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Side by Side Diff: mozilla/nsprpub/pr/include/private/primpl.h

Issue 14249009: Change the NSS and NSPR source tree to the new directory structure to be (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/nss/
Patch Set: Created 7 years, 8 months ago
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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 primpl_h___
7 #define primpl_h___
8
9 /*
10 * HP-UX 10.10's pthread.h (DCE threads) includes dce/cma.h, which
11 * has:
12 * #define sigaction _sigaction_sys
13 * This macro causes chaos if signal.h gets included before pthread.h.
14 * To be safe, we include pthread.h first.
15 */
16
17 #if defined(_PR_PTHREADS)
18 #include <pthread.h>
19 #endif
20
21 #if defined(_PR_BTHREADS)
22 #include <kernel/OS.h>
23 #endif
24
25 #ifdef WIN32
26 /*
27 * Allow use of functions and symbols first defined in Win2k.
28 */
29 #if !defined(WINVER) || (WINVER < 0x0500)
30 #undef WINVER
31 #define WINVER 0x0500
32 #endif
33 #if !defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0500)
34 #undef _WIN32_WINNT
35 #define _WIN32_WINNT 0x0500
36 #endif
37 #endif /* WIN32 */
38
39 #include "nspr.h"
40 #include "prpriv.h"
41
42 typedef struct PRSegment PRSegment;
43
44 #include "md/prosdep.h"
45 #include "obsolete/probslet.h"
46
47 #ifdef _PR_HAVE_POSIX_SEMAPHORES
48 #include <semaphore.h>
49 #elif defined(_PR_HAVE_SYSV_SEMAPHORES)
50 #include <sys/sem.h>
51 #endif
52
53 /*************************************************************************
54 ***** A Word about Model Dependent Function Naming Convention ***********
55 *************************************************************************/
56
57 /*
58 NSPR 2.0 must implement its function across a range of platforms
59 including: MAC, Windows/16, Windows/95, Windows/NT, and several
60 variants of Unix. Each implementation shares common code as well
61 as having platform dependent portions. This standard describes how
62 the model dependent portions are to be implemented.
63
64 In header file pr/include/primpl.h, each publicly declared
65 platform dependent function is declared as:
66
67 NSPR_API void _PR_MD_FUNCTION( long arg1, long arg2 );
68 #define _PR_MD_FUNCTION _MD_FUNCTION
69
70 In header file pr/include/md/<platform>/_<platform>.h,
71 each #define'd macro is redefined as one of:
72
73 #define _MD_FUNCTION <blanks>
74 #define _MD_FUNCTION <expanded macro>
75 #define _MD_FUNCTION <osFunction>
76 #define _MD_FUNCTION <_MD_Function>
77
78 Where:
79
80 <blanks> is no definition at all. In this case, the function is not implemented
81 and is never called for this platform.
82 For example:
83 #define _MD_INIT_CPUS()
84
85 <expanded macro> is a C language macro expansion.
86 For example:
87 #define _MD_CLEAN_THREAD(_thread) \
88 PR_BEGIN_MACRO \
89 PR_DestroyCondVar(_thread->md.asyncIOCVar); \
90 PR_DestroyLock(_thread->md.asyncIOLock); \
91 PR_END_MACRO
92
93 <osFunction> is some function implemented by the host operating system.
94 For example:
95 #define _MD_EXIT exit
96
97 <_MD_function> is the name of a function implemented for this platform in
98 pr/src/md/<platform>/<soruce>.c file.
99 For example:
100 #define _MD_GETFILEINFO _MD_GetFileInfo
101
102 In <source>.c, the implementation is:
103 PR_IMPLEMENT(PRInt32) _MD_GetFileInfo(const char *fn, PRFileInfo *info);
104 */
105
106 PR_BEGIN_EXTERN_C
107
108 typedef struct _MDLock _MDLock;
109 typedef struct _MDCVar _MDCVar;
110 typedef struct _MDSegment _MDSegment;
111 typedef struct _MDThread _MDThread;
112 typedef struct _MDThreadStack _MDThreadStack;
113 typedef struct _MDSemaphore _MDSemaphore;
114 typedef struct _MDDir _MDDir;
115 #ifdef MOZ_UNICODE
116 typedef struct _MDDirUTF16 _MDDirUTF16;
117 #endif /* MOZ_UNICODE */
118 typedef struct _MDFileDesc _MDFileDesc;
119 typedef struct _MDProcess _MDProcess;
120 typedef struct _MDFileMap _MDFileMap;
121
122 #if defined(_PR_PTHREADS)
123
124 /*
125 ** The following definitions are unique to implementing NSPR using pthreads.
126 ** Since pthreads defines most of the thread and thread synchronization
127 ** stuff, this is a pretty small set.
128 */
129
130 #define PT_CV_NOTIFIED_LENGTH 6
131 typedef struct _PT_Notified _PT_Notified;
132 struct _PT_Notified
133 {
134 PRIntn length; /* # of used entries in this structure */
135 struct
136 {
137 PRCondVar *cv; /* the condition variable notified */
138 PRIntn times; /* and the number of times notified */
139 } cv[PT_CV_NOTIFIED_LENGTH];
140 _PT_Notified *link; /* link to another of these | NULL */
141 };
142
143 /*
144 * bits defined for pthreads 'state' field
145 */
146 #define PT_THREAD_DETACHED 0x01 /* thread can't be joined */
147 #define PT_THREAD_GLOBAL 0x02 /* a global thread (unlikely) */
148 #define PT_THREAD_SYSTEM 0x04 /* system (not user) thread */
149 #define PT_THREAD_PRIMORD 0x08 /* this is the primordial thread */
150 #define PT_THREAD_ABORTED 0x10 /* thread has been interrupted */
151 #define PT_THREAD_GCABLE 0x20 /* thread is garbage collectible */
152 #define PT_THREAD_SUSPENDED 0x40 /* thread has been suspended */
153 #define PT_THREAD_FOREIGN 0x80 /* thread is not one of ours */
154 #define PT_THREAD_BOUND 0x100 /* a bound-global thread */
155
156 #define _PT_THREAD_INTERRUPTED(thr) \
157 (!(thr->interrupt_blocked) && (thr->state & PT_THREAD_ABORTED))
158 #define _PT_THREAD_BLOCK_INTERRUPT(thr) \
159 (thr->interrupt_blocked = 1)
160 #define _PT_THREAD_UNBLOCK_INTERRUPT(thr) \
161 (thr->interrupt_blocked = 0)
162
163 #define _PT_IS_GCABLE_THREAD(thr) ((thr)->state & PT_THREAD_GCABLE)
164
165 /*
166 ** Possible values for thread's suspend field
167 ** Note that the first two can be the same as they are really mutually exclusive ,
168 ** i.e. both cannot be happening at the same time. We have two symbolic names
169 ** just as a mnemonic.
170 **/
171 #define PT_THREAD_RESUMED 0x80 /* thread has been resumed */
172 #define PT_THREAD_SETGCABLE 0x100 /* set the GCAble flag */
173
174 #if defined(DEBUG)
175
176 typedef struct PTDebug
177 {
178 PRTime timeStarted;
179 PRUintn locks_created, locks_destroyed;
180 PRUintn locks_acquired, locks_released;
181 PRUintn cvars_created, cvars_destroyed;
182 PRUintn cvars_notified, delayed_cv_deletes;
183 } PTDebug;
184
185 #endif /* defined(DEBUG) */
186
187 NSPR_API(void) PT_FPrintStats(PRFileDesc *fd, const char *msg);
188
189 #else /* defined(_PR_PTHREADS) */
190
191 NSPR_API(void) PT_FPrintStats(PRFileDesc *fd, const char *msg);
192
193 /*
194 ** This section is contains those parts needed to implement NSPR on
195 ** platforms in general. One would assume that the pthreads implementation
196 ** included lots of the same types, at least conceptually.
197 */
198
199 /*
200 * Local threads only. No multiple CPU support and hence all the
201 * following routines are no-op.
202 */
203 #ifdef _PR_LOCAL_THREADS_ONLY
204
205 #define _PR_MD_SUSPEND_THREAD(thread)
206 #define _PR_MD_RESUME_THREAD(thread)
207 #define _PR_MD_SUSPEND_CPU(cpu)
208 #define _PR_MD_RESUME_CPU(cpu)
209 #define _PR_MD_BEGIN_SUSPEND_ALL()
210 #define _PR_MD_END_SUSPEND_ALL()
211 #define _PR_MD_BEGIN_RESUME_ALL()
212 #define _PR_MD_END_RESUME_ALL()
213 #define _PR_MD_INIT_ATTACHED_THREAD(thread) PR_FAILURE
214
215 #endif
216
217 typedef struct _PRCPUQueue _PRCPUQueue;
218 typedef struct _PRCPU _PRCPU;
219 typedef struct _MDCPU _MDCPU;
220
221 struct _PRCPUQueue {
222 _MDLock runQLock; /* lock for the run + wait queues */
223 _MDLock sleepQLock; /* lock for the run + wait queues */
224 _MDLock miscQLock; /* lock for the run + wait queues */
225
226 PRCList runQ[PR_PRIORITY_LAST + 1]; /* run queue for this CPU */
227 PRUint32 runQReadyMask;
228 PRCList sleepQ;
229 PRIntervalTime sleepQmax;
230 PRCList pauseQ;
231 PRCList suspendQ;
232 PRCList waitingToJoinQ;
233
234 PRUintn numCPUs; /* number of CPUs using this Q */
235 };
236
237 struct _PRCPU {
238 PRCList links; /* link list of CPUs */
239 PRUint32 id; /* id for this CPU */
240
241 union {
242 PRInt32 bits;
243 PRUint8 missed[4];
244 } u;
245 PRIntn where; /* index into u.missed */
246 PRPackedBool paused; /* cpu is paused */
247 PRPackedBool exit; /* cpu should exit */
248
249 PRThread *thread; /* native thread for this CPUThread */
250 PRThread *idle_thread; /* user-level idle thread for this CPUThread */
251
252 PRIntervalTime last_clock; /* the last time we went into
253 * _PR_ClockInterrupt() on this CPU
254 */
255
256 _PRCPUQueue *queue;
257
258 _MDCPU md;
259 };
260
261 typedef struct _PRInterruptTable {
262 const char *name;
263 PRUintn missed_bit;
264 void (*handler)(void);
265 } _PRInterruptTable;
266
267 #define _PR_CPU_PTR(_qp) \
268 ((_PRCPU*) ((char*) (_qp) - offsetof(_PRCPU,links)))
269
270 #if !defined(IRIX) && !defined(WIN32) && !defined(XP_OS2) \
271 && !(defined(SOLARIS) && defined(_PR_GLOBAL_THREADS_ONLY))
272 #define _MD_GET_ATTACHED_THREAD() (_PR_MD_CURRENT_THREAD())
273 #endif
274
275 #ifdef _PR_LOCAL_THREADS_ONLY
276
277 NSPR_API(struct _PRCPU *) _pr_currentCPU;
278 NSPR_API(PRThread *) _pr_currentThread;
279 NSPR_API(PRThread *) _pr_lastThread;
280 NSPR_API(PRInt32) _pr_intsOff;
281
282 #define _MD_CURRENT_CPU() (_pr_currentCPU)
283 #define _MD_SET_CURRENT_CPU(_cpu) (_pr_currentCPU = (_cpu))
284 #define _MD_CURRENT_THREAD() (_pr_currentThread)
285 #define _MD_SET_CURRENT_THREAD(_thread) (_pr_currentThread = (_thread))
286 #define _MD_LAST_THREAD() (_pr_lastThread)
287 #define _MD_SET_LAST_THREAD(t) (_pr_lastThread = t)
288
289 #define _MD_GET_INTSOFF() (_pr_intsOff)
