Commit Graph

33 Commits

Author SHA1 Message Date
Vincent Sanders
9511e9c4e9 Improve file naming inside cache 2015-03-31 20:57:00 +01:00
Vincent Sanders
f1d4094566 allocate small block using block use bitmaps to find free entries. 2015-03-31 20:56:55 +01:00
Vincent Sanders
706a77170d implement block read and write operations. 2015-03-31 20:56:55 +01:00
Vincent Sanders
c965fa8739 Block file usage bitmaps (de)serialising 2015-03-31 20:56:55 +01:00
Vincent Sanders
a8e501a663 define block store parameters 2015-03-31 20:56:55 +01:00
Vincent Sanders
980e28d916 Change backing store fetch operation to always perform the allocations
The fetch API previously allowed for the caller to supply the storage,
this was never used and was preventing the refactoring necessary for
small black storage to be available.
2015-03-31 20:56:55 +01:00
Vincent Sanders
1d03f34d62 Compute the element index once and use that as a parameter.
Change to computing the element index from the flags passed to store
and fetch methods instead of passing the flags around and calculating
everywhere.

Additionally split out writing element of entry to file into distinct
function to make code clearer.
2015-03-31 20:56:55 +01:00
Vincent Sanders
c2eda75710 Change element layout and cope with index collisions. 2015-03-31 20:56:55 +01:00
Michael Drake
ee75f5b3ad Fix to support non-POSIX behaviour when renaming cache entries on disc. 2015-02-03 10:22:28 +00:00
Vincent Sanders
1c735140b6 fix resource leak on error (Coverity 1256245) 2014-11-30 11:21:34 +00:00
Vincent Sanders
d08acbc5ae correctly calculate writeout bandwidth and properly impose limits 2014-11-29 23:57:15 +00:00
Vincent Sanders
6b2676d33f Improve llcache writeout stratagy 2014-11-28 19:17:42 +00:00
Vincent Sanders
8d51dd4879 update the backing store to allow for invalidating entries which have an allocation 2014-11-27 13:31:43 +00:00
Vincent Sanders
5a78cd810f correctly release source data from llcache 2014-11-23 18:21:56 +00:00
Vincent Sanders
01b2bc5a57 Improve doxygen comments and add todo for cache and backing store 2014-11-23 15:43:03 +00:00
Vincent Sanders
246a1fec05 remove constness from backing stores store method 2014-11-23 01:37:24 +00:00
Vincent Sanders
63c35da66e annotate element struct with packing attributes to reduce entry size 2014-11-23 01:25:14 +00:00
Vincent Sanders
08c7ef6bed Do not use anonymous union as it is not portable
unnamed unions are not portable to old compilers. When reloading data
ensure the heap allocation status is discarded.
2014-11-23 00:35:11 +00:00
Vincent Sanders
8b810ee4a1 change the persistant data store to owning the allocations 2014-11-22 23:56:43 +00:00
Vincent Sanders
eb87406758 update entry points to backing store ready for allowing differing object lifetimes 2014-11-20 22:28:19 +00:00
Vincent Sanders
69f4397fe4 Limit creation of store path directories.
Only create all elements of a path in the store when it is being
opened for creation instead of causing reads to create directories.
2014-11-19 16:26:29 +00:00
Vincent Sanders
92a1ac4fbb Improve backing store control data serialisation
By scheduling the control data to be maintained (entries index written
and headers updated) once activity occurs to update these control
structures rather than a single serialisation at browser exit the data
is more likely to be up to date and not lost on a crash.
2014-11-19 16:22:06 +00:00
Vincent Sanders
a79b30bd6f make backing store use rename to atomicly replace entries file 2014-11-19 11:26:27 +00:00
Vincent Sanders
e32a2ad46e Doxygen fixes 2014-11-09 15:28:03 +00:00
Vincent Sanders
56bb1b03c5 Doxygen cleanups 2014-11-09 12:50:30 +00:00
Vincent Sanders
d06df231bc Update the core to use the split operations table headers
Second in the series to decouple the core API usage from the frontends.
2014-10-16 22:33:43 +01:00
Vincent Sanders
219f505a65 version 1.1 of the backing store disc layout using base32 encoded
filenames to allow for case insensitive filenames.
2014-07-04 17:09:28 +01:00
Vincent Sanders
f1c2dde13b extend file table with mkdir all and make fs backing store use it.
enable fs backing store for RISC OS.
2014-06-05 12:06:47 +01:00
Michael Drake
bd804d3fe4 Avoid signed vs unsigned comparason warning. 2014-06-04 07:48:05 +01:00
Vincent Sanders
5899f6c16e turn off debugging and add some comments and todo from dsilvers 2014-06-03 22:30:04 +01:00
Vincent Sanders
e9d53022a4 write a cache tag file as an aid to backup software 2014-05-30 00:19:20 +01:00
Michael Drake
fb5af8a1b6 Check return value from write() to avoid build warnings. 2014-05-24 15:19:01 +01:00
Vincent Sanders
05932293f6 Add filesystem based backing store 2014-05-13 15:53:02 +01:00