0 if a computer disk, file, or memory is read-write, you can read, change, or add to the data in it --
In this case, the read-write head acts as an intermediary.
Because of these two factors, seqlocks are more efficient than traditional read-write locks for the situation where there are many readers and few writers.
Replication is supported between the read-write and the read-only copies.
This must typically be done before the file system is next mounted for read-write access.
For example, read-read operations are commutative (unlike read-write and the other possibilities) and thus read-read is not a conflict.
There are two types of (file) lock; read-only and read-write.
The data structure of the index was altered to accept concurrent read-write.
It indexes key-value pairs on single and multi core environments using lock free algorithms and allowing simultaneous read-write.
