-/* $Id$ */
-
/***
This file is part of PulseAudio.
#include <stdlib.h>
#include <sys/stat.h>
#include <stdio.h>
-#include <assert.h>
#include <errno.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <limits.h>
+#include <sys/ioctl.h>
+#include <poll.h>
#include <pulse/xmalloc.h>
#include <pulsecore/core-error.h>
-#include <pulsecore/iochannel.h>
#include <pulsecore/sink.h>
#include <pulsecore/module.h>
#include <pulsecore/core-util.h>
#include <pulsecore/modargs.h>
#include <pulsecore/log.h>
+#include <pulsecore/thread.h>
+#include <pulsecore/thread-mq.h>
+#include <pulsecore/rtpoll.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_thread *thread;
+
+ pa_memchunk memchunk;
+
+ pa_rtpoll_item *rtpoll_item;
+
+ int write_type;
};
static const char* const valid_modargs[] = {
NULL
};
-enum {
- POLLFD_ASYNCQ,
- POLLFD_FIFO,
- POLLFD_MAX,
-};
+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;
-static void thread_func(void *userdata) {
- struct userdata *u = userdata;
- int quit = 0;
- struct pollfd pollfd[POLLFD_MAX];
- int running = 1, underrun = 0;
- pa_memchunk memchunk;
+ switch (code) {
- pa_assert(u);
+ case PA_SINK_MESSAGE_GET_LATENCY: {
+ size_t n = 0;
+ int l;
- pa_log_debug("Thread starting up");
+#ifdef FIONREAD
+ if (ioctl(u->fd, FIONREAD, &l) >= 0 && l > 0)
+ n = (size_t) l;
+#endif
- memset(&pollfd, 0, sizeof(pollfd));
- pollfd[POLLFD_ASYNCQ].fd = pa_asyncmsgq_get_fd(u->sink->asyncmsgq, PA_ASYNCQ_POP);
- pollfd[POLLFD_ASYNCQ].events = POLLIN;
+ n += u->memchunk.length;
- pollfd[POLLFD_FIFO].fd = u->fd;
+ *((pa_usec_t*) data) = pa_bytes_to_usec(n, &u->sink->sample_spec);
+ return 0;
+ }
+ }
- memset(&memchunk, 0, sizeof(memchunk));
+ 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 (;;) {
- int code;
- void *object, *data;
- int r;
- struct timeval now;
-
- /* Check whether there is a message for us to process */
- if (pa_asyncmsgq_get(u->sink->asyncmsgq, &object, &code, &data) == 0) {
-
-
- /* Now process these messages our own way */
- if (!object) {
- switch (code) {
- case PA_SINK_MESSAGE_SHUTDOWN:
- goto finish;
-
- default:
- pa_sink_process_msg(u->sink->asyncmsgq, object, code, data);
- }
-
- } else if (object == u->sink) {
-
- case PA_SINK_MESSAGE_STOP:
- pa_assert(running);
- running = 0;
- break;
-
- case PA_SINK_MESSAGE_START:
- pa_assert(!running);
- running = 1;
- break;
-
- case PA_SINK_MESSAGE_GET_LATENCY: {
- size_t n = 0;
- int l;
-
- if (ioctl(u->fd, TIOCINQ, &l) >= 0 && l > 0)
- n = (size_t) l;
-
- n += memchunk.length;
-
- *((pa_usec_t*) data) pa_bytes_to_usec(n, &u->sink->sample_spec);
- break;
- }
-
- /* ... */
-
- default:
- pa_sink_process_msg(u->sink->asyncmsgq, object, code, data);
+ 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);
}
-
- pa_asyncmsgq_done(u->sink->asyncmsgq);
- continue;
}
+ return 0;
+ }
+}
+
+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);
+
+ 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 (running && (pollfd[POLLFD_FIFO].revents || underrun)) {
-
- if (chunk.length <= 0)
- pa_sink_render(u->fd, PIPE_BUF, &chunk);
-
- underrun = chunk.length <= 0;
-
- if (!underrun) {
- ssize_t l;
-
- p = pa_memblock_acquire(u->memchunk.memblock);
- l = pa_write(u->fd, (uint8_t*) p + u->memchunk.index, u->memchunk.length);
- pa_memblock_release(p);
-
- if (l < 0) {
-
- if (errno != EINTR && errno != EAGAIN) {
- pa_log("Failed to write data to FIFO: %s", pa_cstrerror(errno));
- goto fail;
- }
-
- } else {
-
- u->memchunk.index += l;
- u->memchunk.length -= l;
-
- if (u->memchunk.length <= 0) {
- pa_memblock_unref(u->memchunk.memblock);
- u->memchunk.memblock = NULL;
- }
- }
-
- pollfd[POLLFD_FIFO].revents = 0;
- continue;
+ 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;
}
}
- pollfd[POLLFD_FIFO].events = running && !underrun ? POLLOUT : 0;
-
