Commit Graph

126 Commits

Author SHA1 Message Date
Nikolay Sivov 73419dc484 ole32: Return END_OF_CHAIN for chains starting with special sector values. 2014-12-29 22:20:29 +01:00
Frédéric Delanoy 2ab8729020 Assorted spelling/grammar fixes. 2014-06-20 12:19:31 +02:00
Vincent Povirk 8107955273 ole32: Support storage files larger than 4 GB. 2014-06-12 13:19:04 +02:00
Vincent Povirk 77e3de5828 ole32: Use a snapshot file when sharing storages for writing. 2014-05-21 10:19:51 +02:00
Vincent Povirk b3e26be0cb ole32: STGM_NOSNAPSHOT implies deny write. 2014-05-12 10:48:14 +02:00
Vincent Povirk cf75c5368b ole32: Use real blocking operations for storage locking when possible. 2014-05-09 14:16:12 +02:00
Vincent Povirk 4f0d36d9a0 ole32: Initial implementation of transaction locking. 2014-05-05 10:53:41 +02:00
Vincent Povirk a60d41d70a ole32: Use symbolic names for range lock offsets. 2014-05-05 10:53:27 +02:00
Vincent Povirk 65887802c5 ole32: Initial storage file locking implementation. 2014-04-29 11:26:51 +02:00
Frédéric Delanoy 37abf45e6c ole32: Use BOOL type where appropriate. 2013-11-20 11:25:55 +01:00
Frédéric Delanoy 4bb61ec0df ole32: Use BOOL type where appropriate. 2013-10-15 14:28:20 +02:00
Nikolay Sivov 5132f60298 ole32: Store SMWR storage instance role separately. 2013-04-19 16:16:17 +02:00
Nikolay Sivov a06db6cce5 ole32: Stub for IDirectWriterLock. 2013-04-18 17:00:17 +02:00
Nikolay Sivov 52ce30d242 ole32: Make ole stream creation helper capable of handling flags data. 2012-07-17 12:50:19 +02:00
Nikolay Sivov ac032593c0 ole32: COM cleanup of IPropertySetStorage interface. 2012-07-16 15:21:44 +02:00
Nikolay Sivov 0c658860b1 ole32: COM cleanup for IStorage interface of base storage implementation. 2012-07-13 10:29:13 -05:00
Nikolay Sivov ea196ef0eb ole32: COM cleanup of storage IStream implementation. 2012-07-13 10:28:15 -05:00
Marcus Meissner 14c4ef3fdd ole32: Mark internal symbols has hidden visibility. 2011-04-25 13:02:01 +02:00
David Hedberg 41193de135 ole32: Avoid unneccessary stream conversion.
Truncating a large stream to less than 0x1000 bytes would cause an
unnecessarily expensive conversion.
2010-11-23 13:17:06 +01:00
Vincent Povirk e883aeb394 ole32: Cache the contents of one extended big block depot block. 2010-11-16 21:54:18 +01:00
Vincent Povirk 8d101b269d ole32: Cache all extended big block depot locations. 2010-11-04 11:55:48 +01:00
Vincent Povirk 89646084ba ole32: Cache data and block locations in BigBlockStream objects. 2010-08-26 13:59:31 +02:00
Vincent Povirk 5116b979b2 ole32: Flush the ILockBytes object of a storage on commit and final release.
Some ILockBytes objects will not really write changes until their Flush
method is called. Also, further optimizations to the storage implementation
will involve caching writes, which will have to be flushed at times.
2010-07-19 14:38:16 +02:00
Vincent Povirk b7dbfcbd48 ole32: Remove an unused variable. 2010-07-19 14:38:16 +02:00
Vincent Povirk d0e6e4aa82 ole32: Use ILockBytes_Stat to get the filename of a storage. 2010-07-19 14:38:16 +02:00
Vincent Povirk 14f8f9d5b5 ole32: Remove the BigBlockFile abstraction and always use an ILockBytes. 2010-07-19 14:38:16 +02:00
Vincent Povirk 7f3c92b2a0 ole32: Update storage header saving code based on the latest MS spec.
These fields are needed for the MS storage implementation to load
files that were created by Wine with a block size of 4096.
2010-07-19 14:38:16 +02:00
Vincent Povirk e40afcb2b6 ole32: Always move unmodified streams instead of copying on commit. 2010-05-06 17:55:43 +02:00
Vincent Povirk 42550953a6 ole32: Store the location of all blocks in a big block chain in memory.
A big block chain is a linked list, and we pretty much need random
access to them. This should theoretically make accessing a random
point in the chain O(log2 n) instead of O(n) (with disk access scaling
based on the size of the read/write, not its location). It
theoretically takes O(n) memory based on the size, but it can do
better if the chain isn't very fragmented (which I believe will
generally be the case for long chains). It also involves fetching all
the big block locations when we open the chain, but we already do that
anyway (and it should be faster to read it all in one go than
piecemeal).
2010-05-05 10:41:57 +02:00
Vincent Povirk 0b149df987 ole32: Create storage files with 4096-byte blocks when asked. 2010-04-13 11:30:48 +02:00
Vincent Povirk 49a817c064 ole32: Check the small block size limit of storage files.
This value is stored in the storage file header. We currently hard-code it to
0x1000. I don't expect to see files in the wild with other values, but
according to MS this is a valid configuration. For now, just fail if we see
another value.