290 #define _MD_SET_INTSOFF(_val) (_pr_intsOff = _val)
291
292
293 /* The unbalanced curly braces in these two macros are intentional */
294 #define _PR_LOCK_HEAP() { PRIntn _is; if (_pr_currentCPU) _PR_INTSOFF(_is);
295 #define _PR_UNLOCK_HEAP() if (_pr_currentCPU) _PR_INTSON(_is); }
296
297 #endif /* _PR_LOCAL_THREADS_ONLY */
298
299 extern PRInt32 _native_threads_only;
300
301 #if defined(_PR_GLOBAL_THREADS_ONLY)
302
303 #define _MD_GET_INTSOFF() 0
304 #define _MD_SET_INTSOFF(_val)
305 #define _PR_INTSOFF(_is)
306 #define _PR_FAST_INTSON(_is)
307 #define _PR_INTSON(_is)
308 #define _PR_THREAD_LOCK(_thread)
309 #define _PR_THREAD_UNLOCK(_thread)
310 #define _PR_RUNQ_LOCK(cpu)
311 #define _PR_RUNQ_UNLOCK(cpu)
312 #define _PR_SLEEPQ_LOCK(thread)
313 #define _PR_SLEEPQ_UNLOCK(thread)
314 #define _PR_MISCQ_LOCK(thread)
315 #define _PR_MISCQ_UNLOCK(thread)
316 #define _PR_CPU_LIST_LOCK()
317 #define _PR_CPU_LIST_UNLOCK()
318
319 #define _PR_ADD_RUNQ(_thread, _cpu, _pri)
320 #define _PR_DEL_RUNQ(_thread)
321 #define _PR_ADD_SLEEPQ(_thread, _timeout)
322 #define _PR_DEL_SLEEPQ(_thread, _propogate)
323 #define _PR_ADD_JOINQ(_thread, _cpu)
324 #define _PR_DEL_JOINQ(_thread)
325 #define _PR_ADD_SUSPENDQ(_thread, _cpu)
326 #define _PR_DEL_SUSPENDQ(_thread)
327
328 #define _PR_THREAD_SWITCH_CPU(_thread, _newCPU)
329
330 #define _PR_IS_NATIVE_THREAD(thread) 1
331 #define _PR_IS_NATIVE_THREAD_SUPPORTED() 1
332
333 #else
334
335 #define _PR_INTSOFF(_is) \
336 PR_BEGIN_MACRO \
337 (_is) = _PR_MD_GET_INTSOFF(); \
338 _PR_MD_SET_INTSOFF(1); \
339 PR_END_MACRO
340
341 #define _PR_FAST_INTSON(_is) \
342 PR_BEGIN_MACRO \
343 _PR_MD_SET_INTSOFF(_is); \
344 PR_END_MACRO
345
346 #define _PR_INTSON(_is) \
347 PR_BEGIN_MACRO \
348 if ((_is == 0) && (_PR_MD_CURRENT_CPU())->u.bits) \
349 _PR_IntsOn((_PR_MD_CURRENT_CPU())); \
350 _PR_MD_SET_INTSOFF(_is); \
351 PR_END_MACRO
352
353 #ifdef _PR_LOCAL_THREADS_ONLY
354
355 #define _PR_IS_NATIVE_THREAD(thread) 0
356 #define _PR_THREAD_LOCK(_thread)
357 #define _PR_THREAD_UNLOCK(_thread)
358 #define _PR_RUNQ_LOCK(cpu)
359 #define _PR_RUNQ_UNLOCK(cpu)
360 #define _PR_SLEEPQ_LOCK(thread)
361 #define _PR_SLEEPQ_UNLOCK(thread)
362 #define _PR_MISCQ_LOCK(thread)
363 #define _PR_MISCQ_UNLOCK(thread)
364 #define _PR_CPU_LIST_LOCK()
365 #define _PR_CPU_LIST_UNLOCK()
366
367 #define _PR_ADD_RUNQ(_thread, _cpu, _pri) \
368 PR_BEGIN_MACRO \
369 PR_APPEND_LINK(&(_thread)->links, &_PR_RUNQ(_cpu)[_pri]); \
370 _PR_RUNQREADYMASK(_cpu) |= (1L << _pri); \
371 PR_END_MACRO
372
373 #define _PR_DEL_RUNQ(_thread) \
374 PR_BEGIN_MACRO \
375 _PRCPU *_cpu = _thread->cpu; \
376 PRInt32 _pri = _thread->priority; \
377 PR_REMOVE_LINK(&(_thread)->links); \
378 if (PR_CLIST_IS_EMPTY(&_PR_RUNQ(_cpu)[_pri])) \
379 _PR_RUNQREADYMASK(_cpu) &= ~(1L << _pri); \
380 PR_END_MACRO
381
382 #define _PR_ADD_SLEEPQ(_thread, _timeout) \
383 _PR_AddSleepQ(_thread, _timeout);
384
385 #define _PR_DEL_SLEEPQ(_thread, _propogate) \
386 _PR_DelSleepQ(_thread, _propogate);
387
388 #define _PR_ADD_JOINQ(_thread, _cpu) \
389 PR_APPEND_LINK(&(_thread)->links, &_PR_WAITINGTOJOINQ(_cpu));
390
391 #define _PR_DEL_JOINQ(_thread) \
392 PR_REMOVE_LINK(&(_thread)->links);
393
394 #define _PR_ADD_SUSPENDQ(_thread, _cpu) \
395 PR_APPEND_LINK(&(_thread)->links, &_PR_SUSPENDQ(_cpu));
396
397 #define _PR_DEL_SUSPENDQ(_thread) \
398 PR_REMOVE_LINK(&(_thread)->links);
399
400 #define _PR_THREAD_SWITCH_CPU(_thread, _newCPU)
401
402 #define _PR_IS_NATIVE_THREAD_SUPPORTED() 0
403
404 #else /* _PR_LOCAL_THREADS_ONLY */
405
406 /* These are for the "combined" thread model */
407
408 #define _PR_THREAD_LOCK(_thread) \
409 _PR_MD_LOCK(&(_thread)->threadLock);
410
411 #define _PR_THREAD_UNLOCK(_thread) \
412 _PR_MD_UNLOCK(&(_thread)->threadLock);
413
414 #define _PR_RUNQ_LOCK(_cpu) \
415 PR_BEGIN_MACRO \
416 _PR_MD_LOCK(&(_cpu)->queue->runQLock );\
417 PR_END_MACRO
418
419 #define _PR_RUNQ_UNLOCK(_cpu) \
420 PR_BEGIN_MACRO \
421 _PR_MD_UNLOCK(&(_cpu)->queue->runQLock );\
422 PR_END_MACRO
423
424 #define _PR_SLEEPQ_LOCK(_cpu) \
425 _PR_MD_LOCK(&(_cpu)->queue->sleepQLock );
426
427 #define _PR_SLEEPQ_UNLOCK(_cpu) \
428 _PR_MD_UNLOCK(&(_cpu)->queue->sleepQLock );
429
430 #define _PR_MISCQ_LOCK(_cpu) \
431 _PR_MD_LOCK(&(_cpu)->queue->miscQLock );
432
433 #define _PR_MISCQ_UNLOCK(_cpu) \
434 _PR_MD_UNLOCK(&(_cpu)->queue->miscQLock );
435
436 #define _PR_CPU_LIST_LOCK() _PR_MD_LOCK(&_pr_cpuLock)
437 #define _PR_CPU_LIST_UNLOCK() _PR_MD_UNLOCK(&_pr_cpuLock)
438
439 #define QUEUE_RUN 0x1
440 #define QUEUE_SLEEP 0x2
441 #define QUEUE_JOIN 0x4
442 #define QUEUE_SUSPEND 0x8
443 #define QUEUE_LOCK 0x10
444
445 #define _PR_ADD_RUNQ(_thread, _cpu, _pri) \
446 PR_BEGIN_MACRO \
447 PR_APPEND_LINK(&(_thread)->links, &_PR_RUNQ(_cpu)[_pri]); \
448 _PR_RUNQREADYMASK(_cpu) |= (1L << _pri); \
449 PR_ASSERT((_thread)->queueCount == 0); \
450 (_thread)->queueCount = QUEUE_RUN; \
451 PR_END_MACRO
452
453 #define _PR_DEL_RUNQ(_thread) \
454 PR_BEGIN_MACRO \
455 _PRCPU *_cpu = _thread->cpu; \
456 PRInt32 _pri = _thread->priority; \
457 PR_REMOVE_LINK(&(_thread)->links); \
458 if (PR_CLIST_IS_EMPTY(&_PR_RUNQ(_cpu)[_pri])) \
459 _PR_RUNQREADYMASK(_cpu) &= ~(1L << _pri); \
460 PR_ASSERT((_thread)->queueCount == QUEUE_RUN);\
461 (_thread)->queueCount = 0; \
462 PR_END_MACRO
463
464 #define _PR_ADD_SLEEPQ(_thread, _timeout) \
465 PR_ASSERT((_thread)->queueCount == 0); \
466 (_thread)->queueCount = QUEUE_SLEEP; \
467 _PR_AddSleepQ(_thread, _timeout);
468
469 #define _PR_DEL_SLEEPQ(_thread, _propogate) \
470 PR_ASSERT((_thread)->queueCount == QUEUE_SLEEP);\
471 (_thread)->queueCount = 0; \
472 _PR_DelSleepQ(_thread, _propogate);
473
474 #define _PR_ADD_JOINQ(_thread, _cpu) \
475 PR_ASSERT((_thread)->queueCount == 0); \
476 (_thread)->queueCount = QUEUE_JOIN; \
477 PR_APPEND_LINK(&(_thread)->links, &_PR_WAITINGTOJOINQ(_cpu));
478
479 #define _PR_DEL_JOINQ(_thread) \
480 PR_ASSERT((_thread)->queueCount == QUEUE_JOIN);\
481 (_thread)->queueCount = 0; \
482 PR_REMOVE_LINK(&(_thread)->links);
483
484 #define _PR_ADD_SUSPENDQ(_thread, _cpu) \
485 PR_ASSERT((_thread)->queueCount == 0); \
486 (_thread)->queueCount = QUEUE_SUSPEND; \
487 PR_APPEND_LINK(&(_thread)->links, &_PR_SUSPENDQ(_cpu));
488
489 #define _PR_DEL_SUSPENDQ(_thread) \
490 PR_ASSERT((_thread)->queueCount == QUEUE_SUSPEND);\
491 (_thread)->queueCount = 0; \
492 PR_REMOVE_LINK(&(_thread)->links);
493
494 #define _PR_THREAD_SWITCH_CPU(_thread, _newCPU) \
495 (_thread)->cpu = (_newCPU);
496
497 #define _PR_IS_NATIVE_THREAD(thread) (thread->flags & _PR_GLOBAL_SCOPE)
498 #define _PR_IS_NATIVE_THREAD_SUPPORTED() 1
499
500 #endif /* _PR_LOCAL_THREADS_ONLY */
501
502 #endif /* _PR_GLOBAL_THREADS_ONLY */
503
504 #define _PR_SET_RESCHED_FLAG() _PR_MD_CURRENT_CPU()->u.missed[3] = 1
505 #define _PR_CLEAR_RESCHED_FLAG() _PR_MD_CURRENT_CPU()->u.missed[3] = 0
506
507 extern _PRInterruptTable _pr_interruptTable[];
508
509 /* Bits for _pr_interruptState.u.missed[0,1] */
510 #define _PR_MISSED_CLOCK 0x1
511 #define _PR_MISSED_IO 0x2
512 #define _PR_MISSED_CHILD 0x4
513
514 extern void _PR_IntsOn(_PRCPU *cpu);
515
516 NSPR_API(void) _PR_WakeupCPU(void);
517 NSPR_API(void) _PR_PauseCPU(void);
518
519 /************************************************************************/
520
521 #define _PR_LOCK_LOCK(_lock) \
522 _PR_MD_LOCK(&(_lock)->ilock);
523 #define _PR_LOCK_UNLOCK(_lock) \
524 _PR_MD_UNLOCK(&(_lock)->ilock);
525
526 extern void _PR_UnblockLockWaiter(PRLock *lock);
527
528 #define _PR_LOCK_PTR(_qp) \
529 ((PRLock*) ((char*) (_qp) - offsetof(PRLock,links)))
530
531 /************************************************************************/
532
533 #define _PR_CVAR_LOCK(_cvar) \
534 _PR_MD_LOCK(&(_cvar)->ilock);
535 #define _PR_CVAR_UNLOCK(_cvar) \
536 _PR_MD_UNLOCK(&(_cvar)->ilock);
537
538 extern PRStatus _PR_WaitCondVar(
539 PRThread *thread, PRCondVar *cvar, PRLock *lock, PRIntervalTime timeout);
540 extern PRUint32 _PR_CondVarToString(PRCondVar *cvar, char *buf, PRUint32 buflen) ;
541
542 NSPR_API(void) _PR_Notify(PRMonitor *mon, PRBool all, PRBool sticky);
543
544 /* PRThread.flags */
545 #define _PR_SYSTEM 0x01
546 #define _PR_INTERRUPT 0x02
547 #define _PR_ATTACHED 0x04 /* created via PR_AttachThread */
548 #define _PR_PRIMORDIAL 0x08 /* the thread that called PR_Init */
549 #define _PR_ON_SLEEPQ 0x10 /* thread is on the sleepQ */
550 #define _PR_ON_PAUSEQ 0x20 /* thread is on the pauseQ */
551 #define _PR_SUSPENDING 0x40 /* thread wants to suspend */
552 #define _PR_GLOBAL_SCOPE 0x80 /* thread is global scope */
553 #define _PR_IDLE_THREAD 0x200 /* this is an idle thread */
554 #define _PR_GCABLE_THREAD 0x400 /* this is a collectable thread */
555 #define _PR_BOUND_THREAD 0x800 /* a bound thread */
556 #define _PR_INTERRUPT_BLOCKED 0x1000 /* interrupts blocked */
557
558 /* PRThread.state */
559 #define _PR_UNBORN 0
560 #define _PR_RUNNABLE 1
561 #define _PR_RUNNING 2
562 #define _PR_LOCK_WAIT 3
563 #define _PR_COND_WAIT 4
564 #define _PR_JOIN_WAIT 5
565 #define _PR_IO_WAIT 6
566 #define _PR_SUSPENDED 7
567 #define _PR_DEAD_STATE 8 /* for debugging */
568
569 /* PRThreadStack.flags */
570 #define _PR_STACK_VM 0x1 /* using vm instead of malloc */
571 #define _PR_STACK_MAPPED 0x2 /* vm is mapped */
572 #define _PR_STACK_PRIMORDIAL 0x4 /* stack for primordial thread */
573
574 /*
575 ** If the default stcksize from the client is zero, we need to pick a machine
576 ** dependent value. This is only for standard user threads. For custom threads ,
577 ** 0 has a special meaning.