/* Hmm, nothing to do. Let's sleep */
-
- if (pa_asyncmsgq_before_poll(u->sink->asyncmsgq) < 0)
- continue;
+ pollfd->events = (short) (u->sink->thread_info.state == PA_SINK_RUNNING ? POLLOUT : 0);
- r = poll(&pollfd, 1, 0);
- pa_asyncmsgq_after_poll(u->sink->asyncmsgq);
+ if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0)
+ goto fail;
- if (r < 0) {
- if (errno == EINTR)
- continue;
+ if (ret == 0)
+ goto finish;
- pa_log("poll() failed: %s", pa_cstrerror(errno));
- goto fail;
- }
+ pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
- if (pollfd[POLLFD_FIFO].revents & ~POLLIN) {
+ if (pollfd->revents & ~POLLOUT) {
pa_log("FIFO shutdown.");
goto fail;
}
-
- pa_assert(pollfd[POLLFD_ASYNCQ].revents & ~POLLIN == 0);
}
-
+
fail:
- /* We have to continue processing messages until we receive the
- * SHUTDOWN message */
- pa_asyncmsgq_post(u->core->asyncmsgq, u->core, PA_CORE_MESSAGE_UNLOAD_MODULE, pa_module_ref(u->module), pa_module_unref);
- pa_asyncmsgq_wait_for(PA_SINK_MESSAGE_SHUTDOWN);
+ /* 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 pa__init(pa_core *c, pa_module*m) {
- struct userdata *u = NULL;
+int pa__init(pa_module*m) {
+ struct userdata *u;
struct stat st;
pa_sample_spec ss;
pa_channel_map map;
- pa_modargs *ma = NULL;
- char *t;
+ pa_modargs *ma;
+ struct pollfd *pollfd;
+ pa_sink_new_data data;
- pa_assert(c);
pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
goto fail;
}
- ss = c->default_sample_spec;
+ 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");
+ pa_log("Invalid sample format specification or channel map");
goto fail;
}
u = pa_xnew0(struct userdata, 1);
- u->core = c;
+ u->core = m->core;
u->module = m;
- u->filename = pa_xstrdup(pa_modargs_get_value(ma, "file", DEFAULT_FIFO_NAME));
- u->fd = fd;
- u->memchunk.memblock = NULL;
- u->memchunk.length = 0;
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;
+
+ 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)) < 0) {
- pa_log("open('%s'): %s", p, pa_cstrerror(errno));
+ if ((u->fd = open(u->filename, O_RDWR|O_NOCTTY)) < 0) {
+ pa_log("open('%s'): %s", u->filename, pa_cstrerror(errno));
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", p, pa_cstrerror(errno));
+ 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.", p);
+ pa_log("'%s' is not a FIFO.", u->filename);
goto fail;
}
- if (!(u->sink = pa_sink_new(c, __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;
- pa_sink_set_owner(u->sink, m);
- pa_sink_set_description(u->sink, t = pa_sprintf_malloc("Unix FIFO sink '%s'", p));
- pa_xfree(t);
+
+ pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
+ pa_sink_set_rtpoll(u->sink, u->rtpoll);
+
+ 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(thread_func, u))) {
pa_log("Failed to create thread.");
goto fail;
}
-
+
+ pa_sink_put(u->sink);
+
pa_modargs_free(ma);
return 0;
if (ma)
pa_modargs_free(ma);
- pa__done(c, m);
+ pa__done(m);
return -1;
}
-void pa__done(pa_core *c, pa_module*m) {
+int pa__get_n_used(pa_module *m) {
struct userdata *u;
- pa_assert(c);
+
+ 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;
- pa_sink_disconnect(u->sink);
+ if (u->sink)
+ pa_sink_unlink(u->sink);
if (u->thread) {
- pa_asyncmsgq_send(u->sink->asyncmsgq, PA_SINK_MESSAGE_SHUTDOWN, NULL);
+ pa_asyncmsgq_send(u->thread_mq.inq, NULL, PA_MESSAGE_SHUTDOWN, NULL, 0, NULL);
pa_thread_free(u->thread);
}
-
- pa_sink_unref(u->sink);
+
+ pa_thread_mq_done(&u->thread_mq);
+
+ if (u->sink)
+ pa_sink_unref(u->sink);
if (u->memchunk.memblock)
pa_memblock_unref(u->memchunk.memblock);
+ if (u->rtpoll_item)
+ pa_rtpoll_item_free(u->rtpoll_item);
+
+ if (u->rtpoll)
+ pa_rtpoll_free(u->rtpoll);
+
if (u->filename) {
unlink(u->filename);
pa_xfree(u->filename);
}
if (u->fd >= 0)
- close(u->fd);
+ pa_assert_se(pa_close(u->fd) == 0);
pa_xfree(u);
}