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fix

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This commit is contained in:
Claudio Maggioni 2023-01-09 19:15:25 +01:00
parent 4fd150441d
commit cc38d2872b
2 changed files with 5 additions and 6 deletions
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1
DiSLProject2022/src-profiler/ex5/Instrumentation.java
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@ -18,7 +18,6 @@ public class Instrumentation {
Profiler.addUnsafeAllocation(); Profiler.addUnsafeAllocation();
} }
@Before(marker = BodyMarker.class, scope = "sun.misc.Unsafe.allocateInstance") @Before(marker = BodyMarker.class, scope = "sun.misc.Unsafe.allocateInstance")
static void handleUnsafeAllocationsPraiseTheSun() { static void handleUnsafeAllocationsPraiseTheSun() {
Profiler.addUnsafeAllocation(); Profiler.addUnsafeAllocation();

10
DiSLProject2022/src-profiler/ex9/Profiler.java
View file

@ -6,7 +6,7 @@ import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap; import java.util.concurrent.ConcurrentMap;
public final class Profiler { public final class Profiler {
private static final ConcurrentMap<String, List<String>> callLog = new ConcurrentHashMap<>(); private static final ConcurrentMap<Thread, List<String>> callLog = new ConcurrentHashMap<>();
static { static {
Runtime.getRuntime().addShutdownHook(new Thread(Profiler::print)); Runtime.getRuntime().addShutdownHook(new Thread(Profiler::print));
@ -16,16 +16,16 @@ public final class Profiler {
} }
public static void logCall(final Thread thread, final String methodName) { public static void logCall(final Thread thread, final String methodName) {
final List<String> list = callLog.computeIfAbsent(thread.getName(), ignored -> new LinkedList<>()); final List<String> list = callLog.computeIfAbsent(thread, ignored -> new LinkedList<>());
// thread safe, as once a thread accesses its own list access to said list is non-concurrent // thread safe, as once a thread accesses its own list access to said list is non-concurrent
list.add(methodName); list.add(methodName);
} }
private static void print() { private static void print() {
for (final String threadName : callLog.keySet()) { for (final Thread thread : callLog.keySet()) {
System.out.printf("=== %s ===\n", threadName); System.out.printf("=== %s ===\n", thread.getName());
callLog.get(threadName).forEach(System.out::println); callLog.get(thread).forEach(System.out::println);
} }
} }
} }