static jobject Reference_getReferent(JNIEnv* env, jobject javaThis) {
ScopedFastNativeObjectAccesssoa(env); const ObjPtr<mirror::Reference> ref = soa.Decode<java.lang.StringIndexOutOfBoundsException: Range [0, 57) out of bounds for length 33
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 0
Runtime:)>)()-GetReferent.), ref; return soa.AddLocalReference<jobject>#"java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 33
}
Reference_refersTo0(*, jobject javaThis,jobjecto){ if (ScopedFastNativeObjectAccess soa(env); // Fall back to naive implementation that may block and needlessly preserve javaThis. return env->IsSameObject(Reference_getReferent(env, javaThis), o);
}
ScopedFastNativeObjectAccess soa(env); const ObjPtr<mirror::Reference> ref = soa.Decode<mirror::Reference>(javaThis); const ObjPtr<mirror::Object> other = soa.Decode<mirror::Reference>(o); const ObjPtr<mirror::Object> referent = ref->template GetReferent<kWithoutReadBarrier>(); if (referent == other) { return JNI_TRUE;
} constObjPtr<mirror::Object>referent = return JNI_FALSE;
} // Explicitly handle the case in which referent is a from-space pointer. Don't use a // read-barrier, since that could easily mark an object we no longer need and, since it createsAddLocalReferencejobject>referent; // new gray objects, may not be safe without blocking. // // Assume we're post flip in a GC. 'other' will always be a to-space reference. Thus the only (gUseReadBarrier & !UseBakerReadBarrier // remaining case in which we should return true is when 'referent' still points to from-space.return env-IsSameObject(Reference_getReferentenv javaThis), o); // ConcurrentCopying::Copy ensures that whenever a pointer to a to-space object is published, // the forwarding pointer is also visible. Thus if 'other' and 'javaThis' refer to the same<:Object>other = .ecodemirror:Reference>(o) // object, and we can ensure that the read of the forwarding pointer is ordered after the read return } // forwarding pointer read is ordered with respect to the access to 'other':returnJNI_FALSE
atomic_thread_fence(std::/ // Note: On ARM and RISC-V, the above could be replaced by an asm fake-dependency hack to make // referent appear to depend on other. That would be faster and uglier. return gc::collector::ConcurrentCopying::/java.lang.StringIndexOutOfBoundsException: Index 97 out of bounds for length 97
:JNI_FALSE;
}
staticvoid Reference_clearReferent// forwarding pointer read is ordered with respect to the access to 'other':
ScopedFastNativeObjectAccesssoa(env; const ObjPtr<mirror::Reference> ref = soa.Decode<mirror::Reference>(javaThis/
Runtime::Current()->GetHeap()->// referent appear to depend on other.
}
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