578 ** Adjust stackSize. Round up to a page boundary.
579 */
580
581 #ifndef _MD_MINIMUM_STACK_SIZE
582 #define _MD_MINIMUM_STACK_SIZE 0
583 #endif
584
585 #if (!defined(HAVE_CUSTOM_USER_THREADS))
586 #define _PR_ADJUST_STACKSIZE(stackSize) \
587 PR_BEGIN_MACRO \
588 if (stackSize == 0) \
589 stackSize = _MD_DEFAULT_STACK_SIZE; \
590 if (stackSize < _MD_MINIMUM_STACK_SIZE) \
591 stackSize = _MD_MINIMUM_STACK_SIZE; \
592 stackSize = (stackSize + (1 << _pr_pageShift) - 1) >> _pr_pageShift; \
593 stackSize <<= _pr_pageShift; \
594 PR_END_MACRO
595 #else
596 #define _PR_ADJUST_STACKSIZE(stackSize)
597 #endif
598
599 #define _PR_IS_GCABLE_THREAD(thr) ((thr)->flags & _PR_GCABLE_THREAD)
600
601 #define _PR_PENDING_INTERRUPT(thr) \
602 (!((thr)->flags & _PR_INTERRUPT_BLOCKED) && ((thr)->flags & _PR_ INTERRUPT))
603 #define _PR_THREAD_BLOCK_INTERRUPT(thr) \
604 (thr->flags |= _PR_INTERRUPT_BLOCKED)
605 #define _PR_THREAD_UNBLOCK_INTERRUPT(thr) \
606 (thr->flags &= ~_PR_INTERRUPT_BLOCKED)
607
608 #define _PR_THREAD_PTR(_qp) \
609 ((PRThread*) ((char*) (_qp) - offsetof(PRThread,links)))
610
611 #define _PR_ACTIVE_THREAD_PTR(_qp) \
612 ((PRThread*) ((char*) (_qp) - offsetof(PRThread,active)))
613
614 #define _PR_THREAD_CONDQ_PTR(_qp) \
615 ((PRThread*) ((char*) (_qp) - offsetof(PRThread,waitQLinks)))
616
617 #define _PR_THREAD_MD_TO_PTR(_md) \
618 ((PRThread*) ((char*) (_md) - offsetof(PRThread,md)))
619
620 #define _PR_THREAD_STACK_TO_PTR(_stack) \
621 ((PRThread*) (_stack->thr))
622
623 extern PRCList _pr_active_local_threadQ;
624 extern PRCList _pr_active_global_threadQ;
625 extern PRCList _pr_cpuQ;
626 extern _MDLock _pr_cpuLock;
627 extern PRInt32 _pr_md_idle_cpus;
628
629 #define _PR_ACTIVE_LOCAL_THREADQ() _pr_active_local_threadQ
630 #define _PR_ACTIVE_GLOBAL_THREADQ() _pr_active_global_threadQ
631 #define _PR_CPUQ() _pr_cpuQ
632 #define _PR_RUNQ(_cpu) ((_cpu)->queue->runQ)
633 #define _PR_RUNQREADYMASK(_cpu) ((_cpu)->queue->runQReadyMask)
634 #define _PR_SLEEPQ(_cpu) ((_cpu)->queue->sleepQ)
635 #define _PR_SLEEPQMAX(_cpu) ((_cpu)->queue->sleepQmax)
636 #define _PR_PAUSEQ(_cpu) ((_cpu)->queue->pauseQ)
637 #define _PR_SUSPENDQ(_cpu) ((_cpu)->queue->suspendQ)
638 #define _PR_WAITINGTOJOINQ(_cpu) ((_cpu)->queue->waitingToJoinQ)
639
640 extern PRUint32 _pr_recycleThreads; /* Flag for behavior on thread cleanup */
641 extern PRLock *_pr_deadQLock;
642 extern PRUint32 _pr_numNativeDead;
643 extern PRUint32 _pr_numUserDead;
644 extern PRCList _pr_deadNativeQ;
645 extern PRCList _pr_deadUserQ;
646 #define _PR_DEADNATIVEQ _pr_deadNativeQ
647 #define _PR_DEADUSERQ _pr_deadUserQ
648 #define _PR_DEADQ_LOCK PR_Lock(_pr_deadQLock);
649 #define _PR_DEADQ_UNLOCK PR_Unlock(_pr_deadQLock);
650 #define _PR_INC_DEADNATIVE (_pr_numNativeDead++)
651 #define _PR_DEC_DEADNATIVE (_pr_numNativeDead--)
652 #define _PR_NUM_DEADNATIVE (_pr_numNativeDead)
653 #define _PR_INC_DEADUSER (_pr_numUserDead++)
654 #define _PR_DEC_DEADUSER (_pr_numUserDead--)
655 #define _PR_NUM_DEADUSER (_pr_numUserDead)
656
657 extern PRUint32 _pr_utid;
658
659 extern struct _PRCPU *_pr_primordialCPU;
660
661 extern PRLock *_pr_activeLock; /* lock for userActive and systemActive */
662 extern PRInt32 _pr_userActive; /* number of active user threads */
663 extern PRInt32 _pr_systemActive; /* number of active system threads */
664 extern PRInt32 _pr_primordialExitCount; /* number of user threads left
665 * before the primordial thread
666 * can exit. */
667 extern PRCondVar *_pr_primordialExitCVar; /* the condition variable for
668 * notifying the primordial thread
669 * when all other user threads
670 * have terminated. */
671
672 extern PRUintn _pr_maxPTDs;
673
674 extern PRLock *_pr_terminationCVLock;
675
676 /*************************************************************************
677 * Internal routines either called by PR itself or from machine-dependent *
678 * code. *
679 *************************************************************************/
680
681 extern void _PR_ClockInterrupt(void);
682
683 extern void _PR_Schedule(void);
684 extern void _PR_SetThreadPriority(
685 PRThread* thread, PRThreadPriority priority);
686
687 /***********************************************************************
688 ** FUNCTION: _PR_NewSegment()
689 ** DESCRIPTION:
690 ** Allocate a memory segment. The "size" value is rounded up to the
691 ** native system page size and a page aligned portion of memory is
692 ** returned. This memory is not part of the malloc heap. If "vaddr" is
693 ** not NULL then PR tries to allocate the segment at the desired virtual
694 ** address.
695 ** INPUTS: size: size of the desired memory segment
696 ** vaddr: address at which the newly aquired segment is to be
697 ** mapped into memory.
698 ** OUTPUTS: a memory segment is allocated, a PRSegment is allocated
699 ** RETURN: pointer to PRSegment
700 ***********************************************************************/
701 extern PRSegment* _PR_NewSegment(PRUint32 size, void *vaddr);
702
703 /***********************************************************************
704 ** FUNCTION: _PR_DestroySegment()
705 ** DESCRIPTION:
706 ** The memory segment and the PRSegment are freed
707 ** INPUTS: seg: pointer to PRSegment to be freed
708 ** OUTPUTS: the the PRSegment and its associated memory segment are freed
709 ** RETURN: void
710 ***********************************************************************/
711 extern void _PR_DestroySegment(PRSegment *seg);
712
713 extern PRThreadStack * _PR_NewStack(PRUint32 stackSize);
714 extern void _PR_FreeStack(PRThreadStack *stack);
715 extern PRBool _PR_NotifyThread (PRThread *thread, PRThread *me);
716 extern void _PR_NotifyLockedThread (PRThread *thread);
717
718 NSPR_API(void) _PR_AddSleepQ(PRThread *thread, PRIntervalTime timeout);
719 NSPR_API(void) _PR_DelSleepQ(PRThread *thread, PRBool propogate_time);
720
721 extern void _PR_AddThreadToRunQ(PRThread *me, PRThread *thread);
722
723 NSPR_API(PRThread*) _PR_CreateThread(PRThreadType type,
724 void (*start)(void *arg),
725 void *arg,
726 PRThreadPriority priority,
727 PRThreadScope scope,
728 PRThreadState state,
729 PRUint32 stackSize,
730 PRUint32 flags);
731
732 extern void _PR_NativeDestroyThread(PRThread *thread);
733 extern void _PR_UserDestroyThread(PRThread *thread);
734
735 extern PRThread* _PRI_AttachThread(
736 PRThreadType type, PRThreadPriority priority,
737 PRThreadStack *stack, PRUint32 flags);
738
739 extern void _PRI_DetachThread(void);
740
741
742 #define _PR_IO_PENDING(_thread) ((_thread)->io_pending)
743
744 NSPR_API(void) _PR_MD_INIT_CPUS();
745 #define _PR_MD_INIT_CPUS _MD_INIT_CPUS
746
747 NSPR_API(void) _PR_MD_WAKEUP_CPUS();
748 #define _PR_MD_WAKEUP_CPUS _MD_WAKEUP_CPUS
749
750 /* Interrupts related */
751
752 NSPR_API(void) _PR_MD_START_INTERRUPTS(void);
753 #define _PR_MD_START_INTERRUPTS _MD_START_INTERRUPTS
754
755 NSPR_API(void) _PR_MD_STOP_INTERRUPTS(void);
756 #define _PR_MD_STOP_INTERRUPTS _MD_STOP_INTERRUPTS
757
758 NSPR_API(void) _PR_MD_ENABLE_CLOCK_INTERRUPTS(void);
759 #define _PR_MD_ENABLE_CLOCK_INTERRUPTS _MD_ENABLE_CLOCK_INTERRUPTS
760
761 NSPR_API(void) _PR_MD_DISABLE_CLOCK_INTERRUPTS(void);
762 #define _PR_MD_DISABLE_CLOCK_INTERRUPTS _MD_DISABLE_CLOCK_INTERRUPTS
763
764 NSPR_API(void) _PR_MD_BLOCK_CLOCK_INTERRUPTS(void);
765 #define _PR_MD_BLOCK_CLOCK_INTERRUPTS _MD_BLOCK_CLOCK_INTERRUPTS
766
767 NSPR_API(void) _PR_MD_UNBLOCK_CLOCK_INTERRUPTS(void);
768 #define _PR_MD_UNBLOCK_CLOCK_INTERRUPTS _MD_UNBLOCK_CLOCK_INTERRUPTS
769
770 /* The _PR_MD_WAIT_LOCK and _PR_MD_WAKEUP_WAITER functions put to sleep and
771 * awaken a thread which is waiting on a lock or cvar.
