static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
struct userdata *u = PA_SINK(o)->userdata;
switch (code) {
case PA_SINK_MESSAGE_GET_LATENCY: {
pa_usec_t w, r;
r = pa_smoother_get(u->smoother, pa_rtclock_now());
w = pa_bytes_to_usec((uint64_t) u->offset + u->memchunk.length, &u->sink->sample_spec);
*((int64_t*) data) = (int64_t)w - r;
return 0;
}
case SINK_MESSAGE_PASS_SOCKET: {
struct pollfd *pollfd;
pa_assert(!u->rtpoll_item);
u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
pollfd->fd = u->fd;
pollfd->events = pollfd->revents = 0;
return 0;
}
}
return pa_sink_process_msg(o, code, data, offset, chunk);
}
static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
struct userdata *u = PA_SINK(o)->userdata;
switch (code) {
case PA_SINK_MESSAGE_SET_STATE:
switch ((pa_sink_state_t) PA_PTR_TO_UINT(data)) {
case PA_SINK_SUSPENDED:
pa_assert(PA_SINK_IS_OPENED(u->sink->thread_info.state));
pa_smoother_pause(u->smoother, pa_rtclock_now());
break;
case PA_SINK_IDLE:
case PA_SINK_RUNNING:
if (u->sink->thread_info.state == PA_SINK_SUSPENDED)
pa_smoother_resume(u->smoother, pa_rtclock_now(), TRUE);
break;
case PA_SINK_UNLINKED:
case PA_SINK_INIT:
case PA_SINK_INVALID_STATE:
;
}
break;
case PA_SINK_MESSAGE_GET_LATENCY: {
pa_usec_t w, r;
r = pa_smoother_get(u->smoother, pa_rtclock_now());
w = pa_bytes_to_usec((uint64_t) u->offset + u->memchunk.length, &u->sink->sample_spec);
*((pa_usec_t*) data) = w > r ? w - r : 0;
return 0;
}
case SINK_MESSAGE_PASS_SOCKET: {
struct pollfd *pollfd;
pa_assert(!u->rtpoll_item);
u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
pollfd->fd = u->fd;
pollfd->events = pollfd->revents = 0;
return 0;
}
}
return pa_sink_process_msg(o, code, data, offset, chunk);
}
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;
}
static void build_pollfd(struct userdata *u) {
struct pollfd *pollfd;
pa_assert(u);
pa_assert(!u->rtpoll_item);
u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
pollfd->fd = u->fd;
pollfd->events = 0;
pollfd->revents = 0;
}
int pa__init(pa_module *m) {
struct userdata *u;
struct stat st;
pa_sample_spec ss;
pa_channel_map map;
pa_modargs *ma;
struct pollfd *pollfd;
pa_source_new_data data;
pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("Failed to parse module arguments.");
goto fail;
}
ss = m->core->default_sample_spec;
map = m->core->default_channel_map;
if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) {
pa_log("Invalid sample format specification or channel map");
goto fail;
}
m->userdata = u = pa_xnew0(struct userdata, 1);
u->core = m->core;
u->module = m;
pa_memchunk_reset(&u->memchunk);
u->rtpoll = pa_rtpoll_new();
if (pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll) < 0) {
pa_log("pa_thread_mq_init() failed.");
goto fail;
}
u->filename = pa_runtime_path(pa_modargs_get_value(ma, "file", DEFAULT_FILE_NAME));
if (mkfifo(u->filename, 0666) < 0) {
pa_log("mkfifo('%s'): %s", u->filename, pa_cstrerror(errno));
goto fail;
}
if ((u->fd = pa_open_cloexec(u->filename, O_RDWR, 0)) < 0) {
pa_log("open('%s'): %s", u->filename, pa_cstrerror(errno));
goto fail;
}
pa_make_fd_nonblock(u->fd);
if (fstat(u->fd, &st) < 0) {
pa_log("fstat('%s'): %s", u->filename, pa_cstrerror(errno));
goto fail;
}
if (!S_ISFIFO(st.st_mode)) {
