use a fixed thread pool for general short tasks

[mobile-ledger.git] / app / src / main / java / net / ktnx / mobileledger / async / GeneralBackgroundTasks.java

diff --git a/app/src/main/java/net/ktnx/mobileledger/async/GeneralBackgroundTasks.java b/app/src/main/java/net/ktnx/mobileledger/async/GeneralBackgroundTasks.java
index 110921929dafff9aa60545b90a20363b68d0ce16..3ff5904296a9bc9ce359e53f2c8a21ad1af21efb 100644 (file)
--- a/app/src/main/java/net/ktnx/mobileledger/async/GeneralBackgroundTasks.java
+++ b/app/src/main/java/net/ktnx/mobileledger/async/GeneralBackgroundTasks.java
@@ -25,15 +25,19 @@ import org.jetbrains.annotations.Nullable;
 import java.util.concurrent.Executor;
 import java.util.concurrent.Executors;
 
+/**
+ * suitable for short tasks, not involving network communication
+ */
 public class GeneralBackgroundTasks {
-    private static final Executor runner = Executors.newCachedThreadPool();
+    private static final Executor runner = Executors.newFixedThreadPool(Runtime.getRuntime()
+                                                                               .availableProcessors());
     public static void run(@NotNull Runnable runnable) {
         runner.execute(runnable);
     }
     public static void run(@NotNull Runnable runnable, @NotNull Runnable onSuccess) {
         runner.execute(() -> {
             runnable.run();
-            onSuccess.run();
+            Misc.onMainThread(onSuccess);
         });
     }
     public static void run(@NotNull Runnable runnable, @Nullable Runnable onSuccess,