Quit is slow

[lopezloo]

Describe the bug

It takes few seconds to quit MTA client, even when only main menu is shown and game world was never loaded.

What is interesting is that it doesn't happen on custom builds build as VERSION_TYPE_CUSTOM where quit is nearly instant even when client is connected to the server.

Steps to reproduce

Click quit in main menu or press ALT + F4.

Version

Happens on both mtasa-1.6-rc-23237-20250605 and mtasa-1.6-rc-22388-20240203 so probably it's not regression.

Additional context

Caused by something in netc. m_pNet->Shutdown(); call is causing that slowdown:

mtasa-blue/Client/core/CCore.cpp

Line 1138 in 527f873

m_pNet->Shutdown();

Relevant log output

Security Policy

• I have read and understood the Security Policy and this issue is not security related.

[Xenius97]

++ sometimes cursor is lagging while MTA tries to close, similar when you try to reconnect after a crash

[ColombuxMaximus]

was it always like that? because yeah the delay is caused by m_pNet->Shutdown() even when quitting from the main menu, we can’t inspect CNet::Shutdown() directly but it’s likely blocking (probably waiting to receive infos before closing)
if it was always like that idk if there's much to do since we don't have access to netc

[Fernando-A-Rocha]

@Dutchman101 please provide some insights because you are experienced with netc

[lopezloo]

@botder tweaked it in r23238
I propose to just hide game window during quit in PR #4253 to make it appear instant.