Merge "Use AsyncTask.SERIAL_EXECUTOR as the default executor for scan"

This commit is contained in:
Treehugger Robot
2018-03-16 17:23:53 +00:00
committed by Gerrit Code Review
2 changed files with 17 additions and 6 deletions

View File

@@ -5425,7 +5425,10 @@ public class TelephonyManager {
* app has carrier privileges (see {@link #hasCarrierPrivileges}).
*
* @param request Contains all the RAT with bands/channels that need to be scanned.
* @param executor The executor through which the callback should be invoked.
* @param executor The executor through which the callback should be invoked. Since the scan
* request may trigger multiple callbacks and they must be invoked in the same order as
* they are received by the platform, the user should provide an executor which executes
* tasks one at a time in serial order. For example AsyncTask.SERIAL_EXECUTOR.
* @param callback Returns network scan results or errors.
* @return A NetworkScan obj which contains a callback which can be used to stop the scan.
*/
@@ -5451,7 +5454,7 @@ public class TelephonyManager {
@RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
public NetworkScan requestNetworkScan(
NetworkScanRequest request, TelephonyScanManager.NetworkScanCallback callback) {
return requestNetworkScan(request, AsyncTask.THREAD_POOL_EXECUTOR, callback);
return requestNetworkScan(request, AsyncTask.SERIAL_EXECUTOR, callback);
}
/**

View File

@@ -137,8 +137,10 @@ public final class TelephonyScanManager {
for (int i = 0; i < parcelables.length; i++) {
ci[i] = (CellInfo) parcelables[i];
}
executor.execute(() ->
callback.onResults((List<CellInfo>) Arrays.asList(ci)));
executor.execute(() ->{
Rlog.d(TAG, "onResults: " + ci.toString());
callback.onResults((List<CellInfo>) Arrays.asList(ci));
});
} catch (Exception e) {
Rlog.e(TAG, "Exception in networkscan callback onResults", e);
}
@@ -146,14 +148,20 @@ public final class TelephonyScanManager {
case CALLBACK_SCAN_ERROR:
try {
final int errorCode = message.arg1;
executor.execute(() -> callback.onError(errorCode));
executor.execute(() -> {
Rlog.d(TAG, "onError: " + errorCode);
callback.onError(errorCode);
});
} catch (Exception e) {
Rlog.e(TAG, "Exception in networkscan callback onError", e);
}
break;
case CALLBACK_SCAN_COMPLETE:
try {
executor.execute(() -> callback.onComplete());
executor.execute(() -> {
Rlog.d(TAG, "onComplete");
callback.onComplete();
});
mScanInfo.remove(message.arg2);
} catch (Exception e) {
Rlog.e(TAG, "Exception in networkscan callback onComplete", e);