static void thread_func(void *userdata) {
struct userdata *u = userdata;
pa_assert(u);
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;
if (PA_SINK_IS_OPENED(u->sink->thread_info.state))
if (u->sink->thread_info.rewind_requested)
pa_sink_process_rewind(u->sink, 0);
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");
}
static void thread_func(void *userdata) {
struct userdata *u = userdata;
int ret;
pa_usec_t now;
pa_assert(u);
pa_log_debug("Thread starting up");
pa_thread_mq_install(&u->thread_mq);
u->timestamp = pa_rtclock_now();
for (;;) {
if (u->sink->thread_info.state == PA_SINK_RUNNING) {
now = pa_rtclock_now();
if (u->sink->thread_info.rewind_requested) {
if (u->sink->thread_info.rewind_nbytes > 0) {
process_rewind(u, now);
} else {
pa_sink_process_rewind(u->sink, 0);
}
}
if (u->timestamp <= now) {
pa_log_debug("thread_func: calling process_render");
process_render(u, now);
}
pa_rtpoll_set_timer_absolute(u->rtpoll, u->timestamp);
} else {
pa_rtpoll_set_timer_disabled(u->rtpoll);
}
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");
}
static void thread_func(void *userdata) {
struct userdata *u = userdata;
pa_assert(u);
pa_log_debug("Thread starting up");
pa_thread_mq_install(&u->thread_mq);
for(;;){
struct pollfd *pollfd;
int ret;
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
/* Render some data and write it to the fifo */
if (PA_SINK_IS_OPENED(u->sink->thread_info.state)) {
if (u->sink->thread_info.rewind_requested)
pa_sink_process_rewind(u->sink, 0);
if (pollfd->revents) {
if (process_render(u) < 0)
goto fail;
pollfd->revents = 0;
}
}
/* Hmm, nothing to do. Let's sleep */
pollfd->events = (short) (u->sink->thread_info.state == PA_SINK_RUNNING ? POLLOUT : 0);
if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0)
goto fail;
if (ret == 0)
goto finish;
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
if (pollfd->revents & ~POLLOUT) {
pa_log("FIFO shutdown.");
goto fail;
}
}
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);
pa_log_debug("Shutting down Xen...");
xen_cleanup();
finish:
pa_log_debug("Thread shutting down");
}
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");
}
static void thread_func(void *userdata) {
struct userdata *u = userdata;
pa_assert(u);
pa_log_debug("Thread starting up");
pa_thread_mq_install(&u->thread_mq);
u->timestamp = pa_rtclock_now();
for (;;) {
int ret;
/* Generate some null data */
if (PA_SOURCE_IS_OPENED(u->source->thread_info.state)) {
pa_usec_t now;
pa_memchunk chunk;
now = pa_rtclock_now();
if ((chunk.length = pa_usec_to_bytes(now - u->timestamp, &u->source->sample_spec)) > 0) {
chunk.memblock = pa_memblock_new(u->core->mempool, (size_t) -1); /* or chunk.length? */
chunk.index = 0;
pa_source_post(u->source, &chunk);
pa_memblock_unref(chunk.memblock);
u->timestamp = now;
}
pa_rtpoll_set_timer_absolute(u->rtpoll, u->timestamp + u->latency_time * PA_USEC_PER_MSEC);
} 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");
}
static void thread_func(void *userdata) {
struct userdata *u = userdata;
pa_assert(u);
pa_log_debug("Thread starting up");
pa_thread_mq_install(&u->thread_mq);
u->timestamp = pa_rtclock_now();
for (;;) {
pa_usec_t now = 0;
int ret;
if (PA_SINK_IS_OPENED(u->sink->thread_info.state))
now = pa_rtclock_now();
if (PA_UNLIKELY(u->sink->thread_info.rewind_requested))
process_rewind(u, now);
/* Render some data and drop it immediately */
if (PA_SINK_IS_OPENED(u->sink->thread_info.state)) {
if (u->timestamp <= now)
process_render(u, now);
pa_rtpoll_set_timer_absolute(u->rtpoll, u->timestamp);
} else
pa_rtpoll_set_timer_disabled(u->rtpoll);
/* Hmm, nothing to do. Let's sleep */
if ((ret = pa_rtpoll_run(u->rtpoll)) < 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");
}
static void thread_func(void *userdata) {
struct userdata *u = userdata;
pa_assert(u);
pa_log_debug("Thread starting up");
pa_thread_mq_install(&u->thread_mq);
pa_rtpoll_install(u->rtpoll);
pa_rtclock_get(&u->timestamp);
for (;;) {
int ret;
/* Render some data and drop it immediately */
if (u->sink->thread_info.state == PA_SINK_RUNNING) {
struct timeval now;
pa_rtclock_get(&now);
if (pa_timeval_cmp(&u->timestamp, &now) <= 0) {
pa_sink_skip(u->sink, u->block_size);
pa_timeval_add(&u->timestamp, pa_bytes_to_usec(u->block_size, &u->sink->sample_spec));
}
pa_rtpoll_set_timer_absolute(u->rtpoll, &u->timestamp);
} else
pa_rtpoll_set_timer_disabled(u->rtpoll);
/* Hmm, nothing to do. Let's sleep */
if ((ret = pa_rtpoll_run(u->rtpoll, 1)) < 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");
}
static void thread_func (void *userdata)
{
struct userdata *u = userdata;
pa_assert(u);
pa_thread_mq_install(&u->thread_mq);
u->timestamp = pa_rtclock_now();
for(;;) {
