/**
* Set whether the receiver's {@link #dequeue(long)} method should return query operations.
*
* @param processQueries <code>true</code> if the receiver's {@link #dequeue(long)} method should
* return query operations or <code>false</code> if query operations should be queued but not
* returned by the receiver's {@link #dequeue(long)} method until this method is called with a
* value of <code>true</code>.
*/
public void setProcessQueries(boolean processQueries) {
synchronized (nonQueryOperations) {
if (this.processQueries != processQueries) {
this.processQueries = processQueries;
if (processQueries && !queryOperations.isEmpty()) {
nonQueryOperations.notifyAll();
}
}
}
}
/** Removes a connection */
void removeItem(ManagedPoolItem item, ManagedConnection mConn) {
synchronized (_connectionPool) {
_idlePool.remove(mConn);
_connectionPool.remove(item);
_connectionPool.notifyAll();
}
try {
item.destroy();
} catch (Exception e) {
log.log(Level.WARNING, e.toString(), e);
}
}
public void end() {
done = true;
printStatistics();
this.interrupt();
synchronized (workerThreads) {
workToDo.clear();
workerThreads.notifyAll();
}
for (int i = 0; i < workerThreads.size(); i++) {
((WorkerThread) workerThreads.get(i)).done();
}
}
/**
* Add the given operation to the tail of this queue.
*
* @param operation the operation to be added to the queue
*/
public void enqueue(IndexOperation operation) {
synchronized (nonQueryOperations) {
if (operation instanceof RemoveResourceOperation) {
Resource resource = ((RemoveResourceOperation) operation).getResource();
for (int i = nonQueryOperations.size() - 1; i >= 0; i--) {
if (nonQueryOperations.get(i).removeWhenResourceRemoved(resource)) {
nonQueryOperations.remove(i);
}
}
for (int i = queryOperations.size() - 1; i >= 0; i--) {
if (queryOperations.get(i).removeWhenResourceRemoved(resource)) {
queryOperations.remove(i);
}
}
}
if (operation.isQuery()) {
queryOperations.add(operation);
} else {
nonQueryOperations.add(operation);
}
nonQueryOperations.notifyAll();
}
}
// Reads a single packet from the connection, adding it to the packet
// queue when a complete packet is ready.
private void _readOnePacket() throws IOException {
byte[] data = null;
// Read in the packet
int length = _inStream.readInt();
if (length < 11) {
throw new IOException("JDWP packet length < 11 (" + length + ")");
}
data = new byte[length];
data[0] = (byte) (length >>> 24);
data[1] = (byte) (length >>> 16);
data[2] = (byte) (length >>> 8);
data[3] = (byte) length;
_inStream.readFully(data, 4, length - 4);
JdwpPacket packet = JdwpPacket.fromBytes(data);
if (packet != null) {
synchronized (_commandQueue) {
_commandQueue.add(packet);
_commandQueue.notifyAll();
}
}
}
public static void main(String args[]) throws Exception {
is_64_bit_system = (Platform.is64bit());
OutputAnalyzer output;
whiteBox = WhiteBox.getWhiteBox();
// Grab my own PID
String pid = Integer.toString(ProcessTools.getProcessId());
ProcessBuilder pb = new ProcessBuilder();
AllocThread[] alloc_threads = new AllocThread[256];
ReleaseThread[] release_threads = new ReleaseThread[64];
int index;
// Create many allocation threads
for (index = 0; index < alloc_threads.length; index++) {
alloc_threads[index] = new AllocThread();
}
// Fewer release threads
for (index = 0; index < release_threads.length; index++) {
release_threads[index] = new ReleaseThread();
}
if (is_64_bit_system()) {
sleep_wait(2 * 60 * 1000);
} else {
sleep_wait(60 * 1000);
}
// pause the stress test
phase = TestPhase.pause;
while (pause_count.intValue() < alloc_threads.length + release_threads.length) {
sleep_wait(10);
}
long mallocd_total_in_KB = (mallocd_total + K / 2) / K;
// Now check if the result from NMT matches the total memory allocated.
String expected_test_summary =
"Test (reserved=" + mallocd_total_in_KB + "KB, committed=" + mallocd_total_in_KB + "KB)";
// Run 'jcmd <pid> VM.native_memory summary'
pb.command(new String[] {JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary"});
output = new OutputAnalyzer(pb.start());
output.shouldContain(expected_test_summary);
// Release all allocated memory
phase = TestPhase.release;
synchronized (mallocd_memory) {
mallocd_memory.notifyAll();
}
// Join all threads
for (index = 0; index < alloc_threads.length; index++) {
try {
alloc_threads[index].join();
} catch (InterruptedException e) {
}
}
for (index = 0; index < release_threads.length; index++) {
try {
release_threads[index].join();
} catch (InterruptedException e) {
}
}
// All test memory allocated should be released
output = new OutputAnalyzer(pb.start());
output.shouldNotContain("Test (reserved=");
// Verify that tracking level has not been downgraded
pb.command(
new String[] {JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "statistics"});
output = new OutputAnalyzer(pb.start());
output.shouldNotContain("Tracking level has been downgraded due to lack of resources");
}