[0] | 1 | //libroar.c: |
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| 2 | |
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[690] | 3 | /* |
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[5381] | 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2012 |
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[690] | 5 | * |
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| 6 | * This file is part of libroar a part of RoarAudio, |
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| 7 | * a cross-platform sound system for both, home and professional use. |
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| 8 | * See README for details. |
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| 9 | * |
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| 10 | * This file is free software; you can redistribute it and/or modify |
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| 11 | * it under the terms of the GNU General Public License version 3 |
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| 12 | * as published by the Free Software Foundation. |
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| 13 | * |
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| 14 | * libroar is distributed in the hope that it will be useful, |
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 17 | * GNU General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with this software; see the file COPYING. If not, write to |
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[3517] | 21 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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| 22 | * Boston, MA 02110-1301, USA. |
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[690] | 23 | * |
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| 24 | * NOTE for everyone want's to change something and send patches: |
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| 25 | * read README and HACKING! There a addition information on |
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| 26 | * the license of this document you need to read before you send |
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| 27 | * any patches. |
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| 28 | * |
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| 29 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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| 30 | * or libpulse*: |
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| 31 | * The libs libroaresd, libroararts and libroarpulse link this lib |
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| 32 | * and are therefore GPL. Because of this it may be illigal to use |
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| 33 | * them with any software that uses libesd, libartsc or libpulse*. |
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| 34 | */ |
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| 35 | |
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[4916] | 36 | /* ckport options: |
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[4923] | 37 | * ckport: ignore-symbol: sleep of target win32 -- checked by configure |
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[4916] | 38 | */ |
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| 39 | |
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[0] | 40 | #include "libroar.h" |
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| 41 | |
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[4243] | 42 | #ifndef roar_mm_mlock |
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| 43 | int roar_mm_mlock(const void *addr, size_t len) { |
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[1434] | 44 | #if defined(ROAR_TARGET_WIN32) |
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[4945] | 45 | /* GlobalLock() generates errors. Maybe we do not use correctly. |
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| 46 | * We just ignore that at the moment and throw NOSYS. |
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| 47 | * |
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| 48 | * return GlobalLock(addr) == addr ? 0 : -1; |
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| 49 | */ |
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| 50 | roar_err_set(ROAR_ERROR_NOSYS); |
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| 51 | return -1; |
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[1434] | 52 | #elif defined(ROAR_TARGET_MICROCONTROLLER) |
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| 53 | return 0; |
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[4554] | 54 | #elif defined(_SC_PAGESIZE) |
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[700] | 55 | long sz = sysconf(_SC_PAGESIZE); |
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| 56 | unsigned long int pos = (unsigned long int) addr; |
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| 57 | |
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| 58 | len += sz - (len % sz); |
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| 59 | |
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| 60 | pos -= pos % sz; |
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| 61 | |
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| 62 | return mlock((void*)pos, len); |
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[4554] | 63 | #else |
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[4945] | 64 | roar_err_set(ROAR_ERROR_NOSYS); |
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[4554] | 65 | return -1; |
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[1076] | 66 | #endif |
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[700] | 67 | } |
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[4243] | 68 | #endif |
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| 69 | |
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| 70 | #ifndef roar_mm_munlock |
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| 71 | int roar_mm_munlock(const void *addr, size_t len) { |
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| 72 | #if defined(ROAR_TARGET_WIN32) |
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| 73 | // TODO: find out what do do here. GlobalUnLock()? does such a function exist? |
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| 74 | // return GlobalLock(addr) == addr ? 0 : -1; |
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[4945] | 75 | roar_err_set(ROAR_ERROR_NOSYS); |
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[4243] | 76 | return -1; |
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| 77 | #elif defined(ROAR_TARGET_MICROCONTROLLER) |
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| 78 | return 0; |
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[4554] | 79 | #elif defined(_SC_PAGESIZE) |
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[4243] | 80 | long sz = sysconf(_SC_PAGESIZE); |
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| 81 | unsigned long int pos = (unsigned long int) addr; |
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| 82 | |
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| 83 | len += sz - (len % sz); |
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| 84 | |
