Bindings updates

[ldk-java] / src / main / java / org / ldk / structs / Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ.java

diff --git a/src/main/java/org/ldk/structs/Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ.java b/src/main/java/org/ldk/structs/Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ.java
index fb1b524798e869340d9cfa134b76cb21fb455ed6..70127ff0184e15d07236bb6df300940e9626fe47 100644 (file)
--- a/src/main/java/org/ldk/structs/Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ.java
+++ b/src/main/java/org/ldk/structs/Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ.java
@@ -26,12 +26,22 @@ public class Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ extends CommonB
                        long res = bindings.LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_get_ok(ptr);
                        byte[] res_a = bindings.LDKC2Tuple_BlockHashChannelManagerZ_get_a(res);
                        long res_b = bindings.LDKC2Tuple_BlockHashChannelManagerZ_get_b(res);
-                       ChannelManager res_b_hu_conv = new ChannelManager(null, res_b);;
+                       ChannelManager res_b_hu_conv = new ChannelManager(null, res_b);
+                       res_b_hu_conv.ptrs_to.add(this);;
                        TwoTuple<byte[], ChannelManager> res_conv = new TwoTuple<byte[], ChannelManager>(res_a, res_b_hu_conv);
                        this.res = res_conv;
                }
                public Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_OK(TwoTuple<byte[], ChannelManager> res) {
-                       this(null, bindings.CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_ok(bindings.C2Tuple_BlockHashChannelManagerZ_new(res.a, res.b == null ? 0 : res.b.ptr & ~1/*XXX: this.ptrs_to.add(res_b)*/)));
+                       this(null, bindings.CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_ok(bindings.C2Tuple_BlockHashChannelManagerZ_new(res.a, res.b == null ? 0 : res.b.ptr & ~1)));
+                       this.ptrs_to.add(res.b);
+                       // Due to rust's strict-ownership memory model, in some cases we need to "move"
+                       // an object to pass exclusive ownership to the function being called.
+                       // In most cases, we avoid this being visible in GC'd languages by cloning the object
+                       // at the FFI layer, creating a new object which Rust can claim ownership of
+                       // However, in some cases (eg here), there is no way to clone an object, and thus
+                       // we actually have to pass full ownership to Rust.
+                       // Thus, after this call, res.b is reset to null and is now a dummy object.
+                       res.b.ptr = 0;
                }
        }
 
@@ -41,6 +51,7 @@ public class Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ extends CommonB
                        super(_dummy, ptr);
                        long err = bindings.LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_get_err(ptr);
                        DecodeError err_hu_conv = new DecodeError(null, err);
+                       err_hu_conv.ptrs_to.add(this);
                        this.err = err_hu_conv;
                }
                public Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_Err(DecodeError err) {