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pipewire/pinos/server/client-node.c
Wim Taymans f92b68c3c3 Use types with known sizes where we can, easier to serialize 
Add iterator for POD and use it to implement some demarshalling.
2017-03-07 11:56:43 +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 <stddef.h>
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <dlfcn.h>
#include <sys/socket.h>
#include <sys/mman.h>
#include <sys/eventfd.h>
#include "pinos/client/pinos.h"
#include "pinos/client/interfaces.h"
#include "pinos/client/serialize.h"
#include "pinos/client/transport.h"
#include "pinos/server/core.h"
#include "pinos/server/client-node.h"
#include "spa/include/spa/node.h"
#define MAX_INPUTS 64
#define MAX_OUTPUTS 64
#define MAX_BUFFERS 64
#define CHECK_IN_PORT_ID(this,d,p) ((d) == SPA_DIRECTION_INPUT && (p) < MAX_INPUTS)
#define CHECK_OUT_PORT_ID(this,d,p) ((d) == SPA_DIRECTION_OUTPUT && (p) < MAX_OUTPUTS)
#define CHECK_PORT_ID(this,d,p) (CHECK_IN_PORT_ID(this,d,p) || CHECK_OUT_PORT_ID(this,d,p))
#define CHECK_FREE_IN_PORT(this,d,p) (CHECK_IN_PORT_ID(this,d,p) && !(this)->in_ports[p].valid)
#define CHECK_FREE_OUT_PORT(this,d,p) (CHECK_OUT_PORT_ID(this,d,p) && !(this)->out_ports[p].valid)
#define CHECK_FREE_PORT(this,d,p) (CHECK_FREE_IN_PORT (this,d,p) || CHECK_FREE_OUT_PORT (this,d,p))
#define CHECK_IN_PORT(this,d,p) (CHECK_IN_PORT_ID(this,d,p) && (this)->in_ports[p].valid)
#define CHECK_OUT_PORT(this,d,p) (CHECK_OUT_PORT_ID(this,d,p) && (this)->out_ports[p].valid)
#define CHECK_PORT(this,d,p) (CHECK_IN_PORT (this,d,p) || CHECK_OUT_PORT (this,d,p))
#define CHECK_PORT_BUFFER(this,b,p) (b < p->n_buffers)
typedef struct _SpaProxy SpaProxy;
typedef struct _ProxyBuffer ProxyBuffer;
struct _ProxyBuffer {
SpaBuffer *outbuf;
SpaBuffer buffer;
SpaMeta metas[4];
SpaData datas[4];
off_t offset;
size_t size;
bool outstanding;
};
typedef struct {
bool valid;
SpaPortInfo *info;
SpaFormat *format;
uint32_t n_formats;
SpaFormat **formats;
void *io;
uint32_t n_buffers;
ProxyBuffer buffers[MAX_BUFFERS];
uint32_t buffer_mem_id;
PinosMemblock buffer_mem;
} SpaProxyPort;
struct _SpaProxy
{
SpaNode node;
PinosNode *pnode;
SpaIDMap *map;
SpaLog *log;
SpaLoop *main_loop;
SpaLoop *data_loop;
SpaNodeEventCallback event_cb;
void *user_data;
PinosResource *resource;
SpaSource data_source;
uint32_t max_inputs;
uint32_t n_inputs;
uint32_t max_outputs;
uint32_t n_outputs;
SpaProxyPort in_ports[MAX_INPUTS];
SpaProxyPort out_ports[MAX_OUTPUTS];
uint32_t seq;
};
typedef struct
{
PinosClientNode this;
PinosCore *core;
SpaProxy proxy;
PinosListener node_free;
PinosListener transport_changed;
PinosListener loop_changed;
PinosListener global_added;
int data_fd;
} PinosClientNodeImpl;
static void
send_async_complete (SpaProxy *this, uint32_t seq, SpaResult res)
{
SpaNodeEventAsyncComplete ac;
ac.event.type = SPA_NODE_EVENT_TYPE_ASYNC_COMPLETE;
ac.event.size = sizeof (ac);
ac.seq = seq;
ac.res = res;
this->event_cb (&this->node, &ac.event, this->user_data);
}
static SpaResult
clear_buffers (SpaProxy *this, SpaProxyPort *port)
{
if (port->n_buffers) {
spa_log_info (this->log, "proxy %p: clear buffers", this);
pinos_memblock_free (&port->buffer_mem);
port->n_buffers = 0;
}
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_get_props (SpaNode *node,
SpaProps **props)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_proxy_node_set_props (SpaNode *node,
const SpaProps *props)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static void
send_need_input (SpaProxy *this)
{
