82 lines
3.7 KiB
Java
82 lines
3.7 KiB
Java
/*
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* Copyright (c) 2018, 2020, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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*
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* @summary converted from VM Testbase nsk/jvmti/GetThreadCpuTime/thrcputime001.
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* VM Testbase keywords: [quick, jpda, jvmti, noras]
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* VM Testbase readme:
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* DESCRIPTION
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* This JVMTI test exercises JVMTI thread function GetThreadCpuTime().
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* This test checks that GetThreadCpuTime() returns correct time value
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* for either Java thread in debuggee class and agent thread itself.
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* And this value is increased monotonically as each thread run some code.
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* Function GetThreadCpuTime() is invoked only for current thread
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* passing NULL instead of thread object.
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* Debuggee class runs special tested Java thread to generate THREAD_START
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* and THREAD_END events. Only those events are considered which are
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* for the thread with the expected name.
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* The following checks are performed for GetThreadCpuTime():
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* for initial thread:
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* - in VM_INIT event callback (initial)
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* for agent thread:
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* - at the begin of agent thread (initial)
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* - between THREAD_START and THREAD_END events
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* - at the end of agent thread
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* for tested Java thread:
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* - in THREAD_START event callback (initial)
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* - in THREAD_END event callback
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* for terminating thread:
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* - in VM_DEATH event callback (initial)
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* In initial check for each thread GetThreadCpuTime() is called
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* and returned cpu time is saved in corresponding variable.
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* If this time is negative, then thye chack fails.
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* If this tuime is zero, then warning message is printed,
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* but the test passes.
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* In further checks for each thread GetThreadCpuTime() is called
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* and returned cpu time is compared with previous value.
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* If newly returned cpu time is not greated than previously
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* saved one, the check fails.
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* Before each futher check each thread calls doIteration() function
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* to run some code in a loop, to ensure the cpu time for tested
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* thread is valuable increased. Particular number of iterations
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* is configured with agent option 'iterations=<number>'.
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* If all checks are successful, then test pases with exit status 95.
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* If any check fails or other error occurs, then agent sets FAIL status
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* and the test fails with exit status 97.
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* If the last check (in VM_DEATH callback) fails, then C-language exit()
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* function is used to force VM exit with fail status 97.
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* COMMENTS
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* Fixed the 4968019, 5006885 bugs.
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*
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* @library /vmTestbase
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* /test/lib
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* @build nsk.jvmti.GetThreadCpuTime.thrcputime001
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* @run main/othervm/native
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* -agentlib:thrcputime001=-waittime=5,iterations=1000
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* nsk.jvmti.GetThreadCpuTime.thrcputime001
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*/
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