a-z]|gif|png|jpeg|jpg|avi|rar|zip|bz2|gz|tgz|avi|mpeg|mpg|tmp|temp)$/i; |
my $skip_extensions_regex = qr/\.(?:sw[a-z]|gif|png|jpeg|jpg|avi|rar|zip|bz2|gz|tgz|avi|mpeg|mpg|tmp|temp)$/i; |
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# don't compress files smaller than this |
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my $min_compress_size = 512; |
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29 |
foreach my $dir ( keys %$mount ) { |
foreach my $dir ( keys %$mount ) { |
30 |
if ( ! -e $mount->{$dir} ) { |
if ( ! -e $mount->{$dir} ) { |
31 |
warn "created $mount->{$dir}\n"; |
warn "created $mount->{$dir}\n"; |
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return unpack("L", $buff); |
return unpack("L", $buff); |
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} |
} |
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sub unlink_all { |
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my $file = shift; |
74 |
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warn "# unlink_all( $file )\n"; |
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my $path = fixup( $file ); |
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unlink $path || return 0; |
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my $tmp = $mount->{tmp} . '/' . $file; |
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unlink $tmp if ( -e $tmp ); |
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delete( $pending->{$file} ); |
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return 1; |
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} |
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sub x_getattr { |
sub x_getattr { |
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my ($file) = fixup(shift); |
my ($file) = fixup(shift); |
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my (@list) = lstat($file); |
my (@list) = lstat($file); |
104 |
sub file_copy { |
sub file_copy { |
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my ( $s_opt, $s_path, $d_opt, $d_path ) = @_; |
my ( $s_opt, $s_path, $d_opt, $d_path ) = @_; |
106 |
warn "## file_copy( $s_opt $s_path $d_opt $d_path )\n"; |
warn "## file_copy( $s_opt $s_path $d_opt $d_path )\n"; |
107 |
open(my $s, $s_opt, $s_path ) || die "can't open $s_path: $!"; |
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 ) || die "can't open $d_path: $!"; |
open(my $d, $d_opt, $d_path ) || confess "can't open $d_path: $!"; |
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my $buff; |
my $buff; |
110 |
while( read( $s, $buff, 65535 ) ) { |
while( read( $s, $buff, 65535 ) ) { |
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print $d $buff || die "can't write into $d_path: $!"; |
print $d $buff || confess "can't write into $d_path: $!"; |
112 |
warn ">> ", length($buff), " bytes, offset ", tell($s), " -> ", tell($d), "\n" if $debug; |
warn ">> ", length($buff), " bytes, offset ", tell($s), " -> ", tell($d), "\n" if $debug; |
113 |
} |
} |
114 |
close($d) || warn "can't close $d_path: $!"; |
close($d) || warn "can't close $d_path: $!"; |
115 |
close($s) || warn "can't close $s_path: $!"; |
close($s) || warn "can't close $s_path: $!"; |
116 |
warn "-- $s_path [", -s $s_path, "]\n >>> $d_path [", -s $d_path, "]\n" if $debug; |
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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119 |
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chmod $mode, $d_path || warn "chmod( $mode $d_path ) failed: $!\n"; |
120 |
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chown $uid,$gid,$d_path || warn "chown( $uid $gid $d_path ) failed: $!\n"; |
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utime $atime,$mtime,$d_path || warn "utime( $atime $mtime $d_path ) failed: $!\n"; |
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undef $d; |
124 |
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undef $s; |
125 |
} |
} |
126 |
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sub x_open { |
sub x_open { |
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my ($file) = shift; |
my ($file) = shift; |
129 |
my ($mode) = shift; |
my ($mode) = shift; |
130 |
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131 |
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if ( $file eq '/.debug' ) { |
132 |
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my $path = $mount->{from} . '/.debug'; |
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open( my $debug, '>', $path ) || die "can't open $path: $!"; |
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my $dump = dump( $pending ); |
135 |
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print $debug "pending = $dump\n"; |
136 |
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close($debug); |
