CachedWrite (Windows Embedded CE 6.0)
1/6/2010
For a write-through cache, this function writes data to disk and to the cache.
For a write-back cache, this function writes data only to the cache and allows the lazy-writer thread to commit the data to the disk.
Syntax
DWORD CachedWrite(
DWORD dwCacheId,
DWORD dwBlockNum,
DWORD dwNumBlocks,
PVOID pBuffer,
DWORD dwWriteFlags
);
Parameters
- dwCacheId
[in] Cache ID value returned by the CreateCache function.
- dwBlockNum
[in] Starting block to write to.
- dwNumBlocks
[in] Number of blocks to write.
- pBuffer
[in] Pointer to the buffer containing data to write.
- dwWriteFlags
[in] This value can be set to CACHE_FORCE_WRITETHROUGH to force the written blocks to be committed to the disk. This only applies for a write-back cache.
Remarks
If the cache location that the data is to be written to overwrites a dirty block that is different from the block to be written, that dirty block is committed to the disk.
Return Value
ERROR_SUCCESS indicates success. A Microsoft Win32 error code indicates failure.
Requirements
| Header | fsdmgr.h |
| Library | Fsdmgr.lib |
| Windows Embedded CE | Windows CE 5.0 and later |