Messages in this thread | | | Date | Wed, 20 Nov 1996 17:11:19 -0500 | From | "Theodore Y. Ts'o" <> | Subject | Re: real POSIX.1b semaphores |
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From: Ulrich Drepper <drepper@myware.rz.uni-karlsruhe.de> Date: 20 Nov 1996 19:13:22 +0100
> Because of the security problems, I don't believe global unnamed > semaphores are useful.
But they have to be available. You can place the semaphore descriptor in a shared memory segment and make it available to other processes.
POSIX.1 always says:
>>Either the implemenation shall support the XXX function as described above or the XXX function shall fail.<<
This means we really have to implement it.
True, we have to implement it. But we don't have to spend a lot of time getting it super fast, or particularily elegant. I'd concetrate on those parts of the POSIX.1b spec that are likely to be actually used by real applications.....
- Ted
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