int ret;
if (PA_SINK_IS_OPENED(u->sink->thread_info.state)) {
pa_usec_t now;
now = pa_rtclock_now();
if (u->sink->thread_info.rewind_requested) {
pa_log ("rewind requested......");
}
if (u->timestamp <= now) ;
//process_render(u, now);
pa_rtpoll_set_timer_absolute(u->rtpoll, u->timestamp);
} else
pa_rtpoll_set_timer_disabled(u->rtpoll);
ret = pa_rtpoll_run(u->rtpoll, TRUE);
if (ret < 0)
goto fail;
if (ret == 0)
goto finish;
}
fail:
/* something went wrong. Tell core to unload module */
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");
}
static void thread_func(void *userdata) {
struct userdata *u = userdata;
pa_assert(u);
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);
u->timestamp = pa_rtclock_now();
for (;;) {
int ret;
if (PA_SOURCE_IS_OPENED(u->source->thread_info.state)) {
thread_read(u);
pa_rtpoll_set_timer_absolute(u->rtpoll, u->timestamp);
} else
pa_rtpoll_set_timer_disabled(u->rtpoll);
/* Sleep */
if ((ret = pa_rtpoll_run(u->rtpoll)) < 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.");
}
static void thread_func(void *userdata) {
struct userdata *u = userdata;
pa_proplist *proplist;
pa_assert(u);
pa_log_debug("Thread starting up");
pa_thread_mq_install(u->thread_mq);
proplist = tunnel_new_proplist(u);
u->context = pa_context_new_with_proplist(u->thread_mainloop_api,
"PulseAudio",
proplist);
pa_proplist_free(proplist);
if (!u->context) {
pa_log("Failed to create libpulse context");
goto fail;
}
if (u->cookie_file && pa_context_load_cookie_from_file(u->context, u->cookie_file) != 0) {
pa_log_error("Can not load cookie file!");
goto fail;
}
pa_context_set_state_callback(u->context, context_state_cb, u);
if (pa_context_connect(u->context,
u->remote_server,
PA_CONTEXT_NOAUTOSPAWN,
NULL) < 0) {
pa_log("Failed to connect libpulse context");
goto fail;
}
for (;;) {
int ret;
if (pa_mainloop_iterate(u->thread_mainloop, 1, &ret) < 0) {
if (ret == 0)
goto finish;
else
goto fail;
}
if (PA_UNLIKELY(u->sink->thread_info.rewind_requested))
pa_sink_process_rewind(u->sink, 0);
if (u->connected &&
pa_stream_get_state(u->stream) == PA_STREAM_READY &&
PA_SINK_IS_LINKED(u->sink->thread_info.state)) {
size_t writable;
writable = pa_stream_writable_size(u->stream);
if (writable > 0) {
if(u->transcode.encoding != -1) {
pa_memchunk memchunk;
const void *p;
size_t nbBytes;
unsigned char *cbits;
pa_sink_render_full(u->sink, u->transcode.frame_size*u->transcode.channels*u->transcode.sample_size, &memchunk);
pa_assert(memchunk.length > 0);
pa_assert(memchunk.length >= u->transcode.frame_size*u->transcode.channels);
pa_log_debug("received memchunk length: %zu bytes", memchunk.length );
/* we have new data to write */
p = pa_memblock_acquire(memchunk.memblock);
nbBytes = pa_transcode_encode(&u->transcode, (uint8_t*) p + memchunk.index, &cbits);
pa_log_debug("encoded length: %zu bytes", nbBytes);
/* TODO: Use pa_stream_begin_write() to reduce copying. */
ret = pa_stream_write_compressed(u->stream,
(uint8_t*) cbits,
nbBytes,
NULL, /**< A cleanup routine for the data or NULL to request an internal copy */
0, /** offset */
PA_SEEK_RELATIVE, u->transcode.frame_size*u->transcode.channels*u->transcode.sample_size);
pa_memblock_release(memchunk.memblock);
pa_memblock_unref(memchunk.memblock);
if(nbBytes > 0) free(cbits);
if (ret != 0) {
pa_log_error("Could not write data into the stream ... ret = %i", ret);
u->thread_mainloop_api->quit(u->thread_mainloop_api, TUNNEL_THREAD_FAILED_MAINLOOP);
}
}
else {
pa_memchunk memchunk;
const void *p;
pa_sink_render_full(u->sink, writable, &memchunk);
pa_assert(memchunk.length > 0);
/* we have new data to write */
p = pa_memblock_acquire(memchunk.memblock);
/* TODO: Use pa_stream_begin_write() to reduce copying. */
ret = pa_stream_write(u->stream,
(uint8_t*) p + memchunk.index,
memchunk.length,
NULL, /**< A cleanup routine for the data or NULL to request an internal copy */
0, /** offset */
PA_SEEK_RELATIVE);
pa_memblock_release(memchunk.memblock);
pa_memblock_unref(memchunk.memblock);
if (ret != 0) {
pa_log_error("Could not write data into the stream ... ret = %i", ret);
u->thread_mainloop_api->quit(u->thread_mainloop_api, TUNNEL_THREAD_FAILED_MAINLOOP);
}
}
}
}
}
fail:
pa_asyncmsgq_post(u->thread_mq->outq, PA_MSGOBJECT(u->module->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL, NULL);
pa_asyncmsgq_wait_for(u->thread_mq->inq, PA_MESSAGE_SHUTDOWN);
finish:
if (u->stream) {
pa_stream_disconnect(u->stream);
pa_stream_unref(u->stream);
u->stream = NULL;
}
if (u->context) {
pa_context_disconnect(u->context);
pa_context_unref(u->context);
u->context = NULL;
}
pa_log_debug("Thread shutting down");
}
static void thread_func(void *userdata) {
struct userdata *u = userdata;
bool timer_elapsed = false;
