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-rw-r--r--install/5.005/DBD-Pg-1.22-fixvercmp/eg/lotest.pl74
1 files changed, 74 insertions, 0 deletions
diff --git a/install/5.005/DBD-Pg-1.22-fixvercmp/eg/lotest.pl b/install/5.005/DBD-Pg-1.22-fixvercmp/eg/lotest.pl
new file mode 100644
index 0000000..6192c49
--- /dev/null
+++ b/install/5.005/DBD-Pg-1.22-fixvercmp/eg/lotest.pl
@@ -0,0 +1,74 @@
+#!/usr/bin/perl -w
+
+use strict;
+
+use DBI;
+use DBD::Pg;
+
+my $dsn = "dbname=p1";
+my $dbh = DBI->connect('dbi:Pg:dbname=p1', undef, undef, { AutoCommit => 1 });
+
+my $buf = 'abcdefghijklmnopqrstuvwxyz' x 400;
+
+my $id = write_blob($dbh, undef, $buf);
+
+my $dat = read_blob($dbh, $id);
+
+print "Done\n";
+
+sub write_blob {
+ my ($dbh, $lobj_id, $data) = @_;
+
+ # begin transaction
+ $dbh->{AutoCommit} = 0;
+
+ # Create a new lo if we are not passed an lo object ID.
+ unless ($lobj_id) {
+ # Create the object.
+ $lobj_id = $dbh->func($dbh->{'pg_INV_WRITE'}, 'lo_creat');
+ }
+
+ # Open it to get a file descriptor.
+ my $lobj_fd = $dbh->func($lobj_id, $dbh->{'pg_INV_WRITE'}, 'lo_open');
+
+ $dbh->func($lobj_fd, 0, 0, 'lo_lseek');
+
+ # Write some data to it.
+ my $len = $dbh->func($lobj_fd, $data, length($data), 'lo_write');
+
+ die "Errors writing lo\n" if $len != length($data);
+
+ # Close 'er up.
+ $dbh->func($lobj_fd, 'lo_close') or die "Problems closing lo object\n";
+
+ # end transaction
+ $dbh->{AutoCommit} = 1;
+
+ return $lobj_id;
+}
+
+sub read_blob {
+ my ($dbh, $lobj_id) = @_;
+ my $data = '';
+ my $read_len = 256;
+ my $chunk = '';
+
+ # begin transaction
+ $dbh->{AutoCommit} = 0;
+
+ my $lobj_fd = $dbh->func($lobj_id, $dbh->{'pg_INV_READ'}, 'lo_open');
+
+ $dbh->func($lobj_fd, 0, 0, 'lo_lseek');
+
+ # Pull out all the data.
+ while ($dbh->func($lobj_fd, $chunk, $read_len, 'lo_read')) {
+ $data .= $chunk;
+ }
+
+ $dbh->func($lobj_fd, 'lo_close') or die "Problems closing lo object\n";
+
+ # end transaction
+ $dbh->{AutoCommit} = 1;
+
+ return $data;
+}