APR_DECLARE(size_t) port_vmem_max_size(){
PERFORMANCE_INFORMATION pi;
if ( GetPerformanceInfo( &pi, sizeof(pi)) ) {
return (pi.CommitLimit - pi.CommitTotal) * pi.PageSize + port_vmem_committed_size();
} else {
return (size_t)0;
}
}
/*
* Class: org_apache_harmony_lang_management_MemoryMXBeanImpl
* Method: getNonHeapMemoryUsageImpl
* Signature: ()Ljava/lang/management/MemoryUsage;
*/
JNIEXPORT jobject JNICALL Java_org_apache_harmony_lang_management_MemoryMXBeanImpl_getNonHeapMemoryUsageImpl
(JNIEnv * jenv_ext, jobject)
{
TRACE2("management","MemoryMXBeanImpl_getNonHeapMemoryUsageImpl invocation");
Global_Env* genv = VM_Global_State::loader_env;
JNIEnv_Internal *jenv = (JNIEnv_Internal *)jenv_ext;
JavaVM * vm = NULL;
jenv_ext->GetJavaVM(&vm);
jlong init = ((JavaVM_Internal*)vm)->vm_env->init_used_memory
- ((JavaVM_Internal*)vm)->vm_env->init_gc_used_memory;
if (init <= 0) {init = -1;}
jlong used = port_vmem_used_size();
if (used < init) {used = init;}
if (used == -1) {used = 0;}
jlong committed = port_vmem_committed_size();
if (committed < used) {committed = used;}
if (committed == -1) {committed = 0;}
jlong max = port_vmem_max_size();
if ((max < committed) && (max != -1)) {max = committed;}
jclass memoryUsageClazz =jenv->FindClass("java/lang/management/MemoryUsage");
if (jenv->ExceptionCheck()) {return NULL;}
jmethodID memoryUsageClazzConstructor = jenv->GetMethodID(memoryUsageClazz, "<init>", "(JJJJ)V");
if (jenv->ExceptionCheck()) {return NULL;}
jobject memoryUsage = jenv->NewObject(memoryUsageClazz, memoryUsageClazzConstructor, init, used,
committed, max);
return memoryUsage;
};
APR_DECLARE(size_t) port_vmem_reserved_size(){
// TODO: Update this method when/if new common memory manager will be created
return port_vmem_committed_size();
}
APR_DECLARE(size_t) port_vmem_reserved_size(){
// TODO: should return summarized reservaition instead of peak.
return port_vmem_committed_size();
}
APR_DECLARE(size_t) port_vmem_used_size(){
return port_vmem_committed_size();
}