size_t max_block_size;
pa_assert(u);
pa_log_debug("Thread starting up");
if (u->core->realtime_scheduling)
pa_thread_make_realtime(u->core->realtime_priority);
pa_thread_mq_install(&u->thread_mq);
max_block_size = pa_frame_align(pa_mempool_block_size_max(u->core->mempool), &u->source->sample_spec);
u->timestamp = pa_rtclock_now();
for (;;) {
int ret;
/* Generate some null data */
if (PA_SOURCE_IS_OPENED(u->source->thread_info.state)) {
pa_usec_t now;
pa_memchunk chunk;
now = pa_rtclock_now();
if (timer_elapsed && (chunk.length = pa_usec_to_bytes(now - u->timestamp, &u->source->sample_spec)) > 0) {
chunk.length = PA_MIN(max_block_size, chunk.length);
chunk.memblock = pa_memblock_new(u->core->mempool, chunk.length);
chunk.index = 0;
pa_silence_memchunk(&chunk, &u->source->sample_spec);
pa_source_post(u->source, &chunk);
pa_memblock_unref(chunk.memblock);
u->timestamp += pa_bytes_to_usec(chunk.length, &u->source->sample_spec);
}
pa_rtpoll_set_timer_absolute(u->rtpoll, u->timestamp + u->block_usec);
} else
pa_rtpoll_set_timer_disabled(u->rtpoll);
/* Hmm, nothing to do. Let's sleep */
if ((ret = pa_rtpoll_run(u->rtpoll)) < 0)
goto fail;
timer_elapsed = pa_rtpoll_timer_elapsed(u->rtpoll);
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");
}
static void thread_func(void *userdata) {
struct userdata *u = userdata;
int write_type = 0, read_type = 0;
short revents = 0;
pa_assert(u);
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_log("loop"); */
if (PA_UNLIKELY(u->sink && u->sink->thread_info.rewind_requested))
pa_sink_process_rewind(u->sink, 0);
/* Render some data and write it to the dsp */
if (u->sink && PA_SINK_IS_OPENED(u->sink->thread_info.state) && ((revents & POLLOUT) || u->use_mmap || u->use_getospace)) {
if (u->use_mmap) {
if ((ret = mmap_write(u)) < 0)
goto fail;
revents &= ~POLLOUT;
if (ret > 0)
continue;
} else {
ssize_t l;
pa_bool_t loop = FALSE, work_done = FALSE;
l = (ssize_t) u->out_fragment_size;
if (u->use_getospace) {
audio_buf_info info;
if (ioctl(u->fd, SNDCTL_DSP_GETOSPACE, &info) < 0) {
pa_log_info("Device doesn't support SNDCTL_DSP_GETOSPACE: %s", pa_cstrerror(errno));
u->use_getospace = FALSE;
} else {
l = info.bytes;
/* We loop only if GETOSPACE worked and we
* actually *know* that we can write more than
* one fragment at a time */
loop = TRUE;
}
}
/* Round down to multiples of the fragment size,
* because OSS needs that (at least some versions
* do) */
l = (l/(ssize_t) u->out_fragment_size) * (ssize_t) u->out_fragment_size;
/* Hmm, so poll() signalled us that we can read
* something, but GETOSPACE told us there was nothing?
* Hmm, make the best of it, try to read some data, to
* avoid spinning forever. */
if (l <= 0 && (revents & POLLOUT)) {
l = (ssize_t) u->out_fragment_size;
loop = FALSE;
}
while (l > 0) {
void *p;
ssize_t t;
if (u->memchunk.length <= 0)
pa_sink_render(u->sink, (size_t) l, &u->memchunk);
pa_assert(u->memchunk.length > 0);
p = pa_memblock_acquire(u->memchunk.memblock);
t = pa_write(u->fd, (uint8_t*) p + u->memchunk.index, u->memchunk.length, &write_type);
pa_memblock_release(u->memchunk.memblock);
/* pa_log("wrote %i bytes of %u", t, l); */
pa_assert(t != 0);
if (t < 0) {
if (errno == EINTR)
continue;
else if (errno == EAGAIN) {
pa_log_debug("EAGAIN");
revents &= ~POLLOUT;
break;
} else {
pa_log("Failed to write data to DSP: %s", pa_cstrerror(errno));
goto fail;
}
} else {
u->memchunk.index += (size_t) t;
u->memchunk.length -= (size_t) t;
if (u->memchunk.length <= 0) {
pa_memblock_unref(u->memchunk.memblock);
pa_memchunk_reset(&u->memchunk);
}
l -= t;
revents &= ~POLLOUT;
work_done = TRUE;
}
if (!loop)
break;
}
if (work_done)
continue;
}
}
/* Try to read some data and pass it on to the source driver. */
if (u->source && PA_SOURCE_IS_OPENED(u->source->thread_info.state) && ((revents & POLLIN) || u->use_mmap || u->use_getispace)) {
if (u->use_mmap) {
if ((ret = mmap_read(u)) < 0)
goto fail;
revents &= ~POLLIN;
if (ret > 0)
continue;
} else {
void *p;
ssize_t l;
pa_memchunk memchunk;
pa_bool_t loop = FALSE, work_done = FALSE;
l = (ssize_t) u->in_fragment_size;
if (u->use_getispace) {
audio_buf_info info;
if (ioctl(u->fd, SNDCTL_DSP_GETISPACE, &info) < 0) {
pa_log_info("Device doesn't support SNDCTL_DSP_GETISPACE: %s", pa_cstrerror(errno));
u->use_getispace = FALSE;
} else {
l = info.bytes;
loop = TRUE;
}
}
l = (l/(ssize_t) u->in_fragment_size) * (ssize_t) u->in_fragment_size;
if (l <= 0 && (revents & POLLIN)) {
l = (ssize_t) u->in_fragment_size;
loop = FALSE;
}
while (l > 0) {
ssize_t t;
size_t k;
pa_assert(l > 0);
memchunk.memblock = pa_memblock_new(u->core->mempool, (size_t) -1);
k = pa_memblock_get_length(memchunk.memblock);
if (k > (size_t) l)
k = (size_t) l;