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| 85 | pos -= pos % sz; |
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| 86 | |
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| 87 | return munlock((void*)pos, len); |
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[4554] | 88 | #else |
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[4945] | 89 | roar_err_set(ROAR_ERROR_NOSYS); |
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[4554] | 90 | return -1; |
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[4243] | 91 | #endif |
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| 92 | } |
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| 93 | #endif |
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| 94 | |
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| 95 | // for compatibility with old versions: |
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| 96 | int _ROAR_MLOCK(const void *addr, size_t len) { |
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| 97 | roar_debug_warn_obsolete("_ROAR_MLOCK", "roar_mm_mlock", NULL); |
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| 98 | return roar_mm_mlock(addr, len); |
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| 99 | } |
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[700] | 100 | |
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[4913] | 101 | int roar_usleep(uint_least32_t t) { |
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[4896] | 102 | #ifdef ROAR_TARGET_WIN32 |
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| 103 | Sleep(t/(uint_least32_t)1000); |
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[4913] | 104 | return 0; |
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[4896] | 105 | #elif defined(ROAR_HAVE_NANOSLEEP) |
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| 106 | struct timespec tv; |
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| 107 | struct timespec left; |
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| 108 | |
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| 109 | if ( t > (uint_least32_t)1000000 ) { |
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| 110 | tv.tv_sec = t/(uint_least32_t)1000000; |
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| 111 | t -= tv.tv_sec*(uint_least32_t)1000000; |
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| 112 | } else { |
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| 113 | tv.tv_sec = 0; |
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| 114 | } |
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| 115 | |
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| 116 | tv.tv_nsec = t*(uint_least32_t)1000; |
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| 117 | |
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| 118 | while (nanosleep(&tv, &left) == -1) |
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| 119 | memcpy(&tv, &left, sizeof(tv)); |
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[4913] | 120 | return 0; |
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[4896] | 121 | #elif defined(ROAR_HAVE_USLEEP) |
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| 122 | usleep(t); |
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[4913] | 123 | return 0; |
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[4896] | 124 | #else |
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| 125 | ROAR_ERR("roar_usleep(t=%llu): can not sleep: not implemented", (long long unsigned int)t); |
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| 126 | roar_strap(ROAR_TRAP_GROUP_LIBROAR, "usleep.not-implemented"); |
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| 127 | roar_err_set(ROAR_ERROR_NOSYS); |
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[4913] | 128 | return -1; |
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[4896] | 129 | #endif |
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| 130 | } |
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| 131 | |
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[4913] | 132 | int roar_sleep(int t) { |
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| 133 | if ( t < 0 ) { |
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| 134 | roar_err_set(ROAR_ERROR_CAUSALITY); |
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| 135 | return -1; |
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| 136 | } |
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| 137 | |
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[4915] | 138 | #ifdef ROAR_TARGET_WIN32 |
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| 139 | Sleep(1000L*(long)t); |
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[5020] | 140 | #elif defined(ROAR_HAVE_SLEEP) |
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[4913] | 141 | while (t) |
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| 142 | t = sleep(t); |
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[5020] | 143 | #else |
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| 144 | while (t) { |
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| 145 | if ( roar_usleep(500000) == -1 ) |
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| 146 | return -1; |
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| 147 | if ( roar_usleep(500000) == -1 ) |
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| 148 | return -1; |
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| 149 | t--; |
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| 150 | } |
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[4915] | 151 | #endif |
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[4913] | 152 | |
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| 153 | return 0; |
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| 154 | } |
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| 155 | |
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[5373] | 156 | static pid_t _libroar_fork(void ** context, void * userdata) { |
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[5390] | 157 | #ifdef ROAR_HAVE_FORK |
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[5373] | 158 | pid_t ret; |
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| 159 | (void)context, (void)userdata; |
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| 160 | ret = fork(); |
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| 161 | if ( ret == -1 ) |
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| 162 | roar_err_from_errno(); |
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| 163 | return ret; |
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[5390] | 164 | #else |
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| 165 | roar_err_set(ROAR_ERROR_NOSYS); |
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| 166 | return (pid_t)-1; |
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| 167 | #endif |
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[5373] | 168 | } |
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| 169 | |
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| 170 | static const struct roar_libroar_forkapi _libroar_forkapi = { |
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| 171 | .prefork = NULL, |
