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simplify rt loops a bit by moving more code into pa_rtpoll. It is now possible to attach "work" functions to a pa_rtpoll_item, which will be called in each loop iteration. This allows us to hide the message processing in the RT loops and to drop the seperate sink_input->process hooks. Basically, only the driver-specific code remains in the RT loops.

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/lennart@1822 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2007-09-14 21:51:05 +00:00
parent f0b9dce32e
commit 3396b65f15
19 changed files with 182 additions and 272 deletions
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20
src/pulsecore/rtpoll.h
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@ -69,7 +69,9 @@ void pa_rtpoll_install(pa_rtpoll *p);
/* Sleep on the rtpoll until the time event, or any of the fd events
* is triggered. If "wait" is 0 we don't sleep but only update the
* struct pollfd. */
* struct pollfd. Returns negative on error, positive if the loop
* should continue to run, 0 when the loop should be terminated
* cleanly. */
int pa_rtpoll_run(pa_rtpoll *f, int wait);
void pa_rtpoll_set_timer_absolute(pa_rtpoll *p, const struct timespec *ts);
@ -86,18 +88,30 @@ void pa_rtpoll_item_free(pa_rtpoll_item *i);
* using the pointer and don't save the result anywhere */
struct pollfd *pa_rtpoll_item_get_pollfd(pa_rtpoll_item *i, unsigned *n_fds);
/* Set the callback that shall be called when there's time to do some work: If the
* callback returns a value > 0, the poll is skipped and the next
* iteraton of the loop will start immediately. */
void pa_rtpoll_item_set_work_callback(pa_rtpoll_item *i, int (*work_cb)(pa_rtpoll_item *i));
/* Set the callback that shall be called immediately before entering
* the sleeping poll: If the callback returns a negative value, the
* poll is skipped. */
* the sleeping poll: If the callback returns a value > 0, the poll is
* skipped and the next iteraton of the loop will start
* immediately.. */
void pa_rtpoll_item_set_before_callback(pa_rtpoll_item *i, int (*before_cb)(pa_rtpoll_item *i));
/* Set the callback that shall be called immediately after having
* entered the sleeping poll */
void pa_rtpoll_item_set_after_callback(pa_rtpoll_item *i, void (*after_cb)(pa_rtpoll_item *i));
void pa_rtpoll_item_set_userdata(pa_rtpoll_item *i, void *userdata);
void* pa_rtpoll_item_get_userdata(pa_rtpoll_item *i);
pa_rtpoll_item *pa_rtpoll_item_new_fdsem(pa_rtpoll *p, pa_rtpoll_priority_t prio, pa_fdsem *s);
pa_rtpoll_item *pa_rtpoll_item_new_asyncmsgq(pa_rtpoll *p, pa_rtpoll_priority_t prio, pa_asyncmsgq *q);
/* Requests the loop to exit. Will cause the next iteration of
* pa_rtpoll_run() to return 0 */
void pa_rtpoll_quit(pa_rtpoll *p);
#endif