diff options
author | lookshe <github@lookshe.org> | 2015-08-11 17:35:53 +0200 |
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committer | lookshe <github@lookshe.org> | 2015-08-11 17:35:53 +0200 |
commit | 8fd688ca96005152be754eeba1be72c7c0aab9ad (patch) | |
tree | c4d2e3dfe7250a6794aaa3fa9816ad3da70a813e /src/main/java/eu/siacs/conversations/utils/SerialSingleThreadExecutor.java | |
parent | 553f41a2dbc068a8a43f613e088713cd3ec7680e (diff) |
Merge tag '1.5.2' into trz/rebase
Diffstat (limited to '')
-rw-r--r-- | src/main/java/eu/siacs/conversations/utils/SerialSingleThreadExecutor.java | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/main/java/eu/siacs/conversations/utils/SerialSingleThreadExecutor.java b/src/main/java/eu/siacs/conversations/utils/SerialSingleThreadExecutor.java new file mode 100644 index 00000000..bfb4668d --- /dev/null +++ b/src/main/java/eu/siacs/conversations/utils/SerialSingleThreadExecutor.java @@ -0,0 +1,34 @@ +package eu.siacs.conversations.utils; + +import java.util.ArrayDeque; +import java.util.Queue; +import java.util.concurrent.Executor; +import java.util.concurrent.Executors; + +public class SerialSingleThreadExecutor implements Executor { + + final Executor executor = Executors.newSingleThreadExecutor(); + final Queue<Runnable> tasks = new ArrayDeque(); + Runnable active; + + public synchronized void execute(final Runnable r) { + tasks.offer(new Runnable() { + public void run() { + try { + r.run(); + } finally { + scheduleNext(); + } + } + }); + if (active == null) { + scheduleNext(); + } + } + + protected synchronized void scheduleNext() { + if ((active = tasks.poll()) != null) { + executor.execute(active); + } + } +}
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