X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Forg%2Fldk%2Fstructs%2FUnsignedChannelUpdate.java;h=dfa381e6e8dbb5dfe3cea2c1e21f35ba654c8153;hb=65a17b9ef4884736783566e30e075ca59b472cc7;hp=9f50b5c6f25be35534125c17e72610f6d4b4b754;hpb=1b870a3ffab1c0024411e30102bc6d198300f095;p=ldk-java

diff --git a/src/main/java/org/ldk/structs/UnsignedChannelUpdate.java b/src/main/java/org/ldk/structs/UnsignedChannelUpdate.java
index 9f50b5c6..dfa381e6 100644
--- a/src/main/java/org/ldk/structs/UnsignedChannelUpdate.java
+++ b/src/main/java/org/ldk/structs/UnsignedChannelUpdate.java
@@ -79,7 +79,14 @@ public class UnsignedChannelUpdate extends CommonBase {
 	}
 
 	/**
-	 * The number of blocks to subtract from incoming HTLC cltv_expiry values
+	 * The number of blocks such that if:
+	 * `incoming_htlc.cltv_expiry < outgoing_htlc.cltv_expiry + cltv_expiry_delta`
+	 * then we need to fail the HTLC backwards. When forwarding an HTLC, cltv_expiry_delta determines
+	 * the outgoing HTLC's minimum cltv_expiry value -- so, if an incoming HTLC comes in with a
+	 * cltv_expiry of 100000, and the node we're forwarding to has a cltv_expiry_delta value of 10,
+	 * then we'll check that the outgoing HTLC's cltv_expiry value is at least 100010 before
+	 * forwarding. Note that the HTLC sender is the one who originally sets this value when
+	 * constructing the route.
 	 */
 	public short get_cltv_expiry_delta() {
 		short ret = bindings.UnsignedChannelUpdate_get_cltv_expiry_delta(this.ptr);
@@ -87,7 +94,14 @@ public class UnsignedChannelUpdate extends CommonBase {
 	}
 
 	/**
-	 * The number of blocks to subtract from incoming HTLC cltv_expiry values
+	 * The number of blocks such that if:
+	 * `incoming_htlc.cltv_expiry < outgoing_htlc.cltv_expiry + cltv_expiry_delta`
+	 * then we need to fail the HTLC backwards. When forwarding an HTLC, cltv_expiry_delta determines
+	 * the outgoing HTLC's minimum cltv_expiry value -- so, if an incoming HTLC comes in with a
+	 * cltv_expiry of 100000, and the node we're forwarding to has a cltv_expiry_delta value of 10,
+	 * then we'll check that the outgoing HTLC's cltv_expiry value is at least 100010 before
+	 * forwarding. Note that the HTLC sender is the one who originally sets this value when
+	 * constructing the route.
 	 */
 	public void set_cltv_expiry_delta(short val) {
 		bindings.UnsignedChannelUpdate_set_cltv_expiry_delta(this.ptr, val);
@@ -143,6 +157,7 @@ public class UnsignedChannelUpdate extends CommonBase {
 	 */
 	public UnsignedChannelUpdate clone() {
 		long ret = bindings.UnsignedChannelUpdate_clone(this.ptr);
+		if (ret < 1024) { return null; }
 		UnsignedChannelUpdate ret_hu_conv = new UnsignedChannelUpdate(null, ret);
 		ret_hu_conv.ptrs_to.add(this);
 		return ret_hu_conv;
@@ -159,8 +174,9 @@ public class UnsignedChannelUpdate extends CommonBase {
 	/**
 	 * Read a UnsignedChannelUpdate from a byte array, created by UnsignedChannelUpdate_write
 	 */
-	public static Result_UnsignedChannelUpdateDecodeErrorZ constructor_read(byte[] ser) {
+	public static Result_UnsignedChannelUpdateDecodeErrorZ read(byte[] ser) {
 		long ret = bindings.UnsignedChannelUpdate_read(ser);
+		if (ret < 1024) { return null; }
 		Result_UnsignedChannelUpdateDecodeErrorZ ret_hu_conv = Result_UnsignedChannelUpdateDecodeErrorZ.constr_from_ptr(ret);
 		return ret_hu_conv;
 	}