_ Git - ldk-java/blob - c_sharp/src/org/ldk/structs/LockableScore.cs

   1 using org.ldk.impl;
   2 using org.ldk.enums;
   3 using org.ldk.util;
   4 using System;
   5
   6 namespace org { namespace ldk { namespace structs {
   7
   8 /**
   9  * A scorer that is accessed under a lock.
  10  *
  11  * Needed so that calls to [`Score::channel_penalty_msat`] in [`find_route`] can be made while
  12  * having shared ownership of a scorer but without requiring internal locking in [`Score`]
  13  * implementations. Internal locking would be detrimental to route finding performance and could
  14  * result in [`Score::channel_penalty_msat`] returning a different value for the same channel.
  15  *
  16  * [`find_route`]: crate::routing::router::find_route
  17  */
  18 public class LockableScore : CommonBase {
  19         internal readonly bindings.LDKLockableScore bindings_instance;
  20         internal LockableScore(object _dummy, long ptr) : base(ptr) { bindings_instance = null; }
  21         private LockableScore(bindings.LDKLockableScore arg) : base(bindings.LDKLockableScore_new(arg)) {
  22                 this.ptrs_to.AddLast(arg);
  23                 this.bindings_instance = arg;
  24         }
  25         ~LockableScore() {
  26                 if (ptr != 0) { bindings.LockableScore_free(ptr); }
  27         }
  28
  29         public interface LockableScoreInterface {
  30                 /**
  31                  * Returns the locked scorer.
  32                  */
  33                 Score do_lock();
  34         }
  35         private class LDKLockableScoreHolder { internal LockableScore held; }
  36         private class LDKLockableScoreImpl : bindings.LDKLockableScore {
  37                 internal LDKLockableScoreImpl(LockableScoreInterface arg, LDKLockableScoreHolder impl_holder) { this.arg = arg; this.impl_holder = impl_holder; }
  38                 private LockableScoreInterface arg;
  39                 private LDKLockableScoreHolder impl_holder;
  40                 public long do_lock() {
  41                         Score ret = arg.do_lock();
  42                                 GC.KeepAlive(arg);
  43                         long result = ret == null ? 0 : ret.ptr;
  44                         if (impl_holder.held != null) { impl_holder.held.ptrs_to.AddLast(ret); };
  45                         return result;
  46                 }
  47         }
  48         public static LockableScore new_impl(LockableScoreInterface arg) {
  49                 LDKLockableScoreHolder impl_holder = new LDKLockableScoreHolder();
  50                 impl_holder.held = new LockableScore(new LDKLockableScoreImpl(arg, impl_holder));
  51                 return impl_holder.held;
  52         }
  53         /**
  54          * Returns the locked scorer.
  55          */
  56         public Score do_lock() {
  57                 long ret = bindings.LockableScore_lock(this.ptr);
  58                 GC.KeepAlive(this);
  59                 if (ret >= 0 && ret <= 4096) { return null; }
  60                 Score ret_hu_conv = new Score(null, ret);
  61                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(this); };
  62                 return ret_hu_conv;
  63         }
  64
  65 }
  66 } } }