772 */
773 extern PRStatus _PR_MD_WAIT(PRThread *, PRIntervalTime timeout);
774 #define _PR_MD_WAIT _MD_WAIT
775
776 extern PRStatus _PR_MD_WAKEUP_WAITER(PRThread *);
777 #define _PR_MD_WAKEUP_WAITER _MD_WAKEUP_WAITER
778
779 #ifndef _PR_LOCAL_THREADS_ONLY /* not if only local threads supported */
780 NSPR_API(void) _PR_MD_CLOCK_INTERRUPT(void);
781 #define _PR_MD_CLOCK_INTERRUPT _MD_CLOCK_INTERRUPT
782 #endif
783
784 /* Stack debugging */
785 NSPR_API(void) _PR_MD_INIT_STACK(PRThreadStack *ts, PRIntn redzone);
786 #define _PR_MD_INIT_STACK _MD_INIT_STACK
787
788 NSPR_API(void) _PR_MD_CLEAR_STACK(PRThreadStack* ts);
789 #define _PR_MD_CLEAR_STACK _MD_CLEAR_STACK
790
791 /* CPU related */
792 NSPR_API(PRInt32) _PR_MD_GET_INTSOFF(void);
793 #define _PR_MD_GET_INTSOFF _MD_GET_INTSOFF
794
795 NSPR_API(void) _PR_MD_SET_INTSOFF(PRInt32 _val);
796 #define _PR_MD_SET_INTSOFF _MD_SET_INTSOFF
797
798 NSPR_API(_PRCPU*) _PR_MD_CURRENT_CPU(void);
799 #define _PR_MD_CURRENT_CPU _MD_CURRENT_CPU
800
801 NSPR_API(void) _PR_MD_SET_CURRENT_CPU(_PRCPU *cpu);
802 #define _PR_MD_SET_CURRENT_CPU _MD_SET_CURRENT_CPU
803
804 NSPR_API(void) _PR_MD_INIT_RUNNING_CPU(_PRCPU *cpu);
805 #define _PR_MD_INIT_RUNNING_CPU _MD_INIT_RUNNING_CPU
806
807 /*
808 * Returns the number of threads awoken or 0 if a timeout occurred;
809 */
810 extern PRInt32 _PR_MD_PAUSE_CPU(PRIntervalTime timeout);
811 #define _PR_MD_PAUSE_CPU _MD_PAUSE_CPU
812
813 extern void _PR_MD_CLEANUP_BEFORE_EXIT(void);
814 #define _PR_MD_CLEANUP_BEFORE_EXIT _MD_CLEANUP_BEFORE_EXIT
815
816 extern void _PR_MD_EXIT(PRIntn status);
817 #define _PR_MD_EXIT _MD_EXIT
818
819 /* Locks related */
820
821 NSPR_API(void) _PR_MD_INIT_LOCKS(void);
822 #define _PR_MD_INIT_LOCKS _MD_INIT_LOCKS
823
824 NSPR_API(PRStatus) _PR_MD_NEW_LOCK(_MDLock *md);
825 #define _PR_MD_NEW_LOCK _MD_NEW_LOCK
826
827 NSPR_API(void) _PR_MD_FREE_LOCK(_MDLock *md);
828 #define _PR_MD_FREE_LOCK _MD_FREE_LOCK
829
830 NSPR_API(void) _PR_MD_LOCK(_MDLock *md);
831 #define _PR_MD_LOCK _MD_LOCK
832
833 /* Return 0 on success, a nonzero value on failure. */
834 NSPR_API(PRIntn) _PR_MD_TEST_AND_LOCK(_MDLock *md);
835 #define _PR_MD_TEST_AND_LOCK _MD_TEST_AND_LOCK
836
837 NSPR_API(void) _PR_MD_UNLOCK(_MDLock *md);
838 #define _PR_MD_UNLOCK _MD_UNLOCK
839
840 NSPR_API(void) _PR_MD_IOQ_LOCK(void);
841 #define _PR_MD_IOQ_LOCK _MD_IOQ_LOCK
842
843 NSPR_API(void) _PR_MD_IOQ_UNLOCK(void);
844 #define _PR_MD_IOQ_UNLOCK _MD_IOQ_UNLOCK
845
846 #ifndef _PR_LOCAL_THREADS_ONLY /* not if only local threads supported */
847 /* Semaphore related -- only for native threads */
848 #ifdef HAVE_CVAR_BUILT_ON_SEM
849 NSPR_API(void) _PR_MD_NEW_SEM(_MDSemaphore *md, PRUintn value);
850 #define _PR_MD_NEW_SEM _MD_NEW_SEM
851
852 NSPR_API(void) _PR_MD_DESTROY_SEM(_MDSemaphore *md);
853 #define _PR_MD_DESTROY_SEM _MD_DESTROY_SEM
854
855 NSPR_API(PRStatus) _PR_MD_TIMED_WAIT_SEM(
856 _MDSemaphore *md, PRIntervalTime timeout);
857 #define _PR_MD_TIMED_WAIT_SEM _MD_TIMED_WAIT_SEM
858
859 NSPR_API(PRStatus) _PR_MD_WAIT_SEM(_MDSemaphore *md);
860 #define _PR_MD_WAIT_SEM _MD_WAIT_SEM
861
862 NSPR_API(void) _PR_MD_POST_SEM(_MDSemaphore *md);
863 #define _PR_MD_POST_SEM _MD_POST_SEM
864 #endif /* HAVE_CVAR_BUILT_ON_SEM */
865
866 #endif
867
868 /* Condition Variables related -- only for native threads */
869
870 #ifndef _PR_LOCAL_THREADS_ONLY /* not if only local threads supported */
871 NSPR_API(PRInt32) _PR_MD_NEW_CV(_MDCVar *md);
872 #define _PR_MD_NEW_CV _MD_NEW_CV
873
874 NSPR_API(void) _PR_MD_FREE_CV(_MDCVar *md);
875 #define _PR_MD_FREE_CV _MD_FREE_CV
876
877 NSPR_API(void) _PR_MD_WAIT_CV(
878 _MDCVar *mdCVar,_MDLock *mdLock,PRIntervalTime timeout);
879 #define _PR_MD_WAIT_CV _MD_WAIT_CV
880
881 NSPR_API(void) _PR_MD_NOTIFY_CV(_MDCVar *md, _MDLock *lock);
882 #define _PR_MD_NOTIFY_CV _MD_NOTIFY_CV
883
884 NSPR_API(void) _PR_MD_NOTIFYALL_CV(_MDCVar *md, _MDLock *lock);
885 #define _PR_MD_NOTIFYALL_CV _MD_NOTIFYALL_CV
886 #endif /* _PR_LOCAL_THREADS_ONLY */
887
888 /* Threads related */
889 NSPR_API(PRThread*) _PR_MD_CURRENT_THREAD(void);
890 #define _PR_MD_CURRENT_THREAD _MD_CURRENT_THREAD
891
892 NSPR_API(PRThread*) _PR_MD_GET_ATTACHED_THREAD(void);
893 #define _PR_MD_GET_ATTACHED_THREAD _MD_GET_ATTACHED_THREAD
894
895 NSPR_API(PRThread*) _PR_MD_LAST_THREAD(void);
896 #define _PR_MD_LAST_THREAD _MD_LAST_THREAD
897
898 NSPR_API(void) _PR_MD_SET_CURRENT_THREAD(PRThread *thread);
899 #define _PR_MD_SET_CURRENT_THREAD _MD_SET_CURRENT_THREAD
900
901 NSPR_API(void) _PR_MD_SET_LAST_THREAD(PRThread *thread);
902 #define _PR_MD_SET_LAST_THREAD _MD_SET_LAST_THREAD
903
904 extern PRStatus _PR_MD_INIT_THREAD(PRThread *thread);
905 #define _PR_MD_INIT_THREAD _MD_INIT_THREAD
906
907 extern void _PR_MD_EXIT_THREAD(PRThread *thread);
908 #define _PR_MD_EXIT_THREAD _MD_EXIT_THREAD
909
910 #ifndef _PR_LOCAL_THREADS_ONLY /* not if only local threads supported */
911
912 NSPR_API(PRStatus) _PR_MD_INIT_ATTACHED_THREAD(PRThread *thread);
913 #define _PR_MD_INIT_ATTACHED_THREAD _MD_INIT_ATTACHED_THREAD
914
915 extern void _PR_MD_SUSPEND_THREAD(PRThread *thread);
916 #define _PR_MD_SUSPEND_THREAD _MD_SUSPEND_THREAD
917
918 extern void _PR_MD_RESUME_THREAD(PRThread *thread);
919 #define _PR_MD_RESUME_THREAD _MD_RESUME_THREAD
920
921 extern void _PR_MD_SUSPEND_CPU(_PRCPU *cpu);
922 #define _PR_MD_SUSPEND_CPU _MD_SUSPEND_CPU
923
924 extern void _PR_MD_RESUME_CPU(_PRCPU *cpu);
925 #define _PR_MD_RESUME_CPU _MD_RESUME_CPU
926
927 extern void _PR_MD_BEGIN_SUSPEND_ALL(void);
928 #define _PR_MD_BEGIN_SUSPEND_ALL _MD_BEGIN_SUSPEND_ALL
929
930 extern void _PR_MD_END_SUSPEND_ALL(void);
931 #define _PR_MD_END_SUSPEND_ALL _MD_END_SUSPEND_ALL
932
933 extern void _PR_MD_BEGIN_RESUME_ALL(void);
934 #define _PR_MD_BEGIN_RESUME_ALL _MD_BEGIN_RESUME_ALL
935
936 extern void _PR_MD_END_RESUME_ALL(void);
937 #define _PR_MD_END_RESUME_ALL _MD_END_RESUME_ALL
938
939 #if defined(IRIX)
940 NSPR_API(void) _PR_IRIX_CHILD_PROCESS(void);
941 #endif /* IRIX */
942
943 #endif /* !_PR_LOCAL_THREADS_ONLY */
944
945 extern void _PR_MD_CLEAN_THREAD(PRThread *thread);
946 #define _PR_MD_CLEAN_THREAD _MD_CLEAN_THREAD
947
948 #ifdef HAVE_CUSTOM_USER_THREADS
949 extern void _PR_MD_CREATE_PRIMORDIAL_USER_THREAD(PRThread *);
950 #define _PR_MD_CREATE_PRIMORDIAL_USER_THREAD _MD_CREATE_PRIMORDIAL_USER_THREA D
951
952 extern PRThread* _PR_MD_CREATE_USER_THREAD(
953 PRUint32 stacksize,
954 void (*start)(void *),
955 void *arg);
956 #define _PR_MD_CREATE_USER_THREAD _MD_CREATE_USER_THREAD
957 #endif
958
959 extern PRStatus _PR_MD_CREATE_THREAD(
960 PRThread *thread,
961 void (*start) (void *),
962 PRThreadPriority priority,
963 PRThreadScope scope,
964 PRThreadState state,
965 PRUint32 stackSize);
966 #define _PR_MD_CREATE_THREAD _MD_CREATE_THREAD
967
968 extern void _PR_MD_JOIN_THREAD(_MDThread *md);
969 #define _PR_MD_JOIN_THREAD _MD_JOIN_THREAD
970
971 extern void _PR_MD_END_THREAD(void);
972 #define _PR_MD_END_THREAD _MD_END_THREAD
973
974 extern void _PR_MD_YIELD(void);
975 #define _PR_MD_YIELD _MD_YIELD
976
977 extern void _PR_MD_SET_PRIORITY(_MDThread *md, PRThreadPriority newPri);
978 #define _PR_MD_SET_PRIORITY _MD_SET_PRIORITY
979
980 extern void _PR_MD_SET_CURRENT_THREAD_NAME(const char *name);
981 #define _PR_MD_SET_CURRENT_THREAD_NAME _MD_SET_CURRENT_THREAD_NAME
982
983 NSPR_API(void) _PR_MD_SUSPENDALL(void);
984 #define _PR_MD_SUSPENDALL _MD_SUSPENDALL
985
986 NSPR_API(void) _PR_MD_RESUMEALL(void);
987 #define _PR_MD_RESUMEALL _MD_RESUMEALL
988
989 extern void _PR_MD_INIT_CONTEXT(
990 PRThread *thread, char *top, void (*start) (void), PRBool *status);
991 #define _PR_MD_INIT_CONTEXT _MD_INIT_CONTEXT
992
993 extern void _PR_MD_SWITCH_CONTEXT(PRThread *thread);
994 #define _PR_MD_SWITCH_CONTEXT _MD_SWITCH_CONTEXT
995
996 extern void _PR_MD_RESTORE_CONTEXT(PRThread *thread);
997 #define _PR_MD_RESTORE_CONTEXT _MD_RESTORE_CONTEXT
998
999 /* Segment related */
1000 extern void _PR_MD_INIT_SEGS(void);
1001 #define _PR_MD_INIT_SEGS _MD_INIT_SEGS
1002
1003 extern PRStatus _PR_MD_ALLOC_SEGMENT(PRSegment *seg, PRUint32 size, void *vaddr) ;
1004 #define _PR_MD_ALLOC_SEGMENT _MD_ALLOC_SEGMENT
1005
1006 extern void _PR_MD_FREE_SEGMENT(PRSegment *seg);
1007 #define _PR_MD_FREE_SEGMENT _MD_FREE_SEGMENT
1008
1009 /* Directory enumeration related */
1010 extern PRStatus _PR_MD_OPEN_DIR(_MDDir *md,const char *name);
1011 #define _PR_MD_OPEN_DIR _MD_OPEN_DIR
1012
1013 extern char * _PR_MD_READ_DIR(_MDDir *md, PRIntn flags);
1014 #define _PR_MD_READ_DIR _MD_READ_DIR
1015
1016 extern PRInt32 _PR_MD_CLOSE_DIR(_MDDir *md);