k = (k/u->frame_size)*u->frame_size;
p = pa_memblock_acquire(memchunk.memblock);
t = pa_read(u->fd, p, k, &read_type);
pa_memblock_release(memchunk.memblock);
pa_assert(t != 0); /* EOF cannot happen */
/* pa_log("read %i bytes of %u", t, l); */
if (t < 0) {
pa_memblock_unref(memchunk.memblock);
if (errno == EINTR)
continue;
else if (errno == EAGAIN) {
pa_log_debug("EAGAIN");
revents &= ~POLLIN;
break;
} else {
pa_log("Failed to read data from DSP: %s", pa_cstrerror(errno));
goto fail;
}
} else {
memchunk.index = 0;
memchunk.length = (size_t) t;
pa_source_post(u->source, &memchunk);
pa_memblock_unref(memchunk.memblock);
l -= t;
revents &= ~POLLIN;
work_done = TRUE;
}
if (!loop)
break;
}
if (work_done)
continue;
}
}
/* pa_log("loop2 revents=%i", revents); */
if (u->rtpoll_item) {
struct pollfd *pollfd;
pa_assert(u->fd >= 0);
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
pollfd->events = (short)
(((u->source && PA_SOURCE_IS_OPENED(u->source->thread_info.state)) ? POLLIN : 0) |
((u->sink && PA_SINK_IS_OPENED(u->sink->thread_info.state)) ? POLLOUT : 0));
}
/* Hmm, nothing to do. Let's sleep */
if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0)
goto fail;
if (ret == 0)
goto finish;
if (u->rtpoll_item) {
struct pollfd *pollfd;
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
if (pollfd->revents & ~(POLLOUT|POLLIN)) {
pa_log("DSP shutdown.");
goto fail;
}
revents = pollfd->revents;
} else
revents = 0;
}
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");
}
static void thread_func(void *userdata) {
struct userdata *u = userdata;
unsigned short revents = 0;
int ret;
pa_assert(u);
pa_log_debug("Thread starting up");
if (u->core->high_priority)
pa_make_realtime();
pa_thread_mq_install(&u->thread_mq);
pa_rtpoll_install(u->rtpoll);
for (;;) {
/* Render some data and write it to the dsp */
if (u->sink && PA_SINK_OPENED(u->sink->thread_info.state)) {
audio_info_t info;
int err;
size_t len;
err = ioctl(u->fd, AUDIO_GETINFO, &info);
pa_assert(err >= 0);
/*
* Since we cannot modify the size of the output buffer we fake it
* by not filling it more than u->buffer_size.
*/
len = u->buffer_size;
len -= u->written_bytes - (info.play.samples * u->frame_size);
/* The sample counter can sometimes go backwards :( */
if (len > u->buffer_size)
len = 0;
if (info.play.error) {
pa_log_debug("Solaris buffer underflow!");
clear_underflow(u);
}
len -= len % u->frame_size;
while (len) {
void *p;
ssize_t r;
if (!u->memchunk.length)
pa_sink_render(u->sink, len, &u->memchunk);
pa_assert(u->memchunk.length);
p = pa_memblock_acquire(u->memchunk.memblock);
r = pa_write(u->fd, (uint8_t*) p + u->memchunk.index, u->memchunk.length, NULL);
pa_memblock_release(u->memchunk.memblock);
if (r < 0) {
if (errno == EINTR)
continue;
else if (errno != EAGAIN) {
pa_log("Failed to read data from DSP: %s", pa_cstrerror(errno));
goto fail;
}
} else {
pa_assert(r % u->frame_size == 0);
u->memchunk.index += r;
u->memchunk.length -= r;
if (u->memchunk.length <= 0) {
pa_memblock_unref(u->memchunk.memblock);
pa_memchunk_reset(&u->memchunk);
}
len -= r;
u->written_bytes += r;
}
}
}
/* Try to read some data and pass it on to the source driver */
if (u->source && PA_SOURCE_OPENED(u->source->thread_info.state) && ((revents & POLLIN))) {
pa_memchunk memchunk;
int err;
size_t l;
void *p;
ssize_t r;
audio_info_t info;
err = ioctl(u->fd, AUDIO_GETINFO, &info);
pa_assert(err >= 0);
if (info.record.error) {
pa_log_debug("Solaris buffer overflow!");
clear_overflow(u);
}
err = ioctl(u->fd, I_NREAD, &l);
pa_assert(err >= 0);
if (l > 0) {
/* This is to make sure it fits in the memory pool. Also, a page
should be the most efficient transfer size. */
if (l > u->page_size)
l = u->page_size;
memchunk.memblock = pa_memblock_new(u->core->mempool, l);
pa_assert(memchunk.memblock);
p = pa_memblock_acquire(memchunk.memblock);
r = pa_read(u->fd, p, l, NULL);
pa_memblock_release(memchunk.memblock);
if (r < 0) {
pa_memblock_unref(memchunk.memblock);
if (errno != EAGAIN) {
pa_log("Failed to read data from DSP: %s", pa_cstrerror(errno));
goto fail;
}
} else {
memchunk.index = 0;
memchunk.length = r;
pa_source_post(u->source, &memchunk);
pa_memblock_unref(memchunk.memblock);
u->read_bytes += r;
revents &= ~POLLIN;
}
}
}
if (u->fd >= 0) {
struct pollfd *pollfd;
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
pollfd->events =
((u->source && PA_SOURCE_OPENED(u->source->thread_info.state)) ? POLLIN : 0);
}
/* Hmm, nothing to do. Let's sleep */
if ((ret = pa_rtpoll_run(u->rtpoll, 1)) < 0)
goto fail;
if (ret == 0)
goto finish;
if (u->fd >= 0) {
struct pollfd *pollfd;
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
if (pollfd->revents & ~(POLLOUT|POLLIN)) {
pa_log("DSP shutdown.");
goto fail;