137 |
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$pending->{'/.debug'}->{path} = $path; |
138 |
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warn "## created dump $path $dump\n"; |
139 |
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return 0; |
140 |
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} |
141 |
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142 |
$pending->{$file}->{open}++; |
$pending->{$file}->{open}++; |
143 |
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144 |
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my $mode_desc = { |
145 |
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rdonly => $mode && O_RDONLY, |
146 |
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rdwr => $mode && O_RDWR, |
147 |
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append => $mode && O_APPEND, |
148 |
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create => $mode && O_CREAT, |
149 |
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}; |
150 |
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warn "# open( $file, $mode ) pending: ", $pending->{$file}->{open}, " mode: ", dump( $mode_desc ),"\n"; |
151 |
my $fh; |
my $fh; |
152 |
if ( $pending->{$file}->{open} == 1 ) { |
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153 |
warn "# open( $file, $mode )\n"; |
my $path = fixup($file); |
154 |
my $path = fixup($file); |
my $tmp = $mount->{tmp} . '/' . $file; |
155 |
my $tmp = $mount->{tmp} . '/' . $file; |
if ( -e $tmp ) { |
156 |
if ( -e $tmp ) { |
$path = $tmp; |
157 |
$path = $tmp; |
} elsif ( $path =~ m/\.gz$/ ) { |
158 |
} elsif ( $path =~ m/\.gz$/ ) { |
my $dest_path = $tmp; |
159 |
my $dest_path = $tmp; |
$dest_path =~ s!/[^/]+$!!; #!vim-fix |
160 |
$dest_path =~ s!/[^/]+$!!; #!vim-fix |
mkpath $dest_path unless -e $dest_path; |
161 |
mkpath $dest_path unless -e $dest_path; |
file_copy( '<:gzip', $path, '>', $tmp ); |
162 |
file_copy( '<:gzip', $path, '>', $tmp ); |
$path = $tmp; |
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$path = $tmp; |
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} |
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return -$! unless sysopen($fh , $path, $mode); |
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$pending->{$file}->{fh} = $fh; |
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$pending->{$file}->{path} = $path; |
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} elsif ( ! defined( $pending->{$file}->{fh} ) ) { |
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die "can't find fh for $file ", dump($pending); |
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163 |
} |
} |
164 |
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warn ">>> open abs path: $path ", -s $path, " bytes\n"; |
165 |
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return -$! unless sysopen($fh , $path, $mode); |
166 |
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close($fh); |
167 |
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168 |
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$pending->{$file}->{path} = $path; |
169 |
return 0; |
return 0; |
170 |
} |
} |
171 |
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173 |
my ($file,$bufsize,$off) = @_; |
my ($file,$bufsize,$off) = @_; |
174 |
my ($rv) = -ENOSYS(); |
my ($rv) = -ENOSYS(); |
175 |
my $path = fixup( $file ); |
my $path = fixup( $file ); |
176 |
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177 |
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confess "no pending file $file ", dump( $pending ) unless defined( $pending->{$file} ); |
178 |
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179 |
return -ENOENT() unless -e $path; |
return -ENOENT() unless -e $path; |
180 |
my ($fsize) = -s $path; |
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181 |
my $fh = $pending->{$file}->{fh} || die "no fh? ", dump( $pending ); |
my $fh = new IO::File; |
182 |
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return -ENOSYS() unless open($fh,$pending->{$file}->{path}); |
183 |
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184 |
if(seek($fh,$off,SEEK_SET)) { |
if(seek($fh,$off,SEEK_SET)) { |
185 |
read($fh,$rv,$bufsize); |
read($fh,$rv,$bufsize); |
186 |
} |
} |
187 |
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188 |
return $rv; |
return $rv; |
189 |
} |
} |
190 |
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191 |
sub x_write { |
sub x_write { |
192 |
my ($file,$buf,$off) = @_; |
my ($file,$buf,$off) = @_; |
193 |
$pending->{$file}->{write}++; |
$pending->{$file}->{write}++; |
194 |
my ($rv); |
my $rv; |
195 |
my $path = fixup($file); |
my $path = fixup($file); |
196 |
