Mercurial > trustbridge > nss-cmake-static
comparison nspr/pr/include/md/_pth.h @ 0:1e5118fa0cb1
This is NSS with a Cmake Buildsyste
To compile a static NSS library for Windows we've used the
Chromium-NSS fork and added a Cmake buildsystem to compile
it statically for Windows. See README.chromium for chromium
changes and README.trustbridge for our modifications.
| author | Andre Heinecke <andre.heinecke@intevation.de> |
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| date | Mon, 28 Jul 2014 10:47:06 +0200 |
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| -1:000000000000 | 0:1e5118fa0cb1 |
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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef nspr_pth_defs_h_ | |
| 7 #define nspr_pth_defs_h_ | |
| 8 | |
| 9 /* | |
| 10 ** Appropriate definitions of entry points not used in a pthreads world | |
| 11 */ | |
| 12 #define _PR_MD_BLOCK_CLOCK_INTERRUPTS() | |
| 13 #define _PR_MD_UNBLOCK_CLOCK_INTERRUPTS() | |
| 14 #define _PR_MD_DISABLE_CLOCK_INTERRUPTS() | |
| 15 #define _PR_MD_ENABLE_CLOCK_INTERRUPTS() | |
| 16 | |
| 17 /* In good standards fashion, the DCE threads (based on posix-4) are not | |
| 18 * quite the same as newer posix implementations. These are mostly name | |
| 19 * changes and small differences, so macros usually do the trick | |
| 20 */ | |
| 21 #ifdef _PR_DCETHREADS | |
| 22 #define _PT_PTHREAD_MUTEXATTR_INIT pthread_mutexattr_create | |
| 23 #define _PT_PTHREAD_MUTEXATTR_DESTROY pthread_mutexattr_delete | |
| 24 #define _PT_PTHREAD_MUTEX_INIT(m, a) pthread_mutex_init(&(m), a) | |
| 25 #define _PT_PTHREAD_MUTEX_IS_LOCKED(m) (0 == pthread_mutex_trylock(&(m))) | |
| 26 #define _PT_PTHREAD_CONDATTR_INIT pthread_condattr_create | |
| 27 #define _PT_PTHREAD_COND_INIT(m, a) pthread_cond_init(&(m), a) | |
| 28 #define _PT_PTHREAD_CONDATTR_DESTROY pthread_condattr_delete | |
| 29 | |
| 30 /* Notes about differences between DCE threads and pthreads 10: | |
| 31 * 1. pthread_mutex_trylock returns 1 when it locks the mutex | |
| 32 * 0 when it does not. The latest pthreads has a set of errno-like | |
| 33 * return values. | |
| 34 * 2. return values from pthread_cond_timedwait are different. | |
| 35 * | |
| 36 * | |
| 37 * | |
| 38 */ | |
| 39 #elif defined(BSDI) | |
| 40 /* | |
| 41 * Mutex and condition attributes are not supported. The attr | |
| 42 * argument to pthread_mutex_init() and pthread_cond_init() must | |
| 43 * be passed as NULL. | |
| 44 * | |
| 45 * The memset calls in _PT_PTHREAD_MUTEX_INIT and _PT_PTHREAD_COND_INIT | |
| 46 * are to work around BSDI's using a single bit to indicate a mutex | |
| 47 * or condition variable is initialized. This entire BSDI section | |
| 48 * will go away when BSDI releases updated threads libraries for | |
| 49 * BSD/OS 3.1 and 4.0. | |
| 50 */ | |
| 51 #define _PT_PTHREAD_MUTEXATTR_INIT(x) 0 | |
| 52 #define _PT_PTHREAD_MUTEXATTR_DESTROY(x) /* */ | |
| 53 #define _PT_PTHREAD_MUTEX_INIT(m, a) (memset(&(m), 0, sizeof(m)), \ | |
| 54 pthread_mutex_init(&(m), NULL)) | |
| 55 #define _PT_PTHREAD_MUTEX_IS_LOCKED(m) (EBUSY == pthread_mutex_trylock(&(m))) | |
| 56 #define _PT_PTHREAD_CONDATTR_INIT(x) 0 | |
| 57 #define _PT_PTHREAD_CONDATTR_DESTROY(x) /* */ | |
| 58 #define _PT_PTHREAD_COND_INIT(m, a) (memset(&(m), 0, sizeof(m)), \ | |
