--- a/jdk/src/share/classes/sun/management/ThreadImpl.java Thu Jan 20 15:23:57 2011 +0000
+++ b/jdk/src/share/classes/sun/management/ThreadImpl.java Thu Jan 20 19:34:40 2011 -0500
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2003, 2008, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2011, 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
@@ -25,7 +25,6 @@
package sun.management;
-import java.lang.management.ThreadMXBean;
import java.lang.management.ManagementFactory;
import java.lang.management.ThreadInfo;
@@ -39,13 +38,14 @@
* ManagementFactory.getThreadMXBean() returns an instance
* of this class.
*/
-class ThreadImpl implements ThreadMXBean {
+class ThreadImpl implements com.sun.management.ThreadMXBean {
private final VMManagement jvm;
// default for thread contention monitoring is disabled.
private boolean contentionMonitoringEnabled = false;
private boolean cpuTimeEnabled;
+ private boolean allocatedMemoryEnabled;
/**
* Constructor of ThreadImpl class.
@@ -53,6 +53,7 @@
ThreadImpl(VMManagement vm) {
this.jvm = vm;
this.cpuTimeEnabled = jvm.isThreadCpuTimeEnabled();
+ this.allocatedMemoryEnabled = jvm.isThreadAllocatedMemoryEnabled();
}
public int getThreadCount() {
@@ -91,6 +92,10 @@
return jvm.isCurrentThreadCpuTimeSupported();
}
+ public boolean isThreadAllocatedMemorySupported() {
+ return jvm.isThreadAllocatedMemorySupported();
+ }
+
public boolean isThreadCpuTimeEnabled() {
if (!isThreadCpuTimeSupported() &&
!isCurrentThreadCpuTimeSupported()) {
@@ -100,6 +105,14 @@
return cpuTimeEnabled;
}
+ public boolean isThreadAllocatedMemoryEnabled() {
+ if (!isThreadAllocatedMemorySupported()) {
+ throw new UnsupportedOperationException(
+ "Thread allocated memory measurement is not supported");
+ }
+ return allocatedMemoryEnabled;
+ }
+
public long[] getAllThreadIds() {
Util.checkMonitorAccess();
@@ -114,11 +127,6 @@
}
public ThreadInfo getThreadInfo(long id) {
- if (id <= 0) {
- throw new IllegalArgumentException(
- "Invalid thread ID parameter: " + id);
- }
-
long[] ids = new long[1];
ids[0] = id;
final ThreadInfo[] infos = getThreadInfo(ids, 0);
@@ -126,15 +134,6 @@
}
public ThreadInfo getThreadInfo(long id, int maxDepth) {
- if (id <= 0) {
- throw new IllegalArgumentException(
- "Invalid thread ID parameter: " + id);
- }
- if (maxDepth < 0) {
- throw new IllegalArgumentException(
- "Invalid maxDepth parameter: " + maxDepth);
- }
-
long[] ids = new long[1];
ids[0] = id;
final ThreadInfo[] infos = getThreadInfo(ids, maxDepth);
@@ -145,11 +144,22 @@
return getThreadInfo(ids, 0);
}
- public ThreadInfo[] getThreadInfo(long[] ids, int maxDepth) {
+ private void verifyThreadIds(long[] ids) {
if (ids == null) {
throw new NullPointerException("Null ids parameter.");
}
+ for (int i = 0; i < ids.length; i++) {
+ if (ids[i] <= 0) {
+ throw new IllegalArgumentException(
+ "Invalid thread ID parameter: " + ids[i]);
+ }
+ }
+ }
+
+ public ThreadInfo[] getThreadInfo(long[] ids, int maxDepth) {
+ verifyThreadIds(ids);
+
if (maxDepth < 0) {
throw new IllegalArgumentException(
"Invalid maxDepth parameter: " + maxDepth);
@@ -157,17 +167,15 @@
Util.checkMonitorAccess();
- ThreadInfo[] infos = new ThreadInfo[ids.length];
+ ThreadInfo[] infos = new ThreadInfo[ids.length]; // nulls
if (maxDepth == Integer.MAX_VALUE) {
- getThreadInfo0(ids, -1, infos);
+ getThreadInfo1(ids, -1, infos);
} else {
- getThreadInfo0(ids, maxDepth, infos);
+ getThreadInfo1(ids, maxDepth, infos);
}
return infos;
}
-
-
public void setThreadContentionMonitoringEnabled(boolean enable) {
if (!isThreadContentionMonitoringSupported()) {
throw new UnsupportedOperationException(
@@ -192,69 +200,32 @@
}
}
- public long getCurrentThreadCpuTime() {
+ private boolean verifyCurrentThreadCpuTime() {
// check if Thread CPU time measurement is supported.
if (!isCurrentThreadCpuTimeSupported()) {
throw new UnsupportedOperationException(
"Current thread CPU time measurement is not supported.");
}
+ return isThreadCpuTimeEnabled();
+ }
- if (!isThreadCpuTimeEnabled()) {
- return -1;
+ public long getCurrentThreadCpuTime() {
+ if (verifyCurrentThreadCpuTime()) {
+ return getThreadTotalCpuTime0(0);
}
-
- return getThreadTotalCpuTime0(0);
+ return -1;
}
public long getThreadCpuTime(long id) {
- // check if Thread CPU time measurement is supported.