PinosNode *pnode = this->pnode;
SpaNodeEvent event;
uint64_t cmd = 1;
event.type = SPA_NODE_EVENT_TYPE_NEED_INPUT;
event.size = sizeof (event);
pinos_transport_add_event (pnode->transport, &event);
write (this->data_source.fd, &cmd, 8);
}
static void
send_have_output (SpaProxy *this)
{
PinosNode *pnode = this->pnode;
SpaNodeEvent event;
uint64_t cmd = 1;
event.type = SPA_NODE_EVENT_TYPE_HAVE_OUTPUT;
event.size = sizeof (event);
pinos_transport_add_event (pnode->transport, &event);
write (this->data_source.fd, &cmd, 8);
}
static SpaResult
spa_proxy_node_send_command (SpaNode *node,
SpaNodeCommand *command)
{
SpaProxy *this;
SpaResult res = SPA_RESULT_OK;
if (node == NULL || command == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaProxy, node);
if (this->resource == NULL)
return SPA_RESULT_OK;
switch (command->type) {
case SPA_NODE_COMMAND_INVALID:
return SPA_RESULT_INVALID_COMMAND;
case SPA_NODE_COMMAND_START:
case SPA_NODE_COMMAND_PAUSE:
case SPA_NODE_COMMAND_FLUSH:
case SPA_NODE_COMMAND_DRAIN:
case SPA_NODE_COMMAND_MARKER:
/* send start */
pinos_client_node_notify_node_command (this->resource,
this->seq,
command);
if (command->type == SPA_NODE_COMMAND_START)
send_need_input (this);
res = SPA_RESULT_RETURN_ASYNC (this->seq++);
break;
case SPA_NODE_COMMAND_CLOCK_UPDATE:
pinos_client_node_notify_node_command (this->resource,
this->seq++,
command);
break;
}
return res;
}
static SpaResult
spa_proxy_node_set_event_callback (SpaNode *node,
SpaNodeEventCallback event,
void *user_data)
{
SpaProxy *this;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaProxy, node);
this->event_cb = event;
this->user_data = user_data;
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_get_n_ports (SpaNode *node,
uint32_t *n_input_ports,
uint32_t *max_input_ports,
uint32_t *n_output_ports,
uint32_t *max_output_ports)
{
SpaProxy *this;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaProxy, node);
if (n_input_ports)
*n_input_ports = this->n_inputs;
if (max_input_ports)
*max_input_ports = this->max_inputs;
if (n_output_ports)
*n_output_ports = this->n_outputs;
if (max_output_ports)
*max_output_ports = this->max_outputs;
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_get_port_ids (SpaNode *node,
uint32_t n_input_ports,
uint32_t *input_ids,
uint32_t n_output_ports,
uint32_t *output_ids)
{
SpaProxy *this;
int c, i;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaProxy, node);
if (input_ids) {
for (c = 0, i = 0; i < MAX_INPUTS && c < n_input_ports; i++) {
if (this->in_ports[i].valid)
input_ids[c++] = i;
}
}
if (output_ids) {
for (c = 0, i = 0; i < MAX_OUTPUTS && c < n_output_ports; i++) {
if (this->out_ports[i].valid)
output_ids[c++] = i;
}
}
return SPA_RESULT_OK;
}
static void
do_update_port (SpaProxy *this,
SpaDirection direction,
uint32_t port_id,
uint32_t change_mask,
uint32_t n_possible_formats,
const SpaFormat **possible_formats,
const SpaFormat *format,
const SpaProps *props,
const SpaPortInfo *info)
{
SpaProxyPort *port;
uint32_t i;
size_t size;
if (direction == SPA_DIRECTION_INPUT) {
port = &this->in_ports[port_id];
} else {
port = &this->out_ports[port_id];
}
if (change_mask & PINOS_MESSAGE_PORT_UPDATE_POSSIBLE_FORMATS) {
for (i = 0; i < port->n_formats; i++)
free (port->formats[i]);
port->n_formats = n_possible_formats;
if (port->n_formats)
port->formats = realloc (port->formats, port->n_formats * sizeof (SpaFormat *));
else {
free (port->formats);
port->formats = NULL;
}
for (i = 0; i < port->n_formats; i++) {
port->formats[i] = spa_format_copy (possible_formats[i]);