| 59 pthread_cond_init(&(m), NULL)) | |
| 60 #else | |
| 61 #define _PT_PTHREAD_MUTEXATTR_INIT pthread_mutexattr_init | |
| 62 #define _PT_PTHREAD_MUTEXATTR_DESTROY pthread_mutexattr_destroy | |
| 63 #define _PT_PTHREAD_MUTEX_INIT(m, a) pthread_mutex_init(&(m), &(a)) | |
| 64 #if defined(FREEBSD) | |
| 65 #define _PT_PTHREAD_MUTEX_IS_LOCKED(m) pt_pthread_mutex_is_locked(&(m)) | |
| 66 #else | |
| 67 #define _PT_PTHREAD_MUTEX_IS_LOCKED(m) (EBUSY == pthread_mutex_trylock(&(m))) | |
| 68 #endif | |
| 69 #if defined(ANDROID) | |
| 70 /* Conditional attribute init and destroy aren't implemented in bionic. */ | |
| 71 #define _PT_PTHREAD_CONDATTR_INIT(x) 0 | |
| 72 #define _PT_PTHREAD_CONDATTR_DESTROY(x) /* */ | |
| 73 #else | |
| 74 #define _PT_PTHREAD_CONDATTR_INIT pthread_condattr_init | |
| 75 #define _PT_PTHREAD_CONDATTR_DESTROY pthread_condattr_destroy | |
| 76 #endif | |
| 77 #define _PT_PTHREAD_COND_INIT(m, a) pthread_cond_init(&(m), &(a)) | |
| 78 #endif | |
| 79 | |
| 80 /* The pthreads standard does not specify an invalid value for the | |
| 81 * pthread_t handle. (0 is usually an invalid pthread identifier | |
| 82 * but there are exceptions, for example, DG/UX.) These macros | |
| 83 * define a way to set the handle to or compare the handle with an | |
| 84 * invalid identifier. These macros are not portable and may be | |
| 85 * more of a problem as we adapt to more pthreads implementations. | |
| 86 * They are only used in the PRMonitor functions. Do not use them | |
| 87 * in new code. | |
| 88 * | |
| 89 * Unfortunately some of our clients depend on certain properties | |
| 90 * of our PRMonitor implementation, preventing us from replacing | |
| 91 * it by a portable implementation. | |
| 92 * - High-performance servers like the fact that PR_EnterMonitor | |
| 93 * only calls PR_Lock and PR_ExitMonitor only calls PR_Unlock. | |
| 94 * (A portable implementation would use a PRLock and a PRCondVar | |
| 95 * to implement the recursive lock in a monitor and call both | |
| 96 * PR_Lock and PR_Unlock in PR_EnterMonitor and PR_ExitMonitor.) | |
| 97 * Unfortunately this forces us to read the monitor owner field | |
| 98 * without holding a lock. | |
| 99 * - One way to make it safe to read the monitor owner field | |
| 100 * without holding a lock is to make that field a PRThread* | |
| 101 * (one should be able to read a pointer with a single machine | |
| 102 * instruction). However, PR_GetCurrentThread calls calloc if | |
| 103 * it is called by a thread that was not created by NSPR. The | |
| 104 * malloc tracing tools in the Mozilla client use PRMonitor for | |
| 105 * locking in their malloc, calloc, and free functions. If | |
| 106 * PR_EnterMonitor calls any of these functions, infinite | |
| 107 * recursion ensues. | |
| 108 */ | |
| 109 #if defined(_PR_DCETHREADS) | |
| 110 #define _PT_PTHREAD_INVALIDATE_THR_HANDLE(t) \ | |
| 111 memset(&(t), 0, sizeof(pthread_t)) | |
| 112 #define _PT_PTHREAD_THR_HANDLE_IS_INVALID(t) \ | |
| 113 (!memcmp(&(t), &pt_zero_tid, sizeof(pthread_t))) | |
| 114 #define _PT_PTHREAD_COPY_THR_HANDLE(st, dt) (dt) = (st) | |
| 115 #elif defined(IRIX) || defined(OSF1) || defined(AIX) || defined(SOLARIS) \ | |
| 116 || defined(LINUX) || defined(__GNU__) || defined(__GLIBC__) \ | |
