Releasing a Guarantee

Releasing a Guarantee

A guarantee ends under three circumstances,

when the process calls grio_remove_request() (see the grio_remove_request(3X) reference page)
when the requested duration expires
when all file descriptors held by the requesting process that refer to the guaranteed file are closed (an exception is discussed in the next topic)

When a guarantee ends, the guaranteed transfer capacity becomes available for other processes to reserve. When a guarantee expires but the file is not closed, the file remains usable for ordinary I/O, with no guarantee of rate.