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use EPOLLET when modifying with epoll_ctl()

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hyunghwan.chung
2017-12-28 07:26:19 +00:00
parent edba0207fb
commit dbb38a5d31
3 changed files with 11 additions and 63 deletions
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58
moo/kernel/Process.moo
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@ -129,64 +129,6 @@ TODO: how to prohibit wait and signal???
^block ensure: [ self signal ]
}
}
(*
xxx := Semaphore new.
xxx on: #signal do: [ ].
========= CASE 1 ====================
sg := SemaphoreGroup with (xxx, yyy, zzz).
System signal: xxx onInput: aaa.
System signal: yyy onInput: bbb.
System signal: zzz onOutput: ccc.
while (true)
{
sem := sg wait.
if (sem == xxx)
{
}
elsif (sem == yyy)
{
}
elsif (sem == zzz)
{
}.
}
============ CASE 2====================
### ASSOCIATE CALLBACK WITH SEMAPHORE.
sg := SemaphoreGroup with (xxx, yyy, zzz).
oldaction := xxx signalAction: [ ... ]. ### similar interface like unix system call signal()???? method signalAction: block {} , method signalAction { ^self.signalAction }
yyy signalAction: [ ... ].
zzz signalAction: [ ... ].
System signal: xxx onInput: aaa.
System signal: yyy onInput: bbb.
System signal: zzz onOutput: ccc.
while (true)
{
sem := sg wait. ### the action associated with the semaphore must get executed. => wait may be a primitive. the primitive handler may return failure... if so, the actual primitive body can execute the action easily
}
Semaphore>>method wait
{
<primitive: #Semaphore_wait>
if (errorCode == NO ERROR)
{
self.signalAction value. ## which is better???
self.sginalAction value: self.
}
}
*)
class SemaphoreGroup(Object)