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197 |
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confess "no pending file $file ", dump( $pending ) unless defined( $pending->{$file} ); |
198 |
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199 |
return -ENOENT() unless -e $path; |
return -ENOENT() unless -e $path; |
200 |
my ($fsize) = -s $path; |
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201 |
my $fh = $pending->{$file}->{fh}; |
my $fh = new IO::File; |
202 |
return -ENOSYS() unless $fh; |
return -ENOSYS() unless open($fh,'+<',$pending->{$file}->{path}); |
203 |
if($rv = seek( $fh ,$off,SEEK_SET)) { |
if($rv = seek( $fh ,$off,SEEK_SET)) { |
204 |
$rv = print( $fh $buf ); |
$rv = print( $fh $buf ); |
205 |
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warn "## ", $pending->{$file}->{path}, " $off ",length( $buf ), "\n" if $debug; |
206 |
} |
} |
207 |
$rv = -ENOSYS() unless $rv; |
$rv = -ENOSYS() unless $rv; |
208 |
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close($fh); |
209 |
return length($buf); |
return length($buf); |
210 |
} |
} |
211 |
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212 |
sub err { return (-shift || -$!) } |
sub err { return (-shift || -$!) } |
213 |
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214 |
sub x_readlink { return readlink(fixup(shift)); } |
sub x_readlink { return readlink(fixup(shift)); } |
215 |
sub x_unlink { return unlink(fixup(shift)) ? 0 : -$!; } |
sub x_unlink { return unlink_all( shift ) ? 0 : -$! } |
216 |
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217 |
sub x_symlink { return symlink(shift,fixup(shift)) ? 0 : -$!; } |
sub x_symlink { return symlink(shift,fixup(shift)) ? 0 : -$!; } |
218 |
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267 |
} elsif ( ! defined( $pending->{$file}->{write} ) ) { |
} elsif ( ! defined( $pending->{$file}->{write} ) ) { |
268 |
warn "release $file, not written into\n"; |
warn "release $file, not written into\n"; |
269 |
} elsif ( defined( $pending->{$file}->{open} ) && $pending->{$file}->{open} == 1 ) { |
} elsif ( defined( $pending->{$file}->{open} ) && $pending->{$file}->{open} == 1 ) { |
270 |
close( $pending->{$file}->{fh} ) || warn "can't close $file: $!"; |
my $path = $pending->{$file}->{path} || confess "no path for $file ? ", dump( $pending ); |
271 |
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my $dest = fixup( $file ); |
272 |
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273 |
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# cleanup old compressed copy |
274 |
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if ( $dest =~ /\.gz$/ ) { |
275 |
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warn "## remove old $dest\n"; |
276 |
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unlink $dest || confess "can't remove $dest: $!"; |
277 |
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$dest =~ s/\.gz$//; |
278 |
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} |
279 |
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280 |
if ( $file =~ $skip_extensions_regex ) { |
if ( $file =~ $skip_extensions_regex ) { |
281 |
warn "release $file $mode -- uncompressed\n"; |
warn "release $file $mode -- uncompressed\n"; |
282 |
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file_copy( '<', $path, '>', $dest ) if ( $path ne $dest ); |
283 |
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} elsif ( -s $path < $min_compress_size ) { |
284 |
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warn "release $file -- uncompressed, too small ", -s $path, " bytes\n"; |
285 |
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file_copy( '<', $path, '>', $dest ) if ( $path ne $dest ); |
286 |
} else { |
} else { |
287 |
warn "release $file $mode -- compressing\n"; |
warn "release $file $mode -- compressing\n"; |
288 |
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my $path = $pending->{$file}->{path} || die "no path for $file ? ", dump( $pending ); |
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my $dest = fixup( $file ); |
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if ( $dest =~ /\.gz$/ ) { |
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warn "## remove old $dest\n"; |
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unlink $dest || die "can't remove $dest: $!"; |
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$dest =~ s/\.gz$//; |
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} |
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289 |
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290 |
file_copy( '<', $path, '>:gzip', $dest . '.gz' ); |
file_copy( '<', $path, '>:gzip', $dest . '.gz' ); |
291 |
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