Examples with J9ContendedLoadTableEntryPointer com.ibm.j9ddr.vm29.pointer.generated.J9ContendedLoadTableEntryPointer used on opensource projects

Example 1 with J9ContendedLoadTableEntryPointer

use of com.ibm.j9ddr.vm29.pointer.generated.J9ContendedLoadTableEntryPointer in project openj9 by eclipse.

the class DumpContendedLoadTable method run.

public void run(String command, String[] args, Context context, PrintStream out) throws DDRInteractiveCommandException {
    if (0 != args.length) {
        String argument = args[0];
        if (argument.equalsIgnoreCase("help")) {
            help(out);
            return;
        }
    }
    try {
        J9JavaVMPointer javaVM = J9RASHelper.getVM(DataType.getJ9RASPointer());
        J9HashTablePointer contTable = javaVM.contendedLoadTable();
        J9PoolPointer poolPtr = contTable.listNodePool();
        Pool<J9ContendedLoadTableEntryPointer> pool = Pool.fromJ9Pool(poolPtr, J9ContendedLoadTableEntryPointer.class);
        SlotIterator<J9ContendedLoadTableEntryPointer> poolIterator = pool.iterator();
        if (poolIterator.hasNext()) {
            out.println("Active class loads:");
            while (poolIterator.hasNext()) {
                J9ContendedLoadTableEntryPointer entryPointer = poolIterator.next();
                String ldStatus = loadingStatusValues.get(entryPointer.status().longValue());
                if (null == ldStatus) {
                    ldStatus = "ILLEGAL VALUE: " + entryPointer.status();
                }
                J9VMThreadPointer loadingThread = entryPointer.thread();
                out.print(String.format("\tClassname: %s;\n\t\tLoader:  %s; Loading thread: %s %s\n\t\tStatus: %s; Table entry hash 0x%X\n", entryPointer.className().getCStringAtOffset(0, entryPointer.classNameLength().longValue()), entryPointer.classLoader().formatShortInteractive(), J9VMThreadHelper.getName(loadingThread), loadingThread.formatShortInteractive(), ldStatus, entryPointer.hashValue().longValue()));
            }
            MonitorIterator iterator = new MonitorIterator(javaVM);
            while (iterator.hasNext()) {
                Object current = iterator.next();
                if (current instanceof J9ThreadMonitorPointer) {
                    // System Monitor
                    SystemMonitor monitor = SystemMonitor.fromJ9ThreadMonitor((J9ThreadMonitorPointer) current);
                    final String monitorName = monitor.getName();
                    if (monitorName.matches(".*VM class table.*")) {
                        List<J9ThreadPointer> waitingThreads = monitor.getWaitingThreads();
                        if (!waitingThreads.isEmpty()) {
                            out.print("Waiting threads:\n");
                            for (J9ThreadPointer tp : waitingThreads) {
                                J9VMThreadPointer vmThread = J9ThreadHelper.getVMThread(tp);
                                if (vmThread.notNull()) {
                                    out.print(String.format("\t%s\t%s\n", vmThread.formatShortInteractive(), J9VMThreadHelper.getName(vmThread)));
                                } else {
                                    out.print(String.format("\t%s\t%s\n", tp.formatShortInteractive(), "[osthread]"));
                                }
                            }
                        }
                        break;
                    }
                }
            }
        } else {
            out.println("No active class loads");
        }
    } catch (CorruptDataException e) {
        throw new DDRInteractiveCommandException(e);
    }
}