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| author | Thialfihar <thialfihar@gmail.com> | 2010-06-03 16:17:55 +0000 |
|---|---|---|
| committer | Thialfihar <thialfihar@gmail.com> | 2010-06-03 16:17:55 +0000 |
| commit | 600b44b9fcaeb1858664ad7e9edf459b3060913d (patch) | |
| tree | 1bbc3cbc37a9c7c44bf3cb998cd998745ed1819e /src/org/thialfihar/android/apg/Service.java | |
| parent | 371dc31b97621fabed643d75157222f98de30fbc (diff) | |
| download | open-keychain-600b44b9fcaeb1858664ad7e9edf459b3060913d.tar.gz open-keychain-600b44b9fcaeb1858664ad7e9edf459b3060913d.tar.bz2 open-keychain-600b44b9fcaeb1858664ad7e9edf459b3060913d.zip | |
added a service to handle the caching, this'll ensure the cache works while no activity is around, which is better for k9mail integration
it also is a more efficient and much smarter cache, not requiring an own timer thread, just a service that sleeps must of the time, it also is more accurate in cleaning up the entries, ensuring that the worst case of too late removal is 5 seconds
Diffstat (limited to 'src/org/thialfihar/android/apg/Service.java')
| -rw-r--r-- | src/org/thialfihar/android/apg/Service.java | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/src/org/thialfihar/android/apg/Service.java b/src/org/thialfihar/android/apg/Service.java new file mode 100644 index 000000000..2c8fd8496 --- /dev/null +++ b/src/org/thialfihar/android/apg/Service.java @@ -0,0 +1,79 @@ +package org.thialfihar.android.apg;
+
+import android.content.Intent;
+import android.os.Binder;
+import android.os.Handler;
+import android.os.IBinder;
+
+public class Service extends android.app.Service {
+ private final IBinder mBinder = new LocalBinder();
+
+ public static final String EXTRA_TTL = "ttl";
+
+ private int mPassPhraseCacheTtl = 15;
+ private Handler mCacheHandler = new Handler();
+ private Runnable mCacheTask = new Runnable() {
+ public void run() {
+ // TODO: I suppose we could read out the time left until the first cache entry
+ // expiration, then use that for the timer...
+
+ // check every ttl/2 seconds, which shouldn't be heavy on the device (even if ttl = 15),
+ // and makes sure the longest a pass phrase survives in the cache is 1.5 * ttl
+ int delay = mPassPhraseCacheTtl * 1000 / 2;
+ // also make sure the delay is not longer than one minute
+ if (delay > 60000) {
+ delay = 60000;
+ }
+
+ delay = Apg.cleanUpCache(mPassPhraseCacheTtl, delay);
+ // don't check too often, even if we were close
+ if (delay < 5000) {
+ delay = 5000;
+ }
+
+ mCacheHandler.postDelayed(this, delay);
+ }
+ };
+
+ static private boolean mIsRunning = false;
+
+ @Override
+ public void onCreate() {
+ super.onCreate();
+
+ mIsRunning = true;
+ }
+
+ @Override
+ public void onDestroy() {
+ super.onDestroy();
+ mIsRunning = false;
+ }
+
+ @Override
+ public void onStart(Intent intent, int startId) {
+ super.onStart(intent, startId);
+
+ mPassPhraseCacheTtl = intent.getIntExtra(EXTRA_TTL, 15);
+ if (mPassPhraseCacheTtl < 15) {
+ mPassPhraseCacheTtl = 15;
+ }
+ mCacheHandler.removeCallbacks(mCacheTask);
+ mCacheHandler.postDelayed(mCacheTask, 1000);
+ }
+
+ static public boolean isRunning() {
+ return mIsRunning;
+ }
+
+ public class LocalBinder extends Binder {
+ Service getService() {
+ return Service.this;
+ }
+ }
+
+ @Override
+ public IBinder onBind(Intent intent) {
+ return mBinder;
+ }
+}
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