source: roaraudio/libroar/libroar.c @ 5317:6b1045321fd6

Last change on this file since 5317:6b1045321fd6 was 5270:e25346c13638, checked in by phi, 12 years ago

fixed some gcc -Wextra warnings

File size: 6.7 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/* 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
43int 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
71int 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:
96int _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
101int 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
132int 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#elif defined(ROAR_HAVE_SLEEP)
141 while (t)
142  t = sleep(t);
143#else
144 while (t) {
145  if ( roar_usleep(500000) == -1 )
146   return -1;
147  if ( roar_usleep(500000) == -1 )
148   return -1;
149  t--;
150 }
151#endif
152
153 return 0;
154}
155
156int roar_reset(enum roar_reset what) {
157 char c;
158 int i;
159 enum roar_reset subsets = ROAR_RESET_NONE;
160
161 roar_err_set(ROAR_ERROR_NONE);
162
163 switch (what) {
164  case ROAR_RESET_NONE:
165    return 0;
166   break;
167  case ROAR_RESET_UNKNOWN:
168  case ROAR_RESET_EOL:
169    roar_err_set(ROAR_ERROR_INVAL);
170    return -1;
171   break;
172  case ROAR_RESET_ON_FORK:
173    subsets |= ROAR_RESET_MEMORY|ROAR_RESET_RANDOMPOOL;
174   break;
175  case ROAR_RESET_ON_EXIT:
176  case ROAR_RESET_ON_PRE_EXEC:
177    subsets |= ROAR_RESET_MEMORY|ROAR_RESET_CONFIG;
178   break;
179  default:
180    if ( what & 0x80 ) {
181     subsets |= what;
182    } else {
183     roar_err_set(ROAR_ERROR_INVAL);
184     return -1;
185    }
186   break;
187 }
188
189 // strip 0x80 so we can easly test on the other bit per subsystem.
190 what |= 0x80;
191 what -= 0x80;
192
193 if ( what & ROAR_RESET_MEMORY ) {
194  (void)roar_mm_reset();
195 }
196
197 if ( what & ROAR_RESET_CONFIG ) {
198  roar_libroar_reset_config();
199 }
200
201 if ( what & ROAR_RESET_RANDOMPOOL ) {
202  for (i = 0; i < 16; i++) {
203   roar_random_gen_nonce(&c, 1);
204   roar_random_uint16();
205   roar_random_uint32();
206  }
207 }
208
209 roar_err_set(ROAR_ERROR_NONE);
210 return 0;
211}
212
213void roar_panic_real(enum roar_fatal_error error, const char * info,
214                     unsigned long int line, const char * file, const char * prefix, const char * func) {
215 const char * errname = NULL;
216//#define ROAR_ERR(format, args...)  roar_debug_msg(ROAR_DEBUG_TYPE_ERROR, __LINE__, __FILE__, ROAR_DBG_PREFIX, format, ## args)
217
218 // we do not support info-text at the moment.
219 (void)info;
220
221 if ( func == NULL )
222  func = "<unknown>";
223
224 switch (error) {
225  case ROAR_FATAL_ERROR_MEMORY_CORRUPTION_GUARD:
226    roar_debug_msg(ROAR_DEBUG_TYPE_ERROR, line, file, prefix, "in %s() a guard segment memory corruption was detected. Backup your data and terminate this program. Report this lion to developer. Thanks.", func);
227    return;
228   break;
229  case ROAR_FATAL_ERROR_UNKNOWN:
230    errname = "<unknown error>";
231   break;
232  case ROAR_FATAL_ERROR_MEMORY_CORRUPTION:
233    errname = "Memory corruption";
234   break;
235  case ROAR_FATAL_ERROR_CPU_FAILURE:
236    errname = "CPU failure, replace hardware";
237   break;
238  case ROAR_FATAL_ERROR_MEMORY_USED_AFTER_FREE:
239    errname = "Memory used after free";
240   break;
241  case ROAR_FATAL_ERROR_MEMORY_DOUBLE_FREE:
242    errname = "Memory double freed";
243   break;
244  default:
245    errname = "<unknown error code, BAD>";
246   break;
247 }
248
249 roar_debug_msg(ROAR_DEBUG_TYPE_ERROR, line, file, prefix, "in %s() a _FATAL_ error of type \"%s\" was detected. Terminating program. Report this lion to developer. Thanks.", func, errname);
250
251#ifdef SIGKILL
252 raise(SIGKILL);
253#endif
254 abort();
255
256 while(1);
257}
258
259const char   * roar_version_string(void) {
260 return ROAR_VERSION_STRING;
261}
262
263uint32_t roar_version_num(void) {
264 return _ROAR_MKVERSION(ROAR_VERSION_MAJOR, ROAR_VERSION_MINOR, ROAR_VERSION_REV);
265}
266
267//ll
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