mirror of https://github.com/perkeep/perkeep.git
78 lines
1.6 KiB
Go
78 lines
1.6 KiB
Go
/*
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Copyright 2011 Google Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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nYou may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package mysqlindexer
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import (
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"os"
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"camli/blobref"
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mysql "camli/third_party/github.com/Philio/GoMySQL"
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)
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type blobRow struct {
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blobref string
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size int64
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}
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func (mi *Indexer) EnumerateBlobs(dest chan<- blobref.SizedBlobRef, after string, limit uint, waitSeconds int) (err os.Error) {
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// MySQL connection stuff.
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var client *mysql.Client
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client, err = mi.getConnection()
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if err != nil {
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return
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}
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defer mi.releaseConnection(client)
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var stmt *mysql.Statement
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stmt, err = client.Prepare("SELECT blobref, size FROM blobs WHERE blobref > ? ORDER BY blobref LIMIT ?")
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if err != nil {
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return
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}
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err = stmt.BindParams(after, limit)
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if err != nil {
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return
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}
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err = stmt.Execute()
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if err != nil {
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return
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}
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var row blobRow
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stmt.BindResult(&row.blobref, &row.size)
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for {
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var done bool
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done, err = stmt.Fetch()
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if err != nil {
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return
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}
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if done {
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break
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}
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br := blobref.Parse(row.blobref)
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if br == nil {
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continue
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}
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dest <- blobref.SizedBlobRef{
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BlobRef: br,
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Size: row.size,
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}
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}
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close(dest)
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return
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}
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