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#pragma once
#include "platform/platform.hpp"
#include <future>
#include <functional>
#include <utility>
namespace platform
{
template <typename T>
class SafeCallback;
// Calls callback on main thread, all params are copied.
// If not initialized nothing will be done.
// *NOTE* The class is not thread-safe.
template <typename R, typename ...Args>
class SafeCallback<R(Args...)>
{
public:
SafeCallback() = default;
template <typename Fn>
SafeCallback(Fn const & fn)
: m_fn(fn)
{
}
operator bool() const noexcept
{
return static_cast<bool>(m_fn);
}
void operator()(Args... args) const
{
if (m_fn)
GetPlatform().RunTask(Platform::Thread::Gui, std::bind(m_fn, std::move(args)...));
}
private:
std::function<R(Args...)> m_fn;
};
} // namespace platform
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