func newBatchEx(w *Writer, o store.KVBatchOptions) *BatchEx {
s := o.NumSets + o.NumMerges
ss := s + o.NumSets + o.NumMerges
ssd := ss + o.NumDeletes
cbufs := make([]unsafe.Pointer, 3)
C.blevex_forestdb_alloc_direct_batch(C.size_t(o.TotalBytes),
C.size_t(ssd), (*unsafe.Pointer)(&cbufs[0]))
buf := unsafeToByteSlice(cbufs[0], o.TotalBytes)
arr_ptr_char := unsafeToCPtrCharSlice(cbufs[1], ssd)
arr_size_t := unsafeToCSizeTSlice(cbufs[2], ssd)
return &BatchEx{
w: w,
merge: store.NewEmulatedMerge(w.store.mo),
cbufs: cbufs,
buf: buf,
set_keys: arr_ptr_char[0:s],
set_keys_sizes: arr_size_t[0:s],
set_vals: arr_ptr_char[s:ss],
set_vals_sizes: arr_size_t[s:ss],
delete_keys: arr_ptr_char[ss:ssd],
delete_keys_sizes: arr_size_t[ss:ssd],
}
}
func (w *Writer) NewBatch() store.KVBatch {
rv := Batch{
w: w,
merge: store.NewEmulatedMerge(w.store.mo),
batch: levigo.NewWriteBatch(),
}
return &rv
}
func (w *Writer) NewBatch() store.KVBatch {
rv := Batch{
w: w,
merge: store.NewEmulatedMerge(w.store.mo),
batch: new(leveldb.Batch),
}
return &rv
}
func (w *Writer) NewBatch() store.KVBatch {
rv := Batch{
w: w,
merge: store.NewEmulatedMerge(w.store.mo),
batch: forestdb.NewKVBatch(),
}
return &rv
}
func (w *Writer) NewBatch() store.KVBatch {
b, err := w.s.ms.NewBatch(0, 0)
if err != nil {
return nil
}
return &Batch{
store: w.s,
merge: store.NewEmulatedMerge(w.s.mo),
batch: b,
}
}
func (b *Batch) Reset() {
err := b.Close()
if err != nil {
b.store.Logf("bleve moss batch.Close err: %v", err)
return
}
batch, err := b.store.ms.NewBatch(0, 0)
if err == nil {
b.batch = batch
b.merge = store.NewEmulatedMerge(b.store.mo)
b.buf = nil
b.bufUsed = 0
}
}
func (w *Writer) NewBatchEx(options store.KVBatchOptions) (
[]byte, store.KVBatch, error) {
numOps := options.NumSets + options.NumDeletes + options.NumMerges
b, err := w.s.ms.NewBatch(numOps, options.TotalBytes)
if err != nil {
return nil, nil, err
}
buf, err := b.Alloc(options.TotalBytes)
if err != nil {
return nil, nil, err
}
return buf, &Batch{
store: w.s,
merge: store.NewEmulatedMerge(w.s.mo),
batch: b,
buf: buf,
bufUsed: 0,
}, nil
}
func (b *Batch) Reset() {
b.batch.Reset()
b.merge = store.NewEmulatedMerge(b.store.mo)
}
func (b *Batch) Reset() {
b.batch.Reset()
b.merge = store.NewEmulatedMerge(b.w.store.mo)
b.skipBatchErr = nil
}
func (b *BatchEx) Reset() {
b.num_sets = 0
b.num_deletes = 0
b.merge = store.NewEmulatedMerge(b.w.store.mo)
}