}
}
if (change_mask & PINOS_MESSAGE_PORT_UPDATE_FORMAT) {
if (port->format)
free (port->format);
port->format = spa_format_copy (format);
}
if (change_mask & PINOS_MESSAGE_PORT_UPDATE_PROPS) {
}
if (change_mask & PINOS_MESSAGE_PORT_UPDATE_INFO && info) {
if (port->info)
free (port->info);
size = pinos_serialize_port_info_get_size (info);
port->info = size ? pinos_serialize_port_info_copy_into (malloc (size), info) : NULL;
}
if (!port->valid) {
spa_log_info (this->log, "proxy %p: adding port %d", this, port_id);
port->format = NULL;
port->valid = true;
if (direction == SPA_DIRECTION_INPUT)
this->n_inputs++;
else
this->n_outputs++;
}
}
static void
clear_port (SpaProxy *this,
SpaProxyPort *port,
SpaDirection direction,
uint32_t port_id)
{
do_update_port (this,
direction,
port_id,
PINOS_MESSAGE_PORT_UPDATE_POSSIBLE_FORMATS |
PINOS_MESSAGE_PORT_UPDATE_FORMAT |
PINOS_MESSAGE_PORT_UPDATE_PROPS |
PINOS_MESSAGE_PORT_UPDATE_INFO,
0,
NULL,
NULL,
NULL,
NULL);
clear_buffers (this, port);
}
static void
do_uninit_port (SpaProxy *this,
SpaDirection direction,
uint32_t port_id)
{
SpaProxyPort *port;
spa_log_info (this->log, "proxy %p: removing port %d", this, port_id);
if (direction == SPA_DIRECTION_INPUT) {
port = &this->in_ports[port_id];
this->n_inputs--;
} else {
port = &this->out_ports[port_id];
this->n_outputs--;
}
clear_port (this, port, direction, port_id);
port->valid = false;
}
static SpaResult
spa_proxy_node_add_port (SpaNode *node,
SpaDirection direction,
uint32_t port_id)
{
SpaProxy *this;
SpaProxyPort *port;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaProxy, node);
if (!CHECK_FREE_PORT (this, direction, port_id))
return SPA_RESULT_INVALID_PORT;
port = direction == SPA_DIRECTION_INPUT ? &this->in_ports[port_id] : &this->out_ports[port_id];
clear_port (this, port, direction, port_id);
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_remove_port (SpaNode *node,
SpaDirection direction,
uint32_t port_id)
{
SpaProxy *this;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaProxy, node);
if (!CHECK_PORT (this, direction, port_id))
return SPA_RESULT_INVALID_PORT;
do_uninit_port (this, direction, port_id);
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_port_enum_formats (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
SpaFormat **format,
const SpaFormat *filter,
uint32_t index)
{
SpaProxy *this;
SpaProxyPort *port;
if (node == NULL || format == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaProxy, node);
if (!CHECK_PORT (this, direction, port_id))
return SPA_RESULT_INVALID_PORT;
port = direction == SPA_DIRECTION_INPUT ? &this->in_ports[port_id] : &this->out_ports[port_id];
if (index >= port->n_formats)
return SPA_RESULT_ENUM_END;
*format = port->formats[index];
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_port_set_format (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
SpaPortFormatFlags flags,
const SpaFormat *format)
{
SpaProxy *this;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaProxy, node);
if (!CHECK_PORT (this, direction, port_id))
return SPA_RESULT_INVALID_PORT;
if (this->resource == NULL)
return SPA_RESULT_OK;
pinos_client_node_notify_set_format (this->resource,
this->seq,
direction,
port_id,
flags,
format);
return SPA_RESULT_RETURN_ASYNC (this->seq++);
}
static SpaResult
spa_proxy_node_port_get_format (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
const SpaFormat **format)
{
SpaProxy *this;
SpaProxyPort *port;
if (node == NULL || format == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaProxy, node);
