本文整理汇总了Golang中github.com/janelia-flyem/dvid/dvid.RLEs.Add方法的典型用法代码示例。如果您正苦于以下问题：Golang RLEs.Add方法的具体用法？Golang RLEs.Add怎么用？Golang RLEs.Add使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类github.com/janelia-flyem/dvid/dvid.RLEs的用法示例。
在下文中一共展示了RLEs.Add方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: PutSparseVol
// PutSparseVol stores an encoded sparse volume that stays within a given forward label.
// Note that this encoded sparse volume is added to any existing sparse volume for
// a body rather than replace it. To carve out a part of an existing sparse volume,
// use the SplitLabels().
//
// This function handles modification/deletion of all denormalized data touched by this
// sparse label volume.
//
// EVENTS
//
//
func (d *Data) PutSparseVol(v dvid.VersionID, label uint64, r io.Reader) error {
store, err := storage.SmallDataStore()
if err != nil {
return fmt.Errorf("Data type labelvol had error initializing store: %v\n", err)
}
batcher, ok := store.(storage.KeyValueBatcher)
if !ok {
return fmt.Errorf("Data type labelvol requires batch-enabled store, which %q is not\n", store)
}
// Mark the label as dirty until done.
iv := dvid.InstanceVersion{d.DataName(), v}
dirtyLabels.Incr(iv, label)
defer dirtyLabels.Decr(iv, label)
// TODO -- Signal that we are starting a label modification.
// Read the sparse volume from reader.
header := make([]byte, 8)
if _, err = io.ReadFull(r, header); err != nil {
return err
}
if header[0] != dvid.EncodingBinary {
return fmt.Errorf("sparse vol for split has unknown encoding format: %v", header[0])
}
var numSpans uint32
if err = binary.Read(r, binary.LittleEndian, &numSpans); err != nil {
return err
}
var mods dvid.RLEs
if err = mods.UnmarshalBinaryReader(r, numSpans); err != nil {
return err
}
// Partition the mods spans into blocks.
var modmap dvid.BlockRLEs
modmap, err = mods.Partition(d.BlockSize)
if err != nil {
return err
}
// Publish sparsevol mod event
evt := datastore.SyncEvent{d.DataName(), labels.SparsevolModEvent}
msg := datastore.SyncMessage{v, labels.DeltaSparsevol{label, modmap}}
if err := datastore.NotifySubscribers(evt, msg); err != nil {
return err
}
// Get a sorted list of blocks that cover mods.
modblks := modmap.SortedKeys()
ctx := datastore.NewVersionedCtx(d, v)
batch := batcher.NewBatch(ctx)
var voxelsAdded int64
for _, modblk := range modblks {
// Get original block
tk := NewTKey(label, modblk)
val, err := store.Get(ctx, tk)
if err != nil {
return err
}
// If there's no original block, just write the mod block.
if val == nil || len(val) == 0 {
numVoxels, _ := modmap[modblk].Stats()
voxelsAdded += int64(numVoxels)
rleBytes, err := modmap[modblk].MarshalBinary()
if err != nil {
return fmt.Errorf("can't serialize modified RLEs for %d: %v\n", label, err)
}
batch.Put(tk, rleBytes)
continue
}
// if there's an original, integrate and write merged RLE.
var rles dvid.RLEs
if err := rles.UnmarshalBinary(val); err != nil {
return fmt.Errorf("Unable to unmarshal RLE for original labels in block %s", modblk.Print())
}
voxelsAdded += rles.Add(modmap[modblk])
rleBytes, err := rles.MarshalBinary()
if err != nil {
return fmt.Errorf("can't serialize modified RLEs of %d: %v\n", label, err)
}
batch.Put(tk, rleBytes)
}
//.........这里部分代码省略.........