log(math): add log for x87 ret.

halibobo1205 · Jun 12, 2024 · 28c110d · 28c110d
1 parent ce7a0c1
commit 28c110d
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Showing 3 changed files with 19 additions and 5 deletions.
diff --git a/common/src/main/java/org/tron/common/math/MathWrapper.java b/common/src/main/java/org/tron/common/math/MathWrapper.java
@@ -140,6 +140,12 @@ public static double pow(double a, double b) {
  public static double powForExchange(double a, double b) {
  Preconditions.checkArgument(b > -1 && b < 1, "b must be -1<b<1");
  Preconditions.checkArgument(a > 1 && a < 2, "a must be 1<a<2");
- return PowDataForJdk8.getData().getOrDefault(a, StrictMathWrapper.pow(a, b));
+ Double ret = PowDataForJdk8.get(a);
+ if (ret != null) {
+ logger.info("get from x87, a: {}, ret: {}", PowDataForJdk8.doubleToHex(a),
+ PowDataForJdk8.doubleToHex(ret));
+ return ret;
+ }
+ return pow(a, b);
  }
 }
diff --git a/common/src/main/java/org/tron/common/math/PowDataForJdk8.java b/common/src/main/java/org/tron/common/math/PowDataForJdk8.java
@@ -3,7 +3,6 @@
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;
-import lombok.Getter;
 
 /**
  * This class is used to provide the same pow data for jdk8.
@@ -12,7 +11,6 @@
  */
 class PowDataForJdk8 {
 
- @Getter
  private static final Map<Double, Double> data = Collections.synchronizedMap(new HashMap<>());
 
  /**
@@ -371,6 +369,17 @@ private static void addData(String a, String x87Ret) {
  data.put(hexToDouble(a), hexToDouble(x87Ret));
  }
 
+ public static Double get(double key) {
+ return data.get(key);
+ }
+
+ static String doubleToHex(double input) {
+ // Convert the double to a long
+ long inputAsLong = Double.doubleToLongBits(input);
+ // and then convert the long to a hex string
+ return Long.toHexString(inputAsLong);
+ }
+
  static double hexToDouble(String input) {
  // Convert the hex string to a long
  long hexAsLong = Long.parseLong(input, 16);

diff --git a/common/src/test/java/org/tron/common/math/MathTest.java b/common/src/test/java/org/tron/common/math/MathTest.java
@@ -15,8 +15,7 @@ public void testPow() {
  double ret3 = StrictMathWrapper.pow(a, 0.0005);
  Assert.assertNotEquals(0, Double.compare(ret, ret2));
  Assert.assertNotEquals(0, Double.compare(ret2, ret3));
- Assert.assertEquals(0, Double.compare(
- PowDataForJdk8.getData().get(a), ret2));
+ Assert.assertEquals(0, Double.compare(PowDataForJdk8.get(a), ret2));
  Assert.assertEquals(0, Double.compare(ret, ret3));
  }
 }