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pipewire/pinos/server/link.c
Wim Taymans 710a1a41e6 Improve negotiation 
Fix selection of the default property value by restricting it to
something in the valid range of the property.
Fix audio/videotestsrc reuse
Fix format enum with filters.
Fix module property configuration
Fix connection refill
2017-03-01 14:07:02 +01:00

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/* Pinos
* Copyright (C) 2015 Wim Taymans <wim.taymans@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <string.h>
#include <spa/include/spa/video/format.h>
#include <spa/lib/debug.h>
#include "pinos/client/pinos.h"
#include "pinos/server/link.h"
#include "pinos/server/work-queue.h"
#define MAX_BUFFERS 16
typedef struct
{
PinosLink this;
int refcount;
PinosWorkQueue *work;
SpaFormat **format_filter;
PinosProperties *properties;
PinosListener input_port_destroy;
PinosListener input_async_complete;
PinosListener output_port_destroy;
PinosListener output_async_complete;
bool allocated;
PinosMemblock buffer_mem;
SpaBuffer **buffers;
unsigned int n_buffers;
} PinosLinkImpl;
static void
pinos_link_update_state (PinosLink *link,
PinosLinkState state,
char *error)
{
PinosLinkState old = link->state;
if (state != old) {
pinos_log_debug ("link %p: update state %s -> %s (%s)", link,
pinos_link_state_as_string (old),
pinos_link_state_as_string (state),
error);
link->state = state;
if (link->error)
free (link->error);
link->error = error;
pinos_signal_emit (&link->state_changed, link, old, state);
}
}
static SpaResult
do_negotiate (PinosLink *this, SpaNodeState in_state, SpaNodeState out_state)
{
PinosLinkImpl *impl = SPA_CONTAINER_OF (this, PinosLinkImpl, this);
SpaResult res = SPA_RESULT_ERROR;
SpaFormat *format;
char *error = NULL;
if (in_state != SPA_NODE_STATE_CONFIGURE && out_state != SPA_NODE_STATE_CONFIGURE)
return SPA_RESULT_OK;
pinos_link_update_state (this, PINOS_LINK_STATE_NEGOTIATING, NULL);
if (out_state > SPA_NODE_STATE_READY && this->output->node->state == PINOS_NODE_STATE_IDLE) {
pinos_node_set_state (this->output->node, PINOS_NODE_STATE_SUSPENDED);
out_state = SPA_NODE_STATE_CONFIGURE;
}
format = pinos_core_find_format (this->core,
this->output,
this->input,
NULL,
0,
NULL,
&error);
if (format == NULL) {
goto error;
}
pinos_log_debug ("link %p: doing set format", this);
if (pinos_log_level_enabled (SPA_LOG_LEVEL_DEBUG))
spa_debug_format (format);
if (out_state == SPA_NODE_STATE_CONFIGURE) {
pinos_log_debug ("link %p: doing set format on output", this);
if ((res = spa_node_port_set_format (this->output->node->node,
SPA_DIRECTION_OUTPUT,
this->output->port_id,
SPA_PORT_FORMAT_FLAG_NEAREST,
format)) < 0) {
asprintf (&error, "error set output format: %d", res);
goto error;
}
pinos_work_queue_add (impl->work, this->output->node, res, NULL, NULL);
} else if (in_state == SPA_NODE_STATE_CONFIGURE) {
pinos_log_debug ("link %p: doing set format on input", this);
if ((res = spa_node_port_set_format (this->input->node->node,
SPA_DIRECTION_INPUT,
this->input->port_id,
SPA_PORT_FORMAT_FLAG_NEAREST,
format)) < 0) {
asprintf (&error, "error set input format: %d", res);
goto error;
}
pinos_work_queue_add (impl->work, this->input->node, res, NULL, NULL);
}
return res;
error:
{
pinos_link_update_state (this, PINOS_LINK_STATE_ERROR, error);
return res;
}
}
static void *
find_param (const SpaPortInfo *info, SpaAllocParamType type)
{
unsigned int i;
for (i = 0; i < info->n_params; i++) {
if (info->params[i]->type == type)
return info->params[i];
}
return NULL;
}
static void *
find_meta_enable (const SpaPortInfo *info, SpaMetaType type)
