[RFA] Suspend counting for JDWP

[Keith Seitz]

Bryce McKinlay wrote:

> Clearly, "jvmtiError SuspendThread(jvmtiEnv* env, jthread thread)" is 
> more-or-less equivalent to "_Jv_DebugSuspendThread(_Jv_Thread_t)".

Yep, they pretty much are.

> Its your call. Certainly if you think JVMTI is going to hold up JDWP 
> work, I wouldn't want to see too much time spent on it. But, I think 
> that implementing the parts needed by JDWP shouldn't be a huge 
> undertaking, It should actually be helpful, by clearly defining the 
> interfaces through which JDWP should communicate with the VM, rather 
> than ending up with bits and pieces of JDWP support code scattered around.

I don't really have a definitive answer on that. By and large, I agree 
with you. JVMTI has always been on the radar, but I've always been 
hesitant to start jumping into another project without any intention of 
finishing it for the foreseeable future.

Any way, I think I'll just see about setting something up to start JVMTI 
  stuff for this. With careful warnings about it being almost entirely 
unimplemented, it shouldn't really hurt.

Keith