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8074980: add WhiteBox API to get a flag value for a method

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Reviewed-by: kvn, fzhinkin
This commit is contained in:
Igor Ignatyev 2015-03-12 19:11:17 +03:00
parent b5eaf480f9
commit 8a235045ca
1 changed files with 19 additions and 1 deletions
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20
test/lib/sun/hotspot/WhiteBox.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -27,6 +27,7 @@ package sun.hotspot;
import java.lang.reflect.Executable;
import java.util.Arrays;
import java.util.List;
import java.util.function.BiFunction;
import java.util.function.Function;
import java.util.stream.Stream;
import java.security.BasicPermission;
@ -250,6 +251,23 @@ public class WhiteBox {
}
return offset;
}
public native Boolean getMethodBooleanOption(Executable method, String name);
public native Long getMethodIntxOption(Executable method, String name);
public native Long getMethodUintxOption(Executable method, String name);
public native Double getMethodDoubleOption(Executable method, String name);
public native String getMethodStringOption(Executable method, String name);
private final List<BiFunction<Executable,String,Object>> methodOptionGetters
= Arrays.asList(this::getMethodBooleanOption, this::getMethodIntxOption,
this::getMethodUintxOption, this::getMethodDoubleOption,
this::getMethodStringOption);
public Object getMethodOption(Executable method, String name) {
return methodOptionGetters.stream()
.map(f -> f.apply(method, name))
.filter(x -> x != null)
.findAny()
.orElse(null);
}
// Safepoint Checking
public native void assertMatchingSafepointCalls(boolean mutexSafepointValue, boolean attemptedNoSafepointValue);