| 9 |
|
import java.util.*; |
| 10 |
|
import java.util.concurrent.*; |
| 11 |
|
import java.util.concurrent.atomic.*; |
| 12 |
– |
import sun.misc.Unsafe; |
| 13 |
– |
import java.lang.reflect.*; |
| 12 |
|
|
| 13 |
|
/** |
| 14 |
|
* Abstract base class for tasks that run within a {@link |
| 1061 |
|
setDoneExceptionally((Throwable) ex); |
| 1062 |
|
} |
| 1063 |
|
|
| 1064 |
< |
// Temporary Unsafe mechanics for preliminary release |
| 1065 |
< |
private static Unsafe getUnsafe() throws Throwable { |
| 1064 |
> |
// Unsafe mechanics for jsr166y 3rd party package. |
| 1065 |
> |
private static sun.misc.Unsafe getUnsafe() { |
| 1066 |
|
try { |
| 1067 |
< |
return Unsafe.getUnsafe(); |
| 1067 |
> |
return sun.misc.Unsafe.getUnsafe(); |
| 1068 |
|
} catch (SecurityException se) { |
| 1069 |
|
try { |
| 1070 |
|
return java.security.AccessController.doPrivileged |
| 1071 |
< |
(new java.security.PrivilegedExceptionAction<Unsafe>() { |
| 1072 |
< |
public Unsafe run() throws Exception { |
| 1073 |
< |
return getUnsafePrivileged(); |
| 1071 |
> |
(new java.security.PrivilegedExceptionAction<sun.misc.Unsafe>() { |
| 1072 |
> |
public sun.misc.Unsafe run() throws Exception { |
| 1073 |
> |
return getUnsafeByReflection(); |
| 1074 |
|
}}); |
| 1075 |
|
} catch (java.security.PrivilegedActionException e) { |
| 1076 |
< |
throw e.getCause(); |
| 1076 |
> |
throw new RuntimeException("Could not initialize intrinsics", |
| 1077 |
> |
e.getCause()); |
| 1078 |
|
} |
| 1079 |
|
} |
| 1080 |
|
} |
| 1081 |
|
|
| 1082 |
< |
private static Unsafe getUnsafePrivileged() |
| 1082 |
> |
private static sun.misc.Unsafe getUnsafeByReflection() |
| 1083 |
|
throws NoSuchFieldException, IllegalAccessException { |
| 1084 |
< |
Field f = Unsafe.class.getDeclaredField("theUnsafe"); |
| 1084 |
> |
java.lang.reflect.Field f = |
| 1085 |
> |
sun.misc.Unsafe.class.getDeclaredField("theUnsafe"); |
| 1086 |
|
f.setAccessible(true); |
| 1087 |
< |
return (Unsafe) f.get(null); |
| 1087 |
> |
return (sun.misc.Unsafe) f.get(null); |
| 1088 |
|
} |
| 1089 |
|
|
| 1090 |
< |
private static long fieldOffset(String fieldName) |
| 1091 |
< |
throws NoSuchFieldException { |
| 1092 |
< |
return UNSAFE.objectFieldOffset |
| 1093 |
< |
(ForkJoinTask.class.getDeclaredField(fieldName)); |
| 1094 |
< |
} |
| 1095 |
< |
|
| 1096 |
< |
static final Unsafe UNSAFE; |
| 1097 |
< |
static final long statusOffset; |
| 1098 |
< |
|
| 1099 |
< |
static { |
| 1090 |
> |
private static long fieldOffset(String fieldName, Class<?> klazz) { |
| 1091 |
|
try { |
| 1092 |
< |
UNSAFE = getUnsafe(); |
| 1093 |
< |
statusOffset = fieldOffset("status"); |
| 1094 |
< |
} catch (Throwable e) { |
| 1095 |
< |
throw new RuntimeException("Could not initialize intrinsics", e); |
| 1092 |
> |
return UNSAFE.objectFieldOffset(klazz.getDeclaredField(fieldName)); |
| 1093 |
> |
} catch (NoSuchFieldException e) { |
| 1094 |
> |
// Convert Exception to Error |
| 1095 |
> |
NoSuchFieldError error = new NoSuchFieldError(fieldName); |
| 1096 |
> |
error.initCause(e); |
| 1097 |
> |
throw error; |
| 1098 |
|
} |
| 1099 |
|
} |
| 1100 |
|
|
| 1101 |
+ |
private static final sun.misc.Unsafe UNSAFE = getUnsafe(); |
| 1102 |
+ |
static final long statusOffset = |
| 1103 |
+ |
fieldOffset("status", ForkJoinTask.class); |
| 1104 |
+ |
|
| 1105 |
|
} |
