Function aptExit

libctru/source/services/apt.c:371–467

}

void aptExit(void)
{
	if (AtomicDecrement(&aptRefCount)) return;

	bool closeAptLock = true;
	bool doDirtyChainload = false;

	if (!aptIsCrippled())
	{
		bool doClose;
		if (aptShouldClose())
		{
			// The system instructed us to close, so do just that
			aptCallHook(APTHOOK_ONEXIT);
			doClose = true;
		}
		else if (aptIsReinit())
		{
			// The homebrew environment expects APT to be reinitializable, so unregister ourselves without closing
			APT_Finalize(envGetAptAppId());
			doClose = false;
		}
		else if (aptFlags & FLAG_CHAINLOAD)
		{
			// A chainload target is configured, so perform a jump to it
			// Doing this requires help from HOME menu, so ensure that it is running
			bool hmRegistered;
			if (R_SUCCEEDED(APT_IsRegistered(aptGetMenuAppID(), &hmRegistered)) && hmRegistered)
			{
				// Normal, sane chainload
				APT_PrepareToDoApplicationJump(aptChainloadFlags, aptChainloadTid, aptChainloadMediatype);
				APT_DoApplicationJump(aptChainloadDeliverArg, aptChainloadDeliverArgSize, aptChainloadHmac);
			}
			else
			{
				// XX: HOME menu doesn't exist, so we need to use a workaround provided by Luma3DS
				APT_Finalize(envGetAptAppId());
				doDirtyChainload = true;
			}

			// After a chainload has been applied, we don't need to manually close
			doClose = false;
			__system_retAddr = NULL;
		}
		else
		{
			// None of the other situations apply, so close anyway by default
			doClose = true;
		}

		// If needed, perform the APT application closing sequence
		if (doClose)
		{
			APT_PrepareToCloseApplication(true);

			// APT_CloseApplication kills us if we aren't signed up for srv closing notifications, so
			// defer APT_CloseApplication for as long as possible (TODO: actually use srv notif instead)
			__system_retAddr = aptExitProcess;