Messages in this thread |  | | Date | Tue, 7 Jan 1997 14:59:35 +0100 (MET) | From | Ingo Molnar <> | Subject | Re: Suggestion for Linux 2.3 |
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On Tue, 7 Jan 1997, William Burrow wrote:
> In different note, someone pointed out to me that in some cases an > application is required to know when a disk write occurs. Would it be > possible to have some mechanism in the buffer/cache system to send a > signal to an app when buffers have bee flushed that requested this signal?
you can do this with threads, in user-space, using LinuxThreads:
------------------------------------------------------> pthread_cond_init(cond1); pthread_create(newthread,do_controlled_async_writeout);
<do stuff>
pthread_cond_wait(cond1);
...
do_controlled_async_writeout() { do_a_blocking_write(); pthread_cond_signal(cond1); pthread_exit(this); } <------------------------------------------------------
or whatever synronization method you want, this conditional variable is just one example.
this solution is fast, cheap and robust.
-- mingo
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