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