--- /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 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 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 "source.h"
+#include "module.h"
+#include "util.h"
+#include "modargs.h"
+#include "xmalloc.h"
+#include "log.h"
+
+#define DEFAULT_FIFO_NAME "/tmp/music.input"
+#define DEFAULT_SOURCE_NAME "fifo_input"
+
+struct userdata {
+ struct pa_core *core;
+
+ char *filename;
+
+ struct pa_source *source;
+ struct pa_iochannel *io;
+ struct pa_module *module;
+ struct pa_memchunk chunk;
+};
+
+static const char* const valid_modargs[] = {
+ "file",
+ "rate",
+ "channels",
+ "format",
+ "source_name",
+ NULL
+};
+
+static void do_read(struct userdata *u) {
+ ssize_t r;
+ struct pa_memchunk chunk;
+ assert(u);
+
+ if (!pa_iochannel_is_readable(u->io))
+ return;
+
+ pa_module_set_used(u->module, pa_idxset_ncontents(u->source->outputs));
+
+ if (!u->chunk.memblock) {
+ u->chunk.memblock = pa_memblock_new(1024, u->core->memblock_stat);
+ 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(__FILE__": read() failed: %s\n", strerror(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(struct pa_iochannel *io, void*userdata) {
+ struct userdata *u = userdata;
+ assert(u);
+ do_read(u);
+}
+
+int pa_module_init(struct pa_core *c, struct pa_module*m) {
+ struct userdata *u = NULL;
+ struct stat st;
+ const char *p;
+ int fd = -1;
+ struct pa_sample_spec ss;
+ struct 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;
+
+ if (!(u->source = pa_source_new(c, pa_modargs_get_value(ma, "source_name", DEFAULT_SOURCE_NAME), 0, &ss))) {
+ pa_log(__FILE__": failed to create source.\n");
+ goto fail;
+ }
+ u->source->userdata = u;
+ pa_source_set_owner(u->source, m);
+ u->source->description = pa_sprintf_malloc("Unix FIFO source '%s'", p);
+ assert(u->source->description);
+
+ u->io = pa_iochannel_new(c->mainloop, fd, -1);
+ assert(u->io);
+ pa_iochannel_set_callback(u->io, io_callback, u);
+
+ u->chunk.memblock = NULL;
+ u->chunk.index = u->chunk.length = 0;
+
+ u->module = m;
+ m->userdata = u;
+
+ pa_modargs_free(ma);
+
+ return 0;
+
+fail:
+ if (ma)
+ pa_modargs_free(ma);
+
+ if (fd >= 0)
+ close(fd);
+
+ pa_module_done(c, m);
+
+ return -1;
+}
+
+void pa_module_done(struct pa_core *c, struct pa_module*m) {
+ struct userdata *u;
+ assert(c && m);
+
+ if (!(u = m->userdata))
+ return;
+
+ if (u->chunk.memblock)
+ pa_memblock_unref(u->chunk.memblock);
+
+ pa_source_free(u->source);
+ pa_iochannel_free(u->io);
+
+ assert(u->filename);
+ unlink(u->filename);
+ pa_xfree(u->filename);
+
+ pa_xfree(u);
+}