-/* $Id$ */
-
/***
This file is part of PulseAudio.
#include <fcntl.h>
#include <unistd.h>
#include <limits.h>
+#include <sys/ioctl.h>
#include <sys/poll.h>
#include <pulse/xmalloc.h>
#include <pulsecore/log.h>
#include <pulsecore/thread.h>
#include <pulsecore/thread-mq.h>
+#include <pulsecore/rtpoll.h>
#include "module-pipe-source-symdef.h"
-PA_MODULE_AUTHOR("Lennart Poettering")
-PA_MODULE_DESCRIPTION("UNIX pipe source")
-PA_MODULE_VERSION(PACKAGE_VERSION)
+PA_MODULE_AUTHOR("Lennart Poettering");
+PA_MODULE_DESCRIPTION("UNIX pipe source");
+PA_MODULE_VERSION(PACKAGE_VERSION);
+PA_MODULE_LOAD_ONCE(FALSE);
PA_MODULE_USAGE(
"source_name=<name for the source> "
"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.input"
#define DEFAULT_SOURCE_NAME "fifo_input"
pa_core *core;
pa_module *module;
pa_source *source;
+
pa_thread *thread;
pa_thread_mq thread_mq;
-
+ pa_rtpoll *rtpoll;
+
char *filename;
int fd;
pa_memchunk memchunk;
+
+ pa_rtpoll_item *rtpoll_item;
};
static const char* const valid_modargs[] = {
NULL
};
+static int source_process_msg(
+ pa_msgobject *o,
+ int code,
+ void *data,
+ int64_t offset,
+ pa_memchunk *chunk) {
+
+ struct userdata *u = PA_SOURCE(o)->userdata;
+
+ switch (code) {
+
+ case PA_SOURCE_MESSAGE_GET_LATENCY: {
+ size_t n = 0;
+ int l;
+
+#ifdef FIONREAD
+ if (ioctl(u->fd, FIONREAD, &l) >= 0 && l > 0)
+ n = (size_t) l;
+#endif
+
+ *((pa_usec_t*) data) = pa_bytes_to_usec(n, &u->source->sample_spec);
+ return 0;
+ }
+ }
+
+ return pa_source_process_msg(o, code, data, offset, chunk);
+}
+
static void thread_func(void *userdata) {
- enum {
- POLLFD_ASYNCQ,
- POLLFD_FIFO,
- POLLFD_MAX,
- };
-
struct userdata *u = userdata;
- struct pollfd pollfd[POLLFD_MAX];
int read_type = 0;
pa_assert(u);
pa_log_debug("Thread starting up");
pa_thread_mq_install(&u->thread_mq);
-
- memset(&pollfd, 0, sizeof(pollfd));
-
- pollfd[POLLFD_ASYNCQ].fd = pa_asyncmsgq_get_fd(u->thread_mq.inq);
- pollfd[POLLFD_ASYNCQ].events = POLLIN;
- pollfd[POLLFD_FIFO].fd = u->fd;
+ pa_rtpoll_install(u->rtpoll);
for (;;) {
- pa_msgobject *object;
- int code;
- void *data;
- pa_memchunk chunk;
- int r;
- int64_t offset;
-
- /* Check whether there is a message for us to process */
- if (pa_asyncmsgq_get(u->thread_mq.inq, &object, &code, &data, &offset, &chunk, 0) == 0) {
- int ret;
-
- if (!object && code == PA_MESSAGE_SHUTDOWN) {
- pa_asyncmsgq_done(u->thread_mq.inq, 0);
- goto finish;
- }
+ int ret;
+ struct pollfd *pollfd;
- ret = pa_asyncmsgq_dispatch(object, code, data, offset, &chunk);
- pa_asyncmsgq_done(u->thread_mq.inq, ret);
- continue;
- }
+ 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[POLLFD_FIFO].revents) {
- void *p;
+ 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, PIPE_BUF);
} else {
- u->memchunk.length = l;
+ u->memchunk.length = (size_t) l;
pa_source_post(u->source, &u->memchunk);
- u->memchunk.index += l;
+ 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[POLLFD_FIFO].revents = 0;
- continue;
+ pollfd->revents = 0;
}
}
- pollfd[POLLFD_FIFO].events = u->source->thread_info.state == PA_SOURCE_RUNNING ? POLLIN : 0;
-
/* Hmm, nothing to do. Let's sleep */
+ pollfd->events = (short) (u->source->thread_info.state == PA_SOURCE_RUNNING ? POLLIN : 0);
- if (pa_asyncmsgq_before_poll(u->thread_mq.inq) < 0)
- continue;
-
-/* pa_log("polling for %i", pollfd[POLLFD_FIFO].events); */
- r = poll(pollfd, POLLFD_MAX, -1);
-/* pa_log("polling got %i (r=%i) %i", r > 0 ? pollfd[POLLFD_FIFO].revents : 0, r, r > 0 ? pollfd[POLLFD_ASYNCQ].revents: 0); */
-
- pa_asyncmsgq_after_poll(u->thread_mq.inq);
+ 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 & ~POLLIN) {
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 */
+ /* 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_source_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 = pa_xnew0(struct userdata, 1);
+ m->userdata = u = pa_xnew0(struct userdata, 1);
u->core = m->core;
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_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll);
+
+ u->filename = pa_runtime_path(pa_modargs_get_value(ma, "file", DEFAULT_FILE_NAME));
- u->filename = pa_xstrdup(pa_modargs_get_value(ma, "file", DEFAULT_FILE_NAME));
-
mkfifo(u->filename, 0666);
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",u->filename, pa_cstrerror(errno));
goto fail;
}
- if (!(u->source = pa_source_new(m->core, __FILE__, pa_modargs_get_value(ma, "source_name", DEFAULT_SOURCE_NAME), 0, &ss, &map))) {
+ 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);
+
+ 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_module(u->source, m);
+
pa_source_set_asyncmsgq(u->source, u->thread_mq.inq);
- pa_source_set_description(u->source, t = pa_sprintf_malloc("Unix FIFO source '%s'", u->filename));
- pa_xfree(t);
+ pa_source_set_rtpoll(u->source, 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_source_put(u->source);
+
pa_modargs_free(ma);
return 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_source_linked_by(u->source);
+}
+
void pa__done(pa_module*m) {
struct userdata *u;
-
+
pa_assert(m);
if (!(u = m->userdata))
return;
if (u->source)
- pa_source_disconnect(u->source);
+ pa_source_unlink(u->source);
if (u->thread) {
pa_asyncmsgq_send(u->thread_mq.inq, NULL, PA_MESSAGE_SHUTDOWN, NULL, 0, NULL);
if (u->source)
pa_source_unref(u->source);
-
+
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);
}