if (!CHECK_PORT (this, direction, port_id))
return SPA_RESULT_INVALID_PORT;
port = direction == SPA_DIRECTION_INPUT ? &this->in_ports[port_id] : &this->out_ports[port_id];
if (!port->format)
return SPA_RESULT_NO_FORMAT;
*format = port->format;
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_port_get_info (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
const SpaPortInfo **info)
{
SpaProxy *this;
SpaProxyPort *port;
if (node == NULL || info == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaProxy, node);
if (!CHECK_PORT (this, direction, port_id))
return SPA_RESULT_INVALID_PORT;
port = direction == SPA_DIRECTION_INPUT ? &this->in_ports[port_id] : &this->out_ports[port_id];
*info = port->info;
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_port_get_props (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
SpaProps **props)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_proxy_node_port_set_props (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
const SpaProps *props)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_proxy_node_port_set_input (SpaNode *node,
uint32_t port_id,
SpaPortInput *input)
{
SpaProxy *this;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaProxy, node);
if (!CHECK_PORT (this, SPA_DIRECTION_INPUT, port_id))
return SPA_RESULT_INVALID_PORT;
this->in_ports[port_id].io = input;
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_port_set_output (SpaNode *node,
uint32_t port_id,
SpaPortOutput *output)
{
SpaProxy *this;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaProxy, node);
if (!CHECK_PORT (this, SPA_DIRECTION_OUTPUT, port_id))
return SPA_RESULT_INVALID_PORT;
this->out_ports[port_id].io = output;
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_port_use_buffers (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
SpaBuffer **buffers,
uint32_t n_buffers)
{
SpaProxy *this;
SpaProxyPort *port;
uint32_t i, j;
size_t n_mem;
PinosClientNodeBuffer *mb;
SpaMetaShared *msh;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaProxy, node);
spa_log_info (this->log, "proxy %p: use buffers %p %u", this, buffers, n_buffers);
if (!CHECK_PORT (this, direction, port_id))
return SPA_RESULT_INVALID_PORT;
port = direction == SPA_DIRECTION_INPUT ? &this->in_ports[port_id] : &this->out_ports[port_id];
if (!port->format)
return SPA_RESULT_NO_FORMAT;
clear_buffers (this, port);
if (n_buffers > 0) {
mb = alloca (n_buffers * sizeof (PinosClientNodeBuffer));
} else {
mb = NULL;
}
port->n_buffers = n_buffers;
if (this->resource == NULL)
return SPA_RESULT_OK;
n_mem = 0;
for (i = 0; i < n_buffers; i++) {
ProxyBuffer *b = &port->buffers[i];
msh = spa_buffer_find_meta (buffers[i], SPA_META_TYPE_SHARED);
if (msh == NULL) {
spa_log_error (this->log, "missing shared metadata on buffer %d", i);
return SPA_RESULT_ERROR;
}
b->outbuf = buffers[i];
memcpy (&b->buffer, buffers[i], sizeof (SpaBuffer));
b->buffer.datas = b->datas;
b->buffer.metas = b->metas;
mb[i].buffer = &b->buffer;
mb[i].mem_id = n_mem++;
mb[i].offset = 0;
mb[i].size = msh->size;
pinos_client_node_notify_add_mem (this->resource,
direction,
port_id,
mb[i].mem_id,
SPA_DATA_TYPE_MEMFD,
msh->fd,
msh->flags,
msh->offset,
msh->size);
for (j = 0; j < buffers[i]->n_metas; j++) {
memcpy (&b->buffer.metas[j], &buffers[i]->metas[j], sizeof (SpaMeta));
}
for (j = 0; j < buffers[i]->n_datas; j++) {
SpaData *d = &buffers[i]->datas[j];
memcpy (&b->buffer.datas[j], d, sizeof (SpaData));
switch (d->type) {
case SPA_DATA_TYPE_DMABUF:
