Prototypes » History » Version 15
Greg Burri, 12/21/2008 08:55 PM
| 1 | 1 | Greg Burri | h1. Prototypes |
|---|---|---|---|
| 2 | |||
| 3 | 6 | Greg Burri | Prototypes are locate in the '/prototypes' directory in the repository. The goal is to write some code to try to resolve a particular problem which we don't know exactly how to solve. |
| 4 | 2 | Greg Burri | |
| 5 | 13 | Greg Burri | # Creating SHA-1 hash for each part of a file. See [[Libraries]] for the list of SHA-1 lib. We must find the quickest library. The reference in term of speed is _sha1sum_ from the openssl package. The speed is approximately 150Mo/s for a cached file for an Intel 1.8 GHz Core2 CPU. |
| 6 | 11 | Greg Burri | # Observing the modifications of the files structure to hash new added files and remove hash from the cache when a file is deleted. |
| 7 | 1 | Greg Burri | # Multicast UDP. |
| 8 | 15 | Greg Burri | # Serializing and exchanging message with _Protocol Buffers_ in Haskell. see http://hackage.haskell.org/cgi-bin/hackage-scripts/package/protocol-buffers. |
| 9 | 9 | Greg Burri | # Reading of filename with UTF8 characters. |
| 10 | 14 | Greg Burri | # Defining and testing the concurrent model. |
| 11 | 9 | Greg Burri | # Reading and writing the same file from different threads. |
| 12 | 8 | Greg Burri | # Efficient of the file transfer over TCP/IP with Haskell. It includes reading, streaming and writing. Comparisons with SMB and NFS. |