34 volatile bool GCLocker::_needs_gc = false;
35 volatile bool GCLocker::_doing_gc = false;
36
37 #ifdef ASSERT
38 volatile jint GCLocker::_debug_jni_lock_count = 0;
39 #endif
40
41
42 #ifdef ASSERT
43 void GCLocker::verify_critical_count() {
44 if (SafepointSynchronize::is_at_safepoint()) {
45 assert(!needs_gc() || _debug_jni_lock_count == _jni_lock_count, "must agree");
46 int count = 0;
47 // Count the number of threads with critical operations in progress
48 for (JavaThread* thr = Threads::first(); thr; thr = thr->next()) {
49 if (thr->in_critical()) {
50 count++;
51 }
52 }
53 if (_jni_lock_count != count) {
54 tty->print_cr("critical counts don't match: %d != %d", _jni_lock_count, count);
55 for (JavaThread* thr = Threads::first(); thr; thr = thr->next()) {
56 if (thr->in_critical()) {
57 tty->print_cr(INTPTR_FORMAT " in_critical %d", p2i(thr), thr->in_critical());
58 }
59 }
60 }
61 assert(_jni_lock_count == count, "must be equal");
62 }
63 }
64
65 // In debug mode track the locking state at all times
66 void GCLocker::increment_debug_jni_lock_count() {
67 assert(_debug_jni_lock_count >= 0, "bad value");
68 Atomic::inc(&_debug_jni_lock_count);
69 }
70
71 void GCLocker::decrement_debug_jni_lock_count() {
72 assert(_debug_jni_lock_count > 0, "bad value");
73 Atomic::dec(&_debug_jni_lock_count);
74 }
75 #endif
76
77 void GCLocker::log_debug_jni(const char* msg) {
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34 volatile bool GCLocker::_needs_gc = false;
35 volatile bool GCLocker::_doing_gc = false;
36
37 #ifdef ASSERT
38 volatile jint GCLocker::_debug_jni_lock_count = 0;
39 #endif
40
41
42 #ifdef ASSERT
43 void GCLocker::verify_critical_count() {
44 if (SafepointSynchronize::is_at_safepoint()) {
45 assert(!needs_gc() || _debug_jni_lock_count == _jni_lock_count, "must agree");
46 int count = 0;
47 // Count the number of threads with critical operations in progress
48 for (JavaThread* thr = Threads::first(); thr; thr = thr->next()) {
49 if (thr->in_critical()) {
50 count++;
51 }
52 }
53 if (_jni_lock_count != count) {
54 log_error(gc, verify)("critical counts don't match: %d != %d", _jni_lock_count, count);
55 for (JavaThread* thr = Threads::first(); thr; thr = thr->next()) {
56 if (thr->in_critical()) {
57 log_error(gc, verify)(INTPTR_FORMAT " in_critical %d", p2i(thr), thr->in_critical());
58 }
59 }
60 }
61 assert(_jni_lock_count == count, "must be equal");
62 }
63 }
64
65 // In debug mode track the locking state at all times
66 void GCLocker::increment_debug_jni_lock_count() {
67 assert(_debug_jni_lock_count >= 0, "bad value");
68 Atomic::inc(&_debug_jni_lock_count);
69 }
70
71 void GCLocker::decrement_debug_jni_lock_count() {
72 assert(_debug_jni_lock_count > 0, "bad value");
73 Atomic::dec(&_debug_jni_lock_count);
74 }
75 #endif
76
77 void GCLocker::log_debug_jni(const char* msg) {
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