source: roaraudio/libroar/libroar.c @ 4708:c9d40761088a

Last change on this file since 4708:c9d40761088a was 4708:c9d40761088a, checked in by phi, 13 years ago

updated copyright statements

File size: 2.5 KB
Line 
1//libroar.c:
2
3/*
4 *      Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2011
5 *
6 *  This file is part of libroar a part of RoarAudio,
7 *  a cross-platform sound system for both, home and professional use.
8 *  See README for details.
9 *
10 *  This file is free software; you can redistribute it and/or modify
11 *  it under the terms of the GNU General Public License version 3
12 *  as published by the Free Software Foundation.
13 *
14 *  libroar is distributed in the hope that it will be useful,
15 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
16 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 *  GNU General Public License for more details.
18 *
19 *  You should have received a copy of the GNU General Public License
20 *  along with this software; see the file COPYING.  If not, write to
21 *  the Free Software Foundation, 51 Franklin Street, Fifth Floor,
22 *  Boston, MA 02110-1301, USA.
23 *
24 *  NOTE for everyone want's to change something and send patches:
25 *  read README and HACKING! There a addition information on
26 *  the license of this document you need to read before you send
27 *  any patches.
28 *
29 *  NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc
30 *  or libpulse*:
31 *  The libs libroaresd, libroararts and libroarpulse link this lib
32 *  and are therefore GPL. Because of this it may be illigal to use
33 *  them with any software that uses libesd, libartsc or libpulse*.
34 */
35
36#include "libroar.h"
37
38#ifndef roar_mm_mlock
39int roar_mm_mlock(const void *addr, size_t len) {
40#if defined(ROAR_TARGET_WIN32)
41 return GlobalLock(addr) == addr ? 0 : -1;
42#elif defined(ROAR_TARGET_MICROCONTROLLER)
43 return 0;
44#elif defined(_SC_PAGESIZE)
45 long sz = sysconf(_SC_PAGESIZE);
46 unsigned long int pos = (unsigned long int) addr;
47
48 len += sz - (len % sz);
49
50 pos -= pos % sz;
51
52 return mlock((void*)pos, len);
53#else
54 return -1;
55#endif
56}
57#endif
58
59#ifndef roar_mm_munlock
60int roar_mm_munlock(const void *addr, size_t len) {
61#if defined(ROAR_TARGET_WIN32)
62 // TODO: find out what do do here. GlobalUnLock()? does such a function exist?
63// return GlobalLock(addr) == addr ? 0 : -1;
64 return -1;
65#elif defined(ROAR_TARGET_MICROCONTROLLER)
66 return 0;
67#elif defined(_SC_PAGESIZE)
68 long sz = sysconf(_SC_PAGESIZE);
69 unsigned long int pos = (unsigned long int) addr;
70
71 len += sz - (len % sz);
72
73 pos -= pos % sz;
74
75 return munlock((void*)pos, len);
76#else
77 return -1;
78#endif
79}
80#endif
81
82// for compatibility with old versions:
83int _ROAR_MLOCK(const void *addr, size_t len) {
84 roar_debug_warn_obsolete("_ROAR_MLOCK", "roar_mm_mlock", NULL);
85 return roar_mm_mlock(addr, len);
86}
87
88//ll
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