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
  30 #include <pulsecore/memblockq.h>
  31 #include <pulsecore/log.h>
  32
  33 int main(int argc, char *argv[]) {
  34     int ret;
  35     pa_memblockq *bq;
  36     pa_memchunk chunk1, chunk2, chunk3, chunk4;
  37     pa_memblock *silence;
  38
  39     pa_log_set_maximal_level(PA_LOG_DEBUG);
  40
  41     silence = pa_memblock_new_fixed((char*)  "__", 2, 1, NULL);
  42     assert(silence);
  43
  44     bq = pa_memblockq_new(0, 40, 10, 2, 4, 4, silence, NULL);
  45     assert(bq);
  46
  47     chunk1.memblock = pa_memblock_new_fixed((char*) "AA", 2, 1, NULL);
  48     chunk1.index = 0;
  49     chunk1.length = 2;
  50     assert(chunk1.memblock);
  51
  52     chunk2.memblock = pa_memblock_new_fixed((char*) "TTBB", 4, 1, NULL);
  53     chunk2.index = 2;
  54     chunk2.length = 2;
  55     assert(chunk2.memblock);
  56
  57     chunk3.memblock = pa_memblock_new_fixed((char*) "ZZZZ", 4, 1, NULL);
  58     chunk3.index = 0;
  59     chunk3.length = 4;
  60     assert(chunk3.memblock);
  61
  62     chunk4.memblock = pa_memblock_new_fixed((char*) "KKKKKKKK", 8, 1, NULL);
  63     chunk4.index = 0;
  64     chunk4.length = 8;
  65     assert(chunk4.memblock);
  66
  67     ret = pa_memblockq_push(bq, &chunk1);
  68     assert(ret == 0);
  69
  70     ret = pa_memblockq_push(bq, &chunk1);
  71     assert(ret == 0);
  72
  73     ret = pa_memblockq_push(bq, &chunk2);
  74     assert(ret == 0);
  75
  76     ret = pa_memblockq_push(bq, &chunk2);
  77     assert(ret == 0);
  78
  79     pa_memblockq_seek(bq, -6, 0);
  80     ret = pa_memblockq_push(bq, &chunk3);
  81     assert(ret == 0);
  82
  83     pa_memblockq_seek(bq, -2, 0);
  84     ret = pa_memblockq_push(bq, &chunk3);
  85     assert(ret == 0);
  86
  87     pa_memblockq_seek(bq, -10, 0);
  88     ret = pa_memblockq_push(bq, &chunk4);
  89     assert(ret == 0);
  90
  91     pa_memblockq_seek(bq, 10, 0);
  92
  93     ret = pa_memblockq_push(bq, &chunk1);
  94     assert(ret == 0);
  95
  96     pa_memblockq_seek(bq, -6, 0);
  97     ret = pa_memblockq_push(bq, &chunk2);
  98     assert(ret == 0);
  99
 100     /* Test splitting */
 101     pa_memblockq_seek(bq, -12, 0);
 102     ret = pa_memblockq_push(bq, &chunk1);
 103     assert(ret == 0);
 104
 105     pa_memblockq_seek(bq, 20, 0);
 106
 107     /* Test merging */
 108     ret = pa_memblockq_push(bq, &chunk3);
 109     assert(ret == 0);
 110     pa_memblockq_seek(bq, -2, 0);
 111
 112     chunk3.index += 2;
 113     chunk3.length -= 2;
 114
 115     ret = pa_memblockq_push(bq, &chunk3);
 116     assert(ret == 0);
 117
 118     printf(">");
 119
 120     pa_memblockq_shorten(bq, 6);
 121
 122     for (;;) {
 123         pa_memchunk out;
 124         char *e;
 125         size_t n;
 126
 127         if (pa_memblockq_peek(bq, &out) < 0)
 128             break;
 129
 130         for (e = (char*) out.memblock->data + out.index, n = 0; n < out.length; n++)
 131             printf("%c", *e);
 132
 133         pa_memblock_unref(out.memblock);
 134         pa_memblockq_drop(bq, &out, out.length);
 135     }
 136
 137     printf("<\n");
 138
 139     pa_memblockq_free(bq);
 140     pa_memblock_unref(silence);
 141     pa_memblock_unref(chunk1.memblock);
 142     pa_memblock_unref(chunk2.memblock);
 143     pa_memblock_unref(chunk3.memblock);
 144     pa_memblock_unref(chunk4.memblock);
 145
 146     return 0;
 147 }