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authormonster <monster@ydb.tech>2022-07-07 14:41:37 +0300
committermonster <monster@ydb.tech>2022-07-07 14:41:37 +0300
commit06e5c21a835c0e923506c4ff27929f34e00761c2 (patch)
tree75efcbc6854ef9bd476eb8bf00cc5c900da436a2 /library/cpp/netliba/v6/ib_memstream.h
parent03f024c4412e3aa613bb543cf1660176320ba8f4 (diff)
downloadydb-06e5c21a835c0e923506c4ff27929f34e00761c2.tar.gz
fix ya.make
Diffstat (limited to 'library/cpp/netliba/v6/ib_memstream.h')
-rw-r--r--library/cpp/netliba/v6/ib_memstream.h95
1 files changed, 95 insertions, 0 deletions
diff --git a/library/cpp/netliba/v6/ib_memstream.h b/library/cpp/netliba/v6/ib_memstream.h
new file mode 100644
index 0000000000..67eb2386de
--- /dev/null
+++ b/library/cpp/netliba/v6/ib_memstream.h
@@ -0,0 +1,95 @@
+#pragma once
+
+#include "ib_mem.h"
+#include <library/cpp/binsaver/bin_saver.h>
+#include <library/cpp/binsaver/buffered_io.h>
+
+namespace NNetliba {
+ class TIBMemStream: public IBinaryStream {
+ struct TBlock {
+ TIntrusivePtr<TIBMemBlock> Mem;
+ i64 StartOffset;
+ int BufSize, DataSize;
+
+ TBlock()
+ : StartOffset(0)
+ , BufSize(0)
+ , DataSize(0)
+ {
+ }
+ TBlock(const TBlock& x) {
+ Copy(x);
+ }
+ void operator=(const TBlock& x) {
+ Copy(x);
+ }
+ void Copy(const TBlock& x) {
+ if (x.BufSize > 0) {
+ Mem = GetIBMemPool()->Alloc(x.BufSize);
+ memcpy(Mem->GetData(), x.Mem->GetData(), x.DataSize);
+ StartOffset = x.StartOffset;
+ BufSize = x.BufSize;
+ DataSize = x.DataSize;
+ } else {
+ Mem = nullptr;
+ StartOffset = 0;
+ BufSize = 0;
+ DataSize = 0;
+ }
+ }
+ };
+
+ TIntrusivePtr<TIBMemPool> MemPool;
+ TVector<TBlock> Blocks;
+ int CurBlock;
+ int CurBlockOffset;
+
+ public:
+ struct TBlockDescr {
+ ui64 Addr;
+ int BufSize, DataSize;
+ ui32 RemoteKey, LocalKey;
+ };
+ struct TBlockSizes {
+ int BufSize, DataSize;
+ };
+
+ public:
+ TIBMemStream()
+ : MemPool(GetIBMemPool())
+ , CurBlock(0)
+ , CurBlockOffset(0)
+ {
+ }
+ ~TIBMemStream() override {
+ } // keep gcc happy
+
+ bool IsValid() const override {
+ return true;
+ }
+ bool IsFailed() const override {
+ return false;
+ }
+ void Flush() {
+ }
+
+ i64 GetLength();
+ i64 Seek(i64 pos);
+
+ void GetBlocks(TVector<TBlockDescr>* res) const;
+ void CreateBlocks(const TVector<TBlockSizes>& arr);
+
+ void Clear();
+
+ private:
+ int WriteImpl(const void* userBuffer, int size) override;
+ int ReadImpl(void* userBuffer, int size) override;
+ };
+
+ template <class T>
+ inline void Serialize(bool bRead, TIBMemStream& ms, T& c) {
+ IBinSaver bs(ms, bRead);
+ bs.Add(1, &c);
+ }
+
+}