pa_log("'%s' is not a FIFO.", u->filename);
goto fail;
}
pa_source_new_data_init(&data);
data.driver = __FILE__;
data.module = m;
pa_source_new_data_set_name(&data, pa_modargs_get_value(ma, "source_name", DEFAULT_SOURCE_NAME));
pa_proplist_sets(data.proplist, PA_PROP_DEVICE_STRING, u->filename);
pa_proplist_setf(data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Unix FIFO source %s", u->filename);
pa_source_new_data_set_sample_spec(&data, &ss);
pa_source_new_data_set_channel_map(&data, &map);
if (pa_modargs_get_proplist(ma, "source_properties", data.proplist, PA_UPDATE_REPLACE) < 0) {
pa_log("Invalid properties");
pa_source_new_data_done(&data);
goto fail;
}
u->source = pa_source_new(m->core, &data, PA_SOURCE_LATENCY);
pa_source_new_data_done(&data);
if (!u->source) {
pa_log("Failed to create source.");
goto fail;
}
u->source->parent.process_msg = source_process_msg;
u->source->userdata = u;
pa_source_set_asyncmsgq(u->source, u->thread_mq.inq);
pa_source_set_rtpoll(u->source, u->rtpoll);
pa_source_set_fixed_latency(u->source, pa_bytes_to_usec(pa_pipe_buf(u->fd), &u->source->sample_spec));
u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
pollfd->fd = u->fd;
pollfd->events = pollfd->revents = 0;
if (!(u->thread = pa_thread_new("pipe-source", thread_func, u))) {
pa_log("Failed to create thread.");
goto fail;
}
pa_source_put(u->source);
pa_modargs_free(ma);
return 0;
fail:
if (ma)
pa_modargs_free(ma);
pa__done(m);
return -1;
}
static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
struct userdata *u = PA_SINK(o)->userdata;
switch (code) {
case PA_SINK_MESSAGE_SET_STATE:
switch ((pa_sink_state_t) PA_PTR_TO_UINT(data)) {
case PA_SINK_SUSPENDED:
pa_assert(PA_SINK_IS_OPENED(u->sink->thread_info.state));
pa_smoother_pause(u->smoother, pa_rtclock_now());
/* Issue a FLUSH if we are connected */
if (u->fd >= 0) {
pa_raop_flush(u->raop);
}
break;
case PA_SINK_IDLE:
case PA_SINK_RUNNING:
if (u->sink->thread_info.state == PA_SINK_SUSPENDED) {
pa_smoother_resume(u->smoother, pa_rtclock_now(), true);
/* The connection can be closed when idle, so check to
see if we need to reestablish it */
if (u->fd < 0)
pa_raop_connect(u->raop);
else
pa_raop_flush(u->raop);
}
break;
case PA_SINK_UNLINKED:
case PA_SINK_INIT:
case PA_SINK_INVALID_STATE:
;
}
break;
case PA_SINK_MESSAGE_GET_LATENCY: {
pa_usec_t w, r;
r = pa_smoother_get(u->smoother, pa_rtclock_now());
w = pa_bytes_to_usec((u->offset - u->encoding_overhead + (u->encoded_memchunk.length / u->encoding_ratio)), &u->sink->sample_spec);
*((pa_usec_t*) data) = w > r ? w - r : 0;
return 0;
}
case SINK_MESSAGE_PASS_SOCKET: {
struct pollfd *pollfd;
pa_assert(!u->rtpoll_item);
u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
pollfd->fd = u->fd;
pollfd->events = POLLOUT;
/*pollfd->events = */pollfd->revents = 0;
if (u->sink->thread_info.state == PA_SINK_SUSPENDED) {
/* Our stream has been suspended so we just flush it.... */
pa_raop_flush(u->raop);
}
return 0;
}
case SINK_MESSAGE_RIP_SOCKET: {
if (u->fd >= 0) {
pa_close(u->fd);
u->fd = -1;
} else
/* FIXME */
pa_log("We should not get to this state. Cannot rip socket if not connected.");
if (u->sink->thread_info.state == PA_SINK_SUSPENDED) {
pa_log_debug("RTSP control connection closed, but we're suspended so let's not worry about it... we'll open it again later");