case SPA_DATA_TYPE_MEMFD:
pinos_client_node_notify_add_mem (this->resource,
direction,
port_id,
n_mem,
d->type,
d->fd,
d->flags,
d->mapoffset,
d->maxsize);
b->buffer.datas[j].type = SPA_DATA_TYPE_ID;
b->buffer.datas[j].data = SPA_UINT32_TO_PTR (n_mem);
n_mem++;
break;
case SPA_DATA_TYPE_MEMPTR:
b->buffer.datas[j].data = SPA_INT_TO_PTR (b->size);
b->size += d->maxsize;
break;
default:
b->buffer.datas[j].type = SPA_DATA_TYPE_INVALID;
b->buffer.datas[j].data = 0;
spa_log_error (this->log, "invalid memory type %d", d->type);
break;
}
}
}
pinos_client_node_notify_use_buffers (this->resource,
this->seq,
direction,
port_id,
n_buffers,
mb);
return SPA_RESULT_RETURN_ASYNC (this->seq++);
}
static SpaResult
spa_proxy_node_port_alloc_buffers (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
SpaAllocParam **params,
uint32_t n_params,
SpaBuffer **buffers,
uint32_t *n_buffers)
{
SpaProxy *this;
SpaProxyPort *port;
if (node == NULL || buffers == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaProxy, node);
if (!CHECK_PORT (this, direction, port_id))
return SPA_RESULT_INVALID_PORT;
port = direction == SPA_DIRECTION_INPUT ? &this->in_ports[port_id] : &this->out_ports[port_id];
if (!port->format)
return SPA_RESULT_NO_FORMAT;
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_proxy_node_port_reuse_buffer (SpaNode *node,
uint32_t port_id,
uint32_t buffer_id)
{
SpaProxy *this;
SpaNodeEventReuseBuffer rb;
PinosNode *pnode;
//uint64_t cmd = 1;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaProxy, node);
pnode = this->pnode;
if (!CHECK_OUT_PORT (this, SPA_DIRECTION_OUTPUT, port_id))
return SPA_RESULT_INVALID_PORT;
rb.event.type = SPA_NODE_EVENT_TYPE_REUSE_BUFFER;
rb.event.size = sizeof (rb);
rb.port_id = port_id;
rb.buffer_id = buffer_id;
pinos_transport_add_event (pnode->transport, &rb.event);
//write (this->data_source.fd, &cmd, 8);
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_port_send_command (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
SpaNodeCommand *command)
{
SpaProxy *this;
SpaResult res = SPA_RESULT_OK;
if (node == NULL || command == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaProxy, node);
switch (command->type) {
case SPA_NODE_COMMAND_INVALID:
return SPA_RESULT_INVALID_COMMAND;
case SPA_NODE_COMMAND_START:
case SPA_NODE_COMMAND_PAUSE:
case SPA_NODE_COMMAND_FLUSH:
case SPA_NODE_COMMAND_DRAIN:
case SPA_NODE_COMMAND_MARKER:
break;
default:
spa_log_warn (this->log, "unhandled command %d", command->type);
res = SPA_RESULT_NOT_IMPLEMENTED;
break;
}
return res;
}
static SpaResult
spa_proxy_node_process_input (SpaNode *node)
{
SpaProxy *this;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaProxy, node);
send_have_output (this);
return SPA_RESULT_OK;
}
static SpaResult
spa_proxy_node_process_output (SpaNode *node)
{
SpaProxy *this;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaProxy, node);
send_need_input (this);
return SPA_RESULT_OK;
}
static SpaResult
handle_node_event (SpaProxy *this,
SpaNodeEvent *event)
{
switch (event->type) {
case SPA_NODE_EVENT_TYPE_INVALID:
break;
case SPA_NODE_EVENT_TYPE_ASYNC_COMPLETE:
case SPA_NODE_EVENT_TYPE_HAVE_OUTPUT:
case SPA_NODE_EVENT_TYPE_NEED_INPUT:
case SPA_NODE_EVENT_TYPE_REUSE_BUFFER:
case SPA_NODE_EVENT_TYPE_ERROR:
case SPA_NODE_EVENT_TYPE_BUFFERING:
case SPA_NODE_EVENT_TYPE_REQUEST_REFRESH:
case SPA_NODE_EVENT_TYPE_REQUEST_CLOCK_UPDATE:
this->event_cb (&this->node, event, this->user_data);
break;
}
return SPA_RESULT_OK;
}
static void
client_node_update (void *object,
uint32_t change_mask,