- if (!isThreadCpuTimeSupported() &&
- !isCurrentThreadCpuTimeSupported()) {
- throw new UnsupportedOperationException(
- "Thread CPU Time Measurement is not supported.");
- }
-
- if (!isThreadCpuTimeSupported()) {
- // support current thread only
- if (id != Thread.currentThread().getId()) {
- throw new UnsupportedOperationException(
- "Thread CPU Time Measurement is only supported" +
- " for the current thread.");
- }
- }
-
- if (id <= 0) {
- throw new IllegalArgumentException(
- "Invalid thread ID parameter: " + id);
- }
-
- if (!isThreadCpuTimeEnabled()) {
- return -1;
- }
-
- if (id == Thread.currentThread().getId()) {
- // current thread
- return getThreadTotalCpuTime0(0);
- } else {
- return getThreadTotalCpuTime0(id);
- }
+ long[] ids = new long[1];
+ ids[0] = id;
+ final long[] times = getThreadCpuTime(ids);
+ return times[0];
}
- public long getCurrentThreadUserTime() {
- // check if Thread CPU time measurement is supported.
- if (!isCurrentThreadCpuTimeSupported()) {
- throw new UnsupportedOperationException(
- "Current thread CPU time measurement is not supported.");
- }
+ private boolean verifyThreadCpuTime(long[] ids) {
+ verifyThreadIds(ids);
- if (!isThreadCpuTimeEnabled()) {
- return -1;
- }
-
- return getThreadUserCpuTime0(0);
- }
-
- public long getThreadUserTime(long id) {
// check if Thread CPU time measurement is supported.
if (!isThreadCpuTimeSupported() &&
!isCurrentThreadCpuTimeSupported()) {
@@ -264,30 +235,71 @@
if (!isThreadCpuTimeSupported()) {
// support current thread only
- if (id != Thread.currentThread().getId()) {
- throw new UnsupportedOperationException(
- "Thread CPU time measurement is only supported" +
- " for the current thread.");
+ for (int i = 0; i < ids.length; i++) {
+ if (ids[i] != Thread.currentThread().getId()) {
+ throw new UnsupportedOperationException(
+ "Thread CPU time measurement is only supported" +
+ " for the current thread.");
+ }
}
}
- if (id <= 0) {
- throw new IllegalArgumentException(
- "Invalid thread ID parameter: " + id);
- }
+ return isThreadCpuTimeEnabled();
+ }
+
+ public long[] getThreadCpuTime(long[] ids) {
+ boolean verified = verifyThreadCpuTime(ids);
+
+ int length = ids.length;
+ long[] times = java.util.Arrays.fill(new long[length], -1);
- if (!isThreadCpuTimeEnabled()) {
- return -1;
+ if (verified) {
+ if (length == 1) {
+ long id = ids[0];
+ if (id == Thread.currentThread().getId()) {
+ id = 0;
+ }
+ getThreadTotalCpuTime0(id);
+ } else {
+ getThreadTotalCpuTime1(ids, times);
+ }
}
-
- if (id == Thread.currentThread().getId()) {
- // current thread
- return getThreadUserCpuTime0(0);
- } else {
- return getThreadUserCpuTime0(id);
- }
+ return times;
}
+ public long getCurrentThreadUserTime() {
+ if (verifyCurrentThreadCpuTime()) {
+ return getThreadUserCpuTime0(0);
+ }
+ return -1;
+ }
+
+ public long getThreadUserTime(long id) {
+ long[] ids = new long[1];
+ ids[0] = id;
+ final long[] times = getThreadUserTime(ids);
+ return times[0];
+ }
+
+ public long[] getThreadUserTime(long[] ids) {
+ boolean verified = verifyThreadCpuTime(ids);
+
+ int length = ids.length;
+ long[] times = java.util.Arrays.fill(new long[length], -1);
+
+ if (verified) {
+ if (length == 1) {
+ long id = ids[0];
+ if (id == Thread.currentThread().getId()) {
+ id = 0;
+ }
+ times[0] = getThreadUserCpuTime0(id);
+ } else {
+ getThreadUserCpuTime1(ids, times);
+ }
+ }
+ return times;
+ }
public void setThreadCpuTimeEnabled(boolean enable) {
if (!isThreadCpuTimeSupported() &&
@@ -299,13 +311,59 @@
Util.checkControlAccess();
synchronized (this) {
if (cpuTimeEnabled != enable) {
- // update VM of the state change
+ // notify VM of the state change
setThreadCpuTimeEnabled0(enable);
cpuTimeEnabled = enable;
}
}
}
+ public long getThreadAllocatedBytes(long id) {
+ long[] ids = new long[1];
+ ids[0] = id;
+ final long[] sizes = getThreadAllocatedBytes(ids);
+ return sizes[0];
+ }
+
+ private boolean verifyThreadAllocatedMemory(long[] ids) {
+ verifyThreadIds(ids);
+
+ // check if Thread allocated memory measurement is supported.