{
unsigned int i;
for (i = 0; i < info->n_params; i++) {
if (info->params[i]->type == SPA_ALLOC_PARAM_TYPE_META_ENABLE &&
((SpaAllocParamMetaEnable*)info->params[i])->type == type) {
return info->params[i];
}
}
return NULL;
}
static SpaBuffer **
alloc_buffers (PinosLink *this,
unsigned int n_buffers,
unsigned int n_params,
SpaAllocParam **params,
unsigned int n_datas,
size_t *data_sizes,
ssize_t *data_strides,
PinosMemblock *mem)
{
SpaBuffer **buffers, *bp;
unsigned int i;
size_t skel_size, data_size, meta_size;
SpaChunk *cdp;
void *ddp;
unsigned int n_metas;
SpaMeta *metas;
n_metas = data_size = meta_size = 0;
/* each buffer */
skel_size = sizeof (SpaBuffer);
metas = alloca (sizeof (SpaMeta) * n_params + 1);
/* add shared metadata */
metas[n_metas].type = SPA_META_TYPE_SHARED;
metas[n_metas].size = spa_meta_type_get_size (SPA_META_TYPE_SHARED);
meta_size += metas[n_metas].size;
n_metas++;
skel_size += sizeof (SpaMeta);
/* collect metadata */
for (i = 0; i < n_params; i++) {
SpaAllocParam *ap = params[i];
if (ap->type == SPA_ALLOC_PARAM_TYPE_META_ENABLE) {
SpaAllocParamMetaEnable *pme = (SpaAllocParamMetaEnable *) ap;
metas[n_metas].type = pme->type;
metas[n_metas].size = spa_meta_type_get_size (pme->type);
meta_size += metas[n_metas].size;
n_metas++;
skel_size += sizeof (SpaMeta);
}
}
data_size += meta_size;
/* data */
for (i = 0; i < n_datas; i++) {
data_size += sizeof (SpaChunk);
data_size += data_sizes[i];
skel_size += sizeof (SpaData);
}
buffers = calloc (n_buffers, skel_size + sizeof (SpaBuffer *));
/* pointer to buffer structures */
bp = SPA_MEMBER (buffers, n_buffers * sizeof (SpaBuffer *), SpaBuffer);
pinos_memblock_alloc (PINOS_MEMBLOCK_FLAG_WITH_FD |
PINOS_MEMBLOCK_FLAG_MAP_READWRITE |
PINOS_MEMBLOCK_FLAG_SEAL,
n_buffers * data_size,
mem);
for (i = 0; i < n_buffers; i++) {
int j;
SpaBuffer *b;
void *p;
buffers[i] = b = SPA_MEMBER (bp, skel_size * i, SpaBuffer);
p = SPA_MEMBER (mem->ptr, data_size * i, void);
b->id = i;
b->n_metas = n_metas;
b->metas = SPA_MEMBER (b, sizeof (SpaBuffer), SpaMeta);
for (j = 0; j < n_metas; j++) {
SpaMeta *m = &b->metas[j];
m->type = metas[j].type;
m->data = p;
m->size = metas[j].size;
switch (m->type) {
case SPA_META_TYPE_SHARED:
{
SpaMetaShared *msh = p;
msh->type = SPA_DATA_TYPE_MEMFD;
msh->flags = 0;
msh->fd = mem->fd;
msh->offset = data_size * i;
msh->size = data_size;
break;
}
case SPA_META_TYPE_RINGBUFFER:
{
SpaMetaRingbuffer *rb = p;
spa_ringbuffer_init (&rb->ringbuffer, data_sizes[0]);
break;
}
default:
break;
}
p += m->size;
}
/* pointer to data structure */
b->n_datas = n_datas;
b->datas = SPA_MEMBER (b->metas, n_metas * sizeof (SpaMeta), SpaData);
cdp = p;
ddp = SPA_MEMBER (cdp, sizeof (SpaChunk) * n_datas, void);
for (j = 0; j < n_datas; j++) {
SpaData *d = &b->datas[j];
d->chunk = &cdp[j];
if (data_sizes[j] > 0) {
d->type = SPA_DATA_TYPE_MEMFD;
d->flags = 0;
d->fd = mem->fd;
d->mapoffset = SPA_PTRDIFF (ddp, mem->ptr);
d->maxsize = data_sizes[j];
d->data = SPA_MEMBER (mem->ptr, d->mapoffset, void);
d->chunk->offset = 0;
d->chunk->size = data_sizes[j];
d->chunk->stride = data_strides[j];
ddp += data_sizes[j];
} else {
d->type = SPA_DATA_TYPE_INVALID;
d->data = NULL;
}
}
}
return buffers;
}
static SpaResult
do_allocation (PinosLink *this, SpaNodeState in_state, SpaNodeState out_state)
{
PinosLinkImpl *impl = SPA_CONTAINER_OF (this, PinosLinkImpl, this);
SpaResult res;
const SpaPortInfo *iinfo, *oinfo;
SpaPortInfoFlags in_flags, out_flags;
char *error = NULL;
if (in_state != SPA_NODE_STATE_READY && out_state != SPA_NODE_STATE_READY)
return SPA_RESULT_OK;
