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src/share/vm/prims/methodHandles.cpp
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*** 273,284 ****
// The clazz must be eagerly stored, because it provides a GC
// root to help keep alive the Method*.
// If relevant, the vtable or itable value is stored as vmindex.
// This is done eagerly, since it is readily available without
// constructing any new objects.
- // TO DO: maybe intern mname_oop
- m->method_holder()->add_member_name(m->method_idnum(), mname);
return mname();
}
oop MethodHandles::init_field_MemberName(Handle mname, fieldDescriptor& fd, bool is_setter) {
--- 273,282 ----
*** 930,1021 ****
// return number of elements we at leasted wanted to initialize
return rfill + overflow;
}
- //------------------------------------------------------------------------------
- // MemberNameTable
- //
-
- MemberNameTable::MemberNameTable(int methods_cnt)
- : GrowableArray<jweak>(methods_cnt, true) {
- assert_locked_or_safepoint(MemberNameTable_lock);
- }
-
- MemberNameTable::~MemberNameTable() {
- assert_locked_or_safepoint(MemberNameTable_lock);
- int len = this->length();
-
- for (int idx = 0; idx < len; idx++) {
- jweak ref = this->at(idx);
- JNIHandles::destroy_weak_global(ref);
- }
- }
-
- void MemberNameTable::add_member_name(int index, jweak mem_name_wref) {
- assert_locked_or_safepoint(MemberNameTable_lock);
- this->at_put_grow(index, mem_name_wref);
- }
-
- // Return a member name oop or NULL.
- oop MemberNameTable::get_member_name(int index) {
- assert_locked_or_safepoint(MemberNameTable_lock);
-
- jweak ref = this->at(index);
- oop mem_name = JNIHandles::resolve(ref);
- return mem_name;
- }
-
- #if INCLUDE_JVMTI
- oop MemberNameTable::find_member_name_by_method(Method* old_method) {
- assert_locked_or_safepoint(MemberNameTable_lock);
- oop found = NULL;
- int len = this->length();
-
- for (int idx = 0; idx < len; idx++) {
- oop mem_name = JNIHandles::resolve(this->at(idx));
- if (mem_name == NULL) {
- continue;
- }
- Method* method = (Method*)java_lang_invoke_MemberName::vmtarget(mem_name);
- if (method == old_method) {
- found = mem_name;
- break;
- }
- }
- return found;
- }
-
- // It is called at safepoint only
- void MemberNameTable::adjust_method_entries(Method** old_methods, Method** new_methods,
- int methods_length, bool *trace_name_printed) {
- assert(SafepointSynchronize::is_at_safepoint(), "only called at safepoint");
- // search the MemberNameTable for uses of either obsolete or EMCP methods
- for (int j = 0; j < methods_length; j++) {
- Method* old_method = old_methods[j];
- Method* new_method = new_methods[j];
- oop mem_name = find_member_name_by_method(old_method);
- if (mem_name != NULL) {
- java_lang_invoke_MemberName::adjust_vmtarget(mem_name, new_method);
-
- if (RC_TRACE_IN_RANGE(0x00100000, 0x00400000)) {
- if (!(*trace_name_printed)) {
- // RC_TRACE_MESG macro has an embedded ResourceMark
- RC_TRACE_MESG(("adjust: name=%s",
- old_method->method_holder()->external_name()));
- *trace_name_printed = true;
- }
- // RC_TRACE macro has an embedded ResourceMark
- RC_TRACE(0x00400000, ("MemberName method update: %s(%s)",
- new_method->name()->as_C_string(),
- new_method->signature()->as_C_string()));
- }
- }
- }
- }
- #endif // INCLUDE_JVMTI
-
//
// Here are the native methods in java.lang.invoke.MethodHandleNatives
// They are the private interface between this JVM and the HotSpot-specific
// Java code that implements JSR 292 method handles.
//
--- 928,937 ----
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