if (u->rtpoll_item)
pa_rtpoll_item_free(u->rtpoll_item);
u->rtpoll_item = NULL;
} else {
/* Question: is this valid here: or should we do some sort of:
return pa_sink_process_msg(PA_MSGOBJECT(u->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL);
?? */
pa_module_unload_request(u->module, true);
}
return 0;
}
}
return pa_sink_process_msg(o, code, data, offset, chunk);
}
int pa__init(pa_module *m) {
struct userdata *u = NULL;
const char *p;
int fd = -1;
int buffer_size;
int mode;
int record = 1, playback = 1;
pa_sample_spec ss;
pa_channel_map map;
pa_modargs *ma = NULL;
char *t;
struct pollfd *pollfd;
pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("failed to parse module arguments.");
goto fail;
}
if (pa_modargs_get_value_boolean(ma, "record", &record) < 0 || pa_modargs_get_value_boolean(ma, "playback", &playback) < 0) {
pa_log("record= and playback= expect numeric argument.");
goto fail;
}
if (!playback && !record) {
pa_log("neither playback nor record enabled for device.");
goto fail;
}
mode = (playback&&record) ? O_RDWR : (playback ? O_WRONLY : (record ? O_RDONLY : 0));
buffer_size = 16384;
if (pa_modargs_get_value_s32(ma, "buffer_size", &buffer_size) < 0) {
pa_log("failed to parse buffer size argument");
goto fail;
}
ss = m->core->default_sample_spec;
if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) {
pa_log("failed to parse sample specification");
goto fail;
}
if ((fd = open(p = pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), mode | O_NONBLOCK)) < 0)
goto fail;
pa_log_info("device opened in %s mode.", mode == O_WRONLY ? "O_WRONLY" : (mode == O_RDONLY ? "O_RDONLY" : "O_RDWR"));
if (pa_solaris_auto_format(fd, mode, &ss) < 0)
goto fail;
if (pa_solaris_set_buffer(fd, buffer_size) < 0)
goto fail;
u = pa_xmalloc(sizeof(struct userdata));
u->core = m->core;
u->fd = fd;
pa_memchunk_reset(&u->memchunk);
/* We use this to get a reasonable chunk size */
u->page_size = PA_PAGE_SIZE;
u->frame_size = pa_frame_size(&ss);
u->buffer_size = buffer_size;
u->written_bytes = 0;
u->read_bytes = 0;
u->module = m;
m->userdata = u;
pa_thread_mq_init(&u->thread_mq, m->core->mainloop);
u->rtpoll = pa_rtpoll_new();
pa_rtpoll_item_new_asyncmsgq(u->rtpoll, PA_RTPOLL_EARLY, u->thread_mq.inq);
pa_rtpoll_set_timer_periodic(u->rtpoll, pa_bytes_to_usec(u->buffer_size / 10, &ss));
u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
pollfd->fd = fd;
pollfd->events = 0;
pollfd->revents = 0;
if (mode != O_WRONLY) {
u->source = pa_source_new(m->core, __FILE__, pa_modargs_get_value(ma, "source_name", DEFAULT_SOURCE_NAME), 0, &ss, &map);
pa_assert(u->source);
u->source->userdata = u;
u->source->parent.process_msg = source_process_msg;
pa_source_set_module(u->source, m);
pa_source_set_description(u->source, t = pa_sprintf_malloc("Solaris PCM on '%s'", p));
pa_xfree(t);
pa_source_set_asyncmsgq(u->source, u->thread_mq.inq);
pa_source_set_rtpoll(u->source, u->rtpoll);
u->source->flags = PA_SOURCE_HARDWARE|PA_SOURCE_LATENCY|PA_SOURCE_HW_VOLUME_CTRL;
u->source->refresh_volume = 1;
} else
u->source = NULL;
if (mode != O_RDONLY) {
u->sink = pa_sink_new(m->core, __FILE__, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &ss, &map);
pa_assert(u->sink);
u->sink->userdata = u;
