1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
/* Copyright 2015 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* Stream adaptor implementation.
*/
#include "producer.h"
#include "consumer.h"
#include "stream_adaptor.h"
#include "util.h"
static size_t in_stream_from_queue_read(struct in_stream const *stream,
uint8_t *buffer,
size_t count)
{
struct in_stream_from_queue const *adaptor =
DOWNCAST(stream, struct in_stream_from_queue, in);
return queue_remove_memcpy(adaptor->consumer.queue,
buffer,
count,
memcpy);
}
static void in_stream_from_queue_written(struct consumer const *consumer,
size_t count)
{
struct in_stream_from_queue const *adaptor =
DOWNCAST(consumer, struct in_stream_from_queue, consumer);
in_stream_ready(&adaptor->in);
}
struct in_stream_ops const in_stream_from_queue_in_stream_ops = {
.read = in_stream_from_queue_read,
};
struct consumer_ops const in_stream_from_queue_consumer_ops = {
.written = in_stream_from_queue_written,
};
static size_t out_stream_from_queue_write(struct out_stream const *stream,
uint8_t const *buffer,
size_t count)
{
struct out_stream_from_queue const *adaptor =
DOWNCAST(stream, struct out_stream_from_queue, out);
return queue_add_memcpy(adaptor->producer.queue,
buffer,
count,
memcpy);
}
static void out_stream_from_queue_read(struct producer const *producer,
size_t count)
{
struct out_stream_from_queue const *adaptor =
DOWNCAST(producer, struct out_stream_from_queue, producer);
out_stream_ready(&adaptor->out);
}
struct out_stream_ops const out_stream_from_queue_out_stream_ops = {
.write = out_stream_from_queue_write,
};
struct producer_ops const out_stream_from_queue_producer_ops = {
.read = out_stream_from_queue_read,
};
|
