The grok project data structures and process communication

Abstract

An overview of the structured data types proposed for the grok language is given. The proposal represents a uniform approach to arrays, records and procedures by regarding them as specialized occurences of the same underlying structure. Structures are partitioned into three classes according to the number of references pointing to the structure at the same time, and we show how this may be utilised in synchronization of parallel processes. The well known producer-consumer example illustrates this.