1977 JNIHandleBlock::release_block(block);
1978 }
1979
1980 if (free_handle_block() != NULL) {
1981 JNIHandleBlock* block = free_handle_block();
1982 set_free_handle_block(NULL);
1983 JNIHandleBlock::release_block(block);
1984 }
1985
1986 // These have to be removed while this is still a valid thread.
1987 remove_stack_guard_pages();
1988
1989 if (UseTLAB) {
1990 tlab().make_parsable(true); // retire TLAB
1991 }
1992
1993 if (JvmtiEnv::environments_might_exist()) {
1994 JvmtiExport::cleanup_thread(this);
1995 }
1996
1997 // We must flush any deferred card marks and other various GC barrier
1998 // related buffers (e.g. G1 SATB buffer and G1 dirty card queue buffer)
1999 // before removing a thread from the list of active threads.
2000 BarrierSet::barrier_set()->flush_deferred_barriers(this);
2001
2002 log_info(os, thread)("JavaThread %s (tid: " UINTX_FORMAT ").",
2003 exit_type == JavaThread::normal_exit ? "exiting" : "detaching",
2004 os::current_thread_id());
2005
2006 if (log_is_enabled(Debug, os, thread, timer)) {
2007 _timer_exit_phase3.stop();
2008 _timer_exit_phase4.start();
2009 }
2010 // Remove from list of active threads list, and notify VM thread if we are the last non-daemon thread
2011 Threads::remove(this);
2012
2013 if (log_is_enabled(Debug, os, thread, timer)) {
2014 _timer_exit_phase4.stop();
2015 ResourceMark rm(this);
2016 log_debug(os, thread, timer)("name='%s'"
2017 ", exit-phase1=" JLONG_FORMAT
2018 ", exit-phase2=" JLONG_FORMAT
2019 ", exit-phase3=" JLONG_FORMAT
2020 ", exit-phase4=" JLONG_FORMAT,
2021 get_thread_name(),
2022 _timer_exit_phase1.milliseconds(),
2023 _timer_exit_phase2.milliseconds(),
2024 _timer_exit_phase3.milliseconds(),
2025 _timer_exit_phase4.milliseconds());
2026 }
2027 }
2028
2029 #if INCLUDE_ALL_GCS
2030 void JavaThread::initialize_queues() {
2031 assert(!SafepointSynchronize::is_at_safepoint(),
2032 "we should not be at a safepoint");
2033
2034 SATBMarkQueue& satb_queue = satb_mark_queue();
2035 SATBMarkQueueSet& satb_queue_set = satb_mark_queue_set();
2036 // The SATB queue should have been constructed with its active
2037 // field set to false.
2038 assert(!satb_queue.is_active(), "SATB queue should not be active");
2039 assert(satb_queue.is_empty(), "SATB queue should be empty");
2040 // If we are creating the thread during a marking cycle, we should
2041 // set the active field of the SATB queue to true.
2042 if (satb_queue_set.is_active()) {
2043 satb_queue.set_active(true);
2044 }
2045
2046 DirtyCardQueue& dirty_queue = dirty_card_queue();
2047 // The dirty card queue should have been constructed with its
2048 // active field set to true.
2049 assert(dirty_queue.is_active(), "dirty card queue should be active");
2050 }
2051 #endif // INCLUDE_ALL_GCS
2052
2053 void JavaThread::cleanup_failed_attach_current_thread() {
2054 if (active_handles() != NULL) {
2055 JNIHandleBlock* block = active_handles();
2056 set_active_handles(NULL);
2057 JNIHandleBlock::release_block(block);
2058 }
2059
2060 if (free_handle_block() != NULL) {
2061 JNIHandleBlock* block = free_handle_block();
2062 set_free_handle_block(NULL);
2063 JNIHandleBlock::release_block(block);
2064 }
2065
2066 // These have to be removed while this is still a valid thread.
