#include "STDInclude.hpp"

namespace Components
{
	/// This component is a workaround for issue https://github.com/XLabsProject/iw4x-client/issues/80
	/// In case the link goes down, this is a "game hangs randomly" issue:
	/// 
	/// Investigations on the issue pointed out it comes from a situation on Intel processors where
	///		WaitForSingleObjectA is ignored by a thread, for some (?) reason.
	/// 
	/// This locks up the game randomly, mostly at the end of rounds or when too many things happen at
	///		once, due to trying to stop sounds (AIL_Stop_sounds) and playing streams at the same time,
	///		rushing for the same resource via AIL_lock_mutex. 
	/// 
	/// This bug has been reproduced on	mp_terminal, mp_overgrown, mp_rust, with and without bots,
	///		and so far this has been the only way to circumvent it afaik. This component wraps
	///		miles' mutex into another mutex, created below, and for some reason (?) that mutex is 
	///		respected when miles' is not.
	/// 
	/// As soon as a real fix is found, please discard this fix. In the meantime, it should not
	///		have side effects too bad - worst case it might cause a slight performance drop during
	///		team switch and intermission.
	/// 

	std::mutex SoundMutexFix::snd_mutex;

	static void __stdcall LockSoundMutex(int unk)
	{
		std::lock_guard lock(SoundMutexFix::snd_mutex);

		DWORD funcPtr = *reinterpret_cast<DWORD*>(0x6D7554); // AIL_close_stream
		((void(__stdcall*)(int unk))(funcPtr))(unk);
	}

	SoundMutexFix::SoundMutexFix()
	{
		Utils::Hook(0x689EFE, &LockSoundMutex, HOOK_JUMP).install()->quick();
	}

	SoundMutexFix::~SoundMutexFix()
	{
	}
}