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dll: dirbuf:

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- FspFileSystemAcquireDirectoryBufferEx takes hint for initial capacity.
- Buffer allocation strategy has been improved to minimize reallocation.
- Quick sort of directory entries now implements median of three partitioning. This improves performance of sorting already sorted data.
This commit is contained in:
Bill Zissimopoulos
2022-03-22 16:47:40 +00:00
parent 868812d248
commit 7527155cb8
4 changed files with 102 additions and 20 deletions
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inc/winfsp/winfsp.h
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@ -1750,6 +1750,8 @@ FSP_API BOOLEAN FspFileSystemAddNotifyInfo(FSP_FSCTL_NOTIFY_INFO *NotifyInfo,
/*
* Directory buffering
*/
FSP_API BOOLEAN FspFileSystemAcquireDirectoryBufferEx(PVOID* PDirBuffer,
BOOLEAN Reset, ULONG CapacityHint, PNTSTATUS PResult);
FSP_API BOOLEAN FspFileSystemAcquireDirectoryBuffer(PVOID *PDirBuffer,
BOOLEAN Reset, PNTSTATUS PResult);
FSP_API BOOLEAN FspFileSystemFillDirectoryBuffer(PVOID *PDirBuffer,