1017 #define _PR_MD_CLOSE_DIR _MD_CLOSE_DIR
1018
1019 /* Named semaphores related */
1020 extern PRSem * _PR_MD_OPEN_SEMAPHORE(
1021 const char *osname, PRIntn flags, PRIntn mode, PRUintn value);
1022 #define _PR_MD_OPEN_SEMAPHORE _MD_OPEN_SEMAPHORE
1023
1024 extern PRStatus _PR_MD_WAIT_SEMAPHORE(PRSem *sem);
1025 #define _PR_MD_WAIT_SEMAPHORE _MD_WAIT_SEMAPHORE
1026
1027 extern PRStatus _PR_MD_POST_SEMAPHORE(PRSem *sem);
1028 #define _PR_MD_POST_SEMAPHORE _MD_POST_SEMAPHORE
1029
1030 extern PRStatus _PR_MD_CLOSE_SEMAPHORE(PRSem *sem);
1031 #define _PR_MD_CLOSE_SEMAPHORE _MD_CLOSE_SEMAPHORE
1032
1033 extern PRStatus _PR_MD_DELETE_SEMAPHORE(const char *osname);
1034 #define _PR_MD_DELETE_SEMAPHORE _MD_DELETE_SEMAPHORE
1035
1036 /* I/O related */
1037 extern void _PR_MD_INIT_FILEDESC(PRFileDesc *fd);
1038 #define _PR_MD_INIT_FILEDESC _MD_INIT_FILEDESC
1039
1040 extern void _PR_MD_MAKE_NONBLOCK(PRFileDesc *fd);
1041 #define _PR_MD_MAKE_NONBLOCK _MD_MAKE_NONBLOCK
1042
1043 /* File I/O related */
1044 extern PROsfd _PR_MD_OPEN(const char *name, PRIntn osflags, PRIntn mode);
1045 #define _PR_MD_OPEN _MD_OPEN
1046
1047 extern PROsfd _PR_MD_OPEN_FILE(const char *name, PRIntn osflags, PRIntn mode);
1048 #define _PR_MD_OPEN_FILE _MD_OPEN_FILE
1049
1050 extern PRInt32 _PR_MD_CLOSE_FILE(PROsfd osfd);
1051 #define _PR_MD_CLOSE_FILE _MD_CLOSE_FILE
1052
1053 extern PRInt32 _PR_MD_READ(PRFileDesc *fd, void *buf, PRInt32 amount);
1054 #define _PR_MD_READ _MD_READ
1055
1056 extern PRInt32 _PR_MD_WRITE(PRFileDesc *fd, const void *buf, PRInt32 amount);
1057 #define _PR_MD_WRITE _MD_WRITE
1058
1059 extern PRInt32 _PR_MD_WRITEV(
1060 PRFileDesc *fd, const struct PRIOVec *iov,
1061 PRInt32 iov_size, PRIntervalTime timeout);
1062 #define _PR_MD_WRITEV _MD_WRITEV
1063
1064 extern PRInt32 _PR_MD_FSYNC(PRFileDesc *fd);
1065 #define _PR_MD_FSYNC _MD_FSYNC
1066
1067 extern PRInt32 _PR_MD_DELETE(const char *name);
1068 #define _PR_MD_DELETE _MD_DELETE
1069
1070 extern PRInt32 _PR_MD_RENAME(const char *from, const char *to);
1071 #define _PR_MD_RENAME _MD_RENAME
1072
1073 extern PRInt32 _PR_MD_ACCESS(const char *name, PRAccessHow how);
1074 #define _PR_MD_ACCESS _MD_ACCESS
1075
1076 extern PRInt32 _PR_MD_STAT(const char *name, struct stat *buf);
1077 #define _PR_MD_STAT _MD_STAT
1078
1079 extern PRInt32 _PR_MD_MKDIR(const char *name, PRIntn mode);
1080 #define _PR_MD_MKDIR _MD_MKDIR
1081
1082 extern PRInt32 _PR_MD_MAKE_DIR(const char *name, PRIntn mode);
1083 #define _PR_MD_MAKE_DIR _MD_MAKE_DIR
1084
1085 extern PRInt32 _PR_MD_RMDIR(const char *name);
1086 #define _PR_MD_RMDIR _MD_RMDIR
1087
1088 #ifdef MOZ_UNICODE
1089 /* UTF16 File I/O related */
1090 extern PRStatus _PR_MD_OPEN_DIR_UTF16(_MDDirUTF16 *md, const PRUnichar *name);
1091 #define _PR_MD_OPEN_DIR_UTF16 _MD_OPEN_DIR_UTF16
1092
1093 extern PROsfd _PR_MD_OPEN_FILE_UTF16(const PRUnichar *name, PRIntn osflags, PRIn tn mode);
1094 #define _PR_MD_OPEN_FILE_UTF16 _MD_OPEN_FILE_UTF16
1095
1096 extern PRUnichar * _PR_MD_READ_DIR_UTF16(_MDDirUTF16 *md, PRIntn flags);
1097 #define _PR_MD_READ_DIR_UTF16 _MD_READ_DIR_UTF16
1098
1099 extern PRInt32 _PR_MD_CLOSE_DIR_UTF16(_MDDirUTF16 *md);
1100 #define _PR_MD_CLOSE_DIR_UTF16 _MD_CLOSE_DIR_UTF16
1101
1102 extern PRInt32 _PR_MD_GETFILEINFO64_UTF16(const PRUnichar *fn, PRFileInfo64 *inf o);
1103 #define _PR_MD_GETFILEINFO64_UTF16 _MD_GETFILEINFO64_UTF16
1104 #endif /* MOZ_UNICODE */
1105
1106 /* Socket I/O related */
1107 extern void _PR_MD_INIT_IO(void);
1108 #define _PR_MD_INIT_IO _MD_INIT_IO
1109
1110 extern PRInt32 _PR_MD_CLOSE_SOCKET(PROsfd osfd);
1111 #define _PR_MD_CLOSE_SOCKET _MD_CLOSE_SOCKET
1112
1113 extern PRInt32 _PR_MD_CONNECT(
1114 PRFileDesc *fd, const PRNetAddr *addr,
1115 PRUint32 addrlen, PRIntervalTime timeout);
1116 #define _PR_MD_CONNECT _MD_CONNECT
1117
1118 extern PROsfd _PR_MD_ACCEPT(
1119 PRFileDesc *fd, PRNetAddr *addr,
1120 PRUint32 *addrlen, PRIntervalTime timeout);
1121 #define _PR_MD_ACCEPT _MD_ACCEPT
1122
1123 extern PRInt32 _PR_MD_BIND(PRFileDesc *fd, const PRNetAddr *addr, PRUint32 addrl en);
1124 #define _PR_MD_BIND _MD_BIND
1125
1126 extern PRInt32 _PR_MD_LISTEN(PRFileDesc *fd, PRIntn backlog);
1127 #define _PR_MD_LISTEN _MD_LISTEN
1128
1129 extern PRInt32 _PR_MD_SHUTDOWN(PRFileDesc *fd, PRIntn how);
1130 #define _PR_MD_SHUTDOWN _MD_SHUTDOWN
1131
1132 extern PRInt32 _PR_MD_RECV(PRFileDesc *fd, void *buf, PRInt32 amount,
1133 PRIntn flags, PRIntervalTime timeout);
1134 #define _PR_MD_RECV _MD_RECV
1135
1136 extern PRInt32 _PR_MD_SEND(
1137 PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags,
1138 PRIntervalTime timeout);
1139 #define _PR_MD_SEND _MD_SEND
1140
1141 extern PRInt32 _PR_MD_ACCEPT_READ(PRFileDesc *sd, PROsfd *newSock,
1142 PRNetAddr **raddr, void *buf, PRInt32 amount,
1143 PRIntervalTime timeout);
1144 #define _PR_MD_ACCEPT_READ _MD_ACCEPT_READ
1145
1146 #ifdef WIN32
1147 extern PROsfd _PR_MD_FAST_ACCEPT(PRFileDesc *fd, PRNetAddr *addr,
1148 PRUint32 *addrlen, PRIntervalTime timeout,
1149 PRBool fast,
1150 _PR_AcceptTimeoutCallback callback,
1151 void *callbackArg);
1152
1153 extern PRInt32 _PR_MD_FAST_ACCEPT_READ(PRFileDesc *sd, PROsfd *newSock,
1154 PRNetAddr **raddr, void *buf, PRInt32 amount,
1155 PRIntervalTime timeout, PRBool fast,
1156 _PR_AcceptTimeoutCallback callback,
1157 void *callbackArg);
1158
1159 extern void _PR_MD_UPDATE_ACCEPT_CONTEXT(PROsfd s, PROsfd ls);
1160 #define _PR_MD_UPDATE_ACCEPT_CONTEXT _MD_UPDATE_ACCEPT_CONTEXT
1161 /*
1162 * The NSPR epoch (00:00:00 1 Jan 1970 UTC) in FILETIME.
1163 * We store the value in a PRTime variable for convenience.
1164 * This constant is used by _PR_FileTimeToPRTime().
1165 * This is defined in ntmisc.c
1166 */
1167 extern const PRTime _pr_filetime_offset;
1168 #endif /* WIN32 */
1169
1170 extern PRInt32 _PR_MD_SENDFILE(
1171 PRFileDesc *sock, PRSendFileData *sfd,
1172 PRInt32 flags, PRIntervalTime timeout);
1173 #define _PR_MD_SENDFILE _MD_SENDFILE
1174
1175 extern PRStatus _PR_MD_GETSOCKNAME(
1176 PRFileDesc *fd, PRNetAddr *addr, PRUint32 *addrlen);
1177 #define _PR_MD_GETSOCKNAME _MD_GETSOCKNAME
1178
1179 extern PRStatus _PR_MD_GETPEERNAME(
1180 PRFileDesc *fd, PRNetAddr *addr, PRUint32 *addrlen);
1181 #define _PR_MD_GETPEERNAME _MD_GETPEERNAME
1182
1183 extern PRStatus _PR_MD_GETSOCKOPT(
1184 PRFileDesc *fd, PRInt32 level, PRInt32 optname, char* optval, PRInt32* optle n);
1185 #define _PR_MD_GETSOCKOPT _MD_GETSOCKOPT
1186
1187 extern PRStatus _PR_MD_SETSOCKOPT(
1188 PRFileDesc *fd, PRInt32 level, PRInt32 optname,
1189 const char* optval, PRInt32 optlen);
1190 #define _PR_MD_SETSOCKOPT _MD_SETSOCKOPT
1191
1192 extern PRStatus PR_CALLBACK _PR_SocketGetSocketOption(
1193 PRFileDesc *fd, PRSocketOptionData *data);
1194
1195 extern PRStatus PR_CALLBACK _PR_SocketSetSocketOption(
1196 PRFileDesc *fd, const PRSocketOptionData *data);
1197
1198 extern PRInt32 _PR_MD_RECVFROM(
1199 PRFileDesc *fd, void *buf, PRInt32 amount, PRIntn flags,
1200 PRNetAddr *addr, PRUint32 *addrlen, PRIntervalTime timeout);
1201 #define _PR_MD_RECVFROM _MD_RECVFROM
1202
1203 extern PRInt32 _PR_MD_SENDTO(
1204 PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags,
1205 const PRNetAddr *addr, PRUint32 addrlen, PRIntervalTime timeout);
1206 #define _PR_MD_SENDTO _MD_SENDTO
1207
1208 extern PRInt32 _PR_MD_SOCKETPAIR(int af, int type, int flags, PROsfd *osfd);
1209 #define _PR_MD_SOCKETPAIR _MD_SOCKETPAIR
1210
1211 extern PROsfd _PR_MD_SOCKET(int af, int type, int flags);
1212 #define _PR_MD_SOCKET _MD_SOCKET
1213
1214 extern PRInt32 _PR_MD_SOCKETAVAILABLE(PRFileDesc *fd);
1215 #define _PR_MD_SOCKETAVAILABLE _MD_SOCKETAVAILABLE
1216
1217 extern PRInt32 _PR_MD_PIPEAVAILABLE(PRFileDesc *fd);
1218 #define _PR_MD_PIPEAVAILABLE _MD_PIPEAVAILABLE
1219
1220 extern PRInt32 _PR_MD_PR_POLL(PRPollDesc *pds, PRIntn npds,
1221 PRIntervalTime timeout);
1222 #define _PR_MD_PR_POLL _MD_PR_POLL
1223
1224 /*
1225 * Initialize fd->secret->inheritable for a newly created fd.
1226 * If 'imported' is false, the osfd (i.e., fd->secret->md.osfd)
1227 * was created by NSPR and hence has the OS-dependent default
1228 * inheritable attribute. If 'imported' is true, the osfd was
1229 * not created by NSPR and hence a system call is required to
1230 * query its inheritable attribute. Since we may never need to
1231 * know the inheritable attribute of a fd, a platform may choose
1232 * to initialize fd->secret->inheritable of an imported fd to
1233 * _PR_TRI_UNKNOWN and only pay the cost of the system call
1234 * (in _PR_MD_QUERY_FD_INHERITABLE) when necessary.