pinos_link_update_state (this, PINOS_LINK_STATE_ALLOCATING, NULL);
pinos_log_debug ("link %p: doing alloc buffers %p %p", this, this->output->node, this->input->node);
/* find out what's possible */
if ((res = spa_node_port_get_info (this->output->node->node,
SPA_DIRECTION_OUTPUT,
this->output->port_id,
&oinfo)) < 0) {
asprintf (&error, "error get output port info: %d", res);
goto error;
}
if ((res = spa_node_port_get_info (this->input->node->node,
SPA_DIRECTION_INPUT,
this->input->port_id,
&iinfo)) < 0) {
asprintf (&error, "error get input port info: %d", res);
goto error;
}
if (pinos_log_level_enabled (SPA_LOG_LEVEL_DEBUG)) {
spa_debug_port_info (oinfo);
spa_debug_port_info (iinfo);
}
in_flags = iinfo->flags;
out_flags = oinfo->flags;
if (out_flags & SPA_PORT_INFO_FLAG_LIVE) {
pinos_log_debug ("setting link as live");
this->output->node->live = true;
this->input->node->live = true;
}
if (in_state == SPA_NODE_STATE_READY && out_state == SPA_NODE_STATE_READY) {
if ((out_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS) &&
(in_flags & SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS)) {
out_flags = SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS;
in_flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS;
} else if ((out_flags & SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS) &&
(in_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS)) {
out_flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS;
in_flags = SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS;
} else if ((out_flags & SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS) &&
(in_flags & SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS)) {
out_flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS;
in_flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS;
} else if ((out_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS) &&
(in_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS)) {
out_flags = SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS;
in_flags = SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS;
} else {
asprintf (&error, "no common buffer alloc found");
res = SPA_RESULT_ERROR;
goto error;
}
} else if (in_state == SPA_NODE_STATE_READY && out_state > SPA_NODE_STATE_READY) {
out_flags &= ~SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS;
in_flags &= ~SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS;
} else if (out_state == SPA_NODE_STATE_READY && in_state > SPA_NODE_STATE_READY) {
in_flags &= ~SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS;
out_flags &= ~SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS;
} else
return SPA_RESULT_OK;
if (impl->buffers == NULL) {
SpaAllocParamBuffers *in_alloc, *out_alloc;
SpaAllocParamMetaEnableRingbuffer *in_me, *out_me;
unsigned int max_buffers;
size_t minsize, stride, blocks;
in_me = find_meta_enable (iinfo, SPA_META_TYPE_RINGBUFFER);
out_me = find_meta_enable (oinfo, SPA_META_TYPE_RINGBUFFER);
if (in_me && out_me) {
max_buffers = 1;
minsize = SPA_MAX (out_me->minsize, in_me->minsize);
stride = SPA_MAX (out_me->stride, in_me->stride);
blocks = SPA_MAX (1, SPA_MAX (out_me->blocks, in_me->blocks));
} else {
max_buffers = MAX_BUFFERS;
minsize = stride = 0;
blocks = 1;
in_alloc = find_param (iinfo, SPA_ALLOC_PARAM_TYPE_BUFFERS);
if (in_alloc) {
max_buffers = in_alloc->max_buffers == 0 ? max_buffers : SPA_MIN (in_alloc->max_buffers, max_buffers);
minsize = SPA_MAX (minsize, in_alloc->minsize);
stride = SPA_MAX (stride, in_alloc->stride);
}
out_alloc = find_param (oinfo, SPA_ALLOC_PARAM_TYPE_BUFFERS);
if (out_alloc) {
