+++ /dev/null
-/* $Id$ */
-
-/***
- This file is part of polypaudio.
-
- polypaudio is free software; you can redistribute it and/or modify
- it under the terms of the GNU Lesser General Public License as published
- by the Free Software Foundation; either version 2 of the License,
- or (at your option) any later version.
-
- polypaudio is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with polypaudio; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- USA.
-***/
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#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 "iochannel.h"
-#include "sink.h"
-#include "module.h"
-#include "util.h"
-#include "modargs.h"
-#include "xmalloc.h"
-#include "log.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_USAGE("sink_name=<name for the sink> file=<path of the FIFO> format=<sample format> channels=<number of channels> rate=<sample rate>")
-
-#define DEFAULT_FIFO_NAME "/tmp/music.output"
-#define DEFAULT_SINK_NAME "fifo_output"
-
-struct userdata {
- pa_core *core;
-
- char *filename;
-
- pa_sink *sink;
- pa_iochannel *io;
- pa_defer_event *defer_event;
-
- pa_memchunk memchunk;
- pa_module *module;
-};
-
-static const char* const valid_modargs[] = {
- "file",
- "rate",
- "format",
- "channels",
- "sink_name",
- NULL
-};
-
-static void do_write(struct userdata *u) {
- ssize_t r;
- assert(u);
-
- u->core->mainloop->defer_enable(u->defer_event, 0);
-
- if (!pa_iochannel_is_writable(u->io))
- return;
-
- pa_module_set_used(u->module, pa_idxset_size(u->sink->inputs) + pa_idxset_size(u->sink->monitor_source->outputs));
-
- if (!u->memchunk.length)
- if (pa_sink_render(u->sink, PIPE_BUF, &u->memchunk) < 0)
- return;
-
- assert(u->memchunk.memblock && u->memchunk.length);
-
- if ((r = pa_iochannel_write(u->io, (uint8_t*) u->memchunk.memblock->data + u->memchunk.index, u->memchunk.length)) < 0) {
- pa_log(__FILE__": write() failed: %s\n", strerror(errno));
- return;
- }
-
- u->memchunk.index += r;
- u->memchunk.length -= r;
-
- if (u->memchunk.length <= 0) {
- pa_memblock_unref(u->memchunk.memblock);
- u->memchunk.memblock = NULL;
- }
-}
-
-static void notify_cb(pa_sink*s) {
- struct userdata *u = s->userdata;
- assert(s && u);
-
- if (pa_iochannel_is_writable(u->io))
- u->core->mainloop->defer_enable(u->defer_event, 1);
-}
-
-static pa_usec_t get_latency_cb(pa_sink *s) {
- struct userdata *u = s->userdata;
- assert(s && u);
-
- return u->memchunk.memblock ? pa_bytes_to_usec(u->memchunk.length, &s->sample_spec) : 0;
-}
-
-static void defer_callback(PA_GCC_UNUSED pa_mainloop_api *m, PA_GCC_UNUSED pa_defer_event*e, void *userdata) {
- struct userdata *u = userdata;
- assert(u);
- do_write(u);
-}
-
-static void io_callback(PA_GCC_UNUSED pa_iochannel *io, void*userdata) {
- struct userdata *u = userdata;
- assert(u);
- do_write(u);
-}
-
-int pa__init(pa_core *c, pa_module*m) {
- struct userdata *u = NULL;
- struct stat st;
- const char *p;
- int fd = -1;
- pa_sample_spec ss;
- pa_modargs *ma = NULL;
- assert(c && m);
-
- if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
- pa_log(__FILE__": failed to parse module arguments\n");
- goto fail;
- }
-
- ss = c->default_sample_spec;
- if (pa_modargs_get_sample_spec(ma, &ss) < 0) {
- pa_log(__FILE__": invalid sample format specification\n");
- goto fail;
- }
-
- mkfifo(p = pa_modargs_get_value(ma, "file", DEFAULT_FIFO_NAME), 0777);
-
- if ((fd = open(p, O_RDWR)) < 0) {
- pa_log(__FILE__": open('%s'): %s\n", p, strerror(errno));
- goto fail;
- }
-
- pa_fd_set_cloexec(fd, 1);
-
- if (fstat(fd, &st) < 0) {
- pa_log(__FILE__": fstat('%s'): %s\n", p, strerror(errno));
- goto fail;
- }
-
- if (!S_ISFIFO(st.st_mode)) {
- pa_log(__FILE__": '%s' is not a FIFO.\n", p);
- goto fail;
- }
-
- u = pa_xmalloc0(sizeof(struct userdata));
- u->filename = pa_xstrdup(p);
- u->core = c;
- u->module = m;
- m->userdata = u;
-
- if (!(u->sink = pa_sink_new(c, __FILE__, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &ss, NULL))) {
- pa_log(__FILE__": failed to create sink.\n");
- goto fail;
- }
- u->sink->notify = notify_cb;
- u->sink->get_latency = get_latency_cb;
- u->sink->userdata = u;
- pa_sink_set_owner(u->sink, m);
- u->sink->description = pa_sprintf_malloc("Unix FIFO sink '%s'", p);
- assert(u->sink->description);
-
- u->io = pa_iochannel_new(c->mainloop, -1, fd);
- assert(u->io);
- pa_iochannel_set_callback(u->io, io_callback, u);
-
- u->memchunk.memblock = NULL;
- u->memchunk.length = 0;
-
- u->defer_event = c->mainloop->defer_new(c->mainloop, defer_callback, u);
- assert(u->defer_event);
- c->mainloop->defer_enable(u->defer_event, 0);
-
- pa_modargs_free(ma);
-
- return 0;
-
-fail:
- if (ma)
- pa_modargs_free(ma);
-
- if (fd >= 0)
- close(fd);
-
- pa__done(c, m);
-
- return -1;
-}
-
-void pa__done(pa_core *c, pa_module*m) {
- struct userdata *u;
- assert(c && m);
-
- if (!(u = m->userdata))
- return;
-
- if (u->memchunk.memblock)
- pa_memblock_unref(u->memchunk.memblock);
-
- pa_sink_disconnect(u->sink);
- pa_sink_unref(u->sink);
- pa_iochannel_free(u->io);
- u->core->mainloop->defer_free(u->defer_event);
-
- assert(u->filename);
- unlink(u->filename);
- pa_xfree(u->filename);
-
- pa_xfree(u);
-}