2067 remove_stack_guard_pages();
2068
2069 if (UseTLAB) {
2070 tlab().make_parsable(true); // retire TLAB, if any
2071 }
2072
2073 BarrierSet::barrier_set()->flush_deferred_barriers(this);
2074
2075 Threads::remove(this);
2076 this->smr_delete();
2077 }
2078
2079
2080
2081
2082 JavaThread* JavaThread::active() {
2083 Thread* thread = Thread::current();
2084 if (thread->is_Java_thread()) {
2085 return (JavaThread*) thread;
2086 } else {
2087 assert(thread->is_VM_thread(), "this must be a vm thread");
2088 VM_Operation* op = ((VMThread*) thread)->vm_operation();
2089 JavaThread *ret=op == NULL ? NULL : (JavaThread *)op->calling_thread();
2090 assert(ret->is_Java_thread(), "must be a Java thread");
2091 return ret;
2092 }
2093 }
2094
2095 bool JavaThread::is_lock_owned(address adr) const {
2096 if (Thread::is_lock_owned(adr)) return true;
2097
2098 for (MonitorChunk* chunk = monitor_chunks(); chunk != NULL; chunk = chunk->next()) {
2099 if (chunk->contains(adr)) return true;
2100 }
2101
4315 if (version == JNI_VERSION_1_1) return JNI_TRUE;
4316 return is_supported_jni_version(version);
4317 }
4318
4319
4320 jboolean Threads::is_supported_jni_version(jint version) {
4321 if (version == JNI_VERSION_1_2) return JNI_TRUE;
4322 if (version == JNI_VERSION_1_4) return JNI_TRUE;
4323 if (version == JNI_VERSION_1_6) return JNI_TRUE;
4324 if (version == JNI_VERSION_1_8) return JNI_TRUE;
4325 if (version == JNI_VERSION_9) return JNI_TRUE;
4326 if (version == JNI_VERSION_10) return JNI_TRUE;
4327 return JNI_FALSE;
4328 }
4329
4330
4331 void Threads::add(JavaThread* p, bool force_daemon) {
4332 // The threads lock must be owned at this point
4333 assert_locked_or_safepoint(Threads_lock);
4334
4335 // See the comment for this method in thread.hpp for its purpose and
4336 // why it is called here.
4337 p->initialize_queues();
4338 p->set_next(_thread_list);
4339 _thread_list = p;
4340
4341 // Once a JavaThread is added to the Threads list, smr_delete() has
4342 // to be used to delete it. Otherwise we can just delete it directly.
4343 p->set_on_thread_list();
4344
4345 _number_of_threads++;
4346 oop threadObj = p->threadObj();
4347 bool daemon = true;
4348 // Bootstrapping problem: threadObj can be null for initial
4349 // JavaThread (or for threads attached via JNI)
4350 if ((!force_daemon) && (threadObj == NULL || !java_lang_Thread::is_daemon(threadObj))) {
4351 _number_of_non_daemon_threads++;
4352 daemon = false;
4353 }
4354
4355 ThreadService::add_thread(p, daemon);
4356
4357 // Maintain fast thread list
|
1977 JNIHandleBlock::release_block(block);
1978 }
1979
1980 if (free_handle_block() != NULL) {
1981 JNIHandleBlock* block = free_handle_block();
1982 set_free_handle_block(NULL);
1983 JNIHandleBlock::release_block(block);
1984 }
1985
1986 // These have to be removed while this is still a valid thread.
