November 2012
Intermediate to advanced
888 pages
54h 46m
Polish
Content preview from Ruby. Receptury
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16.12. Tworzenie współdzielonej „tablicy ogłoszeń”
Podziękowania dla Jamesa Edwarda Graya II
Problem
Chcemy stworzyć sieciowy odpowiednik tablicy ogłoszeń. Zdalne programy mogą umieszczać obiekty Ruby na tablicy, sprawdzać umieszczone na niej obiekty lub je usuwać.
Rozwiązanie
Można by skorzystać z synchronizowanego hasza (tak, jak w „16.10. Współdzielenie haszów przez dowolną liczbę komputerów”), ale biblioteka Rinda[114] udostępnia strukturę danych TupleSpace, którą zoptymalizowano do wykorzystania w programowaniu rozproszonym. Struktura ta doskonale się sprawdza w przypadku, gdy kilka klientów umieszcza dane na tablicy, a inne przetwarzają je lub pobierają.
Utwórzmy aplikację, która umożliwi klientom działającym w różnych miejscach ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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