-/* $Id$ */
-
/***
This file is part of PulseAudio.
#include <unistd.h>
#include <limits.h>
#include <sys/ioctl.h>
+#include <poll.h>
#include <pulse/xmalloc.h>
#include "module-pipe-sink-symdef.h"
-PA_MODULE_AUTHOR("Lennart Poettering")
-PA_MODULE_DESCRIPTION("UNIX pipe sink")
-PA_MODULE_VERSION(PACKAGE_VERSION)
+PA_MODULE_AUTHOR("Lennart Poettering");
+PA_MODULE_DESCRIPTION("UNIX pipe sink");
+PA_MODULE_VERSION(PACKAGE_VERSION);
+PA_MODULE_LOAD_ONCE(FALSE);
PA_MODULE_USAGE(
"sink_name=<name for the sink> "
"file=<path of the FIFO> "
"format=<sample format> "
"channels=<number of channels> "
"rate=<sample rate>"
- "channel_map=<channel map>")
+ "channel_map=<channel map>");
-#define DEFAULT_FILE_NAME "/tmp/music.output"
+#define DEFAULT_FILE_NAME "fifo_output"
#define DEFAULT_SINK_NAME "fifo_output"
struct userdata {
pa_core *core;
pa_module *module;
pa_sink *sink;
-
+
pa_thread *thread;
pa_thread_mq thread_mq;
pa_rtpoll *rtpoll;
-
+
char *filename;
int fd;
pa_memchunk memchunk;
pa_rtpoll_item *rtpoll_item;
+
+ int write_type;
};
static const char* const valid_modargs[] = {
struct userdata *u = PA_SINK(o)->userdata;
switch (code) {
-
+
case PA_SINK_MESSAGE_GET_LATENCY: {
size_t n = 0;
int l;
-#ifdef TIOCINQ
- if (ioctl(u->fd, TIOCINQ, &l) >= 0 && l > 0)
+#ifdef FIONREAD
+ if (ioctl(u->fd, FIONREAD, &l) >= 0 && l > 0)
n = (size_t) l;
#endif
-
+
n += u->memchunk.length;
-
+
*((pa_usec_t*) data) = pa_bytes_to_usec(n, &u->sink->sample_spec);
- break;
+ return 0;
}
}
-
+
return pa_sink_process_msg(o, code, data, offset, chunk);
}
+static int process_render(struct userdata *u) {
+ pa_assert(u);
+
+ if (u->memchunk.length <= 0)
+ pa_sink_render(u->sink, PIPE_BUF, &u->memchunk);
+
+ pa_assert(u->memchunk.length > 0);
+
+ for (;;) {
+ ssize_t l;
+ void *p;
+
+ p = pa_memblock_acquire(u->memchunk.memblock);
+ l = pa_write(u->fd, (uint8_t*) p + u->memchunk.index, u->memchunk.length, &u->write_type);
+ pa_memblock_release(u->memchunk.memblock);
+
+ pa_assert(l != 0);
+
+ if (l < 0) {
+
+ if (errno == EINTR)
+ continue;
+ else if (errno == EAGAIN)
+ return 0;
+ else {
+ pa_log("Failed to write data to FIFO: %s", pa_cstrerror(errno));
+ return -1;
+ }
+
+ } else {
+
+ 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);
+ }
+ }
+
+ return 0;
+ }
+}
+
static void thread_func(void *userdata) {
struct userdata *u = userdata;
- int write_type = 0;
pa_assert(u);
pa_rtpoll_install(u->rtpoll);
for (;;) {
- int ret;
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 (u->sink->thread_info.state == PA_SINK_RUNNING && pollfd->revents) {
- ssize_t l;
- void *p;
-
- if (u->memchunk.length <= 0)
- pa_sink_render(u->sink, PIPE_BUF, &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);
+ if (PA_SINK_IS_OPENED(u->sink->thread_info.state)) {
- pa_assert(l != 0);
+ if (u->sink->thread_info.rewind_requested)
+ pa_sink_process_rewind(u->sink, 0);
- if (l < 0) {
-
- if (errno == EINTR)
- continue;
- else if (errno != EAGAIN) {
- pa_log("Failed to write data to FIFO: %s", pa_cstrerror(errno));
+ if (pollfd->revents) {
+ if (process_render(u) < 0)
goto fail;
- }
-
- } else {
-
- u->memchunk.index += l;
- u->memchunk.length -= l;
-
- if (u->memchunk.length <= 0) {
- pa_memblock_unref(u->memchunk.memblock);
- pa_memchunk_reset(&u->memchunk);
- }
pollfd->revents = 0;
}
}
- /* Now give the sink inputs some to time to process their data */
- if ((ret = pa_sink_process_inputs(u->sink)) < 0)
- goto fail;
- if (ret > 0)
- continue;
-
- /* Check whether there is a message for us to process */
- if ((ret = pa_thread_mq_process(&u->thread_mq) < 0))
- goto finish;
- if (ret > 0)
- continue;
-
/* Hmm, nothing to do. Let's sleep */
- pollfd->events = u->sink->thread_info.state == PA_SINK_RUNNING ? POLLOUT : 0;
+ pollfd->events = (short) (u->sink->thread_info.state == PA_SINK_RUNNING ? POLLOUT : 0);
- if (pa_rtpoll_run(u->rtpoll) < 0) {
- pa_log("poll() failed: %s", pa_cstrerror(errno));
+ 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:
- /* We have to continue processing messages until we receive the
- * SHUTDOWN message */
+ /* 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_sample_spec ss;
pa_channel_map map;
pa_modargs *ma;
- char *t;
struct pollfd *pollfd;
+ pa_sink_new_data data;
pa_assert(m);
}
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->module = m;
m->userdata = u;
pa_memchunk_reset(&u->memchunk);
- pa_thread_mq_init(&u->thread_mq, m->core->mainloop);
u->rtpoll = pa_rtpoll_new();
- pa_rtpoll_item_new_asyncmsgq(u->rtpoll, u->thread_mq.inq);
-
- u->filename = pa_xstrdup(pa_modargs_get_value(ma, "file", DEFAULT_FILE_NAME));
+ pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll);
+ u->write_type = 0;
+
+ u->filename = pa_runtime_path(pa_modargs_get_value(ma, "file", DEFAULT_FILE_NAME));
mkfifo(u->filename, 0666);
if ((u->fd = open(u->filename, O_RDWR|O_NOCTTY)) < 0) {
goto fail;
}
- pa_fd_set_cloexec(u->fd, 1);
- pa_make_nonblock_fd(u->fd);
+ pa_make_fd_cloexec(u->fd);
+ 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 (!(u->sink = pa_sink_new(m->core, __FILE__, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &ss, &map))) {
+ 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, u->filename);
+ pa_proplist_setf(data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Unix FIFO sink %s", u->filename);
+ pa_sink_new_data_set_sample_spec(&data, &ss);
+ pa_sink_new_data_set_channel_map(&data, &map);
+
+ 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;
- u->sink->flags = PA_SINK_LATENCY;
-
- pa_sink_set_module(u->sink, m);
+
pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
pa_sink_set_rtpoll(u->sink, u->rtpoll);
- pa_sink_set_description(u->sink, t = pa_sprintf_malloc("Unix FIFO sink '%s'", u->filename));
- pa_xfree(t);
- u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, 1);
+ 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 -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))
}
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->rtpoll)
pa_rtpoll_free(u->rtpoll);
}
if (u->fd >= 0)
- close(u->fd);
+ pa_assert_se(pa_close(u->fd) == 0);
pa_xfree(u);
}