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go code can read and write chunk manifest

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This commit is contained in:
Chris Lu
2020-07-19 17:59:43 -07:00
parent f90d2c93c9
commit 97d97f3528
21 changed files with 511 additions and 112 deletions
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13
weed/filesys/filehandle.go
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@@ -88,8 +88,12 @@ func (fh *FileHandle) readFromChunks(buff []byte, offset int64) (int64, error) {
return 0, nil
}
var chunkResolveErr error
if fh.f.entryViewCache == nil {
fh.f.entryViewCache = filer2.NonOverlappingVisibleIntervals(fh.f.entry.Chunks)
fh.f.entryViewCache, chunkResolveErr = filer2.NonOverlappingVisibleIntervals(filer2.LookupFn(fh.f.wfs), fh.f.entry.Chunks)
if chunkResolveErr != nil {
return 0, fmt.Errorf("fail to resolve chunk manifest: %v", chunkResolveErr)
}
fh.f.reader = nil
}
@@ -206,7 +210,12 @@ func (fh *FileHandle) Flush(ctx context.Context, req *fuse.FlushRequest) error {
glog.V(3).Infof("%s chunks %d: %v [%d,%d)", fh.f.fullpath(), i, chunk.FileId, chunk.Offset, chunk.Offset+int64(chunk.Size))
}
chunks, garbages := filer2.CompactFileChunks(fh.f.entry.Chunks)
chunks, garbages := filer2.CompactFileChunks(filer2.LookupFn(fh.f.wfs), fh.f.entry.Chunks)
chunks, manifestErr := filer2.MaybeManifestize(fh.f.wfs.saveDataAsChunk(fh.f.dir.FullPath()), chunks)
if manifestErr != nil {
// not good, but should be ok
glog.V(0).Infof("MaybeManifestize: %v", manifestErr)
}
fh.f.entry.Chunks = chunks
// fh.f.entryViewCache = nil