src/tests/flist-test.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of PulseAudio.
   5
   6   PulseAudio is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU Lesser General Public License as published
   8   by the Free Software Foundation; either version 2 of the License,
   9   or (at your option) any later version.
  10
  11   PulseAudio is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with PulseAudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <assert.h>
  27 #include <stdlib.h>
  28 #include <unistd.h>
  29
  30 #include <pulse/util.h>
  31 #include <pulse/xmalloc.h>
  32 #include <pulsecore/flist.h>
  33 #include <pulsecore/thread.h>
  34 #include <pulsecore/log.h>
  35 #include <pulsecore/core-util.h>
  36
  37 #define THREADS_MAX 20
  38
  39 static pa_flist *flist;
  40 static int quit = 0;
  41
  42 static void spin(void) {
  43     int k;
  44
  45     /* Spin a little */
  46     k = rand() % 10000;
  47     for (; k > 0; k--)
  48         pa_thread_yield();
  49 }
  50
  51 static void thread_func(void *data) {
  52     char *s = data;
  53     int n = 0;
  54     int b = 1;
  55
  56     while (!quit) {
  57         char *text;
  58
  59         /* Allocate some memory, if possible take it from the flist */
  60         if (b && (text = pa_flist_pop(flist)))
  61             pa_log("%s: popped '%s'", s, text);
  62         else {
  63             text = pa_sprintf_malloc("Block %i, allocated by %s", n++, s);
  64             pa_log("%s: allocated '%s'", s, text);
  65         }
  66
  67         b = !b;
  68
  69         spin();
  70
  71         /* Give it back to the flist if possible */
  72         if (pa_flist_push(flist, text) < 0) {
  73             pa_log("%s: failed to push back '%s'", s, text);
  74             pa_xfree(text);
  75         } else
  76             pa_log("%s: pushed", s);
  77
  78         spin();
  79     }
  80
  81     if (pa_flist_push(flist, s) < 0)
  82         pa_xfree(s);
  83 }
  84
  85 int main(int argc, char* argv[]) {
  86     pa_thread *threads[THREADS_MAX];
  87     int i;
  88
  89     flist = pa_flist_new(0);
  90
  91     for (i = 0; i < THREADS_MAX; i++) {
  92         threads[i] = pa_thread_new(thread_func, pa_sprintf_malloc("Thread #%i", i+1));
  93         assert(threads[i]);
  94     }
  95
  96     pa_msleep(60000);
  97     quit = 1;
  98
  99     for (i = 0; i < THREADS_MAX; i++)
 100         pa_thread_free(threads[i]);
 101
 102     pa_flist_free(flist, pa_xfree);
 103
 104     return 0;
 105 }