func (mi *Indexer) EnumerateBlobs(dest chan<- blobref.SizedBlobRef, after string, limit uint, waitSeconds int) (err os.Error) {
// MySQL connection stuff.
var client *mysql.Client
client, err = mi.getConnection()
if err != nil {
return
}
defer mi.releaseConnection(client)
var stmt *mysql.Statement
stmt, err = client.Prepare("SELECT blobref, size FROM blobs WHERE blobref > ? ORDER BY blobref LIMIT ?")
if err != nil {
return
}
err = stmt.BindParams(after, limit)
if err != nil {
return
}
err = stmt.Execute()
if err != nil {
return
}
var row blobRow
stmt.BindResult(&row.blobref, &row.size)
for {
var done bool
done, err = stmt.Fetch()
if err != nil {
return
}
if done {
break
}
br := blobref.Parse(row.blobref)
if br == nil {
continue
}
dest <- blobref.SizedBlobRef{
BlobRef: br,
Size: row.size,
}
}
close(dest)
return
}
