code.delx.au - pulseaudio/blob - src/tests/memblockq-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 <stdlib.h>
  27 #include <assert.h>
  28 #include <stdio.h>
  29 #include <signal.h>
  30
  31 #include <pulsecore/memblockq.h>
  32 #include <pulsecore/log.h>
  33
  34 static void dump(pa_memblockq *bq) {
  35     printf(">");
  36
  37     for (;;) {
  38         pa_memchunk out;
  39         char *e;
  40         size_t n;
  41         void *q;
  42
  43         if (pa_memblockq_peek(bq, &out) < 0)
  44             break;
  45
  46         q = pa_memblock_acquire(out.memblock);
  47         for (e = (char*) q + out.index, n = 0; n < out.length; n++)
  48             printf("%c", *e);
  49         pa_memblock_release(out.memblock);
  50
  51         pa_memblock_unref(out.memblock);
  52         pa_memblockq_drop(bq, out.length);
  53     }
  54
  55     printf("<\n");
  56 }
  57
  58 int main(int argc, char *argv[]) {
  59     int ret;
  60
  61     pa_mempool *p;
  62     pa_memblockq *bq;
  63     pa_memchunk chunk1, chunk2, chunk3, chunk4;
  64     pa_memblock *silence;
  65
  66     pa_log_set_maximal_level(PA_LOG_DEBUG);
  67
  68     p = pa_mempool_new(0);
  69
  70     silence = pa_memblock_new_fixed(p, (char*)  "__", 2, 1);
  71     assert(silence);
  72
  73     bq = pa_memblockq_new(0, 40, 10, 2, 4, 4, 40, silence);
  74     assert(bq);
  75
  76     chunk1.memblock = pa_memblock_new_fixed(p, (char*) "11", 2, 1);
  77     chunk1.index = 0;
  78     chunk1.length = 2;
  79     assert(chunk1.memblock);
  80
  81     chunk2.memblock = pa_memblock_new_fixed(p, (char*) "XX22", 4, 1);
  82     chunk2.index = 2;
  83     chunk2.length = 2;
  84     assert(chunk2.memblock);
  85
  86     chunk3.memblock = pa_memblock_new_fixed(p, (char*) "3333", 4, 1);
  87     chunk3.index = 0;
  88     chunk3.length = 4;
  89     assert(chunk3.memblock);
  90
  91     chunk4.memblock = pa_memblock_new_fixed(p, (char*) "44444444", 8, 1);
  92     chunk4.index = 0;
  93     chunk4.length = 8;
  94     assert(chunk4.memblock);
  95
  96     ret = pa_memblockq_push(bq, &chunk1);
  97     assert(ret == 0);
  98
  99     ret = pa_memblockq_push(bq, &chunk2);
 100     assert(ret == 0);
 101
 102     ret = pa_memblockq_push(bq, &chunk3);
 103     assert(ret == 0);
 104
 105     ret = pa_memblockq_push(bq, &chunk4);
 106     assert(ret == 0);
 107
 108     pa_memblockq_seek(bq, -6, 0);
 109     ret = pa_memblockq_push(bq, &chunk3);
 110     assert(ret == 0);
 111
 112     pa_memblockq_seek(bq, -2, 0);
 113     ret = pa_memblockq_push(bq, &chunk1);
 114     assert(ret == 0);
 115
 116     pa_memblockq_seek(bq, -10, 0);
 117     ret = pa_memblockq_push(bq, &chunk4);
 118     assert(ret == 0);
 119
 120     pa_memblockq_seek(bq, 10, 0);
 121
 122     ret = pa_memblockq_push(bq, &chunk1);
 123     assert(ret == 0);
 124
 125     pa_memblockq_seek(bq, -6, 0);
 126     ret = pa_memblockq_push(bq, &chunk2);
 127     assert(ret == 0);
 128
 129     /* Test splitting */
 130     pa_memblockq_seek(bq, -12, 0);
 131     ret = pa_memblockq_push(bq, &chunk1);
 132     assert(ret == 0);
 133
 134     pa_memblockq_seek(bq, 20, 0);
 135
 136     /* Test merging */
 137     ret = pa_memblockq_push(bq, &chunk3);
 138     assert(ret == 0);
 139     pa_memblockq_seek(bq, -2, 0);
 140
 141     chunk3.index += 2;
 142     chunk3.length -= 2;
 143     ret = pa_memblockq_push(bq, &chunk3);
 144     assert(ret == 0);
 145
 146     pa_memblockq_seek(bq, 30, PA_SEEK_RELATIVE);
 147
 148     dump(bq);
 149
 150     pa_memblockq_rewind(bq, 52);
 151
 152     dump(bq);
 153
 154     pa_memblockq_free(bq);
 155     pa_memblock_unref(silence);
 156     pa_memblock_unref(chunk1.memblock);
 157     pa_memblock_unref(chunk2.memblock);
 158     pa_memblock_unref(chunk3.memblock);
 159     pa_memblock_unref(chunk4.memblock);
 160
 161     pa_mempool_free(p);
 162
 163     return 0;
 164 }