+ if (!isThreadAllocatedMemorySupported()) {
+ throw new UnsupportedOperationException(
+ "Thread allocated memory measurement is not supported.");
+ }
+
+ return isThreadAllocatedMemoryEnabled();
+ }
+
+ public long[] getThreadAllocatedBytes(long[] ids) {
+ boolean verified = verifyThreadAllocatedMemory(ids);
+
+ long[] times = java.util.Arrays.fill(new long[length], -1);
+
+ if (verified) {
+ getThreadAllocatedMemory1(ids, sizes);
+ }
+ return sizes;
+ }
+
+ public void setThreadAllocatedMemoryEnabled(boolean enable) {
+ if (!isThreadAllocatedMemorySupported()) {
+ throw new UnsupportedOperationException(
+ "Thread allocated memory measurement is not supported.");
+ }
+
+ Util.checkControlAccess();
+ synchronized (this) {
+ if (allocatedMemoryEnabled != enable) {
+ // notify VM of the state change
+ setThreadAllocatedMemoryEnabled0(enable);
+ allocatedMemoryEnabled = enable;
+ }
+ }
+ }
+
public long[] findMonitorDeadlockedThreads() {
Util.checkMonitorAccess();
@@ -356,49 +414,47 @@
return jvm.isSynchronizerUsageSupported();
}
- public ThreadInfo[] getThreadInfo(long[] ids,
- boolean lockedMonitors,
- boolean lockedSynchronizers) {
- if (ids == null) {
- throw new NullPointerException("Null ids parameter.");
- }
-
+ private void verifyDumpThreads(boolean lockedMonitors,
+ boolean lockedSynchronizers) {
if (lockedMonitors && !isObjectMonitorUsageSupported()) {
throw new UnsupportedOperationException(
"Monitoring of Object Monitor Usage is not supported.");
}
+
if (lockedSynchronizers && !isSynchronizerUsageSupported()) {
throw new UnsupportedOperationException(
"Monitoring of Synchronizer Usage is not supported.");
}
Util.checkMonitorAccess();
+ }
+
+ public ThreadInfo[] getThreadInfo(long[] ids,
+ boolean lockedMonitors,
+ boolean lockedSynchronizers) {
+ verifyThreadIds(ids);
+ verifyDumpThreads(lockedMonitors, lockedSynchronizers);
return dumpThreads0(ids, lockedMonitors, lockedSynchronizers);
}
-
- public ThreadInfo[] dumpAllThreads(boolean lockedMonitors, boolean lockedSynchronizers) {
- if (lockedMonitors && !isObjectMonitorUsageSupported()) {
- throw new UnsupportedOperationException(
- "Monitoring of Object Monitor Usage is not supported.");
- }
- if (lockedSynchronizers && !isSynchronizerUsageSupported()) {
- throw new UnsupportedOperationException(
- "Monitoring of Synchronizer Usage is not supported.");
- }
-
- Util.checkMonitorAccess();
+ public ThreadInfo[] dumpAllThreads(boolean lockedMonitors,
+ boolean lockedSynchronizers) {
+ verifyDumpThreads(lockedMonitors, lockedSynchronizers);
return dumpThreads0(null, lockedMonitors, lockedSynchronizers);
}
// VM support where maxDepth == -1 to request entire stack dump
private static native Thread[] getThreads();
- private static native void getThreadInfo0(long[] ids,
+ private static native void getThreadInfo1(long[] ids,
int maxDepth,
ThreadInfo[] result);
private static native long getThreadTotalCpuTime0(long id);
+ private static native void getThreadTotalCpuTime1(long[] ids, long[] result);
private static native long getThreadUserCpuTime0(long id);
+ private static native void getThreadUserCpuTime1(long[] ids, long[] result);
+ private static native void getThreadAllocatedMemory1(long[] ids, long[] result);
private static native void setThreadCpuTimeEnabled0(boolean enable);
+ private static native void setThreadAllocatedMemoryEnabled0(boolean enable);
private static native void setThreadContentionMonitoringEnabled0(boolean enable);
private static native Thread[] findMonitorDeadlockedThreads0();
private static native Thread[] findDeadlockedThreads0();