3 Commits

Author	SHA1	Message	Date
Wei Liu	af770c814b	block_util: provide and use AsyncAdaptor trait ... The observation is that the code in question was used to bridge synchronized and asynchronized code. We can group the functions for that purpose under an adaptor trait. To limit the scope of locking, the users of the trait are required to implement a method to return a MutexGuard for the underlying file. This then allows us to use concrete types (QcowFile and Vhdx) in code, which is easier to read than a bunch of traits. No functional change intended. Signed-off-by: Wei Liu <liuwe@microsoft.com>	2021-12-06 15:20:29 +01:00
Wei Liu	e1151482fc	block_util: handle synchronized read/write/fsync idiomatically ... Previously mutex (semaphore) and file were separated. The code needed to create artificial scopes to use mutex to protect file. Rewrite the code to be idiomatic. The file itself is turned into a trait object and placed inside the mutex. This requires providing a new ReadWriteSeekFile trait to unify all helper functions. The rewrite further simplified vhdx_sync code. The original code contained two mutex'es for no apparent reason. No functional change intended. Signed-off-by: Wei Liu <liuwe@microsoft.com>	2021-12-06 09:23:51 +00:00
Fazla Mehrab	5db4dede28	block_util, vhdx: vhdx crate integration with the cloud hypervisor ... vhdx_sync.rs in block_util implements traits to represent the vhdx crate as a supported block device in the cloud hypervisor. The vhdx is added to the block device list in device_manager.rs at the vmm crate so that it can automatically detect a vhdx disk and invoke the corresponding crate. Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com> Signed-off-by: Fazla Mehrab <akm.fazla.mehrab@intel.com>	2021-08-19 11:43:19 +02:00