[so] Asteptare

Andrei Hagiescu so@atlantis.cs.pub.ro
Thu, 13 Nov 2003 22:13:42 +0200


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O asteptare de genul urmator:

repeta la infinit:
    take mutex
    verificare resursa partajata (eventual break)
    release mutex

facuta de mai multe procese simultan, se considera a fi ok sau tinde =
spre o asteptare blocanta?
daca e ok, au toate procesele "sanse" egale de a face verificarea =
resursei?

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<DIV><FONT face=3DArial size=3D2>O asteptare de genul =
urmator:</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>repeta la infinit:</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>&nbsp;&nbsp;&nbsp; take =
mutex</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>&nbsp;&nbsp;&nbsp; verificare resursa=20
partajata&nbsp;(eventual break)</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>&nbsp;&nbsp;&nbsp; release =
mutex</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>facuta de mai multe procese simultan, =
se considera=20
a fi&nbsp;ok sau tinde spre o asteptare blocanta?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>daca e ok, au toate procesele "sanse" =
egale de a=20
face verificarea resursei?</FONT></DIV></BODY></HTML>

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