This Project clears the Model Cache when disconnecting from a server.
It also activates Async Load for some DataTypes. (MDLCACHE_STUDIOHWDATA, MDLCACHE_VCOLLIDE and MDLCACHE_VERTEXES)

Note: This Project uses Garry's Mod Common

Current Status

Bugs:

• Content from Addons also get unloaded.
• Playermodel sometimes break

What I'm currently working on:

• Better Cache handling
  • Try to only unload Map content first
  • Try to only unload Content downloaded by the Server.
  • Try not to unload Content from Addons
  • Add some type of tag that allows a server to stop the cache / tell the cache to not unload Content.

How to Install

1. You need to download the gmsv_cache_win32.dll from the latest release
2. Move the gmsv_cache_win32.dll into your garrysmod/lua/bin folder.
3. You need insert

Windows:

if file.Exists("lua/bin/gmsv_cache_win32.dll", "GAME") then
  require("cache")
end

Linux:

if file.Exists("lua/bin/gmsv_cache_linux.dll", "GAME") then
  require("cache")
end

Into the garrysmod/lua/menu/menu.lua file at the bottom.

Note: If you change your Gmod branch or an update is made, your changes could get removed.

How it currently works.

You can use the cache_flush command to manually flush the cache if it somehow didn't flush it itself, or if you just want to clear the cache completely.
This command only works when you're not connected to a Server!
NOTE: This command will flush some data that is not cleared automatically like MDLCACHE_FLUSH_STUDIOHDR or MDLCACHE_FLUSH_VCOLLIDE data because flushing them while joining a Server can cause some unexpected crashes or bugs like some Models having no collisions.
(If you want to know what exactly crashes, vphysics.dll and datacache.dll are the ones crashing)

graph TD;
    %%{init: {"theme": "dark", "fontFamily": "monospace", "flowchart": {"htmlLabels": true, "curve": "linear"}, "sequence": {"mirrorActors": true}}}%%
    startup[Gmod Starts]-->cache[Cache Initializes]
    cache-->cache_async[Enable AsyncLoad for some DataTypes]
    cache-->cache_cmd[Add the cache_flush command]
    
    cache_cmd-->first_server
    cache_async-->first_server
    
    first_server[First time Connecting to a Server]-->cache_savemap[Cache saves the Mapname]
    cache_savemap-->connect((You connect to a different Server))
    connect-->cache_check[The cache checks if it's the same map by\ncomparing the saved Mapname with the Mapname of the Server]
    cache_check-- If it's not the same Map, clear the Cache\nIf it's the same Map, do nothing -->connect

Loading

Next Update

[+] Added LUA API
[#] Cleaned up the Code
[#] Small problems fixed

--- MDLCACHE_ Types ---
MDLCACHE_STUDIOHDR = 1
MDLCACHE_STUDIOHWDATA = 2
MDLCACHE_VCOLLIDE = 3
MDLCACHE_ANIMBLOCK = 4
MDLCACHE_VIRTUALMODEL = 5
MDLCACHE_VERTEXES = 6
MDLCACHE_DECODEDANIMBLOCK = 7

--- Menu State ---
void cache.Flush() Call this if you want to flush the cache.
bool cache.GetAsync() retuns a bool if the given MDLCACHE type is Async.
bool cache.SetAsync(int MDLCACHE_[any], bool enabled) Enables Async for the given type. retuns a bool if the given MDLCACHE type has Async enabled. Some types can fail or cause problems!
void cache.ShouldClear(string IP, bool clear) When the clients joins the given IP, the cache will be cleared if you want it to. (You can only controll the Cache for 1 IP!)

--- Client State ---
bool cache.GetAsync() retuns a bool if the given MDLCACHE type is Async.
bool cache.SetAsync(int MDLCACHE_[any], bool enabled) Enables Async for the given type. retuns a bool if the given MDLCACHE type has Async enabled. Some types can fail or cause problems!
void cache.ShouldClear(string IP, bool clear) When the clients joins the given IP, the cache will be cleared if you want it to. (You can only controll the Cache for 1 IP!)