Apache Arrow (C++)
A columnar in-memory analytics layer designed to accelerate big data.
util.h
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17 
18 #ifndef ARROW_IPC_UTIL_H
19 #define ARROW_IPC_UTIL_H
20 
21 #include <cstdint>
22 
23 #include "arrow/array.h"
24 #include "arrow/io/interfaces.h"
25 #include "arrow/status.h"
26 
27 namespace arrow {
28 namespace ipc {
29 
30 // Buffers are padded to 64-byte boundaries (for SIMD)
31 static constexpr int kArrowAlignment = 64;
32 
33 // Align on 8-byte boundaries in IPC
34 static constexpr int kArrowIpcAlignment = 8;
35 
36 static constexpr uint8_t kPaddingBytes[kArrowAlignment] = {0};
37 
38 static inline int64_t PaddedLength(int64_t nbytes, int64_t alignment = kArrowAlignment) {
39  return ((nbytes + alignment - 1) / alignment) * alignment;
40 }
41 
42 } // namespace ipc
43 } // namespace arrow
44 
45 #endif // ARROW_IPC_UTIL_H
Top-level namespace for Apache Arrow C++ API.
Definition: allocator.h:29