Disk Cache Manager Functions (Compact 2013)

3/26/2014

Cache manager functions control the creation and management of cache information.

The following table shows the Cache Manager functions.

Function	Description
CachedRead	If the specified block is cached, copies data from the cache into a buffer. If the specified block is not cached, reads the data from the disk and copies it into a buffer along with the cache.
CachedWrite	In the case of a write-through cache, writes data to the disk and the cache. In the case of a write-back cache, writes data only to the cache and allows the lazy-writer thread to commit the data to the disk.
CacheIoControl	Sends a custom I/O control to the cache.
CreateCache	Creates a cache.
DeleteCache	Deletes a cache. This frees all memory allocated to the cache.
FlushCache	Commits dirty blocks in the cache to the disk. This is only necessary for a write-back cache.
InvalidateCache	Invalidates the cached sectors in a sector list. Invalidated sectors are not committed to disk first, even if they are dirty.
ResizeCache	Resizes a cache by reducing or expanding its size.
SyncCache	Updates the cache by reading from the disk for each cache block while maintaining the mapping between a cache block and a disk block.

See Also

Reference

Disk Cache Manager Reference
Registry Settings for File Caching