32 #include "runtime/javaCalls.hpp"
33 #include "runtime/os.hpp"
34
35 ConcurrentGCThread::ConcurrentGCThread() :
36 _should_terminate(false), _has_terminated(false) {
37 };
38
39 void ConcurrentGCThread::create_and_start(ThreadPriority prio) {
40 if (os::create_thread(this, os::cgc_thread)) {
41 // XXX: need to set this to low priority
42 // unless "aggressive mode" set; priority
43 // should be just less than that of VMThread.
44 os::set_priority(this, prio);
45 if (!_should_terminate) {
46 os::start_thread(this);
47 }
48 }
49 }
50
51 void ConcurrentGCThread::initialize_in_thread() {
52 this->record_stack_base_and_size();
53 this->initialize_named_thread();
54 this->set_active_handles(JNIHandleBlock::allocate_block());
55 // From this time Thread::current() should be working.
56 assert(this == Thread::current(), "just checking");
57 }
58
59 void ConcurrentGCThread::wait_for_universe_init() {
60 MutexLockerEx x(CGC_lock, Mutex::_no_safepoint_check_flag);
61 while (!is_init_completed() && !_should_terminate) {
62 CGC_lock->wait(Mutex::_no_safepoint_check_flag, 1);
63 }
64 }
65
66 void ConcurrentGCThread::terminate() {
67 assert(_should_terminate, "Should only be called on terminate request.");
68 // Signal that it is terminated
69 {
70 MutexLockerEx mu(Terminator_lock,
71 Mutex::_no_safepoint_check_flag);
72 _has_terminated = true;
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32 #include "runtime/javaCalls.hpp"
33 #include "runtime/os.hpp"
34
35 ConcurrentGCThread::ConcurrentGCThread() :
36 _should_terminate(false), _has_terminated(false) {
37 };
38
39 void ConcurrentGCThread::create_and_start(ThreadPriority prio) {
40 if (os::create_thread(this, os::cgc_thread)) {
41 // XXX: need to set this to low priority
42 // unless "aggressive mode" set; priority
43 // should be just less than that of VMThread.
44 os::set_priority(this, prio);
45 if (!_should_terminate) {
46 os::start_thread(this);
47 }
48 }
49 }
50
51 void ConcurrentGCThread::initialize_in_thread() {
52 this->initialize_named_thread();
53 this->set_active_handles(JNIHandleBlock::allocate_block());
54 // From this time Thread::current() should be working.
55 assert(this == Thread::current(), "just checking");
56 }
57
58 void ConcurrentGCThread::wait_for_universe_init() {
59 MutexLockerEx x(CGC_lock, Mutex::_no_safepoint_check_flag);
60 while (!is_init_completed() && !_should_terminate) {
61 CGC_lock->wait(Mutex::_no_safepoint_check_flag, 1);
62 }
63 }
64
65 void ConcurrentGCThread::terminate() {
66 assert(_should_terminate, "Should only be called on terminate request.");
67 // Signal that it is terminated
68 {
69 MutexLockerEx mu(Terminator_lock,
70 Mutex::_no_safepoint_check_flag);
71 _has_terminated = true;
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