1/**
2 * Copyright (c) Glow Contributors. See CONTRIBUTORS file.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16#ifndef GLOW_BACKENDS_BLOCKSTREAMBASE_H
17#define GLOW_BACKENDS_BLOCKSTREAMBASE_H
18
19#include <vector>
20namespace glow {
21
22// This is the base class of all BlockStream implemented in backends.
23// BlockStream are used for read & write compiled backend function.
24class BlockStreamBase {
25public:
26 BlockStreamBase() {}
27 virtual ~BlockStreamBase() {}
28
29 // Read /p size bytes from stream to /p buffer.
30 virtual size_t read(char *buffer, size_t size) = 0;
31
32 // Write /p size bytes from /p buffer to stream.
33 virtual size_t write(const char *buffer, size_t size) = 0;
34
35 // Get size of wriiten data.
36 virtual size_t getSize() = 0;
37
38 // Release memory of block stream
39 virtual void releaseMemory() = 0;
40};
41
42} // end namespace glow
43
44#endif // GLOW_BACKENDS_BLOCKSTREAMBASE_H
45