mirror of
https://github.com/octoleo/restic.git
synced 2024-11-23 05:12:10 +00:00
4a10ebed15
FutureBlob now uses a Take() method as a more memory-efficient way to retrieve the futures result. In addition, futures are now collected while saving the file. As only a limited number of blobs can be queued for uploading, for a large file nearly all FutureBlobs already have their result ready, such that the FutureBlob object just consumes memory.
98 lines
2.0 KiB
Go
98 lines
2.0 KiB
Go
package archiver
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"io/ioutil"
|
|
"path/filepath"
|
|
"runtime"
|
|
"testing"
|
|
|
|
"github.com/restic/chunker"
|
|
"github.com/restic/restic/internal/fs"
|
|
"github.com/restic/restic/internal/restic"
|
|
"github.com/restic/restic/internal/test"
|
|
"golang.org/x/sync/errgroup"
|
|
)
|
|
|
|
func createTestFiles(t testing.TB, num int) (files []string, cleanup func()) {
|
|
tempdir, cleanup := test.TempDir(t)
|
|
|
|
for i := 0; i < 15; i++ {
|
|
filename := fmt.Sprintf("testfile-%d", i)
|
|
err := ioutil.WriteFile(filepath.Join(tempdir, filename), []byte(filename), 0600)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
files = append(files, filepath.Join(tempdir, filename))
|
|
}
|
|
|
|
return files, cleanup
|
|
}
|
|
|
|
func startFileSaver(ctx context.Context, t testing.TB) (*FileSaver, context.Context, *errgroup.Group) {
|
|
wg, ctx := errgroup.WithContext(ctx)
|
|
|
|
saveBlob := func(ctx context.Context, tpe restic.BlobType, buf *Buffer) FutureBlob {
|
|
ch := make(chan SaveBlobResponse)
|
|
close(ch)
|
|
return FutureBlob{ch: ch}
|
|
}
|
|
|
|
workers := uint(runtime.NumCPU())
|
|
pol, err := chunker.RandomPolynomial()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
s := NewFileSaver(ctx, wg, saveBlob, pol, workers, workers)
|
|
s.NodeFromFileInfo = restic.NodeFromFileInfo
|
|
|
|
return s, ctx, wg
|
|
}
|
|
|
|
func TestFileSaver(t *testing.T) {
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
|
|
files, cleanup := createTestFiles(t, 15)
|
|
defer cleanup()
|
|
|
|
startFn := func() {}
|
|
completeFn := func(*restic.Node, ItemStats) {}
|
|
|
|
testFs := fs.Local{}
|
|
s, ctx, wg := startFileSaver(ctx, t)
|
|
|
|
var results []FutureNode
|
|
|
|
for _, filename := range files {
|
|
f, err := testFs.Open(filename)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
fi, err := f.Stat()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
ff := s.Save(ctx, filename, filename, f, fi, startFn, completeFn)
|
|
results = append(results, ff)
|
|
}
|
|
|
|
for _, file := range results {
|
|
fnr := file.take(ctx)
|
|
if fnr.err != nil {
|
|
t.Errorf("unable to save file: %v", fnr.err)
|
|
}
|
|
}
|
|
|
|
s.TriggerShutdown()
|
|
|
|
err := wg.Wait()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|