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root / trunk / Pithos.Network / Signature.cs @ dd4c7403

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# Date Author Comment
19265570 10/02/2012 04:50 pm Panagiotis Kanavos

Changes to speed up processing a large number of of newly added files:
- File events are queued for asynchronous processing instead of raising tasks.
- Hashes for multiple files are calculated in parallel if there are more than 20 files that need hashing
8d38a269 10/02/2012 02:22 pm Panagiotis Kanavos

Added cloning of HttpRequestMessage to allow retries using the messages themselves
Various async modifications to overcome blocking during network faults
9a1c7fda 09/26/2012 06:53 pm Panagiotis Kanavos

Removed commented code
dc18b138 09/26/2012 06:28 pm Panagiotis Kanavos

Various storage and progress changes
3906933e 09/19/2012 04:37 pm George Pantazis

Removed MD5 Calculations for Old and New FileState
Change DB Scheme (on create, update)
removed the md5 hash creation on merkle hash.
Removed all MD5BlockCalculator.cs functions

DB NEEDS TO BE REMOVED before updating the client. <<< "Hint update Inno"

Signed-off-by: George Pantazis <>
796a7c29 09/04/2012 09:25 pm Panagiotis Kanavos

Replaced .NET hashing with OpenSSL
b1303755 09/04/2012 07:00 pm Panagiotis Kanavos

Changed ETag calculation to SHA256
ETag not posted on directory uploads, to avoid 422 errors
Etag posted in other cases, even if the server ignores it
Merkle block hashes are now stored in the database
Hash calculations first check the state database for existing valid hashes, to avoid recalculating the Merkle hash for unchanged files
12c87c0e 08/29/2012 05:57 pm Panagiotis Kanavos

Changes to hash calculation.
SyncSingleItem not yet tested
c875d683 07/05/2012 02:03 pm Panagiotis Kanavos

Added cancellation to hashing
cd942434 07/03/2012 01:07 pm Panagiotis Kanavos

Added check for missing parents on shared folders, disabled for now
f5f9b225 07/02/2012 01:50 pm Panagiotis Kanavos

Reduced buffer size while hashing to 16K
e1fa1d21 06/28/2012 01:45 am Panagiotis Kanavos

Added checks for hashing of cache files
Modified StoreInfoDirect to avoid multiple checks when trying to update or insert
db63c1ae 06/25/2012 08:14 pm Panagiotis Kanavos

Modified TreeHash calculations to compute MD5 in parallel with SHA block hashing
a60e5887 06/23/2012 05:43 pm Panagiotis Kanavos

Added check for last MD5 modification, to avoid redundant recalculation of MD5
4b58c004 06/18/2012 11:42 pm Panagiotis Kanavos

Restored batching
Now handling renames in batching
Fixed blocking issues
c945b450 05/31/2012 10:43 pm Panagiotis Kanavos

Change to Polling agent
43dd02a8 05/09/2012 10:41 pm Panagiotis Kanavos

Fixes to hashing
Fixes to selective sync
72174cd5 03/27/2012 05:33 pm Panagiotis Kanavos

Added WebExtensions.cs with methods for logging request and response contents
Modified the maximum error response size for HttpWebRequest
174bbb6e 03/06/2012 01:19 pm Panagiotis Kanavos Multiple changes:
  • Calculate hashes in place
  • Use SHA1 to detect local changes before starting the Merkle hash calculation
  • Fixes to renaming, downloading behavior
  • Changes to logging
9d2c0fc0 03/03/2012 09:37 pm Panagiotis Kanavos

Replaced hashing algorithm with inplace version
6bcdd8e2 03/03/2012 02:49 pm Panagiotis Kanavos

Logging improvements
255f5f86 02/19/2012 09:41 pm Panagiotis Kanavos

Added header to all files. Closes #2064
34bdb91d 02/16/2012 05:32 pm Panagiotis Kanavos

Simplified proxy management code
422c9598 02/13/2012 11:00 pm Panagiotis Kanavos

Added SnapshotDifferencer.cs to calculate the difference between the current and previous listings of the server files
Changed hashing to use an ActionBlock with parallelism options.
Added parallelism property in Preferences
73cdd135 01/05/2012 10:10 pm Panagiotis Kanavos

Simplified several functions by replacing task continuations with async/await
437abfca 11/03/2011 06:00 pm Panagiotis Kanavos

Added Async CTP
cfed7823 10/13/2011 11:14 pm Panagiotis Kanavos

Added log4net for client profile
Refactored to allow retrieval of shared objects
0af3141d 10/10/2011 11:41 pm Panagiotis Kanavos

Multiple changes to enable delete detection, safer uploading
a64c87c8 10/09/2011 07:45 pm Panagiotis Kanavos

Added BlockUpdater.cs to perform block updates in a separate class. Will include TxF in a future version
Simplified agent loop code
a27aa447 10/09/2011 03:22 pm Panagiotis Kanavos

Uploading and downloading with hashes
bfc13ed8 10/03/2011 11:58 pm Panagiotis Kanavos

Synch fixes
6e25cc48 10/03/2011 07:10 pm Panagiotis Kanavos

Parallelized hash calculations
5ce54458 10/02/2011 11:57 pm Panagiotis Kanavos

Fixed ceiling calculation
1caef52e 10/02/2011 11:52 pm Panagiotis Kanavos

Added treehash calculation