u->sink->parent.process_msg = sink_process_msg;
pa_sink_set_module(u->sink, m);
pa_sink_set_description(u->sink, t = pa_sprintf_malloc("Solaris PCM on '%s'", p));
pa_xfree(t);
pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
pa_sink_set_rtpoll(u->sink, u->rtpoll);
u->sink->flags = PA_SINK_HARDWARE|PA_SINK_LATENCY|PA_SINK_HW_VOLUME_CTRL;
u->sink->refresh_volume = 1;
u->sink->refresh_mute = 1;
} else
u->sink = NULL;
pa_assert(u->source || u->sink);
u->sig = pa_signal_new(SIGPOLL, sig_callback, u);
pa_assert(u->sig);
ioctl(u->fd, I_SETSIG, S_MSG);
if (!(u->thread = pa_thread_new(thread_func, u))) {
pa_log("Failed to create thread.");
goto fail;
}
/* Read mixer settings */
if (u->source)
pa_asyncmsgq_send(u->thread_mq.inq, PA_MSGOBJECT(u->source), PA_SOURCE_MESSAGE_GET_VOLUME, &u->source->volume, 0, NULL);
if (u->sink) {
pa_asyncmsgq_send(u->thread_mq.inq, PA_MSGOBJECT(u->sink), PA_SINK_MESSAGE_GET_VOLUME, &u->sink->volume, 0, NULL);
pa_asyncmsgq_send(u->thread_mq.inq, PA_MSGOBJECT(u->sink), PA_SINK_MESSAGE_GET_MUTE, &u->sink->muted, 0, NULL);
}
if (u->sink)
pa_sink_put(u->sink);
if (u->source)
pa_source_put(u->source);
pa_modargs_free(ma);
return 0;
fail:
if (u)
pa__done(m);
else if (fd >= 0)
close(fd);
if (ma)
pa_modargs_free(ma);
return -1;
}
int pa__init(pa_module*m) {
struct userdata *u;
pa_modargs *ma;
pa_sink_new_data data;
int backend_state;
int ret;
char strbuf[100];
pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("Failed to parse module arguments.");
goto fail;
}
ss = m->core->default_sample_spec;
map = m->core->default_channel_map;
/* user arguments override these */
if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) {
pa_log("Invalid sample format specification or channel map");
return 1;
}
/* Xen Basic init */
xsh = xs_domain_open();
if (xsh==NULL) {
pa_log("xs_domain_open failed");
goto fail;
}
set_state(XenbusStateUnknown);
xch = xc_interface_open(NULL, NULL, 0);
if (xch==0) {
pa_log("xc_interface_open failed");
goto fail;
}
xce = xc_evtchn_open(NULL, 0);
if (xce==0) {
pa_log("xc_evtchn_open failed");
goto fail;
}
/* use only dom0 as the backend for now */
xen_evtchn_port = xc_evtchn_bind_unbound_port(xce, 0);
if (xen_evtchn_port == 0) {
pa_log("xc_evtchn_bind_unbound_port failed");
}
/* get grant reference & map locally */
if (alloc_gref(&gref, (void**)&ioring)) {
pa_log("alloc_gref failed");
};
device_id = 0; /* hardcoded for now */
if (register_backend_state_watch()) {
pa_log("Xen sink: register xenstore watch failed");
};
publish_param_int("event-channel", xen_evtchn_port);
publish_param_int("ring-ref", gref.gref_ids[0]);
/* let's ask for something absurd and deal with rejection */
ss.rate = 192000;
publish_spec(&ss);
ret=0;
while (!ret) {
backend_state = wait_for_backend_state_change();
if (backend_state == STATE_UNDEFINED) {
pa_log("Xen Backend is taking long to respond, still waiting...");
continue;
} else if (backend_state == -1) {
pa_log("Error while waiting for backend: %s", strerror(errno));
break;
goto fail;
}
ret = state_callbacks[backend_state]();
}
if (ret!=NEGOTIATION_OK) {
pa_log("Negotiation with Xen backend failed!");
return 1;
}
pa_sample_spec_snprint(strbuf, 100, &ss);
pa_log_debug("Negotiation ended, the result was: %s", strbuf);
/* End of Phase 2, begin playback cycle */
