static void mmap_fill_memblocks(struct userdata *u, unsigned n) {
pa_assert(u);
pa_assert(u->out_mmap_memblocks);
/* pa_log("Mmmap writing %u blocks", n); */
while (n > 0) {
pa_memchunk chunk;
if (u->out_mmap_memblocks[u->out_mmap_current])
pa_memblock_unref_fixed(u->out_mmap_memblocks[u->out_mmap_current]);
chunk.memblock = u->out_mmap_memblocks[u->out_mmap_current] =
pa_memblock_new_fixed(
u->core->mempool,
(uint8_t*) u->out_mmap + u->out_fragment_size * u->out_mmap_current,
u->out_fragment_size,
1);
chunk.length = pa_memblock_get_length(chunk.memblock);
chunk.index = 0;
pa_sink_render_into_full(u->sink, &chunk);
u->out_mmap_current++;
while (u->out_mmap_current >= u->out_nfrags)
u->out_mmap_current -= u->out_nfrags;
n--;
}
}
static void mmap_post_memblocks(struct userdata *u, unsigned n) {
pa_assert(u);
pa_assert(u->in_mmap_memblocks);
/* pa_log("Mmmap reading %u blocks", n); */
while (n > 0) {
pa_memchunk chunk;
if (!u->in_mmap_memblocks[u->in_mmap_current]) {
chunk.memblock = u->in_mmap_memblocks[u->in_mmap_current] =
pa_memblock_new_fixed(
u->core->mempool,
(uint8_t*) u->in_mmap + u->in_fragment_size*u->in_mmap_current,
u->in_fragment_size,
1);
chunk.length = pa_memblock_get_length(chunk.memblock);
chunk.index = 0;
pa_source_post(u->source, &chunk);
}
u->in_mmap_current++;
while (u->in_mmap_current >= u->in_nfrags)
u->in_mmap_current -= u->in_nfrags;
n--;
}
}
int main(int argc, char *argv[]) {
pa_mempool *pool_a, *pool_b, *pool_c;
unsigned id_a, id_b, id_c;
pa_memexport *export_a, *export_b;
pa_memimport *import_b, *import_c;
pa_memblock *mb_a, *mb_b, *mb_c;
int r, i;
pa_memblock* blocks[5];
uint32_t id, shm_id;
size_t offset, size;
char *x;
const char txt[] = "This is a test!";
pool_a = pa_mempool_new(1);
pool_b = pa_mempool_new(1);
pool_c = pa_mempool_new(1);
pa_mempool_get_shm_id(pool_a, &id_a);
pa_mempool_get_shm_id(pool_b, &id_b);
pa_mempool_get_shm_id(pool_c, &id_c);
pa_assert(pool_a && pool_b && pool_c);
blocks[0] = pa_memblock_new_fixed(pool_a, (void*) txt, sizeof(txt), 1);
blocks[1] = pa_memblock_new(pool_a, sizeof(txt));
x = pa_memblock_acquire(blocks[1]);
snprintf(x, pa_memblock_get_length(blocks[1]), "%s", txt);
pa_memblock_release(blocks[1]);
blocks[2] = pa_memblock_new_pool(pool_a, sizeof(txt));
x = pa_memblock_acquire(blocks[2]);
snprintf(x, pa_memblock_get_length(blocks[2]), "%s", txt);
pa_memblock_release(blocks[2]);
blocks[3] = pa_memblock_new_malloced(pool_a, pa_xstrdup(txt), sizeof(txt));
blocks[4] = NULL;
for (i = 0; blocks[i]; i++) {
printf("Memory block %u\n", i);
mb_a = blocks[i];
pa_assert(mb_a);
export_a = pa_memexport_new(pool_a, revoke_cb, (void*) "A");
export_b = pa_memexport_new(pool_b, revoke_cb, (void*) "B");
pa_assert(export_a && export_b);
import_b = pa_memimport_new(pool_b, release_cb, (void*) "B");
import_c = pa_memimport_new(pool_c, release_cb, (void*) "C");
pa_assert(import_b && import_c);
r = pa_memexport_put(export_a, mb_a, &id, &shm_id, &offset, &size);
pa_assert(r >= 0);
pa_assert(shm_id == id_a);
printf("A: Memory block exported as %u\n", id);
mb_b = pa_memimport_get(import_b, id, shm_id, offset, size);
pa_assert(mb_b);
r = pa_memexport_put(export_b, mb_b, &id, &shm_id, &offset, &size);
pa_assert(r >= 0);
