Differences From Artifact [608d6df3a8]:
- File src/platform/posix/mutex.m — part of check-in [109db78ecd] at 2020-02-29 14:49:23 on branch trunk — Move platform specific files into a subdirectory (user: js, size: 3300) [annotate] [blame] [check-ins using] [more...]
To Artifact [9dc6dfa8c4]:
- File
src/platform/posix/mutex.m
— part of check-in
[5b37fbeb82]
at
2020-12-20 21:26:08
on branch trunk
— Return error instead of using errno for threading
errno is problematic for Amiga libraries and is also not thread-safe on
some systems, even though it should. (user: js, size: 3542) [annotate] [blame] [check-ins using] [more...]
︙ | ︙ | |||
15 16 17 18 19 20 21 | * file. */ #include "config.h" #import "mutex.h" | < > | < > | < > | < > | < > | < > > | | | > | | | | | | < > < > < > < > < > > > | | | | | < > > | > | | | | | | | < > > | > | | | | | | | < > > | > | | | | | | | < > > > | | | | | | 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 | * file. */ #include "config.h" #import "mutex.h" int of_mutex_new(of_mutex_t *mutex) { return pthread_mutex_init(mutex, NULL); } int of_mutex_lock(of_mutex_t *mutex) { return pthread_mutex_lock(mutex); } int of_mutex_trylock(of_mutex_t *mutex) { return pthread_mutex_trylock(mutex); } int of_mutex_unlock(of_mutex_t *mutex) { return pthread_mutex_unlock(mutex); } int of_mutex_free(of_mutex_t *mutex) { return pthread_mutex_destroy(mutex); } #ifdef OF_HAVE_RECURSIVE_PTHREAD_MUTEXES int of_rmutex_new(of_rmutex_t *rmutex) { int error; pthread_mutexattr_t attr; if ((error = pthread_mutexattr_init(&attr)) != 0) return error; if ((error = pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE)) != 0) return error; if ((error = pthread_mutex_init(rmutex, &attr)) != 0) return error; if ((error = pthread_mutexattr_destroy(&attr)) != 0) return error; return 0; } int of_rmutex_lock(of_rmutex_t *rmutex) { return of_mutex_lock(rmutex); } int of_rmutex_trylock(of_rmutex_t *rmutex) { return of_mutex_trylock(rmutex); } int of_rmutex_unlock(of_rmutex_t *rmutex) { return of_mutex_unlock(rmutex); } int of_rmutex_free(of_rmutex_t *rmutex) { return of_mutex_free(rmutex); } #else int of_rmutex_new(of_rmutex_t *rmutex) { int error; if ((error = of_mutex_new(&rmutex->mutex)) != 0) return error; if ((error = of_tlskey_new(&rmutex->count)) != 0) return error; return 0; } int of_rmutex_lock(of_rmutex_t *rmutex) { uintptr_t count = (uintptr_t)of_tlskey_get(rmutex->count); int error; if (count > 0) { if ((error = of_tlskey_set(rmutex->count, (void *)(count + 1))) != 0) return error; return 0; } if ((error = of_mutex_lock(&rmutex->mutex)) != 0) return error; if ((error = of_tlskey_set(rmutex->count, (void *)1)) != 0) { of_mutex_unlock(&rmutex->mutex); return error; } return 0; } int of_rmutex_trylock(of_rmutex_t *rmutex) { uintptr_t count = (uintptr_t)of_tlskey_get(rmutex->count); int error; if (count > 0) { if ((error = of_tlskey_set(rmutex->count, (void *)(count + 1))) != 0) return error; return 0; } if ((error = of_mutex_trylock(&rmutex->mutex)) != 0) return error; if ((error = of_tlskey_set(rmutex->count, (void *)1)) != 0) { of_mutex_unlock(&rmutex->mutex); return error; } return 0; } int of_rmutex_unlock(of_rmutex_t *rmutex) { uintptr_t count = (uintptr_t)of_tlskey_get(rmutex->count); int error; if (count > 1) { if ((error = of_tlskey_set(rmutex->count, (void *)(count - 1))) != 0) return error; return 0; } if ((error = of_tlskey_set(rmutex->count, (void *)0)) != 0) return error; if ((error = of_mutex_unlock(&rmutex->mutex)) != 0) return error; return 0; } int of_rmutex_free(of_rmutex_t *rmutex) { int error; if ((error = of_mutex_free(&rmutex->mutex)) != 0) return error; if ((error = of_tlskey_free(rmutex->count)) != 0) return error; return 0; } #endif |