On 28-Mar-00 yodaiken@fsmlabs.com wrote:
>> IMHO, at least sharing PIDs would be a useful thing. Signal queues
>> would be nice, but there are other ways to deal with that.
>
> Can someone tell me why:
>
> pthread_creat( ....)
> if this is the first created thread
> rootpid = getpid();
> redefine getpid === return rootpid
>
> Doesn't work?
That would solve the problem of a given thread seeing its own thread, but it
doesn't deal with the problem of pthread signal semantics. Under pthreads, if
you send a signal to a process (a bunch of threads), it can be handled by any
thread which isn't blocking that signal. Linux only allows you to send signals
to a particular task. If you put all the tasks into a group you could signal
them all, but that's not right either, since the signal could be handled
multiple times by multiple threads.
J
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