* Migration should be automatic on sqlite and mysql
* Migration is not automatic on mssql, you will need to drop the invType column manually
* Migration should be fine, but as for any db change, I would recommend making sure you have backups before moving past this revision
* This currently has various bugs which are more to do with the way its been hacked together than the feature itself (e.g. on save-oar, ghost prims will appear of the saved
contained items). These will be found and eliminated in subsequent patches.
* Not yet ready for use
If a request is made for an asset which is not in the cache yet,
but has already been requested by something else, queue up the
callbacks on that requester instead of swamping the asset server
with multiple requests for the same asset.
So anyway, it moves the Asset downloading (packet sending) to a module (AssetDownloadModule).
So now at last, AssetCache should be just dealing with fetching assets from the asset server and caching them.
* This might stop some client's constant requests for unfound textures, which is a candidate for the memory leak
* If a texture is not found then the "Image not found" texture will now be displayed clientside
* If it works, this should resolve mantis 676
* Non texture image requests do not receive this packet yet
* This will require a prebuild
* As such, only a request for a non cached asset, the response and failures show up now.
* I know lbsa71 only put these in not long ago, so if they are really still required, I think we should think whether we can move the default log4net level off 'Debug'
* Resolve a bad logic bug in AssetCache.GetAsset()
* This may make some asset related things work better (possibly getting main map images will now be improved).
* This should stop the constant increase in the download requests statistics
* If you see stat numbers for download requests which are far from what you'd expect, please report
* This fixes some of the 'runaway downloads' problem but not all of it
* Also fix up logging messages so texture requests are reported as such rather than as assets
'show assets' shows the current state of the asset cache (number of cached assets, requests, et c)
'clear-assets' forcibly re-initializes the asset cache thereby freeing all cached items.
'clear-assets' is not to be used lightly, as it probably introduces mem inconsistencies and doubling up of textures.
* You can type 'stats' at the REGION# prompt to get this information in grid or standalone mode
* Don't take these numbers as gospel yet, since for some reason textures displayed from inventory which require downloading from the server are being recorded as assets
rather than textures
* But I don't have any reason to believe they aren't broadly accurate.
* I've put these in so I can tell whether the high memory usage on regions is down to the asset/texture cache
* This will require a prebuild
* DEV: Only adds needed to be implemented since, as far as I can tell, assets cached are currently never released. For my part, seeing large cache memory numbers will
provoke me to think about doing something about this.
* DEV: Now switched to using a singleton to get the stats reporters rather than threading the object through various layers
* DEV: Will refactor the other server stats reporters to do this in one of the next commits
* Cleaned up copyright notices in AssemblyInfo.cs's
* Added Copyright headers to a bunch of files missing them
* Replaced several common string instances with a static constant to prevent reallocation of the same strings thousands of times. "" -> String.Empty is the first such candidate.
