code.delx.au - pulseaudio/blob - src/tests/memblockq-test.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 <stdlib.h>
  25 #include <stdio.h>
  26 #include <signal.h>
  27
  28 #include <pulsecore/memblockq.h>
  29 #include <pulsecore/log.h>
  30 #include <pulsecore/macro.h>
  31
  32 static void dump_chunk(const pa_memchunk *chunk) {
  33     size_t n;
  34     void *q;
  35     char *e;
  36
  37     pa_assert(chunk);
  38
  39     q = pa_memblock_acquire(chunk->memblock);
  40     for (e = (char*) q + chunk->index, n = 0; n < chunk->length; n++, e++)
  41         fprintf(stderr, "%c", *e);
  42     pa_memblock_release(chunk->memblock);
  43 }
  44
  45 static void dump(pa_memblockq *bq) {
  46     pa_memchunk out;
  47
  48     pa_assert(bq);
  49
  50     /* First let's dump this as fixed block */
  51     fprintf(stderr, "FIXED >");
  52     pa_memblockq_peek_fixed_size(bq, 64, &out);
  53     dump_chunk(&out);
  54     pa_memblock_unref(out.memblock);
  55     fprintf(stderr, "<\n");
  56
  57     /* Then let's dump the queue manually */
  58     fprintf(stderr, "MANUAL>");
  59
  60     for (;;) {
  61         if (pa_memblockq_peek(bq, &out) < 0)
  62             break;
  63
  64         dump_chunk(&out);
  65         pa_memblock_unref(out.memblock);
  66         pa_memblockq_drop(bq, out.length);
  67     }
  68
  69     fprintf(stderr, "<\n");
  70 }
  71
  72 int main(int argc, char *argv[]) {
  73     int ret;
  74
  75     pa_mempool *p;
  76     pa_memblockq *bq;
  77     pa_memchunk chunk1, chunk2, chunk3, chunk4;
  78     pa_memchunk silence;
  79     pa_sample_spec ss = {
  80         .format = PA_SAMPLE_S16LE,
  81         .rate = 48000,
  82         .channels = 1
  83     };
  84
  85     pa_log_set_level(PA_LOG_DEBUG);
  86
  87     p = pa_mempool_new(FALSE, 0);
  88
  89     pa_assert_se(silence.memblock = pa_memblock_new_fixed(p, (char*) "__", 2, 1));
  90     silence.index = 0;
  91     silence.length = pa_memblock_get_length(silence.memblock);
  92
  93     pa_assert_se(bq = pa_memblockq_new("test memblockq", 0, 200, 10, &ss, 4, 4, 40, &silence));
  94
  95     pa_assert_se(chunk1.memblock = pa_memblock_new_fixed(p, (char*) "11", 2, 1));
  96     chunk1.index = 0;
  97     chunk1.length = 2;
  98
  99     pa_assert_se(chunk2.memblock = pa_memblock_new_fixed(p, (char*) "XX22", 4, 1));
 100     chunk2.index = 2;
 101     chunk2.length = 2;
 102
 103     pa_assert_se(chunk3.memblock = pa_memblock_new_fixed(p, (char*) "3333", 4, 1));
 104     chunk3.index = 0;
 105     chunk3.length = 4;
 106
 107     pa_assert_se(chunk4.memblock = pa_memblock_new_fixed(p, (char*) "44444444", 8, 1));
 108     chunk4.index = 0;
 109     chunk4.length = 8;
 110
 111     ret = pa_memblockq_push(bq, &chunk1);
 112     assert(ret == 0);
 113
 114     ret = pa_memblockq_push(bq, &chunk2);
 115     assert(ret == 0);
 116
 117     ret = pa_memblockq_push(bq, &chunk3);
 118     assert(ret == 0);
 119
 120     ret = pa_memblockq_push(bq, &chunk4);
 121     assert(ret == 0);
 122
 123     pa_memblockq_seek(bq, -6, 0, TRUE);
 124     ret = pa_memblockq_push(bq, &chunk3);
 125     assert(ret == 0);
 126
 127     pa_memblockq_seek(bq, -2, 0, TRUE);
 128     ret = pa_memblockq_push(bq, &chunk1);
 129     assert(ret == 0);
 130
 131     pa_memblockq_seek(bq, -10, 0, TRUE);
 132     ret = pa_memblockq_push(bq, &chunk4);
 133     assert(ret == 0);
 134
 135     pa_memblockq_seek(bq, 10, 0, TRUE);
 136
 137     ret = pa_memblockq_push(bq, &chunk1);
 138     assert(ret == 0);
 139
 140     pa_memblockq_seek(bq, -6, 0, TRUE);
 141     ret = pa_memblockq_push(bq, &chunk2);
 142     assert(ret == 0);
 143
 144     /* Test splitting */
 145     pa_memblockq_seek(bq, -12, 0, TRUE);
 146     ret = pa_memblockq_push(bq, &chunk1);
 147     assert(ret == 0);
 148
 149     pa_memblockq_seek(bq, 20, 0, TRUE);
 150
 151     /* Test merging */
 152     ret = pa_memblockq_push(bq, &chunk3);
 153     assert(ret == 0);
 154     pa_memblockq_seek(bq, -2, 0, TRUE);
 155
 156     chunk3.index += 2;
 157     chunk3.length -= 2;
 158     ret = pa_memblockq_push(bq, &chunk3);
 159     assert(ret == 0);
 160
 161     pa_memblockq_seek(bq, 30, PA_SEEK_RELATIVE, TRUE);
 162
 163     dump(bq);
 164
 165     pa_memblockq_rewind(bq, 52);
 166
 167     dump(bq);
 168
 169     pa_memblockq_free(bq);
 170     pa_memblock_unref(silence.memblock);
 171     pa_memblock_unref(chunk1.memblock);
 172     pa_memblock_unref(chunk2.memblock);
 173     pa_memblock_unref(chunk3.memblock);
 174     pa_memblock_unref(chunk4.memblock);
 175
 176     pa_mempool_free(p);
 177
 178     return 0;
 179 }