}
revents = pollfd->revents;
} else
revents = 0;
}
fail:
/* We have to continue processing messages until we receive the
* SHUTDOWN message */
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");
}
static void thread_func(void *userdata) {
struct userdata *u = userdata;
unsigned short revents = 0;
int ret, err;
audio_info_t info;
pa_assert(u);
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);
pa_smoother_set_time_offset(u->smoother, pa_rtclock_now());
for (;;) {
/* Render some data and write it to the dsp */
if (PA_UNLIKELY(u->sink->thread_info.rewind_requested))
process_rewind(u);
if (u->sink && PA_SINK_IS_OPENED(u->sink->thread_info.state)) {
pa_usec_t xtime0, ysleep_interval, xsleep_interval;
uint64_t buffered_bytes;
err = ioctl(u->fd, AUDIO_GETINFO, &info);
if (err < 0) {
pa_log("AUDIO_GETINFO ioctl failed: %s", pa_cstrerror(errno));
goto fail;
}
if (info.play.error) {
pa_log_debug("buffer under-run!");
AUDIO_INITINFO(&info);
info.play.error = 0;
if (ioctl(u->fd, AUDIO_SETINFO, &info) < 0)
pa_log("AUDIO_SETINFO: %s", pa_cstrerror(errno));
pa_smoother_reset(u->smoother, pa_rtclock_now(), true);
}
for (;;) {
void *p;
ssize_t w;
size_t len;
int write_type = 1;
/*
* Since we cannot modify the size of the output buffer we fake it
* by not filling it more than u->buffer_size.
*/
xtime0 = pa_rtclock_now();
buffered_bytes = get_playback_buffered_bytes(u);
if (buffered_bytes >= (uint64_t)u->buffer_size)
break;
len = u->buffer_size - buffered_bytes;
len -= len % u->frame_size;
if (len < (size_t) u->minimum_request)
break;
if (!u->memchunk.length)
pa_sink_render(u->sink, u->sink->thread_info.max_request, &u->memchunk);
len = PA_MIN(u->memchunk.length, len);
p = pa_memblock_acquire(u->memchunk.memblock);
w = pa_write(u->fd, (uint8_t*) p + u->memchunk.index, len, &write_type);
pa_memblock_release(u->memchunk.memblock);
if (w <= 0) {
if (errno == EINTR) {
continue;
} else if (errno == EAGAIN) {
/* We may have realtime priority so yield the CPU to ensure that fd can become writable again. */
pa_log_debug("EAGAIN with %llu bytes buffered.", buffered_bytes);
break;
} else {
pa_log("Failed to write data to DSP: %s", pa_cstrerror(errno));
goto fail;
}
} else {
pa_assert(w % u->frame_size == 0);
u->written_bytes += w;
u->memchunk.index += w;
u->memchunk.length -= w;
if (u->memchunk.length <= 0) {
pa_memblock_unref(u->memchunk.memblock);
pa_memchunk_reset(&u->memchunk);
}
}
}
ysleep_interval = pa_bytes_to_usec(buffered_bytes / 2, &u->sink->sample_spec);
xsleep_interval = pa_smoother_translate(u->smoother, xtime0, ysleep_interval);
pa_rtpoll_set_timer_absolute(u->rtpoll, xtime0 + PA_MIN(xsleep_interval, ysleep_interval));
} else
pa_rtpoll_set_timer_disabled(u->rtpoll);
/* Try to read some data and pass it on to the source driver */
if (u->source && PA_SOURCE_IS_OPENED(u->source->thread_info.state) && (revents & POLLIN)) {
pa_memchunk memchunk;
void *p;
ssize_t r;
size_t len;
err = ioctl(u->fd, AUDIO_GETINFO, &info);
pa_assert(err >= 0);
if (info.record.error) {
pa_log_debug("buffer overflow!");
AUDIO_INITINFO(&info);
info.record.error = 0;
if (ioctl(u->fd, AUDIO_SETINFO, &info) < 0)
pa_log("AUDIO_SETINFO: %s", pa_cstrerror(errno));
}
err = ioctl(u->fd, I_NREAD, &len);
pa_assert(err >= 0);
if (len > 0) {
memchunk.memblock = pa_memblock_new(u->core->mempool, len);
pa_assert(memchunk.memblock);
p = pa_memblock_acquire(memchunk.memblock);
r = pa_read(u->fd, p, len, NULL);
pa_memblock_release(memchunk.memblock);
if (r < 0) {
pa_memblock_unref(memchunk.memblock);
if (errno == EAGAIN)
break;
else {
pa_log("Failed to read data from DSP: %s", pa_cstrerror(errno));
goto fail;
}
} else {
u->read_bytes += r;
memchunk.index = 0;
memchunk.length = r;
pa_source_post(u->source, &memchunk);
pa_memblock_unref(memchunk.memblock);
revents &= ~POLLIN;
}
}
}
if (u->rtpoll_item) {
struct pollfd *pollfd;
pa_assert(u->fd >= 0);
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
pollfd->events = (u->source && PA_SOURCE_IS_OPENED(u->source->thread_info.state)) ? POLLIN : 0;
}
/* Hmm, nothing to do. Let's sleep */
if ((ret = pa_rtpoll_run(u->rtpoll, true)) < 0)
goto fail;
if (ret == 0)
goto finish;
if (u->rtpoll_item) {
struct pollfd *pollfd;
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
if (pollfd->revents & ~(POLLOUT|POLLIN)) {
pa_log("DSP shutdown.");
goto fail;
}
revents = pollfd->revents;
} else
revents = 0;
}
fail:
/* We have to continue processing messages until we receive the
* SHUTDOWN message */
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");
}
static void thread_func(void *userdata) {
struct userdata *u = userdata;
int write_type = 0;
pa_assert(u);
pa_log_debug("Thread starting up");
pa_thread_mq_install(&u->thread_mq);
