static void asyncmsgq_read_cb(pa_mainloop_api*api, pa_io_event* e, int fd, pa_io_event_flags_t events, void *userdata) {
pa_thread_mq *q = userdata;
pa_asyncmsgq *aq;
pa_assert(pa_asyncmsgq_read_fd(q->outq) == fd);
pa_assert(events == PA_IO_EVENT_INPUT);
pa_asyncmsgq_ref(aq = q->outq);
pa_asyncmsgq_read_after_poll(aq);
for (;;) {
pa_msgobject *object;
int code;
void *data;
int64_t offset;
pa_memchunk chunk;
/* Check whether there is a message for us to process */
while (pa_asyncmsgq_get(aq, &object, &code, &data, &offset, &chunk, 0) >= 0) {
int ret;
ret = pa_asyncmsgq_dispatch(object, code, data, offset, &chunk);
pa_asyncmsgq_done(aq, ret);
}
if (pa_asyncmsgq_read_before_poll(aq) == 0)
break;
}
pa_asyncmsgq_unref(aq);
}
int main(int argc, char *argv[]) {
pa_asyncmsgq *q;
pa_thread *t;
pa_assert_se(q = pa_asyncmsgq_new(0));
pa_assert_se(t = pa_thread_new("test", the_thread, q));
pa_log_info("Operation A post");
pa_asyncmsgq_post(q, NULL, OPERATION_A, NULL, 0, NULL, NULL);
pa_thread_yield();
pa_log_info("Operation B post");
pa_asyncmsgq_post(q, NULL, OPERATION_B, NULL, 0, NULL, NULL);
pa_thread_yield();
pa_log_info("Operation C send");
pa_asyncmsgq_send(q, NULL, OPERATION_C, NULL, 0, NULL);
pa_thread_yield();
pa_log_info("Quit post");
pa_asyncmsgq_post(q, NULL, QUIT, NULL, 0, NULL, NULL);
pa_thread_free(t);
pa_asyncmsgq_unref(q);
return 0;
}
void pa__done(pa_module*m) {
struct userdata *u;
pa_assert(m);
if (!(u = m->userdata))
return;
if (u->client)
jack_client_close(u->client);
if (u->sink)
pa_sink_unlink(u->sink);
if (u->thread) {
pa_asyncmsgq_send(u->thread_mq.inq, NULL, PA_MESSAGE_SHUTDOWN, NULL, 0, NULL);
pa_thread_free(u->thread);
}
pa_thread_mq_done(&u->thread_mq);
if (u->sink)
pa_sink_unref(u->sink);
if (u->rtpoll_item)
pa_rtpoll_item_free(u->rtpoll_item);
if (u->jack_msgq)
pa_asyncmsgq_unref(u->jack_msgq);
if (u->rtpoll)
pa_rtpoll_free(u->rtpoll);
pa_xfree(u);
}
void pa_asyncmsgq_flush(pa_asyncmsgq *a, bool run) {
pa_assert(PA_REFCNT_VALUE(a) > 0);
for (;;) {
pa_msgobject *object;
int code;
void *data;
int64_t offset;
pa_memchunk chunk;
int ret;
if (pa_asyncmsgq_get(a, &object, &code, &data, &offset, &chunk, false) < 0)
return;
if (!run) {
pa_asyncmsgq_done(a, -1);
continue;
}
pa_asyncmsgq_ref(a);
ret = pa_asyncmsgq_dispatch(object, code, data, offset, &chunk);
pa_asyncmsgq_done(a, ret);
pa_asyncmsgq_unref(a);
}
}
int pa_asyncmsgq_wait_for(pa_asyncmsgq *a, int code) {
int c;
pa_assert(PA_REFCNT_VALUE(a) > 0);
pa_asyncmsgq_ref(a);
do {
pa_msgobject *o;
void *data;
int64_t offset;
pa_memchunk chunk;
int ret;
if (pa_asyncmsgq_get(a, &o, &c, &data, &offset, &chunk, true) < 0)
return -1;
ret = pa_asyncmsgq_dispatch(o, c, data, offset, &chunk);
pa_asyncmsgq_done(a, ret);
} while (c != code);
pa_asyncmsgq_unref(a);
return 0;
}
void pa_thread_mq_done(pa_thread_mq *q) {
pa_assert(q);
/* Since we are called from main context we can be sure that the
* inq is empty. However, the outq might still contain messages
* for the main loop, which we need to dispatch (e.g. release
* msgs, other stuff). Hence do so if we aren't currently
* dispatching anyway. */
if (!pa_asyncmsgq_dispatching(q->outq))
pa_asyncmsgq_flush(q->outq, true);
q->mainloop->io_free(q->read_event);
q->mainloop->io_free(q->write_event);
q->read_event = q->write_event = NULL;
pa_asyncmsgq_unref(q->inq);
pa_asyncmsgq_unref(q->outq);
q->inq = q->outq = NULL;
q->mainloop = NULL;
}
void pa__done(pa_module*m) {
struct userdata *u;
pa_assert(m);
if (!(u = m->userdata))
return;
teardown(u);
if (u->memblockq)
pa_memblockq_free(u->memblockq);
if (u->asyncmsgq)
pa_asyncmsgq_unref(u->asyncmsgq);
pa_xfree(u);
}
int pa_asyncmsgq_process_one(pa_asyncmsgq *a) {
pa_msgobject *object;
int code;
void *data;
pa_memchunk chunk;
int64_t offset;
int ret;
pa_assert(PA_REFCNT_VALUE(a) > 0);
if (pa_asyncmsgq_get(a, &object, &code, &data, &offset, &chunk, false) < 0)
return 0;
pa_asyncmsgq_ref(a);
ret = pa_asyncmsgq_dispatch(object, code, data, offset, &chunk);
pa_asyncmsgq_done(a, ret);
pa_asyncmsgq_unref(a);
return 1;
}
