jl_array_t *jl_ptr_to_array(jl_type_t *atype, void *data, jl_tuple_t *dims,
int julia_mallocated)
{
size_t i, elsz, nel=1;
jl_array_t *a;
size_t ndims = jl_tuple_len(dims);
for(i=0; i < ndims; i++) {
nel *= jl_unbox_long(jl_tupleref(dims, i));
}
jl_type_t *el_type = (jl_type_t*)jl_tparam0(atype);
int isunboxed = jl_is_bits_type(el_type);
if (isunboxed)
elsz = jl_bitstype_nbits(el_type)/8;
else
elsz = sizeof(void*);
int ndimwords = (ndims > 2 ? (ndims-2) : 0);
#ifndef __LP64__
// on 32-bit, ndimwords must be odd to preserve 8-byte alignment
ndimwords += (~ndimwords)&1;
#endif
a = allocobj(sizeof(jl_array_t) + ndimwords*sizeof(size_t));
a->type = atype;
a->data = data;
a->length = nel;
a->elsize = elsz;
a->ptrarray = !isunboxed;
a->ndims = ndims;
if (julia_mallocated) {
a->reshaped = 0;
jl_gc_acquire_buffer(data);
}
else {
// this marks the array as not owning its buffer
a->reshaped = 1;
*((jl_array_t**)(&a->_space[0] + ndimwords*sizeof(size_t))) = a;
}
if (ndims == 1) {
a->nrows = a->length;
a->maxsize = a->length;
a->offset = 0;
}
else {
size_t *adims = &a->nrows;
for(i=0; i < ndims; i++) {
adims[i] = jl_unbox_long(jl_tupleref(dims, i));
}
}
return a;
}
jl_mallocptr_t *jl_gc_managed_malloc(size_t sz)
{
if (allocd_bytes > collect_interval) {
jl_gc_collect();
}
sz = (sz+15) & -16;
void *b = malloc_a16(sz);
if (b == NULL)
jl_throw(jl_memory_exception);
allocd_bytes += sz;
return jl_gc_acquire_buffer(b, sz, 1);
}
jl_array_t *jl_ptr_to_array(jl_type_t *atype, void *data, jl_tuple_t *dims,
int own_buffer)
{
size_t i, elsz, nel=1;
jl_array_t *a;
size_t ndims = jl_tuple_len(dims);
for(i=0; i < ndims; i++) {
nel *= jl_unbox_long(jl_tupleref(dims, i));
}
jl_type_t *el_type = (jl_type_t*)jl_tparam0(atype);
int isunboxed = jl_is_bits_type(el_type);
if (isunboxed)
elsz = jl_bitstype_nbits(el_type)/8;
else
elsz = sizeof(void*);
int ndimwords = jl_array_ndimwords(ndims);
a = allocobj((sizeof(jl_array_t) + ndimwords*sizeof(size_t)+15)&-16);
a->type = atype;
a->data = data;
a->length = nel;
a->elsize = elsz;
a->ptrarray = !isunboxed;
a->ndims = ndims;
if (own_buffer) {
a->ismalloc = 1;
jl_array_data_owner(a) = (jl_value_t*)jl_gc_acquire_buffer(data,nel*elsz);
}
else {
a->ismalloc = 0;
jl_array_data_owner(a) = (jl_value_t*)a;
}
if (ndims == 1) {
a->nrows = a->length;
a->maxsize = a->length;
a->offset = 0;
}
else {
size_t *adims = &a->nrows;
for(i=0; i < ndims; i++) {
adims[i] = jl_unbox_long(jl_tupleref(dims, i));
}
}
return a;
}
// ** NOTE: julia_mallocated means buffer was allocated using julia_malloc.
// using the address of another array does not work!!
jl_array_t *jl_ptr_to_array_1d(jl_type_t *atype, void *data, size_t nel,
int julia_mallocated)
{
size_t elsz;
jl_array_t *a;
jl_type_t *el_type = (jl_type_t*)jl_tparam0(atype);
int isunboxed = jl_is_bits_type(el_type);
if (isunboxed)
elsz = jl_bitstype_nbits(el_type)/8;
else
elsz = sizeof(void*);
a = allocobj(sizeof(jl_array_t));
a->type = atype;
a->data = data;
a->length = nel;
a->elsize = elsz;
a->ptrarray = !isunboxed;
a->ndims = 1;
if (julia_mallocated) {
a->reshaped = 0;
jl_gc_acquire_buffer(data);
}
else {
// this marks the array as not owning its buffer
a->reshaped = 1;
*((jl_array_t**)(&a->_space[0])) = a;
}
a->nrows = a->length;
a->maxsize = a->length;
a->offset = 0;
return a;
}
// own_buffer != 0 iff GC should call free() on this pointer eventually
jl_array_t *jl_ptr_to_array_1d(jl_type_t *atype, void *data, size_t nel,
int own_buffer)
{
size_t elsz;
jl_array_t *a;
jl_type_t *el_type = (jl_type_t*)jl_tparam0(atype);
int isunboxed = jl_is_bits_type(el_type);
if (isunboxed)
elsz = jl_bitstype_nbits(el_type)/8;
else
elsz = sizeof(void*);
a = allocobj((sizeof(jl_array_t)+jl_array_ndimwords(1)*sizeof(size_t)+15)&-16);
a->type = atype;
a->data = data;
a->length = nel;
a->elsize = elsz;
a->ptrarray = !isunboxed;
a->ndims = 1;
if (own_buffer) {
a->ismalloc = 1;
jl_array_data_owner(a) = (jl_value_t*)jl_gc_acquire_buffer(data,nel*elsz);
}
else {
a->ismalloc = 0;
jl_array_data_owner(a) = (jl_value_t*)a;
}
a->nrows = a->length;
a->maxsize = a->length;
a->offset = 0;
return a;
}