uint32_t max_input_ports,
uint32_t max_output_ports,
const SpaProps *props)
{
PinosResource *resource = object;
PinosClientNode *node = resource->object;
PinosClientNodeImpl *impl = SPA_CONTAINER_OF (node, PinosClientNodeImpl, this);
SpaProxy *this = &impl->proxy;
if (change_mask & PINOS_MESSAGE_NODE_UPDATE_MAX_INPUTS)
this->max_inputs = max_input_ports;
if (change_mask & PINOS_MESSAGE_NODE_UPDATE_MAX_OUTPUTS)
this->max_outputs = max_output_ports;
spa_log_info (this->log, "proxy %p: got node update max_in %u, max_out %u", this,
this->max_inputs, this->max_outputs);
}
static void
client_node_port_update (void *object,
SpaDirection direction,
uint32_t port_id,
uint32_t change_mask,
uint32_t n_possible_formats,
const SpaFormat **possible_formats,
const SpaFormat *format,
const SpaProps *props,
const SpaPortInfo *info)
{
PinosResource *resource = object;
PinosClientNode *node = resource->object;
PinosClientNodeImpl *impl = SPA_CONTAINER_OF (node, PinosClientNodeImpl, this);
SpaProxy *this = &impl->proxy;
bool remove;
spa_log_info (this->log, "proxy %p: got port update", this);
if (!CHECK_PORT_ID (this, direction, port_id))
return;
remove = (change_mask == 0);
if (remove) {
do_uninit_port (this, direction, port_id);
} else {
do_update_port (this,
direction,
port_id,
change_mask,
n_possible_formats,
possible_formats,
format,
props,
info);
}
}
static void
client_node_state_change (void *object,
SpaNodeState state)
{
PinosResource *resource = object;
PinosClientNode *node = resource->object;
PinosClientNodeImpl *impl = SPA_CONTAINER_OF (node, PinosClientNodeImpl, this);
SpaProxy *this = &impl->proxy;
SpaNodeState old = this->node.state;
spa_log_info (this->log, "proxy %p: got node state change %d -> %d", this, old, state);
this->node.state = state;
if (old == SPA_NODE_STATE_INIT)
send_async_complete (this, 0, SPA_RESULT_OK);
}
static void
client_node_event (void *object,
SpaNodeEvent *event)
{
PinosResource *resource = object;
PinosClientNode *node = resource->object;
PinosClientNodeImpl *impl = SPA_CONTAINER_OF (node, PinosClientNodeImpl, this);
SpaProxy *this = &impl->proxy;
handle_node_event (this, event);
}
static void
client_node_destroy (void *object,
uint32_t seq)
{
PinosResource *resource = object;
PinosClientNode *node = resource->object;
pinos_client_node_destroy (node);
}
static PinosClientNodeInterface client_node_interface = {
&client_node_update,
&client_node_port_update,
&client_node_state_change,
&client_node_event,
&client_node_destroy,
};
static void
proxy_on_data_fd_events (SpaSource *source)
{
SpaProxy *this = source->data;
PinosNode *pnode = this->pnode;
if (source->rmask & (SPA_IO_ERR | SPA_IO_HUP)) {
spa_log_warn (this->log, "proxy %p: got error", this);
return;
}
if (source->rmask & SPA_IO_IN) {
SpaNodeEvent event;
uint64_t cmd;
read (this->data_source.fd, &cmd, 8);
while (pinos_transport_next_event (pnode->transport, &event) == SPA_RESULT_OK) {
SpaNodeEvent *ev = alloca (event.size);
pinos_transport_parse_event (pnode->transport, ev);
this->event_cb (&this->node, ev, this->user_data);
}
}
}
static const SpaNode proxy_node = {
sizeof (SpaNode),
NULL,
SPA_NODE_STATE_INIT,
spa_proxy_node_get_props,
spa_proxy_node_set_props,
spa_proxy_node_send_command,
spa_proxy_node_set_event_callback,
spa_proxy_node_get_n_ports,
spa_proxy_node_get_port_ids,
spa_proxy_node_add_port,
spa_proxy_node_remove_port,
spa_proxy_node_port_enum_formats,
spa_proxy_node_port_set_format,
spa_proxy_node_port_get_format,
spa_proxy_node_port_get_info,
spa_proxy_node_port_get_props,
