use of com.sun.jna.platform.win32.Advapi32Util.EventLogRecord in project jna by java-native-access.
the class Advapi32Test method testReadEventLogEntries.
public void testReadEventLogEntries() {
HANDLE h = Advapi32.INSTANCE.OpenEventLog(null, "Application");
IntByReference pnBytesRead = new IntByReference();
IntByReference pnMinNumberOfBytesNeeded = new IntByReference();
Memory buffer = new Memory(1024 * 64);
// shorten test, avoid iterating through all events
int maxReads = 3;
int rc = 0;
while (true) {
if (maxReads-- <= 0)
break;
if (!Advapi32.INSTANCE.ReadEventLog(h, WinNT.EVENTLOG_SEQUENTIAL_READ | WinNT.EVENTLOG_FORWARDS_READ, 0, buffer, (int) buffer.size(), pnBytesRead, pnMinNumberOfBytesNeeded)) {
rc = Kernel32.INSTANCE.GetLastError();
if (rc == W32Errors.ERROR_INSUFFICIENT_BUFFER) {
buffer = new Memory(pnMinNumberOfBytesNeeded.getValue());
rc = 0;
continue;
}
break;
}
int dwRead = pnBytesRead.getValue();
Pointer pevlr = buffer;
int maxRecords = 3;
while (dwRead > 0 && maxRecords-- > 0) {
EVENTLOGRECORD record = new EVENTLOGRECORD(pevlr);
/*
System.out.println(record.RecordNumber.intValue()
+ " Event ID: " + record.EventID.intValue()
+ " Event Type: " + record.EventType.intValue()
+ " Event Source: " + pevlr.getString(record.size(), true));
*/
dwRead -= record.Length.intValue();
pevlr = pevlr.share(record.Length.intValue());
}
}
assertTrue("Unexpected error after reading event log: " + new Win32Exception(rc), rc == W32Errors.ERROR_HANDLE_EOF || rc == 0);
assertTrue("Error closing event log", Advapi32.INSTANCE.CloseEventLog(h));
}
use of com.sun.jna.platform.win32.Advapi32Util.EventLogRecord in project jna by java-native-access.
the class Advapi32UtilTest method testEventLogIteratorBackwards.
public void testEventLogIteratorBackwards() {
EventLogIterator iter = new EventLogIterator(null, "Application", WinNT.EVENTLOG_BACKWARDS_READ);
try {
int max = 100;
int lastId = -1;
while (iter.hasNext()) {
EventLogRecord record = iter.next();
/*
System.out.println(record.getRecordNumber()
+ ": Event ID: " + record.getEventId()
+ ", Event Type: " + record.getType()
+ ", Event Source: " + record.getSource());
*/
assertTrue(record.getRecordNumber() < lastId || lastId == -1);
lastId = record.getRecordNumber();
if (max-- <= 0) {
// shorten test
break;
}
}
} finally {
iter.close();
}
}
use of com.sun.jna.platform.win32.Advapi32Util.EventLogRecord in project jna by java-native-access.
the class Advapi32UtilTest method testEventLogIteratorForwards.
public void testEventLogIteratorForwards() {
EventLogIterator iter = new EventLogIterator("Application");
try {
int max = 100;
int lastId = 0;
while (iter.hasNext()) {
EventLogRecord record = iter.next();
assertTrue(record.getRecordNumber() > lastId);
lastId = record.getRecordNumber();
assertNotNull(record.getType().name());
assertNotNull(record.getSource());
if (record.getRecord().DataLength.intValue() > 0) {
assertEquals(record.getData().length, record.getRecord().DataLength.intValue());
} else {
assertNull(record.getData());
}
if (record.getRecord().NumStrings.intValue() > 0) {
assertEquals(record.getStrings().length, record.getRecord().NumStrings.intValue());
} else {
assertNull(record.getStrings());
}
if (max-- <= 0) {
// shorten test
break;
}
/*
System.out.println(record.getRecordNumber()
+ ": Event ID: " + record.getEventId()
+ ", Event Type: " + record.getType()
+ ", Event Source: " + record.getSource());
*/
}
} finally {
iter.close();
}
}
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