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Code Issues Releases Wiki Activity

Post computed live data ASAP

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This commit is contained in:
M66B 2019-08-14 10:33:34 +02:00
parent f0b369225f
commit cc7ad90c48
2 changed files with 13 additions and 9 deletions
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7
app/src/main/java/androidx/lifecycle/ComputableLiveData.java
View file

@ -89,6 +89,7 @@ public abstract class ComputableLiveData<T> {
@Override
public void run() {
boolean computed;
boolean once;
long last;
do {
computed = false;
@ -96,12 +97,14 @@ public abstract class ComputableLiveData<T> {
if (mComputing.compareAndSet(false, true)) {
// as long as it is invalid, keep computing.
try {
once = true;
last = android.os.SystemClock.elapsedRealtime();
T value = null;
while (mInvalid.compareAndSet(true, false)) {
long now = android.os.SystemClock.elapsedRealtime();
if (last + 1500 < now && value != null) {
eu.faircode.email.Log.i(mLiveData + " post age=" + (now - last));
if (value != null && (once || last + 2500 < now)) {
eu.faircode.email.Log.i(mLiveData + " post once=" + once + " age=" + (now - last) + " ms");
once = false;
last = now;
mLiveData.postValue(value);
}

15
patches/livedata.patch
View file

@ -1,11 +1,10 @@
diff --git a/app/src/main/java/androidx/lifecycle/ComputableLiveData.java b/app/src/main/java/androidx/lifecycle/ComputableLiveData.java
index 837a35dbf..338af5c89 100644
--- a/app/src/main/java/androidx/lifecycle/ComputableLiveData.java
+++ b/app/src/main/java/androidx/lifecycle/ComputableLiveData.java
@@ -89,14 +89,22 @@ public abstract class ComputableLiveData<T> {
--- /home/marcel/support/lifecycle/lifecycle-livedata/src/main/java/androidx/lifecycle/ComputableLiveData.java 2019-07-27 12:47:44.348985792 +0200
+++ app/src/main/java/androidx/lifecycle/ComputableLiveData.java 2019-08-14 10:25:21.881453609 +0200
@@ -89,14 +89,25 @@ public abstract class ComputableLiveData
@Override
public void run() {
boolean computed;
+ boolean once;
+ long last;
do {
computed = false;
@ -13,12 +12,14 @@ index 837a35dbf..338af5c89 100644
if (mComputing.compareAndSet(false, true)) {
// as long as it is invalid, keep computing.
try {
+ once = true;
+ last = android.os.SystemClock.elapsedRealtime();
T value = null;
while (mInvalid.compareAndSet(true, false)) {
+ long now = android.os.SystemClock.elapsedRealtime();
+ if (last + 1500 < now && value != null) {
+ eu.faircode.email.Log.i(mLiveData + " post age=" + (now - last));
+ if (value != null && (once || last + 2500 < now)) {
+ eu.faircode.email.Log.i(mLiveData + " post once=" + once + " age=" + (now - last) + " ms");
+ once = false;
+ last = now;
+ mLiveData.postValue(value);
+ }