first try at making this module (late commit)

[Fuse-DBI] / DBI.pm

diff --git a/DBI.pm b/DBI.pm
index 572af5b..58fbdce 100755 (executable)
--- a/DBI.pm
+++ b/DBI.pm
@@ -9,6 +9,10 @@ use warnings;
 use POSIX qw(ENOENT EISDIR EINVAL ENOSYS O_RDWR);
 use Fuse;
 use DBI;
 use POSIX qw(ENOENT EISDIR EINVAL ENOSYS O_RDWR);
 use Fuse;
 use DBI;

+use Carp;
+use Proc::Simple;
+use Data::Dumper;
+

 
 our $VERSION = '0.01';
 
 
 our $VERSION = '0.01';
 


@@ -19,7 +23,7 @@ Fuse::DBI - mount your database as filesystem and use it
 =head1 SYNOPSIS
 
   use Fuse::DBI;
 =head1 SYNOPSIS
 
   use Fuse::DBI;

-  Fuse::DBI->run( ... );
+  Fuse::DBI->mount( ... );

 
 See L<run> below for examples how to set parametars.
 
 
 See L<run> below for examples how to set parametars.
 


@@ -39,11 +43,11 @@ It's actually opposite of Oracle's intention to put everything into database.
 
 =cut
 
 
 =cut
 

-=head2 run
+=head2 mount

 
 Mount your database as filesystem.
 
 
 Mount your database as filesystem.
 

-  Fuse::DBI->run({
+  my $mnt = Fuse::DBI->mount({

        filenames => 'select name from filenamefilenames,
        read => 'sql read',
        update => 'sql update',
        filenames => 'select name from filenamefilenames,
        read => 'sql read',
        update => 'sql update',


@@ -58,16 +62,22 @@ my $dbh;
 my $sth;
 my $ctime_start;
 
 my $sth;
 my $ctime_start;
 

-sub run {
-       my $self = shift
+sub read_filenames;
+
+sub mount {
+       my $class = shift;
+       my $self = {};
+       bless($self, $class);

 
 

-       my $arg = {@_};
+       my $arg = shift;

 
 

-       carp "run needs 'dsn' to connect to (e.g. dsn => 'DBI:Pg:dbname=test')" unless ($arg->{'dsn'});
-       carp "run needs 'mount' as mountpoint" unless ($arg->{'mount'});
+       print Dumper($arg);
+
+       carp "mount needs 'dsn' to connect to (e.g. dsn => 'DBI:Pg:dbname=test')" unless ($arg->{'dsn'});
+       carp "mount needs 'mount' as mountpoint" unless ($arg->{'mount'});

 
        foreach (qw(filenames read update)) {
 
        foreach (qw(filenames read update)) {

-               carp "run needs '$_' SQL" unless ($arg->{$_});
+               carp "mount needs '$_' SQL" unless ($arg->{$_});

        }
 
        $dbh = DBI->connect($arg->{'dsn'},$arg->{'user'},$arg->{'password'}, { AutoCommit => 0 }) || die $DBI::errstr;
        }
 
        $dbh = DBI->connect($arg->{'dsn'},$arg->{'user'},$arg->{'password'}, { AutoCommit => 0 }) || die $DBI::errstr;


@@ -84,24 +94,52 @@ sub run {
 
        read_filenames;
 
 
        read_filenames;
 

-       Fuse::main(
-               mountpoint=>$arg->{'mount'},
-               getattr=>\&e_getattr,
-               getdir=>\&e_getdir,
-               open=>\&e_open,
-               statfs=>\&e_statfs,
-               read=>\&e_read,
-               write=>\&e_write,
-               utime=>\&e_utime,
-               truncate=>\&e_truncate,
-               debug=>0,
-       );
+       $self->{'proc'} = Proc::Simple->new();
+       $self->{'proc'}->kill_on_destroy(1);
+
+       $self->{'proc'}->start( sub {
+               Fuse::main(
+                       mountpoint=>$arg->{'mount'},
+                       getattr=>\&e_getattr,
+                       getdir=>\&e_getdir,
+                       open=>\&e_open,
+                       statfs=>\&e_statfs,
+                       read=>\&e_read,
+                       write=>\&e_write,
+                       utime=>\&e_utime,
+                       truncate=>\&e_truncate,
+                       debug=>0,
+               );
+       } );
+
+       $self ? return $self : return undef;

 };
 
 };
 

+=head2 umount
+
+Unmount your database as filesystem.
+
+  $mnt->umount;
+
+This will also kill background process which is translating
+database to filesystem.
+
+=cut
+
+sub umount {
+       my $self = shift;
+
+       confess "no process running?" unless ($self->{'proc'});
+       $self->{'proc'}->kill;
+}
+
+

 my %files;
 my %dirs;
 
 sub read_filenames {
 my %files;
 my %dirs;
 
 sub read_filenames {

+       my $self = shift;
+

        # create empty filesystem
        (%files) = (
                '.' => {
        # create empty filesystem
        (%files) = (
                '.' => {