--- /dev/null
+/***
+ This file is part of PulseAudio.
+
+ PulseAudio 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 2.1 of the License,
+ or (at your option) any later version.
+
+ PulseAudio 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 PulseAudio; 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 <signal.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <pulse/pulseaudio.h>
+#include <pulse/mainloop.h>
+
+#define NSTREAMS 16
+#define NTESTS 1000
+#define SAMPLE_HZ 44100
+
+static pa_context *context = NULL;
+static pa_stream *streams[NSTREAMS];
+static pa_threaded_mainloop *mainloop = NULL;
+
+static const pa_sample_spec sample_spec = {
+ .format = PA_SAMPLE_FLOAT32,
+ .rate = SAMPLE_HZ,
+ .channels = 1
+};
+
+static void context_state_callback(pa_context *c, void *userdata);
+
+static void connect(const char *name, int *try) {
+ int ret;
+ pa_mainloop_api *api;
+
+ /* Set up a new main loop */
+ mainloop = pa_threaded_mainloop_new();
+ assert(mainloop);
+
+ api = pa_threaded_mainloop_get_api(mainloop);
+ context = pa_context_new(api, name);
+ assert(context);
+
+ pa_context_set_state_callback(context, context_state_callback, try);
+
+ /* Connect the context */
+ if (pa_context_connect(context, NULL, 0, NULL) < 0) {
+ fprintf(stderr, "pa_context_connect() failed.\n");
+ abort();
+ }
+
+ ret = pa_threaded_mainloop_start(mainloop);
+ assert(ret == 0);
+}
+
+static void disconnect(void) {
+ int i;
+
+ assert(mainloop);
+ assert(context);
+
+ pa_threaded_mainloop_lock(mainloop);
+
+ for (i = 0; i < NSTREAMS; i++)
+ if (streams[i]) {
+ pa_stream_disconnect(streams[i]);
+ pa_stream_unref(streams[i]);
+ streams[i] = NULL;
+ }
+
+ pa_context_disconnect(context);
+ context = NULL;
+
+ pa_threaded_mainloop_unlock(mainloop);
+ pa_threaded_mainloop_stop(mainloop);
+ pa_threaded_mainloop_free(mainloop);
+ mainloop = NULL;
+}
+
+static const pa_buffer_attr buffer_attr = {
+ .maxlength = SAMPLE_HZ * sizeof(float) * NSTREAMS,
+ .tlength = (uint32_t) -1,
+ .prebuf = 0, /* Setting prebuf to 0 guarantees us the the streams will run synchronously, no matter what */
+ .minreq = (uint32_t) -1,
+ .fragsize = 0
+};
+
+static void stream_write_callback(pa_stream *stream, size_t nbytes, void *userdata) {
+ char silence[8192];
+
+ memset(silence, 0, sizeof(silence));
+
+ while (nbytes) {
+ int n = MIN(sizeof(silence), nbytes);
+ pa_stream_write(stream, silence, n, NULL, 0, 0);
+ nbytes -= n;
+ }
+}
+
+static void stream_state_callback(pa_stream *s, void *userdata) {
+ assert(s);
+
+ switch (pa_stream_get_state(s)) {
+ case PA_STREAM_UNCONNECTED:
+ case PA_STREAM_CREATING:
+ case PA_STREAM_TERMINATED:
+ case PA_STREAM_READY:
+ break;
+
+ default:
+ case PA_STREAM_FAILED:
+ fprintf(stderr, "Stream error: %s\n", pa_strerror(pa_context_errno(pa_stream_get_context(s))));
+ abort();
+ }
+}
+
+static void context_state_callback(pa_context *c, void *userdata) {
+ int *try;
+
+ assert(c);
+ assert(userdata);
+
+ try = (int*)userdata;
+
+ switch (pa_context_get_state(c)) {
+ case PA_CONTEXT_CONNECTING:
+ case PA_CONTEXT_AUTHORIZING:
+ case PA_CONTEXT_SETTING_NAME:
+ break;
+
+ case PA_CONTEXT_READY: {
+
+ int i;
+ fprintf(stderr, "Connection (%d of %d) established.\n", (*try)+1, NTESTS);
+
+ for (i = 0; i < NSTREAMS; i++) {
+ char name[64];
+
+ snprintf(name, sizeof(name), "stream #%i", i);
+ streams[i] = pa_stream_new(c, name, &sample_spec, NULL);
+ assert(streams[i]);
+ pa_stream_set_state_callback(streams[i], stream_state_callback, NULL);
+ pa_stream_set_write_callback(streams[i], stream_write_callback, NULL);
+ pa_stream_connect_playback(streams[i], NULL, &buffer_attr, 0, NULL, NULL);
+ }
+
+ break;
+ }
+
+ case PA_CONTEXT_TERMINATED:
+ fprintf(stderr, "Connection terminated.\n");
+ pa_context_unref(context);
+ context = NULL;
+ break;
+
+ case PA_CONTEXT_FAILED:
+ default:
+ fprintf(stderr, "Context error: %s\n", pa_strerror(pa_context_errno(c)));
+ abort();
+ }
+}
+
+int main(int argc, char *argv[]) {
+ int i;
+
+ for (i = 0; i < NSTREAMS; i++)
+ streams[i] = NULL;
+
+ for (i = 0; i < NTESTS; i++) {
+ connect(argv[0], &i);
+ usleep(random() % 500000);
+ disconnect();
+ usleep(random() % 500000);
+ }
+
+ fprintf(stderr, "Done.\n");
+
+ return 0;
+}