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| 172 | .fork = _libroar_fork, |
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| 173 | .failed = NULL, |
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| 174 | .parent = NULL, |
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| 175 | .child = NULL, |
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| 176 | .userdata = NULL |
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| 177 | }; |
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| 178 | |
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| 179 | pid_t roar_fork(const struct roar_libroar_forkapi * api) { |
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| 180 | void * context = NULL; |
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| 181 | int err; |
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| 182 | pid_t ret; |
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| 183 | |
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| 184 | if ( api == NULL ) |
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| 185 | api = &_libroar_forkapi; |
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| 186 | |
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| 187 | if ( api->fork == NULL ) { |
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| 188 | roar_err_set(ROAR_ERROR_INVAL); |
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| 189 | return -1; |
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| 190 | } |
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| 191 | |
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| 192 | if ( api->prefork != NULL ) { |
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| 193 | if ( api->prefork(&context, api->userdata) != 0 ) { |
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| 194 | if ( api->failed != NULL ) |
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| 195 | api->failed(&context, api->userdata); |
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| 196 | |
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| 197 | if ( context != NULL ) { |
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| 198 | err = roar_error; |
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| 199 | roar_mm_free(context); |
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| 200 | roar_error = err; |
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| 201 | } |
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| 202 | return (pid_t)-1; |
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| 203 | } |
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| 204 | } |
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| 205 | |
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| 206 | if ( (ret = api->fork(&context, api->userdata)) == (pid_t)-1 ) { |
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| 207 | if ( api->failed != NULL ) |
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| 208 | api->failed(&context, api->userdata); |
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| 209 | |
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| 210 | if ( context != NULL ) { |
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| 211 | err = roar_error; |
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| 212 | roar_mm_free(context); |
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| 213 | roar_error = err; |
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| 214 | } |
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| 215 | return (pid_t)-1; |
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| 216 | } |
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| 217 | |
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| 218 | if ( ret == (pid_t)0 ) { |
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| 219 | if ( api->child != NULL ) |
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| 220 | api->child(&context, api->userdata); |
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| 221 | } else { |
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| 222 | if ( api->parent != NULL ) |
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| 223 | api->parent(&context, api->userdata, ret); |
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| 224 | } |
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| 225 | |
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| 226 | if ( context != NULL ) { |
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| 227 | err = roar_error; |
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| 228 | roar_mm_free(context); |
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| 229 | roar_error = err; |
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| 230 | } |
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| 231 | |
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| 232 | return ret; |
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| 233 | } |
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| 234 | |
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[5010] | 235 | int roar_reset(enum roar_reset what) { |
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[4965] | 236 | char c; |
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| 237 | int i; |
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[5010] | 238 | enum roar_reset subsets = ROAR_RESET_NONE; |
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[4965] | 239 | |
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| 240 | roar_err_set(ROAR_ERROR_NONE); |
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| 241 | |
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[5010] | 242 | switch (what) { |
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| 243 | case ROAR_RESET_NONE: |
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| 244 | return 0; |
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| 245 | break; |
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| 246 | case ROAR_RESET_UNKNOWN: |
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| 247 | case ROAR_RESET_EOL: |
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| 248 | roar_err_set(ROAR_ERROR_INVAL); |
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| 249 | return -1; |
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| 250 | break; |
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| 251 | case ROAR_RESET_ON_FORK: |
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| 252 | subsets |= ROAR_RESET_MEMORY|ROAR_RESET_RANDOMPOOL; |
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| 253 | break; |
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| 254 | case ROAR_RESET_ON_EXIT: |
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| 255 | case ROAR_RESET_ON_PRE_EXEC: |
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| 256 | subsets |= ROAR_RESET_MEMORY|ROAR_RESET_CONFIG; |
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| 257 | break; |
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| 258 | default: |
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| 259 | if ( what & 0x80 ) { |
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| 260 | subsets |= what; |
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| 261 | } else { |
