Add MaxVerificationGas (neo-project#1745)

Co-authored-by: Shargon <shargon@gmail.com>
ShawnYun · Jul 6, 2020 · 58e62a1 · 58e62a1
1 parent 67ca3f8
commit 58e62a1
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/neo/SmartContract/Helper.cs b/src/neo/SmartContract/Helper.cs
@@ -13,6 +13,8 @@ namespace Neo.SmartContract
 {
     public static class Helper
     {
+        private const long MaxVerificationGas = 0_50000000;
+
         public static UInt160 GetScriptHash(this ExecutionContext context)
         {
             return context.GetState<ExecutionContextState>().ScriptHash;
@@ -130,6 +132,7 @@ public static UInt160 ToScriptHash(this ReadOnlySpan<byte> script)
         internal static bool VerifyWitnesses(this IVerifiable verifiable, StoreView snapshot, long gas)
         {
             if (gas < 0) return false;
+            if (gas > MaxVerificationGas) gas = MaxVerificationGas;
 
             UInt160[] hashes;
             try