6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "memory/gcLocker.inline.hpp"
27 #include "memory/resourceArea.hpp"
28 #include "memory/sharedHeap.hpp"
29 #include "runtime/atomic.inline.hpp"
30 #include "runtime/thread.inline.hpp"
31
32 volatile jint GC_locker::_jni_lock_count = 0;
33 volatile bool GC_locker::_needs_gc = false;
34 volatile bool GC_locker::_doing_gc = false;
35
36 #ifdef ASSERT
37 volatile jint GC_locker::_debug_jni_lock_count = 0;
38 #endif
39
40
41 #ifdef ASSERT
42 void GC_locker::verify_critical_count() {
43 if (SafepointSynchronize::is_at_safepoint()) {
44 assert(!needs_gc() || _debug_jni_lock_count == _jni_lock_count, "must agree");
45 int count = 0;
46 // Count the number of threads with critical operations in progress
47 for (JavaThread* thr = Threads::first(); thr; thr = thr->next()) {
48 if (thr->in_critical()) {
|
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "gc_interface/collectedHeap.hpp"
27 #include "memory/gcLocker.inline.hpp"
28 #include "memory/resourceArea.hpp"
29 #include "runtime/atomic.inline.hpp"
30 #include "runtime/thread.inline.hpp"
31
32 volatile jint GC_locker::_jni_lock_count = 0;
33 volatile bool GC_locker::_needs_gc = false;
34 volatile bool GC_locker::_doing_gc = false;
35
36 #ifdef ASSERT
37 volatile jint GC_locker::_debug_jni_lock_count = 0;
38 #endif
39
40
41 #ifdef ASSERT
42 void GC_locker::verify_critical_count() {
43 if (SafepointSynchronize::is_at_safepoint()) {
44 assert(!needs_gc() || _debug_jni_lock_count == _jni_lock_count, "must agree");
45 int count = 0;
46 // Count the number of threads with critical operations in progress
47 for (JavaThread* thr = Threads::first(); thr; thr = thr->next()) {
48 if (thr->in_critical()) {
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