u = pa_xnew0(struct userdata, 1);
u->core = m->core;
u->module = m;
m->userdata = u;
pa_memchunk_reset(&u->memchunk);
u->rtpoll = pa_rtpoll_new();
pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll);
u->write_type = 0;
/* init ring buffer */
ioring->prod_indx = ioring->cons_indx = 0;
ioring->usable_buffer_space = BUFSIZE - BUFSIZE % pa_frame_size(&ss);
pa_sink_new_data_init(&data);
data.driver = __FILE__;
data.module = m;
pa_sink_new_data_set_name(&data, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME));
pa_proplist_sets(data.proplist, PA_PROP_DEVICE_STRING, "xensink");
pa_proplist_setf(data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Xen PV audio sink");
pa_sink_new_data_set_sample_spec(&data, &ss);
pa_sink_new_data_set_channel_map(&data, &map);
if (pa_modargs_get_proplist(ma, "sink_properties", data.proplist, PA_UPDATE_REPLACE) < 0) {
pa_log("Invalid properties");
pa_sink_new_data_done(&data);
goto fail;
}
u->sink = pa_sink_new(m->core, &data, PA_SINK_LATENCY);
pa_sink_new_data_done(&data);
if (!u->sink) {
pa_log("Failed to create sink.");
goto fail;
}
u->sink->parent.process_msg = sink_process_msg;
u->sink->userdata = u;
pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
pa_sink_set_rtpoll(u->sink, u->rtpoll);
pa_sink_set_max_request(u->sink, ioring->usable_buffer_space);
pa_sink_set_fixed_latency(u->sink, pa_bytes_to_usec(ioring->usable_buffer_space, &u->sink->sample_spec));
u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
if (!(u->thread = pa_thread_new("xenpv-sink", thread_func, u))) {
pa_log("Failed to create thread.");
goto fail;
}
pa_sink_put(u->sink);
pa_modargs_free(ma);
return 0;
fail:
if (ma)
pa_modargs_free(ma);
pa__done(m);
return -1;
}
int pa__init(pa_module * m)
{
struct userdata *u;
pa_sample_spec ss;
pa_channel_map map;
pa_modargs *ma;
struct pollfd *pollfd;
pa_sink_new_data data_sink;
pa_source_new_data data_source;
pa_assert(m);
pa_log("vchan module loading");
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("Failed to parse module arguments.");
goto fail;
}
ss = m->core->default_sample_spec;
map = m->core->default_channel_map;
if (pa_modargs_get_sample_spec_and_channel_map
(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) {
pa_log
("Invalid sample format specification or channel map");
goto fail;
}
u = pa_xnew0(struct userdata, 1);
u->core = m->core;
u->module = m;
m->userdata = u;
pa_memchunk_reset(&u->memchunk_sink);
pa_memchunk_reset(&u->memchunk_source);
u->rtpoll = pa_rtpoll_new();
pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll);
if ((do_conn(u)) < 0) {
pa_log("get_early_allocated_vchan: %s",
pa_cstrerror(errno));
goto fail;
}
/* SINK preparation */
pa_sink_new_data_init(&data_sink);
data_sink.driver = __FILE__;
data_sink.module = m;
pa_sink_new_data_set_name(&data_sink,
pa_modargs_get_value(ma,
"sink_name",
DEFAULT_SINK_NAME));
pa_proplist_sets(data_sink.proplist,
PA_PROP_DEVICE_STRING, DEFAULT_SINK_NAME);
pa_proplist_setf(data_sink.proplist,
PA_PROP_DEVICE_DESCRIPTION,
"Qubes VCHAN sink");
pa_sink_new_data_set_sample_spec(&data_sink, &ss);
pa_sink_new_data_set_channel_map(&data_sink, &map);
if (pa_modargs_get_proplist
(ma, "sink_properties", data_sink.proplist, PA_UPDATE_REPLACE) < 0) {
pa_log("Invalid properties");
