src/share/vm/prims/whitebox.cpp

*** 803,852 ****
    MonitorLockerEx mo(Compilation_lock, Mutex::_no_safepoint_check_flag);
    WhiteBox::compilation_locked = false;
    mo.notify_all();
  WB_END
  
! void WhiteBox::sweeper_thread_entry(JavaThread* thread, TRAPS) {
!   guarantee(WhiteBoxAPI, "internal testing API :: WhiteBox has to be enabled");
!   {
!     MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
!     NMethodSweeper::_should_sweep = true;
!   }
!   NMethodSweeper::possibly_sweep();
! }
! 
! JavaThread* WhiteBox::create_sweeper_thread(TRAPS) {
!   // create sweeper thread w/ custom entry -- one iteration instead of loop
!   CodeCacheSweeperThread* sweeper_thread = new CodeCacheSweeperThread();
!   sweeper_thread->set_entry_point(&WhiteBox::sweeper_thread_entry);
! 
!   // create j.l.Thread object and associate it w/ sweeper thread
!   {
!     // inherit deamon property from current thread
!     bool is_daemon = java_lang_Thread::is_daemon(JavaThread::current()->threadObj());
! 
!     HandleMark hm(THREAD);
!     Handle thread_group(THREAD, Universe::system_thread_group());
!     const char* name = "WB Sweeper thread";
!     sweeper_thread->allocate_threadObj(thread_group, name, is_daemon, THREAD);
!   }
! 
!   {
!     MutexLocker mu(Threads_lock, THREAD);
!     Threads::add(sweeper_thread);
!   }
!   return sweeper_thread;
! }
! 
! WB_ENTRY(jobject, WB_ForceNMethodSweep(JNIEnv* env, jobject o))
!   JavaThread* sweeper_thread = WhiteBox::create_sweeper_thread(Thread::current());
!   if (sweeper_thread == NULL) {
!     return NULL;
!   }
!   jobject result = JNIHandles::make_local(env, sweeper_thread->threadObj());
!   Thread::start(sweeper_thread);
!   return result;
  WB_END
  
  WB_ENTRY(jboolean, WB_IsInStringTable(JNIEnv* env, jobject o, jstring javaString))
    ResourceMark rm(THREAD);
    int len;
--- 803,815 ----
    MonitorLockerEx mo(Compilation_lock, Mutex::_no_safepoint_check_flag);
    WhiteBox::compilation_locked = false;
    mo.notify_all();
  WB_END
  
! WB_ENTRY(void, WB_ForceNMethodSweep(JNIEnv* env, jobject o))
!   // Force a code cache sweep and block until it finished
!   NMethodSweeper::force_sweep();
  WB_END
  
  WB_ENTRY(jboolean, WB_IsInStringTable(JNIEnv* env, jobject o, jstring javaString))
    ResourceMark rm(THREAD);
    int len;
*** 1383,1393 ****
    {CC"incMetaspaceCapacityUntilGC", CC"(J)J",         (void*)&WB_IncMetaspaceCapacityUntilGC },
    {CC"metaspaceCapacityUntilGC", CC"()J",             (void*)&WB_MetaspaceCapacityUntilGC },
    {CC"getCPUFeatures",     CC"()Ljava/lang/String;",  (void*)&WB_GetCPUFeatures     },
    {CC"getNMethod",         CC"(Ljava/lang/reflect/Executable;Z)[Ljava/lang/Object;",
                                                        (void*)&WB_GetNMethod         },
!   {CC"forceNMethodSweep0", CC"()Ljava/lang/Thread;",  (void*)&WB_ForceNMethodSweep  },
    {CC"allocateCodeBlob",   CC"(II)J",                 (void*)&WB_AllocateCodeBlob   },
    {CC"freeCodeBlob",       CC"(J)V",                  (void*)&WB_FreeCodeBlob       },
    {CC"getCodeHeapEntries", CC"(I)[Ljava/lang/Object;",(void*)&WB_GetCodeHeapEntries },
    {CC"getCompilationActivityMode",
                             CC"()I",                   (void*)&WB_GetCompilationActivityMode},
--- 1346,1356 ----
    {CC"incMetaspaceCapacityUntilGC", CC"(J)J",         (void*)&WB_IncMetaspaceCapacityUntilGC },
    {CC"metaspaceCapacityUntilGC", CC"()J",             (void*)&WB_MetaspaceCapacityUntilGC },
    {CC"getCPUFeatures",     CC"()Ljava/lang/String;",  (void*)&WB_GetCPUFeatures     },
    {CC"getNMethod",         CC"(Ljava/lang/reflect/Executable;Z)[Ljava/lang/Object;",
                                                        (void*)&WB_GetNMethod         },
!   {CC"forceNMethodSweep",  CC"()V",                   (void*)&WB_ForceNMethodSweep  },
    {CC"allocateCodeBlob",   CC"(II)J",                 (void*)&WB_AllocateCodeBlob   },
    {CC"freeCodeBlob",       CC"(J)V",                  (void*)&WB_FreeCodeBlob       },
    {CC"getCodeHeapEntries", CC"(I)[Ljava/lang/Object;",(void*)&WB_GetCodeHeapEntries },
    {CC"getCompilationActivityMode",
                             CC"()I",                   (void*)&WB_GetCompilationActivityMode},