зеркало из https://github.com/mozilla/pjs.git
Add support for creating bound threads. Bug 338607.
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00a18ebabd
Коммит
3b8bf6ca5f
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@ -158,6 +158,7 @@ struct _PT_Notified
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#define PT_THREAD_GCABLE 0x20 /* thread is garbage collectible */
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#define PT_THREAD_SUSPENDED 0x40 /* thread has been suspended */
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#define PT_THREAD_FOREIGN 0x80 /* thread is not one of ours */
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#define PT_THREAD_BOUND 0x100 /* a bound-global thread */
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/*
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** Possible values for thread's suspend field
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@ -71,7 +71,8 @@ typedef enum PRThreadType {
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typedef enum PRThreadScope {
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PR_LOCAL_THREAD,
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PR_GLOBAL_THREAD
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PR_GLOBAL_THREAD,
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PR_GLOBAL_BOUND_THREAD
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} PRThreadScope;
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typedef enum PRThreadState {
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@ -200,7 +200,8 @@ PRStatus _MD_CreateThread(PRThread *thread,
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* when the corresponding NSPR threads terminate.
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*/
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flags = THR_SUSPENDED|THR_DETACHED;
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if (thread->flags & (_PR_GCABLE_THREAD|_PR_BOUND_THREAD))
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if ((thread->flags & (_PR_GCABLE_THREAD|_PR_BOUND_THREAD)) ||
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(scope == PR_GLOBAL_BOUND_THREAD))
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flags |= THR_BOUND;
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if (thr_create(NULL, thread->stack->stackSize,
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@ -219,7 +220,7 @@ PRStatus _MD_CreateThread(PRThread *thread,
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thr_sigsetmask(SIG_SETMASK, &oldset, NULL);
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_MD_NEW_SEM(&thread->md.waiter_sem, 0);
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if (scope == PR_GLOBAL_THREAD) {
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if ((scope == PR_GLOBAL_THREAD) || (scope == PR_GLOBAL_BOUND_THREAD)) {
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thread->flags |= _PR_GLOBAL_SCOPE;
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}
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@ -256,7 +256,8 @@ PRStatus _MD_CREATE_THREAD(PRThread *thread,
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flags = (state == PR_JOINABLE_THREAD ? THR_SUSPENDED/*|THR_NEW_LWP*/
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: THR_SUSPENDED|THR_DETACHED/*|THR_NEW_LWP*/);
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if (thread->flags & _PR_GCABLE_THREAD)
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if ((thread->flags & _PR_GCABLE_THREAD) ||
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(scope == PR_GLOBAL_BOUND_THREAD))
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flags |= THR_BOUND;
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if (thr_create(NULL, thread->stack->stackSize,
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@ -276,7 +277,7 @@ PRStatus _MD_CREATE_THREAD(PRThread *thread,
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thr_sigsetmask(SIG_SETMASK, &oldset, NULL);
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_MD_NEW_SEM(&thread->md.waiter_sem, 0);
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if (scope == PR_GLOBAL_THREAD) {
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if ((scope == PR_GLOBAL_THREAD) || (scope == PR_GLOBAL_BOUND_THREAD)) {
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thread->flags |= _PR_GLOBAL_SCOPE;
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}
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@ -311,6 +311,8 @@ static PRThread* _PR_CreateThread(
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thred->state |= PT_THREAD_DETACHED;
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if (PR_GLOBAL_THREAD == scope)
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thred->state |= PT_THREAD_GLOBAL;
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if (PR_GLOBAL_BOUND_THREAD == scope)
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thred->state |= (PT_THREAD_GLOBAL | PT_THREAD_BOUND);
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if (PR_SYSTEM_THREAD == type)
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thred->state |= PT_THREAD_SYSTEM;
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@ -339,6 +341,9 @@ static PRThread* _PR_CreateThread(
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else pt_book.user += 1;
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PR_Unlock(pt_book.ml);
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if (thred->state & PT_THREAD_BOUND) {
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rv = pthread_attr_setscope(&tattr, PTHREAD_SCOPE_SYSTEM);
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}
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/*
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* We pass a pointer to a local copy (instead of thred->id)
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* to pthread_create() because who knows what wacky things
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@ -518,7 +523,8 @@ PR_IMPLEMENT(PRThread*) PR_GetCurrentThread()
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PR_IMPLEMENT(PRThreadScope) PR_GetThreadScope(const PRThread *thred)
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{
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return PR_GLOBAL_THREAD;
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return (thred->state & PT_THREAD_BOUND) ?
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PR_GLOBAL_BOUND_THREAD : PR_GLOBAL_THREAD;
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} /* PR_GetThreadScope() */
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PR_IMPLEMENT(PRThreadType) PR_GetThreadType(const PRThread *thred)
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@ -1088,10 +1088,15 @@ PR_IMPLEMENT(PRThread*) _PR_CreateThread(PRThreadType type,
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me = _PR_MD_CURRENT_THREAD();
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#if defined(_PR_GLOBAL_THREADS_ONLY)
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/*
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* can create global threads only
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*/
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if (scope == PR_LOCAL_THREAD)
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scope = PR_GLOBAL_THREAD;
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#endif
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native = ((scope == PR_GLOBAL_THREAD) && _PR_IS_NATIVE_THREAD_SUPPORTED());
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native = (((scope == PR_GLOBAL_THREAD)|| (scope == PR_GLOBAL_BOUND_THREAD))
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&& _PR_IS_NATIVE_THREAD_SUPPORTED());
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_PR_ADJUST_STACKSIZE(stackSize);
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@ -403,9 +403,10 @@ PR_IMPLEMENT(PRThreadScope) PR_GetThreadScope(const PRThread *thread)
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#endif
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if (!_pr_initialized) _PR_ImplicitInitialization();
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if (_PR_IS_NATIVE_THREAD(thread))
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return PR_GLOBAL_THREAD;
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else
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if (_PR_IS_NATIVE_THREAD(thread)) {
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return (thread->flags & _PR_BOUND_THREAD) ? PR_GLOBAL_BOUND_THREAD :
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PR_GLOBAL_THREAD;
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} else
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return PR_LOCAL_THREAD;
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}
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