max_buffers = out_alloc->max_buffers == 0 ? max_buffers : SPA_MIN (out_alloc->max_buffers, max_buffers);
minsize = SPA_MAX (minsize, out_alloc->minsize);
stride = SPA_MAX (stride, out_alloc->stride);
}
}
if ((in_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS) ||
(out_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS))
minsize = 0;
if (this->output->allocated) {
out_flags = 0;
in_flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS;
impl->n_buffers = this->output->n_buffers;
impl->buffers = this->output->buffers;
impl->allocated = false;
pinos_log_debug ("reusing %d output buffers %p", impl->n_buffers, impl->buffers);
} else {
size_t data_sizes[1];
ssize_t data_strides[1];
data_sizes[0] = minsize;
data_strides[0] = stride;
impl->n_buffers = max_buffers;
impl->buffers = alloc_buffers (this,
impl->n_buffers,
oinfo->n_params,
oinfo->params,
1,
data_sizes,
data_strides,
&impl->buffer_mem);
}
if (out_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS) {
if ((res = spa_node_port_alloc_buffers (this->output->node->node,
SPA_DIRECTION_OUTPUT,
this->output->port_id,
iinfo->params, iinfo->n_params,
impl->buffers, &impl->n_buffers)) < 0) {
asprintf (&error, "error alloc output buffers: %d", res);
goto error;
}
pinos_work_queue_add (impl->work, this->output->node, res, NULL, NULL);
this->output->buffers = impl->buffers;
this->output->n_buffers = impl->n_buffers;
this->output->allocated = true;
this->output->buffer_mem = impl->buffer_mem;
impl->allocated = false;
pinos_log_debug ("allocated %d buffers %p from output port", impl->n_buffers, impl->buffers);
} else if (in_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS) {
if ((res = spa_node_port_alloc_buffers (this->input->node->node,
SPA_DIRECTION_INPUT,
this->input->port_id,
oinfo->params, oinfo->n_params,
impl->buffers, &impl->n_buffers)) < 0) {
asprintf (&error, "error alloc input buffers: %d", res);
goto error;
}
pinos_work_queue_add (impl->work, this->input->node, res, NULL, NULL);
this->input->buffers = impl->buffers;
this->input->n_buffers = impl->n_buffers;
this->input->allocated = true;
this->input->buffer_mem = impl->buffer_mem;
impl->allocated = false;
pinos_log_debug ("allocated %d buffers %p from input port", impl->n_buffers, impl->buffers);
}
}
if (in_flags & SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS) {
pinos_log_debug ("using %d buffers %p on input port", impl->n_buffers, impl->buffers);
if ((res = spa_node_port_use_buffers (this->input->node->node,
SPA_DIRECTION_INPUT,
this->input->port_id,
impl->buffers,
impl->n_buffers)) < 0) {
asprintf (&error, "error use input buffers: %d", res);
goto error;
}
pinos_work_queue_add (impl->work, this->input->node, res, NULL, NULL);
this->input->buffers = impl->buffers;
this->input->n_buffers = impl->n_buffers;
this->input->allocated = false;
}
else if (out_flags & SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS) {
pinos_log_debug ("using %d buffers %p on output port", impl->n_buffers, impl->buffers);
if ((res = spa_node_port_use_buffers (this->output->node->node,
SPA_DIRECTION_OUTPUT,
this->output->port_id,
impl->buffers,
impl->n_buffers)) < 0) {
asprintf (&error, "error use output buffers: %d", res);
goto error;
}
pinos_work_queue_add (impl->work, this->output->node, res, NULL, NULL);
this->output->buffers = impl->buffers;
this->output->n_buffers = impl->n_buffers;
this->output->allocated = false;
} else {
asprintf (&error, "no common buffer alloc found");
goto error;
}
return res;
error:
{
this->output->buffers = NULL;
this->output->n_buffers = 0;
this->output->allocated = false;
