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#include <assert.h>
#include <stdlib.h>
#include "simple.h"
#include "polyp.h"
#include "mainloop.h"
#include "polyp-error.h"
struct pa_simple {
struct pa_mainloop *mainloop;
struct pa_context *context;
struct pa_stream *stream;
int dead, drained;
};
static int iterate(struct pa_simple *p, int block, int *perror) {
assert(p && p->context && p->mainloop);
if (!block && !pa_context_is_pending(p->context))
return 0;
do {
if (pa_context_is_dead(p->context) || (p->stream && pa_stream_is_dead(p->stream))) {
if (perror)
*perror = pa_context_errno(p->context);
return -1;
}
if (pa_mainloop_iterate(p->mainloop, 1, NULL) < 0) {
if (perror)
*perror = PA_ERROR_INTERNAL;
return -1;
}
} while (pa_context_is_pending(p->context));
return 0;
}
struct pa_simple* pa_simple_new(
const char *server,
const char *name,
enum pa_stream_direction dir,
const char *dev,
const char *stream_name,
const struct pa_sample_spec *ss,
const struct pa_buffer_attr *attr,
int *perror) {
struct pa_simple *p;
int error = PA_ERROR_INTERNAL;
assert(ss);
p = malloc(sizeof(struct pa_simple));
assert(p);
p->context = NULL;
p->stream = NULL;
p->mainloop = pa_mainloop_new();
assert(p->mainloop);
p->dead = 0;
if (!(p->context = pa_context_new(pa_mainloop_get_api(p->mainloop), name)))
goto fail;
if (pa_context_connect(p->context, server, NULL, NULL) < 0) {
error = pa_context_errno(p->context);
goto fail;
}
/* Wait until the context is ready */
while (!pa_context_is_ready(p->context)) {
if (iterate(p, 1, &error) < 0)
goto fail;
}
if (!(p->stream = pa_stream_new(p->context, dir, dev, stream_name, ss, attr, NULL, NULL)))
goto fail;
/* Wait until the stream is ready */
while (!pa_stream_is_ready(p->stream)) {
if (iterate(p, 1, &error) < 0)
goto fail;
}
return p;
fail:
if (perror)
*perror = error;
pa_simple_free(p);
return NULL;
}
void pa_simple_free(struct pa_simple *s) {
assert(s);
if (s->stream)
pa_stream_free(s->stream);
if (s->context)
pa_context_free(s->context);
if (s->mainloop)
pa_mainloop_free(s->mainloop);
free(s);
}
int pa_simple_write(struct pa_simple *p, const void*data, size_t length, int *perror) {
assert(p && data);
while (length > 0) {
size_t l;
while (!(l = pa_stream_writable_size(p->stream)))
if (iterate(p, 1, perror) < 0)
return -1;
if (l > length)
l = length;
pa_stream_write(p->stream, data, l);
data += l;
length -= l;
}
/* Make sure that no data is pending for write */
if (iterate(p, 0, perror) < 0)
return -1;
return 0;
}
int pa_simple_read(struct pa_simple *s, void*data, size_t length, int *perror) {
assert(0);
}
static void drain_complete(struct pa_stream *s, void *userdata) {
struct pa_simple *p = userdata;
assert(s && p);
p->drained = 1;
}
int pa_simple_drain(struct pa_simple *p, int *perror) {
assert(p);
p->drained = 0;
pa_stream_drain(p->stream, drain_complete, p);
while (!p->drained) {
if (iterate(p, 1, perror) < 0) {
pa_stream_drain(p->stream, NULL, NULL);
return -1;
}
}
return 0;
}
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