// this is a run-time function
// warning: cannot allocate memory except using alloc_temp_arg_space
extern "C" DLLEXPORT void *jl_value_to_pointer(jl_value_t *jt, jl_value_t *v, int argn,
int addressof)
{
jl_value_t *jvt = (jl_value_t*)jl_typeof(v);
if (addressof) {
if (jvt == jt) {
if (jl_is_bitstype(jvt)) {
size_t osz = jl_datatype_size(jt);
return alloc_temp_arg_copy(jl_data_ptr(v), osz);
}
else if (!jl_is_tuple(jvt) && jl_is_leaf_type(jvt) && !jl_is_array_type(jvt)) {
return v + 1;
}
}
goto value_to_pointer_error;
}
else {
if (jl_is_cpointer_type(jvt) && jl_tparam0(jvt) == jt) {
return (void*)jl_unbox_voidpointer(v);
}
}
if (((jl_value_t*)jl_uint8_type == jt ||
(jl_value_t*)jl_int8_type == jt) && jl_is_byte_string(v)) {
return jl_string_data(v);
}
if (jl_is_array_type(jvt)) {
if (jl_tparam0(jl_typeof(v)) == jt || jt==(jl_value_t*)jl_bottom_type)
return ((jl_array_t*)v)->data;
if (jl_is_cpointer_type(jt)) {
jl_array_t *ar = (jl_array_t*)v;
void **temp=(void**)alloc_temp_arg_space((1+jl_array_len(ar))*sizeof(void*));
size_t i;
for(i=0; i < jl_array_len(ar); i++) {
temp[i] = jl_value_to_pointer(jl_tparam0(jt),
jl_arrayref(ar, i), argn, 0);
}
temp[i] = 0;
return temp;
}
}
value_to_pointer_error:
std::map<int, std::string>::iterator it = argNumberStrings.find(argn);
if (it == argNumberStrings.end()) {
std::stringstream msg;
msg << "argument ";
msg << argn;
argNumberStrings[argn] = msg.str();
it = argNumberStrings.find(argn);
}
jl_value_t *targ=NULL, *pty=NULL;
JL_GC_PUSH2(&targ, &pty);
targ = (jl_value_t*)jl_tuple1(jt);
pty = (jl_value_t*)jl_apply_type((jl_value_t*)jl_pointer_type,
(jl_tuple_t*)targ);
jl_type_error_rt("ccall", (*it).second.c_str(), pty, v);
// doesn't return
return (jl_value_t*)jl_null;
}
// this is a run-time function
// warning: cannot allocate memory except using alloc_temp_arg_space
extern "C" void *jl_value_to_pointer(jl_value_t *jt, jl_value_t *v, int argn)
{
if ((jl_value_t*)jl_typeof(v) == jt) {
assert(jl_is_bits_type(jt));
size_t osz = jl_bitstype_nbits(jt)/8;
return alloc_temp_arg_copy(jl_bits_data(v), osz);
}
if (((jl_value_t*)jl_uint8_type == jt ||
(jl_value_t*)jl_int8_type == jt) && jl_is_byte_string(v)) {
return jl_string_data(v);
}
if (jl_is_array(v)) {
if (jl_tparam0(jl_typeof(v)) == jt || jt==(jl_value_t*)jl_bottom_type)
return ((jl_array_t*)v)->data;
if (jl_is_cpointer_type(jt)) {
jl_array_t *ar = (jl_array_t*)v;
void **temp=(void**)alloc_temp_arg_space(ar->length*sizeof(void*));
size_t i;
for(i=0; i < ar->length; i++) {
temp[i] = jl_value_to_pointer(jl_tparam0(jt),
jl_arrayref(ar, i), argn);
}
return temp;
}
}
std::map<int, std::string>::iterator it = argNumberStrings.find(argn);
if (it == argNumberStrings.end()) {
std::stringstream msg;
msg << "argument ";
msg << argn;
argNumberStrings[argn] = msg.str();
it = argNumberStrings.find(argn);
}
jl_value_t *targ=NULL, *pty=NULL;
JL_GC_PUSH(&targ, &pty);
targ = (jl_value_t*)jl_tuple1(jt);
pty = (jl_value_t*)jl_apply_type((jl_value_t*)jl_pointer_type,
(jl_tuple_t*)targ);
jl_type_error_rt("ccall", (*it).second.c_str(), pty, v);
// doesn't return
return (jl_value_t*)jl_null;
}
static void *alloc_temp_arg_copy(void *obj, uint32_t sz)
{
void *p = alloc_temp_arg_space(sz);
memcpy(p, obj, sz);
return p;
}