this->input->buffers = NULL;
this->input->n_buffers = 0;
this->input->allocated = false;
pinos_link_update_state (this, PINOS_LINK_STATE_ERROR, error);
return res;
}
}
static SpaResult
do_start (PinosLink *this, SpaNodeState in_state, SpaNodeState out_state)
{
SpaResult res = SPA_RESULT_OK;
PinosLinkImpl *impl = SPA_CONTAINER_OF (this, PinosLinkImpl, this);
if (in_state < SPA_NODE_STATE_PAUSED || out_state < SPA_NODE_STATE_PAUSED)
return SPA_RESULT_OK;
else if (in_state == SPA_NODE_STATE_STREAMING && out_state == SPA_NODE_STATE_STREAMING) {
pinos_link_update_state (this, PINOS_LINK_STATE_RUNNING, NULL);
} else {
pinos_link_update_state (this, PINOS_LINK_STATE_PAUSED, NULL);
if (in_state == SPA_NODE_STATE_PAUSED) {
res = pinos_node_set_state (this->input->node, PINOS_NODE_STATE_RUNNING);
pinos_work_queue_add (impl->work, this->input->node, res, NULL, NULL);
}
if (out_state == SPA_NODE_STATE_PAUSED) {
res = pinos_node_set_state (this->output->node, PINOS_NODE_STATE_RUNNING);
pinos_work_queue_add (impl->work, this->input->node, res, NULL, NULL);
}
}
return res;
}
static SpaResult
check_states (PinosLink *this,
void *user_data,
SpaResult res)
{
PinosLinkImpl *impl = SPA_CONTAINER_OF (this, PinosLinkImpl, this);
SpaNodeState in_state, out_state;
again:
if (this->state == PINOS_LINK_STATE_ERROR)
return SPA_RESULT_ERROR;
if (this->input == NULL || this->output == NULL)
return SPA_RESULT_OK;
if (this->input->node->state == PINOS_NODE_STATE_ERROR ||
this->output->node->state == PINOS_NODE_STATE_ERROR)
return SPA_RESULT_ERROR;
in_state = this->input->node->node->state;
out_state = this->output->node->node->state;
pinos_log_debug ("link %p: input state %d, output state %d", this, in_state, out_state);
if ((res = do_negotiate (this, in_state, out_state)) != SPA_RESULT_OK)
goto exit;
if ((res = do_allocation (this, in_state, out_state)) != SPA_RESULT_OK)
goto exit;
if ((res = do_start (this, in_state, out_state)) != SPA_RESULT_OK)
goto exit;
if (this->input->node->node->state != in_state)
goto again;
if (this->output->node->node->state != out_state)
goto again;
return SPA_RESULT_OK;
exit:
pinos_work_queue_add (impl->work,
this,
SPA_RESULT_WAIT_SYNC,
(PinosWorkFunc) check_states,
this);
return res;
}
static void
on_input_async_complete_notify (PinosListener *listener,
PinosNode *node,
uint32_t seq,
SpaResult res)
{
PinosLinkImpl *impl = SPA_CONTAINER_OF (listener, PinosLinkImpl, input_async_complete);
pinos_log_debug ("link %p: node %p async complete %d %d", impl, node, seq, res);
pinos_work_queue_complete (impl->work, node, seq, res);
}
static void
on_output_async_complete_notify (PinosListener *listener,
PinosNode *node,
uint32_t seq,
SpaResult res)
{
PinosLinkImpl *impl = SPA_CONTAINER_OF (listener, PinosLinkImpl, output_async_complete);
pinos_log_debug ("link %p: node %p async complete %d %d", impl, node, seq, res);
pinos_work_queue_complete (impl->work, node, seq, res);
}
static void
on_port_destroy (PinosLink *this,
PinosPort *port)
{
PinosLinkImpl *impl = (PinosLinkImpl *) this;
PinosPort *other;
if (port == this->input) {
pinos_log_debug ("link %p: input port destroyed %p", this, port);
pinos_signal_remove (&impl->input_port_destroy);
pinos_signal_remove (&impl->input_async_complete);
this->input = NULL;
other = this->output;
} else if (port == this->output) {
pinos_log_debug ("link %p: output port destroyed %p", this, port);
pinos_signal_remove (&impl->output_port_destroy);
pinos_signal_remove (&impl->output_async_complete);
this->output = NULL;
other = this->input;
} else
return;
if (port->allocated) {
impl->buffers = NULL;
