Quote: V reads and writes blocks without a file position; idempotent transactions allows kernel to ignore reply messages

Quotation Skeleton

Finally, reading and writing specifies the required block … and writing to be made idempotent. That is, … effect as performing it once; the same can … On stream devices such as terminals, to implement … filter out duplicate writes to the last block … [p.31] With idempotent transactions, the kernel does not … reply message includes a segment the size of …   Google-1   Google-2

Copyright clearance needed for quotation.

Additional Titles

Quote: V stream devices, e.g., terminals, must store the last block to provide idempotent transactions

Related Topics

Topic: file input/output (21 items)
Topic: database transactions (26 items)
Topic: examples of file systems (44 items)
Topic: I/O streams (17 items)