* yet another wrapper around poll(). However it has certain
* advantages over pa_mainloop and suchlike:
*
- * 1) It uses timer_create() and POSIX real time signals to guarantee
- * optimal high-resolution timing. Starting with Linux 2.6.21 hrtimers
- * are available, and since right now only nanosleep() and the POSIX
- * clock and timer interfaces have been ported to hrtimers (and not
- * ppoll/pselect!) we have to combine ppoll() with timer_create(). The
- * fact that POSIX timers and POSIX rt signals are used internally is
- * completely hidden.
+ * 1) High resolution timers are used
*
* 2) It allows raw access to the pollfd data to users
*
typedef struct pa_rtpoll_item pa_rtpoll_item;
typedef enum pa_rtpoll_priority {
- PA_RTPOLL_EARLY = -100, /* For veeery important stuff, like handling control messages */
+ PA_RTPOLL_EARLY = -100, /* For very important stuff, like handling control messages */
PA_RTPOLL_NORMAL = 0, /* For normal stuff */
PA_RTPOLL_LATE = +100, /* For housekeeping */
PA_RTPOLL_NEVER = INT_MAX, /* For stuff that doesn't register any callbacks, but only fds to listen on */
* 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, pa_bool_t wait);
+int pa_rtpoll_run(pa_rtpoll *f, bool wait);
void pa_rtpoll_set_timer_absolute(pa_rtpoll *p, pa_usec_t usec);
void pa_rtpoll_set_timer_relative(pa_rtpoll *p, pa_usec_t usec);
void pa_rtpoll_set_timer_disabled(pa_rtpoll *p);
+/* Return true when the elapsed timer was the reason for
+ * the last pa_rtpoll_run() invocation to finish */
+bool pa_rtpoll_timer_elapsed(pa_rtpoll *p);
+
/* A new fd wakeup item for pa_rtpoll */
pa_rtpoll_item *pa_rtpoll_item_new(pa_rtpoll *p, pa_rtpoll_priority_t prio, unsigned n_fds);
void pa_rtpoll_item_free(pa_rtpoll_item *i);
/* 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. */
+ * iteration 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 value > 0, the poll is
- * skipped and the next iteraton of the loop will start
- * immediately.. */
+ * skipped and the next iteration 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