static void thread_func(void *userdata) { struct userdata *u = userdata; pa_assert(u); pa_assert(u->sink || u->source); pa_log_debug("Thread starting up"); if (u->core->realtime_scheduling) pa_make_realtime(u->core->realtime_priority); pa_thread_mq_install(&u->thread_mq); for (;;) { int ret; pa_bool_t need_timer = FALSE; if (u->sink) { if (PA_UNLIKELY(u->sink->thread_info.rewind_requested)) pa_sink_process_rewind(u->sink, 0); if (PA_SINK_IS_OPENED(u->sink->thread_info.state)) { do_write(u); need_timer = TRUE; } } if (u->source && PA_SOURCE_IS_OPENED(u->source->thread_info.state)) { do_read(u); need_timer = TRUE; } if (need_timer) pa_rtpoll_set_timer_relative(u->rtpoll, u->poll_timeout); else pa_rtpoll_set_timer_disabled(u->rtpoll); /* Hmm, nothing to do. Let's sleep */ if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0) goto fail; if (ret == 0) goto finish; } fail: /* If this was no regular exit from the loop we have to continue * processing messages until we received PA_MESSAGE_SHUTDOWN */ pa_asyncmsgq_post(u->thread_mq.outq, PA_MSGOBJECT(u->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL, NULL); pa_asyncmsgq_wait_for(u->thread_mq.inq, PA_MESSAGE_SHUTDOWN); finish: pa_log_debug("Thread shutting down"); }
int main(int argc, char *argv[]) { pa_rtpoll *p; pa_rtpoll_item *i, *w; struct pollfd *pollfd; p = pa_rtpoll_new(); i = pa_rtpoll_item_new(p, PA_RTPOLL_EARLY, 1); pa_rtpoll_item_set_before_callback(i, before); pa_rtpoll_item_set_after_callback(i, after); pollfd = pa_rtpoll_item_get_pollfd(i, NULL); pollfd->fd = 0; pollfd->events = POLLIN; w = pa_rtpoll_item_new(p, PA_RTPOLL_NORMAL, 0); pa_rtpoll_item_set_before_callback(w, worker); pa_rtpoll_set_timer_relative(p, 10000000); /* 10 s */ pa_rtpoll_run(p, 1); pa_rtpoll_item_free(i); i = pa_rtpoll_item_new(p, PA_RTPOLL_EARLY, 1); pa_rtpoll_item_set_before_callback(i, before); pa_rtpoll_item_set_after_callback(i, after); pollfd = pa_rtpoll_item_get_pollfd(i, NULL); pollfd->fd = 0; pollfd->events = POLLIN; pa_rtpoll_run(p, 1); pa_rtpoll_item_free(i); pa_rtpoll_item_free(w); pa_rtpoll_free(p); return 0; }