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 | /* ckport options: |
---|
37 | * ckport: ignore-symbol: sleep of target win32 -- checked by configure |
---|
38 | */ |
---|
39 | |
---|
40 | #include "libroar.h" |
---|
41 | |
---|
42 | #ifndef roar_mm_mlock |
---|
43 | int roar_mm_mlock(const void *addr, size_t len) { |
---|
44 | #if defined(ROAR_TARGET_WIN32) |
---|
45 | /* GlobalLock() generates errors. Maybe we do not use correctly. |
---|
46 | * We just ignore that at the moment and throw NOSYS. |
---|
47 | * |
---|
48 | * return GlobalLock(addr) == addr ? 0 : -1; |
---|
49 | */ |
---|
50 | roar_err_set(ROAR_ERROR_NOSYS); |
---|
51 | return -1; |
---|
52 | #elif defined(ROAR_TARGET_MICROCONTROLLER) |
---|
53 | return 0; |
---|
54 | #elif defined(_SC_PAGESIZE) |
---|
55 | long sz = sysconf(_SC_PAGESIZE); |
---|
56 | unsigned long int pos = (unsigned long int) addr; |
---|
57 | |
---|
58 | len += sz - (len % sz); |
---|
59 | |
---|
60 | pos -= pos % sz; |
---|
61 | |
---|
62 | return mlock((void*)pos, len); |
---|
63 | #else |
---|
64 | roar_err_set(ROAR_ERROR_NOSYS); |
---|
65 | return -1; |
---|
66 | #endif |
---|
67 | } |
---|
68 | #endif |
---|
69 | |
---|
70 | #ifndef roar_mm_munlock |
---|
71 | int roar_mm_munlock(const void *addr, size_t len) { |
---|
72 | #if defined(ROAR_TARGET_WIN32) |
---|
73 | // TODO: find out what do do here. GlobalUnLock()? does such a function exist? |
---|
74 | // return GlobalLock(addr) == addr ? 0 : -1; |
---|
75 | roar_err_set(ROAR_ERROR_NOSYS); |
---|
76 | return -1; |
---|
77 | #elif defined(ROAR_TARGET_MICROCONTROLLER) |
---|
78 | return 0; |
---|
79 | #elif defined(_SC_PAGESIZE) |
---|
80 | long sz = sysconf(_SC_PAGESIZE); |
---|
81 | unsigned long int pos = (unsigned long int) addr; |
---|
82 | |
---|
83 | len += sz - (len % sz); |
---|
84 | |
---|
85 | pos -= pos % sz; |
---|
86 | |
---|
87 | return munlock((void*)pos, len); |
---|
88 | #else |
---|
89 | roar_err_set(ROAR_ERROR_NOSYS); |
---|
90 | return -1; |
---|
91 | #endif |
---|
92 | } |
---|
93 | #endif |
---|
94 | |
---|
95 | // for compatibility with old versions: |
---|
96 | int _ROAR_MLOCK(const void *addr, size_t len) { |
---|
97 | roar_debug_warn_obsolete("_ROAR_MLOCK", "roar_mm_mlock", NULL); |
---|
98 | return roar_mm_mlock(addr, len); |
---|
99 | } |
---|
100 | |
---|
101 | int roar_usleep(uint_least32_t t) { |
---|
102 | #ifdef ROAR_TARGET_WIN32 |
---|
103 | Sleep(t/(uint_least32_t)1000); |
---|
104 | return 0; |
---|
105 | #elif defined(ROAR_HAVE_NANOSLEEP) |
---|
106 | struct timespec tv; |
---|
107 | struct timespec left; |
---|
108 | |
---|
109 | if ( t > (uint_least32_t)1000000 ) { |
---|
110 | tv.tv_sec = t/(uint_least32_t)1000000; |
---|
111 | t -= tv.tv_sec*(uint_least32_t)1000000; |
---|
112 | } else { |
---|
113 | tv.tv_sec = 0; |
---|
114 | } |
---|
115 | |
---|
116 | tv.tv_nsec = t*(uint_least32_t)1000; |
---|
117 | |
---|
118 | while (nanosleep(&tv, &left) == -1) |
---|
119 | memcpy(&tv, &left, sizeof(tv)); |
---|
120 | return 0; |
---|
121 | #elif defined(ROAR_HAVE_USLEEP) |
---|
122 | usleep(t); |
---|
123 | return 0; |
---|
124 | #else |
---|
125 | ROAR_ERR("roar_usleep(t=%llu): can not sleep: not implemented", (long long unsigned int)t); |
---|
126 | roar_strap(ROAR_TRAP_GROUP_LIBROAR, "usleep.not-implemented"); |
---|
127 | roar_err_set(ROAR_ERROR_NOSYS); |
---|
128 | return -1; |
---|
129 | #endif |
---|
130 | } |
---|
131 | |
---|
132 | int roar_sleep(int t) { |
---|
133 | if ( t < 0 ) { |
---|
134 | roar_err_set(ROAR_ERROR_CAUSALITY); |
---|
135 | return -1; |
---|
136 | } |
---|
137 | |
---|
138 | #ifdef ROAR_TARGET_WIN32 |
---|
139 | Sleep(1000L*(long)t); |
---|
140 | #else |
---|
141 | while (t) |
---|
142 | t = sleep(t); |
---|
143 | #endif |
---|
144 | |
---|
145 | return 0; |
---|
146 | } |
---|
147 | |
---|
148 | //ll |
---|