Sorry for the delay :), I was busy with other part of the project and
had to read documentation of libev before answering you.
Thanks for the reply.
The process is shutting down in 2 min after program starts.
I have to cancel watchers, destroy the loop and free memory.
If the process itself is shutting down (exiting?) then freeing the
watchers is just wasting cpu cycles, the OS does it for you, and much
faster.
I know that but parent process isn't OS.
So the right way is:
1) To store list of pointers to watchers.
2) When the callback rises, delete the pointer from the list and free
memory.
3) At the end of the process free memory with help of list.
On 14.10.2010 07:00, Marc Lehmann wrote:
On Fri, Oct 08, 2010 at 11:33:05AM +0300, vvvua<[email protected]> wrote:
Or maybe your goal is something else?
I don't have a list of pointers to watchers. Each watcher frees
memory when callback function is invoked.
So I have two ways to free memory:
1) Create a list of pointers and free all memory manually when
destroying a loop.
2) Generate events that invoke all registered callbacks using libev.
Is the second way possible? I understand, that libev doesn't free
memory allocated by user.
Sorry for the delay..
But yes, you can generate events for all registered watchers, _as long as you
keep the list of registered watchers yourself_, by either using ev_invoke or
ev_feed_event.
You could e.g. use EV_CUSTOM as a flag for the callback(s) to free the
memory. You could, of course also just free it yourself, or call the
callback yourself.
Keep in mind that libev itself might register events, or other parts of
your program, so even if libev had a list, it wouldn't be very helpful.
The process is shutting down in 2 min after program starts.
I have to cancel watchers, destroy the loop and free memory.
If the process itself is shutting down (exiting?) then freeing the
watchers is just wasting cpu cycles, the OS does it for you, and much
faster.
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