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client-node: keep track of the client allocated fd

Browse source 
when we get port_buffers with memory from the client, store this
in the buffer data and make sure we close the fd when the buffers
are removed.
This commit is contained in:
Wim Taymans 2020-06-02 15:19:39 +02:00
parent c04a9b546d
commit 4060934109
1 changed files with 55 additions and 31 deletions
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86
src/modules/module-client-node/client-node.c
View file

@ -231,30 +231,46 @@ static struct mix *ensure_mix(struct impl *impl, struct port *p, uint32_t mix_id
return mix;
}
static void clear_data(struct node *this, struct spa_data *d)
{
struct impl *impl = this->impl;
switch (d->type) {
case SPA_DATA_MemId:
{
uint32_t id;
struct pw_memblock *m;
id = SPA_PTR_TO_UINT32(d->data);
m = pw_mempool_find_id(this->client->pool, id);
if (m) {
pw_log_debug(NAME " %p: mem %d", impl, m->id);
pw_memblock_unref(m);
}
break;
}
case SPA_DATA_MemFd:
case SPA_DATA_DmaBuf:
pw_log_debug(NAME " %p: close fd:%d", impl, (int)d->fd);
close(d->fd);
break;
default:
break;
}
}
static int clear_buffers(struct node *this, struct mix *mix)
{
uint32_t i, j;
struct impl *impl = this->impl;
for (i = 0; i < mix->n_buffers; i++) {
struct buffer *b = &mix->buffers[i];
struct pw_memblock *m;
spa_log_debug(this->log, NAME" %p: clear buffer %d", this, i);
for (j = 0; j < b->buffer.n_datas; j++) {
struct spa_data *d = &b->datas[j];
if (d->type == SPA_DATA_MemId) {
uint32_t id;
id = SPA_PTR_TO_UINT32(b->buffer.datas[j].data);
m = pw_mempool_find_id(this->client->pool, id);
if (m) {
pw_log_debug(NAME " %p: mem %d", impl, m->id);
pw_memblock_unref(m);
}
}
clear_data(this, d);
}
pw_memblock_unref(b->mem);
}
@ -801,13 +817,15 @@ do_port_use_buffers(struct impl *impl,
for (j = 0; j < buffers[i]->n_datas; j++) {
struct spa_data *d = &buffers[i]->datas[j];
memcpy(&b->buffer.datas[j], d, sizeof(struct spa_data));
memcpy(&b->datas[j], d, sizeof(struct spa_data));
if (flags & SPA_NODE_BUFFERS_FLAG_ALLOC)
continue;
if (d->type == SPA_DATA_DmaBuf ||
d->type == SPA_DATA_MemFd) {
switch (d->type) {
case SPA_DATA_DmaBuf:
case SPA_DATA_MemFd:
{
uint32_t flags = PW_MEMBLOCK_FLAG_DONT_CLOSE;
if (d->flags & SPA_DATA_FLAG_READABLE)
@ -815,20 +833,25 @@ do_port_use_buffers(struct impl *impl,
if (d->flags & SPA_DATA_FLAG_WRITABLE)
flags |= PW_MEMBLOCK_FLAG_WRITABLE;
spa_log_debug(this->log, "mem %d type:%d fd:%d", j, d->type, (int)d->fd);
m = pw_mempool_import(this->client->pool,
flags, d->type, d->fd);
if (m == NULL)
return -errno;
b->buffer.datas[j].type = SPA_DATA_MemId;
b->buffer.datas[j].data = SPA_UINT32_TO_PTR(m->id);
} else if (d->type == SPA_DATA_MemPtr) {
b->datas[j].type = SPA_DATA_MemId;
b->datas[j].data = SPA_UINT32_TO_PTR(m->id);
break;
}
case SPA_DATA_MemPtr:
spa_log_debug(this->log, "mem %d %zd", j, SPA_PTRDIFF(d->data, baseptr));
b->buffer.datas[j].data = SPA_INT_TO_PTR(SPA_PTRDIFF(d->data, baseptr));
} else {
b->buffer.datas[j].type = SPA_ID_INVALID;
b->buffer.datas[j].data = NULL;
b->datas[j].data = SPA_INT_TO_PTR(SPA_PTRDIFF(d->data, baseptr));
break;
default:
b->datas[j].type = SPA_ID_INVALID;
b->datas[j].data = NULL;
spa_log_error(this->log, "invalid memory type %d", d->type);
break;
}
}
}
@ -1033,8 +1056,9 @@ static int client_node_port_buffers(void *data,
for (i = 0; i < n_buffers; i++) {
struct spa_buffer *oldbuf, *newbuf;
struct buffer *b = &mix->buffers[i];
oldbuf = mix->buffers[i].outbuf;
oldbuf = b->outbuf;
newbuf = buffers[i];
spa_log_debug(this->log, "buffer %d n_datas:%d", i, newbuf->n_datas);
@ -1044,18 +1068,18 @@ static int client_node_port_buffers(void *data,
for (j = 0; j < newbuf->n_datas; j++) {
struct spa_chunk *oldchunk = oldbuf->datas[j].chunk;
struct spa_data *d = &newbuf->datas[j];
/* overwrite everything except the chunk */
oldbuf->datas[j] = newbuf->datas[j];
oldbuf->datas[j] = *d;
oldbuf->datas[j].chunk = oldchunk;
b->datas[j].type = d->type;
b->datas[j].fd = d->fd;
spa_log_debug(this->log, " data %d type:%d fl:%08x fd:%d, offs:%d max:%d",
j,
newbuf->datas[j].type,
newbuf->datas[j].flags,
(int) newbuf->datas[j].fd,
newbuf->datas[j].mapoffset,
newbuf->datas[j].maxsize);
j, d->type, d->flags, (int) d->fd, d->mapoffset,
d->maxsize);
}
}
mix->n_buffers = n_buffers;