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8140802: Clean up and refactor of class loading code for CDS

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Reviewed-by: jiangli, acorn, coleenp
This commit is contained in:
Ioi Lam 2015-08-18 11:27:23 -07:00
parent 0580d65a1c
commit 87b0df30ed
20 changed files with 426 additions and 74 deletions
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12
hotspot/src/share/vm/classfile/classLoaderData.hpp
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@ -187,6 +187,9 @@ class ClassLoaderData : public CHeapObj<mtClass> {
// Support for walking class loader data objects
ClassLoaderData* _next; /// Next loader_datas created
// CDS
int _shared_class_loader_id;
// ReadOnly and ReadWrite metaspaces (static because only on the null
// class loader for now).
static Metaspace* _ro_metaspace;
@ -308,6 +311,15 @@ class ClassLoaderData : public CHeapObj<mtClass> {
Metaspace* ro_metaspace();
Metaspace* rw_metaspace();
void initialize_shared_metaspaces();
int shared_class_loader_id() {
return _shared_class_loader_id;
}
void set_shared_class_loader_id(int id) {
assert(id >= 0, "sanity");
assert(_shared_class_loader_id <0, "cannot be assigned more than once");
_shared_class_loader_id = id;
}
};
// An iterator that distributes Klasses to parallel worker threads.