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| 262 | roar_err_set(ROAR_ERROR_INVAL); |
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| 263 | return -1; |
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| 264 | } |
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| 265 | break; |
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[4965] | 266 | } |
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| 267 | |
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[5010] | 268 | // strip 0x80 so we can easly test on the other bit per subsystem. |
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| 269 | what |= 0x80; |
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| 270 | what -= 0x80; |
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| 271 | |
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| 272 | if ( what & ROAR_RESET_MEMORY ) { |
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[5017] | 273 | (void)roar_mm_reset(); |
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[5010] | 274 | } |
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| 275 | |
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| 276 | if ( what & ROAR_RESET_CONFIG ) { |
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| 277 | roar_libroar_reset_config(); |
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| 278 | } |
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| 279 | |
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| 280 | if ( what & ROAR_RESET_RANDOMPOOL ) { |
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| 281 | for (i = 0; i < 16; i++) { |
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| 282 | roar_random_gen_nonce(&c, 1); |
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| 283 | roar_random_uint16(); |
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| 284 | roar_random_uint32(); |
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| 285 | } |
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| 286 | } |
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| 287 | |
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| 288 | roar_err_set(ROAR_ERROR_NONE); |
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[4965] | 289 | return 0; |
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| 290 | } |
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| 291 | |
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[4970] | 292 | void roar_panic_real(enum roar_fatal_error error, const char * info, |
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| 293 | unsigned long int line, const char * file, const char * prefix, const char * func) { |
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| 294 | const char * errname = NULL; |
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| 295 | //#define ROAR_ERR(format, args...) roar_debug_msg(ROAR_DEBUG_TYPE_ERROR, __LINE__, __FILE__, ROAR_DBG_PREFIX, format, ## args) |
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| 296 | |
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[5270] | 297 | // we do not support info-text at the moment. |
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| 298 | (void)info; |
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| 299 | |
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[4970] | 300 | if ( func == NULL ) |
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| 301 | func = "<unknown>"; |
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| 302 | |
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| 303 | switch (error) { |
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| 304 | case ROAR_FATAL_ERROR_MEMORY_CORRUPTION_GUARD: |
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[4972] | 305 | 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); |
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[4970] | 306 | return; |
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| 307 | break; |
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| 308 | case ROAR_FATAL_ERROR_UNKNOWN: |
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| 309 | errname = "<unknown error>"; |
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| 310 | break; |
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| 311 | case ROAR_FATAL_ERROR_MEMORY_CORRUPTION: |
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| 312 | errname = "Memory corruption"; |
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| 313 | break; |
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[4998] | 314 | case ROAR_FATAL_ERROR_CPU_FAILURE: |
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| 315 | errname = "CPU failure, replace hardware"; |
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| 316 | break; |
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| 317 | case ROAR_FATAL_ERROR_MEMORY_USED_AFTER_FREE: |
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| 318 | errname = "Memory used after free"; |
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| 319 | break; |
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| 320 | case ROAR_FATAL_ERROR_MEMORY_DOUBLE_FREE: |
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| 321 | errname = "Memory double freed"; |
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[4970] | 322 | break; |
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| 323 | default: |
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| 324 | errname = "<unknown error code, BAD>"; |
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| 325 | break; |
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| 326 | } |
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| 327 | |
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[4972] | 328 | 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); |
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[4970] | 329 | |
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| 330 | #ifdef SIGKILL |
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| 331 | raise(SIGKILL); |
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| 332 | #endif |
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| 333 | abort(); |
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| 334 | |
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| 335 | while(1); |
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| 336 | } |
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| 337 | |
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[4976] | 338 | const char * roar_version_string(void) { |
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| 339 | return ROAR_VERSION_STRING; |
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| 340 | } |
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| 341 | |
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| 342 | uint32_t roar_version_num(void) { |
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| 343 | return _ROAR_MKVERSION(ROAR_VERSION_MAJOR, ROAR_VERSION_MINOR, ROAR_VERSION_REV); |
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| 344 | } |
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| 345 | |
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[0] | 346 | //ll |
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