pa_sink_new_data_done(&data_sink);
goto fail;
}
u->sink = pa_sink_new(m->core, &data_sink, PA_SINK_LATENCY);
pa_sink_new_data_done(&data_sink);
if (!u->sink) {
pa_log("Failed to create sink.");
goto fail;
}
u->sink->parent.process_msg = sink_process_msg;
u->sink->userdata = u;
pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
pa_sink_set_rtpoll(u->sink, u->rtpoll);
pa_sink_set_max_request(u->sink, VCHAN_BUF);
pa_sink_set_fixed_latency(u->sink,
pa_bytes_to_usec
(VCHAN_BUF,
&u->sink->sample_spec));
u->play_rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
pollfd = pa_rtpoll_item_get_pollfd(u->play_rtpoll_item, NULL);
pollfd->fd = libvchan_fd_for_select(u->play_ctrl);
pollfd->events = POLLIN;
pollfd->revents = 0;
/* SOURCE preparation */
pa_source_new_data_init(&data_source);
data_source.driver = __FILE__;
data_source.module = m;
pa_source_new_data_set_name(&data_source, pa_modargs_get_value(ma, "source_name", DEFAULT_SOURCE_NAME));
pa_proplist_sets(data_source.proplist, PA_PROP_DEVICE_STRING, DEFAULT_SOURCE_NAME);
pa_proplist_setf(data_source.proplist, PA_PROP_DEVICE_DESCRIPTION, "Qubes VCHAN source");
pa_source_new_data_set_sample_spec(&data_source, &ss);
pa_source_new_data_set_channel_map(&data_source, &map);
if (pa_modargs_get_proplist(ma, "source_properties", data_source.proplist, PA_UPDATE_REPLACE) < 0) {
pa_log("Invalid properties");
pa_source_new_data_done(&data_source);
goto fail;
}
u->source = pa_source_new(m->core, &data_source, PA_SOURCE_LATENCY);
pa_source_new_data_done(&data_source);
if (!u->source) {
pa_log("Failed to create source.");
goto fail;
}
u->source->parent.process_msg = source_process_msg;
u->source->userdata = u;
pa_source_set_asyncmsgq(u->source, u->thread_mq.inq);
pa_source_set_rtpoll(u->source, u->rtpoll);
pa_source_set_fixed_latency(u->source, pa_bytes_to_usec(PIPE_BUF, &u->source->sample_spec));
u->rec_rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
pollfd = pa_rtpoll_item_get_pollfd(u->rec_rtpoll_item, NULL);
pollfd->fd = libvchan_fd_for_select(u->rec_ctrl);
pollfd->events = POLLIN;
pollfd->revents = 0;
#if PA_CHECK_VERSION(0,9,22)
if (!(u->thread = pa_thread_new("vchan-sink", thread_func, u))) {
#else
if (!(u->thread = pa_thread_new(thread_func, u))) {
#endif
pa_log("Failed to create thread.");
goto fail;
}
pa_sink_put(u->sink);
pa_source_put(u->source);
pa_modargs_free(ma);
return 0;
fail:
if (ma)
pa_modargs_free(ma);
pa__done(m);
return -1;
}
int pa__get_n_used(pa_module * m)
{
struct userdata *u;
pa_assert(m);
pa_assert_se(u = m->userdata);
return pa_sink_linked_by(u->sink);
}
void pa__done(pa_module * m)
{
struct userdata *u;
pa_assert(m);
if (!(u = m->userdata))
return;
if (u->sink)
pa_sink_unlink(u->sink);
if (u->source)
pa_source_unlink(u->source);
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->source)
pa_source_unref(u->source);
if (u->memchunk_sink.memblock)
pa_memblock_unref(u->memchunk_sink.memblock);
if (u->memchunk_source.memblock)
pa_memblock_unref(u->memchunk_source.memblock);
if (u->play_rtpoll_item)
pa_rtpoll_item_free(u->play_rtpoll_item);
if (u->rec_rtpoll_item)
pa_rtpoll_item_free(u->rec_rtpoll_item);
if (u->rtpoll)
pa_rtpoll_free(u->rtpoll);
if (u->play_ctrl)
libvchan_close(u->play_ctrl);
if (u->rec_ctrl)
libvchan_close(u->rec_ctrl);
pa_xfree(u);
}