I've also upgraded the message for unexpected values in storage file headers
to a fixme, since they are valid according to MS.
2010-03-22 10:47:58 +01:00
Vincent Povirk e05b8416b8 ole32: Track the lowest possibly-free small block in storage files.
This makes creating small block chains O(n) instead of O(n**2) because we
don't have to keep rechecking the first blocks in the file.
2010-03-22 10:47:42 +01:00
Vincent Povirk 5ceb003a24 ole32: Remove knowledge of block sizes from the BigBlockFile object.
We can't determine the correct block size until we read the header, and we
can't create the BigBlockFile until we know the correct block size. To
solve this dilemma, have StorageImpl calculate the file size it needs instead
of asking the BigBlockFile to "ensure a big block exists".
2010-03-15 13:46:48 +01:00
Vincent Povirk 926669741e ole32: Remove the NUM_BLOCKS_PER_DEPOT_BLOCK define.
This should always be calculated based on the big block size.
2010-03-15 13:46:31 +01:00
Vincent Povirk 7b43123762 ole32: Remove the BIG_BLOCK_SIZE define.
Big block sizes can be 512 or 4096, so we define arrays that are large
enough in either case.
2010-03-15 13:46:19 +01:00
Vincent Povirk 7f3211f383 ole32: Don't treat the header as a big block in StorageImpl_LoadFileHeader.
The header is always 512 bytes, regardless of the big block size.
2010-03-15 13:45:30 +01:00
Vincent Povirk 393c5af205 ole32: Add a cache for block chain streams in StorageImpl. 2009-12-16 12:24:27 +01:00
Vincent Povirk d799f7e189 ole32: Add a stub transacted storage type.
TransactedSnapshotImpl acts as a proxy between the user and the storage
interfaces that modify the file directly (or another transacted storage).
Currently, it does not change the operations.
2009-12-11 12:16:26 +01:00
Vincent Povirk 42142200d5 ole32: Add Invalidate to the storage vtable. 2009-12-11 12:16:26 +01:00
Vincent Povirk 8b3ff9d179 ole32: Remove the ancestorStorage attribute. 2009-12-10 11:51:39 +01:00
Vincent Povirk df0ef756b3 ole32: Add an attribute to StorageBaseImpl to track its reverted status. 2009-12-09 12:03:40 +01:00
Vincent Povirk 8518323e07 ole32: Don't track the stream size in storage stream objects.
We can't do this safely when there are multiple objects for a single stream.
2009-12-09 12:03:18 +01:00
Vincent Povirk 6d06c43e53 ole32: Use the storage vtable to resize streams. 2009-12-09 12:03:10 +01:00
Vincent Povirk 1d4c698ef3 ole32: Use the storage vtable to write to streams. 2009-12-09 12:02:59 +01:00
Vincent Povirk 62e54bacba ole32: Use the storage vtable to read streams. 2009-12-08 12:35:33 +01:00
Vincent Povirk ee39a21d2b ole32: Add DestroyDirEntry to the storage vtable. 2009-12-08 12:35:17 +01:00
Vincent Povirk 9300a92ccc ole32: Change the base IStorage filename to a pointer type.
The maximum size of the name returned by Stat() on a top-level storage has
nothing to do with DIRENTRY_NAME_BUFFER_LEN. Windows can return longer names
and probably has a limit of MAX_PATH. Also, Stat always returns an absolute
pathname, so we don't need a special case in StgOpenStorage.
2009-12-08 12:34:47 +01:00
Vincent Povirk f3d194b391 ole32: Add ReadDirEntry to the storage vtable. 2009-12-07 09:49:05 +01:00
Vincent Povirk 176cdfc75e ole32: Add WriteDirEntry to the storage vtable. 2009-12-07 09:49:05 +01:00
Vincent Povirk 8a332db2c5 ole32: Change ReadDirEntry return type to HRESULT. 2009-12-07 09:49:05 +01:00