1235 */
1236 extern void _PR_MD_INIT_FD_INHERITABLE(PRFileDesc *fd, PRBool imported);
1237 #define _PR_MD_INIT_FD_INHERITABLE _MD_INIT_FD_INHERITABLE
1238
1239 extern PRStatus _PR_MD_SET_FD_INHERITABLE(PRFileDesc *fd, PRBool inheritable);
1240 #define _PR_MD_SET_FD_INHERITABLE _MD_SET_FD_INHERITABLE
1241
1242
1243 #define _PR_PROCESS_TIMEOUT_INTERRUPT_ERRORS(me) \
1244 if (_PR_PENDING_INTERRUPT(me)) { \
1245 me->flags &= ~_PR_INTERRUPT; \
1246 PR_SetError( PR_PENDING_INTERRUPT_ERROR, 0); \
1247 } else { \
1248 PR_SetError(PR_IO_TIMEOUT_ERROR, 0); \
1249 }
1250
1251 extern void *_PR_MD_GET_SP(PRThread *thread);
1252 #define _PR_MD_GET_SP _MD_GET_SP
1253
1254 #endif /* defined(_PR_PTHREADS) */
1255
1256 /************************************************************************/
1257 /*************************************************************************
1258 ** The remainder of the definitions are shared by pthreads and the classic
1259 ** NSPR code. These too may be conditionalized.
1260 *************************************************************************/
1261 /************************************************************************/
1262
1263 extern PROffset32 _PR_MD_LSEEK(PRFileDesc *fd, PROffset32 offset, PRSeekWhence w hence);
1264 #define _PR_MD_LSEEK _MD_LSEEK
1265
1266 extern PROffset64 _PR_MD_LSEEK64(PRFileDesc *fd, PROffset64 offset, PRSeekWhence whence);
1267 #define _PR_MD_LSEEK64 _MD_LSEEK64
1268
1269 extern PRInt32 _PR_MD_GETFILEINFO(const char *fn, PRFileInfo *info);
1270 #define _PR_MD_GETFILEINFO _MD_GETFILEINFO
1271
1272 extern PRInt32 _PR_MD_GETFILEINFO64(const char *fn, PRFileInfo64 *info);
1273 #define _PR_MD_GETFILEINFO64 _MD_GETFILEINFO64
1274
1275 extern PRInt32 _PR_MD_GETOPENFILEINFO(const PRFileDesc *fd, PRFileInfo *info);
1276 #define _PR_MD_GETOPENFILEINFO _MD_GETOPENFILEINFO
1277
1278 extern PRInt32 _PR_MD_GETOPENFILEINFO64(const PRFileDesc *fd, PRFileInfo64 *info );
1279 #define _PR_MD_GETOPENFILEINFO64 _MD_GETOPENFILEINFO64
1280
1281
1282 /*****************************************************************************/
1283 /************************** File descriptor caching **************************/
1284 /*****************************************************************************/
1285 extern void _PR_InitFdCache(void);
1286 extern void _PR_CleanupFdCache(void);
1287 extern PRFileDesc *_PR_Getfd(void);
1288 extern void _PR_Putfd(PRFileDesc *fd);
1289
1290 /*
1291 * These flags are used by NSPR temporarily in the poll
1292 * descriptor's out_flags field to record the mapping of
1293 * NSPR's poll flags to the system poll flags.
1294 *
1295 * If _PR_POLL_READ_SYS_WRITE bit is set, it means the
1296 * PR_POLL_READ flag specified by the topmost layer is
1297 * mapped to the WRITE flag at the system layer. Similarly
1298 * for the other three _PR_POLL_XXX_SYS_YYY flags. It is
1299 * assumed that the PR_POLL_EXCEPT flag doesn't get mapped
1300 * to other flags.
1301 */
1302 #define _PR_POLL_READ_SYS_READ 0x1
1303 #define _PR_POLL_READ_SYS_WRITE 0x2
1304 #define _PR_POLL_WRITE_SYS_READ 0x4
1305 #define _PR_POLL_WRITE_SYS_WRITE 0x8
1306
1307 /*
1308 ** These methods are coerced into file descriptor methods table
1309 ** when the intended service is inappropriate for the particular
1310 ** type of file descriptor.
1311 */
1312 extern PRIntn _PR_InvalidInt(void);
1313 extern PRInt16 _PR_InvalidInt16(void);
1314 extern PRInt64 _PR_InvalidInt64(void);
1315 extern PRStatus _PR_InvalidStatus(void);
1316 extern PRFileDesc *_PR_InvalidDesc(void);
1317
1318 extern PRIOMethods _pr_faulty_methods;
1319
1320 /*
1321 ** The PR_NETADDR_SIZE macro can only be called on a PRNetAddr union
1322 ** whose 'family' field is set. It returns the size of the union
1323 ** member corresponding to the specified address family.
1324 */
1325
1326 extern PRUintn _PR_NetAddrSize(const PRNetAddr* addr);
1327
1328 #if defined(_PR_INET6)
1329
1330 #define PR_NETADDR_SIZE(_addr) _PR_NetAddrSize(_addr)
1331
1332 #elif defined(_PR_HAVE_MD_SOCKADDR_IN6)
1333
1334 /*
1335 ** Under the following conditions:
1336 ** 1. _PR_INET6 is not defined;
1337 ** 2. _PR_INET6_PROBE is defined;
1338 ** 3. struct sockaddr_in6 has nonstandard fields at the end
1339 ** (e.g., on Solaris 8),
1340 ** (_addr)->ipv6 is smaller than struct sockaddr_in6, and
1341 ** hence we can't pass sizeof((_addr)->ipv6) to socket
1342 ** functions such as connect because they would fail with
1343 ** EINVAL.
1344 **
1345 ** To pass the correct socket address length to socket
1346 ** functions, define the macro _PR_HAVE_MD_SOCKADDR_IN6 and
1347 ** define struct _md_sockaddr_in6 to be isomorphic to
1348 ** struct sockaddr_in6.
1349 */
1350
1351 #if defined(XP_UNIX) || defined(XP_OS2)
1352 #define PR_NETADDR_SIZE(_addr) \
1353 ((_addr)->raw.family == PR_AF_INET \
1354 ? sizeof((_addr)->inet) \
1355 : ((_addr)->raw.family == PR_AF_INET6 \
1356 ? sizeof(struct _md_sockaddr_in6) \
1357 : sizeof((_addr)->local)))
1358 #else
1359 #define PR_NETADDR_SIZE(_addr) \
1360 ((_addr)->raw.family == PR_AF_INET \
1361 ? sizeof((_addr)->inet) \
1362 : sizeof(struct _md_sockaddr_in6))
1363 #endif /* defined(XP_UNIX) */
1364
1365 #else
1366
1367 #if defined(XP_UNIX) || defined(XP_OS2)
1368 #define PR_NETADDR_SIZE(_addr) \
1369 ((_addr)->raw.family == PR_AF_INET \
1370 ? sizeof((_addr)->inet) \
1371 : ((_addr)->raw.family == PR_AF_INET6 \
1372 ? sizeof((_addr)->ipv6) \
1373 : sizeof((_addr)->local)))
1374 #else
1375 #define PR_NETADDR_SIZE(_addr) \
1376 ((_addr)->raw.family == PR_AF_INET \
1377 ? sizeof((_addr)->inet) \
1378 : sizeof((_addr)->ipv6))
1379 #endif /* defined(XP_UNIX) */
1380
1381 #endif /* defined(_PR_INET6) */
1382
1383 extern PRStatus _PR_MapOptionName(
1384 PRSockOption optname, PRInt32 *level, PRInt32 *name);
1385 extern void _PR_InitThreads(
1386 PRThreadType type, PRThreadPriority priority, PRUintn maxPTDs);
1387
1388 struct PRLock {
1389 #if defined(_PR_PTHREADS)
1390 pthread_mutex_t mutex; /* the underlying lock */
1391 _PT_Notified notified; /* array of conditions notified */
1392 PRBool locked; /* whether the mutex is locked */
1393 pthread_t owner; /* if locked, current lock owner */
1394 #elif defined(_PR_BTHREADS)
1395 sem_id semaphoreID; /* the underlying lock */
1396 int32 benaphoreCount; /* number of people in lock */
1397 thread_id owner; /* current lock owner */
1398 #else /* not pthreads or Be threads */
1399 PRCList links; /* linkage for PRThread.lockList */
1400 struct PRThread *owner; /* current lock owner */
1401 PRCList waitQ; /* list of threads waiting for lock */
1402 PRThreadPriority priority; /* priority of lock */
1403 PRThreadPriority boostPriority; /* boosted priority of lock owner */
1404 _MDLock ilock; /* Internal Lock to protect user-level field s */
1405 #endif
1406 };
1407
1408 extern void _PR_InitLocks(void);
1409
1410 struct PRCondVar {
1411 PRLock *lock; /* associated lock that protects the condition * /
1412 #if defined(_PR_PTHREADS)
1413 pthread_cond_t cv; /* underlying pthreads condition */
1414 PRInt32 notify_pending; /* CV has destroy pending notification */
1415 #elif defined(_PR_BTHREADS)
1416 sem_id sem; /* the underlying lock */
1417 sem_id handshakeSem; /* the lock for 'notify'-threads waiting for con firmation */
1418 sem_id signalSem; /* the lock for threads waiting for someone to n otify */
1419 volatile int32 nw; /* the number waiting */
1420 volatile int32 ns; /* the number signalling */
1421 long signalBenCount; /* the number waiting on the underlying sem */
1422 #else /* not pthreads or Be threads */
1423 PRCList condQ; /* Condition variable wait Q */
1424 _MDLock ilock; /* Internal Lock to protect condQ */
1425 _MDCVar md;
1426 #endif
1427 };
1428
1429 /************************************************************************/
1430
1431 struct PRMonitor {
1432 const char* name; /* monitor name for debugging */
1433 #if defined(_PR_PTHREADS)
1434 PRLock lock; /* the lock structure */
1435 pthread_t owner; /* the owner of the lock or invalid */
1436 PRCondVar *cvar; /* condition variable queue */
1437 #else /* defined(_PR_PTHREADS) */
1438 PRCondVar *cvar; /* associated lock and condition variable queue */
1439 #endif /* defined(_PR_PTHREADS) */
1440 PRUint32 entryCount; /* # of times re-entered */
1441 };
1442
1443 /************************************************************************/
1444
1445 struct PRSemaphore {
1446 #if defined(_PR_BTHREADS)
1447 sem_id sem;
1448 int32 benaphoreCount;
1449 #else
1450 PRCondVar *cvar; /* associated lock and condition variable queue */
1451 PRUintn count; /* the value of the counting semaphore */
1452 PRUint32 waiters; /* threads waiting on the semaphore */
1453 #if defined(_PR_PTHREADS)
1454 #else /* defined(_PR_PTHREADS) */
1455 _MDSemaphore md;
1456 #endif /* defined(_PR_PTHREADS) */
1457 #endif /* defined(_PR_BTHREADS) */
1458 };
1459
1460 NSPR_API(void) _PR_InitSem(void);
1461
1462 /*************************************************************************/
1463
1464 struct PRSem {
1465 #ifdef _PR_HAVE_POSIX_SEMAPHORES
1466 sem_t *sem;
1467 #elif defined(_PR_HAVE_SYSV_SEMAPHORES)
1468 int semid;
1469 #elif defined(WIN32)
1470 HANDLE sem;
1471 #else
1472 PRInt8 notused;
1473 #endif
1474 };
1475
1476 /*************************************************************************/
1477
1478 struct PRStackStr {
1479 /* head MUST be at offset 0; assembly language code relies on this */
1480 #if defined(AIX)
1481 volatile PRStackElem prstk_head;
1482 #else
1483 PRStackElem prstk_head;
1484 #endif
1485
1486 PRLock *prstk_lock;
1487 char *prstk_name;
1488 };
1489
1490 /************************************************************************/
1491
1492 /* XXX this needs to be exported (sigh) */
1493 struct PRThreadStack {
1494 PRCList links;
1495 PRUintn flags;
1496
1497 char *allocBase; /* base of stack's allocated memory */
1498 PRUint32 allocSize; /* size of stack's allocated memory */
1499 char *stackBottom; /* bottom of stack from C's point of view */
1500 char *stackTop; /* top of stack from C's point of view */
1501 PRUint32 stackSize; /* size of usable portion of the stack */
1502
1503 PRSegment *seg;
1504 PRThread* thr; /* back pointer to thread owning this stack */
1505
1506 #if defined(_PR_PTHREADS)
1507 #else /* defined(_PR_PTHREADS) */
1508 _MDThreadStack md;
1509 #endif /* defined(_PR_PTHREADS) */
1510 };
1511
1512 extern void _PR_DestroyThreadPrivate(PRThread*);
1513
1514 typedef void (PR_CALLBACK *_PRStartFn)(void *);
1515
1516 struct PRThread {
1517 PRUint32 state; /* thread's creation state */
1518 PRThreadPriority priority; /* apparent priority, loosly defined */
1519
1520 void *arg; /* argument to the client's entry point */
1521 _PRStartFn startFunc; /* the root of the client's thread */
1522
1523 PRThreadStack *stack; /* info about thread's stack (for GC) */
1524 void *environment; /* pointer to execution environment */
1525
1526 PRThreadDumpProc dump; /* dump thread info out */
1527 void *dumpArg; /* argument for the dump function */
1528
1529 /*
1530 ** Per thread private data
1531 */
1532 PRUint32 tpdLength; /* thread's current vector length */
1533 void **privateData; /* private data vector or NULL */
1534 PRErrorCode errorCode; /* current NSPR error code | zero */
1535 PRInt32 osErrorCode; /* mapping of errorCode | zero */
1536 PRIntn errorStringLength; /* textLength from last call to PR_SetErrorT ext() */
1537 PRInt32 errorStringSize; /* malloc()'d size of buffer | zero */
1538 char *errorString; /* current error string | NULL */
1539 char *name; /* thread's name */
1540
1541 #if defined(_PR_PTHREADS)
1542 pthread_t id; /* pthread identifier for the thread */
1543 PRBool okToDelete; /* ok to delete the PRThread struct? */
1544 PRCondVar *waiting; /* where the thread is waiting | NULL */
1545 void *sp; /* recorded sp for garbage collection */
1546 PRThread *next, *prev; /* simple linked list of all threads */
1547 PRUint32 suspend; /* used to store suspend and resume flags */
1548 #ifdef PT_NO_SIGTIMEDWAIT
1549 pthread_mutex_t suspendResumeMutex;
1550 pthread_cond_t suspendResumeCV;
1551 #endif
1552 PRUint32 interrupt_blocked; /* interrupt blocked */
1553 struct pollfd *syspoll_list; /* Unix polling list used by PR_Poll */
1554 PRUint32 syspoll_count; /* number of elements in syspoll_list */
1555 #if defined(_PR_POLL_WITH_SELECT)
1556 int *selectfd_list; /* Unix fd's that PR_Poll selects on */
1557 PRUint32 selectfd_count; /* number of elements in selectfd_list */
1558 #endif
1559 #elif defined(_PR_BTHREADS)
1560 PRUint32 flags;
1561 _MDThread md;
1562 PRBool io_pending;
1563 PRInt32 io_fd;
1564 PRBool io_suspended;
1565 #else /* not pthreads or Be threads */
1566 _MDLock threadLock; /* Lock to protect thread state variables.
