On Wed, 11 Jan 2023 10:01:57 GMT, Afshin Zafari <d...@openjdk.org> wrote:
>> The JvmtiTagMap code adds/updates and removes the entries like below in two
>> places which could probably be simplified, but I think that's outside the
>> scope of this RFE. I suggest removing the bool return from add, remove and
>> update, and add the assert(true) in the remove case. There's already an
>> assert that add/update happened in the other cases.
>>
>> ``` // if the object is not already tagged then we tag it
>> if (found_tag == 0) {
>> if (tag != 0) {
>> hashmap->add(o, tag);
>> } else {
>> // no-op
>> }
>> } else {
>> // if the object is already tagged then we either update
>> // the tag (if a new tag value has been provided)
>> // or remove the object if the new tag value is 0.
>> if (tag == 0) {
>> hashmap->remove(o);
>> } else {
>> hashmap->update(o, tag);
>> }
>> }
>
> The methods of HashmapTable are void and have assert to verify the expected
> function (add/update/remove) is done.
I'm still somewhat concerned about the use of this API and how it will behave
in product mode, but okay ...
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PR: https://git.openjdk.org/jdk/pull/11288
