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comparison: nsprpub/pr/include/md/_nspr_pthread.h
nsprpub/pr/include/md/_nspr_pthread.h
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- TOR_BUG_9701
- changeset 11
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| -1:000000000000 | 0:7d70e3bba21c |
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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_pthread_defs_h___ | |
| 7 #define nspr_pthread_defs_h___ | |
| 8 | |
| 9 #include <pthread.h> | |
| 10 #include "prthread.h" | |
| 11 | |
| 12 #if defined(PTHREADS_USER) | |
| 13 /* | |
| 14 ** Thread Local Storage | |
| 15 */ | |
| 16 extern pthread_key_t current_thread_key; | |
| 17 extern pthread_key_t current_cpu_key; | |
| 18 extern pthread_key_t last_thread_key; | |
| 19 extern pthread_key_t intsoff_key; | |
| 20 | |
| 21 #define _MD_CURRENT_THREAD() \ | |
| 22 ((struct PRThread *) pthread_getspecific(current_thread_key)) | |
| 23 #define _MD_CURRENT_CPU() \ | |
| 24 ((struct _PRCPU *) pthread_getspecific(current_cpu_key)) | |
| 25 #define _MD_LAST_THREAD() \ | |
| 26 ((struct PRThread *) pthread_getspecific(last_thread_key)) | |
| 27 | |
| 28 #define _MD_SET_CURRENT_THREAD(newval) \ | |
| 29 pthread_setspecific(current_thread_key, (void *)newval) | |
| 30 | |
| 31 #define _MD_SET_CURRENT_CPU(newval) \ | |
| 32 pthread_setspecific(current_cpu_key, (void *)newval) | |
| 33 | |
| 34 #define _MD_SET_LAST_THREAD(newval) \ | |
| 35 pthread_setspecific(last_thread_key, (void *)newval) | |
| 36 | |
| 37 #define _MD_SET_INTSOFF(_val) | |
| 38 #define _MD_GET_INTSOFF() 1 | |
| 39 | |
| 40 /* | |
| 41 ** Initialize the thread context preparing it to execute _main. | |
| 42 */ | |
| 43 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \ | |
| 44 PR_BEGIN_MACRO \ | |
| 45 *status = PR_TRUE; \ | |
| 46 if (SAVE_CONTEXT(_thread)) { \ | |
| 47 (*_main)(); \ | |
| 48 } \ | |
| 49 _MD_SET_THR_SP(_thread, _sp); \ | |
| 50 _thread->no_sched = 0; \ | |
| 51 PR_END_MACRO | |
| 52 | |
| 53 #define _MD_SWITCH_CONTEXT(_thread) \ | |
| 54 PR_BEGIN_MACRO \ | |
| 55 PR_ASSERT(_thread->no_sched); \ | |
| 56 if (!SAVE_CONTEXT(_thread)) { \ | |
| 57 (_thread)->md.errcode = errno; \ | |
| 58 _MD_SET_LAST_THREAD(_thread); \ | |
| 59 _PR_Schedule(); \ | |
| 60 } else { \ | |
| 61 (_MD_LAST_THREAD())->no_sched = 0; \ | |
| 62 } \ | |
| 63 PR_END_MACRO | |
| 64 | |
| 65 /* | |
| 66 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT | |
| 67 */ | |
| 68 #define _MD_RESTORE_CONTEXT(_thread) \ | |
| 69 PR_BEGIN_MACRO \ | |
| 70 errno = (_thread)->md.errcode; \ | |
| 71 _MD_SET_CURRENT_THREAD(_thread); \ | |
| 72 _thread->no_sched = 1; \ | |
| 73 GOTO_CONTEXT(_thread); \ | |
| 74 PR_END_MACRO | |
| 75 | |
| 76 | |
| 77 /* Machine-dependent (MD) data structures */ | |
| 78 | |
| 79 struct _MDThread { | |
| 80 jmp_buf jb; | |
| 81 int id; | |
| 82 int errcode; | |
| 83 pthread_t pthread; | |
| 84 pthread_mutex_t pthread_mutex; | |
