code.delx.au - pulseaudio/blob - src/tests/connect-stress.c

   1 /***
   2   This file is part of PulseAudio.
   3
   4   PulseAudio is free software; you can redistribute it and/or modify
   5   it under the terms of the GNU Lesser General Public License as published
   6   by the Free Software Foundation; either version 2.1 of the License,
   7   or (at your option) any later version.
   8
   9   PulseAudio is distributed in the hope that it will be useful, but
  10   WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12   General Public License for more details.
  13
  14   You should have received a copy of the GNU Lesser General Public License
  15   along with PulseAudio; if not, write to the Free Software
  16   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  17   USA.
  18 ***/
  19
  20 #ifdef HAVE_CONFIG_H
  21 #include <config.h>
  22 #endif
  23
  24 #include <signal.h>
  25 #include <string.h>
  26 #include <errno.h>
  27 #include <unistd.h>
  28 #include <assert.h>
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31
  32 #include <check.h>
  33
  34 #include <pulse/pulseaudio.h>
  35 #include <pulse/mainloop.h>
  36
  37 #include <pulsecore/sink.h>
  38
  39 /* Set the number of streams such that it allows two simultaneous instances of
  40  * connect-stress to be run and not go above the max limit for streams-per-sink.
  41  * This leaves enough room for a couple other streams from regular system usage,
  42  * which makes a non-error abort less likely (although still easily possible of
  43  * playing >=3 streams outside of the test - including internal loopback, rtp,
  44  * combine, remap streams etc.) */
  45 #define NSTREAMS ((PA_MAX_INPUTS_PER_SINK/2) - 1)
  46 #define NTESTS 1000
  47 #define SAMPLE_HZ 44100
  48
  49 static pa_context *context = NULL;
  50 static pa_stream *streams[NSTREAMS];
  51 static pa_threaded_mainloop *mainloop = NULL;
  52 static char *bname;
  53
  54 static const pa_sample_spec sample_spec = {
  55     .format = PA_SAMPLE_FLOAT32,
  56     .rate = SAMPLE_HZ,
  57     .channels = 1
  58 };
  59
  60 static void context_state_callback(pa_context *c, void *userdata);
  61
  62 static void connect(const char *name, int *try) {
  63     int ret;
  64     pa_mainloop_api *api;
  65
  66     /* Set up a new main loop */
  67     mainloop = pa_threaded_mainloop_new();
  68     fail_unless(mainloop != NULL);
  69
  70     api = pa_threaded_mainloop_get_api(mainloop);
  71     context = pa_context_new(api, name);
  72     fail_unless(context != NULL);
  73
  74     pa_context_set_state_callback(context, context_state_callback, try);
  75
  76     /* Connect the context */
  77     if (pa_context_connect(context, NULL, 0, NULL) < 0) {
  78         fprintf(stderr, "pa_context_connect() failed.\n");
  79         fail();
  80     }
  81
  82     ret = pa_threaded_mainloop_start(mainloop);
  83     fail_unless(ret == 0);
  84 }
  85
  86 static void disconnect(void) {
  87     int i;
  88
  89     fail_unless(mainloop != NULL);
  90     fail_unless(context != NULL);
  91
  92     pa_threaded_mainloop_lock(mainloop);
  93
  94     for (i = 0; i < NSTREAMS; i++)
  95         if (streams[i]) {
  96             pa_stream_disconnect(streams[i]);
  97             pa_stream_unref(streams[i]);
  98             streams[i] = NULL;
  99         }
 100
 101     pa_context_disconnect(context);
 102     context = NULL;
 103
 104     pa_threaded_mainloop_unlock(mainloop);
 105     pa_threaded_mainloop_stop(mainloop);
 106     pa_threaded_mainloop_free(mainloop);
 107     mainloop = NULL;
 108 }
 109
 110 static const pa_buffer_attr buffer_attr = {
 111     .maxlength = SAMPLE_HZ * sizeof(float) * NSTREAMS,
 112     .tlength = (uint32_t) -1,
