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     q = pa_memblock_acquire(chunk->memblock);
  40     for (e = (char*) q + chunk->index, n = 0; n < chunk->length; n++, e++)
  41         printf("%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     printf("FIXED >");
  52     pa_memblockq_peek_fixed_size(bq, 64, &out);
  53     dump_chunk(&out);
  54     pa_memblock_unref(out.memblock);
  55     printf("<\n");
  56
  57     /* Then let's dump the queue manually */
  58     printf("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     printf("<\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
  80     pa_log_set_level(PA_LOG_DEBUG);
  81
  82     p = pa_mempool_new(FALSE, 0);
  83
  84     silence.memblock = pa_memblock_new_fixed(p, (char*) "__", 2, 1);
  85     assert(silence.memblock);
  86     silence.index = 0;
  87     silence.length = pa_memblock_get_length(silence.memblock);
  88
  89     bq = pa_memblockq_new(0, 200, 10, 2, 4, 4, 40, &silence);
  90     assert(bq);
  91
  92     chunk1.memblock = pa_memblock_new_fixed(p, (char*) "11", 2, 1);
  93     chunk1.index = 0;
  94     chunk1.length = 2;
  95     assert(chunk1.memblock);
  96
  97     chunk2.memblock = pa_memblock_new_fixed(p, (char*) "XX22", 4, 1);
  98     chunk2.index = 2;
  99     chunk2.length = 2;
 100     assert(chunk2.memblock);
 101
 102     chunk3.memblock = pa_memblock_new_fixed(p, (char*) "3333", 4, 1);
 103     chunk3.index = 0;
 104     chunk3.length = 4;
 105     assert(chunk3.memblock);
 106
 107     chunk4.memblock = pa_memblock_new_fixed(p, (char*) "44444444", 8, 1);
 108     chunk4.index = 0;
 109     chunk4.length = 8;
 110     assert(chunk4.memblock);
 111
 112     ret = pa_memblockq_push(bq, &chunk1);
 113     assert(ret == 0);
 114
 115     ret = pa_memblockq_push(bq, &chunk2);
 116     assert(ret == 0);
 117
 118     ret = pa_memblockq_push(bq, &chunk3);
 119     assert(ret == 0);
 120
 121     ret = pa_memblockq_push(bq, &chunk4);
 122     assert(ret == 0);
 123
 124     pa_memblockq_seek(bq, -6, 0, TRUE);
 125     ret = pa_memblockq_push(bq, &chunk3);
 126     assert(ret == 0);
 127
 128     pa_memblockq_seek(bq, -2, 0, TRUE);
 129     ret = pa_memblockq_push(bq, &chunk1);
 130     assert(ret == 0);
 131
 132     pa_memblockq_seek(bq, -10, 0, TRUE);
 133     ret = pa_memblockq_push(bq, &chunk4);
 134     assert(ret == 0);
 135
 136     pa_memblockq_seek(bq, 10, 0, TRUE);
 137
 138     ret = pa_memblockq_push(bq, &chunk1);
 139     assert(ret == 0);
 140
 141     pa_memblockq_seek(bq, -6, 0, TRUE);
 142     ret = pa_memblockq_push(bq, &chunk2);
 143     assert(ret == 0);
 144
 145     /* Test splitting */
 146     pa_memblockq_seek(bq, -12, 0, TRUE);
 147     ret = pa_memblockq_push(bq, &chunk1);
 148     assert(ret == 0);
 149
 150     pa_memblockq_seek(bq, 20, 0, TRUE);
 151
 152     /* Test merging */
 153     ret = pa_memblockq_push(bq, &chunk3);
 154     assert(ret == 0);
 155     pa_memblockq_seek(bq, -2, 0, TRUE);
 156
 157     chunk3.index += 2;
 158     chunk3.length -= 2;
 159     ret = pa_memblockq_push(bq, &chunk3);
 160     assert(ret == 0);
 161
 162     pa_memblockq_seek(bq, 30, PA_SEEK_RELATIVE, TRUE);
 163
 164     dump(bq);
 165
 166     pa_memblockq_rewind(bq, 52);
 167
 168     dump(bq);
 169
 170     pa_memblockq_free(bq);
 171     pa_memblock_unref(silence.memblock);
 172     pa_memblock_unref(chunk1.memblock);
 173     pa_memblock_unref(chunk2.memblock);
 174     pa_memblock_unref(chunk3.memblock);
 175     pa_memblock_unref(chunk4.memblock);
 176
 177     pa_mempool_free(p);
 178
 179     return 0;
 180 }