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libpEpAdapter/src/call_with_lock.hh

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// This file is under GNU General Public License 3.0
// see LICENSE.txt
#ifndef LIBPEPADAPTER_CALL_WITH_LOCK_HH
#define LIBPEPADAPTER_CALL_WITH_LOCK_HH
#include <mutex>
namespace pEp {
extern std::mutex call_with_lock_mutex;
// TODO: use && and std::forward<> to avoid copying of the arguments.
// It is not relevant, yet, because at the moment we use this function
// template only for init() and release() which have cheap-to-copy pointer
// parameters only
template<class R, class... Args>
R call_with_lock(R (*fn)(Args...), Args... args)
{
std::lock_guard<std::mutex> L(call_with_lock_mutex);
return fn(args...);
}
} // namespace pEp
#endif // LIBPEPADAPTER_CALL_WITH_LOCK_HH