 113     .prebuf = 0, /* Setting prebuf to 0 guarantees us the streams will run synchronously, no matter what */
 114     .minreq = (uint32_t) -1,
 115     .fragsize = 0
 116 };
 117
 118 static void stream_write_callback(pa_stream *stream, size_t nbytes, void *userdata) {
 119     char silence[8192];
 120
 121     memset(silence, 0, sizeof(silence));
 122
 123     while (nbytes) {
 124         int n = PA_MIN(sizeof(silence), nbytes);
 125         pa_stream_write(stream, silence, n, NULL, 0, 0);
 126         nbytes -= n;
 127     }
 128 }
 129
 130 static void stream_state_callback(pa_stream *s, void *userdata) {
 131     fail_unless(s != NULL);
 132
 133     switch (pa_stream_get_state(s)) {
 134         case PA_STREAM_UNCONNECTED:
 135         case PA_STREAM_CREATING:
 136         case PA_STREAM_TERMINATED:
 137         case PA_STREAM_READY:
 138             break;
 139
 140         default:
 141         case PA_STREAM_FAILED:
 142             fprintf(stderr, "Stream error: %s\n", pa_strerror(pa_context_errno(pa_stream_get_context(s))));
 143             fail();
 144     }
 145 }
 146
 147 static void context_state_callback(pa_context *c, void *userdata) {
 148     int *try;
 149
 150     fail_unless(c != NULL);
 151     fail_unless(userdata != NULL);
 152
 153     try = (int*)userdata;
 154
 155     switch (pa_context_get_state(c)) {
 156         case PA_CONTEXT_CONNECTING:
 157         case PA_CONTEXT_AUTHORIZING:
 158         case PA_CONTEXT_SETTING_NAME:
 159             break;
 160
 161         case PA_CONTEXT_READY: {
 162
 163             int i;
 164             fprintf(stderr, "Connection (%d of %d) established.\n", (*try)+1, NTESTS);
 165
 166             for (i = 0; i < NSTREAMS; i++) {
 167                 char name[64];
 168
 169                 snprintf(name, sizeof(name), "stream #%i", i);
 170                 streams[i] = pa_stream_new(c, name, &sample_spec, NULL);
 171                 fail_unless(streams[i] != NULL);
 172                 pa_stream_set_state_callback(streams[i], stream_state_callback, NULL);
 173                 pa_stream_set_write_callback(streams[i], stream_write_callback, NULL);
 174                 pa_stream_connect_playback(streams[i], NULL, &buffer_attr, 0, NULL, NULL);
 175             }
 176
 177             break;
 178         }
 179
 180         case PA_CONTEXT_TERMINATED:
 181             fprintf(stderr, "Connection terminated.\n");
 182             pa_context_unref(context);
 183             context = NULL;
 184             break;
 185
 186         case PA_CONTEXT_FAILED:
 187         default:
 188             fprintf(stderr, "Context error: %s\n", pa_strerror(pa_context_errno(c)));
 189             fail();
 190     }
 191 }
 192
 193 START_TEST (connect_stress_test) {
 194     int i;
 195
 196     for (i = 0; i < NSTREAMS; i++)
 197         streams[i] = NULL;
 198
 199     for (i = 0; i < NTESTS; i++) {
 200         connect(bname, &i);
 201         usleep(rand() % 500000);
 202         disconnect();
 203         usleep(rand() % 500000);
 204     }
 205
 206     fprintf(stderr, "Done.\n");
 207 }
 208 END_TEST
 209
 210 int main(int argc, char *argv[]) {
 211     int failed = 0;
 212     Suite *s;
 213     TCase *tc;
 214     SRunner *sr;
 215
 216     bname = argv[0];
 217
 218     s = suite_create("Connect Stress");
 219     tc = tcase_create("connectstress");
 220     tcase_add_test(tc, connect_stress_test);
 221     tcase_set_timeout(tc, 20 * 60);
 222     suite_add_tcase(s, tc);
 223
 224     sr = srunner_create(s);
 225     srunner_run_all(sr, CK_NORMAL);
 226     failed = srunner_ntests_failed(sr);
 227     srunner_free(sr);
 228
 229     return (failed == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
 230 }