Grab stacktrace on signal.

PkmnLibSharp/Generated/Arbutils/C.cs

@@ -10,5 +10,14 @@ namespace Arbutils.Generated
         [DllImport("Arbutils", CallingConvention = CallingConvention.Cdecl, EntryPoint= "Arbutils_C_GetLastException")]
         internal static extern IntPtr GetLastException();
 
+        /// <param name="callback">Function *</param>
+        /// <returns>void</returns>
+        [DllImport("Arbutils", CallingConvention = CallingConvention.Cdecl, EntryPoint= "Arbutils_C_SetSignalCallback")]
+        internal static extern void SetSignalCallback(IntPtr callback);
+
+        /// <returns>void</returns>
+        [DllImport("Arbutils", CallingConvention = CallingConvention.Cdecl, EntryPoint= "Arbutils_C_RaiseSignal")]
+        internal static extern void RaiseSignal();
+
     }
 }

PkmnLibSharp/Generated/Creaturelib/C.cs

@@ -14,5 +14,9 @@ namespace Creaturelib.Generated
         [DllImport("CreatureLib", CallingConvention = CallingConvention.Cdecl, EntryPoint= "CreatureLib_C_GetLastExceptionStacktrace")]
         internal static extern IntPtr GetLastExceptionStacktrace();
 
+        /// <returns>void</returns>
+        [DllImport("CreatureLib", CallingConvention = CallingConvention.Cdecl, EntryPoint= "CreatureLib_C_RaiseSignal")]
+        internal static extern void RaiseSignal();
+
     }
 }

PkmnLibSharp/Utilities/SignalHandler.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Runtime.InteropServices;
+
+namespace PkmnLibSharp.Utilities
+{
+    public static class SignalHandler
+    {
+        public delegate void SignalDelegate(string s);
+        private delegate void InternalSignalDelegate(IntPtr ptr);
+
+        private static InternalSignalDelegate? _internalSignalDelegate;
+
+        public static void SetSignalListener(SignalDelegate del)
+        {
+            _internalSignalDelegate = ptr =>
+            {
+                del(ptr.PtrString()!);
+            };
+            Arbutils.Generated.C.SetSignalCallback(Marshal.GetFunctionPointerForDelegate(_internalSignalDelegate));
+        }
+    }
+}

