Communications Technical Reference, Volume 2 testb Utility Purpose Checks for an available buffer.
Parameters size Specifies the buffer size.
Specifies the relative importance of the allocated blocks to the module. The pri parameter is currently unused and is maintained only for compatibility with applications developed prior to UNIX System V Release 4.0. If the buffer is available, the testb utility returns a value of 1. Otherwise, it returns a value of 0. The allocb utility.