Once a directory is crossed (opened or a child is opened), associated
FCB structure is created in FastFAT, but also a stream FO for caching.
Up to now, due to an extra reference taken by the stream file object,
even when the directory was no longer used, the directory was kept in
memory: the FCB was never deleted, the file object was never dereferenced,
and the cache never released.
The immediate effect of this bug is that our FAT driver was leaking every
directory that was used affecting the whole OS situation. In case of
directories intensive operation (like extraction the ReactOS source code
in ReactOS ;-)), we were just killin the whole OS RAM without any way to
release it and recover.
The other side effects: IOs were faster as half of the FS was always
permanant in RAM.
This commit fixes the issue by forcing the FSD to release the FO,
and the cache when a directory is no longer used, leading to its
destruction in RAM.
Downside: on IO intensive operation, expect slowdowns, obviously,
there's less caching now. But more efficient!
CORE-14557
When no name is set in the file object, try to read the name
from the FCB. We only support FastFAT (ours) FCB for now.
This is clearly a hack, but for a kdbg command, so ;-)
It seems that on process killing, some VACB may be deleted while
still mapped. With current reference counting, they will actually
not be deleted, but leaked, and an ASSERT will be triggered.
CORE-14578
- Check the denominator for zero for both zoomed width and height.
- Do not allow to move zoom slider above possible position.
- Move commonly used `zoomTo` function into new header file.
CORE-14539
CORE-13447 CORE-14422
This fixes closing nLite 1.4.9.3 (.NET2) application, as well as any
other program that expects that the interactive window station is
reported as being visible. I thank Mark Jansen and Joachim Henze for
help and testing.
- Allow the driver to be unloaded, as on Windows.
- Use a static fast IO dispatch table, instead of allocating one and
risking any potential memory allocation failure.
- Update the file header.
- For non-PnP devices reported to the PnP manager through the
IoReportDetectedDevice() function, store the corresponding
service/driver name and (non-)legacy information inside their
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\ entries.
- Drivers flagged as "DRVO_BUILTIN_DRIVER" (basically, only those
created via a IoCreateDriver() call) have their "Service" name that
contain "\Driver\", which should be stripped before being used in
building e.g. the corresponding "DETECTEDxxx" PnP compatible IDs.
CORE-14247
- Use explicit REG_OPTION_NON_VOLATILE flag where needed in the
IopCreateDeviceKeyPath() calls.
- Save NULL-terminated REG-SZ string properties in the enumeration tree
for each device enumerated inside \Enum\Root\.
- Always use upcased key name for the "LEGACY_***" elements in \Enum\Root\.
- Add a default "ConfigFlags" value for the legacy elements.
- Simplify few parts of code.
The size is in bytes, not in pages! On x86 we got away with it, since PEB and TEB require only a single page and the 1 passed to MiInsertVadEx() was aligned up to PAGE_SIZE. On x64 this doesn't work, since the size is 2 pages.
Using static numbers was a bad idea in the first place, since we already deal with x64, which has different ordinals. Also @ will automatically do the same thing! It does not mean "no ordinal", it only means automatically apply incrementing numbers.
- "warning: comparison of unsigned expression < 0 is always false [-Wtautological-unsigned-zero-compare]"
- "warning: logical not is only applied to the left hand side of this comparison [-Wlogical-not-parentheses]"
CORE-14306
