src/share/vm/prims/whitebox.cpp

rev 12504 : [mq]: whitebox
rev 12506 : [mq]: list_phases

*** 353,362 ****
--- 353,399 ----
  WB_ENTRY(jlong, WB_GetHeapAlignment(JNIEnv* env, jobject o))
    size_t alignment = Universe::heap()->collector_policy()->heap_alignment();
    return (jlong)alignment;
  WB_END
  
+ WB_ENTRY(jboolean, WB_SupportsConcurrentGCPhaseControl(JNIEnv* env, jobject o))
+   return Universe::heap()->supports_concurrent_phase_control();
+ WB_END
+ 
+ WB_ENTRY(jobjectArray, WB_GetConcurrentGCPhases(JNIEnv* env, jobject o))
+   const char* const* phases = Universe::heap()->concurrent_phases();
+   jint nphases = 0;
+   for ( ; phases[nphases] != NULL; ++nphases) ;
+ 
+   ResourceMark rm(thread);
+   ThreadToNativeFromVM ttn(thread);
+   jclass clazz = env->FindClass(vmSymbols::java_lang_Object()->as_C_string());
+   CHECK_JNI_EXCEPTION_(env, NULL);
+ 
+   jobjectArray result = env->NewObjectArray(nphases, clazz, NULL);
+   CHECK_JNI_EXCEPTION_(env, NULL);
+ 
+   // If push fails, return with pending exception.
+   if (env->PushLocalFrame(nphases) < 0) return NULL;
+   for (jint i = 0; i < nphases; ++i) {
+     jstring phase = env->NewStringUTF(phases[i]);
+     CHECK_JNI_EXCEPTION_(env, NULL);
+     env->SetObjectArrayElement(result, i, phase);
+     CHECK_JNI_EXCEPTION_(env, NULL);
+   }
+   env->PopLocalFrame(NULL);
+ 
+   return result;
+ WB_END
+ 
+ WB_ENTRY(jboolean, WB_RequestConcurrentGCPhase(JNIEnv* env, jobject o, jstring name))
+   Handle h_name(THREAD, JNIHandles::resolve(name));
+   ResourceMark rm;
+   const char* c_name = java_lang_String::as_utf8_string(h_name());
+   return Universe::heap()->request_concurrent_phase(c_name);
+ WB_END
+ 
  #if INCLUDE_ALL_GCS
  WB_ENTRY(jboolean, WB_G1IsHumongous(JNIEnv* env, jobject o, jobject obj))
    G1CollectedHeap* g1 = G1CollectedHeap::heap();
    oop result = JNIHandles::resolve(obj);
    const HeapRegion* hr = g1->heap_region_containing(result);
*** 1903,1912 ****
--- 1940,1954 ----
                                                        (void*)&WB_AddCompilerDirective },
    {CC"removeCompilerDirective",   CC"(I)V",             (void*)&WB_RemoveCompilerDirective },
    {CC"currentGC",                 CC"()I",            (void*)&WB_CurrentGC},
    {CC"allSupportedGC",            CC"()I",            (void*)&WB_AllSupportedGC},
    {CC"gcSelectedByErgo",          CC"()Z",            (void*)&WB_GCSelectedByErgo},
+   {CC"supportsConcurrentGCPhaseControl", CC"()Z",     (void*)&WB_SupportsConcurrentGCPhaseControl},
+   {CC"getConcurrentGCPhases",     CC"()[Ljava/lang/String;",
+                                                       (void*)&WB_GetConcurrentGCPhases},
+   {CC"requestConcurrentGCPhase0", CC"(Ljava/lang/String;)Z",
+                                                       (void*)&WB_RequestConcurrentGCPhase},
  };
  
  #undef CC
  
  JVM_ENTRY(void, JVM_RegisterWhiteBoxMethods(JNIEnv* env, jclass wbclass))