pa_smoother_set_time_offset(u->smoother, pa_rtclock_now());
for (;;) {
int ret;
if (PA_SINK_IS_OPENED(u->sink->thread_info.state))
if (u->sink->thread_info.rewind_requested)
pa_sink_process_rewind(u->sink, 0);
if (u->rtpoll_item) {
struct pollfd *pollfd;
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
/* Render some data and write it to the fifo */
if (PA_SINK_IS_OPENED(u->sink->thread_info.state) && pollfd->revents) {
pa_usec_t usec;
int64_t n;
for (;;) {
ssize_t l;
void *p;
if (u->memchunk.length <= 0)
pa_sink_render(u->sink, u->block_size, &u->memchunk);
pa_assert(u->memchunk.length > 0);
p = pa_memblock_acquire(u->memchunk.memblock);
l = pa_write(u->fd, (uint8_t*) p + u->memchunk.index, u->memchunk.length, &write_type);
pa_memblock_release(u->memchunk.memblock);
pa_assert(l != 0);
if (l < 0) {
if (errno == EINTR)
continue;
else if (errno == EAGAIN) {
/* OK, we filled all socket buffers up
* now. */
goto filled_up;
} else {
pa_log("Failed to write data to FIFO: %s", pa_cstrerror(errno));
goto fail;
}
} else {
u->offset += l;
u->memchunk.index += (size_t) l;
u->memchunk.length -= (size_t) l;
if (u->memchunk.length <= 0) {
pa_memblock_unref(u->memchunk.memblock);
pa_memchunk_reset(&u->memchunk);
}
pollfd->revents = 0;
if (u->memchunk.length > 0)
/* OK, we wrote less that we asked for,
* hence we can assume that the socket
* buffers are full now */
goto filled_up;
}
}
filled_up:
/* At this spot we know that the socket buffers are
* fully filled up. This is the best time to estimate
* the playback position of the server */
n = u->offset;
#ifdef SIOCOUTQ
{
int l;
if (ioctl(u->fd, SIOCOUTQ, &l) >= 0 && l > 0)
n -= l;
}
#endif
usec = pa_bytes_to_usec((uint64_t) n, &u->sink->sample_spec);
if (usec > u->latency)
usec -= u->latency;
else
usec = 0;
pa_smoother_put(u->smoother, pa_rtclock_now(), usec);
}
/* Hmm, nothing to do. Let's sleep */
pollfd->events = (short) (PA_SINK_IS_OPENED(u->sink->thread_info.state) ? POLLOUT : 0);
}
if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0)
goto fail;
if (ret == 0)
goto finish;
if (u->rtpoll_item) {
struct pollfd* pollfd;
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
if (pollfd->revents & ~POLLOUT) {
pa_log("FIFO shutdown.");
goto fail;
}
}
}
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");
}
static void thread_func(void *userdata)
{
struct userdata *u = userdata;
char buf[2048]; // max ring buffer size
pa_assert(u);
pa_log_debug("Thread starting up");
pa_thread_mq_install(&u->thread_mq);
for (;;) {
struct pollfd *play_pollfd;
struct pollfd *rec_pollfd;
int ret;
play_pollfd = pa_rtpoll_item_get_pollfd(u->play_rtpoll_item, NULL);
rec_pollfd = pa_rtpoll_item_get_pollfd(u->rec_rtpoll_item, NULL);
if (play_pollfd->revents & POLLIN) {
if (libvchan_wait(u->play_ctrl) < 0)
goto fail;
play_pollfd->revents = 0;
}
if (rec_pollfd->revents & POLLIN) {
if (libvchan_wait(u->rec_ctrl) < 0)
goto fail;
rec_pollfd->revents = 0;
}
/* Render some data and write it to the fifo */
if (PA_SINK_IS_OPENED(u->sink->thread_info.state)) {
if (u->sink->thread_info.rewind_requested)
pa_sink_process_rewind(u->sink, 0);
if (libvchan_buffer_space(u->play_ctrl)) {
if (process_sink_render(u) < 0)
goto fail;
}
}
if (u->source->thread_info.state == PA_SOURCE_RUNNING) {
while (libvchan_data_ready(u->rec_ctrl)) {
if (process_source_data(u) < 0)
goto fail;
}
} else {
/* discard the data */
if (libvchan_data_ready(u->rec_ctrl))
if (libvchan_read(u->rec_ctrl, buf, sizeof(buf)) < 0)
goto fail;
}
/* Hmm, nothing to do. Let's sleep */
play_pollfd->events = POLLIN;
rec_pollfd->events = POLLIN;
#if PA_CHECK_VERSION(6,0,0)
if ((ret = pa_rtpoll_run(u->rtpoll)) < 0)
#else
if ((ret = pa_rtpoll_run(u->rtpoll, true)) < 0)
#endif
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");
}
static void thread_loop(void *arg)
{
struct example_sink_userdata *u = arg;
pa_assert(u);
pa_thread_mq_install(&u->thread_mq);
const pa_usec_t poll_interval = 10000;
pa_usec_t start_time = 0;
pa_usec_t next_time = 0;
for (;;) {
/* process rewind */
if (u->sink->thread_info.rewind_requested) {
process_rewind(u);
}
/* process sink inputs */
if (PA_SINK_IS_OPENED(u->sink->thread_info.state)) {
pa_usec_t now_time = pa_rtclock_now();
if (start_time == 0) {
start_time = now_time;
next_time = start_time + poll_interval;
}
else {
while (now_time >= next_time) {
uint64_t expected_bytes =
pa_usec_to_bytes(next_time - start_time, &u->sink->sample_spec);
/* render samples from sink inputs and write them to output file */
process_samples(u, expected_bytes);
/* next tick */
next_time += poll_interval;
}
}
/* schedule set next rendering tick */
pa_rtpoll_set_timer_absolute(u->rtpoll, next_time);
}
else {
/* sleep until state change */
