| /* |
| * Copyright (c) 2018, 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. |
| */ |
| |
| |
| /* |
| * @test |
| * |
| * @summary converted from VM Testbase nsk/jvmti/GetThreadCpuTime/thrcputime002. |
| * VM Testbase keywords: [quick, jpda, jvmti, noras] |
| * VM Testbase readme: |
| * DESCRIPTION |
| * This JVMTI test exercises JVMTI thread function GetThreadCpuTime(). |
| * This test checks that GetThreadCpuTime() returns correct time value |
| * for either Java thread in debuggee class and agent thread itself. |
| * And this value is increased monotonically as each thread run some code. |
| * Function GetThreadCpuTime() is invoked either for current thread and |
| * for other thread, providing thread object in each case. |
| * Debuggee class runs special tested Java thread to generate THREAD_START |
| * and THREAD_END events. Only those events are considered which are |
| * for the thread with the expected name. |
| * The following checks are performed for GetThreadCpuTime(): |
| * for initial thread: |
| * - in VM_INIT event callback (initial) |
| * for agent thread: |
| * - at the begin of agent thread (initial) |
| * - in THREAD_START event callback of tested Java thread |
| * - between THREAD_START and THREAD_END events |
| * - in THREAD_END event callback of tested Java thread |
| * - at the end of agent thread |
| * for tested Java thread: |
| * - in THREAD_START event callback (initial) |
| * - between THREAD_START and THREAD_END events from agent thread |
| * - in THREAD_END event callback |
| * In initial check for each thread GetThreadCpuTime() is called |
| * and returned cpu time is saved in corresponding variable. |
| * If this time is negative, then thye chack fails. |
| * If this tuime is zero, then warning message is printed, |
| * but the test passes. |
| * In further checks for each thread GetThreadCpuTime() is called |
| * and returned cpu time is compared with previous value. |
| * If newly returned cpu time is not greated than previously |
| * saved one, the check fails. |
| * Before each futher check each thread calls doIteration() function |
| * to run some code in a loop, to ensure the cpu time for tested |
| * thread is valuable increased. Particular number of iterations |
| * is configured with agent option 'iterations=<number>'. |
| * If all checks are successful, then test pases with exit status 95. |
| * If any check fails or other error occurs, then agent sets FAIL status |
| * and the test fails with exit status 97. |
| * If the last check (in VM_DEATH callback) fails, then C-language exit() |
| * function is used to force VM exit with fail status 97. |
| * COMMENTS |
| * Fixed the 4968019, 5006885 bugs. |
| * Fixed the 5010142 bug. |
| * |
| * @library /vmTestbase |
| * /test/lib |
| * @run driver jdk.test.lib.FileInstaller . . |
| * @build ExecDriver |
| * nsk.jvmti.GetThreadCpuTime.thrcputime002 |
| * @run main/othervm/native PropertyResolvingWrapper ExecDriver --java |
| * "-agentlib:thrcputime002=-waittime=5 iterations=1000" |
| * nsk.jvmti.GetThreadCpuTime.thrcputime002 |
| */ |
| |