| 117 || defined(HPUX) || defined(FREEBSD) \ | |
| 118 || defined(NETBSD) || defined(OPENBSD) || defined(BSDI) \ | |
| 119 || defined(NTO) || defined(DARWIN) \ | |
| 120 || defined(UNIXWARE) || defined(RISCOS) || defined(SYMBIAN) | |
| 121 #define _PT_PTHREAD_INVALIDATE_THR_HANDLE(t) (t) = 0 | |
| 122 #define _PT_PTHREAD_THR_HANDLE_IS_INVALID(t) (t) == 0 | |
| 123 #define _PT_PTHREAD_COPY_THR_HANDLE(st, dt) (dt) = (st) | |
| 124 #else | |
| 125 #error "pthreads is not supported for this architecture" | |
| 126 #endif | |
| 127 | |
| 128 #if defined(_PR_DCETHREADS) | |
| 129 #define _PT_PTHREAD_ATTR_INIT pthread_attr_create | |
| 130 #define _PT_PTHREAD_ATTR_DESTROY pthread_attr_delete | |
| 131 #define _PT_PTHREAD_CREATE(t, a, f, r) pthread_create(t, a, f, r) | |
| 132 #define _PT_PTHREAD_KEY_CREATE pthread_keycreate | |
| 133 #define _PT_PTHREAD_ATTR_SETSCHEDPOLICY pthread_attr_setsched | |
| 134 #define _PT_PTHREAD_ATTR_GETSTACKSIZE(a, s) \ | |
| 135 (*(s) = pthread_attr_getstacksize(*(a)), 0) | |
| 136 #define _PT_PTHREAD_GETSPECIFIC(k, r) \ | |
| 137 pthread_getspecific((k), (pthread_addr_t *) &(r)) | |
| 138 #elif defined(_PR_PTHREADS) | |
| 139 #define _PT_PTHREAD_ATTR_INIT pthread_attr_init | |
| 140 #define _PT_PTHREAD_ATTR_DESTROY pthread_attr_destroy | |
| 141 #define _PT_PTHREAD_CREATE(t, a, f, r) pthread_create(t, &a, f, r) | |
| 142 #define _PT_PTHREAD_KEY_CREATE pthread_key_create | |
| 143 #define _PT_PTHREAD_ATTR_SETSCHEDPOLICY pthread_attr_setschedpolicy | |
| 144 #define _PT_PTHREAD_ATTR_GETSTACKSIZE(a, s) pthread_attr_getstacksize(a, s) | |
| 145 #define _PT_PTHREAD_GETSPECIFIC(k, r) (r) = pthread_getspecific(k) | |
| 146 #else | |
| 147 #error "Cannot determine pthread strategy" | |
| 148 #endif | |
| 149 | |
| 150 #if defined(_PR_DCETHREADS) | |
| 151 #define _PT_PTHREAD_EXPLICIT_SCHED _PT_PTHREAD_DEFAULT_SCHED | |
| 152 #endif | |
| 153 | |
| 154 /* | |
| 155 * pthread_mutex_trylock returns different values in DCE threads and | |
| 156 * pthreads. | |
| 157 */ | |
| 158 #if defined(_PR_DCETHREADS) | |
| 159 #define PT_TRYLOCK_SUCCESS 1 | |
| 160 #define PT_TRYLOCK_BUSY 0 | |
| 161 #else | |
| 162 #define PT_TRYLOCK_SUCCESS 0 | |
| 163 #define PT_TRYLOCK_BUSY EBUSY | |
| 164 #endif | |
| 165 | |
| 166 /* | |
| 167 * These platforms don't have sigtimedwait() | |
| 168 */ | |
| 169 #if (defined(AIX) && !defined(AIX4_3_PLUS)) \ | |
| 170 || defined(LINUX) || defined(__GNU__)|| defined(__GLIBC__) \ | |
| 171 || defined(FREEBSD) || defined(NETBSD) || defined(OPENBSD) \ | |
| 172 || defined(BSDI) || defined(UNIXWARE) \ | |
| 173 || defined(DARWIN) || defined(SYMBIAN) | |
| 174 #define PT_NO_SIGTIMEDWAIT | |
| 175 #endif | |
| 176 | |
| 177 #if defined(OSF1) | |
| 178 #define PT_PRIO_MIN PRI_OTHER_MIN | |
| 179 #define PT_PRIO_MAX PRI_OTHER_MAX | |
| 180 #elif defined(IRIX) | |
| 181 #include <sys/sched.h> | |
| 182 #define PT_PRIO_MIN PX_PRIO_MIN | |
| 183 #define PT_PRIO_MAX PX_PRIO_MAX | |
| 184 #elif defined(AIX) | |
| 185 #include <sys/priv.h> | |
| 186 #include <sys/sched.h> | |
| 187 #ifndef PTHREAD_CREATE_JOINABLE | |
| 188 #define PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED | |
| 189 #endif | |
| 190 #define PT_PRIO_MIN DEFAULT_PRIO | |
| 191 #define PT_PRIO_MAX DEFAULT_PRIO | |
