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b4de902596
After reading and chunking all data in a file, the FutureFile still has to wait until the FutureBlobs are completed. This was done synchronously which results in blocking the file saver and prevents the next file from being read. By replacing the FutureBlob with a callback, it becomes possible to complete the FutureFile asynchronously.
99 lines
2.1 KiB
Go
99 lines
2.1 KiB
Go
package archiver
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import (
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"context"
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"runtime"
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"testing"
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"github.com/restic/chunker"
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"github.com/restic/restic/internal/fs"
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"github.com/restic/restic/internal/restic"
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"github.com/restic/restic/internal/test"
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"golang.org/x/sync/errgroup"
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)
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func createTestFiles(t testing.TB, num int) (files []string, cleanup func()) {
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tempdir, cleanup := test.TempDir(t)
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for i := 0; i < 15; i++ {
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filename := fmt.Sprintf("testfile-%d", i)
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err := ioutil.WriteFile(filepath.Join(tempdir, filename), []byte(filename), 0600)
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if err != nil {
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t.Fatal(err)
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}
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files = append(files, filepath.Join(tempdir, filename))
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}
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return files, cleanup
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}
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func startFileSaver(ctx context.Context, t testing.TB) (*FileSaver, context.Context, *errgroup.Group) {
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wg, ctx := errgroup.WithContext(ctx)
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saveBlob := func(ctx context.Context, tpe restic.BlobType, buf *Buffer, cb func(SaveBlobResponse)) {
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cb(SaveBlobResponse{})
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}
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workers := uint(runtime.NumCPU())
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pol, err := chunker.RandomPolynomial()
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if err != nil {
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t.Fatal(err)
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}
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s := NewFileSaver(ctx, wg, saveBlob, pol, workers, workers)
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s.NodeFromFileInfo = func(snPath, filename string, fi os.FileInfo) (*restic.Node, error) {
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return restic.NodeFromFileInfo(filename, fi)
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}
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return s, ctx, wg
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}
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func TestFileSaver(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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files, cleanup := createTestFiles(t, 15)
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defer cleanup()
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startFn := func() {}
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completeFn := func(*restic.Node, ItemStats) {}
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testFs := fs.Local{}
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s, ctx, wg := startFileSaver(ctx, t)
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var results []FutureNode
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for _, filename := range files {
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f, err := testFs.Open(filename)
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if err != nil {
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t.Fatal(err)
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}
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fi, err := f.Stat()
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if err != nil {
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t.Fatal(err)
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}
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ff := s.Save(ctx, filename, filename, f, fi, startFn, completeFn)
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results = append(results, ff)
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}
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for _, file := range results {
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fnr := file.take(ctx)
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if fnr.err != nil {
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t.Errorf("unable to save file: %v", fnr.err)
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}
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}
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s.TriggerShutdown()
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err := wg.Wait()
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if err != nil {
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t.Fatal(err)
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}
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}
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