spa_proxy_node_port_set_props,
spa_proxy_node_port_use_buffers,
spa_proxy_node_port_alloc_buffers,
spa_proxy_node_port_set_input,
spa_proxy_node_port_set_output,
spa_proxy_node_port_reuse_buffer,
spa_proxy_node_port_send_command,
spa_proxy_node_process_input,
spa_proxy_node_process_output,
};
static SpaResult
proxy_init (SpaProxy *this,
SpaDict *info,
const SpaSupport *support,
uint32_t n_support)
{
uint32_t i;
for (i = 0; i < n_support; i++) {
if (strcmp (support[i].uri, SPA_LOG_URI) == 0)
this->log = support[i].data;
else if (strcmp (support[i].uri, SPA_LOOP__MainLoop) == 0)
this->main_loop = support[i].data;
else if (strcmp (support[i].uri, SPA_LOOP__DataLoop) == 0)
this->data_loop = support[i].data;
}
if (this->data_loop == NULL) {
spa_log_error (this->log, "a main-loop is needed");
}
if (this->data_loop == NULL) {
spa_log_error (this->log, "a data-loop is needed");
}
this->node = proxy_node;
this->data_source.func = proxy_on_data_fd_events;
this->data_source.data = this;
this->data_source.fd = -1;
this->data_source.mask = SPA_IO_IN | SPA_IO_ERR | SPA_IO_HUP;
this->data_source.rmask = 0;
return SPA_RESULT_RETURN_ASYNC (this->seq++);
}
static void
on_transport_changed (PinosListener *listener,
PinosNode *node)
{
PinosClientNodeImpl *impl = SPA_CONTAINER_OF (listener, PinosClientNodeImpl, transport_changed);
PinosClientNode *this = &impl->this;
PinosTransportInfo info;
if (this->resource == NULL)
return;
pinos_transport_get_info (node->transport, &info);
pinos_client_node_notify_transport (this->resource,
info.memfd,
info.offset,
info.size);
}
static void
on_loop_changed (PinosListener *listener,
PinosNode *node)
{
PinosClientNodeImpl *impl = SPA_CONTAINER_OF (listener, PinosClientNodeImpl, loop_changed);
impl->proxy.data_loop = node->data_loop->loop->loop;
}
static void
on_global_added (PinosListener *listener,
PinosCore *core,
PinosGlobal *global)
{
PinosClientNodeImpl *impl = SPA_CONTAINER_OF (listener, PinosClientNodeImpl, global_added);
if (global->object == impl->this.node)
global->owner = impl->this.client;
}
static SpaResult
proxy_clear (SpaProxy *this)
{
uint32_t i;
for (i = 0; i < MAX_INPUTS; i++) {
if (this->in_ports[i].valid)
clear_port (this, &this->in_ports[i], SPA_DIRECTION_INPUT, i);
}
for (i = 0; i < MAX_OUTPUTS; i++) {
if (this->out_ports[i].valid)
clear_port (this, &this->out_ports[i], SPA_DIRECTION_OUTPUT, i);
}
if (this->data_source.fd != -1) {
spa_loop_remove_source (this->data_loop, &this->data_source);
close (this->data_source.fd);
}
return SPA_RESULT_OK;
}
static void
client_node_resource_destroy (PinosResource *resource)
{
PinosClientNode *this = resource->object;
PinosClientNodeImpl *impl = SPA_CONTAINER_OF (this, PinosClientNodeImpl, this);
pinos_log_debug ("client-node %p: destroy", impl);
pinos_signal_emit (&this->destroy_signal, this);
impl->proxy.resource = this->resource = NULL;
pinos_signal_remove (&impl->global_added);
pinos_signal_remove (&impl->loop_changed);
pinos_signal_remove (&impl->transport_changed);
pinos_node_destroy (this->node);
}
static void
on_node_free (PinosListener *listener,
PinosNode *node)
{
PinosClientNodeImpl *impl = SPA_CONTAINER_OF (listener, PinosClientNodeImpl, node_free);
pinos_log_debug ("client-node %p: free", &impl->this);
proxy_clear (&impl->proxy);
pinos_signal_remove (&impl->node_free);
if (impl->data_fd != -1)
close (impl->data_fd);
free (impl);
}
/**
* pinos_client_node_new:
* @daemon: a #PinosDaemon
* @name: a name
* @properties: extra properties
*
* Create a new #PinosNode.
