Some successful collision attacks have been carried out on sha1 with speculation that more are possible.
http://en.wikipedia.org/wiki/Cryptographic_hash_function#Cryptographic_hash_algorithms
No successful attacks have been shown on sha256, which makes it less likely that anybody will be able to engineer an asset hash collision in the future.
Tradeoff is more storage required for hashes, and more cpu to hash, though this is neglible compared to db operations and network access.
length is not a multiple of the stride, return the original list.
Also, enforce that sort is ascending only when the ascending
parameter is 1, and not when it is != 0
Whether this is worthwhile is debatable since here we are not transmitting data over a network
In addition, jpeg2000 (the biggest data hog) is already a compressed image format.
May not remain.
This allows scripts to run in child prims that are outside region boundaries.
This is an interim patch applied from http://opensimulator.org/mantis/view.php?id=5899 though it does not resolve that bug
Thanks tglion!
Revert " fix the last fix. Regions are square but... Also remove the 0.5 offset in map position. It was apparently needed to fix we having nsamples = size and not size + 1."
This reverts commit 15bc539bd4.
This is an extremely crude implemenation which almost works by accident. Nevertheless it does work.
It can be tested with the instructions at http://opensimulator.org/wiki/Feature_Proposals/Deduplicating_Asset_Service#Testing
It does not interact at all with the existing asset service or any data stored there.
This code is subject to change without notice and should not be used for anything other than gawking.
This is the start of exploring the creation of a bundled OpenSimulator asset service that does de-duplication and possibly file storage of assets.
Along the lines of coyled's SRAS, but not intended to replace, merely to act as a more performant bundled default.
Might end up nicking stuff from kcozen's patch at http://opensimulator.org/mantis/view.php?id=5429
More details at http://opensimulator.org/wiki/Feature_Proposals/Deduplicating_Asset_Service
Feedback and discussion welcome as commits are made.
This is already being done in the other place where a sensor is added.
Adding a sensor whilst another thread is iterating over the sensor list can cause a concurrency exception.
are osReplaceString(string source, string patter, string replace, integer count, integer start)
The count parameter specifies the total number of replacements to make, -1 makes
all replacements.
This is so that the static MainConsole.Instance doesn't retain references to methods registered by scene and other modules to service commands.
This prevents the scene from being garbage collected at the end of a test.
This is not the final thing preventing GC - next up is the timer started by SimStatsReporter that holds a reference to Scene that prevents end of test gc.
Justin Clark-Casey (justincc)