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 #include "precompiled.hpp"
25 #include "gc/z/zHeap.inline.hpp"
26 #include "gc/z/zUncommitter.hpp"
27 #include "runtime/mutexLocker.hpp"
28 #include "runtime/os.hpp"
29
30 ZUncommitter::ZUncommitter() :
31 _monitor(Monitor::leaf, "ZUncommitter", false, Monitor::_safepoint_check_never),
32 _stop(false) {
33 set_name("ZUncommitter");
34 create_and_start();
35 }
36
37 bool ZUncommitter::idle(uint64_t timeout) {
38 // Idle for at least one second
39 const uint64_t expires = os::elapsedTime() + MAX2<uint64_t>(timeout, 1);
40
41 for (;;) {
42 // We might wake up spuriously from wait, so always recalculate
43 // the timeout after a wakeup to see if we need to wait again.
44 const uint64_t now = os::elapsedTime();
45 const uint64_t remaining = expires - MIN2(expires, now);
46
47 MonitorLocker ml(&_monitor, Monitor::_no_safepoint_check_flag);
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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 #include "precompiled.hpp"
25 #include "gc/z/zHeap.inline.hpp"
26 #include "gc/z/zUncommitter.hpp"
27 #include "runtime/mutexLocker.inline.hpp"
28 #include "runtime/os.hpp"
29
30 ZUncommitter::ZUncommitter() :
31 _monitor(Monitor::leaf, "ZUncommitter", false, Monitor::_safepoint_check_never),
32 _stop(false) {
33 set_name("ZUncommitter");
34 create_and_start();
35 }
36
37 bool ZUncommitter::idle(uint64_t timeout) {
38 // Idle for at least one second
39 const uint64_t expires = os::elapsedTime() + MAX2<uint64_t>(timeout, 1);
40
41 for (;;) {
42 // We might wake up spuriously from wait, so always recalculate
43 // the timeout after a wakeup to see if we need to wait again.
44 const uint64_t now = os::elapsedTime();
45 const uint64_t remaining = expires - MIN2(expires, now);
46
47 MonitorLocker ml(&_monitor, Monitor::_no_safepoint_check_flag);
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