/* * Copyright (c) 2019, 2021, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions.
*/
// The test doesn't work for PRODUCT because it needs WizardMode #ifndef PRODUCT staticbool test_pattern(stringStream* st, constchar* pattern) { return (strstr(st->as_string(), pattern) != NULL);
}
// Wait gets the lock inflated. // The object will stay locked for the context of 'ol' so the lock will // still be inflated after the notify_all() call. Deflation can't happen // while an ObjectMonitor is "busy" and being locked is the most "busy" // state we have...
ObjectLocker ol(h_obj, THREAD);
ol.notify_all(THREAD);
assert_test_pattern(h_obj, "monitor");
}
};
// Thread tries to lock it.
{
ObjectLocker ol(h_obj, THREAD);
assert_test_pattern(h_obj, "locked");
}
assert_test_pattern(h_obj, "is_neutral no_hash");
// Hash the object then print it.
intx hash = h_obj->identity_hash();
assert_test_pattern(h_obj, "is_neutral hash=0x");
// Wait gets the lock inflated.
{
ObjectLocker ol(h_obj, THREAD);
Semaphore done(0);
LockerThread* st;
st = new LockerThread(&done, h_obj());
st->doit();
ol.wait(THREAD);
assert_test_pattern(h_obj, "monitor");
done.wait_with_safepoint_check(THREAD); // wait till the thread is done.
}
} #endif// PRODUCT
Messung V0.5 in Prozent
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(vorverarbeitet am 2026-04-26)
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Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.