1567 * Protects the following fields:
1568 * state
1569 * priority
1570 * links
1571 * wait
1572 * cpu
1573 */
1574 PRUint32 queueCount;
1575 PRUint32 waitCount;
1576
1577 PRCList active; /* on list of all active threads */
1578 PRCList links;
1579 PRCList waitQLinks; /* when thread is PR_Wait'ing */
1580 PRCList lockList; /* list of locks currently holding */
1581 PRIntervalTime sleep; /* sleep time when thread is sleeping */
1582 struct _wait {
1583 struct PRLock *lock;
1584 struct PRCondVar *cvar;
1585 } wait;
1586
1587 PRUint32 id;
1588 PRUint32 flags;
1589 PRUint32 no_sched; /* Don't schedule the thread to run.
1590 * This flag has relevance only when
1591 * multiple NSPR CPUs are created.
1592 * When a thread is de-scheduled, there
1593 * is a narrow window of time in which
1594 * the thread is put on the run queue
1595 * but the scheduler is actually using
1596 * the stack of this thread. It is safe
1597 * to run this thread on a different CPU
1598 * only when its stack is not in use on
1599 * any other CPU. The no_sched flag is
1600 * set during this interval to prevent
1601 * the thread from being scheduled on a
1602 * different CPU.
1603 */
1604
1605 /* thread termination condition variable for join */
1606 PRCondVar *term;
1607
1608 _PRCPU *cpu; /* cpu to which this thread is bound */
1609 PRUint32 threadAllocatedOnStack;/* boolean */
1610
1611 /* When an async IO is in progress and a second async IO cannot be
1612 * initiated, the io_pending flag is set to true. Some platforms will
1613 * not use the io_pending flag. If the io_pending flag is true, then
1614 * io_fd is the OS-file descriptor on which IO is pending.
1615 */
1616 PRBool io_pending;
1617 PRInt32 io_fd;
1618
1619 /* If a timeout occurs or if an outstanding IO is interrupted and the
1620 * OS doesn't support a real cancellation (NT or MAC), then the
1621 * io_suspended flag will be set to true. The thread will be resumed
1622 * but may run into trouble issuing additional IOs until the io_pending
1623 * flag can be cleared
1624 */
1625 PRBool io_suspended;
1626
1627 _MDThread md;
1628 #endif
1629 };
1630
1631 struct PRProcessAttr {
1632 PRFileDesc *stdinFd;
1633 PRFileDesc *stdoutFd;
1634 PRFileDesc *stderrFd;
1635 char *currentDirectory;
1636 char *fdInheritBuffer;
1637 PRSize fdInheritBufferSize;
1638 PRSize fdInheritBufferUsed;
1639 };
1640
1641 struct PRProcess {
1642 _MDProcess md;
1643 };
1644
1645 struct PRFileMap {
1646 PRFileDesc *fd;
1647 PRFileMapProtect prot;
1648 _MDFileMap md;
1649 };
1650
1651 /************************************************************************/
1652
1653 /*
1654 ** File descriptors of the NSPR layer can be in one of the
1655 ** following states (stored in the 'state' field of struct
1656 ** PRFilePrivate):
1657 ** - _PR_FILEDESC_OPEN: The OS fd is open.
1658 ** - _PR_FILEDESC_CLOSED: The OS fd is closed. The PRFileDesc
1659 ** is still open but is unusable. The only operation allowed
1660 ** on the PRFileDesc is PR_Close().
1661 ** - _PR_FILEDESC_FREED: The OS fd is closed and the PRFileDesc
1662 ** structure is freed.
1663 */
1664
1665 #define _PR_FILEDESC_OPEN 0xaaaaaaaa /* 1010101... */
1666 #define _PR_FILEDESC_CLOSED 0x55555555 /* 0101010... */
1667 #define _PR_FILEDESC_FREED 0x11111111
1668
1669 /*
1670 ** A boolean type with an additional "unknown" state
1671 */
1672
1673 typedef enum {
1674 _PR_TRI_TRUE = 1,
1675 _PR_TRI_FALSE = 0,
1676 _PR_TRI_UNKNOWN = -1
1677 } _PRTriStateBool;
1678
1679 struct PRFilePrivate {
1680 PRInt32 state;
1681 PRBool nonblocking;
1682 _PRTriStateBool inheritable;
1683 PRFileDesc *next;
1684 PRIntn lockCount; /* 0: not locked
1685 * -1: a native lockfile call is in progress
1686 * > 0: # times the file is locked */
1687 #ifdef _PR_HAVE_PEEK_BUFFER
1688 char *peekBuffer;
1689 PRInt32 peekBufSize;
1690 PRInt32 peekBytes;
1691 #endif
1692 #if !defined(_PR_HAVE_O_APPEND)
1693 PRBool appendMode; /* Some platforms don't have O_APPEND or its
1694 * equivalent, so they have to seek to end of
1695 * file on write if the file was opened in
1696 * append mode. See Bugzilla 4090, 276330. */
1697 #endif
1698 _MDFileDesc md;
1699 #ifdef _PR_NEED_SECRET_AF
1700 PRUint16 af; /* If the platform's implementation of accept()
1701 * requires knowing the address family of the
1702 * socket, we save the address family here. */
1703 #endif
1704 };
1705
1706 #ifdef _WIN64
1707 #define PR_PRIdOSFD "lld" /* for printing PROsfd */
1708 #define PR_PRIxOSFD "llx"
1709 #define PR_SCNdOSFD "lld" /* for scanning PROsfd */
1710 #define PR_SCNxOSFD "llx"
1711 #else
1712 #define PR_PRIdOSFD "ld" /* for printing PROsfd */
1713 #define PR_PRIxOSFD "lx"
1714 #define PR_SCNdOSFD "ld" /* for scanning PROsfd */
1715 #define PR_SCNxOSFD "lx"
1716 #endif
1717
1718 struct PRDir {
1719 PRDirEntry d;
1720 _MDDir md;
1721 };
1722
1723 #ifdef MOZ_UNICODE
1724 struct PRDirUTF16 {
1725 PRDirEntry d;
1726 _MDDirUTF16 md;
1727 };
1728 #endif /* MOZ_UNICODE */
1729
1730 extern void _PR_InitSegs(void);
1731 extern void _PR_InitStacks(void);
1732 extern void _PR_InitTPD(void);
1733 extern void _PR_InitMem(void);
1734 extern void _PR_InitEnv(void);
1735 extern void _PR_InitCMon(void);
1736 extern void _PR_InitIO(void);
1737 extern void _PR_InitLog(void);
1738 extern void _PR_InitNet(void);
1739 extern void _PR_InitClock(void);
1740 extern void _PR_InitLinker(void);
1741 extern void _PR_InitAtomic(void);
1742 extern void _PR_InitCPUs(void);
1743 extern void _PR_InitDtoa(void);
1744 extern void _PR_InitTime(void);
1745 extern void _PR_InitMW(void);
1746 extern void _PR_InitRWLocks(void);
1747 extern void _PR_NotifyCondVar(PRCondVar *cvar, PRThread *me);
1748 extern void _PR_CleanupThread(PRThread *thread);
1749 extern void _PR_CleanupCallOnce(void);
1750 extern void _PR_CleanupMW(void);
1751 extern void _PR_CleanupTime(void);
1752 extern void _PR_CleanupDtoa(void);
1753 extern void _PR_ShutdownLinker(void);
1754 extern void _PR_CleanupEnv(void);
1755 extern void _PR_CleanupIO(void);
1756 extern void _PR_CleanupCMon(void);
1757 extern void _PR_CleanupNet(void);
1758 extern void _PR_CleanupLayerCache(void);
1759 extern void _PR_CleanupStacks(void);
1760 #ifdef WINNT
1761 extern void _PR_CleanupCPUs(void);
1762 #endif
1763 extern void _PR_CleanupThreads(void);
1764 extern void _PR_CleanupTPD(void);
1765 extern void _PR_Cleanup(void);
1766 extern void _PR_LogCleanup(void);
1767 extern void _PR_InitLayerCache(void);
1768
1769 extern PRBool _pr_initialized;
1770 extern void _PR_ImplicitInitialization(void);
1771 extern PRBool _PR_Obsolete(const char *obsolete, const char *preferred);
1772
1773 /************************************************************************/
1774
1775 struct PRSegment {
1776 void *vaddr;
1777 PRUint32 size;
1778 PRUintn flags;
1779 #if defined(_PR_PTHREADS)
1780 #else /* defined(_PR_PTHREADS) */
1781 _MDSegment md;
1782 #endif /* defined(_PR_PTHREADS) */
1783 };
1784
1785 /* PRSegment.flags */
1786 #define _PR_SEG_VM 0x1
1787
1788 /************************************************************************/
1789
1790 extern PRInt32 _pr_pageSize;
1791 extern PRInt32 _pr_pageShift;
1792
1793 extern PRLogModuleInfo *_pr_clock_lm;
1794 extern PRLogModuleInfo *_pr_cmon_lm;
1795 extern PRLogModuleInfo *_pr_io_lm;
1796 extern PRLogModuleInfo *_pr_cvar_lm;
1797 extern PRLogModuleInfo *_pr_mon_lm;
1798 extern PRLogModuleInfo *_pr_linker_lm;
1799 extern PRLogModuleInfo *_pr_sched_lm;
1800 extern PRLogModuleInfo *_pr_thread_lm;
1801 extern PRLogModuleInfo *_pr_gc_lm;
1802
1803 extern PRFileDesc *_pr_stdin;
1804 extern PRFileDesc *_pr_stdout;
1805 extern PRFileDesc *_pr_stderr;
1806
1807 /* Zone allocator */
1808 /*
1809 ** The zone allocator code has hardcoded pthread types and
1810 ** functions, so it can only be used in the pthreads version.
1811 ** This can be fixed by replacing the hardcoded pthread types
1812 ** and functions with macros that expand to the native thread
1813 ** types and functions on each platform.
