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/*
* Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Oracle nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "jni.h"
#include "jvmti.h"
#include "agent_util.h"
#include "Thread.hpp"
/* Implementation of the Thread class */
Thread::Thread(jvmtiEnv *jvmti, JNIEnv *env, jthread thread)
{
jvmtiError err;
jvmtiThreadInfo info;
/* Get and save the name of the thread */
info.name = NULL;
(void)strcpy(name, "Unknown");
err = jvmti->GetThreadInfo(thread, &info);
check_jvmti_error(jvmti, err, "get thread info");
if ( info.name != NULL ) {
(void)strncpy(name, info.name, (int)sizeof(name)-1);
name[(int)sizeof(name)-1] = 0;
deallocate(jvmti, info.name);
}
/* Clear thread counters */
contends = 0;
waits = 0;
timeouts = 0;
}
Thread::~Thread()
{
/* Send out summary message */
stdout_message("Thread %s summary: %d waits plus %d contended\n",
name, waits, contends);
}
void Thread::monitor_contended_enter(jvmtiEnv* jvmti, JNIEnv *env,
jthread thread, jobject object)
{
contends++;
}
void Thread::monitor_wait(jvmtiEnv* jvmti, JNIEnv *env,
jthread thread, jobject object, jlong timeout)
{
waits++;
}
void Thread::monitor_waited(jvmtiEnv* jvmti, JNIEnv *env,
jthread thread, jobject object, jboolean timed_out)
{
if ( timed_out ) {
timeouts++;
}
}
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