archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-09-21 19:44:41 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

6862945: 4/3 conversion of jmethodID to methodOop in JVMTI is too expensive

Browse source 
Refactor JNIHandles::checked_resolve_jmethod_id() into fast and paranoid parts.

Reviewed-by: never, alanb
This commit is contained in:
Daniel D. Daugherty 2009-08-11 11:57:51 -06:00
parent 10e13deca1
commit aca1d9534f
2 changed files with 17 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

14
hotspot/src/share/vm/runtime/jniHandles.hpp
View file

@ -1,5 +1,5 @@
/*
* Copyright 1998-2007 Sun Microsystems, Inc. All Rights Reserved.
* Copyright 1998-2009 Sun Microsystems, Inc. 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
@ -196,12 +196,16 @@ inline methodOop JNIHandles::resolve_jmethod_id(jmethodID mid) {
};
inline methodOop JNIHandles::checked_resolve_jmethod_id(jmethodID mid) {
jobject handle = (jobject)mid;
if (is_weak_global_handle(handle)) {
return (methodOop) resolve_non_null(handle);
} else {
if (mid == NULL) {
return (methodOop) NULL;
}
oop o = resolve_non_null((jobject) mid);
if (!o->is_method()) {
return (methodOop) NULL;
}
return (methodOop) o;
};