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8284161: Implementation of Virtual Threads (Preview)

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Co-authored-by: Ron Pressler <rpressler@openjdk.org>
Co-authored-by: Alan Bateman <alanb@openjdk.org>
Co-authored-by: Erik Österlund <eosterlund@openjdk.org>
Co-authored-by: Andrew Haley <aph@openjdk.org>
Co-authored-by: Rickard Bäckman <rbackman@openjdk.org>
Co-authored-by: Markus Grönlund <mgronlun@openjdk.org>
Co-authored-by: Leonid Mesnik <lmesnik@openjdk.org>
Co-authored-by: Serguei Spitsyn <sspitsyn@openjdk.org>
Co-authored-by: Chris Plummer <cjplummer@openjdk.org>
Co-authored-by: Coleen Phillimore <coleenp@openjdk.org>
Co-authored-by: Robbin Ehn <rehn@openjdk.org>
Co-authored-by: Stefan Karlsson <stefank@openjdk.org>
Co-authored-by: Thomas Schatzl <tschatzl@openjdk.org>
Co-authored-by: Sergey Kuksenko <skuksenko@openjdk.org>
Reviewed-by: lancea, eosterlund, rehn, sspitsyn, stefank, tschatzl, dfuchs, lmesnik, dcubed, kevinw, amenkov, dlong, mchung, psandoz, bpb, coleenp, smarks, egahlin, mseledtsov, coffeys, darcy
This commit is contained in:
Alan Bateman 2022-05-07 08:06:16 +00:00
parent 5212535a27
commit 9583e3657e
1133 changed files with 95935 additions and 8335 deletions
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16
src/hotspot/share/oops/instanceKlass.cpp
View file

@ -65,6 +65,7 @@
#include "oops/instanceKlass.inline.hpp"
#include "oops/instanceMirrorKlass.hpp"
#include "oops/instanceOop.hpp"
#include "oops/instanceStackChunkKlass.hpp"
#include "oops/klass.inline.hpp"
#include "oops/method.hpp"
#include "oops/oop.inline.hpp"
@ -163,6 +164,12 @@ static inline bool is_class_loader(const Symbol* class_name,
return false;
}
static inline bool is_stack_chunk_class(const Symbol* class_name,
const ClassLoaderData* loader_data) {
return (class_name == vmSymbols::jdk_internal_vm_StackChunk() &&
loader_data->is_the_null_class_loader_data());
}
// private: called to verify that k is a static member of this nest.
// We know that k is an instance class in the same package and hence the
// same classloader.
@ -440,17 +447,20 @@ InstanceKlass* InstanceKlass::allocate_instance_klass(const ClassFileParser& par
// Allocation
if (REF_NONE == parser.reference_type()) {
if (class_name == vmSymbols::java_lang_Class()) {
// mirror
// mirror - java.lang.Class
ik = new (loader_data, size, THREAD) InstanceMirrorKlass(parser);
} else if (is_stack_chunk_class(class_name, loader_data)) {
// stack chunk
ik = new (loader_data, size, THREAD) InstanceStackChunkKlass(parser);
} else if (is_class_loader(class_name, parser)) {
// class loader
// class loader - java.lang.ClassLoader
ik = new (loader_data, size, THREAD) InstanceClassLoaderKlass(parser);
} else {
// normal
ik = new (loader_data, size, THREAD) InstanceKlass(parser);
}
} else {
// reference
// java.lang.ref.Reference
ik = new (loader_data, size, THREAD) InstanceRefKlass(parser);
}