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 <assert.h>
  26 #include <stdio.h>
  27 #include <signal.h>
  28
  29 #include <pulsecore/memblockq.h>
  30 #include <pulsecore/log.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     printf("[");
  40
  41     q = pa_memblock_acquire(chunk->memblock);
  42     for (e = (char*) q + chunk->index, n = 0; n < chunk->length; n++, e++)
  43         printf("%c", *e);
  44     pa_memblock_release(chunk->memblock);
  45
  46     printf("]");
  47 }
  48
  49 static void dump(pa_memblockq *bq) {
  50     pa_memchunk out;
  51
  52     pa_assert(bq);
  53
  54     /* First let's dump this as fixed block */
  55     printf("FIXED >");
  56     pa_memblockq_peek_fixed_size(bq, 64, &out);
  57     dump_chunk(&out);
  58     pa_memblock_unref(out.memblock);
  59     printf("<\n");
  60
  61     /* Then let's dump the queue manually */
  62     printf("MANUAL>");
  63
  64     for (;;) {
  65         if (pa_memblockq_peek(bq, &out) < 0)
  66             break;
  67
  68         dump_chunk(&out);
  69         pa_memblock_unref(out.memblock);
  70         pa_memblockq_drop(bq, out.length);
  71     }
  72
  73     printf("<\n");
  74 }
  75
  76 int main(int argc, char *argv[]) {
  77     int ret;
  78
  79     pa_mempool *p;
  80     pa_memblockq *bq;
  81     pa_memchunk chunk1, chunk2, chunk3, chunk4;
  82     pa_memchunk silence;
  83
  84     pa_log_set_level(PA_LOG_DEBUG);
  85
  86     p = pa_mempool_new(FALSE, 0);
  87
  88     silence.memblock = pa_memblock_new_fixed(p, (char*)  "__", 2, 1);
  89     assert(silence.memblock);
  90     silence.index = 0;
  91     silence.length = pa_memblock_get_length(silence.memblock);
  92
  93     bq = pa_memblockq_new(0, 200, 10, 2, 4, 4, 40, &silence);
  94     assert(bq);
  95
  96     chunk1.memblock = pa_memblock_new_fixed(p, (char*) "11", 2, 1);
  97     chunk1.index = 0;
  98     chunk1.length = 2;
  99     assert(chunk1.memblock);
 100
 101     chunk2.memblock = pa_memblock_new_fixed(p, (char*) "XX22", 4, 1);
 102     chunk2.index = 2;
 103     chunk2.length = 2;
 104     assert(chunk2.memblock);
 105
 106     chunk3.memblock = pa_memblock_new_fixed(p, (char*) "3333", 4, 1);
 107     chunk3.index = 0;
 108     chunk3.length = 4;
 109     assert(chunk3.memblock);
 110
 111     chunk4.memblock = pa_memblock_new_fixed(p, (char*) "44444444", 8, 1);
 112     chunk4.index = 0;
 113     chunk4.length = 8;
 114     assert(chunk4.memblock);
 115
 116     ret = pa_memblockq_push(bq, &chunk1);
 117     assert(ret == 0);
 118
 119     ret = pa_memblockq_push(bq, &chunk2);
 120     assert(ret == 0);
 121
 122     ret = pa_memblockq_push(bq, &chunk3);
 123     assert(ret == 0);
 124
 125     ret = pa_memblockq_push(bq, &chunk4);
 126     assert(ret == 0);
 127
 128     pa_memblockq_seek(bq, -6, 0, TRUE);
 129     ret = pa_memblockq_push(bq, &chunk3);
 130     assert(ret == 0);
 131
 132     pa_memblockq_seek(bq, -2, 0, TRUE);
 133     ret = pa_memblockq_push(bq, &chunk1);
 134     assert(ret == 0);
 135
 136     pa_memblockq_seek(bq, -10, 0, TRUE);
 137     ret = pa_memblockq_push(bq, &chunk4);
 138     assert(ret == 0);
 139
 140     pa_memblockq_seek(bq, 10, 0, TRUE);
 141
 142     ret = pa_memblockq_push(bq, &chunk1);
 143     assert(ret == 0);
 144
 145     pa_memblockq_seek(bq, -6, 0, TRUE);
 146     ret = pa_memblockq_push(bq, &chunk2);
 147     assert(ret == 0);
 148
 149     /* Test splitting */
 150     pa_memblockq_seek(bq, -12, 0, TRUE);
 151     ret = pa_memblockq_push(bq, &chunk1);
 152     assert(ret == 0);
 153
 154     pa_memblockq_seek(bq, 20, 0, TRUE);
 155
 156     /* Test merging */
 157     ret = pa_memblockq_push(bq, &chunk3);
 158     assert(ret == 0);
 159     pa_memblockq_seek(bq, -2, 0, TRUE);
 160
 161     chunk3.index += 2;
 162     chunk3.length -= 2;
 163     ret = pa_memblockq_push(bq, &chunk3);
 164     assert(ret == 0);
 165
 166     pa_memblockq_seek(bq, 30, PA_SEEK_RELATIVE, TRUE);
 167
 168     dump(bq);
 169
 170     pa_memblockq_rewind(bq, 52);
 171
 172     dump(bq);
 173
 174     pa_memblockq_free(bq);
 175     pa_memblock_unref(silence.memblock);
 176     pa_memblock_unref(chunk1.memblock);
 177     pa_memblock_unref(chunk2.memblock);
 178     pa_memblock_unref(chunk3.memblock);
 179     pa_memblock_unref(chunk4.memblock);
 180
 181     pa_mempool_free(p);
 182
 183     return 0;
 184 }