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ac_stream.h
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1 /*
2  * Copyright (c) 2017, ARM Limited, All Rights Reserved
3  * SPDX-License-Identifier: Apache-2.0
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License"); you may
6  * not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
13  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 /**
18  * \file ac_stream.h
19  * \copyright Copyright (c) ARM Ltd 2015
20  * \author Donatien Garnier
21  */
22 
23 #ifndef ACORE_STREAM_H_
24 #define ACORE_STREAM_H_
25 
26 #ifdef __cplusplus
27 extern "C" {
28 #endif
29 
30 struct __ac_istream;
31 struct __ac_ostream;
32 
33 typedef struct __ac_istream ac_istream_t;
34 typedef struct __ac_ostream ac_ostream_t;
35 
36 #include "stddef.h"
37 #include "stdbool.h"
38 #include "stdint.h"
39 
40 #include "acore/ac_buffer.h"
41 
42 typedef void (*ac_istream_fn)(ac_buffer_t *pDataIn, bool *pClose, size_t maxLength, void *pUserParam);
43 typedef void (*ac_ostream_fn)(ac_buffer_t *pDataOut, bool closed, void *pUserParam);
44 
45 //Input stream -- pulled by consumer
46 struct __ac_istream {
47  ac_istream_fn fn;
48  void *pUserParam;
49 };
50 
51 //Output stream -- pushed by supplier
52 struct __ac_ostream {
53  ac_ostream_fn fn;
54  void *pUserParam;
55 };
56 
57 //Called by supplier
58 void ac_istream_init(ac_istream_t *pac_istream, ac_istream_fn fn, void *pUserParam);
59 //Called by consumer
60 void ac_istream_pull(ac_istream_t *pac_istream, ac_buffer_t *pDataIn, bool *pClose, size_t maxLength);
61 
62 //Called by consumer
63 void ac_ostream_init(ac_ostream_t *pac_ostream, ac_ostream_fn fn, void *pUserParam);
64 //Called by supplier
65 void ac_ostream_push(ac_ostream_t *pac_ostream, ac_buffer_t *pDataOut, bool closed);
66 
67 #ifdef __cplusplus
68 }
69 #endif
70 
71 #endif /* ACORE_STREAM_H_ */
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