1 /*
2  * This file is part of the MicroPython project, http://micropython.org/
3  *
4  * The MIT License (MIT)
5  *
6  * Copyright (c) 2019-2020 Damien P. George
7  *
8  * Permission is hereby granted, free of charge, to any person obtaining a copy
9  * of this software and associated documentation files (the "Software"), to deal
10  * in the Software without restriction, including without limitation the rights
11  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12  * copies of the Software, and to permit persons to whom the Software is
13  * furnished to do so, subject to the following conditions:
14  *
15  * The above copyright notice and this permission notice shall be included in
16  * all copies or substantial portions of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24  * THE SOFTWARE.
25  */
26 #ifndef MICROPY_INCLUDED_STM32_MBOOT_GZSTREAM_H
27 #define MICROPY_INCLUDED_STM32_MBOOT_GZSTREAM_H
28 
29 #include <stddef.h>
30 #include <stdint.h>
31 
32 typedef int (*stream_open_t)(void *stream, const char *fname);
33 typedef void (*stream_close_t)(void *stream);
34 typedef int (*stream_read_t)(void *stream, uint8_t *buf, size_t len);
35 
36 typedef struct _stream_methods_t {
37     stream_open_t open;
38     stream_close_t close;
39     stream_read_t read;
40 } stream_methods_t;
41 
42 int gz_stream_init_from_raw_data(const uint8_t *data, size_t len);
43 int gz_stream_init_from_stream(void *stream_data, stream_read_t stream_read);
44 int gz_stream_read(size_t len, uint8_t *buf);
45 
46 #endif // MICROPY_INCLUDED_STM32_MBOOT_GZSTREAM_H
47