void typeArrayKlass::copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS) {
assert(s->is_typeArray(), "must be type array");
// Check destination
if (!d->is_typeArray() || element_type() != typeArrayKlass::cast(d->klass())->element_type()) {
THROW(vmSymbols::java_lang_ArrayStoreException());
}
// Check is all offsets and lengths are non negative
if (src_pos < 0 || dst_pos < 0 || length < 0) {
THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
}
// Check if the ranges are valid
if ( (((unsigned int) length + (unsigned int) src_pos) > (unsigned int) s->length())
|| (((unsigned int) length + (unsigned int) dst_pos) > (unsigned int) d->length()) ) {
THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
}
// Check zero copy
if (length == 0)
return;
// This is an attempt to make the copy_array fast.
int l2es = log2_element_size();
int ihs = array_header_in_bytes() / wordSize;
char* src = (char*) ((oop*)s + ihs) + ((size_t)src_pos << l2es);
char* dst = (char*) ((oop*)d + ihs) + ((size_t)dst_pos << l2es);
Copy::conjoint_memory_atomic(src, dst, (size_t)length << l2es);
}
void typeArrayKlass::copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS) {
assert(s->is_typeArray(), "must be type array");
// Check destination
if (!d->is_typeArray() || element_type() != typeArrayKlass::cast(d->klass())->element_type()) {
THROW(vmSymbols::java_lang_ArrayStoreException());
}
// Check is all offsets and lengths are non negative
if (src_pos < 0 || dst_pos < 0 || length < 0) {
THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
}
// Check if the ranges are valid
if ( (((unsigned int) length + (unsigned int) src_pos) > (unsigned int) s->length())
|| (((unsigned int) length + (unsigned int) dst_pos) > (unsigned int) d->length()) ) {
THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
}
// This is an attempt to make the copy_array fast.
// NB: memmove takes care of overlapping memory segments.
// Potential problem: memmove is not guaranteed to be word atomic
// Revisit in Merlin
int l2es = log2_element_size();
int ihs = array_header_in_bytes() / wordSize;
char* src = (char*) ((oop*)s + ihs) + (src_pos << l2es);
char* dst = (char*) ((oop*)d + ihs) + (dst_pos << l2es);
memmove(dst, src, length << l2es);
}
void TypeArrayKlass::copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS) {
assert(s->is_typeArray(), "must be type array");
// Check destination
if (!d->is_typeArray() || element_type() != TypeArrayKlass::cast(d->klass())->element_type()) {
THROW(vmSymbols::java_lang_ArrayStoreException());
}
// Check is all offsets and lengths are non negative
if (src_pos < 0 || dst_pos < 0 || length < 0) {
THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
}
// Check if the ranges are valid
if ( (((unsigned int) length + (unsigned int) src_pos) > (unsigned int) s->length())
|| (((unsigned int) length + (unsigned int) dst_pos) > (unsigned int) d->length()) ) {
THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
}
// Check zero copy
if (length == 0)
return;
#ifdef PROFILE_OBJECT_INFO
if (ProfileObjectInfo) {
ResourceMark rm;
if (s->poi()) {
s->poi()->batch_mark_load(length);
}
if (d->poi()) {
d->poi()->batch_mark_store(length);
}
}
#endif
#ifdef PROFILE_OBJECT_ADDRESS_INFO
if (ProfileObjectAddressInfo) {
ObjectAddressInfoTable *oait = Universe::object_address_info_table();
oait->batch_mark_load (s, length);
oait->batch_mark_store(d, length);
}
#endif
// This is an attempt to make the copy_array fast.
int l2es = log2_element_size();
int ihs = array_header_in_bytes() / wordSize;
char* src = (char*) ((oop*)s + ihs) + ((size_t)src_pos << l2es);
char* dst = (char*) ((oop*)d + ihs) + ((size_t)dst_pos << l2es);
Copy::conjoint_memory_atomic(src, dst, (size_t)length << l2es);
}
JavaArgumentUnboxer(Symbol* signature, JavaCallArguments* jca, arrayOop args, bool is_static) : SignatureIterator(signature) {
this->_return_type = T_ILLEGAL;
_jca = jca;
_index = 0;
_args = args;
if (!is_static) {
_jca->push_oop(next_arg(T_OBJECT));
}
iterate();
assert(_index == args->length(), "arg count mismatch with signature");
}
oop next_arg(BasicType expectedType) {
assert(_index < _args->length(), "out of bounds");
oop arg=((objArrayOop) (_args))->obj_at(_index++);
assert(expectedType == T_OBJECT || java_lang_boxing_object::is_instance(arg, expectedType), "arg type mismatch");
return arg;
}
