11 #include "iochannel.h"
20 struct pa_iochannel *io;
22 void *mainloop_source;
23 struct pa_mainloop_api *mainloop;
25 struct pa_memchunk memchunk;
28 static void do_write(struct userdata *u) {
32 u->mainloop->enable_fixed(u->mainloop, u->mainloop_source, 0);
34 if (!pa_iochannel_is_writable(u->io))
37 if (!u->memchunk.length)
38 if (pa_sink_render(u->sink, PIPE_BUF, &u->memchunk) < 0)
41 assert(u->memchunk.memblock && u->memchunk.length);
43 if ((r = pa_iochannel_write(u->io, u->memchunk.memblock->data + u->memchunk.index, u->memchunk.length)) < 0) {
44 fprintf(stderr, "write() failed: %s\n", strerror(errno));
48 u->memchunk.index += r;
49 u->memchunk.length -= r;
51 if (u->memchunk.length <= 0) {
52 pa_memblock_unref(u->memchunk.memblock);
53 u->memchunk.memblock = NULL;
57 static void notify_cb(struct pa_sink*s) {
58 struct userdata *u = s->userdata;
61 if (pa_iochannel_is_writable(u->io))
62 u->mainloop->enable_fixed(u->mainloop, u->mainloop_source, 1);
65 static void fixed_callback(struct pa_mainloop_api *m, void *id, void *userdata) {
66 struct userdata *u = userdata;
71 static void io_callback(struct pa_iochannel *io, void*userdata) {
72 struct userdata *u = userdata;
77 int pa_module_init(struct pa_core *c, struct pa_module*m) {
78 struct userdata *u = NULL;
82 static const struct pa_sample_spec ss = {
83 .format = PA_SAMPLE_S16NE,
89 mkfifo((p = m->argument ? m->argument : "/tmp/musicfifo"), 0777);
91 if ((fd = open(p, O_RDWR)) < 0) {
92 fprintf(stderr, "open('%s'): %s\n", p, strerror(errno));
96 if (fstat(fd, &st) < 0) {
97 fprintf(stderr, "fstat('%s'): %s\n", p, strerror(errno));
101 if (!S_ISFIFO(st.st_mode)) {
102 fprintf(stderr, "'%s' is not a FIFO\n", p);
107 u = malloc(sizeof(struct userdata));
110 u->filename = strdup(p);
113 u->sink = pa_sink_new(c, "fifo", 0, &ss);
115 u->sink->notify = notify_cb;
116 u->sink->userdata = u;
117 pa_sink_set_owner(u->sink, m);
118 u->sink->description = pa_sprintf_malloc("Unix FIFO sink '%s'", p);
119 assert(u->sink->description);
121 u->io = pa_iochannel_new(c->mainloop, -1, fd);
123 pa_iochannel_set_callback(u->io, io_callback, u);
125 u->memchunk.memblock = NULL;
126 u->memchunk.length = 0;
128 u->mainloop = c->mainloop;
129 u->mainloop_source = u->mainloop->source_fixed(u->mainloop, fixed_callback, u);
130 assert(u->mainloop_source);
131 u->mainloop->enable_fixed(u->mainloop, u->mainloop_source, 0);
144 void pa_module_done(struct pa_core *c, struct pa_module*m) {
151 if (u->memchunk.memblock)
152 pa_memblock_unref(u->memchunk.memblock);
154 pa_sink_free(u->sink);
155 pa_iochannel_free(u->io);
156 u->mainloop->cancel_fixed(u->mainloop, u->mainloop_source);