From 3c843d40047e05c81966f75556709d4d9db3acee Mon Sep 17 00:00:00 2001
From: Len <40720638+destro174@users.noreply.github.com>
Date: Wed, 19 Oct 2022 17:55:26 +0200
Subject: [PATCH] Add DataLockAPI.java

---
 api/src/main/java/com/alttd/DataLockAPI.java | 31 ++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 api/src/main/java/com/alttd/DataLockAPI.java

diff --git a/api/src/main/java/com/alttd/DataLockAPI.java b/api/src/main/java/com/alttd/DataLockAPI.java
new file mode 100644
index 0000000..e2e4a19
--- /dev/null
+++ b/api/src/main/java/com/alttd/DataLockAPI.java
@@ -0,0 +1,31 @@
+package com.alttd;
+
+import org.jetbrains.annotations.ApiStatus;
+
+public interface DataLockAPI {
+
+    static DataLockAPI get() {
+        return Provider.instance;
+    }
+
+    final class Provider {
+        private static DataLockAPI instance = null;
+
+        @ApiStatus.Internal
+        static void register(DataLockAPI instance) {
+            if (Provider.instance != null)
+                throw new UnsupportedOperationException("Cannot redefine singleton");
+
+            Provider.instance = instance;
+        }
+    }
+
+    void tryLock(String channel, String data);
+
+    void tryUnlock(String channel, String data);
+
+    void registerChannel(String channel);
+
+    boolean isActiveChannel(String channel);
+
+}