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-rw-r--r--core/vm/intpool.go6
1 files changed, 6 insertions, 0 deletions
diff --git a/core/vm/intpool.go b/core/vm/intpool.go
index 4f1228e14..384f5df59 100644
--- a/core/vm/intpool.go
+++ b/core/vm/intpool.go
@@ -20,6 +20,8 @@ import "math/big"
var checkVal = big.NewInt(-42)
+const poolLimit = 256
+
// intPool is a pool of big integers that
// can be reused for all big.Int operations.
type intPool struct {
@@ -37,6 +39,10 @@ func (p *intPool) get() *big.Int {
return new(big.Int)
}
func (p *intPool) put(is ...*big.Int) {
+ if len(p.pool.data) > poolLimit {
+ return
+ }
+
for _, i := range is {
// verifyPool is a build flag. Pool verification makes sure the integrity
// of the integer pool by comparing values to a default value.