start_time = 0;
next_time = 0;
pa_rtpoll_set_timer_disabled(u->rtpoll);
}
/* process events and wait next rendering tick */
#if PA_CHECK_VERSION(5, 99, 0)
int ret = pa_rtpoll_run(u->rtpoll);
#else
int ret = pa_rtpoll_run(u->rtpoll, true);
#endif
if (ret < 0) {
pa_log("[example sink] pa_rtpoll_run returned error");
goto error;
}
if (ret == 0) {
break;
}
}
return;
error:
process_error(u);
}
static void thread_func(void *userdata) {
struct userdata *u = userdata;
int write_type = 0;
pa_memchunk silence;
uint32_t silence_overhead = 0;
double silence_ratio = 0;
pa_assert(u);
pa_log_debug("Thread starting up");
pa_thread_mq_install(&u->thread_mq);
pa_smoother_set_time_offset(u->smoother, pa_rtclock_now());
/* Create a chunk of memory that is our encoded silence sample. */
pa_memchunk_reset(&silence);
for (;;) {
int ret;
if (PA_UNLIKELY(u->sink->thread_info.rewind_requested))
pa_sink_process_rewind(u->sink, 0);
if (u->rtpoll_item) {
struct pollfd *pollfd;
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
/* Render some data and write it to the fifo */
if (/*PA_SINK_IS_OPENED(u->sink->thread_info.state) && */pollfd->revents) {
pa_usec_t usec;
int64_t n;
void *p;
if (!silence.memblock) {
pa_memchunk silence_tmp;
pa_memchunk_reset(&silence_tmp);
silence_tmp.memblock = pa_memblock_new(u->core->mempool, 4096);
silence_tmp.length = 4096;
p = pa_memblock_acquire(silence_tmp.memblock);
memset(p, 0, 4096);
pa_memblock_release(silence_tmp.memblock);
pa_raop_client_encode_sample(u->raop, &silence_tmp, &silence);
pa_assert(0 == silence_tmp.length);
silence_overhead = silence_tmp.length - 4096;
silence_ratio = silence_tmp.length / 4096;
pa_memblock_unref(silence_tmp.memblock);
}
for (;;) {
ssize_t l;
if (u->encoded_memchunk.length <= 0) {
if (u->encoded_memchunk.memblock)
pa_memblock_unref(u->encoded_memchunk.memblock);
if (PA_SINK_IS_OPENED(u->sink->thread_info.state)) {
size_t rl;
/* We render real data */
if (u->raw_memchunk.length <= 0) {
if (u->raw_memchunk.memblock)
pa_memblock_unref(u->raw_memchunk.memblock);
pa_memchunk_reset(&u->raw_memchunk);
/* Grab unencoded data */
pa_sink_render(u->sink, u->block_size, &u->raw_memchunk);
}
pa_assert(u->raw_memchunk.length > 0);
/* Encode it */
rl = u->raw_memchunk.length;
u->encoding_overhead += u->next_encoding_overhead;
pa_raop_client_encode_sample(u->raop, &u->raw_memchunk, &u->encoded_memchunk);
u->next_encoding_overhead = (u->encoded_memchunk.length - (rl - u->raw_memchunk.length));
u->encoding_ratio = u->encoded_memchunk.length / (rl - u->raw_memchunk.length);
} else {
/* We render some silence into our memchunk */
memcpy(&u->encoded_memchunk, &silence, sizeof(pa_memchunk));
pa_memblock_ref(silence.memblock);
/* Calculate/store some values to be used with the smoother */
u->next_encoding_overhead = silence_overhead;
u->encoding_ratio = silence_ratio;
}
}
pa_assert(u->encoded_memchunk.length > 0);
p = pa_memblock_acquire(u->encoded_memchunk.memblock);
l = pa_write(u->fd, (uint8_t*) p + u->encoded_memchunk.index, u->encoded_memchunk.length, &write_type);
pa_memblock_release(u->encoded_memchunk.memblock);
pa_assert(l != 0);
if (l < 0) {
if (errno == EINTR)
continue;
else if (errno == EAGAIN) {
/* OK, we filled all socket buffers up
* now. */
goto filled_up;
} else {
pa_log("Failed to write data to FIFO: %s", pa_cstrerror(errno));
goto fail;
}
} else {
u->offset += l;
u->encoded_memchunk.index += l;
u->encoded_memchunk.length -= l;
pollfd->revents = 0;
if (u->encoded_memchunk.length > 0) {
/* we've completely written the encoded data, so update our overhead */
u->encoding_overhead += u->next_encoding_overhead;
/* OK, we wrote less that we asked for,
* hence we can assume that the socket
* buffers are full now */
goto filled_up;
}
}
}
filled_up:
/* At this spot we know that the socket buffers are
* fully filled up. This is the best time to estimate
* the playback position of the server */
n = u->offset - u->encoding_overhead;
#ifdef SIOCOUTQ
{
int l;
if (ioctl(u->fd, SIOCOUTQ, &l) >= 0 && l > 0)
n -= (l / u->encoding_ratio);
}
#endif
usec = pa_bytes_to_usec(n, &u->sink->sample_spec);
if (usec > u->latency)
usec -= u->latency;
else
usec = 0;
pa_smoother_put(u->smoother, pa_rtclock_now(), usec);
}
/* Hmm, nothing to do. Let's sleep */
pollfd->events = POLLOUT; /*PA_SINK_IS_OPENED(u->sink->thread_info.state) ? POLLOUT : 0;*/
}
if ((ret = pa_rtpoll_run(u->rtpoll)) < 0)
goto fail;
if (ret == 0)
goto finish;
if (u->rtpoll_item) {
struct pollfd* pollfd;
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
if (pollfd->revents & ~POLLOUT) {
if (u->sink->thread_info.state != PA_SINK_SUSPENDED) {
pa_log("FIFO shutdown.");
goto fail;
}
/* We expect this to happen on occasion if we are not sending data.
