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#ifndef RUST_PROXY_H
#define RUST_PROXY_H
/**
* A proxy object is a wrapper around other Rust objects. One use of the proxy
* object is to mitigate access between tasks in different thread domains.
*/
template <typename T> struct rust_proxy;
/**
* The base class of all objects that may delegate.
*/
template <typename T> struct
maybe_proxy : public rc_base<T>, public rust_cond {
protected:
T *_delegate;
public:
maybe_proxy(T * delegate) : _delegate(delegate) {
}
T *delegate() {
return _delegate;
}
bool is_proxy() {
return _delegate != this;
}
rust_proxy<T> *as_proxy() {
return (rust_proxy<T> *) this;
}
T *as_delegate() {
I(_delegate->get_dom(), !is_proxy());
return (T *) this;
}
};
/**
* A proxy object that delegates to another.
*/
template <typename T> struct
rust_proxy : public maybe_proxy<T>,
public dom_owned<rust_proxy<T> > {
private:
bool _strong;
public:
rust_dom *dom;
rust_proxy(rust_dom *dom, T *delegate, bool strong) :
maybe_proxy<T> (delegate), _strong(strong), dom(dom) {
this->dom->log(rust_log::COMM,
"new proxy: 0x%" PRIxPTR " => 0x%" PRIxPTR, this, delegate);
if (strong) {
delegate->ref();
}
}
};
//
// 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:
//
#endif /* RUST_PROXY_H */
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