[RFA/JVMTI] SuspendThread and ResumeThread

[Keith Seitz]

Hi,

As requested here are the JVMTI functions SuspendThread and 
ResumeThread. They're very basic. They don't check for some error 
conditions (like checking whether the thread to be suspended is already 
suspended). I have them working in my sandbox breakpoint-enabled gij.

I've also taken this moment to correct two inconsistencies: removed 
_Jv_ThreadDebug* from posix-threads.cc since this JVMTI implementation 
supplants it; and moved the ifdefs governing the inclusion of 
_Jv_SuspendThread and _Jv_ResumeThread in boehm.cc. Now those functions 
are always defined, but the contents are ifdef'd. If/when my other GC 
cleanup patch is accepted, we can remove these ifdefs altogether.

Keith

ChangeLog
2006-07-21  Keith Seitz  <keiths@redhat.com>

         * boehm.cc (_Jv_SuspendThread): Don't ifdef the function 
declaration,
         just the contents.
         (_Jv_ResumeThread): Likewise.
         * posix-threads.cc (_Jv_ThreadDebugResume): Remove. Moving to 
JVMTI.
         (_Jv_ThreadDebugSuspend): Ditto.
         (_Jv_ThreadDebugSuspendCount): Ditto.
         * jvmti.cc (_Jv_JVMTI_SuspentThread): New function.
         (_Jv_JVMTI_ResumeThread): New function.
         (_Jv_JVMTI_Interface): Define SuspendThread and ResumeThread.
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