Namely, implement CcCanIWrite() (very basic, and likely wrong).
And implement CcDeferWrite() which will queue the write operation.
In CciLazyWriter() (which may be renamed CcWorkerThread() ;-)),
handle the queued write operations one by one. This is likely
not to be accurate, but, given we have only on FS supporting
this for now (NFS / RDBSS / Shares), this is OK.
CORE-14235
Experiment and MSDN tend to show that a dirty BCB is queued for lazy write.
This will do the job here!
Also, renamed CcRosMarkDirtyFile() which is more accurate, and added a new
function CcRosMarkDirtyVacb() which just takes a VACB as arg (expected locked)
and marks it dirty (using previous implementation). Make CcRosMarkDirtyFile()
use it.
CORE-14235
CcDirtyPageThreshold is not here to compute when you have to write,
but to know where you have to deny writes.
More commits to come in that direction!
CORE-14235
Apparently the indices provided in NMTBGETINFOTIP (TBN_GETINFOTIP data struct), are not reliable,
but since the lParam values are, and it saves us a lookup, we will be using those instead. Win-Win!
- uVersion will only be truly useful when Vista+'s V4 style notification icons are implemented.
- Balloon notifications do not yet support queuing and auto-closing.
- Force the notification icon tooltips to always show even if the taskbar isn't foreground.
[ROSCTRLS.H] Implement CTooltips class which manages a comctl32 tooltips window.
This removes the "modified page writer" thread in Mm that was regularly blindly
attempting to flush dirty pages to the disk.
Instead, this commit introduces a lazy writer that will monitor dirty pages count
and will flush them to disk when this count is above a threshold. The threshold is
computed on Cc init.
Compared to what was done previously, this lazy writer will only write down files
that are not marked as temporary.
The mechanisms involved in this lazy writer worker are well described in Windows
Internals 4th editions (constants are coming from it ;-)).
Also fixed a bad (and old!) bug in CcRosFlushDirtyPages() where target count could
be overflow and the function would spin forever while holding the VACBs lock. This is
mandatory as now lazy writer will call it with "random" values.
This also allows implementing CcWaitForCurrentLazyWriterActivity() :-).
Also renamed DirtyPageCount to its MS equivalent.
CORE-14235
This Wine sync (that was not done against WineStaging) erased code
that had been submitted to WineStaging by the ReactOS team (clist.c
fixes, see r73565 a05881c and r73976 7b6b597) or added in r68042 9a78054.
To that aim I add explicit #if(n)def __REACTOS__ guards around the code.
