廣研Android卡頓監控系統
阿新 • • 發佈：2019-01-24
public static void loop() {
final Looper me = myLooper();
if (me == null) {
throw new RuntimeException("No Looper; Looper.prepare() wasn't called on this thread."); }
final MessageQueue queue = me.mQueue;
// Make sure the identity of this thread is that of the local process, // and keep track of what that identity token actually is.
final long ident = Binder.clearCallingIdentity();
for (;;) { Message msg = queue.next();
// might block if (msg == null) {
// No message indicates that the message queue is quitting. return; }
// This must be in a local variable, in case a UI event sets the logger
if (logging != null) { logging.println(">>>>> Dispatching to " + msg.target + " " + msg.callback + ": " + msg.what); } msg.target.dispatchMessage(msg);
if
// Make sure that during the course of dispatching the // identity of the thread wasn't corrupted. final long newIdent = Binder.clearCallingIdentity();
if (ident != newIdent) { Log.wtf(TAG, "Thread identity changed from 0x" + Long.toHexString(ident) + " to 0x" + Long.toHexString(newIdent) + " while dispatching to " + msg.target.getClass().getName() + " " + msg.callback + " what=" + msg.what); } msg.recycleUnchecked(); } }
final Looper me = myLooper();
if (me == null) {
throw new RuntimeException("No Looper; Looper.prepare() wasn't called on this thread."); }
final MessageQueue queue = me.mQueue;
// Make sure the identity of this thread is that of the local process, // and keep track of what that identity token actually is.
final long ident = Binder.clearCallingIdentity();
for (;;) { Message msg = queue.next();
// might block if (msg == null) {
// No message indicates that the message queue is quitting. return; }
// This must be in a local variable, in case a UI event sets the logger
if (logging != null) { logging.println(">>>>> Dispatching to " + msg.target + " " + msg.callback + ": " + msg.what); } msg.target.dispatchMessage(msg);
if
// Make sure that during the course of dispatching the // identity of the thread wasn't corrupted. final long newIdent = Binder.clearCallingIdentity();
if (ident != newIdent) { Log.wtf(TAG, "Thread identity changed from 0x" + Long.toHexString(ident) + " to 0x" + Long.toHexString(newIdent) + " while dispatching to " + msg.target.getClass().getName() + " " + msg.callback + " what=" + msg.what); } msg.recycleUnchecked(); } }