1 |
#!/usr/bin/perl |
#!/usr/bin/perl |
2 |
|
|
3 |
use POSIX qw(ENOENT EISDIR EINVAL); |
use POSIX qw(ENOENT EISDIR EINVAL ENOSYS O_RDWR); |
4 |
use Fuse; |
use Fuse; |
5 |
|
|
6 |
use DBI; |
use DBI; |
15 |
from template ; |
from template ; |
16 |
}; |
}; |
17 |
|
|
18 |
my $sql_content = q{ |
my $sql_read = q{ |
19 |
select template |
select template |
20 |
from template |
from template |
21 |
where oid = ?; |
where oid = ?; |
22 |
|
}; |
23 |
|
|
24 |
|
my $sql_update = q{ |
25 |
|
update template |
26 |
|
set template = ? |
27 |
|
where oid = ?; |
28 |
}; |
}; |
29 |
|
|
30 |
|
|
31 |
my $connect = "DBI:Pg:dbname=webgui"; |
my $connect = "DBI:Pg:dbname=webgui"; |
32 |
|
|
33 |
my $dbh = DBI->connect($connect,"","") || die $DBI::errstr; |
my $dbh = DBI->connect($connect,"","", { AutoCommit => 0 }) || die $DBI::errstr; |
34 |
|
|
35 |
print STDERR "$sql_filenames\n"; |
print "start transaction\n"; |
36 |
|
#$dbh->begin_work || die $dbh->errstr; |
37 |
|
|
38 |
my $sth_filenames = $dbh->prepare($sql_filenames) || die $dbh->errstr(); |
my $sth_filenames = $dbh->prepare($sql_filenames) || die $dbh->errstr(); |
39 |
$sth_filenames->execute() || die $sth_filenames->errstr(); |
$sth_filenames->execute() || die $sth_filenames->errstr(); |
40 |
|
|
41 |
my $sth_content = $dbh->prepare($sql_content) || die $dbh->errstr(); |
my $sth_read = $dbh->prepare($sql_read) || die $dbh->errstr(); |
42 |
|
my $sth_update = $dbh->prepare($sql_update) || die $dbh->errstr(); |
|
print "#",join(",",@{ $sth_filenames->{NAME} }),"\n"; |
|
43 |
|
|
44 |
my $ctime_start = time(); |
my $ctime_start = time(); |
45 |
|
|
87 |
} |
} |
88 |
} |
} |
89 |
|
|
90 |
print scalar (keys %dirs), " dirs:",join(" ",keys %dirs),"\n"; |
print "found ",scalar(keys %files)-scalar(keys %dirs)," files, ",scalar(keys %dirs), " dirs\n"; |
91 |
|
|
92 |
sub filename_fixup { |
sub filename_fixup { |
93 |
my ($file) = shift; |
my ($file) = shift; |
129 |
} else { |
} else { |
130 |
$out{$f}++ if ($f =~ /^[^\/]+$/); |
$out{$f}++ if ($f =~ /^[^\/]+$/); |
131 |
} |
} |
|
print "f: $_ -> $f\n"; |
|
132 |
} |
} |
133 |
if (! %out) { |
if (! %out) { |
134 |
$out{'no files? bug?'}++; |
$out{'no files? bug?'}++; |
139 |
|
|
140 |
sub e_open { |
sub e_open { |
141 |
# VFS sanity check; it keeps all the necessary state, not much to do here. |
# VFS sanity check; it keeps all the necessary state, not much to do here. |
142 |
my ($file) = filename_fixup(shift); |
my $file = filename_fixup(shift); |
143 |
|
my $flags = shift; |
144 |
|
|
145 |
return -ENOENT() unless exists($files{$file}); |
return -ENOENT() unless exists($files{$file}); |
146 |
return -EISDIR() unless exists($files{$file}{id}); |
return -EISDIR() unless exists($files{$file}{id}); |
147 |
|
|
148 |
if (!exists($files{$file}{cont})) { |
if (!exists($files{$file}{cont})) { |
149 |
$sth_content->execute($files{$file}{id}); |
$sth_read->execute($files{$file}{id}) || die $sth_read->errstr; |
150 |
$files{$file}{cont} = $sth_content->fetchrow_array; |