pa_assert(shm_id == id_a || shm_id == id_b);
pa_memblock_unref(mb_b);
printf("B: Memory block exported as %u\n", id);
mb_c = pa_memimport_get(import_c, id, shm_id, offset, size);
pa_assert(mb_c);
x = pa_memblock_acquire(mb_c);
printf("1 data=%s\n", x);
pa_memblock_release(mb_c);
print_stats(pool_a, "A");
print_stats(pool_b, "B");
print_stats(pool_c, "C");
pa_memexport_free(export_b);
x = pa_memblock_acquire(mb_c);
printf("2 data=%s\n", x);
pa_memblock_release(mb_c);
pa_memblock_unref(mb_c);
pa_memimport_free(import_b);
pa_memblock_unref(mb_a);
pa_memimport_free(import_c);
pa_memexport_free(export_a);
}
printf("vaccuuming...\n");
pa_mempool_vacuum(pool_a);
pa_mempool_vacuum(pool_b);
pa_mempool_vacuum(pool_c);
printf("vaccuuming done...\n");
pa_mempool_free(pool_a);
pa_mempool_free(pool_b);
pa_mempool_free(pool_c);
return 0;
}
int main(int argc, char *argv[]) {
int ret;
pa_mempool *p;
pa_memblockq *bq;
pa_memchunk chunk1, chunk2, chunk3, chunk4;
pa_memchunk silence;
pa_sample_spec ss = {
.format = PA_SAMPLE_S16LE,
.rate = 48000,
.channels = 1
};
pa_log_set_level(PA_LOG_DEBUG);
p = pa_mempool_new(FALSE, 0);
pa_assert_se(silence.memblock = pa_memblock_new_fixed(p, (char*) "__", 2, 1));
silence.index = 0;
silence.length = pa_memblock_get_length(silence.memblock);
pa_assert_se(bq = pa_memblockq_new("test memblockq", 0, 200, 10, &ss, 4, 4, 40, &silence));
pa_assert_se(chunk1.memblock = pa_memblock_new_fixed(p, (char*) "11", 2, 1));
chunk1.index = 0;
chunk1.length = 2;
pa_assert_se(chunk2.memblock = pa_memblock_new_fixed(p, (char*) "XX22", 4, 1));
chunk2.index = 2;
chunk2.length = 2;
pa_assert_se(chunk3.memblock = pa_memblock_new_fixed(p, (char*) "3333", 4, 1));
chunk3.index = 0;
chunk3.length = 4;
pa_assert_se(chunk4.memblock = pa_memblock_new_fixed(p, (char*) "44444444", 8, 1));
chunk4.index = 0;
chunk4.length = 8;
ret = pa_memblockq_push(bq, &chunk1);
assert(ret == 0);
ret = pa_memblockq_push(bq, &chunk2);
assert(ret == 0);
ret = pa_memblockq_push(bq, &chunk3);
assert(ret == 0);
ret = pa_memblockq_push(bq, &chunk4);
assert(ret == 0);
pa_memblockq_seek(bq, -6, 0, TRUE);
ret = pa_memblockq_push(bq, &chunk3);
assert(ret == 0);
pa_memblockq_seek(bq, -2, 0, TRUE);
ret = pa_memblockq_push(bq, &chunk1);
assert(ret == 0);
pa_memblockq_seek(bq, -10, 0, TRUE);
ret = pa_memblockq_push(bq, &chunk4);
assert(ret == 0);
pa_memblockq_seek(bq, 10, 0, TRUE);
ret = pa_memblockq_push(bq, &chunk1);
assert(ret == 0);
pa_memblockq_seek(bq, -6, 0, TRUE);
ret = pa_memblockq_push(bq, &chunk2);
assert(ret == 0);
/* Test splitting */
pa_memblockq_seek(bq, -12, 0, TRUE);
ret = pa_memblockq_push(bq, &chunk1);
assert(ret == 0);
pa_memblockq_seek(bq, 20, 0, TRUE);
/* Test merging */
ret = pa_memblockq_push(bq, &chunk3);
assert(ret == 0);
pa_memblockq_seek(bq, -2, 0, TRUE);
chunk3.index += 2;
chunk3.length -= 2;
ret = pa_memblockq_push(bq, &chunk3);
assert(ret == 0);
pa_memblockq_seek(bq, 30, PA_SEEK_RELATIVE, TRUE);
dump(bq);
pa_memblockq_rewind(bq, 52);
dump(bq);
pa_memblockq_free(bq);
pa_memblock_unref(silence.memblock);
pa_memblock_unref(chunk1.memblock);
pa_memblock_unref(chunk2.memblock);
pa_memblock_unref(chunk3.memblock);
pa_memblock_unref(chunk4.memblock);
pa_mempool_free(p);
return 0;
}