*
* Returns: a new #PinosNode
*/
PinosClientNode *
pinos_client_node_new (PinosClient *client,
uint32_t id,
const char *name,
PinosProperties *properties)
{
PinosClientNodeImpl *impl;
PinosClientNode *this;
impl = calloc (1, sizeof (PinosClientNodeImpl));
if (impl == NULL)
return NULL;
this = &impl->this;
this->client = client;
impl->core = client->core;
impl->data_fd = -1;
pinos_log_debug ("client-node %p: new", impl);
pinos_signal_init (&this->destroy_signal);
proxy_init (&impl->proxy, NULL, client->core->support, client->core->n_support);
this->node = pinos_node_new (client->core,
name,
&impl->proxy.node,
NULL,
properties);
if (this->node == NULL)
goto error_no_node;
impl->proxy.pnode = this->node;
this->resource = pinos_resource_new (client,
id,
client->core->uri.client_node,
this,
(PinosDestroy) client_node_resource_destroy);
if (this->resource == NULL)
goto error_no_resource;
impl->proxy.resource = this->resource;
pinos_signal_add (&this->node->free_signal,
&impl->node_free,
on_node_free);
pinos_signal_add (&this->node->transport_changed,
&impl->transport_changed,
on_transport_changed);
pinos_signal_add (&this->node->loop_changed,
&impl->loop_changed,
on_loop_changed);
pinos_signal_add (&impl->core->global_added,
&impl->global_added,
on_global_added);
this->resource->interface = &client_node_interface;
return this;
error_no_resource:
pinos_node_destroy (this->node);
error_no_node:
proxy_clear (&impl->proxy);
free (impl);
return NULL;
}
void
pinos_client_node_destroy (PinosClientNode * this)
{
pinos_resource_destroy (this->resource);
}
/**
* pinos_client_node_get_data_socket:
* @node: a #PinosClientNode
* @error: a #GError
*
* Create or return a previously create socket pair for @node. The
* Socket for the other end is returned.
*
* Returns: %SPA_RESULT_OK on success
*/
SpaResult
pinos_client_node_get_data_socket (PinosClientNode *this,
int *fd)
{
PinosClientNodeImpl *impl = SPA_CONTAINER_OF (this, PinosClientNodeImpl, this);
if (impl->data_fd == -1) {
#if 1
int fd[2];
if (socketpair (AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0, fd) != 0)
return SPA_RESULT_ERRNO;
impl->proxy.data_source.fd = fd[0];
impl->data_fd = fd[1];
#else
impl->proxy.data_source.fd = eventfd (0, EFD_CLOEXEC | EFD_NONBLOCK);
impl->data_fd = eventfd (0, EFD_CLOEXEC | EFD_NONBLOCK);
#endif
spa_loop_add_source (impl->proxy.data_loop, &impl->proxy.data_source);
pinos_log_debug ("client-node %p: add data fd %d", this, impl->proxy.data_source.fd);
}
*fd = impl->data_fd;
return SPA_RESULT_OK;
}
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