1987 remove_stack_guard_pages();
1988
1989 if (UseTLAB) {
1990 tlab().make_parsable(true); // retire TLAB
1991 }
1992
1993 if (JvmtiEnv::environments_might_exist()) {
1994 JvmtiExport::cleanup_thread(this);
1995 }
1996
1997 BarrierSet::barrier_set()->on_thread_detach(this);
1998
1999 log_info(os, thread)("JavaThread %s (tid: " UINTX_FORMAT ").",
2000 exit_type == JavaThread::normal_exit ? "exiting" : "detaching",
2001 os::current_thread_id());
2002
2003 if (log_is_enabled(Debug, os, thread, timer)) {
2004 _timer_exit_phase3.stop();
2005 _timer_exit_phase4.start();
2006 }
2007 // Remove from list of active threads list, and notify VM thread if we are the last non-daemon thread
2008 Threads::remove(this);
2009
2010 if (log_is_enabled(Debug, os, thread, timer)) {
2011 _timer_exit_phase4.stop();
2012 ResourceMark rm(this);
2013 log_debug(os, thread, timer)("name='%s'"
2014 ", exit-phase1=" JLONG_FORMAT
2015 ", exit-phase2=" JLONG_FORMAT
2016 ", exit-phase3=" JLONG_FORMAT
2017 ", exit-phase4=" JLONG_FORMAT,
2018 get_thread_name(),
2019 _timer_exit_phase1.milliseconds(),
2020 _timer_exit_phase2.milliseconds(),
2021 _timer_exit_phase3.milliseconds(),
2022 _timer_exit_phase4.milliseconds());
2023 }
2024 }
2025
2026 void JavaThread::cleanup_failed_attach_current_thread() {
2027 if (active_handles() != NULL) {
2028 JNIHandleBlock* block = active_handles();
2029 set_active_handles(NULL);
2030 JNIHandleBlock::release_block(block);
2031 }
2032
2033 if (free_handle_block() != NULL) {
2034 JNIHandleBlock* block = free_handle_block();
2035 set_free_handle_block(NULL);
2036 JNIHandleBlock::release_block(block);
2037 }
2038
2039 // These have to be removed while this is still a valid thread.
2040 remove_stack_guard_pages();
2041
2042 if (UseTLAB) {
2043 tlab().make_parsable(true); // retire TLAB, if any
2044 }
2045
2046 BarrierSet::barrier_set()->on_thread_detach(this);
2047
2048 Threads::remove(this);
2049 this->smr_delete();
2050 }
2051
2052 JavaThread* JavaThread::active() {
2053 Thread* thread = Thread::current();
2054 if (thread->is_Java_thread()) {
2055 return (JavaThread*) thread;
2056 } else {
2057 assert(thread->is_VM_thread(), "this must be a vm thread");
2058 VM_Operation* op = ((VMThread*) thread)->vm_operation();
2059 JavaThread *ret=op == NULL ? NULL : (JavaThread *)op->calling_thread();
2060 assert(ret->is_Java_thread(), "must be a Java thread");
2061 return ret;
2062 }
2063 }
2064
2065 bool JavaThread::is_lock_owned(address adr) const {
2066 if (Thread::is_lock_owned(adr)) return true;
2067
2068 for (MonitorChunk* chunk = monitor_chunks(); chunk != NULL; chunk = chunk->next()) {
2069 if (chunk->contains(adr)) return true;
2070 }
2071
4285 if (version == JNI_VERSION_1_1) return JNI_TRUE;
4286 return is_supported_jni_version(version);
4287 }
4288
4289
4290 jboolean Threads::is_supported_jni_version(jint version) {
4291 if (version == JNI_VERSION_1_2) return JNI_TRUE;
4292 if (version == JNI_VERSION_1_4) return JNI_TRUE;
4293 if (version == JNI_VERSION_1_6) return JNI_TRUE;
4294 if (version == JNI_VERSION_1_8) return JNI_TRUE;
4295 if (version == JNI_VERSION_9) return JNI_TRUE;
4296 if (version == JNI_VERSION_10) return JNI_TRUE;
4297 return JNI_FALSE;
4298 }
4299
4300
4301 void Threads::add(JavaThread* p, bool force_daemon) {
4302 // The threads lock must be owned at this point
4303 assert_locked_or_safepoint(Threads_lock);
4304
4305 BarrierSet::barrier_set()->on_thread_attach(p);
4306
4307 p->set_next(_thread_list);
4308 _thread_list = p;
4309
4310 // Once a JavaThread is added to the Threads list, smr_delete() has
4311 // to be used to delete it. Otherwise we can just delete it directly.
4312 p->set_on_thread_list();
4313
4314 _number_of_threads++;
4315 oop threadObj = p->threadObj();
4316 bool daemon = true;
4317 // Bootstrapping problem: threadObj can be null for initial
4318 // JavaThread (or for threads attached via JNI)
4319 if ((!force_daemon) && (threadObj == NULL || !java_lang_Thread::is_daemon(threadObj))) {
4320 _number_of_non_daemon_threads++;
4321 daemon = false;
4322 }
4323
4324 ThreadService::add_thread(p, daemon);
4325
4326 // Maintain fast thread list
|