Commit Graph

88 Commits

Author SHA1 Message Date
Nick Craig-Wood
b8b620f5c2 Move all backends into backend directory 2018-01-12 17:07:38 +00:00
Nick Craig-Wood
29d34426bc vfs: fix deletion of in use directories #1860
This was causing errors if the cache cleaner was called between the
Open and the pendingOpen of a RW file.

The fix was to move the cache open to the Open from the openPending.
2017-12-15 15:42:49 +00:00
Nick Craig-Wood
38b85e94ea vfs: rename --cache-* options to --vfs-cache-* to save confusion
..as the backend cache options are all called --cache-* too. Adjust
docs to point out what the vfs cache does vs the backend cache.
2017-12-03 12:14:15 +00:00
Nick Craig-Wood
c16ac697a9 vfs: keep track of directories in the cache also #1860
This makes managing empty directories more reliable.
2017-11-28 20:39:23 +00:00
Nick Craig-Wood
0978957a2e vfs: make sure all 96 combinations of flags for Open work 2017-11-28 20:39:23 +00:00
Nick Craig-Wood
d1b19f975d vfs: remove items from cache when deleted #1860
Also fixes Error message when items have been deleted from the cache
(eg when Moved) when the cache reaper comes to delete them.
2017-11-28 16:13:58 +00:00
Nick Craig-Wood
3fb4fe31d2 vfs: make sure write only handles never truncate files they shouldn't 2017-11-20 19:42:25 +00:00
Nick Craig-Wood
76b151984c vfs: cache the size of the object in the read handle 2017-11-20 17:57:13 +00:00
Nick Craig-Wood
60945d0a37 vfs: remove misleading comment 2017-11-20 12:46:23 +00:00
Nick Craig-Wood
b4083b4371 vfs: rename Fsync to Sync and implement Sync on Node and Handle 2017-11-20 12:46:23 +00:00
Nick Craig-Wood
9738f8532b vfs: Add FlushDirCache method 2017-11-20 12:46:23 +00:00
Nick Craig-Wood
a5b034a992 vfs: add WaitForWriters to wait until all writers have finished 2017-11-20 12:46:23 +00:00
Nick Craig-Wood
321b6da7af vfs: don't remove file from writers until it is transferred
This means that the list of active writers is up to date
2017-11-20 12:46:23 +00:00
Nick Craig-Wood
1b22ee5b93 vfs: fix error handling in openPending so it returns the correct error 2017-11-20 12:46:23 +00:00
Nick Craig-Wood
eab55ce882 vfs: add open files to directories 2017-11-20 12:46:23 +00:00
Nick Craig-Wood
c560017934 vfs: add Path method to Node and use it to stop reading nil DirEntry
All DirEntry calls now have been checked for nil or converted to use Path.
2017-11-20 12:46:22 +00:00
Nick Craig-Wood
992647b157 vfs: Don't error a r/w file open without cache; delay error until Read called
If we open a file for r/w without the cache we now always return a
handle and return an error if the file is ever read from.  This fixes
incompatibility with cmount under windows.
2017-11-20 12:46:22 +00:00
Nick Craig-Wood
dec21ccf63 vfs, cmount: make truncate work properly in the presence or otherwise of open files 2017-11-20 12:46:22 +00:00
Nick Craig-Wood
e7f2935333 vfs: decode flags in Open/OpenFile for debug 2017-11-20 12:46:22 +00:00
Nick Craig-Wood
8951875c21 vfs,mount,cmount,mountlib: allow flags to be overriden by environment variables 2017-11-20 12:46:21 +00:00
Nick Craig-Wood
05a1e1532b vfs,mount,cmount,serve: Add documentation for vfs caching modes 2017-11-20 12:46:21 +00:00
Nick Craig-Wood
7f20e1d7f3 vfs: add read write files and caching #711
This adds new flags to mount, cmount, serve *

    --cache-max-age duration         Max age of objects in the cache. (default 1h0m0s)
    --cache-mode string              Cache mode off|minimal|writes|full (default "off")
    --cache-poll-interval duration   Interval to poll the cache for stale objects. (default 1m0s)
2017-11-20 12:36:50 +00:00
Nick Craig-Wood
a0cfa0929b vfs: remove un-needed (after introduction of rcat) createInfo struct 2017-11-20 12:00:32 +00:00
Nick Craig-Wood
3fb1e96988 vfs: factor Open logic from Dir.Create into vfs.OpenFile 2017-11-20 12:00:32 +00:00
Fabian Möller
5acb6f47e7 mountlib: log when poll-interval is ineffective
Notify the user in case poll-interval is used on a unsupported remote
2017-11-19 20:08:14 +00:00
Nick Craig-Wood
c31556c6d1 vfs: Make sure all public methods are locked in Read and Write Handle 2017-11-04 10:24:10 +00:00
Nick Craig-Wood
2083ac6e2a vfs: add ECLOSED and tidy errors 2017-11-04 10:24:10 +00:00
Nick Craig-Wood
22ee839d05 cmount,vfs: unify Read and Write handles and File and Dir where possible 2017-11-04 10:24:10 +00:00
Nick Craig-Wood
5634659ea3 mount,vfs: unify Read and Write handles in preparation for ReadWrite handles 2017-11-04 10:24:10 +00:00
Nick Craig-Wood
e18122e88b vfs: add tests and subsequent fixes
* Tests for VFS layer
  * Small fixes found during testing
  * Fix Close, Flush and Release behaviour for ReadFileHandle and WriteFileHandle
  * Fix nil object bugs on File
2017-11-04 10:24:10 +00:00
Nick Craig-Wood
8184ec4b70 vfs: add EPERM to errors 2017-11-03 13:00:00 +00:00
Nick Craig-Wood
190367d917 vfs: factor duplicated Open code into vfs from mount/cmount 2017-11-03 13:00:00 +00:00
Nick Craig-Wood
a5dc62f6c1 vfs: Make file handles compatible with OS
* Implement directory handles
  * Unify OpenFile
  * Add all the methods to match *os.File
  * Add StatParent and Rename methods to VFS
2017-11-03 13:00:00 +00:00
Nick Craig-Wood
3e0c91ba4b vfs: Move DefaultOpt to vfs and make some methods private 2017-11-03 13:00:00 +00:00
Nick Craig-Wood
7e065440fb vfs: rename Lookup to Stat to be more in keeping with os 2017-11-03 12:59:59 +00:00
Nick Craig-Wood
e8883e9fdb vfs: factor flags into vfsflags and remove global variables 2017-11-03 12:59:59 +00:00
Nick Craig-Wood
1a8f824bad vfs: use os package errors where possible 2017-11-03 12:59:59 +00:00
Nick Craig-Wood
c1aaff220d Factor new vfs module out of cmd/mountlib
This is an OS style file system abstraction with directory caching
used in mount, cmount, serve webdav and serve http.
2017-11-03 12:59:59 +00:00