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Marco Realacci 2025-04-02 23:25:03 +02:00
parent af2d7f19c7
commit 6492d433d2
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Concurrent Systems/test/Untitled.md
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@ -3,10 +3,12 @@ GLOB_MUTEX and R_MUTEX semaphores init. at 1
R a shared register init. at 0
begin_read() :=
PRIO_MUTEX.down()
R_MUTEX.down()
R++ # currently active readers
if R = 1 then GLOB_MUTEX.down()
R_MUTEX.up()
PRIO_MUTEX.up()
return
end_read() :=