| 192 #elif defined(HPUX) | |
| 193 | |
| 194 #if defined(_PR_DCETHREADS) | |
| 195 #define PT_PRIO_MIN PRI_OTHER_MIN | |
| 196 #define PT_PRIO_MAX PRI_OTHER_MAX | |
| 197 #else /* defined(_PR_DCETHREADS) */ | |
| 198 #include <sys/sched.h> | |
| 199 #define PT_PRIO_MIN sched_get_priority_min(SCHED_OTHER) | |
| 200 #define PT_PRIO_MAX sched_get_priority_max(SCHED_OTHER) | |
| 201 #endif /* defined(_PR_DCETHREADS) */ | |
| 202 | |
| 203 #elif defined(LINUX) || defined(__GNU__) || defined(__GLIBC__) \ | |
| 204 || defined(FREEBSD) || defined(SYMBIAN) | |
| 205 #define PT_PRIO_MIN sched_get_priority_min(SCHED_OTHER) | |
| 206 #define PT_PRIO_MAX sched_get_priority_max(SCHED_OTHER) | |
| 207 #elif defined(NTO) | |
| 208 /* | |
| 209 * Neutrino has functions that return the priority range but | |
| 210 * they return invalid numbers, so I just hard coded these here | |
| 211 * for now. Jerry.Kirk@Nexarecorp.com | |
| 212 */ | |
| 213 #define PT_PRIO_MIN 0 | |
| 214 #define PT_PRIO_MAX 30 | |
| 215 #elif defined(SOLARIS) | |
| 216 /* | |
| 217 * Solaris doesn't seem to have macros for the min/max priorities. | |
| 218 * The range of 0-127 is mentioned in the pthread_setschedparam(3T) | |
| 219 * man pages, and pthread_setschedparam indeed allows 0-127. However, | |
| 220 * pthread_attr_setschedparam does not allow 0; it allows 1-127. | |
| 221 */ | |
| 222 #define PT_PRIO_MIN 1 | |
| 223 #define PT_PRIO_MAX 127 | |
| 224 #elif defined(OPENBSD) | |
| 225 #define PT_PRIO_MIN 0 | |
| 226 #define PT_PRIO_MAX 31 | |
| 227 #elif defined(NETBSD) \ | |
| 228 || defined(BSDI) || defined(DARWIN) || defined(UNIXWARE) \ | |
| 229 || defined(RISCOS) /* XXX */ | |
| 230 #define PT_PRIO_MIN 0 | |
| 231 #define PT_PRIO_MAX 126 | |
| 232 #else | |
| 233 #error "pthreads is not supported for this architecture" | |
| 234 #endif | |
| 235 | |
| 236 /* | |
| 237 * The _PT_PTHREAD_YIELD function is called from a signal handler. | |
| 238 * Needed for garbage collection -- Look at PR_Suspend/PR_Resume | |
| 239 * implementation. | |
| 240 */ | |
| 241 #if defined(_PR_DCETHREADS) | |
| 242 #define _PT_PTHREAD_YIELD() pthread_yield() | |
| 243 #elif defined(OSF1) | |
| 244 /* | |
| 245 * sched_yield can't be called from a signal handler. Must use | |
| 246 * the _np version. | |
| 247 */ | |
| 248 #define _PT_PTHREAD_YIELD() pthread_yield_np() | |
| 249 #elif defined(AIX) | |
| 250 extern int (*_PT_aix_yield_fcn)(); | |
| 251 #define _PT_PTHREAD_YIELD() (*_PT_aix_yield_fcn)() | |
| 252 #elif defined(IRIX) | |
| 253 #include <time.h> | |
| 254 #define _PT_PTHREAD_YIELD() \ | |
| 255 PR_BEGIN_MACRO \ | |
| 256 struct timespec onemillisec = {0}; \ | |
| 257 onemillisec.tv_nsec = 1000000L; \ | |
| 258 nanosleep(&onemillisec,NULL); \ | |
| 259 PR_END_MACRO | |
| 260 #elif defined(HPUX) || defined(SOLARIS) \ | |
| 261 || defined(LINUX) || defined(__GNU__) || defined(__GLIBC__) \ | |
| 262 || defined(FREEBSD) || defined(NETBSD) || defined(OPENBSD) \ | |
| 263 || defined(BSDI) || defined(NTO) || defined(DARWIN) \ | |
| 264 || defined(UNIXWARE) || defined(RISCOS) || defined(SYMBIAN) | |
| 265 #define _PT_PTHREAD_YIELD() sched_yield() | |
| 266 #else | |
| 267 #error "Need to define _PT_PTHREAD_YIELD for this platform" | |
| 268 #endif | |
| 269 | |
| 270 #endif /* nspr_pth_defs_h_ */ |