blob: 5d11877d99bbb39d94694a09cb1b2fd8bea009e6 (
plain) (
blame)
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
|
/*******************************************************************************
* Copyright (c) 2007, 2010 Wind River Systems, Inc. and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Eclipse Distribution License v1.0 which accompany this distribution.
* The Eclipse Public License is available at
* http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Wind River Systems - initial API and implementation
* Michael Sills-Lavoie(École Polytechnique de Montréal) - ZeroCopy support
*******************************************************************************/
/*
* Transport agnostic input buf interface
*/
#ifndef D_input_buf
#define D_input_buf
#include <config.h>
#include <framework/streams.h>
#define INPUT_BUF_SIZE 0x1000
typedef struct InputBuf InputBuf;
struct InputBuf {
unsigned char buf[INPUT_BUF_SIZE];
unsigned char * inp;
unsigned char * out;
int full;
int inp_esc;
int out_esc;
int eof;
int long_msg; /* Message is longer then buffer, start handling before EOM */
int message_count; /* Number of messages waiting to be dispatched */
int handling_msg; /* Channel in the process of handling a message */
#if ENABLE_ZeroCopy
int out_size_mode; /* Checking the binary data size */
int out_data_size; /* Size of the bin data to get */
int inp_size_mode; /* (Read done) Checking the binary data size */
int inp_data_size; /* (Read done) Size of the bin data to get */
#endif
void (*post_read)(InputBuf *, unsigned char *, int);
void (*wait_read)(InputBuf *);
void (*trigger_message)(InputBuf *);
};
enum {
HandleMsgIdle,
HandleMsgTriggered,
HandleMsgActive
};
extern void ibuf_init(InputBuf * ibuf, InputStream * inp);
extern void ibuf_trigger_read(InputBuf * ibuf);
extern int ibuf_get_more(InputBuf * ibuf, InputStream * inp, int peeking);
extern void ibuf_flush(InputBuf * ibuf, InputStream * inp);
extern void ibuf_read_done(InputBuf * ibuf, int len);
extern int ibuf_start_message(InputBuf * ibuf);
#endif /* D_input_buf */
|