PkmnLibSharp/arbutils.json

@@ -1 +1 @@
-{"enums":[{"byteSize":4,"filename":"Arbutils","name":"float_denorm_style","values":{"-1":"denorm_indeterminate","0":"denorm_absent","1":"denorm_present"}},{"byteSize":4,"filename":"Arbutils","name":"float_round_style","values":{"-1":"round_indeterminate","0":"round_toward_zero","1":"round_to_nearest","2":"round_toward_infinity","3":"round_toward_neg_infinity"}}],"functions":[{"filename":"Arbutils","name":"Arbutils_C_GetLastException","parameters":[],"returns":"const char *"},{"filename":"Arbutils","name":"Arbutils_Random_Construct","parameters":[],"returns":"Random *"},{"filename":"Arbutils","name":"Arbutils_Random_ConstructWithSeed","parameters":[{"name":"seed","type":"long unsigned int"}],"returns":"Random *"},{"filename":"Arbutils","name":"Arbutils_Random_Destruct","parameters":[{"name":"p","type":"Random *"}],"returns":"void"},{"filename":"Arbutils","name":"Arbutils_Random_GetFloat","parameters":[{"name":"p","type":"Random *"}],"returns":"float"},{"filename":"Arbutils","name":"Arbutils_Random_GetDouble","parameters":[{"name":"p","type":"Random *"}],"returns":"double"},{"filename":"Arbutils","name":"Arbutils_Random_Get","parameters":[{"name":"p","type":"Random *"}],"returns":"int"},{"filename":"Arbutils","name":"Arbutils_Random_GetWithMax","parameters":[{"name":"p","type":"Random *"},{"name":"max","type":"int"},{"name":"out","type":"int &"}],"returns":"unsigned char"},{"filename":"Arbutils","name":"Arbutils_Random_GetInLimits","parameters":[{"name":"p","type":"Random *"},{"name":"min","type":"int"},{"name":"max","type":"int"},{"name":"out","type":"int &"}],"returns":"unsigned char"},{"filename":"Arbutils","name":"Arbutils_Random_GetUnsigned","parameters":[{"name":"p","type":"Random *"}],"returns":"unsigned int"},{"filename":"Arbutils","name":"Arbutils_Random_GetUnsignedWithMax","parameters":[{"name":"p","type":"Random *"},{"name":"max","type":"unsigned int"},{"name":"out","type":"unsigned int &"}],"returns":"unsigned char"},{"filename":"Arbutils","name":"Arbutils_Random_GetUnsignedInLimits","parameters":[{"name":"p","type":"Random *"},{"name":"min","type":"unsigned int"},{"name":"max","type":"unsigned int"},{"name":"out","type":"unsigned int &"}],"returns":"unsigned char"},{"filename":"Arbutils","name":"Arbutils_Random_GetSeed","parameters":[{"name":"p","type":"Random *"}],"returns":"long unsigned int"}]}
+{"enums":[{"byteSize":4,"filename":"Arbutils","name":"float_denorm_style","values":{"-1":"denorm_indeterminate","0":"denorm_absent","1":"denorm_present"}},{"byteSize":4,"filename":"Arbutils","name":"float_round_style","values":{"-1":"round_indeterminate","0":"round_toward_zero","1":"round_to_nearest","2":"round_toward_infinity","3":"round_toward_neg_infinity"}}],"functions":[{"filename":"Arbutils","name":"Arbutils_C_GetLastException","parameters":[],"returns":"const char *"},{"filename":"Arbutils","name":"Arbutils_C_SetSignalCallback","parameters":[{"name":"callback","type":"Function *"}],"returns":"void"},{"filename":"Arbutils","name":"Arbutils_C_RaiseSignal","parameters":[],"returns":"void"},{"filename":"Arbutils","name":"Arbutils_Random_Construct","parameters":[],"returns":"Random *"},{"filename":"Arbutils","name":"Arbutils_Random_ConstructWithSeed","parameters":[{"name":"seed","type":"long unsigned int"}],"returns":"Random *"},{"filename":"Arbutils","name":"Arbutils_Random_Destruct","parameters":[{"name":"p","type":"Random *"}],"returns":"void"},{"filename":"Arbutils","name":"Arbutils_Random_GetFloat","parameters":[{"name":"p","type":"Random *"}],"returns":"float"},{"filename":"Arbutils","name":"Arbutils_Random_GetDouble","parameters":[{"name":"p","type":"Random *"}],"returns":"double"},{"filename":"Arbutils","name":"Arbutils_Random_Get","parameters":[{"name":"p","type":"Random *"}],"returns":"int"},{"filename":"Arbutils","name":"Arbutils_Random_GetWithMax","parameters":[{"name":"p","type":"Random *"},{"name":"max","type":"int"},{"name":"out","type":"int &"}],"returns":"unsigned char"},{"filename":"Arbutils","name":"Arbutils_Random_GetInLimits","parameters":[{"name":"p","type":"Random *"},{"name":"min","type":"int"},{"name":"max","type":"int"},{"name":"out","type":"int &"}],"returns":"unsigned char"},{"filename":"Arbutils","name":"Arbutils_Random_GetUnsigned","parameters":[{"name":"p","type":"Random *"}],"returns":"unsigned int"},{"filename":"Arbutils","name":"Arbutils_Random_GetUnsignedWithMax","parameters":[{"name":"p","type":"Random *"},{"name":"max","type":"unsigned int"},{"name":"out","type":"unsigned int &"}],"returns":"unsigned char"},{"filename":"Arbutils","name":"Arbutils_Random_GetUnsignedInLimits","parameters":[{"name":"p","type":"Random *"},{"name":"min","type":"unsigned int"},{"name":"max","type":"unsigned int"},{"name":"out","type":"unsigned int &"}],"returns":"unsigned char"},{"filename":"Arbutils","name":"Arbutils_Random_GetSeed","parameters":[{"name":"p","type":"Random *"}],"returns":"long unsigned int"}]}

PkmnLibSharpTests/TestClass.cs

@@ -3,6 +3,7 @@ using System.Reflection;
 using System.Runtime.InteropServices;
 using NUnit.Framework;
 using PkmnLibSharp.Battling;
+using PkmnLibSharp.Utilities;
 
 namespace PkmnLibSharpTests
 {
@@ -20,6 +21,8 @@ namespace PkmnLibSharpTests
             {
                 Console.WriteLine($"[{level.ToString().ToUpperInvariant()}] {s}");
             });
+            
+            SignalHandler.SetSignalListener(s => throw new Exception("Encountered a catastrophic signal. \n" + s));
         }
     }
 }