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#include "rust_internal.h"
static inline void
adjust_disp(uintptr_t &disp, const void *oldp, const void *newp)
{
if (disp) {
disp += (uintptr_t)oldp;
disp -= (uintptr_t)newp;
}
}
type_desc *
rust_crate_cache::get_type_desc(size_t size,
size_t align,
size_t n_descs,
type_desc const **descs)
{
I(dom, n_descs > 1);
type_desc *td = NULL;
size_t keysz = n_descs * sizeof(type_desc*);
HASH_FIND(hh, this->type_descs, descs, keysz, td);
if (td) {
DLOG(dom, cache, "rust_crate_cache::get_type_desc hit");
return td;
}
DLOG(dom, cache, "rust_crate_cache::get_type_desc miss");
td = (type_desc*) dom->malloc(sizeof(type_desc) + keysz);
if (!td)
return NULL;
// By convention, desc 0 is the root descriptor.
// but we ignore the size and alignment of it and use the
// passed-in, computed values.
memcpy(td, descs[0], sizeof(type_desc));
td->first_param = &td->descs[1];
td->size = size;
td->align = align;
for (size_t i = 0; i < n_descs; ++i) {
DLOG(dom, cache,
"rust_crate_cache::descs[%" PRIdPTR "] = 0x%" PRIxPTR,
i, descs[i]);
td->descs[i] = descs[i];
// FIXME (issue #136): Below is a miscalculation.
td->is_stateful |= descs[i]->is_stateful;
}
HASH_ADD(hh, this->type_descs, descs, keysz, td);
return td;
}
rust_crate_cache::rust_crate_cache(rust_dom *dom,
rust_crate const *crate)
: type_descs(NULL),
crate(crate),
dom(dom),
idx(0)
{
}
void
rust_crate_cache::flush() {
DLOG(dom, cache, "rust_crate_cache::flush()");
while (type_descs) {
type_desc *d = type_descs;
HASH_DEL(type_descs, d);
DLOG(dom, mem, "rust_crate_cache::flush() tydesc %" PRIxPTR, d);
dom->free(d);
}
}
rust_crate_cache::~rust_crate_cache()
{
flush();
}
//
// Local Variables:
// mode: C++
// fill-column: 78;
// indent-tabs-mode: nil
// c-basic-offset: 4
// buffer-file-coding-system: utf-8-unix
// compile-command: "make -k -C .. 2>&1 | sed -e 's/\\/x\\//x:\\//g'";
// End:
//
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