UbixOS V2 2.0

pipe.h
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1 /*-
2 * Copyright (c) 2002-2018 The UbixOS Project.
3 * All rights reserved.
4 *
5 * This was developed by Christopher W. Olsen for the UbixOS Project.
6 *
7 * Redistribution and use in source and binary forms, with or without modification, are permitted
8 * provided that the following conditions are met:
9 *
10 * 1) Redistributions of source code must retain the above copyright notice, this list of
11 * conditions, the following disclaimer and the list of authors.
12 * 2) Redistributions in binary form must reproduce the above copyright notice, this list of
13 * conditions, the following disclaimer and the list of authors in the documentation and/or
14 * other materials provided with the distribution.
15 * 3) Neither the name of the UbixOS Project nor the names of its contributors may be used to
16 * endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
20 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
24 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
26 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #ifndef _SYS_PIPE_H
30 #define _SYS_PIPE_H
31
32 #include <sys/thread.h>
33 #include <sys/sysproto_posix.h>
34
35 int pipe(struct thread *, struct pipe_args *);
36
37 struct pipeBuf {
38 struct pipeBuf *next;
39 char *buffer;
40 size_t nbytes;
41 off_t offset;
42
43 };
44
45 struct pipeInfo {
46 int rFD;
47 int rfdCNT;
48 int wFD;
49 int wfdCNT;
50 int bCNT;
51 struct pipeBuf *headPB;
52 struct pipeBuf *tailPB;
53 };
54
55 #endif /* END _SYS_PIPE_H */
pipeBuf::next
struct pipeBuf * next
Definition: pipe.h:38
sysproto_posix.h
thread
Definition: thread.h:40
pipeInfo::rfdCNT
int rfdCNT
Definition: pipe.h:47
pipeInfo::bCNT
int bCNT
Definition: pipe.h:50
pipeInfo::rFD
int rFD
Definition: pipe.h:46
pipeBuf::nbytes
size_t nbytes
Definition: pipe.h:40
pipeBuf::buffer
char * buffer
Definition: pipe.h:39
pipeInfo::wFD
int wFD
Definition: pipe.h:48
pipeInfo::tailPB
struct pipeBuf * tailPB
Definition: pipe.h:52
pipeBuf::offset
off_t offset
Definition: pipe.h:41
pipe
int pipe(struct thread *, struct pipe_args *)
Definition: pipe.c:39
pipeBuf
Definition: pipe.h:37
pipeInfo::headPB
struct pipeBuf * headPB
Definition: pipe.h:51
off_t
__int64_t off_t
Definition: types.h:119
pipeInfo
Definition: pipe.h:45
pipe_args
Definition: sysproto_posix.h:349
thread.h
pipeInfo::wfdCNT
int wfdCNT
Definition: pipe.h:49