It's perfectly natural and normal and natural */
if (u->rtpoll_item)
pa_rtpoll_item_free(u->rtpoll_item);
u->rtpoll_item = NULL;
}
}
}
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:
if (silence.memblock)
pa_memblock_unref(silence.memblock);
pa_log_debug("Thread shutting down");
}
static void thread_func(void *userdata) {
struct userdata *u = userdata;
int read_type = 0;
pa_assert(u);
pa_log_debug("Thread starting up");
pa_thread_mq_install(&u->thread_mq);
for (;;) {
int ret;
struct pollfd *pollfd;
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
/* Try to read some data and pass it on to the source driver */
if (u->source->thread_info.state == PA_SOURCE_RUNNING && pollfd->revents) {
ssize_t l;
void *p;
if (!u->memchunk.memblock) {
u->memchunk.memblock = pa_memblock_new(u->core->mempool, pa_pipe_buf(u->fd));
u->memchunk.index = u->memchunk.length = 0;
}
pa_assert(pa_memblock_get_length(u->memchunk.memblock) > u->memchunk.index);
p = pa_memblock_acquire(u->memchunk.memblock);
l = pa_read(u->fd, (uint8_t*) p + u->memchunk.index, pa_memblock_get_length(u->memchunk.memblock) - u->memchunk.index, &read_type);
pa_memblock_release(u->memchunk.memblock);
pa_assert(l != 0); /* EOF cannot happen, since we opened the fifo for both reading and writing */
if (l < 0) {
if (errno == EINTR)
continue;
else if (errno != EAGAIN) {
pa_log("Failed to read data from FIFO: %s", pa_cstrerror(errno));
goto fail;
}
} else {
u->memchunk.length = (size_t) l;
pa_source_post(u->source, &u->memchunk);
u->memchunk.index += (size_t) l;
if (u->memchunk.index >= pa_memblock_get_length(u->memchunk.memblock)) {
pa_memblock_unref(u->memchunk.memblock);
pa_memchunk_reset(&u->memchunk);
}
pollfd->revents = 0;
}
}
/* Hmm, nothing to do. Let's sleep */
pollfd->events = (short) (u->source->thread_info.state == PA_SOURCE_RUNNING ? POLLIN : 0);
if ((ret = pa_rtpoll_run(u->rtpoll)) < 0)
goto fail;
if (ret == 0)
goto finish;
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
if (pollfd->revents & ~POLLIN) {
pa_log("FIFO shutdown.");
goto fail;
}
}
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");
}
static void thread_func(void *userdata)
{
struct context *context = userdata;
int ret;
pa_usec_t now;
pa_assert(context);
pa_log_debug("Thread starting up");
pa_thread_mq_install(&context->thread_mq);
context->timestamp = pa_rtclock_now();
for (;;)
{
if (context->sink->thread_info.state == PA_SINK_RUNNING)
{
now = pa_rtclock_now();
if (context->sink->thread_info.rewind_requested)
{
process_rewind(context, now);
}
if (context->timestamp <= now)
{
pa_log_debug("thread_func: calling process_render");
process_render(context, now);
}
pa_rtpoll_set_timer_absolute(context->rtpoll, context->timestamp);
}
else
{
pa_rtpoll_set_timer_disabled(context->rtpoll);
}
#if PA_CHECK_VERSION(5,0,0)
if ((ret = pa_rtpoll_run(context->rtpoll)) < 0)
#else
if ((ret = pa_rtpoll_run(context->rtpoll, TRUE)) < 0)
#endif
{
goto FAIL;
}
if (ret == 0)
{
goto DONE;
}
}
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(context->thread_mq.outq, PA_MSGOBJECT(context->core),
PA_CORE_MESSAGE_UNLOAD_MODULE, context->module, 0, NULL, NULL);
pa_asyncmsgq_wait_for(context->thread_mq.inq, PA_MESSAGE_SHUTDOWN);
DONE:
pa_log_debug("Thread shutting down");
}
