void pa_memchunk_make_writable(pa_memchunk *c, size_t min) {
pa_memblock *n;
size_t l;
- void *tdata, *sdata;
assert(c);
assert(c->memblock);
+ assert(PA_REFCNT_VALUE(c->memblock) > 0);
- if (pa_memblock_is_read_only(c->memblock) &&
- pa_memblock_get_length(c->memblock) >= c->index+min)
+ if (PA_REFCNT_VALUE(c->memblock) == 1 &&
+ !c->memblock->read_only &&
+ c->memblock->length >= c->index+min)
return;
l = c->length;
if (l < min)
l = min;
- n = pa_memblock_new(pa_memblock_get_pool(c->memblock), l);
- tdata = pa_memblock_acquire(n);
- sdata = pa_memblock_acquire(c->memblock);
- memcpy(tdata, (uint8_t*) sdata + c->index, c->length);
- pa_memblock_release(n);
- pa_memblock_release(c->memblock);
+ n = pa_memblock_new(c->memblock->pool, l);
+ memcpy(n->data, (uint8_t*) c->memblock->data + c->index, c->length);
pa_memblock_unref(c->memblock);
c->memblock = n;
c->index = 0;