3 commits

Author	SHA1	Message	Date
Baraa Hamodi	21e95811d1	Updated all copyright headers to the new format.	2016-02-09 15:12:00 -08:00
Dhruba Borthakur	9cd221094c	Add appropriate LICENSE and Copyright message. ... Summary: Add appropriate LICENSE and Copyright message. Test Plan: make check Reviewers: CC: Task ID: # Blame Rev:	2013-10-16 17:48:41 -07:00
Dhruba Borthakur	f7975ac733	Implement RowLocks for assoc schema ... Summary: Each assoc is identified by (id1, assocType). This is the rowkey. Each row has a read/write rowlock. There is statically allocated array of 2000 read/write locks. A rowkey is murmur-hashed to one of the read/write locks. assocPut and assocDelete acquires the rowlock in Write mode. The key-updates are done within the rowlock with a atomic nosync batch write to leveldb. Then the rowlock is released and a write-with-sync is done to sync leveldb transaction log. Test Plan: added unit test Reviewers: heyongqiang Reviewed By: heyongqiang Differential Revision: https://reviews.facebook.net/D5859	2012-10-03 23:19:01 -07:00