impl->n_buffers = 0;
pinos_log_debug ("link %p: clear input allocated buffers on port %p", this, other);
pinos_port_clear_buffers (other);
}
pinos_signal_emit (&this->port_unlinked, this, port);
pinos_link_update_state (this, PINOS_LINK_STATE_UNLINKED, NULL);
pinos_link_destroy (this);
}
static void
on_input_port_destroy (PinosListener *listener,
PinosPort *port)
{
PinosLinkImpl *impl = SPA_CONTAINER_OF (listener, PinosLinkImpl, input_port_destroy);
on_port_destroy (&impl->this, port);
}
static void
on_output_port_destroy (PinosListener *listener,
PinosPort *port)
{
PinosLinkImpl *impl = SPA_CONTAINER_OF (listener, PinosLinkImpl, output_port_destroy);
on_port_destroy (&impl->this, port);
}
bool
pinos_link_activate (PinosLink *this)
{
PinosLinkImpl *impl = SPA_CONTAINER_OF (this, PinosLinkImpl, this);
pinos_work_queue_add (impl->work,
this,
SPA_RESULT_WAIT_SYNC,
(PinosWorkFunc) check_states,
this);
return true;
}
bool
pinos_pinos_link_deactivate (PinosLink *this)
{
return true;
}
static SpaResult
link_dispatch_func (void *object,
PinosMessageType type,
void *message,
void *data)
{
switch (type) {
default:
break;
}
return SPA_RESULT_OK;
}
static void
pinos_link_free (PinosLink *link)
{
PinosLinkImpl *impl = SPA_CONTAINER_OF (link, PinosLinkImpl, this);
pinos_log_debug ("link %p: free", link);
pinos_signal_emit (&link->free_signal, link);
pinos_work_queue_destroy (impl->work);
if (impl->allocated)
pinos_memblock_free (&impl->buffer_mem);
free (impl);
}
static void
link_unbind_func (void *data)
{
PinosResource *resource = data;
PinosLink *this = resource->object;
PinosLinkImpl *impl = SPA_CONTAINER_OF (this, PinosLinkImpl, this);
spa_list_remove (&resource->link);
if (--impl->refcount == 0)
pinos_link_free (this);
}
static SpaResult
link_bind_func (PinosGlobal *global,
PinosClient *client,
uint32_t version,
uint32_t id)
{
PinosLink *this = global->object;
PinosLinkImpl *impl = SPA_CONTAINER_OF (this, PinosLinkImpl, this);
PinosResource *resource;
PinosMessageLinkInfo m;
PinosLinkInfo info;
resource = pinos_resource_new (client,
id,
global->type,
global->object,
link_unbind_func);
if (resource == NULL)
goto no_mem;
impl->refcount++;
pinos_resource_set_dispatch (resource,
link_dispatch_func,
global);
pinos_log_debug ("link %p: bound to %d", global->object, resource->id);
spa_list_insert (this->resource_list.prev, &resource->link);
m.info = &info;
info.id = global->id;
info.change_mask = ~0;
info.output_node_id = this->output ? this->output->node->global->id : -1;
info.output_port_id = this->output ? this->output->port_id : -1;
info.input_node_id = this->input ? this->input->node->global->id : -1;
info.input_port_id = this->input ? this->input->port_id : -1;
return pinos_client_send_message (resource->client,
resource,
PINOS_MESSAGE_LINK_INFO,
&m,
true);
no_mem:
pinos_client_send_error (client,
client->core_resource,
SPA_RESULT_NO_MEMORY,
"no memory");
return SPA_RESULT_NO_MEMORY;
}
PinosLink *
pinos_link_new (PinosCore *core,
PinosPort *output,
PinosPort *input,
SpaFormat **format_filter,
PinosProperties *properties)
{
PinosLinkImpl *impl;
PinosLink *this;
impl = calloc (1, sizeof (PinosLinkImpl));
if (impl == NULL)
return NULL;
this = &impl->this;
pinos_log_debug ("link %p: new", this);
impl->work = pinos_work_queue_new (core->main_loop->loop);
this->core = core;
this->properties = properties;
this->state = PINOS_LINK_STATE_INIT;
impl->refcount = 1;
this->input = input;
this->output = output;
spa_list_init (&this->resource_list);
pinos_signal_init (&this->port_unlinked);
pinos_signal_init (&this->state_changed);
