https://homeostasis.scs.carleton.ca/wiki/index.php?action=history&feed=atom&title=Talk%3ADistOS_2015W_Session_4Talk:DistOS 2015W Session 4 - Revision history2026-06-02T21:53:39ZRevision history for this page on the wikiMediaWiki 1.42.1https://homeostasis.scs.carleton.ca/wiki/index.php?title=Talk:DistOS_2015W_Session_4&diff=19730&oldid=prevDeepshree: Created page with "'''Amebo Operating System: Capablities''' • Pointer to the object • Capability assigning right to perform to some operation to the object ticket • Communicate wide ..."2015-01-27T18:25:28Z<p>Created page with "'''Amebo Operating System: Capablities''' • Pointer to the object • Capability assigning right to perform to some operation to the object ticket • Communicate wide ..."</p>
<p><b>New page</b></p><div>'''Amebo Operating System: Capablities''' <br />
• Pointer to the object<br />
• Capability assigning right to perform to some operation to the object ticket <br />
• Communicate wide area network <br />
• a kind of ticket or key that allows the holder of the capa- bility to perform some (not neces- sarily all) <br />
• Each user process owns some collection of capabilities, which together define the set of objects it may access and the types of operations that my ne performed on each <br />
• After the server has performed the operation, it sends back a reply message that unblocks the client <br />
• Sending messages, blocking and accepting forms the remote procedure call that can be encapsulate using to make entire remote operation look like local procedure <br />
• Second field: used by the sever to identify which of its objects is being addressed server port and object number identify object which operation to performed <br />
• Generates 48-bit random number <br />
• The third field is the right field which contains a bit map telling which operation the holder of the capability may performed <br />
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'''Thread Management:'''<br />
• Same process have multiple thread and each process has its own registered counter and stack <br />
• Behave like process<br />
• It can synchronized using mutex semaphore <br />
• File: Multiple thread, <br />
• Blocked when there's multiple threads <br />
• Buttlet thread the mutex<br />
• The careful reader may have noticed that user process can pull 813kbytes/sec</div>Deepshree