Move NFIPosixSupport.initUnsafe to PythonUtils

Author: fangerer

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/runtime/NFIPosixSupport.java

@@ -61,7 +61,6 @@
 import static com.oracle.truffle.api.CompilerDirectives.injectBranchProbability;
 import static com.oracle.truffle.api.CompilerDirectives.shouldNotReachHere;
 
-import java.lang.reflect.Field;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -132,24 +131,10 @@ public final class NFIPosixSupport extends PosixSupport {
 
     private static final TruffleLogger LOGGER = PythonLanguage.getLogger(NFIPosixSupport.class);
 
-    private static final Unsafe UNSAFE = initUnsafe();
+    private static final Unsafe UNSAFE = PythonUtils.initUnsafe();
 
     private static final Object CRYPT_LOCK = new Object();
 
-    private static Unsafe initUnsafe() {
-        try {
-            return Unsafe.getUnsafe();
-        } catch (SecurityException se) {
-            try {
-                Field theUnsafe = Unsafe.class.getDeclaredField("theUnsafe");
-                theUnsafe.setAccessible(true);
-                return (Unsafe) theUnsafe.get(Unsafe.class);
-            } catch (Exception e) {
-                throw new UnsupportedOperationException("Cannot initialize Unsafe for the native POSIX backend", e);
-            }
-        }
-    }
-
     private enum PosixNativeFunction {
         get_errno("():sint32"),
         set_errno("(sint32):void"),
@@ -1666,7 +1651,7 @@ private String gai_strerror(int errorCode,
      * Provides access to {@code struct addrinfo}.
      *
      * The layout of native {@code struct addrinfo} is as follows:
-     * 
+     *
      * <pre>
      * {@code
      *     struct addrinfo {
@@ -1681,7 +1666,7 @@ private String gai_strerror(int errorCode,
      *     };
      * }
      * </pre>
-     * 
+     *
      * To avoid multiple NFI calls, we transfer the data in batch using arrays of {@code int}s and
      * {@code long}s - int values are stored in {@code intData}, the {@code ai_canonname} and
      * {@code ai_next} pointers are stored in {@code longData} and the socket address pointed to by

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/util/PythonUtils.java

@@ -44,6 +44,7 @@
 import static com.oracle.graal.python.nodes.SpecialMethodNames.__NEW__;
 
 import java.lang.management.ManagementFactory;
+import java.lang.reflect.Field;
 import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
 import java.util.ArrayDeque;
@@ -83,6 +84,8 @@
 import com.oracle.truffle.api.profiles.ConditionProfile;
 import com.oracle.truffle.api.profiles.ValueProfile;
 
+import sun.misc.Unsafe;
+
 public final class PythonUtils {
 
     public static final PCell[] NO_CLOSURE = new PCell[0];
@@ -718,4 +721,18 @@ private static Object[] createCalltargetKeys(Object[] callTargetCacheKeys, Class
         arraycopy(callTargetCacheKeys, 0, keys, 1, callTargetCacheKeys.length);
         return keys;
     }
+
+    public static Unsafe initUnsafe() {
+        try {
+            return Unsafe.getUnsafe();
+        } catch (SecurityException se) {
+            try {
+                Field theUnsafe = Unsafe.class.getDeclaredField("theUnsafe");
+                theUnsafe.setAccessible(true);
+                return (Unsafe) theUnsafe.get(Unsafe.class);
+            } catch (Exception e) {
+                throw new UnsupportedOperationException("Cannot initialize Unsafe for the native POSIX backend", e);
+            }
+        }
+    }
 }