pinos_signal_init (&this->destroy_signal);
pinos_signal_init (&this->free_signal);
impl->format_filter = format_filter;
pinos_signal_add (&this->input->destroy_signal,
&impl->input_port_destroy,
on_input_port_destroy);
pinos_signal_add (&this->input->node->async_complete,
&impl->input_async_complete,
on_input_async_complete_notify);
pinos_signal_add (&this->output->destroy_signal,
&impl->output_port_destroy,
on_output_port_destroy);
pinos_signal_add (&this->output->node->async_complete,
&impl->output_async_complete,
on_output_async_complete_notify);
pinos_log_debug ("link %p: constructed %p:%d -> %p:%d", impl,
this->output->node, this->output->port_id,
this->input->node, this->input->port_id);
spa_list_insert (core->link_list.prev, &this->link);
this->global = pinos_core_add_global (core,
NULL,
core->uri.link,
0,
this,
link_bind_func);
return this;
}
static void
clear_port_buffers (PinosLink *link, PinosPort *port)
{
if (!port->allocated) {
pinos_log_debug ("link %p: clear buffers on port %p", link, port);
spa_node_port_use_buffers (port->node->node,
port->direction,
port->port_id,
NULL, 0);
port->buffers = NULL;
port->n_buffers = 0;
}
}
static SpaResult
do_link_remove_done (SpaLoop *loop,
bool async,
uint32_t seq,
size_t size,
void *data,
void *user_data)
{
PinosLink *this = user_data;
PinosLinkImpl *impl = SPA_CONTAINER_OF (this, PinosLinkImpl, this);
if (this->input) {
spa_list_remove (&this->input_link);
this->input->node->n_used_input_links--;
clear_port_buffers (this, this->input);
if (this->input->node->n_used_input_links == 0 &&
this->input->node->n_used_output_links == 0)
pinos_node_set_state (this->input->node, PINOS_NODE_STATE_IDLE);
this->input = NULL;
}
if (this->output) {
spa_list_remove (&this->output_link);
this->output->node->n_used_output_links--;
clear_port_buffers (this, this->output);
if (this->output->node->n_used_input_links == 0 &&
this->output->node->n_used_output_links == 0)
pinos_node_set_state (this->output->node, PINOS_NODE_STATE_IDLE);
this->output = NULL;
}
if (--impl->refcount == 0)
pinos_link_free (this);
return SPA_RESULT_OK;
}
static SpaResult
do_link_remove (SpaLoop *loop,
bool async,
uint32_t seq,
size_t size,
void *data,
void *user_data)
{
SpaResult res;
PinosLink *this = user_data;
if (this->rt.input) {
spa_list_remove (&this->rt.input_link);
this->rt.input = NULL;
}
if (this->rt.output) {
spa_list_remove (&this->rt.output_link);
this->rt.output = NULL;
}
res = pinos_loop_invoke (this->core->main_loop->loop,
do_link_remove_done,
seq,
0,
NULL,
this);
return res;
}
/**
* pinos_link_destroy:
* @link: a #PinosLink
*
* Trigger removal of @link
*/
void
pinos_link_destroy (PinosLink * this)
{
PinosLinkImpl *impl = SPA_CONTAINER_OF (this, PinosLinkImpl, this);
PinosResource *resource, *tmp;
pinos_log_debug ("link %p: destroy", impl);
pinos_signal_emit (&this->destroy_signal, this);
pinos_global_destroy (this->global);
spa_list_remove (&this->link);
spa_list_for_each_safe (resource, tmp, &this->resource_list, link)
pinos_resource_destroy (resource);
if (this->input) {
pinos_signal_remove (&impl->input_port_destroy);
pinos_signal_remove (&impl->input_async_complete);
impl->refcount++;
pinos_loop_invoke (this->input->node->data_loop->loop,
do_link_remove,
1,
0,
NULL,
this);
}
if (this->output) {
pinos_signal_remove (&impl->output_port_destroy);
pinos_signal_remove (&impl->output_async_complete);
impl->refcount++;
pinos_loop_invoke (this->output->node->data_loop->loop,
do_link_remove,
2,
0,
NULL,
this);
}
if (--impl->refcount == 0)
pinos_link_free (this);
}
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