dByteArrayKlass.cpp

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/* Copyright 1994, 1995 LongView Technologies L.L.C. $Revision: 1.17 $ */
/* Copyright (c) 2006, Sun Microsystems, Inc.
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# include "incls/_precompiled.incl"
# include "incls/_dByteArrayKlass.cpp.incl"
# include <ctype.h>

oop doubleByteArrayKlass::allocateObject() {
  fatal("should never call allocateObject in doubleByteArrayKlass");
  return badOop;
}

oop doubleByteArrayKlass::allocateObjectSize(int size) {
  klassOop k        = as_klassOop();
  int      ni_size  = non_indexable_size();
  int      obj_size = ni_size + 1 + roundTo(size * 2, oopSize) / oopSize;
  // allocate
  doubleByteArrayOop obj = as_doubleByteArrayOop(Universe::allocate(obj_size, (memOop*)&k));
  // header
  memOop(obj)->initialize_header(true, k);
  // instance variables
  memOop(obj)->initialize_body(memOopDesc::header_size(), ni_size);
  // indexables
  oop* base = (oop*) obj->addr();
  oop* end  = base + obj_size;
  // %optimized 'obj->set_length(size)'
  base[ni_size] = as_smiOop(size);
  // %optimized 'for (int index = 1; index <= size; index++)
  //               obj->doubleByte_at_put(index, 0)'
  base = &base[ni_size+1];
  while (base < end) *base++ = (oop) 0;
  return obj;
}

klassOop doubleByteArrayKlass::create_subclass(mixinOop mixin, Format format) {
  if (format == mem_klass || format == doubleByteArray_klass) {
    return doubleByteArrayKlass::create_class(as_klassOop(), mixin);
  }
  return NULL;
}

klassOop doubleByteArrayKlass::create_class(klassOop super_class, mixinOop mixin) {
  doubleByteArrayKlass o;
  return create_generic_class(super_class, mixin, o.vtbl_value());
}

void set_doubleByteArrayKlass_vtbl(Klass* k) {
  doubleByteArrayKlass o;
  k->set_vtbl_value(o.vtbl_value());
}

bool doubleByteArrayKlass::oop_verify(oop obj) {
  assert_doubleByteArray(obj,"Argument must be doubleByteArray");
  return doubleByteArrayOop(obj)->verify();
}

void doubleByteArrayKlass::oop_print_value_on(oop obj, outputStream* st) {
  assert_doubleByteArray(obj,"Argument must be doubleByteArray");
  doubleByteArrayOop array = doubleByteArrayOop(obj);
  int len = array->length();
  int n   = min(MaxElementPrintSize, len);
  st->print("'");
  for(int index = 1; index <= n; index++) {
    int c = array->doubleByte_at(index);
    if (isprint(c)) st->print("%c",   c);
    else            st->print("\\%o", c);
  }
  if (n < len) st->print("...");
  st->print("'");
}

void doubleByteArrayKlass::oop_layout_iterate(oop obj, ObjectLayoutClosure* blk) {
  doubleByte* p   = doubleByteArrayOop(obj)->doubleBytes();
  oop*        l   = doubleByteArrayOop(obj)->length_addr();
  int         len = doubleByteArrayOop(obj)->length();
  memOopKlass::oop_layout_iterate(obj, blk);
  blk->do_oop("length", l);
  blk->begin_indexables();
  for (int index = 1; index <= len; index++) {
    blk->do_indexable_doubleByte(index, p++);
  }
  blk->end_indexables();
}

void doubleByteArrayKlass::oop_oop_iterate(oop obj, OopClosure* blk) {
  oop* l = doubleByteArrayOop(obj)->length_addr();
  memOopKlass::oop_oop_iterate(obj, blk);
  blk->do_oop(l);
}

int doubleByteArrayKlass::oop_scavenge_contents(oop obj) {
  memOopKlass::oop_scavenge_contents(obj);
  return object_size(doubleByteArrayOop(obj)->length());  
}

int doubleByteArrayKlass::oop_scavenge_tenured_contents(oop obj) {
  memOopKlass::oop_scavenge_tenured_contents(obj);
  return object_size(doubleByteArrayOop(obj)->length());  
}

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