$files{$file}{cont} = $sth_read->fetchrow_array; |
151 |
|
print "file '$file' content read in cache\n"; |
152 |
} |
} |
153 |
print "open '$file' ",length($files{$file}{cont})," bytes\n"; |
print "open '$file' ",length($files{$file}{cont})," bytes\n"; |
154 |
return 0; |
return 0; |
175 |
return substr($files{$file}{cont},$off,$buf); |
return substr($files{$file}{cont},$off,$buf); |
176 |
} |
} |
177 |
|
|
178 |
|
sub clear_cont { |
179 |
|
print "transaction rollback\n"; |
180 |
|
$dbh->rollback || die $dbh->errstr; |
181 |
|
print "invalidate all cached content\n"; |
182 |
|
foreach my $f (keys %files) { |
183 |
|
delete $files{$f}{cont}; |
184 |
|
} |
185 |
|
print "begin new transaction\n"; |
186 |
|
$dbh->begin_work || die $dbh->errstr; |
187 |
|
} |
188 |
|
|
189 |
|
|
190 |
|
sub update_db { |
191 |
|
my $file = shift || die; |
192 |
|
|
193 |
|
if (!$sth_update->execute($files{$file}{cont},$files{$file}{id})) { |
194 |
|
print "update problem: ",$sth_update->errstr; |
195 |
|
clear_cont; |
196 |
|
return 0; |
197 |
|
} else { |
198 |
|
if (! $dbh->commit) { |
199 |
|
print "ERROR: commit problem: ",$sth_update->errstr; |
200 |
|
clear_cont; |
201 |
|
return 0; |
202 |
|
} |
203 |
|
print "updated '$file' [",$files{$file}{id},"]\n"; |
204 |
|
} |
205 |
|
return 1; |
206 |
|
} |
207 |
|
|
208 |
|
sub e_write { |
209 |
|
my $file = filename_fixup(shift); |
210 |
|
my ($buf,$off) = @_; |
211 |
|
|
212 |
|
return -ENOENT() unless exists($files{$file}); |
213 |
|
|
214 |
|
my $len = length($files{$file}{cont}); |
215 |
|
|
216 |
|
print "write '$file' [$len bytes] offset $off length $buf\n"; |
217 |
|
|
218 |
|
$files{$file}{cont} = |
219 |
|
substr($files{$file}{cont},0,$off) . |
220 |
|
$buf . |
221 |
|
substr($files{$file}{cont},$off+length($buf)); |
222 |
|
|
223 |
|
if (! update_db($file)) { |
224 |
|
return -ENOSYS(); |
225 |
|
} else { |
226 |
|
return length($buf); |
227 |
|
} |
228 |
|
} |
229 |
|
|
230 |
|
sub e_truncate { |
231 |
|
my $file = filename_fixup(shift); |
232 |
|
my $size = shift; |
233 |
|
|
234 |
|
$files{$file}{cont} = substr($files{$file}{cont},0,$size); |
235 |
|
return 0 |
236 |
|
}; |
237 |
|
|
238 |
|
|
239 |
|
sub e_utime { |
240 |
|
my ($atime,$mtime,$file) = @_; |
241 |
|
$file = filename_fixup($file); |
242 |
|
|
243 |
|
return -ENOENT() unless exists($files{$file}); |
244 |
|
|
245 |
|
$files{$file}{time} = $mtime; |
246 |
|
return 0; |
247 |
|
} |
248 |
|
|
249 |
sub e_statfs { return 255, 1, 1, 1, 1, 2 } |
sub e_statfs { return 255, 1, 1, 1, 1, 2 } |
250 |
|
|
251 |
# If you run the script directly, it will run fusermount, which will in turn |
# If you run the script directly, it will run fusermount, which will in turn |
259 |
open=>\&e_open, |
open=>\&e_open, |
260 |
statfs=>\&e_statfs, |
statfs=>\&e_statfs, |
261 |
read=>\&e_read, |
read=>\&e_read, |
262 |
debug=>1, |
write=>\&e_write, |
263 |
|
utime=>\&e_utime, |
264 |
|
truncate=>\&e_truncate, |
265 |
|
debug=>0, |
266 |
); |
); |