268 if (UsePerfData) {
269 // jvmstat performance counters
270 Thread* THREAD = Thread::current();
271 _perf_accumulated_vm_operation_time =
272 PerfDataManager::create_counter(SUN_THREADS, "vmOperationTime",
273 PerfData::U_Ticks, CHECK);
274 }
275 }
276
277 VMThread::VMThread() : NamedThread() {
278 set_name("VM Thread");
279 }
280
281 void VMThread::destroy() {
282 _vm_thread = NULL; // VM thread is gone
283 }
284
285 void VMThread::run() {
286 assert(this == vm_thread(), "check");
287
288 this->initialize_named_thread();
289
290 // Notify_lock wait checks on active_handles() to rewait in
291 // case of spurious wakeup, it should wait on the last
292 // value set prior to the notify
293 this->set_active_handles(JNIHandleBlock::allocate_block());
294
295 {
296 MutexLocker ml(Notify_lock);
297 Notify_lock->notify();
298 }
299 // Notify_lock is destroyed by Threads::create_vm()
300
301 int prio = (VMThreadPriority == -1)
302 ? os::java_to_os_priority[NearMaxPriority]
303 : VMThreadPriority;
304 // Note that I cannot call os::set_priority because it expects Java
305 // priorities and I am *explicitly* using OS priorities so that it's
306 // possible to set the VM thread priority higher than any Java thread.
307 os::set_native_priority( this, prio );
308
309 // Wait for VM_Operations until termination
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268 if (UsePerfData) {
269 // jvmstat performance counters
270 Thread* THREAD = Thread::current();
271 _perf_accumulated_vm_operation_time =
272 PerfDataManager::create_counter(SUN_THREADS, "vmOperationTime",
273 PerfData::U_Ticks, CHECK);
274 }
275 }
276
277 VMThread::VMThread() : NamedThread() {
278 set_name("VM Thread");
279 }
280
281 void VMThread::destroy() {
282 _vm_thread = NULL; // VM thread is gone
283 }
284
285 void VMThread::run() {
286 assert(this == vm_thread(), "check");
287
288 // Notify_lock wait checks on active_handles() to rewait in
289 // case of spurious wakeup, it should wait on the last
290 // value set prior to the notify
291 this->set_active_handles(JNIHandleBlock::allocate_block());
292
293 {
294 MutexLocker ml(Notify_lock);
295 Notify_lock->notify();
296 }
297 // Notify_lock is destroyed by Threads::create_vm()
298
299 int prio = (VMThreadPriority == -1)
300 ? os::java_to_os_priority[NearMaxPriority]
301 : VMThreadPriority;
302 // Note that I cannot call os::set_priority because it expects Java
303 // priorities and I am *explicitly* using OS priorities so that it's
304 // possible to set the VM thread priority higher than any Java thread.
305 os::set_native_priority( this, prio );
306
307 // Wait for VM_Operations until termination
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