Quote: type annotations--'guarded_by lock' for fields and 'requires lock_list' for methods; 1000 lines per programmer hour

Quotation Skeleton

We rely on the programmer to aid the … [race condition] … l on a field declaration states that the … is held whenever the field is accessed or … l_n on a method declaration states the locks … ,l_n are held on method entry; the type … that the method body is race-free given this … [p. 220] Most of the annotations were inserted based … lines of code per programmer hour.   Google-1   Google-2

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