static int string_obj_comparator(const void *key1, const void *key2)
{
struct vm_object *array1, *array2;
jint offset1, offset2;
jint count1, count2;
count1 = field_get_int(key1, vm_java_lang_String_count);
count2 = field_get_int(key2, vm_java_lang_String_count);
if (count1 != count2)
return -1;
offset1 = field_get_int(key1, vm_java_lang_String_offset);
offset2 = field_get_int(key2, vm_java_lang_String_offset);
array1 = field_get_object(key1, vm_java_lang_String_value);
array2 = field_get_object(key2, vm_java_lang_String_value);
int fsize = get_vmtype_size(J_CHAR);
return memcmp(array1->fields + offset1 * fsize,
array2->fields + offset2 * fsize,
count1 * fsize);
}
/*
* Compare key1 string and key2 weak reference to string.
*/
static bool string_obj_equals(const void *key1, const void *key2)
{
struct vm_object *array1, *array2;
jint offset1, offset2;
jint count1, count2;
count1 = field_get_int(key1, vm_java_lang_String_count);
count2 = field_get_int(key2, vm_java_lang_String_count);
if (count1 != count2)
return false;
offset1 = field_get_int(key1, vm_java_lang_String_offset);
offset2 = field_get_int(key2, vm_java_lang_String_offset);
array1 = field_get_object(key1, vm_java_lang_String_value);
array2 = field_get_object(key2, vm_java_lang_String_value);
int fsize = vmtype_get_size(J_CHAR);
return memcmp(vm_array_elems(array1) + offset1 * fsize,
vm_array_elems(array2) + offset2 * fsize,
count1 * fsize) == 0;
}
struct vm_field *vm_object_to_vm_field(struct vm_object *field)
{
struct vm_object *class;
struct vm_class *vmc;
int slot;
if (!field)
return throw_npe();
if (vm_java_lang_reflect_VMField != NULL) { /* Classpath 0.98 */
if (vm_object_is_instance_of(field, vm_java_lang_reflect_Field))
field = field_get_object(field, vm_java_lang_reflect_Field_f);
class = field_get_object(field, vm_java_lang_reflect_VMField_clazz);
slot = field_get_int(field, vm_java_lang_reflect_VMField_slot);
} else {
static unsigned long string_obj_hash(const void *key)
{
struct vm_object *array;
unsigned long hash;
jint offset;
jint count;
offset = field_get_int(key, vm_java_lang_String_offset);
count = field_get_int(key, vm_java_lang_String_count);
array = field_get_object(key, vm_java_lang_String_value);
hash = 0;
for (jint i = 0; i < count; i++)
hash += 31 * hash + array_get_field_char(array, i + offset);
return hash;
}