merge 'lennart' branch back into trunk.

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1971 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2007-10-28 19:13:50 +00:00
parent 6687dd0131
commit a67c21f093
294 changed files with 79057 additions and 11614 deletions

View file

@ -28,22 +28,24 @@
#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/poll.h>
#include <pulse/xmalloc.h>
#include <pulsecore/core-error.h>
#include <pulsecore/iochannel.h>
#include <pulsecore/source.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-source-symdef.h"
@ -58,18 +60,24 @@ PA_MODULE_USAGE(
"rate=<sample rate> "
"channel_map=<channel map>")
#define DEFAULT_FIFO_NAME "/tmp/music.input"
#define DEFAULT_FILE_NAME "/tmp/music.input"
#define DEFAULT_SOURCE_NAME "fifo_input"
struct userdata {
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_source *source;
pa_iochannel *io;
pa_module *module;
pa_memchunk chunk;
pa_memchunk memchunk;
pa_rtpoll_item *rtpoll_item;
};
static const char* const valid_modargs[] = {
@ -82,109 +90,168 @@ static const char* const valid_modargs[] = {
NULL
};
static void do_read(struct userdata *u) {
ssize_t r;
pa_memchunk chunk;
assert(u);
if (!pa_iochannel_is_readable(u->io))
return;
pa_module_set_used(u->module, pa_idxset_size(u->source->outputs));
if (!u->chunk.memblock) {
u->chunk.memblock = pa_memblock_new(u->core->mempool, PIPE_BUF);
u->chunk.index = chunk.length = 0;
}
assert(u->chunk.memblock && u->chunk.memblock->length > u->chunk.index);
if ((r = pa_iochannel_read(u->io, (uint8_t*) u->chunk.memblock->data + u->chunk.index, u->chunk.memblock->length - u->chunk.index)) <= 0) {
pa_log("read(): %s", pa_cstrerror(errno));
return;
}
u->chunk.length = r;
pa_source_post(u->source, &u->chunk);
u->chunk.index += r;
if (u->chunk.index >= u->chunk.memblock->length) {
u->chunk.index = u->chunk.length = 0;
pa_memblock_unref(u->chunk.memblock);
u->chunk.memblock = NULL;
}
}
static void io_callback(PA_GCC_UNUSED pa_iochannel *io, void*userdata) {
static void thread_func(void *userdata) {
struct userdata *u = userdata;
assert(u);
do_read(u);
int read_type = 0;
pa_assert(u);
pa_log_debug("Thread starting up");
pa_thread_mq_install(&u->thread_mq);
pa_rtpoll_install(u->rtpoll);
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, PIPE_BUF);
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("Faile to read data from FIFO: %s", pa_cstrerror(errno));
goto fail;
}
} else {
u->memchunk.length = l;
pa_source_post(u->source, &u->memchunk);
u->memchunk.index += 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 = u->source->thread_info.state == PA_SOURCE_RUNNING ? POLLIN : 0;
if ((ret = pa_rtpoll_run(u->rtpoll, 1)) < 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");
}
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;
const char *p;
int fd = -1;
pa_sample_spec ss;
pa_channel_map map;
pa_modargs *ma = NULL;
pa_modargs *ma;
char *t;
struct pollfd *pollfd;
assert(c && m);
pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("failed to parse module arguments");
pa_log("failed to parse module arguments.");
goto fail;
}
ss = c->default_sample_spec;
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("invalid sample format specification or channel map");
goto fail;
}
mkfifo(p = pa_modargs_get_value(ma, "file", DEFAULT_FIFO_NAME), 0777);
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_rtpoll_item_new_asyncmsgq(u->rtpoll, PA_RTPOLL_EARLY, u->thread_mq.inq);
if ((fd = open(p, O_RDWR)) < 0) {
pa_log("open('%s'): %s", p, pa_cstrerror(errno));
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(fd, 1);
pa_make_fd_cloexec(u->fd);
pa_make_fd_nonblock(u->fd);
if (fstat(fd, &st) < 0) {
pa_log("fstat('%s'): %s", p, pa_cstrerror(errno));
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.", p);
pa_log("'%s' is not a FIFO.", u->filename);
goto fail;
}
u = pa_xmalloc0(sizeof(struct userdata));
u->filename = pa_xstrdup(p);
u->core = c;
if (!(u->source = pa_source_new(c, __FILE__, pa_modargs_get_value(ma, "source_name", DEFAULT_SOURCE_NAME), 0, &ss, &map))) {
pa_log("failed to create source.");
if (!(u->source = pa_source_new(m->core, __FILE__, pa_modargs_get_value(ma, "source_name", DEFAULT_SOURCE_NAME), 0, &ss, &map))) {
pa_log("Failed to create source.");
goto fail;
}
u->source->userdata = u;
pa_source_set_owner(u->source, m);
pa_source_set_description(u->source, t = pa_sprintf_malloc("Unix FIFO source '%s'", p));
u->source->flags = 0;
pa_source_set_module(u->source, m);
pa_source_set_asyncmsgq(u->source, u->thread_mq.inq);
pa_source_set_rtpoll(u->source, u->rtpoll);
pa_source_set_description(u->source, t = pa_sprintf_malloc("Unix FIFO source '%s'", u->filename));
pa_xfree(t);
u->io = pa_iochannel_new(c->mainloop, fd, -1);
assert(u->io);
pa_iochannel_set_callback(u->io, io_callback, u);
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;
u->chunk.memblock = NULL;
u->chunk.index = u->chunk.length = 0;
if (!(u->thread = pa_thread_new(thread_func, u))) {
pa_log("Failed to create thread.");
goto fail;
}
u->module = m;
m->userdata = u;
pa_source_put(u->source);
pa_modargs_free(ma);
@ -194,31 +261,48 @@ fail:
if (ma)
pa_modargs_free(ma);
if (fd >= 0)
close(fd);
pa__done(c, m);
pa__done(m);
return -1;
}
void pa__done(pa_core *c, pa_module*m) {
void pa__done(pa_module*m) {
struct userdata *u;
assert(c && m);
pa_assert(m);
if (!(u = m->userdata))
return;
if (u->chunk.memblock)
pa_memblock_unref(u->chunk.memblock);
if (u->source)
pa_source_unlink(u->source);
pa_source_disconnect(u->source);
pa_source_unref(u->source);
pa_iochannel_free(u->io);
if (u->thread) {
pa_asyncmsgq_send(u->thread_mq.inq, NULL, PA_MESSAGE_SHUTDOWN, NULL, 0, NULL);
pa_thread_free(u->thread);
}
assert(u->filename);
unlink(u->filename);
pa_xfree(u->filename);
pa_thread_mq_done(&u->thread_mq);
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)
pa_assert_se(pa_close(u->fd) == 0);
pa_xfree(u);
}