| 85 pthread_cond_t pthread_cond; | |
| 86 int wait; | |
| 87 }; | |
| 88 | |
| 89 struct _MDThreadStack { | |
| 90 PRInt8 notused; | |
| 91 }; | |
| 92 | |
| 93 struct _MDLock { | |
| 94 pthread_mutex_t mutex; | |
| 95 }; | |
| 96 | |
| 97 struct _MDSemaphore { | |
| 98 PRInt8 notused; | |
| 99 }; | |
| 100 | |
| 101 struct _MDCVar { | |
| 102 pthread_mutex_t mutex; | |
| 103 }; | |
| 104 | |
| 105 struct _MDSegment { | |
| 106 PRInt8 notused; | |
| 107 }; | |
| 108 | |
| 109 /* | |
| 110 * md-specific cpu structure field | |
| 111 */ | |
| 112 #define _PR_MD_MAX_OSFD FD_SETSIZE | |
| 113 | |
| 114 struct _MDCPU_Unix { | |
| 115 PRCList ioQ; | |
| 116 PRUint32 ioq_timeout; | |
| 117 PRInt32 ioq_max_osfd; | |
| 118 PRInt32 ioq_osfd_cnt; | |
| 119 #ifndef _PR_USE_POLL | |
| 120 fd_set fd_read_set, fd_write_set, fd_exception_set; | |
| 121 PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD], | |
| 122 fd_exception_cnt[_PR_MD_MAX_OSFD]; | |
| 123 #else | |
| 124 struct pollfd *ioq_pollfds; | |
| 125 int ioq_pollfds_size; | |
| 126 #endif /* _PR_USE_POLL */ | |
| 127 }; | |
| 128 | |
| 129 #define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ) | |
| 130 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu)) | |
| 131 #define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set) | |
| 132 #define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt) | |
| 133 #define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set) | |
| 134 #define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt) | |
| 135 #define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set) | |
| 136 #define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt) | |
| 137 #define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout) | |
| 138 #define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd) | |
| 139 #define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt) | |
| 140 #define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds) | |
| 141 #define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size) | |
| 142 | |
| 143 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32 | |
| 144 | |
| 145 struct _MDCPU { | |
| 146 jmp_buf jb; | |
| 147 pthread_t pthread; | |
| 148 struct _MDCPU_Unix md_unix; | |
| 149 }; | |
| 150 | |
| 151 /* | |
| 152 #define _MD_NEW_LOCK(lock) PR_SUCCESS | |
| 153 #define _MD_FREE_LOCK(lock) | |
| 154 #define _MD_LOCK(lock) | |
| 155 #define _MD_UNLOCK(lock) | |
| 156 */ | |
| 157 | |
| 158 extern pthread_mutex_t _pr_heapLock; | |
| 159 | |
| 160 #define _PR_LOCK(lock) pthread_mutex_lock(lock) | |
| 161 | |
| 162 #define _PR_UNLOCK(lock) pthread_mutex_unlock(lock) | |
| 163 | |
| 164 | |
| 165 #define _PR_LOCK_HEAP() { \ | |
| 166 if (_pr_primordialCPU) { \ | |
| 167 _PR_LOCK(_pr_heapLock); \ | |
| 168 } | |
| 169 | |
| 170 #define _PR_UNLOCK_HEAP() if (_pr_primordialCPU) { \ | |
| 171 _PR_UNLOCK(_pr_heapLock); \ | |
| 172 } \ | |
| 173 } | |
| 174 | |
| 175 NSPR_API(PRStatus) _MD_NEW_LOCK(struct _MDLock *md); | |