1814 */
1815 #if defined(_PR_PTHREADS) && !defined(_PR_DCETHREADS)
1816 #define _PR_ZONE_ALLOCATOR
1817 #endif
1818
1819 #ifdef _PR_ZONE_ALLOCATOR
1820 extern void _PR_InitZones(void);
1821 extern void _PR_DestroyZones(void);
1822 #endif
1823
1824 /* Overriding malloc, free, etc. */
1825 #if !defined(_PR_NO_PREEMPT) && defined(XP_UNIX) \
1826 && !defined(_PR_PTHREADS) && !defined(_PR_GLOBAL_THREADS_ONLY) \
1827 && !defined(PURIFY) \
1828 && !defined(DARWIN) \
1829 && !defined(QNX) \
1830 && !(defined (UNIXWARE) && defined (USE_SVR4_THREADS))
1831 #define _PR_OVERRIDE_MALLOC
1832 #endif
1833
1834 /*************************************************************************
1835 * External machine-dependent code provided by each OS. * *
1836 *************************************************************************/
1837
1838 /* Initialization related */
1839 extern void _PR_MD_EARLY_INIT(void);
1840 #define _PR_MD_EARLY_INIT _MD_EARLY_INIT
1841
1842 extern void _PR_MD_INTERVAL_INIT(void);
1843 #define _PR_MD_INTERVAL_INIT _MD_INTERVAL_INIT
1844
1845 NSPR_API(void) _PR_MD_FINAL_INIT(void);
1846 #define _PR_MD_FINAL_INIT _MD_FINAL_INIT
1847
1848 extern void _PR_MD_EARLY_CLEANUP(void);
1849 #define _PR_MD_EARLY_CLEANUP _MD_EARLY_CLEANUP
1850
1851 /* Process control */
1852
1853 extern PRProcess * _PR_MD_CREATE_PROCESS(
1854 const char *path,
1855 char *const *argv,
1856 char *const *envp,
1857 const PRProcessAttr *attr);
1858 #define _PR_MD_CREATE_PROCESS _MD_CREATE_PROCESS
1859
1860 extern PRStatus _PR_MD_DETACH_PROCESS(PRProcess *process);
1861 #define _PR_MD_DETACH_PROCESS _MD_DETACH_PROCESS
1862
1863 extern PRStatus _PR_MD_WAIT_PROCESS(PRProcess *process, PRInt32 *exitCode);
1864 #define _PR_MD_WAIT_PROCESS _MD_WAIT_PROCESS
1865
1866 extern PRStatus _PR_MD_KILL_PROCESS(PRProcess *process);
1867 #define _PR_MD_KILL_PROCESS _MD_KILL_PROCESS
1868
1869 /* Current Time */
1870 NSPR_API(PRTime) _PR_MD_NOW(void);
1871 #define _PR_MD_NOW _MD_NOW
1872
1873 /* Environment related */
1874 extern char* _PR_MD_GET_ENV(const char *name);
1875 #define _PR_MD_GET_ENV _MD_GET_ENV
1876
1877 extern PRIntn _PR_MD_PUT_ENV(const char *name);
1878 #define _PR_MD_PUT_ENV _MD_PUT_ENV
1879
1880 /* Atomic operations */
1881
1882 extern void _PR_MD_INIT_ATOMIC(void);
1883 #define _PR_MD_INIT_ATOMIC _MD_INIT_ATOMIC
1884
1885 extern PRInt32 _PR_MD_ATOMIC_INCREMENT(PRInt32 *);
1886 #define _PR_MD_ATOMIC_INCREMENT _MD_ATOMIC_INCREMENT
1887
1888 extern PRInt32 _PR_MD_ATOMIC_ADD(PRInt32 *, PRInt32);
1889 #define _PR_MD_ATOMIC_ADD _MD_ATOMIC_ADD
1890
1891 extern PRInt32 _PR_MD_ATOMIC_DECREMENT(PRInt32 *);
1892 #define _PR_MD_ATOMIC_DECREMENT _MD_ATOMIC_DECREMENT
1893
1894 extern PRInt32 _PR_MD_ATOMIC_SET(PRInt32 *, PRInt32);
1895 #define _PR_MD_ATOMIC_SET _MD_ATOMIC_SET
1896
1897 /* Garbage collection */
1898
1899 /*
1900 ** Save the registers that the GC would find interesting into the thread
1901 ** "t". isCurrent will be non-zero if the thread state that is being
1902 ** saved is the currently executing thread. Return the address of the
1903 ** first register to be scanned as well as the number of registers to
1904 ** scan in "np".
1905 **
1906 ** If "isCurrent" is non-zero then it is allowed for the thread context
1907 ** area to be used as scratch storage to hold just the registers
1908 ** necessary for scanning.
1909 */
1910 extern PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np);
1911
1912 /* Time intervals */
1913
1914 extern PRIntervalTime _PR_MD_GET_INTERVAL(void);
1915 #define _PR_MD_GET_INTERVAL _MD_GET_INTERVAL
1916
1917 extern PRIntervalTime _PR_MD_INTERVAL_PER_SEC(void);
1918 #define _PR_MD_INTERVAL_PER_SEC _MD_INTERVAL_PER_SEC
1919
1920 /* Affinity masks */
1921
1922 extern PRInt32 _PR_MD_SETTHREADAFFINITYMASK(PRThread *thread, PRUint32 mask );
1923 #define _PR_MD_SETTHREADAFFINITYMASK _MD_SETTHREADAFFINITYMASK
1924
1925 extern PRInt32 _PR_MD_GETTHREADAFFINITYMASK(PRThread *thread, PRUint32 *mask);
1926 #define _PR_MD_GETTHREADAFFINITYMASK _MD_GETTHREADAFFINITYMASK
1927
1928 /* File locking */
1929
1930 extern PRStatus _PR_MD_LOCKFILE(PROsfd osfd);
1931 #define _PR_MD_LOCKFILE _MD_LOCKFILE
1932
1933 extern PRStatus _PR_MD_TLOCKFILE(PROsfd osfd);
1934 #define _PR_MD_TLOCKFILE _MD_TLOCKFILE
1935
1936 extern PRStatus _PR_MD_UNLOCKFILE(PROsfd osfd);
1937 #define _PR_MD_UNLOCKFILE _MD_UNLOCKFILE
1938
1939 /* Memory-mapped files */
1940
1941 extern PRStatus _PR_MD_CREATE_FILE_MAP(PRFileMap *fmap, PRInt64 size);
1942 #define _PR_MD_CREATE_FILE_MAP _MD_CREATE_FILE_MAP
1943
1944 extern PRInt32 _PR_MD_GET_MEM_MAP_ALIGNMENT(void);
1945 #define _PR_MD_GET_MEM_MAP_ALIGNMENT _MD_GET_MEM_MAP_ALIGNMENT
1946
1947 extern void * _PR_MD_MEM_MAP(
1948 PRFileMap *fmap,
1949 PROffset64 offset,
1950 PRUint32 len);
1951 #define _PR_MD_MEM_MAP _MD_MEM_MAP
1952
1953 extern PRStatus _PR_MD_MEM_UNMAP(void *addr, PRUint32 size);
1954 #define _PR_MD_MEM_UNMAP _MD_MEM_UNMAP
1955
1956 extern PRStatus _PR_MD_CLOSE_FILE_MAP(PRFileMap *fmap);
1957 #define _PR_MD_CLOSE_FILE_MAP _MD_CLOSE_FILE_MAP
1958
1959 /* Named Shared Memory */
1960
1961 /*
1962 ** Declare PRSharedMemory.
1963 */
1964 struct PRSharedMemory
1965 {
1966 char *ipcname; /* after conversion to native */
1967 PRSize size; /* from open */
1968 PRIntn mode; /* from open */
1969 PRIntn flags; /* from open */
1970 #if defined(PR_HAVE_POSIX_NAMED_SHARED_MEMORY)
1971 int id;
1972 #elif defined(PR_HAVE_SYSV_NAMED_SHARED_MEMORY)
1973 int id;
1974 #elif defined(PR_HAVE_WIN32_NAMED_SHARED_MEMORY)
1975 HANDLE handle;
1976 #else
1977 PRUint32 nothing; /* placeholder, nothing behind here */
1978 #endif
1979 PRUint32 ident; /* guard word at end of struct */
1980 #define _PR_SHM_IDENT 0xdeadbad
1981 };
1982
1983 extern PRSharedMemory * _MD_OpenSharedMemory(
1984 const char *name,
1985 PRSize size,
1986 PRIntn flags,
1987 PRIntn mode
1988 );
1989 #define _PR_MD_OPEN_SHARED_MEMORY _MD_OpenSharedMemory
1990
1991 extern void * _MD_AttachSharedMemory( PRSharedMemory *shm, PRIntn flags );
1992 #define _PR_MD_ATTACH_SHARED_MEMORY _MD_AttachSharedMemory
1993
1994 extern PRStatus _MD_DetachSharedMemory( PRSharedMemory *shm, void *addr );
1995 #define _PR_MD_DETACH_SHARED_MEMORY _MD_DetachSharedMemory
1996
1997 extern PRStatus _MD_CloseSharedMemory( PRSharedMemory *shm );
1998 #define _PR_MD_CLOSE_SHARED_MEMORY _MD_CloseSharedMemory
1999
2000 extern PRStatus _MD_DeleteSharedMemory( const char *name );
2001 #define _PR_MD_DELETE_SHARED_MEMORY _MD_DeleteSharedMemory
2002
2003 extern PRFileMap* _md_OpenAnonFileMap(
2004 const char *dirName,
2005 PRSize size,
2006 PRFileMapProtect prot
2007 );
2008 #define _PR_MD_OPEN_ANON_FILE_MAP _md_OpenAnonFileMap
2009
2010 extern PRStatus _md_ExportFileMapAsString(
2011 PRFileMap *fm,
2012 PRSize bufSize,
2013 char *buf
2014 );
2015 #define _PR_MD_EXPORT_FILE_MAP_AS_STRING _md_ExportFileMapAsString
2016
2017 extern PRFileMap * _md_ImportFileMapFromString(
2018 const char *fmstring
2019 );
2020 #define _PR_MD_IMPORT_FILE_MAP_FROM_STRING _md_ImportFileMapFromString
2021
2022
2023
2024 /* Interprocess communications (IPC) */
2025
2026 /*
2027 * The maximum length of an NSPR IPC name, including the
2028 * terminating null byte.
2029 */
2030 #define PR_IPC_NAME_SIZE 1024
2031
2032 /*
2033 * Types of NSPR IPC objects
2034 */
2035 typedef enum {
2036 _PRIPCSem, /* semaphores */
2037 _PRIPCShm /* shared memory segments */
2038 } _PRIPCType;
2039
2040 /*
2041 * Make a native IPC name from an NSPR IPC name.
2042 */
2043 extern PRStatus _PR_MakeNativeIPCName(
2044 const char *name, /* NSPR IPC name */
2045 char *result, /* result buffer */
2046 PRIntn size, /* size of result buffer */
2047 _PRIPCType type /* type of IPC object */
2048 );
2049
2050 /* Socket call error code */
2051
2052 NSPR_API(PRInt32) _PR_MD_GET_SOCKET_ERROR(void);
2053 #define _PR_MD_GET_SOCKET_ERROR _MD_GET_SOCKET_ERROR
2054
2055 /* Get name of current host */
2056 extern PRStatus _PR_MD_GETHOSTNAME(char *name, PRUint32 namelen);
2057 #define _PR_MD_GETHOSTNAME _MD_GETHOSTNAME
2058
2059 extern PRStatus _PR_MD_GETSYSINFO(PRSysInfo cmd, char *name, PRUint32 namelen);
2060 #define _PR_MD_GETSYSINFO _MD_GETSYSINFO
2061
2062 /* File descriptor inheritance */
2063
2064 /*
2065 * If fd->secret->inheritable is _PR_TRI_UNKNOWN and we need to
2066 * know the inheritable attribute of the fd, call this function
2067 * to find that out. This typically requires a system call.
2068 */
2069 extern void _PR_MD_QUERY_FD_INHERITABLE(PRFileDesc *fd);
2070 #define _PR_MD_QUERY_FD_INHERITABLE _MD_QUERY_FD_INHERITABLE
2071
2072 /* --- PR_GetRandomNoise() related things --- */
2073
2074 extern PRSize _PR_MD_GetRandomNoise( void *buf, PRSize size );
2075 #define _PR_MD_GET_RANDOM_NOISE(buf,size) _PR_MD_GetRandomNoise((buf),(size))
2076 extern PRSize _pr_CopyLowBits( void *dest, PRSize dstlen, void *src, PRSize srcl en );
2077
2078 /* end PR_GetRandomNoise() related */
2079
2080 #ifdef XP_BEOS
2081
2082 extern PRLock *_connectLock;
2083
2084 typedef struct _ConnectListNode {
2085 PRInt32 osfd;
2086 PRNetAddr addr;
2087 PRUint32 addrlen;
2088 PRIntervalTime timeout;
2089 } ConnectListNode;
2090
2091 extern ConnectListNode connectList[64];
2092
2093 extern PRUint32 connectCount;
2094
2095 #endif /* XP_BEOS */
2096
2097 PR_END_EXTERN_C
2098
2099 #endif /* primpl_h___ */
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