| 176 NSPR_API(void) _MD_FREE_LOCK(struct _MDLock *lockp); | |
| 177 | |
| 178 #define _MD_LOCK(_lockp) _PR_LOCK(&(_lockp)->mutex) | |
| 179 #define _MD_UNLOCK(_lockp) _PR_UNLOCK(&(_lockp)->mutex) | |
| 180 | |
| 181 #define _MD_INIT_IO() | |
| 182 #define _MD_IOQ_LOCK() | |
| 183 #define _MD_IOQ_UNLOCK() | |
| 184 #define _MD_CHECK_FOR_EXIT() | |
| 185 | |
| 186 NSPR_API(PRStatus) _MD_InitThread(struct PRThread *thread); | |
| 187 #define _MD_INIT_THREAD _MD_InitThread | |
| 188 #define _MD_INIT_ATTACHED_THREAD _MD_InitThread | |
| 189 | |
| 190 NSPR_API(void) _MD_ExitThread(struct PRThread *thread); | |
| 191 #define _MD_EXIT_THREAD _MD_ExitThread | |
| 192 | |
| 193 NSPR_API(void) _MD_SuspendThread(struct PRThread *thread); | |
| 194 #define _MD_SUSPEND_THREAD _MD_SuspendThread | |
| 195 | |
| 196 NSPR_API(void) _MD_ResumeThread(struct PRThread *thread); | |
| 197 #define _MD_RESUME_THREAD _MD_ResumeThread | |
| 198 | |
| 199 NSPR_API(void) _MD_SuspendCPU(struct _PRCPU *thread); | |
| 200 #define _MD_SUSPEND_CPU _MD_SuspendCPU | |
| 201 | |
| 202 NSPR_API(void) _MD_ResumeCPU(struct _PRCPU *thread); | |
| 203 #define _MD_RESUME_CPU _MD_ResumeCPU | |
| 204 | |
| 205 #define _MD_BEGIN_SUSPEND_ALL() | |
| 206 #define _MD_END_SUSPEND_ALL() | |
| 207 #define _MD_BEGIN_RESUME_ALL() | |
| 208 #define _MD_END_RESUME_ALL() | |
| 209 | |
| 210 NSPR_API(void) _MD_EarlyInit(void); | |
| 211 #define _MD_EARLY_INIT _MD_EarlyInit | |
| 212 | |
| 213 #define _MD_FINAL_INIT _PR_UnixInit | |
| 214 | |
| 215 NSPR_API(void) _MD_InitLocks(void); | |
| 216 #define _MD_INIT_LOCKS _MD_InitLocks | |
| 217 | |
| 218 NSPR_API(void) _MD_CleanThread(struct PRThread *thread); | |
| 219 #define _MD_CLEAN_THREAD _MD_CleanThread | |
| 220 | |
| 221 NSPR_API(PRStatus) _MD_CreateThread( | |
| 222 struct PRThread *thread, | |
| 223 void (*start) (void *), | |
| 224 PRThreadPriority priority, | |
| 225 PRThreadScope scope, | |
| 226 PRThreadState state, | |
| 227 PRUint32 stackSize); | |
| 228 #define _MD_CREATE_THREAD _MD_CreateThread | |
| 229 | |
| 230 extern void _MD_CleanupBeforeExit(void); | |
| 231 #define _MD_CLEANUP_BEFORE_EXIT _MD_CleanupBeforeExit | |
| 232 | |
| 233 NSPR_API(void) _MD_InitRunningCPU(struct _PRCPU *cpu); | |
| 234 #define _MD_INIT_RUNNING_CPU _MD_InitRunningCPU | |
| 235 | |
| 236 /* The _PR_MD_WAIT_LOCK and _PR_MD_WAKEUP_WAITER functions put to sleep and | |
| 237 * awaken a thread which is waiting on a lock or cvar. | |
| 238 */ | |
| 239 NSPR_API(PRStatus) _MD_wait(struct PRThread *, PRIntervalTime timeout); | |
| 240 #define _MD_WAIT _MD_wait | |
| 241 | |
| 242 NSPR_API(PRStatus) _MD_WakeupWaiter(struct PRThread *); | |
| 243 #define _MD_WAKEUP_WAITER _MD_WakeupWaiter | |
| 244 | |
| 245 NSPR_API(void) _MD_SetPriority(struct _MDThread *thread, | |
| 246 PRThreadPriority newPri); | |
| 247 #define _MD_SET_PRIORITY _MD_SetPriority | |
| 248 | |
| 249 #endif /* PTHREADS_USER */ | |
| 250 | |
| 251 #endif /* nspr_pthread_defs_h___ */ |
